22 décembre

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:10
  Overlay video onto another video at multiple points in time - kbcool Newest 'ffmpeg' Questions - Stack Overflow
  I have a case where I want to have a background video and use a second video overlaying the first but at multiple points in time. The second video is shorter. So for example the main video is a minute long and the second video is 10 seconds. I want to overlay the second video once at 15seconds then again at 35 seconds and then again at 55 seconds (terminating when the main video does). I am able to get the second video to overlay successfully using overlay filter and between option but it only ever works for the first overlay. The second overlay seems to show the last (...)
• 11:38
  Python aiortc: How to record audio and video come from client in the same file? - Chris P Newest 'ffmpeg' Questions - Stack Overflow
  I have an aiortc app, which html5 client send data (microphone,camera) into server. In server side i sucessfully played this two streams seperatly. But when i try to record using aiortc MediaRecorder helper class, only the voice is recording, and the video is dropped (mp4 format). I think this is due sync issue. The audio_frame and the video_frame (each pair of them) have different time_base. (I don't know if this is strange). But it also has different time. I can share code, but couldn't help at all right now. Edit: I also tried to (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 08:08
  avformat/iff: remove surplus if statement - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avformat/iff: remove surplus if statement Fixes CID 1636854 [DH] libavformat/iff.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 04:08
  Real time playback of two blended videos with alpha channel and synched audio in pygame? - Francesco Calderone Newest 'ffmpeg' Questions - Stack Overflow
  I need to play two videos with synched sound in real-time with Pygame. Pygame does not currently support video streams, so I am using a ffmpeg subprocess. The first video is a prores422_hq. This is a background video with no alpha channel. The second video is a prores4444 overlay video with an alpha channel, and it needs to be played in real-tim on top of the first video (with transparency). All of this needs synched sound from the first base video only. I have tried many libraries, including pymovie pyav and opencv. The best result so far is to use a subprocess with (...)
• 04:14
  Encapsulation of raw opus frames to ogg using ffmpeg.autogen - Miloš Šula Newest 'ffmpeg' Questions - Stack Overflow
  I need to encapsulate raw opus frames ( from rtpdump similar format ), but i have trouble with function ffmpeg.avformat_write_header - Error writing opus headers -1094995529 public unsafe class OpusMuxer public static void ConvertRawOpusToOggOpus(string inputPath, string outputPath, int sampleRate = 48000, int channels = 2) ffmpeg.av_log_set_level(ffmpeg.AV_LOG_INFO); AVOutputFormat* fmt = ffmpeg.av_guess_format("ogg", null, null); if (fmt == null) Console.WriteLine("Nepodařilo se zjistit výstupní formát (ogg).");  (...)
• 01:13
  Read multiple frames in demuxer - Aycon Newest 'ffmpeg' Questions - Stack Overflow
  I use FFmpeg.AutoGen. This is C# wrapper of ffmpeg (7.0) C++ library for reading mediafiles and generate stream of frames for other application. I want get n frames and hold pointers in memory indefinitely. However, I am completely confused trying to figure out which API is deprecated and how I can tell ffmpeg to hold the pointers in memory until I tell it to. I don't want to copy the frame after receiving it if I can avoid it. I tried many ways. My last attempt was to receive the frames using ffmpeg.avcodec_send_packet(), ffmpeg.av_read_frame() and (...) -- manual

21 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 10:01
  avcodec/hevcdec: remove hevc prefix for x86 asm files - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/hevcdec: remove hevc prefix for x86 asm files [DH] libavcodec/x86/Makefile [DH] libavcodec/x86/hevc/Makefile [DH] libavcodec/x86/hevc/add_res.asm [DH] libavcodec/x86/hevc/deblock.asm [DH] libavcodec/x86/hevc/dsp_init.c [DH] libavcodec/x86/hevc/idct.asm [DH] libavcodec/x86/hevc/mc.asm [DH] libavcodec/x86/hevc/sao.asm [DH] libavcodec/x86/hevc/sao_10bit.asm [DH] libavcodec/x86/hevc_add_res.asm [DH] libavcodec/x86/hevc_deblock.asm [DH] libavcodec/x86/hevc_idct.asm [DH] libavcodec/x86/hevc_mc.asm [DH] libavcodec/x86/hevc_sao.asm [DH] libavcodec/x86/hevc_sao_10bit.asm [DH] (...)
• 10:01
  avcodec/vvcdec: remove vvc prefix for x86 and riscv - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vvcdec: remove vvc prefix for x86 and riscv [DH] libavcodec/riscv/vvc/Makefile [DH] libavcodec/riscv/vvc/dsp_init.c [DH] libavcodec/riscv/vvc/mc_rvv.S [DH] libavcodec/riscv/vvc/sad_rvv.S [DH] libavcodec/riscv/vvc/vvc_mc_rvv.S [DH] libavcodec/riscv/vvc/vvc_sad_rvv.S [DH] libavcodec/riscv/vvc/vvcdsp_init.c [DH] libavcodec/x86/vvc/Makefile [DH] libavcodec/x86/vvc/alf.asm [DH] libavcodec/x86/vvc/dmvr.asm [DH] libavcodec/x86/vvc/dsp_init.c [DH] libavcodec/x86/vvc/mc.asm [DH] libavcodec/x86/vvc/of.asm [DH] libavcodec/x86/vvc/sad.asm [DH] libavcodec/x86/vvc/vvc_alf.asm [DH] (...)

ginger’s thoughts http://blog.gingertech.net/

• 21:48
  SWAY at RFWS using Coviu - silvia ginger’s thoughts
  A SWAY session by Joanne of Royal Far West School. http://sway.org.au/ via https://coviu.com/ SWAY is an oral language and literacy program based on Aboriginal knowledge, culture and stories. It has been developed by Educators, Aboriginal Education Officers and Speech Pathologists at the Royal Far West School in Manly, NSW. Category: Array Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post SWAY at RFWS using Coviu first appeared on ginger's thoughts.
• 21:48
  PARADISEC catalog for Users - silvia ginger’s thoughts
  This screencast shows how a user of the PARADISEC catalog logs in and explores the collections, items and files that the archive contains. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Users first appeared on ginger's thoughts.
• 21:48
  PARADISEC catalog for Collectors - silvia ginger’s thoughts
  Screencast of how to use the PARADISEC catalog for managing and publishing collections. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Collectors first appeared on ginger's thoughts.
• 21:48
  PARADISEC catalog for Administrators - silvia ginger’s thoughts
  Screencast of how a PARADISEC administrator uses the PARADISEC catalog for managing the consistency of metadata and staying on top of uploaded files. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Administrators first appeared on ginger's thoughts.
• 21:48
  Silvia Pfeiffer Live Stream - silvia ginger’s thoughts
  Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post Silvia Pfeiffer Live Stream first appeared on ginger's thoughts.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:12
  Detect if an interlaced video frame is the Top or Bottom field? - Danny Newest 'ffmpeg' Questions - Stack Overflow
  I'm decoding video PES packets (packetized elementary stream) containing H.264/AVC and H.265/HEVC using libavcodec like this: while (remainingESBytes > 0) int bytesUsed = av_parser_parse2( mpParser, mpDecContext, &mpEncPacket->data, &mpEncPacket->size, pIn, remainingESBytes, AV_NOPTS_VALUE, AV_NOPTS_VALUE, 0); // send encoded packet for decoding int ret = avcodec_send_packet(mpDecContext, mpEncPacket); if (ret < 0) // failed continue; while (ret >= 0) ret = (...)
• 14:35
  My discord music bot is not playing the entire music - james12 Newest 'ffmpeg' Questions - Stack Overflow
  My discord music bot based on discord.py, yt_dlp and ffmpeg is not working. I downloaded every module that is required and added environmental variables. But, my discord bot is not working properly. The bot plays the music properly at first, but the music ends before the song finishes. Full code below: import discord from discord.ext import commands import yt_dlp app = commands.Bot(command_prefix='!', intents=discord.Intents.all()) ydl_opts = 'format': 'bestaudio/best', 'extractaudio': True,  (...)
• 01:21
  How to render a blend of two videos with alpha channel in python in real time? [closed] - Francesco Calderone Newest 'ffmpeg' Questions - Stack Overflow
  I need to play two videos in real time in Python. One video is a background video with no alpha channel. I am using H264 but it can be any codec. The second video is an overlay video. This video with an alpha channel needs to be played in real-time on top of the first video. I am using Quicktime 444 with an alpha channel but again, it can be any codec. In terms of libraries, I tried a combination of cv and numpy, I tried pymovie, pyAV, ffmpeg... so far, all the results have been unsuccessful. When the videos render, the frame rate drops way below 30FPS, and the resulting (...)
• 10:41
  How to render two videos with alpha channel in real time in pygame with synched audio? - Francesco Calderone Newest 'ffmpeg' Questions - Stack Overflow
  I need to play two videos with synched sound in real-time with Pygame. Pygame does not currently support video streams, so I am using a ffmpeg subprocess. The first video is a prores422_hq. This is a background video with no alpha channel. The second video is a prores4444 overlay video with an alpha channel, and it needs to be played in real-tim on top of the first video (with transparency). All of this needs synched sound from the first base video only. I have tried many libraries, including pymovie pyav and opencv. The best result so far is to use a subprocess with (...)
• 09:51
  How to render two videos with alpha channel in real time in pygame? - Francesco Calderone Newest 'ffmpeg' Questions - Stack Overflow
  I need to play two videos with synched sound in real-time with Pygame. Pygame does not currently support video streams, so I am using a ffmpeg subprocess. The first video is a prores422_hq. This is a background video with no alpha channel. The second video is a prores4444 overlay video with an alpha channel, and it needs to be played in real-tim on top of the first video (with transparency). All of this needs synched sound from the first base video only. I have tried many libraries, including pymovie pyav and opencv. The best result so far is to use a subprocess with (...)
• 09:57
  Rounded corners in subtitle (Advanced Substation Alpha [.ass]) - Leander Mihm Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible to have rounded corners with the BorderStyle 4 in .ass (Advanced Substation Alpha)? I only found out that the BorderStyle 4 exists, because I was looking at this stackoverflow. Is there any good and complete documentation of the Advanced Substation Alpha format? I'm currently using the following configuration: BorderStyle=4 Outline=10 --
• 05:49
  How to improve the fluency of rtsp streaming through ffmpeg (processing 16 pictures at the same time) - Ling Yun Newest 'ffmpeg' Questions - Stack Overflow
  When the button is clicked, I create 16 threads in Qt, and then pass the rtsp data address and the label to be rendered to the process, and then the process does this: run: void rtspthread::run() while(!shouldStop) openRtspStream(rtspUrl.toUtf8().constData(),index); qDebug() << "RTSP stream stopped."; emit finished(); open input stream: void rtspthread::openRtspStream(const char* rtspUrl,int index) AVDictionary *options = nullptr; AVFrame *pFrameRGB = nullptr; uint8_t (...)
• 04:02
  ffprobe newer version detect audio codec incorrectly - alancc Newest 'ffmpeg' Questions - Stack Overflow
  I find a strange problem. I have a test video with h264 video codec and aac audio codec. It is at https://drive.google.com/file/d/1YAyz5cO0kb9r0MgahCpISR4bZ_1_n8PL/view?usp=sharing I build a ffmpeg version by myself, its version is: ffprobe version 7.0.2 Copyright (c) 2007-2024 the FFmpeg developers built with gcc 14.1.0 (Rev3, Built by MSYS2 project) configuration: --enable-shared libavutil 59. 8.100 / 59. 8.100 libavcodec 61. 3.100 / 61. 3.100 libavformat 61. 1.100 / 61. 1.100 libavdevice 61. 1.100 / 61. 1.100 libavfilter 10. 1.100 / 10. (...) -- https://drive.google.com/file/d/1YAyz5cO0kb9r0MgahCpISR4bZ_1_n8PL/view?usp=sharing

20 décembre

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:13
  How to check if OpenCV VideoCapture uses multithreading or multiprocessing internally when connecting to a camera [closed] - Chen Newest 'ffmpeg' Questions - Stack Overflow
  I'm using OpenCV's cv::VideoCapture in C++ (or Python) to connect to a camera stream. I would like to know if OpenCV internally uses multithreading or multiprocessing when opening and capturing frames from the camera. Specifically, I'm curious about: Whether OpenCV spawns new threads or processes when using cv::VideoCapture. If FFmpeg is enabled as the backend, does it use multithreading or multiprocessing under the hood? How can I verify the threading or process behavior during camera streaming? What I Tried: I checked the (...)
• 16:50
  Cannot display a decoded video frame on Raylib - gabriel_tiso Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to explore libav and raylib just to understand how audio and video work, and also to learn how to build nice interfaces using the raylib project. I've implemented a simple struct capable of decoding audio and video frames. When a video frame appears, I convert it to the RGBA format, which packs the values into 32bpp. This is the setup: if (av_image_alloc((uint8_t **)media->dst_frame->data, media->dst_frame->linesize, media->ctxs[0]->width, media->ctxs[0]->height, AV_PIX_FMT_RGBA, 1) < 0) fprintf(stderr, "Failed to setup dest image\\n");  (...) --
• 11:02
  FFMPEG spoils the extreme pixels when converting and cropping images [closed] - Jacob Newest 'ffmpeg' Questions - Stack Overflow
  I have a side image processing task in my work. I am using the following command to translate a spherical panorama into a cubemap: Path/ffmpeg.exe -i "Path/PanoImageInput.png" -vf v360=equirect:c6x1:fin_pad=64:out_frot=002200,scale=-1:2048:flags=neighbor "Path/CubemapOutput.png" And then I slice it into separate images, 1 face for example: Path/ffmpeg.exe -i "Path/CubemapOutput.png" -vf crop=2048:2048:0:0 -sws_flags neighbor "Path/face_1.png" I get artifacts on both cubemap and images of this kind that really bother me: Cubemap image junction The junction (...) -- Cubemap image junction, The junction and part of the edge of the cubemap image
• 10:23
  LibAV: converting PTS to frame number - Michael IV Newest 'ffmpeg' Questions - Stack Overflow
  I am developing an mp4 demuxer with LibAV. I need a helper function which converts PTS to frame numbers. I came up with the following code which works. But I am not sure how correct it is in the LibAV realm for any video input. In my case video fps = 25, timescale = 25000. Each next PTS is incremented by 40,giving me correct frameNumber. static double get_frame_rate(AVStream* stream) if (stream->r_frame_rate.num > 0 && stream->r_frame_rate.den > 0) return av_q2d(stream->r_frame_rate); else if (stream->avg_frame_rate.num > 0 && (...)
• 08:05
  How to stop ffmpeg remotely? - Adam Newest 'ffmpeg' Questions - Stack Overflow
  I'm running ffmpeg on another machine for screen capture. I'd like to be able to stop it recording remotely. FFMPEG requires that q is pressed to stop encoding as it has to do some finalization to finish the file cleanly. I know I could kill it with kill/killall however this can lead to corrupt videos. Press [q] to stop encoding I can't find anything on google specifically for this, but some there is suggestion that echoing into /proc//fd/0 will work. I've tried this but it does not stop ffmpeg. The q is however shown in the terminal (...)
• 07:57
  How to adjust audio volume with AVFilter API from FFmpeg in Linux? - wangt13 Newest 'ffmpeg' Questions - Stack Overflow
  I am working on an embedded Linux system (kernel-5.10.24), and developing an audio player by using FFmpeg and ALSA libraries. Now the basic functions are done, and I can play MP3 file by using AVCodec and SWresample interfaces of FFmpeg. int decode_play(void) ..... while (1) if (av_read_frame(pfmtctx, packet) < 0) avcodec_flush_buffers(pcodectx); printf("Got end of media, breaking\\n"); break; if (packet->stream_index != stream) continue; int res = avcodec_send_packet(pcodectx, packet); if (res < 0)  (...)
• 01:18
  ffmpeg underutilizes cpu on AWS EC2 instance [closed] - Denis Newest 'ffmpeg' Questions - Stack Overflow
  i'm running video encoding with ffmpeg on EC2 instance (c5.xlarge - 4 vcpus) ffmpeg \\ -i "$INPUT_URL" \\ -c:v libvpx-vp9 -b:v 1M -threads 4 \\ -tile-columns 1 -frame-parallel 1 \\ -row-mt 1 \\ -cpu-used 0 \\ -quality 1 \\ -speed 3 \\ -r 6 \\ -f segment -segment_time "$SEGMENT_DURATION" -reset_timestamps 1 \\ "$OUTPUT_DIR/$OUTPUT_FILE_PREFIX$(date +%s)%03d.webm" > ffmpeg.log 2>&1 & I expected the CPU utilization to be around 390%, but I observed it to be around 170% via top why and what i'm doing (...)
• 00:16
  iOS Radio App: Need to extract and stream audio-only from HLS streams with video content - Bader Alghamdi Newest 'ffmpeg' Questions - Stack Overflow
  I'm developing an iOS radio app that plays various HLS streams. The challenge is that some stations broadcast HLS streams containing both audio and video (example: https://svs.itworkscdn.net/smcwatarlive/smcwatar/chunks.m3u8), but I want to: Extract and play only the audio track Support AirPlay for audio-only streaming Minimize data usage by not downloading video content Technical Details: iOS 17+ Swift 6 Using AVFoundation for playback Current implementation uses AVPlayer with AVPlayerItem Current Code Structure: class StreamPlayer: (...) -- https://svs.itworkscdn.net/smcwatarlive/smcwatar/chunks.m3u8, https://mbcfm-radio.mbc.net/mbcfm-radio.m3u8
• 00:06
  ffmpeg command not found but pip list shows ffmpeg - your_doomsday07 Newest 'ffmpeg' Questions - Stack Overflow
  I have been trying to install ffmpeg using the command pip install ffmpeg and I am doing this in a server where we dont have sudo permissions. On writing ffmpeg I get ffmpeg: command not found. Then I checked with pip list and it showed ffmpeg. Please help me.

19 décembre

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:26
  Accurately calculate concatenated audio file size without actually concatenating for rss enclosure length - askrill Newest 'ffmpeg' Questions - Stack Overflow
  A little background. Im working on implementing DAI into a podcast hosting and the solution I’m working with is splitting the audio file for mid role ads and then just concatenating the files with the ad in middle. All files will be the same encoding, bitrate… what I need to figure out is what to put as the length of the encloser in the rss feed. In addition if the ad is gonna change per request then there’s no way to keep that encloser length accurate unless all the ads are the same (...)
• 20:55
  FFmpeg MOV to MP4, do I also need .OGG , .WEBM files too? - Chris Newest 'ffmpeg' Questions - Stack Overflow
  I am new to FFmpeg and I'm just getting started. I have the two following commands to take a .mov upload and downsize it and save it out as an .mp4. I also produce a thumbnail version of the same. What I am doing here seems to work well and I manage to get the .mov file from 12.5mb to about a 1mb .mp4. My question from here is, can I get away with only providing a .mp4 for the source video, or do I need to provide additional .ogg and/or .webm files too? An if so, how is that best achieved? Would I have to loop that FFmpeg command again to output new .ogg and .webm (...)
• 15:28
  ffmpeg fails to convert several ts files into one mp3 - Nadia Ghebreial Newest 'ffmpeg' Questions - Stack Overflow
  I'm joining several .ts files into one .mp3 file like this: import ffmpeg from 'fluent-ffmpeg' const tsDest = 'dir/file.ts' const mp3Dest = 'dir/file.mp3' const ff = ffmpeg(urls[0]) urls.slice(1).map(url => ff.input(url)) ff.on('error', function (err) logger.error('An error occurred: ' + err.message) reject(err) ) .on('end', function () return ffmpeg(tsDest) .videoCodec('libx264') .audioCodec('libmp3lame')  (...) -- https://github.com/damianociarla/node-ffmpeg/issues/101
• 12:31
  ffmpeg crash when updating overlay file (c# console app) - Vlad Stefan Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to develop a colsole app that can record the screen and have cpu/ram/gpu usage of the machine noted on the recording. The problem i am facing is that after a while (2-3 hours) the recording stops because ffmpeg is trying to read the filetext while my C# code tries to update the file. I managed to find out that I should use a temp file and replace the original instead of rewriting the whole file but that way I encounter another problem, ffmpeg will try to read the file while the file is replaced or even for that split second when is considered deleted. Any ideas what I should (...)
• 09:28
  FFmpeg `FileNotFoundError` ([WinError 2]) when probing a video file in Python - Mannu Newest 'ffmpeg' Questions - Stack Overflow
  I'm encountering a FileNotFoundError with the message [WinError 2] The system cannot find the file specified when trying to probe a video file using the Python ffmpeg-python library. This occurs despite the file existing, being readable, and having the correct path. I have verified file existence and permissions in my script. Here's the relevant output and my Python code: Output: Checking sample folder contents... Script location: C:\\Users\\me\\A\\B\\ProjFile\\vid_pro_tool\\src\\video_processing\\video_compressor.py Project root: (...)
• 04:39
  [ffmpeg]How to use libfdk_aac to encode pcm to constant bitrate - qyt Newest 'ffmpeg' Questions - Stack Overflow
  I have tried both libfdk_aac and aac, but the encoded PCM audio always has a variable bit rate. Why is this happening? How can I make it encode with a constant bit rate The code is as follows: #include #include #include extern "C" #include #include #include #include #include #include #include #include #include #include #include #include int main(int argc, char** argv) AVCodecContext* codec_context = NULL; const AVCodec* codec = NULL; AVFrame* frame = NULL; AVPacket* (...)

18 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 22:50
  avcodec/Makefile: include aom_film_grain.o file for h264_sei component - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avcodec/Makefile: include aom_film_grain.o file for h264_sei component h264_sei depends on h2645_sei, which in turn depends on aom_film_grain for ff_aom_uninit_film_grain_params() [DH] libavcodec/Makefile
• 21:29
  avformat/Makefile: include object files for image_vbn_pipe demuxer - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avformat/Makefile: include object files for image_vbn_pipe demuxer [DH] libavformat/Makefile
• 23:41
  avformat/isom: use more of the existing channel layout bitmap defines - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/isom: use more of the existing channel layout bitmap defines Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/isom.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:36
  sws_scale YUV --> RGB distorted image [closed] - Sami susu Newest 'ffmpeg' Questions - Stack Overflow
  I want to convert YUV420P image (received from H.264 stream) to RGB, while also resizing it, using sws_scale. The size of the original image is 480 × 800. Just converting with same dimensions works fine. But when I try to change the dimensions, I get a distorted image, with the following pattern: changing to 481 × 800 will yield a distorted B&W image which looks like it's cut in the middle 482 × 800 will be even more distorted 483 × 800 is distorted but in color 484 × 800 is ok (scaled correctly). Now (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 20:09
  avformat/Makefile: add iso_writer golomb_tab from shared library dependency - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avformat/Makefile: add iso_writer golomb_tab from shared library dependency [DH] libavformat/Makefile

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:12
  I need assistance of making a automated script for ffmpeg [closed] - user2614404 Newest 'ffmpeg' Questions - Stack Overflow
  Currently i use this script that GPT generated: ffmpeg -c:v av1_qsv -b:v 0 -global_quality 20 -preset veryslow -look_ahead 64 -c:a copy -c:s copy G:\\1ARC-movies\\A-View-to-a-kill.mkv -i Y:\\media\\Movies\\A_VIEW_TO_A_KILL_t05.mkv But sadly GPT being gpt, it hallucinates answers, and none of it's deeper automation code scripts were working when it made the scripts for a .ps1 script file. And as i find most of the docs quite overwhelming, i need help to simplify what i need. As i learn best when i get explained what i currently try to do, and not every variable ffmpeg can (...)
• 14:16
  How can I render a video in real time with custom parameters? - Joaquín L. Robles Newest 'ffmpeg' Questions - Stack Overflow
  Is it possible to render a video in real time with custom parameters? I'm trying to inject some parameters (text, image and other video portions) into a video template depending on user parameters, like the "Facebook 10 Years video".. The output format should be any video format such as H.264. I've been googling and asking and the closest I got is to make a video from HTML5 canvas captures, which I think is totally inefficient. Any insight or guidance would be great, (...) -- make a video from HTML5 canvas captures
• 11:47
  python - record and preview webcam at the same time, using e.g. ffmpeg - Jan Oechsler Newest 'ffmpeg' Questions - Stack Overflow
  I want to record webcam with sound using python. After tryng multiple different methods, ffmpeg with the python wrapper showed the best results. Recording works, but how can I preview the webcam at the same time, so I know where I am pointing the cam at? I've seen this post, but I dont understand how I could implement this in python, using the wrapper. Any ideas on how to do this? Or if there is another, easier, solution to record webcam video with sound and preview it simultaneously from within a python (Qt) application? This is my code so far: import (...)
• 10:16
  Create a bat file to exit FFMPEG (Windows) - user3812737 Newest 'ffmpeg' Questions - Stack Overflow
  Hello everyone I am using this bat file in order to capture my screen. ffmpeg -f dshow -i video=screen-capture-recorder -r 240001001 -q 1 lma_recording.avi When I press the q button the video capture stops. However I would like to stop the screen capturing with another bat file. I have tried this: taskkill /im ffmpeg.exe without luck Any suggestions?

17 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:23
  swscale/output: fix bilinear yuv2rgb chroma interpolation - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale/output: fix bilinear yuv2rgb chroma interpolation These functions were divided into two special cases; one assuming that uvalpha == 0, and the other assuming that uvalpha == 2048. This worked fine for simple 2x chroma upscaling but broke for e.g. yuv410p, non-centered chroma, or other special cases that involved non-aligned chroma filters. Fix it by instead dividing this check into two cases, a uvalpha==0 fast path and a uvalpha>0 general path. Instead of (A+B)/2 the general path now multiplies in the true uvalpha weight. I tried preserving the old fast path for the case of (...)
• 04:03
  lavc/riscv: vset macro for simplify if-else - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/riscv: vset macro for simplify if-else [DH] libavcodec/riscv/h26x/asm.S
• 12:59
  tests/swscale: allow nonzero positive return codes from sws_scale_frame() - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  tests/swscale: allow nonzero positive return codes from sws_scale_frame() See previous commit. Signed-off-by: Niklas Haas <gitⓐhaasn.dev> Sponsored-by: Sovereign Tech Fund [DH] libswscale/tests/swscale.c
• 12:57
  swscale: fix documentation of sws_scale_frame() - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale: fix documentation of sws_scale_frame() Since its introduction, this function has claimed to return 0 on success, yet never actually did so (until the introduction of the new graph based API). It always returned the number of scaled lines, and continues to do so. To avoid confusion, but also avoid regressing possible clients that relied on the existing semantics, simply update the documentation to reflect the actual behavior. Remain ambiguous about the exact interpretation of the return value on account of the unfortunate difference in behavior between the legacy and new scaling (...)
• 12:47
  avutil/mem_internal: Don't include stdalign.h on MSVC - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log
  avutil/mem_internal: Don't include stdalign.h on MSVC It's currently actually not used in MSVC builds, since 6e49b8699657b808b7dc80033f2c3f2d0e029fa3. Older versions of MSVC (or, in particular, older versions of UCRT) don't have stdalign.h; it's available since WinSDK 10.0.20348.0; such a new enough version has been installed by default only since MSVC 2022 17.4 and newer. With this change, ffmpeg can still be built with MSVC 2019 16.8 (v19.28). Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] (...)
• 12:45
  aarch64: vvc: Fix building the dmvr_hv assembly with older MSVC versions - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log
  aarch64: vvc: Fix building the dmvr_hv assembly with older MSVC versions Explicitly use ldur for unaligned offsets; newer versions of armasm64 implicitly convert ldr to ldur as necessary, but older versions require it explicitly written out. This fixes these build errors: ffmpeg\\libavcodec\\aarch64\\vvc\\inter.o.asm(2039) : error A2518: operand 2: Memory offset must be aligned ldr s5, [x1, #1] ffmpeg\\libavcodec\\aarch64\\vvc\\inter.o.asm(2250) : error A2518: operand 2: Memory offset must be aligned ldr d7, [x1, #2] Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:37
  Recursively convert images in each subfolder into individual videos using FFmpeg - arutan edram Newest 'ffmpeg' Questions - Stack Overflow
  I am using this script to convert all images in a folder into a video. Each image is shown for 4 seconds and the script runs from a bat file. `ffmpeg -framerate 1/4 -i %%03d.jpg -pix_fmt yuv420p video.mp4` I have hundreds of subfolders each containing images with the same resolution and I want to convert them into one moive per subfolder. I might be close to a solution but it still does not do the job ⓐecho off setlocal enabledelayedexpansion :: Set the frame rate and file format set "framerate=1/4" set "image_format=%%03d.jpg" set (...)

Newest 'libx264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/libx264

• 22:00
  OpenCV VideoWriter using ffmpeg with "Could not open codec 'libx264'" Error - user2262504 Newest 'libx264' Questions - Stack Overflow
  I am new to OpenCV, and I want write Mat images into video using VideoWriter on Ubuntu 12.04. But when constructing VideoWriter, errors came out. It seems that OpenCV invoke ffmpeg API using default parameters and ffmpeg invoke x264 using its default parameters. Then these setting is broken for libx264. Thus the "Could not open codec 'libx264'" error. Anyone has ideas to solve this problem? More specifically: anyone knows where and how OpenCV invoke ffmpeg API? how to change ffmpeg default settings using code, hopefull, can be (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:04
  Optimizing FFmpeg/x264 Configuration for Ultra-Low Latency UDP Streaming [closed] - pourjour Newest 'ffmpeg' Questions - Stack Overflow
  I'm implementing a real-time screen streaming application using FFmpeg's libraries (libavcodec, libavformat) with H.264 encoding and UDP transport. While I have basic low-latency settings in place, I'm looking to minimize latency as much as possible while maintaining reasonable quality. Here's my current encoder configuration: // Configure codec for low latency codecContext->width = WIDTH; codecContext->height = HEIGHT; codecContext->time_base = AVRational1, FPS; codecContext->framerate = AVRationalFPS, 1; codecContext->pix_fmt = (...)
• 15:23
  FFmpeg live editing - NikxDa Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a video editing tool in HTML/CSS and PHP. For the video editing, I am using ffmpeg. Now, the file upload and the general editing works pretty well, but I have a problem. I would like to preview the final result inside an HTML video-tag. Thus, wenn I upload 4 clips and then select seconds 5 to 10 to be cut out, I'd like to immediately view the result so I can decide whether I want to keep it or not. Does FFmpeg support something like this? If not, what would be the best solution? (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 06:55
  avutil/vulkan_glslang: Fix build failure - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avutil/vulkan_glslang: Fix build failure compile_only isn't available until 13.1.0. Let default initialization set it to zero, so the code works with version before and after 13.1.0. [DH] libavutil/vulkan_glslang.c

16 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 11:25
  swscale/utils: fix sws_getCachedContext check - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale/utils: fix sws_getCachedContext check This logic was inverted, but || was not replaced by &&. Fixes: ed5dd675624c83d9c69b406ce30e4e09f29970e3 Fixes: ticket #11353 Signed-off-by: Niklas Haas <gitⓐhaasn.dev> Sponsored-by: Sovereign Tech Fund [DH] libswscale/utils.c
• 10:51
  configure: add iso_writer golomb dependency - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  configure: add iso_writer golomb dependency since commit fce0622d0b1f69a85fe8ce61e1189dd57a8b0fcc, libavformat/hevc.c depends on golomb vlc tables. [DH] configure
• 02:31
  lavc/aarch64: Fix ff_pred8x8_plane_neon_10 - Bin Peng git.videolan.org Git - ffmpeg.git/rss log
  lavc/aarch64: Fix ff_pred8x8_plane_neon_10 Fix test failure on aarch64: ./tests/checkasm/checkasm --test=h264pred 479612 The mismatch between neon and C functions can also be reproduced using the following bitstream and command line. wget https://streams.videolan.org/ffmpeg/incoming/intra8x8pred_10bit.264 ./ffmpeg -cpuflags 0 -threads 1 -i intra8x8pred_10bit.264 -f framemd5 -y md5_ref ./ffmpeg -threads 1 -i intra8x8pred_10bit.264 -f framemd5 -y md5_neon Signed-off-by: Bin Peng <pengbinⓐvisionular.com> Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] (...)

Revisions : jQuery validator http://github.com/jzaefferer/jquery-validation

• 19:10
  Update stale.yml - bytestream Revisions : jQuery validator
  Update stale.yml

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:12
  How do I get video frame buffer stream from a connected GoPro camera? - cleanrun Newest 'ffmpeg' Questions - Stack Overflow
  I'm creating an app that can connect to a GoPro camera and I want to get the frame buffer stream from the connected GoPro camera and use it on my iOS app (by converting the buffer data into CMSampleBuffer). I'm currently trying to use the FFmpeg library but so far it doesn't work. Here's the logic I've implemented (I'm using ChatGPT to generate the code): import Foundation import CoreMedia import AVFoundation import ffmpegkit final class FFmpegBufferProcessor: AnyBufferProcessor weak var delegate: (...) --
• 12:17
  How to Match ASS Subtitle Font Size with Flutter Text Size for a 1080p Video? - Mostafa Fathi Newest 'ffmpeg' Questions - Stack Overflow
  I’m working on a project where I need to synchronize the font size of ASS subtitles with the text size a user sees in a Flutter application. The goal is to ensure that the text size in a 1080p video matches what the user sees in the app. What I've Tried: Calculating font size using height ratio (PlayResY/DeviceHeight): I used the formula: FontSize_ASS = FontSize_Flutter * (PlayResY / DeviceHeight) While the result seemed logical, the final output in the video was smaller than expected. Adding a scaling (...)
• 10:48
  ffmpeg_kit_flutter_full : Video created from ffmpeg not showing in the web - Đoàn Thanh Thảo Newest 'ffmpeg' Questions - Stack Overflow
  I am implementing a screen capture widget to create a video. The video was successfully created in MP4 format and I can view it in my app and then I posted it to my web. However, on the web, I cannot see the video preview, only when I download the video and view it on my phone can I see it. I think the problem is that there is some missing format that makes the video not playable on Https. Here is my code: final command = '-y -f image2 -i $imagesPath ' '$fps != null ? "-r $fps" : "" ' '-vf "scale=2000:5000" ' // '-vf (...)
• 05:03
  ffmpeg hstack long list of files [closed] - Elle Fiorentino-Lange Newest 'ffmpeg' Questions - Stack Overflow
  I have 1920 images that are 1920x1080 in resolution. I've sliced each image into 1x1080 slices. They are in folders labeled img0001_slices, img0002_slices, ... img1920_slices. In the folders the slices are labeled img0001_slice_0, img0001_slice_1, ... img0001_slice_1919. I want to use ffmpeg to form new images out of the slices. New image one should be the first slice of all the original images lined up horizontally from img1920 on the left to img0001 on the right. New image two should be the second slice of the original images in the same order, new image three should be the third, (...)
• 04:28
  ffmpeg complex concat audio [closed] - s0mbre Newest 'ffmpeg' Questions - Stack Overflow
  I've got one video file (let's say "vid.mp4") and two audio files ("1.aac" and "2.aac") as inputs. I need to replace two parts in the original video's sound track with these two new audios, while retaining the original video track. The first cutout is at timecode from 0.44 to 1.85 sec. The second is from 15.6 sec to end of video. I'm doing it like this: ffmpeg -y -i vid.mp4 -i 1.aac -i 2.aac -filter_complex "[0:a]atrim=end=0.44[a1]; [0:a]atrim=start=1.85:end=15.6; [a1][1:a][a2][2:a]concat=n=4:v=0:a=1[a]" -map 0:v -map "[a]" -c:a aac out.mp4 But (...)
• 02:42
  ffmpeg concat and preserve metadata streams - Andrew Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to concat multiple files that are the result of a GoPro Hero6 splitting movies to avoid the FAT 4GB limit. ffmpeg works great for this purpose but I need the telemetry data that is encoded in the metadata streams, and ffmpeg by default doesn't seem to preserve this. Using the ffprobe command you can see that the source videos have: Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 36 kb/s (default) Metadata: creation_time : 2018-07-15T16:16:26.000000Z handler_name : GoPro MET I know from research that this is the stream I need (...)

15 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:56
  lavc/vvc_mc R-V V sad - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc_mc R-V V sad k230 banana_f3 sad_8x16_c: 387.7 ( 1.00x) 394.9 ( 1.00x) sad_8x16_rvv_i32: 109.7 ( 3.53x) 103.5 ( 3.82x) sad_16x8_c: 378.2 ( 1.00x) 384.7 ( 1.00x) sad_16x8_rvv_i32: 82.0 ( 4.61x) 61.7 ( 6.24x) sad_16x16_c: 748.7 ( 1.00x) 759.7 ( 1.00x) sad_16x16_rvv_i32: 128.5 ( 5.83x) 113.7 ( 6.68x) [DH] libavcodec/riscv/vvc/Makefile [DH] libavcodec/riscv/vvc/vvc_sad_rvv.S [DH] libavcodec/riscv/vvc/vvcdsp_init.c
• 15:56
  lavc/hevc: R-V V put_pixels(pow2) - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/hevc: R-V V put_pixels(pow2) k230 banana_f3 put_hevc_pel_pixels4_8_c: 61.6 ( 1.00x) 69.5 ( 1.00x) put_hevc_pel_pixels4_8_rvv_i32: 24.6 ( 2.50x) 28.0 ( 2.48x) put_hevc_pel_pixels8_8_c: 209.8 ( 1.00x) 215.5 ( 1.00x) put_hevc_pel_pixels8_8_rvv_i32: 52.6 ( 3.99x) 38.2 ( 5.64x) put_hevc_pel_pixels16_8_c: 839.4 ( 1.00x) 830.0 ( 1.00x) put_hevc_pel_pixels16_8_rvv_i32: 126.6 ( 6.63x) 90.5 ( 9.17x) put_hevc_pel_pixels32_8_c: 3246.6 ( 1.00x) 3246.7 ( 1.00x) put_hevc_pel_pixels32_8_rvv_i32: 311.6 (10.42x) 257.0 (12.63x) put_hevc_pel_pixels64_8_c: 12894.6 ( 1.00x) 12892.7 ( 1.00x) (...)
• 15:56
  lavc/vvc_mc: R-V V put_pixels - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc_mc: R-V V put_pixels k230 banana_f3 put_chroma_pixels_8_4x4_c: 63.5 ( 1.00x) 59.2 ( 1.00x) put_chroma_pixels_8_4x4_rvv_i32: 26.5 ( 2.39x) 28.0 ( 2.12x) put_chroma_pixels_8_8x8_c: 211.8 ( 1.00x) 215.5 ( 1.00x) put_chroma_pixels_8_8x8_rvv_i32: 54.3 ( 3.90x) 48.8 ( 4.42x) put_chroma_pixels_8_16x16_c: 841.3 ( 1.00x) 830.0 ( 1.00x) put_chroma_pixels_8_16x16_rvv_i32: 137.5 ( 6.12x) 121.8 ( 6.82x) put_chroma_pixels_8_32x32_c: 3248.8 ( 1.00x) 3288.2 ( 1.00x) put_chroma_pixels_8_32x32_rvv_i32: 350.5 ( 9.27x) 288.5 (11.40x) put_chroma_pixels_8_64x64_c: 12998.3 ( 1.00x) 12976.2 ( 1.00x) (...)
• 15:56
  lavc/riscv: Move VVC macro to h26x - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/riscv: Move VVC macro to h26x [DH] libavcodec/riscv/h26x/asm.S [DH] libavcodec/riscv/vvc/vvc_mc_rvv.S
• 15:56
  lavc/vvc_mc: R-V V dmvr - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc_mc: R-V V dmvr k230 banana_f3 dmvr_8_12x20_c: 619.3 ( 1.00x) 624.1 ( 1.00x) dmvr_8_12x20_rvv_i32: 128.6 ( 4.82x) 103.4 ( 6.04x) dmvr_8_20x12_c: 610.0 ( 1.00x) 665.6 ( 1.00x) dmvr_8_20x12_rvv_i32: 137.6 ( 4.44x) 92.9 ( 7.17x) dmvr_8_20x20_c: 1008.0 ( 1.00x) 1082.7 ( 1.00x) dmvr_8_20x20_rvv_i32: 221.1 ( 4.56x) 155.4 ( 6.97x) dmvr_h_8_12x20_c: 2008.0 ( 1.00x) 2009.7 ( 1.00x) dmvr_h_8_12x20_rvv_i32: 239.6 ( 8.38x) 186.7 (10.77x) dmvr_h_8_20x12_c: 1989.5 ( 1.00x) 2009.4 ( 1.00x) dmvr_h_8_20x12_rvv_i32: 230.3 ( 8.64x) 155.4 (12.93x) dmvr_h_8_20x20_c: 3304.1 ( 1.00x) 3342.9 ( 1.00x) (...)
• 15:55
  Update R-V V vvc_mc vset to support more lengths - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  Update R-V V vvc_mc vset to support more lengths [DH] libavcodec/riscv/vvc/vvc_mc_rvv.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 10:21
  how to change ffmpeg time format information? [closed] - Martin Martin Calden Calden Newest 'ffmpeg' Questions - Stack Overflow
  I am using the freezedetect filter and the time format keeps appearing as seconds. that is really bothering me because I need to calculate it to minutes for editing and it takes time. how can I change the default time format to hh:mm:ss ? this is the command I use to detect freezeframe: ffmpeg -i freeze.mp4 -vf "freezedetect=n=-60dB:d=1" -map 0:v:0 -f null - I am not really understand how to change it. and this is the result: [freezedetect ⓐ 0000025e6b92ee80] lavfi.freezedetect.freeze_start: 348.958008 [freezedetect ⓐ 0000025e6b92ee80] (...)
• 22:11
  hls.js unable to maintain seek with live video [only] stream - Rob Newest 'ffmpeg' Questions - Stack Overflow
  I am encoding a live 25 FPS 950x540 H.264 video-only stream using the latest (built from source) FFmpeg, 10 segments in the manifest, each of 5 seconds, and consuming that stream on another machine on my local LAN in [incognito to avoid cache issues] Chrome with the latest hls.js (cdn.jsdelivr.net/npm/hls.jsⓐlatest). The encoded video plays but not reliably; I have two problems: When the stream is running, the hls.js client starts to be unable to sync with the video stream after a few minutes, complaining of being beyond the end of the sync window and, on re-sync, getting empty (...) -- https://github.com/RobMeades/watchdog/blob/83e718390f779a7ef98d2be009784e8be5deaf5f/software/watchdog.cpp#L933
• 06:50
  FFmpegKit in Flutter fails with configuration output on Android - ashvin jadav Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg_kit_flutter in my Flutter app to add a text overlay to a video. However, when I try to execute the FFmpeg command, I get an output similar to this: configuration: --cross-prefix=aarch64-linux-android- --sysroot=/Users/sue/Library/Android/sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/darwin-x86_64/sysroot --prefix=/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/opt/homebrew/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar (...)

14 décembre

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:40
  How to download ffmpeg utilities into Python venv with pip or manual way for torchaudio - Furkan Gözükara Newest 'ffmpeg' Questions - Stack Overflow
  torchaudio requiring avutil and other binary dll files Source : https://pytorch.org/audio/2.3.0/installation.html However they given example only for Anaconda I am not using Anaconda but I am using Python 3.10.11 pip venv I can't find these DLL files anywhere How can I find and install them into Python venv? Since I can't find, I am getting below error Traceback (most recent call last): File "R:\\MMAudio_v1\\MMAudio\\venv\\lib\\site-packages\\gradio\\queueing.py", line 625, in process_events response = await route_utils.call_process_api(  (...) -- https://pytorch.org/audio/2.3.0/installation.html
• 15:08
  Getting time codes in video files easier - Arete Newest 'ffmpeg' Questions - Stack Overflow
  I am going through some videos to trim them (extracting parts of the video). I know there is billions of software out there that can trim videos easily, but I haven't found any that does not recode the result. My method right now is to open the video in MPC-BE -> play -> pause -> note down the time -> resume to find a place end the clip -> pause -> note down the end time for the clip. Then I take the time codes and use ffmpeg to extract the part. Usually with something like: ffmpeg -i input.mp4 -ss 01:50:00 -to 01:55:00 -c:v copy -c:a copy output.mp4 My (...) -- TMPGEnc MPEG Smart Renderer 6
• 22:41
  FFMPEG audio 0.1ms stutter but video is smooth [closed] - c0de b0unty Newest 'ffmpeg' Questions - Stack Overflow
  I have videos in a folder unprocessed and i'm also using inotifywait to check the folder for new sub folders for videos and process them automatically.... Problem i have is with ffmpeg and stuttering audio in segments while video is smooth. I notice it's just a small stutter like gibberish for 0.1ms in random segments but no desync. It's annoying to have this small stutter. Also source MP4 file has smooth audio and video. I have 100K+ Videos pending HLS processing and files have different dimensions i added the checks for it in the script but ffmpeg keeps (...)
• 19:21
  FFmpeg/Next.js15 How to serve converted MKV stream to MP4 stream - user28760545 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to serve a video stream using Next.js 15, and using FFmpeg to convert the video stream from MKV to MP4 so it can display on a majority of web browsers. I seem to be able to convert it successfully returning a 200 status code but nothing seems to pop up. Perhaps I am serving the converted chunks wrongly. /app/api/stream/route.ts import spawn from "child_process"; export async function GET(request) const mkvStream = getMKVStream(); const ffmpeg = spawn("ffmpeg", [ "-i", "pipe:0", "-f", "mp4", "-movflags", (...)
• 18:33
  Unexpectedly bad quality metrics of VVC encoded video [closed] - Wieprzek Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project where I'm comparing a number of codecs via SSIM, PSNR and VMAF. Im getting really bad results for VVC (libvvenc) (0.23 ssim, 9.46 VMAF), even though the output doesn't look that bad. My scores for other codecs with default settings are around 0.88-0.96 SSIM and around 90 VMAF. As my input I use raw videos from xiph.org I first encode it: ffmpeg -i city_cif.y4m -c:v libvvenc city_cif_libvvenc.mp4 then I decode it back to raw, although I have to set output format to .yuv since y4m doesnt support the only pixel format libvvenc (...) -- xiph.org
• 02:20
  ffmpeg command to create thumbnail sprites - FI-Info Newest 'ffmpeg' Questions - Stack Overflow
  To output a single frame from ffmpeg I can do: ffmpeg -i input.flv -ss 00:00:14.435 -vframes 1 out.png And to output an image every second, I can do: ffmpeg -i input.flv -vf fps=1 out%d.png Would there be a way to create a thumbnail sprite from these outputs to help with the creation of a vtt file for thumbs on seek position?

13 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:19
  lavc/aarch64: Fix ff_pred16x16_plane_neon_10 - Bin Peng git.videolan.org Git - ffmpeg.git/rss log
  lavc/aarch64: Fix ff_pred16x16_plane_neon_10 Fix test failure on aarch64: ./tests/checkasm/checkasm --test=h264pred 367840 Signed-off-by: Peng Bin <pengbinⓐvisionular.com> Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/aarch64/h264pred_neon.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:23
  Why is MoviePy taking hours to generate a few minutes of video, and are there faster alternatives? [closed] - Michael Ohana Newest 'ffmpeg' Questions - Stack Overflow
  I’m working on a project that involves creating personalized courses and exploring automated video generation. Currently, I’m using MoviePy to generate videos, but I’m encountering significant performance issues—generating just a few minutes of video with basic text overlays and audio integration is taking hours. Are there ways to optimize MoviePy for faster performance? Are there better tools, frameworks, or APIs (e.g., FFmpeg or others) for similar tasks? Any guidance, recommendations, or examples of implementations would be greatly (...)
• 13:49
  How to Turn image A + audio + A into Video A with the exact same attributes of Video B so both can be concatenated without encoding [closed] - Furkan Gözükara Newest 'ffmpeg' Questions - Stack Overflow
  I have image A and it is PNG I have audio A and it is MP3 I have video B that can be any format, resolution, encoding, audio, etc Now I want to turn image A + audio A into video A with the exact attributes of video B so that I can concatenate them without encoding Here my so far code which is failing. I am using Python and latest version of FFMPEG with most codecs and features def get_video_info(video_path): cmd = [ FFPROBE_PATH, '-v', 'quiet', '-print_format', 'json',  (...)
• 03:41
  Integrating FFMpeg in Native Android Application with C++ results in bunch of errors [closed] - BraveEvidence Newest 'ffmpeg' Questions - Stack Overflow
  I need to integrate ffmpeg in my android app, i don't want to usee ffmpegkit as that is not properly maintained, i cloned ffmpeg-android-maker and then ran ./ffmpeg-android-maker.sh it created build folder and output folder, The output folder looks like this I have created a kotlin android project using android studio, so i have written all the code to pick the video and i have the video uri with me in kotlin, i also added a C++ module with help of Android studio and it did all the configuration in build.gradle and also created CMake file for me. For now (...) -- ffmpeg-android-maker, , Here
• 14:00
  Laravel in how we can upload large size video with Repeater data with multi language - Darshan Malani Newest 'ffmpeg' Questions - Stack Overflow
  In the Laravel how we can upload large size data with multiple language video as well once video upload i need it on chunk how we can do ? Here is DB structure once specific program upload chunk data i need something like this way with multiple lang based data -- ,
• 09:22
  ffmpeg gdigrab support prebuilt library - Haris Newest 'ffmpeg' Questions - Stack Overflow
  I am using this build for Windows 64 with MSVC compiler, I need to capture screen using C++ code using gdigrab, but I can see: Error: Input format not found: gdigrab So just checked using the code for gdigrab: const AVInputFormat *fmt = nullptr; void *opaque = nullptr; while ((fmt = av_demuxer_iterate(&opaque))) qDebug() << fmt->name; But does not print gdigrab Then I check the build config for ffmpeg using .\\ffmpeg.exe -buildconf Which do not include --enable-gdigrab But when I check the (...) -- build, https://github.com/BtbN/FFmpeg-Builds/issues/428

12 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:37
  amfenc: Update the min version to 1.4.35.0 for AMF SDK. - Dmitrii Ovchinnikov git.videolan.org Git - ffmpeg.git/rss log
  amfenc: Update the min version to 1.4.35.0 for AMF SDK. [DH] configure
• 15:04
  compat/w32pthreads: change pthread_t into pointer to malloced struct - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  compat/w32pthreads: change pthread_t into pointer to malloced struct pthread_t is currently defined as a struct, which gets placed into caller's memory and filled by pthread_create() (which accepts a pthread_t*). The problem with this approach is that pthread_join() accepts pthread_t itself rather than a pointer to it, so it gets a _copy_ of this structure. This causes non-deterministic failures of pthread_join() to produce the correct return value - depending on whether the thread already finished before pthread_join() is called (and thus the copy contains the correct value), or not (...)
• 02:34
  avformat/iamf_parse: fix setting duration for the last subblock in a parameter definition - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamf_parse: fix setting duration for the last subblock in a parameter definition When subblock durations are constant, the last block may be smaller and the value needs to be calculated. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/iamf_parse.c [DH] libavformat/iamf_reader.c
• 02:27
  avformat/iamf_parse: add checks to parameter definition durations - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamf_parse: add checks to parameter definition durations Section 3.6.1 of the IAMF spec states "When constant_subblock_duration is equal to 0, the summation of all subblock_duration in this parameter block SHALL be equal to duration.". Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/iamf_parse.c [DH] libavformat/iamf_reader.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:19
  Compiling ffmpeg with alpha channel support in libx265 [closed] - AnB Newest 'ffmpeg' Questions - Stack Overflow
  I need to encode a transparent video in the H.265/HEVC format. Recently, the x265 software encoder library used by ffmpeg has added support for the alpha channel (docs). I compiled ffmpeg as per the instructions from here with the required ENABLE_ALPHA option set during build of libx265. However, when I execute ffmpeg -h encoder=libx265, there are no supported pixel formats with the alpha channel: Encoder libx265 [libx265 H.265 / HEVC]: General capabilities: dr1 delay threads Threading capabilities: other Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p (...) -- docs, here

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:27
  fate: Add a dependency on ffprobe for fate-flcl1905 - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log
  fate: Add a dependency on ffprobe for fate-flcl1905 This fixes occasional failed tests, if doing "make fate" without a regular "make" or "make all" inbetween. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/fate/audio.mak

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:00
  Automate removing segments of a video using ffmpeg-python - Hriday NS Newest 'ffmpeg' Questions - Stack Overflow
  I'm very new to ffmpeg and unable to wrap my head around the concepts entirely. My goal for this little script I've been working on all day is to: Step 1: Read a list of timestamps from a text file like so: 00:00 - 00:14 00:30 - 00:45 So that works: for me: def read_timestamps(file_path): timestamps = [] with open(file_path, 'r') as f: for line in f.readlines(): match = re.match(r'(\\d1,2):(\\d2) - (\\d1,2):(\\d2)', line.strip()) if match: start = int(match.group(1)) * 60 + int(match.group(2)) # (...)

11 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:30
  avformat/iamf_writer: fix setting num_samples_per_frame for OPUS - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamf_writer: fix setting num_samples_per_frame for OPUS As per section 3.11.1 of the IAMF spec, the sample rate used in Codec Config for Opus shall be 48kHz, regardless of the original sample rate used during encoding. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/iamf_writer.c
• 15:49
  avcodec/amfenc: B-Frame support for av1_amf encoder. - Dmitrii Ovchinnikov git.videolan.org Git - ffmpeg.git/rss log
  avcodec/amfenc: B-Frame support for av1_amf encoder. [DH] libavcodec/amfenc_av1.c
• 08:14
  swscale/slice: fix init of 32 bpc planes - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale/slice: fix init of 32 bpc planes In input.c and output.c and many other places, swscale follows the rule of using 15-bit intermediate if output bpc is <= 8, and 19-bit (inside int32_t) intermediate otherwise. See e.g. the comments on hyScale() on swscale_internal.h. These are also the coefficients that yuv2gbrpf32_full_X_c() is using. In contrast to this, the plane init code in slice.c (function fill_ones) is assuming that we use 35-bit intermediates (inside 64-bit integers) for this case, seemingly added by commit b4967fc71c63eae8cd96f9c46cd3e1fbd705bbf9 with no further (...)
• 10:02
  fftools/thread_queue: switch from AVFifo+ObjPool to AVContainerFifo - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  fftools/thread_queue: switch from AVFifo+ObjPool to AVContainerFifo The queue needs to track each frame/packet's stream index, this is achieved by maintaining a parallel AVFifo instance for that purpose. This is simpler than implementing custom AVContainerFifo callbacks. [DH] fftools/ffmpeg_sched.c [DH] fftools/ffmpeg_utils.h [DH] fftools/thread_queue.c [DH] fftools/thread_queue.h
• 06:57
  lavc/packet: add API for an AVPacket-based AVContainerFifo - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  lavc/packet: add API for an AVPacket-based AVContainerFifo [DH] doc/APIchanges [DH] libavcodec/packet.c [DH] libavcodec/packet.h [DH] libavcodec/version.h
• 13:27
  fftools/sync_queue: switch from AVFifo+ObjPool to AVContainerFifo - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  fftools/sync_queue: switch from AVFifo+ObjPool to AVContainerFifo Remove now-unused objpool. [DH] fftools/Makefile [DH] fftools/objpool.c [DH] fftools/objpool.h [DH] fftools/sync_queue.c
• 00:04
  avformat/mov: don't reallocate extradata when converting dvdsub palette - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: don't reallocate extradata when converting dvdsub palette After introduction of ff_dvdclut_palette_extradata_cat() to convert DVD subtitle palettes from YUV to RGB, a leak is introduced because of the call to ff_alloc_extradata(). This is not necessary, instead we should free the extradata because ff_bprint_to_codecpar_extradata() will finalize the bprint'ed string to the codecpar and set the length. Fixes leak introduced in 3b0e6c0eccd7d61eb089370fc5f2196c2b30336f. Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:08
  FFMPEG vsync drop and regeneration - Lhh92 Newest 'ffmpeg' Questions - Stack Overflow
  According to the ffmpeg documentation vsync parameter Video sync method. For compatibility reasons old values can be specified as numbers. Newly added values will have to be specified as strings always. drop As passthrough but destroys all timestamps, making the muxer generate fresh timestamps based on frame-rate. It appears that the mpegts mux does not regenerate the timestamps correctly (PTS/DTS); however, piping the output after vsync drop to a second process as raw h264 does force mpegts to regenerate the PTS. Generate test (...)
• 07:39
  Adjust the audio balance dynamically in FFmpeg for a specific time range [closed] - Lipa Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a video editing task using FFmpeg and want to adjust the audio balance dynamically for a specific time range within a video. For example, I want to change the volume of the left audio channel to 50% and the right audio channel to 125% between 7 and 9 seconds of the clip. After this time range, the audio should return to its original balance. I already tried using the pan filter: ffmpeg -i input.mp4 -af "pan=stereo|c0='if(between(t,7,9),0.5,1)*c0|c1='if(between(t,7,9),1.25,1)*c1'" output.mp4 However, it seems pan doesn't (...)
• 13:45
  Hit noise when playing part of wave file with ALSA PCM interface - wangt13 Newest 'ffmpeg' Questions - Stack Overflow
  I am working a WAVE file playing with ALSA PCM interface in Linux, and I heard noise when I played the file quickly and partially. Here is my playing function. static int playback_function(uint8_t *pcm_buf, int pcm_frames) int rc; uint8_t *buf; int frame_size, sent; int periodsize; int left; frame_size = chan * av_get_bytes_per_sample(AV_SAMPLE_FMT_S16); periodsize = sys_periodsize; // 320 in my system buf = pcm_buf; left = pcm_frames; sent = 0; while (left > 0) sent = (left > periodsize) ? periodsize : (...)
• 12:35
  Is there any Android lib that can be used to split mp4 files in the GOP dimension? - Chaojie Mo Newest 'ffmpeg' Questions - Stack Overflow
  An mp4 file consists of meta information and a set of GOPs. Now i want to split mp4 files in the GOP dimension and then every GOP with meta information is recombined into a new file. Is there any feasible solution?

10 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 22:39
  avformat/riff: map 0069 twocc to ADPCM IMA XBOX decoder - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avformat/riff: map 0069 twocc to ADPCM IMA XBOX decoder [DH] libavformat/riff.c [DH] tests/ref/fate/xmv-demux

Piwik http://piwik.org/

• 00:55
  Six Best Amplitude Alternatives - Daniel Crough Piwik
  Product analytics is big business. Gone are the days when we could only guess what customers were doing with our products or services. Now, we can track, visualise, and analyse how they interact with them and, with that, constantly improve and optimise. The problem is that many product analytics tools are expensive and complicated — especially for smaller businesses. They’re also packed with functionality more attuned to the needs of massive companies. Amplitude is such a tool. It’s brilliant and it has all the bells and whistles that you’ll probably never need. Fortunately, there are (...) -- terms and conditions, data processing agreement (DPA)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 17:07
  avformat/iamfdec: don't set individual streams as dependent - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamfdec: don't set individual streams as dependent Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/iamfdec.c
• 13:57
  fate/iamf: add a test for expanded layouts - James Almer git.videolan.org Git - ffmpeg.git/rss log
  fate/iamf: add a test for expanded layouts Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] tests/fate/iamf.mak [DH] tests/filtergraphs/iamf_9_1_6 [DH] tests/ref/fate/iamf-9_1_6 [DH] tests/streamgroups/audio_element-9_1_6 [DH] tests/streamgroups/audio_element-9_1_6-stereo [DH] tests/streamgroups/mix_presentation-9_1_6
• 13:56
  avformat/iamf_writer: add support for expanded channel layouts - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamf_writer: add support for expanded channel layouts Defined in Immersive Audio Model and Formats 1.1.0, sections 3.6.2 and 3.7.3 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/iamf_writer.c
• 13:01
  avformat/iamf_parse: add support for expanded channel layouts - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamf_parse: add support for expanded channel layouts Defined in Immersive Audio Model and Formats 1.1.0, sections 3.6.2 and 3.7.3 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/iamf.c [DH] libavformat/iamf.h [DH] libavformat/iamf_parse.c
• 13:00
  avutil/channel_layout: simplify the 22.2 layout definition - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avutil/channel_layout: simplify the 22.2 layout definition Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/channel_layout.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 14:33
  FFmpeg H.264 NVENC - high444p profile not working at 1920x1080 via library but works via command line encoding - Vivek Nathani Newest 'ffmpeg' Questions - Stack Overflow
  I am building a real-time desktop streaming application in Rust and I am using FFmpeg (H.264 NVENC) to encode the raw frames captured as BGRA from desktop. I am able to get it to work on profiles such as baseline, main, and high but nothing seems to be working on high444p which is what I need to do 4:4:4 chroma subsampling. Below is the setup I have for constructing the encoder. I am using the rust-ac-ffmpeg crate to do this. builder = builder .pixel_format("bgra") .height(1080) .width(1920) .set_option("profile", "high444p") .set_option("preset", (...) -- rust-ac-ffmpeg

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 04:19
  aarch64/vvc: Use faster clip operation - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  aarch64/vvc: Use faster clip operation Replace sqxtn+smin+smax by sqxtun+umin. [DH] libavcodec/aarch64/vvc/inter.S
• 04:18
  aarch64/vvc: Fix clip in alf - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  aarch64/vvc: Fix clip in alf Fix test failure: ./tests/checkasm/checkasm --test=vvc_alf 3607569773 [DH] libavcodec/aarch64/vvc/alf.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 04:46
  How two receive two video streams and output as a single video stream, using ffmpeg and in multicast? [closed] - Shodan Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to stream two UDP video stream to LAN multicast Have one computer receive these multicast streams, combine them side by side and re-transmit them as a single stream For testing purposes I stream two test files as follows ffmpeg -re -i testfile1.mp4 -c copy -f mpegts udp://239.0.0.1:9991 ffmpeg -re -i testfile2.mp4 -c copy -f mpegts udp://239.0.0.1:9992 On another computer, I can watch either of these stream while they are outputting using this test command ffplay -hide_banner -fflags nobuffer -flags low_delay -probesize 32 -analyzeduration (...) -- https://youtu.be/DDxBpH_jSQs
• 07:09
  How to run FFmpeg command in Java (Windows) - SAI GIRI CHARY AOUSULA Newest 'ffmpeg' Questions - Stack Overflow
  I executed the below FFmpeg terminal command in command prompt successfully. But I am unable to execute this command in my Java program. I can execute all other FFmpeg commands which doesn't have double quotation marks in my Java program. Here I have problem only with double quotation marks("..."). ffmpeg -i "concat:C:\\\\journalism\\\\videos\\\\vid1.ts|C:\\\\journalism\\\\videos\\\\vid2.ts" -c copy C:\\\\journalism\\\\videos\\\\output.mp4 I can execute above in command prompt successfully. But I tried as below in my Java code: Runtime.getRuntime().exec("C:\\\\ffmpeg\\\\bin\\\\ffmpeg -i (...)
• 00:34
  Stream sent via FFMPEG (NodeJS) to RTMP (YouTube) not being received - Qumber Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a very basic chrome extension that captures and sends video stream to a nodeJS server, which in turns sends it to Youtube live server. Here is my implementation of the backend which receives data via WebRTC and send to YT using FFMPEG: const express = require('express'); const cors = require('cors'); const RTCPeerConnection, RTCSessionDescription = require('ⓐroamhq/wrtc'); const spawn = require('child_process'); const app = (...)
• 00:02
  avformat_write_header return error code when trying to write video with G711U audio avi file - denn Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to make an avi file from a video/audio stream. When audio is AAC it works fine. But I cannot pack G711U audio. av_register_all(); avcodec_register_all(); av_log_set_callback(nullptr); av_format_context_ = avformat_alloc_context(); if (!av_format_context_) std::string error_msg = "Failed to allocate avformat context"; log_->Error(error_msg); throw std::runtime_error(error_msg.c_str()); av_format_context_->oformat = av_guess_format("mp4", filename.c_str(), NULL); strcpy(av_format_context_->filename, (...)

9 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:20
  avutil/file: fix av_file_map file mapping on Windows - Kacper Michajłow git.videolan.org Git - ffmpeg.git/rss log
  avutil/file: fix av_file_map file mapping on Windows This makes the behavior of av_file_map() the same on Windows as it is on other platforms. The file is opened as read-only, but the mapping is copy-on-write, allowing the user to write to the memory pages returned by av_file_map(). This commit fixes libavutil\\tests\\file.c test, which would crash when trying to write to a read-only memory page. Signed-off-by: Kacper Michajłow <kasper93ⓐgmail.com> Signed-off-by: Anton Khirnov <antonⓐkhirnov.net> [DH] (...)
• 12:23
  checkasm: vvc: Use checkasm_check for printing failing output - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log
  checkasm: vvc: Use checkasm_check for printing failing output Share the checkasm_check_pixel macro from hevc_pel in checkasm.h, to allow other tests to use the same. (To use it in other tests, those tests need to have a similar setup for high bitdepth pixels, with a local variable named "bit_depth".) This simplifies the code for checking the output, and can print the failing output (including a map of matching/mismatching elements) if checkasm is run with the -v/--verbose option. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/checkasm.h [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:55
  FFMPEG How to zoom in on video [closed] - Map Jiawu Newest 'ffmpeg' Questions - Stack Overflow
  I'm doing a zoom out of a video like this : ffmpeg -i "input.mp4" -vf "fps=60,scale=8000:-1,zoompan=z='pzoom+0.0002':x=iw/2-(iw/zoom/2):y=ih/2-(ih/zoom/2):d=1:s=1920x1080:fps=60" -t 5 -c:v libx264 -pix_fmt yuv420p "output.mp4" now How I do the oposite? Start from the max zoom position and go to the original video zoom? Thanks!
• 21:03
  Issues with Video Recording Duration and Smooth Playback when Using v4l2 framework to MP4 (FFmpeg) - Reena Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to record a video from a USB device with v4l2 framework and save it in MP4 format using FFmpeg. My sample code successfully captures and saves the video, but I'm running into some issues: The recorded video duration is shorter than expected. For instance: When recording a 1-minute video at 1280x720, the output file only has 58 or 59 seconds. For 1920x1080, the duration is even more off — only about 28 or 30 seconds, instead of the expected 1 minute. Additionally, the video is not smooth. There are noticeable drops in frames and playback inconsistencies.  (...)
• 14:38
  libopenmpt ⓐ 0000024ec3fc9400c Format libopenmpt detected only with low score of 1, misdetection possible [closed] - cao ting Newest 'ffmpeg' Questions - Stack Overflow
  When I want to use ffmpeg to convert xm file to mp3, I get the error message below: ['ffmpeg', '-i', 'E:\\\\dodo\\\\test.xm', 'E:\\\\dodo\\\\test.mp3'] ffmpeg version N-110138-gb4eca5cce2-20230402 Copyright (c) 2000-2023 the FFmpeg developers built with gcc 12.2.0 (crosstool-NG 1.25.0.152_89671bf) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads (...)
• 20:09
  How to automate ffmpeg to split and merge parts of video, and keep the audio in sync? - Tree Newest 'ffmpeg' Questions - Stack Overflow
  I have a Python script that automates trimming a large video (2 hours) into smaller segments and then concatenating them without re-encoding, to keep the process fast. The script runs these ffmpeg commands: import subprocess # Extract chunks segments = [(0, 300), (300, 600), (600, 900)] # example segments in seconds for i, (start, length) in enumerate(segments): subprocess.run([ "ffmpeg", "-i", "input.mp4", "-ss", str(start), "-t", str(length), "-c", "copy", "-reset_timestamps", "1", "-y", f"chunk_i.mp4" ], check=True) # Create concat (...)
• 19:52
  Issues with Video Recording Duration and Smooth Playback when Using v4l2 to MP4 (FFmpeg) - Reena Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to record a video from a USB device with v4l2 framework and save it in MP4 format using FFmpeg. My sample code successfully captures and saves the video, but I'm running into some issues: The recorded video duration is shorter than expected. For instance: When recording a 1-minute video at 1280x720, the output file only has 58 or 59 seconds. For 1920x1080, the duration is even more off — only about 28 or 30 seconds, instead of the expected 1 minute. Additionally, the video is not smooth. There are noticeable drops in frames and playback (...)
• 09:25
  What does `-map data-re` option in FFMPEG do? - zardosht Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to extract and parse KLV data from a video stream. I found the following example in a Github repository. I am wondering what does the mapping option data-re do? $ ffmpeg -i Day\\ Flight.mpg -map data-re -codec copy -f data - I understand the rest of the command, and know that -map is used to choose streams from inputs. But what does data-re mean. I couldn't find any explanation for it (or similar mapping option or stream identifier) in the documentation, e.g. here and (...) -- Github repository, here, here
• 10:15
  avcodec_decode_audio4 was deprecated, how can i Decode the audio frame of size avpkt->size from avpkt->data into frame - just like before Newest 'ffmpeg' Questions - Stack Overflow
  avcodec_decode_audio4 was deprecated, how can i Decode the audio frame of size avpkt->size from avpkt->data into frame. I am now migrating ffmpeg from v2.5 to 4.1 in my project.

8 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 23:27
  fftools/ffprobe: add analyze_frames option for CC and grain detection - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  fftools/ffprobe: add analyze_frames option for CC and grain detection Currently, ffprobe has two stream-level fields that do not work, closed_captions and film_grain). Their value is always 0 because ffprobe cannot access the internal codec properties when it is setting up its stream contexts. In this commit, add the new option -analyze_frames to ffprobe, allowing the user to read frames up to the interval they have defined and fill these fields based on what is exposed in AVPacketSideData. Additionally, in the same commit, don't write these fields to the output unless analyze_frames (...)
• 22:09
  avformat/hevc: also print NALU ids - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/hevc: also print NALU ids Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/hevc.c
• 22:06
  avformat/hevc: add a log context to ff_isom_write_hvcc,lhvc - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/hevc: add a log context to ff_isom_write_hvcc,lhvc Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/flvenc.c [DH] libavformat/hevc.c [DH] libavformat/hevc.h [DH] libavformat/matroskaenc.c [DH] libavformat/movenc.c [DH] libavformat/sdp.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:15
  Audio out of sync after merging video chunks extracted with ffmpeg using -c copy and -reset_timestamps 1 [closed] - Tree Newest 'ffmpeg' Questions - Stack Overflow
  I’m splitting a long video (around 2 hours) into smaller chunks using ffmpeg commands like: ffmpeg -i input.mp4 -ss START_SECOND -t LENGTH -c copy -reset_timestamps 1 -y chunk_X.mp4 Then, I’m concatenating the resulting chunks using a concat list file: ffmpeg -f concat -safe 0 -i list.txt -c copy -y merged_output.mp4 So the chunks always come from the same file, and have the same codec/size/bitrate. My goal is to avoid re-encoding the entire video to keep the process fast. However, I’m noticing that after the final merge, the audio in some parts of the merged (...)
• 20:07
  react electron importing 'execa' Error: Can't resolve 'child_process' - Martin Newest 'ffmpeg' Questions - Stack Overflow
  I have been dealing with this issue for a while, trying different stackoverflow solutions, AI advice, multiple re-writes, and I am still very puzzles by it. I have a react electron app, which works fine, but if I try to import the 'execa' module: import execa from 'execa'; I always get these error messages: [0] Failed to compile. [0] [0] Module not found: Error: Can't resolve 'child_process' in '/home/martin/Documents/projects/electron-ghactions/node_modules/cross-spawn' [0] ERROR in (...) -- https://github.com/MartinBarker/electron-ghactions/blob/e76d643302cdc8601c11877eff8b43f2d5977c65/src/Ffmpeg.js#L3, https://github.com/MartinBarker/RenderTune/blob/59450b3f8445731e419c99335e7ebf7dbca6cbdf/src/FFmpeg.js#L4C1-L4C39
• 17:47
  How to scroll and zoom an image at the same in ffmpeg? - neeebzz Newest 'ffmpeg' Questions - Stack Overflow
  I have an image of the height 1200px. I want to create a video from this single image. My final video will be height 450px. At 0seconds I want to show a 2xZoomed version of the image. Then it in 2 seconds it should zoom out to it's original width. And then it start scrolling to the bottom and then at the end it starts scrolling back. This should be on loop until the end of the video. Also I am want the this whole image to be faded to 50% since I will overlay another video on top of it. I am trying to use the zoompan filter but it seems to be not working. (...)
• 15:38
  Use Java FFmpeg wrapper, or simply use Java runtime to execute FFmpeg? - Beier Newest 'ffmpeg' Questions - Stack Overflow
  I'm pretty new to Java, and need to write a program that listens to video conversion instructions and convert the video once a new instruction arrives (instructions are stored in Amazon SQS, but it's irrelevant to my question). I'm facing a choice, either use Java runtime to exec FFmpeg conversion (like from command line), or I can use an FFmpeg wrapper written in Java. http://fmj-sf.net/ffmpeg-java/getting_started.php I'd much prefer using Java runtime to exec FFmpeg directly, and avoid using java-ffmpeg wrapper as I have to learn the library. So (...) -- http://fmj-sf.net/ffmpeg-java/getting_started.php
• 15:26
  Which decoder does ffmpeg actually use? [closed] - LTR Newest 'ffmpeg' Questions - Stack Overflow
  How can I get ffmpeg to show exactly which decoder it uses? Example 1 In this example, I request Intel QuickSync decoding. However, QuickSync is not available because it's running on an AMD CPU. ffmpeg seems to fall back to CPU decoding, but doesn't say anything about that: > ffmpeg -hwaccel qsv -i "file.mp4" -f null - ... (nothing in the output refers to choice of decoder) Example 2 In this example, we request "auto" hardware acceleration. > ffmpeg -hwaccel auto -i "file.mp4" -f null - ... [h264 ⓐ 000001ed37d7a040] Using auto (...)
• 01:17
  ffmpeg piped output producing incorrect metadata frame count - Xorgon Newest 'ffmpeg' Questions - Stack Overflow
  The short version: Using piped output from ffmpeg produces a file with incorrect metadata. ffmpeg -y -i .\\test_mp4.mp4 -f avi -c:v libx264 - > output.avi to make an AVI file using the pipe output. ffprobe -v error -count_frames -show_entries stream=duration,nb_read_frames,r_frame_rate .\\output.avi The output will show that the metadata does not match the actual frames contained in the video. Details below. Using Python, I am attempting to use ffmpeg to compress videos and put them in a PowerPoint. This works great, however, the video files themselves have (...) -- here

7 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:17
  avformat/hevc: add support for writing alpha layer - Timo Rothenpieler git.videolan.org Git - ffmpeg.git/rss log
  avformat/hevc: add support for writing alpha layer [DH] libavformat/hevc.c [DH] libavformat/version.h
• 13:51
  avutil/tests/color_utils: reduce accuracy threshold to pass to 1e-7 - Hendrik Leppkes git.videolan.org Git - ffmpeg.git/rss log
  avutil/tests/color_utils: reduce accuracy threshold to pass to 1e-7 Fixes FATE on a variety of configurations due to accuracy problems in floating point math. Most constants tested against here are not even specified with 7 decimal digits. Reviewed-by: Niklas Haas <gitⓐhaasn.dev> [DH] libavutil/tests/color_utils.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 01:38
  Restart environment and script during batch script - ninbura Newest 'ffmpeg' Questions - Stack Overflow
  I've built a few FFmpeg powershell scripts for me and a few others to use and I'm attempting to make the setup and update process as easy as possible. The end goal is to be able to run 1 batch file that installs Chocolatey, FFmpeg, git, clones the github repo (for updates), and edits the Windows registry to add the actual FFmpeg powershell scripts / console programs to the Windows Explorer contextual menu. This way I just pass them the folder containing everything once and any time I change or add something to the project I can just tell them to run the batch file again, and (...)

6 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 06:13
  avformat/iff: SndAnim decoding - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avformat/iff: SndAnim decoding Fixes ticket #5553. [DH] libavformat/iff.c
• 20:23
  avfilter/af_ashowinfo: fix scaling factor of replaygain peak values - Kacper Michajłow git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_ashowinfo: fix scaling factor of replaygain peak values Commit 8542f9c4f17125d483c40c0c5723842f1c982f81 changed replaygain peak values to use 100k instead of UINT32_MAX as peak, with possibility of overflow. af_ashowinfo was never updated to reflect this, so we update it now. Fixes: 8542f9c4f17125d483c40c0c5723842f1c982f81 Signed-off-by: Kacper Michajłow <kasper93ⓐgmail.com> [DH] libavfilter/af_ashowinfo.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:16
  How to combine The video and audio files in ffmpeg-python - Isaac Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to combine a video(with no sound) and its separate audio file I've tried ffmpeg ffmpeg -i video.mp4 -i audio.mp4 -c copy output.mp4 and it works fine. i'm trying to achieve the same output from ffmpeg-python but with no luck. Any help on how to do this?
• 23:49
  ffmpeg piped output producing incorrect metadata frame count with Python - Xorgon Newest 'ffmpeg' Questions - Stack Overflow
  Using Python, I am attempting to use ffmpeg to compress videos and put them in a PowerPoint. This works great, however, the video files themselves have incorrect frame counts which can cause issues when I read from those videos in other code. Edit for clarification: by "frame count" I mean the metadata frame count. The actual number of frames contained in the video is correct, but querying the metadata gives an incorrect frame count. Having eliminated the PowerPoint aspect of the code, I've narrowed this down to the following minimal reproducing example of saving an output (...) -- here
• 16:52
  Streaming mp3 using node http to Icecast server gives no output - Roboroads Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream a custom mp3 datastream to Icecast2. Icecast recognises there's a mountpoint, however the streamed data won't play and I have no idea why. import ffmpeg from 'fluent-ffmpeg'; import request from 'node:http'; const req = request( host: 'localhost', port: 8000, path: '/radio', method: 'PUT', auth: 'source:password', headers: 'Content-Type': 'audio/mpeg', Expect: '100-continue',  (...)
• 11:13
  "No accelerated colorspace conversion found from yuv420p to bgr24" when using OpenCV with FFMPEG on mac - Itay k Newest 'ffmpeg' Questions - Stack Overflow
  When trying to acquire a frame from a video file (I've tried several video formats) I am getting an error message "No accelerated colorspace conversion found from yuv420p to bgr24". The exact same code ran perfectly fine on a windows machine and I couldn't get it to run on a mac even after I recompiled and installed FFMPEG and OpenCV. I am using lion for my OS. Any ideas?

5 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:57
  avcodec/libx265: add alpha layer encoding support - Timo Rothenpieler git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libx265: add alpha layer encoding support [DH] Changelog [DH] libavcodec/libx265.c [DH] libavcodec/version.h
• 09:52
  lavc: improve AVCodecContext.extradata/subtitle_header documentation - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  lavc: improve AVCodecContext.extradata/subtitle_header documentation Mention they are always owned and freed by the codec, except when using deprecated avcodec_close(). Reported-By: DEATH on IRC [DH] libavcodec/avcodec.h
• 00:21
  configure: add leaddec blockdsp dependency - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  configure: add leaddec blockdsp dependency [DH] configure
• 13:41
  checkasm/rv40dsp: cover more cases - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  checkasm/rv40dsp: cover more cases Co-Authored-By: Ronald S. Bultje <rsbultjeⓐgmail.com> Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] tests/checkasm/rv40dsp.c
• 13:41
  lavc/rv40dsp: fix RISC-V chroma_mc - sunyuechi git.videolan.org Git - ffmpeg.git/rss log
  lavc/rv40dsp: fix RISC-V chroma_mc Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] libavcodec/riscv/rv40dsp_rvv.S
• 06:39
  avcodec/jpeg2000: Fix undefined behaviour in left shift operations - Osamu Watanabe git.videolan.org Git - ffmpeg.git/rss log
  avcodec/jpeg2000: Fix undefined behaviour in left shift operations Signed-off-by: Pierre-Anthony Lemieux <palⓐpalemieux.com> [DH] libavcodec/jpeg2000dec.c [DH] libavcodec/jpeg2000htdec.c [DH] libavcodec/tests/jpeg2000dwt.c
• 04:19
  avformat/movenc: log stream index for invalid pkt duration - Gyan Doshi git.videolan.org Git - ffmpeg.git/rss log
  avformat/movenc: log stream index for invalid pkt duration [DH] libavformat/movenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:01
  Is there a way of making ffmpeg start with the largest folders first? [closed] - tuqueque Newest 'ffmpeg' Questions - Stack Overflow
  I have the following script (snippet), where I search for all the folders and then pass the result to xargs, where I run ffmpeg in parallel for as many threads as my CPU has (32) to convert the image sequences inside each folder: find . -type d -print0 | xargs -0 -P32 -I ffmpeg... The thing is that there are folders with just 10 images inside and other folders with 150 images... I'd love if ffmpeg started with the largest folders first and then continue in a descending order... not one at a time, but keeping the parallel nature of the script. Is that even possible (...)
• 15:43
  Using ffmpeg to create looping apng - Harry Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create looping apng files from mkvs. My problem is that they don't loop. The files play once, but stop. This is what I'm doing: ffmpeg -ss 16:43 -i ./10.mkv -loop 10 -t 1 -filter:v "setpts=PTS-STARTPTS, crop=1200:800, hqdn3d=1.5:1.5:6:6, scale=600:400" 10-file-2.apng I've tried -loop -1 -loop 10 -loop 1 but there is no looping done. My version is ffmpeg-3.3.el_capitan.bottle.tar.gz
• 13:51
  Which version of FFmpeg.AutoGen should I use? - Leo Pripos Marbun Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use FFMediaToolkit library which uses FFmpeg.AutoGen. And I encountered an error Invalid data found when processing input when calling ffmpeg.avformat_open_input this line. I tried run in windows & ubuntu using the latest version ffmpeg, it works fine. But when I run in Nvidia Jetson, it throws error. I tried to figure out the issue and MABYE it is because of the mismatch version of installed ffmpeg and FFmpeg.AutoGen. But somehow, I can't update the ffmpeg in jetson. Here the libraries inside (...) -- this line
• 13:51
  Possible Memory leak in FFMPEGAutogen Example - Deadmeat Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the https://github.com/Ruslan-B/FFmpeg.AutoGen library to connect to an rtsp camera stream and save the frames as png images. Testing with the FFMPEG.Autogen's example project present in the GitHub repository with no changes I've noticed that the memory usage seems to constantly grow in infinitely. I've made sure to dispose of all bitmaps, pointers etc after use but am unable to pinpoint the source of the issue. It seems to be coming from their VideoStreamDecoder.TryDecodeNextFrame method as shown below: public bool TryDecodeNextFrame(out (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen, FFMPEG.Autogen's example project, VideoStreamDecoder.TryDecodeNextFrame
• 13:51
  Ffmpeg possible sws_scale memory leak - Expressingx Newest 'ffmpeg' Questions - Stack Overflow
  I'm decoding whatever the camera codec is and then always encode it to H264 and more specifically qsv if it is supported. Currently having 2 cameras to test. One is H264 encoding and one is rawvideo. The problem comes with rawvideo. The pixel format is BGR24 and scaling to NV12 I will simplify the code because it is as any other example. avcodec_send_packet() // while avcodec_receive_frame() // if frame is not EAGAIN convert BGR24 to NV12 if (_pConvertContext == null) _pConvertContext = CreateContext(sourcePixFmt, (...)
• 13:50
  Why do I catch the "AccessViolationException" exception in av_hwframe_transfer_data () when I run it as a windows service? - vakym Newest 'ffmpeg' Questions - Stack Overflow
  I write Windows service witch decodig video stream from camera. I write it on c# with FFMPEG.Autogen wrapper. My problem is "AccessViolationException" when i run it as service. If i run application as Console Application i have no exceptions. In Stacktrace i see this: в FFmpeg.AutoGen.ffmpeg+<>c.<.cctor>b__5_572(FFmpeg.AutoGen.AVFrame*, FFmpeg.AutoGen.AVFrame*, Int32) в FFmpeg.AutoGen.ffmpeg.av_hwframe_transfer_data(FFmpeg.AutoGen.AVFrame*, FFmpeg.AutoGen.AVFrame*,Int32) в (...)
• 13:50
  How to decode MP4 file use GPU use ffmpeg.autogen? - wang ning Newest 'ffmpeg' Questions - Stack Overflow
  How to decode MP4 file use GPU? I use the demo of FFmpeg.AutoGen. It is good for code: private static unsafe void DecodeAllFramesToImages() But this is use CPU to decode. I want get a demo use GPU to decode. How can i do this ? This is FFmpeg.AutoGen demo: private static unsafe void DecodeAllFramesToImages() // decode all frames from url, please not it might local resorce, e.g. string url = "../../sample_mpeg4.mp4"; var url = (...)
• 13:42
  How to use CUDA to decode video in FFmpeg.AutoGen? - JongSeong Kim Newest 'ffmpeg' Questions - Stack Overflow
  FFmpeg.AutoGen version: 7.0 Following is similar with Program.cs in "FFmpeg.AutoGen.Example" directory. var sourceSize = vsd.FrameSize; var sourcePixelFormat = AVPixelFormat.AV_PIX_FMT_CUDA; var destinationSize = sourceSize; var destinationPixelFormat = AVPixelFormat.AV_PIX_FMT_BGRA; VideoFrameConverter vfc = new VideoFrameConverter(sourceSize, sourcePixelFormat, destinationSize, destinationPixelFormat); However, when 'ffmpeg.sws_getContext' is called, ffmpeg shows below error message. ffmpeg error message: [swscaler ⓐ 000001b7af30aa00] (...)
• 13:53
  Decode multiple video on GPU (FFmpeg.autogen + C#) - Sang Nguyen Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to use the basic example about decoding video (FFmpeg.AutoGen.Example) in the FFmpeg.autogen 4.3.0.3 library https://github.com/Ruslan-B/FFmpeg.AutoGen to decode multiple videos on a GPU (AMD radeon R7 430). My main function is as follows: private static void Main(string[] args) var url = ⓐ".\\abc.mp4"; for (int i = 0; i < 11; i++) url = ⓐ"D:\\video\\abc" + i + ".mp4"; new Thread(() => DecodeAllFramesToImages(AVHWDeviceType.AV_HWDEVICE_TYPE_D3D11VA, url); ).Start(); I try to (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen, enter image description here, enter image description here
• 14:07
  Using FFmpeg AutoGen save to bitmap works on Windows but not on Linux - Chris Newest 'ffmpeg' Questions - Stack Overflow
  I'm using FFmpeg.AutoGen to decrypt video and save the frames as bitmaps. Code is using dotnet core and I'd like to get it working for both Windows and Linux. The code is similar to the example provided: https://github.com/Ruslan-B/FFmpeg.AutoGen/blob/db9bcd4b9dfad5d117ffd71fe1a2d073e96a3520/FFmpeg.AutoGen.Example/Program.cs AVFrame convertedFrame = this.converter.Convert(frame); Bitmap image = new Bitmap(convertedFrame.width, convertedFrame.height, convertedFrame.linesize[0], PixelFormat.Format24bppRgb, (IntPtr)convertedFrame.data[0]); When saving the (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen/blob/db9bcd4b9dfad5d117ffd71fe1a2d073e96a3520/FFmpeg.AutoGen.Example/Program.cs
• 14:06
  Is there another way to export a frame in ffmpeg to a texture2d? My code working in Windows but not Linux - Robert Russell Newest 'ffmpeg' Questions - Stack Overflow
  Sound is working in Linux the same as it did in Windows. But the video is just a black screen and when I attempt to save the frames as BMP files all of them were corrupt/empty files. I am using Ffmpeg.Autogen to interface with the libraries. https://github.com/Ruslan-B/FFmpeg.AutoGen. The file is VP8 and OGG in a MKV container. Though the extension is AVI for some reason. I tried messing with the order of the code a bit. I checked to make sure the build of Ffmpeg on Linux had VP8. I was searching online but was having trouble finding another way to do what I am doing. This is to (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen, https://github.com/Sebanisu/OpenVIII
• 14:05
  Kernel32 not found when using FFmpeg.Autogen 4.1.0.2 in Mono/Linux - Robert Russell Newest 'ffmpeg' Questions - Stack Overflow
  I'm submitting a bug report while I was posting this I didn't know I could see into FFmpeg.Autogen from the stacktrace. Anyways I posted a Bug Report on Github https://github.com/Ruslan-B/FFmpeg.AutoGen/issues/109 I'm trying to run my code in Linux that uses FFmpeg.Autogen to interface with the ffmpeg libraries. I am getting kernel32 dll not found can not figure out why. He says to not post issues to github for troubleshooting. Possible related issue: https://github.com/Ruslan-B/FFmpeg.AutoGen/issues/89 First thing I've tried were to (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen/issues/109, https://github.com/Ruslan-B/FFmpeg.AutoGen/issues/89
• 14:05
  Extract audio from video using autogen ffmpeg C# in Unity - Johan Sophie Newest 'ffmpeg' Questions - Stack Overflow
  Hi I'm using ffmpeg autogen to extract audio from video in Unity, but when I following this code, the file write cannot write, it's 0Kb, so what's issue of this or someone have any examples for extract audio using this library, apologize for my English. This is github of library: https://github.com/Ruslan-B/FFmpeg.AutoGen unsafe void TestExtractAudio() string inFile = Application.streamingAssetsPath + "/" + strFileName; string outFile = Application.streamingAssetsPath + "/" + strFileNameAudio; AVOutputFormat* (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen
• 13:55
  FFMPEG.Autogen rtsp video is frequently broken - DK kim Newest 'ffmpeg' Questions - Stack Overflow
  I developed an RTSP player with FFMPEG.Autogen in C#. I want to decode the stream and send it to a bitmap to display a picture box without encoding it. RTSP video plays fine. However, my videos often break. Sometimes the image turns gray and then comes back, or the screen appears as if some part is broken and blurred. I confirmed that the frame was coming in properly, but there are several hypotheses as to whether it is a problem with the decoded data or because it is run asynchronously, but I do not know the detailed reason. Please help me. this is my (...)
• 13:54
  System.AccessViolationException on avcodec_open2 using FFMpeg.AutoGen - forlayo Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFMpeg.AutoGen (v6.0.0.2) with hwencode support for Nvidia cards, and in few devices (for example on NVIDIA GeForce MX350) when I am doing fffmpeg.avcodec_open2 I got the following ffmpeg message in logs: [h264_nvenc ⓐ 000001f473fcc480] OpenEncodeSessionEx failed: unsupported device (2): (no details) And then it crashes with the following crash: Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at (...) -- a sample app, nvenc_open_session, s called here, fail2 routine, in same method, here, nvenc_print_error, nvenc_check_device -> nvenc_setup_device
• 13:54
  How to handle FFmpeg hardware decoder initialisation failure - Bernie Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the FFmpeg.AutoGen library in my project and found a crash on a video using hardware decoding. So I went back to the example and tested it there and found the same result. The example reports the following Current directory: D:\\...\\Ruslan-B\\FFmpeg.AutoGen\\FFmpeg.AutoGen.Example\\bin\\Debug\\net6.0 Running in 64-bit mode. FFmpeg binaries found in: D:\\...\\Ruslan-B\\FFmpeg.AutoGen\\FFmpeg\\bin\\x64 FFmpeg version info: 5.0-full_build-www.gyan.dev Use hardware acceleration for decoding?[n] y Select hardware decoder: 1. (...) -- video, example
• 14:08
  AVFrame with NV12 format breaks using D3D11 HW acceleration - faith0058 Newest 'ffmpeg' Questions - Stack Overflow
  I have a ffmpeg-autogen video decoder, im trying to use a D3D11 as HW accelerator, but the frame i get in result(with NV12 format) is broken. If im doing the same with Vulkan as accelerator, everything works fine, but vulkan uses more graphic card resources.. For rendering i use OpenTK, received frames i convert to RGB with textures and shaders. Below my decoder initialization. public VideoStreamDecoder(AVCodecParameters* parameters, AVCodec* codec) AVCodec* _codec = codec; _pCodecContext = ffmpeg.avcodec_alloc_context3(_codec);  (...) -- normally working, broken, image, everything
• 14:07
  How to encode from image to mp4 file use GPU? - user24185484 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert images folder to mp4 via FFmpeg AutoGen https://github.com/Ruslan-B/FFmpeg.AutoGen. I use the demo of FFmpeg.AutoGen.Example It is good for me but this is use CPU to encode.This is FFmpeg.AutoGen demo: private static unsafe void EncodeImagesToH264() var frameFiles = Directory.GetFiles("./frames", "frame.*.jpg").OrderBy(x => x).ToArray(); using var fistFrameImage = ReadFrame(frameFiles.First()); var outputFileName = "frames/out.h264"; var fps = 25; var sourceSize = new Size(fistFrameImage.Width, (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen
• 06:09
  How To covert mp4 video to m3u8 in ffmpeg using nodejs - VINAYKUMAR DAIVAJNA Newest 'ffmpeg' Questions - Stack Overflow
  I am able to change the resolution of the video but I am getting error while trying to convert it to m3u8 format.

Newest 'libx264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/libx264

• 01:06
  very low latency streaminig with ffmpeg using a webcam - userDtrm Newest 'libx264' Questions - Stack Overflow
  I'm trying to configure ffmpeg to do a real-time video streaming using a webcam. The ffmpeg encoder command I use is as follows. ffmpeg -f v4l2 -input_format yuyv422 -s 640x480 -i /dev/video0 -c:v libx264 -profile:v baseline -trellis 0 -subq 1 -level 32 -preset superfast -tune zerolatency -me_method epzs -crf 30 -threads 0 -bufsize 1 -refs 4 -coder 0 -b_strategy 0 -bf 0 -sc_threshold 0 -x264-params vbv-maxrate=2000:slice-max-size=1500:keyint=30:min-keyint=10: -pix_fmt yuv420p -an -f mpegts udp://192.168.1.8:5001 The ffplay command used to display the video (...)

4 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:24
  avcodec/mediacodecenc: Check fifo write result and simplify fifo operation - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mediacodecenc: Check fifo write result and simplify fifo operation Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> Reviewed-by: Anton Khirnov <antonⓐkhirnov.net> [DH] libavcodec/mediacodecenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:15
  How can I make an rtsp stream as correct as possible in a Django application? [closed] - user25336067 Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a mini video surveillance system on Django. I want the stream to be output to the tag. now I have output to the img tag using a stream and jpeg images (using OpenCV)how to make a stream from a video, you may need to use WebRTC for the stream and somehow decode the video using ffmpeg, please tell me def generate_frames(rtsp_url): cap = cv2.VideoCapture(rtsp_url) # Замените на ваш RTSP URL while True: success, frame = cap.read() if not success: break # Кодируем кадр в JPEG ret, buffer = cv2.imencode('.jpeg', frame) frame = (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 11:36
  tests/checkasm: Simplify logic for WASI signal handling - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  tests/checkasm: Simplify logic for WASI signal handling Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> Reviewed-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/checkasm.c [DH] tests/checkasm/checkasm.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:09
  Command-line streaming webcam with audio from Ubuntu server in WebM format - mjtb Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to stream video and audio from my webcam connected to my headless Ubuntu server (running Maverick 10.10). I want to be able to stream in WebM format (VP8 video + OGG). Bandwidth is limited, and so the stream must be below 1Mbps. I have tried using FFmpeg. I am able to record WebM video from the webcam with the following: ffmpeg -s 640x360 \\ -f video4linux2 -i /dev/video0 -isync -vcodec libvpx -vb 768000 -r 10 -vsync 1 \\ -f alsa -ac 1 -i hw:1,0 -acodec libvorbis -ab 32000 -ar 11025 \\ -f webm /var/www/telemed/test.webm However (...)
• 21:13
  How to make cropping when doing motion-tracking look super smooth? (using cv2 and yolo v8) - Thomas Lancer Newest 'ffmpeg' Questions - Stack Overflow
  I'm using yolo to track a face in a video on a frame by frame basis, and then I'm using cv2 to crop the video (with some padding) around the speakers face so it creates a motion tracking type effect. (short example here: https://www.instagram.com/reel/DCIFkFEObkE/?hl=en) The problem I'm running into is my final crop looks "shaky". Like it's flickering a bit. I think this is because every frame yolo is updating the coordinates, and so there's a slight change in x, y and because of that it creates this shakiness/flickering effect. Here's what mine looks (...) -- https://www.instagram.com/reel/DCIFkFEObkE/?hl=en, https://drive.google.com/file/d/1MKHWK-5EH5abSq6i32r71GWld76tN1GP/view?usp=sharing
• 16:01
  How can I get all handles when I debug a MFC program with Visual Studio? - Goblet Machine Newest 'ffmpeg' Questions - Stack Overflow
  I have a MFC program with FFMpeg to play video, but when I use the DirectX decoder, I found that every time I close the video, the handle count in Task Manager increases by 3 (sometimes the count decreases after a while, but overall it shows an upward trend). I tried using WinDbg to capture the handles, but apart from these handles being called by the NVIDIA driver, there was no useful information. So I think maybe I can get more information in Visual Studio. Can anyone give some (...)
• 12:46
  FFMPEG AMF Hardware Acceleration on AMD Ryzen™ 7 7700 Server in Ubuntu 22.04 [closed] - LoNormaly Newest 'ffmpeg' Questions - Stack Overflow
  I was trying to make ffmpeg available with AMF and have access to the AMF hardware acceleration (in ffmpeg -hwaccels) but failed. At first, the kernel that the server as Ubuntu 22.04 came with was 5.15 and after contacting support I was explained that I need to upgrade the kernel to have access to /dev/dri. So I upgraded to 6.8 and then I had access to /dev/dri and was able to use ffmpeg 7.1 with vaapi working. In AMD, they have their own hardware acceleration named AMF, that allows much better speed and quality of transcoding. I installed the AMD GPU drivers like (...) -- https://www.amd.com/en/support/download/linux-drivers.html
• 13:58
  launch ffmpeg on Maui Android - lolveley Newest 'ffmpeg' Questions - Stack Overflow
  I have an Maui app which is deployed on an Android tablet, a Samsung tab S9 FE. I have copied the ARM8 version of the ffmpeg executable in the AppDataDirectory of my deployed app. The executable, named "ffmpeg", has the rights _rwxrwxrwx (the underscore means this is a file, and not a directory). I try to execute the file with the command Process.Start: private void GetThumbnail(string inputFile, string imageFullPath, string ffmpegFullPath) ProcessStartInfo startInfo = new ProcessStartInfo(); string arguments = $"-i inputFile -ss 00:01:00.000 -vframes 1 (...)
• 08:08
  Adding soft dvdsub subtitle track (idx+sub) to mp4 video using ffmpeg [closed] - Tom Solid Newest 'ffmpeg' Questions - Stack Overflow
  I have an .mp4 video and a dvdsub subtitle in to files (.idx and .sub). When I play the video (with VLC media player) the subtitles are displayed correctly, but I have tried to repack the video and the subtitles into one .mp4 file with ffmpeg: ffmpeg -i input.mp4 -f vobsub -sub_name input.sub -i input.idx -map 0:v:0 -map 0:a:0 -map 1:s:0 -codec:v copy -c:a copy -scodec dvdsub output.mp4 the subtitles are not displayed. According to VLC, there is a subtitle track in output.mp4, but I cant see any subtitles during the play. Additional information that the video size (...)
• 10:03
  How to optimize recording feature with mediasoup? - hu7sy Newest 'ffmpeg' Questions - Stack Overflow
  I am using Mediasoup for video conference call and now i have add ffmpeg for recording feature. Ffmpeg code below get _commandArgs() let commandArgs = [ '-loglevel', 'debug', '-report', '-protocol_whitelist', 'file,pipe,udp,rtp', '-fflags', '+genpts', '-flags', 'low_delay', '-f', 'sdp', '-i', 'pipe:0', '-rtbufsize', '256M', '-muxdelay', '2.0',  (...)
• 04:15
  how to fix Non-monotonous DTS in output stream 0:1; when using ffmpeg [closed] - xiao xin Newest 'ffmpeg' Questions - Stack Overflow
  When I use ffmpeg to convert m3u8 to mp4, I get some warning, ffmpeg -i xx.m3u8 -c copy demo.mp4 warning is Non-monotonous DTS in output stream 0:1; previous: 3277744, current: 3276712; changing to 3277745. This may result in incorrect timestamps in the output file. Non-monotonous DTS in output stream 0:1; previous: 3277745, current: 3277736; changing to 3277746. This may result in incorrect timestamps in the output file. what should I do to fix (...)

3 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:29
  aarch64/vvc: Add apply_bdof - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  aarch64/vvc: Add apply_bdof Test on rpi 5 with gcc 12: apply_bdof_8_8x16_c: 7315.2 ( 1.00x) apply_bdof_8_8x16_neon: 1876.8 ( 3.90x) apply_bdof_8_16x8_c: 7170.5 ( 1.00x) apply_bdof_8_16x8_neon: 1752.8 ( 4.09x) apply_bdof_8_16x16_c: 14695.2 ( 1.00x) apply_bdof_8_16x16_neon: 3490.5 ( 4.21x) apply_bdof_10_8x16_c: 7371.5 ( 1.00x) apply_bdof_10_8x16_neon: 1863.8 ( 3.96x) apply_bdof_10_16x8_c: 7172.0 ( 1.00x) apply_bdof_10_16x8_neon: 1766.0 ( 4.06x) apply_bdof_10_16x16_c: 14551.5 ( 1.00x) apply_bdof_10_16x16_neon: 3576.0 ( 4.07x) apply_bdof_12_8x16_c: 7236.5 ( 1.00x) apply_bdof_12_8x16_neon: (...)
• 19:44
  lavc/h264dsp: R-V V intra loop filter - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/h264dsp: R-V V intra loop filter As with the inter loop filter, performance metrics seem to be biased in favour of the C implementation because checkasm inputs almost always fall in the no-op case. h264_h_loop_filter_chroma_intra_8bpp_c: 82.8 ( 1.00x) h264_h_loop_filter_chroma_intra_8bpp_rvv_i32: 72.6 ( 1.14x) h264_h_loop_filter_chroma_mbaff_intra_8bpp_c: 41.1 ( 1.00x) h264_h_loop_filter_chroma_mbaff_intra_8bpp_rvv_i32: 72.6 ( 0.57x) h264_h_loop_filter_luma_intra_8bpp_c: 166.1 ( 1.00x) h264_h_loop_filter_luma_intra_8bpp_rvv_i32: 395.4 ( 0.42x) (...)
• 14:29
  aarch64/vvc: Reuse ff_vvc_put_pel_pixels for chroma - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  aarch64/vvc: Reuse ff_vvc_put_pel_pixels for chroma [DH] libavcodec/aarch64/vvc/dsp_init.c

Piwik http://piwik.org/

• 09:58
  Open Banking Security 101: Is open banking safe? - Daniel Crough Piwik
  Open banking is changing the financial industry. Statista reports that open banking transactions hit $57 billion worldwide in 2023 and will likely reach $330 billion by 2027. According to ACI, global real-time payment (RTP) transactions are expected to exceed $575 billion by 2028. Open banking is changing how banking works, but is it safe? And what are the data privacy and security implications for global financial service providers? This post explains the essentials of open banking security and addresses critical data protection and compliance questions. We’ll explore how a privacy-first (...) -- Banking and Financial Services

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 20:47
  lavc/vvc: Use a bitfield to store MIP information - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Use a bitfield to store MIP information Reduces memory consumption by ~4MB for 1080p video with a maximum delay of 16 frames by packing various information related to MIP: * intra_mip_flag, 1 bit * intra_mip_transposed_flag, 1 bit * intra_mip_mode, 4 bits Into a single byte. Co-authored-by: Nuo Mi <nuomi2021ⓐgmail.com> Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/cabac.c [DH] libavcodec/vvc/ctu.c [DH] libavcodec/vvc/dec.c [DH] libavcodec/vvc/dec.h [DH] libavcodec/vvc/dsp.c [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:40
  How to Make FFmpeg Duplicate the Last Frame When No New Frames Are Received? [closed] - David Asulin Newest 'ffmpeg' Questions - Stack Overflow
  I’m trying to record video input from a pipe that only streams new frames if there is a change in the video source. I want FFmpeg to duplicate the last frame in case no new frame is received. The command I use is: nc localhost 9000 | ffmpeg -i pipe: -framerate 25 -fps_mode cfr output.mp4 Running the above command only records a few seconds. How can I make FFmpeg record continuously and duplicate the last frame when no new frame is received?
• 21:19
  Failed to find two consecutive MPEG audio frames [closed] - matrixebiz Newest 'ffmpeg' Questions - Stack Overflow
  I'm receiving this error trying to download/convert an m3u8 [mp3 ⓐ 000001c8f5112200] Format mp3 detected only with low score of 1, misdetection possible! [mp3 ⓐ 000001c8f5112200] Failed to find two consecutive MPEG audio frames. [in#0 ⓐ 000001c8f5111f40] Error opening input: Invalid data found when processing input Any way to fix this in my ffmpeg command line? Also, playing the stream in VLC and other apps shows this in the path /%EF%BB%BF for some reason. VLC is unable to open the MRL 'file:///C:/Temp/%EF%BB%BF'. Check the log for details. Then (...)
• 16:38
  FFmpeg problems: encode/normalize then concat multiples videos - BDR Newest 'ffmpeg' Questions - Stack Overflow
  I want to: encode a lot of videos to add text concat them into one final video (preferably without re-encoding) I need the operations to be done in distinct 2 steps. I read a lot of posts but don't manage to find the correct solution. The videos comes from different source, and so have different encoding settings. To encode the videos I use the following command: ffmpeg -i input.1.mp4 -vcodec libx264 -acodec aac -pix_fmt yuv420p-vf scale=1920:-2, drawtext=fontfile=./roboto.ttf: fontsize=40: text='ABC': x=(w-text_w)-w/20: (...)
• 16:13
  How to interact with process output? - 1ben99 Newest 'ffmpeg' Questions - Stack Overflow
  Ok so at the moment I have a program which runs FFmpeg using a process in VB.net. I send the process arguments in the startinfo as well as other things like the file location. When I run the code it sends the console output to the debug console; this is probably because I have the .UseShellExecute = False and processInfo.RedirectStandardOutput = True My question is: How do I make something which can interpret the output? Also with FFmpeg, the process is continuous so the process is always running for the most part and constantly adding more output lines in the debug (...)
• 10:39
  Capturing actual video stream quality using FFmpeg and FFplay – smooth recording but stuttering stream - Karlitos Bemowo Newest 'ffmpeg' Questions - Stack Overflow
  I’m trying to analyze the quality of a video stream over a local network using FFmpeg. My goal is to capture the actual streamed video (with all artifacts, stuttering, or buffering) as experienced in real-time, rather than a reconstructed, smooth output. Currently, the recorded video is perfectly smooth, but the live stream played using ffplay exhibits noticeable stuttering. Additionally, while the duration of the recording matches the original video, the live stream lasts longer, likely due to buffering caused by network instability. Here are the commands I’m (...)
• 07:25
  How to accquire the real size(rendering size) of a video through ffmpeg - Lin Xing Newest 'ffmpeg' Questions - Stack Overflow
  Here is the video video, when i use the ffmpeg command line tool to read it's basic information(via: ffmpeg -i xxx.mp4), i get the size "720x1080", but when i open this video through chrome or VLC, i got the size "720x1271". why the rendering size is 720x1271? chrome browser: enter image description here ffmpeg -i: enter image description here When i extract the h264 format data out of this video, i still get the size of height 1080. But when you play it with chrome browser or VLC, it's height is 1271, It confuse (...) -- video, enter image description here, enter image description here
• 08:37
  How to make WebM screen recording chunks independently processable for audio with FFmpeg? - Dinesh Kumar Newest 'ffmpeg' Questions - Stack Overflow
  I am streaming screen recordings from the browser into 5-second WebM chunks using the MediaRecorder API. The first chunk (root chunk) is independently processable because it contains the necessary EBML headers and metadata. However, subsequent chunks are not independently processable, as they lack the required metadata, which prevents me from extracting audio independently from them. I am unable to extract audio independently from the individual chunks using FFmpeg due to missing headers, resulting in errors like EBML header parsing failed. The first chunk works fine on its own, but (...)
• 01:13
  How do I get drawtext filter in ffmpeg to work on ubuntu 22.04? - chovy Newest 'ffmpeg' Questions - Stack Overflow
  Here's my script, but no matter what I try the drawtext filter is not enabled: #!/bin/bash set -e # Exit on any error # Define installation directories INSTALL_DIR="$HOME/ffmpeg_build" BIN_DIR="$HOME/bin" SOURCE_DIR="$HOME/ffmpeg_sources" NUM_CORES=$(nproc) echo "Creating necessary directories..." mkdir -p "$INSTALL_DIR" "$BIN_DIR" "$SOURCE_DIR" # Install required tools and dependencies echo "Installing build tools and essential libraries..." sudo apt-get update sudo apt-get install -y \\ autoconf automake (...)
• 01:32
  Issue with FFmpegKit in React Native: "Cannot read property 'ffmpegSession' of null" - ragav ravi Newest 'ffmpeg' Questions - Stack Overflow
  I am new to React Native and Expo, and I’m trying to upload a video using expo-image-picker, then pass its URI to FFmpegKit (ffmpeg-kit-react-native) to extract frames from the video. Here’s what I’ve done so far: I’m using expo-image-picker to upload the video and retrieve its URI. I use FileSystem.documentDirectory to get the local file path from the URI and then pass this path to the FFmpegKit command. However, I’m encountering the following error: Cannot read property 'ffmpegSession' of null I’ve tried calling FFmpegKitConfig.init() before (...) --

2 décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:55
  tests/swscale: fix sscanf return value check - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  tests/swscale: fix sscanf return value check We only parse 12 values, so this check always failed. Regression caused by a change to the print format. Fixes: 59c39a79cafdcb46972380aac5644f84059cd2a8 Signed-off-by: Niklas Haas <gitⓐhaasn.dev> Sponsored-by: Sovereign Tech Fund [DH] libswscale/tests/swscale.c
• 10:28
  swscale/graph: fix memleak of cascaded graphs - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale/graph: fix memleak of cascaded graphs Just free them directly and discard the parent context. Fixes: bf738412e849bcb8c63a330dfb814281b3d97f6b Signed-off-by: Niklas Haas <gitⓐhaasn.dev> Sponsored-by: Sovereign Tech Fund [DH] libswscale/graph.c
• 12:08
  swscale/utils: disable full_chr_h_input optimization for odd width - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale/utils: disable full_chr_h_input optimization for odd width The basic problem here is that the rgb*ToUV_half_* functions hard-code a bilinear downsample from src[i] + src[i+1], with no bounds check on the i+1 access. Due to the signature of the function, we cannot easily plumb the "true" width into the function body to perform a bounds check. Similarly, we cannot easily pre-pad the input because it is typically reading from the (const) input frame, which would require a full memcpy to pad. Either of these solutions are more trouble than the feature is worth, so just (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:38
  Fade in image on existing video [closed] - csphmay Newest 'ffmpeg' Questions - Stack Overflow
  I'm currently trying to create a video which has a background image and a mp3 set for background audio and now I want to achieve to add a second image which fades in over 5 seconds. The result should be a video where the background image is shown and the second image is laying over it (The second image is basically a logo which I would like to place in the bottom right corner). To this point I wasn't able to achieve the result described above with a single FFMPEG command. With the following two commands I generate the video with the first background image and with the (...)
• 21:12
  Applying audio to video background using ffmpeg_kit_flutter package not working in flutter - MhmD Yo Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to merge video and audio and downloading the video in a flutter app using ffmpeg_kit_flutter package, it works fine with the videos that recorded by screen recorder app which records the screen of my phone, but it does not works with the videos that recorded by my phone camera or any video else and I do not know where the problem is. Here's my code: Future mergeRecordWithIntro(required String videoPath, required String audiPath, ) async final random = Random(); final directory = await getTemporaryDirectory(); String outputVideoPath (...)
• 17:44
  Python code to download hls stream to mp4 - Maad A.Galil Newest 'ffmpeg' Questions - Stack Overflow
  I wrote the following code to download a video from a website. Chrome extensions can detect the video and download it. However, my code gets the following errors. Any help? from bs4 import BeautifulSoup import requests from subprocess import check_output video_url = 'https://www.dimakids.com/ab6al-aldigetal-s3-1415387355-21011.html#sets' headers = 'User-Agent': 'Mozilla/5.0' url = requests.get(video_url, headers=headers) page = url.content soup = BeautifulSoup(page, "html.parser") result = (...) -- https://www.dimakids.com/ab6al-aldigetal-s3-1415387355-21011.html#sets, https://www.dimakids.com/images/anime/cat_1415387355.jpg, https://stream.foupix.com/animeios/1415387355/ab6al_aldigetal_s3_01.mp4/index.m3u8?tkn=6nyEskSbHBI713sG0uhZJQ&tms=1733171604

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:31
  doc/filters: add an entry for vf_lcevc - James Almer git.videolan.org Git - ffmpeg.git/rss log
  doc/filters: add an entry for vf_lcevc Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] doc/filters.texi
• 15:34
  doc/codecs: add missing enhancements value for export_side_data - James Almer git.videolan.org Git - ffmpeg.git/rss log
  doc/codecs: add missing enhancements value for export_side_data Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] doc/codecs.texi

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 09:58
  JavaCV FFmpegFrameRecorder save images to video - Learning from masters Newest 'ffmpeg' Questions - Stack Overflow
  I am a bit confused about the use of JavaCV FFmpegFrameRecorder. I have several byte[] or short[] arrays (depending if my images are 8 or 16 bit) were I have the data related for several images. Now, my idea is to use JavaCPP to send each image to ffmpeg so it creates me a mute video from this collection at the framerate I wish. Up to now I have: package ffmpeg; import java.awt.EventQueue; import java.io.File; import java.nio.Buffer; import java.nio.ByteBuffer; import javax.swing.JFrame; public class rwa private JFrame (...)
• 07:51
  merge webm files without headers [closed] - Shiva Kumar Newest 'ffmpeg' Questions - Stack Overflow
  I have a list of video chunks of a video. first chunk is only playable and the rest are not because they are missing the header information. I want to merge them into a single playable video. tried ffmpeg commands ffmpeg -i chunk1.webm -i chunk2.webm -i chunk3.webm -filter_complex "[0:v][0:a][1:v][1:a][2:v][2:a]concat=n=3:v=1:a=1[outv][outa]" -map "[outv]" -map "[outa]" output.webm [matroska,webm ⓐ 0x55c5fc62ffc0] Format matroska,webm detected only with low score of 1, misdetection possible! [matroska,webm ⓐ 0x55c5fc62ffc0] EBML header parsing failed chunk2.webm: Invalid data (...)
• 05:49
  FFMPEG - RUST - Setting flags not working [closed] - Varun Deep Saini Newest 'ffmpeg' Questions - Stack Overflow
  I am using rtp to copy streams to a mp4 files but i am getting this error [rtp ⓐ 0x15bf04f80] Protocol 'rtp' not on whitelist 'file,crypto,data'! I am using the ffmpeg-rust "7.1.0" crate in rust How do i add this flag Tried the av_dict_set() but could not get it to work
• 05:34
  Is celery a good choice for long running tasks? - jasoos Newest 'ffmpeg' Questions - Stack Overflow
  We are using a combination of django, rabbitmq, celery and ffmpeg to read camera streams and break them into images to be stored into filesystem. This setup works 24x7. Now, for each camera stream we are creating a separate task and each will theoretically run for indefinite period. If a stream goes down, we wait for n number of frames, create an exception and in the exception handler, after creating a delay of 1 min using time.sleep we rerun the ffmpeg process. My questions are, Is this a right approach? Should we use celery for reading streams? Is celery the right (...)

1er décembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:20
  avcodec/pngdec,enc: update mDCV and cLLI chunk capitalization - Leo Izen git.videolan.org Git - ffmpeg.git/rss log
  avcodec/pngdec,enc: update mDCV and cLLI chunk capitalization The PNGv3 Specification Draft [1] has changed the capitalization of mDCV and cLLI chunks (formerly mDCv and cLLi). This patch updates FFmpeg to work with the new chunk names while retaining decode-side compatibility with files created using the old names. [1]: https://w3c.github.io/png/ Signed-off-by: Leo Izen <leo.izenⓐgmail.com> [DH] libavcodec/pngdec.c [DH] libavcodec/pngenc.c [DH] (...)
• 16:09
  checkasm/sw_range_convert: test negative input values - Ramiro Polla git.videolan.org Git - ffmpeg.git/rss log
  checkasm/sw_range_convert: test negative input values [DH] tests/checkasm/sw_range_convert.c
• 23:24
  avcodec/rv60dec: Check qp for intra - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/rv60dec: Check qp for intra The rv60_qp_to_idx table only supports qp up to 31 on intra Fixes: global-buffer-overflow Fixes: 377543818/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-5160167345291264 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Peter Ross <prossⓐxvid.org> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/rv60dec.c
• 05:14
  avformat/mpegts*: reduce use of magic numbers - Scott Theisen git.videolan.org Git - ffmpeg.git/rss log
  avformat/mpegts*: reduce use of magic numbers Note ISO/IEC 13818-1 defines an Extension_descriptor with descriptor_tag value 0x3f (63), so I kept the DVB comment. I don't know what defines stream_type value 0x8a as DTS. I don't have any Blu-ray standards so I don't know where those stream_type values are defined. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavformat/mpegts.c [DH] libavformat/mpegts.h [DH] libavformat/mpegtsenc.c
• 05:14
  avformat/mpegts: is_pes_stream() use switch case - Scott Theisen git.videolan.org Git - ffmpeg.git/rss log
  avformat/mpegts: is_pes_stream() use switch case also add STREAM_TYPE_PRIVATE_SECTION since a private_section() is not a PES_packet(). Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavformat/mpegts.c
• 19:44
  avcodec/cbs_h266: Fix typo - Alexander Strasser git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_h266: Fix typo Introduced in commit 98698ed3c24bfd0b1e6e6db943b5f25f6046cee7 Fixes: CID1635788 CID1635789 Signed-off-by: Alexander Strasser <eclipse7ⓐgmx.net> [DH] libavcodec/cbs_h266_syntax_template.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:34
  How to get the format of nvdec video frame from ffmpeg decoding ? How to use it in cuda structures? - Soleil Newest 'ffmpeg' Questions - Stack Overflow
  I am using code, almost exactly https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/hw_decode.c, but I am not transferring the decoded data to the host, I keep it on the device for later use with cuda code (my goal will be to use RGB 8-12 bits per channel data). The interesting part is: //after decoding/encoding status = avcodec_receive_frame(avctx, frame); if (status != AVERROR(EAGAIN) && status != AVERROR_EOF) LogMessage(L"frame timestamp: %i\\n", (int)frame->best_effort_timestamp); if (status == AVERROR(EAGAIN) || status == AVERROR_EOF)  (...) -- https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/hw_decode.c
• 09:30
  I cannot play a mp3 file on Discord's voice channel using discord.py - ra1ned Newest 'ffmpeg' Questions - Stack Overflow
  I am creating a discord bot that plays lofi for me. It does not play a song for me even though it shows a green indicator on a voice channel. Here's what I've written: if message.content == "!join": await message.author.voice.channel.connect() await message.channel.send("Successfully connected") if message.content == "!play": if message.guild.voice_client is None: await message.channel.send("use !join") return await message.channel.send("playing a song rn") print('*** playing a song rn')  (...)

30 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 09:13
  avutil/mem_internal: Don't use alignas for MSVC - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avutil/mem_internal: Don't use alignas for MSVC MSVC messed up standard C features, again. Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> Reviewed-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/mem_internal.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:17
  Concatenate multiple .ts files into single mp4 without ffmpeg usage - urFate Newest 'ffmpeg' Questions - Stack Overflow
  How to concatenate multiple .ts files into single mp4 without ffmpeg usage on Java (Android/Kotlin)? FFMpeg it's huge library in terms of size for android applications itself and I'm sure there is a way to concatenate ts's without that library. How to solve this on Java? If simply concatenate files via byte-to-byte way in result we will get playable, but not seekable .mp4 file.
• 09:21
  Turn an FFmpeg command into an FFmpeg wasm exec function - SeriousLee Newest 'ffmpeg' Questions - Stack Overflow
  I have this gnarly FFmpeg command: ffmpeg -i music.mp3 -i video.mp4 -i speech.mp3 -filter_complex "[0:a]atrim=0:$(ffprobe -i speech.mp3 -show_entries format=duration -v quiet -of csv=p=0),volume=0.08[trimmed_music]; [2:a]volume=2[speech]; [1:v]loop=-1,trim=duration=$(ffprobe -i speech.mp3 -show_entries format=duration -v quiet -of csv=p=0),setdar=9/16[vout]; [trimmed_music][speech]amix=inputs=2:duration=first[aout]" -map "[vout]" -map "[aout]" -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 192k final_output.mp4 What it does is: Get the duration of a speech.mp3 (...)

29 novembre

Piwik http://piwik.org/

• 21:51
  Lean Analytics in a Privacy-First Environment – Bootcamp with Timo Dechau - Daniel Crough Piwik
  In a recent bootcamp, Timo Dechau walked attendees through his approach to data and measurement in privacy-focused analytics environments. He demonstrates how to shift from a chaotic, ‘track-it-all’ mentality to a focused method that prioritizes quality over quantity. This post will summarize some of his key privacy-first analytics ideas, but be sure to check out the on-demand video for more detail.Watch the bootcamp on demand var gform;gform||(document.addEventListener("gform_main_scripts_loaded",function()gform.scriptsLoaded=!0),window.addEventListener("DOMContentLoaded",function()gform.domLoa -- Banking and Financial Services, GDPR, Marketing, Privacy, Videos, Featured Banking Content

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:06
  avcodec/ffv1enc: Add enum for qtable - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/ffv1enc: Add enum for qtable Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/ffv1enc.c [DH] libavcodec/ffv1enc.h [DH] libavcodec/ffv1enc_vulkan.c
• 01:28
  avformat/iamf_parse: reject ambisonics mode > 1 - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/iamf_parse: reject ambisonics mode > 1 ambisonics mode > 1 does not initialize any layer but layer 0 is unconditionally dereferenced Fixes: poc-2024-11 Fixes: null pointer dereference Found-by: 苏童 <220235212ⓐseu.edu.cn> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/iamf_parse.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 15:09
  ffmpeg -i desktop Output file does not contain any stream [closed] - Antonio Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to screen record a remote Windows VM machine which I'm accessing through ssh. I'm executing this command ffmpeg -f gdigrab -framerate 30 -i desktop -t 00:00:10 output.mp4 which is returning the following error: ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers built with gcc 14.2.0 (Rev1, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --en able-iconv --enable-gnutls --enable-libxml2 --enable-gmp (...)
• 23:31
  Converting HLS Stream to stream supported by old radio - Alberto Faenza Newest 'ffmpeg' Questions - Stack Overflow
  I have an old internet radio that does not support HLS streams. Therefore I cannot listen to my favourite radio at this url: https://streamcdnf31-4c4b867c89244861ac216426883d1ad0.msvdn.net/radiodeejay/radiodeejay/master_ma.m3u8 I found a solution using a paid software https://minimradio.com/ which is based on minimserver and minimstreamer. This solution works if I install mininmserver and minimstreamer on a local computer and use the internet radio to point to the converter stream but I will have to pay if I want to use this. Checking the documentation of minimradio (...) -- https://streamcdnf31-4c4b867c89244861ac216426883d1ad0.msvdn.net/radiodeejay/radiodeejay/master_ma.m3u8, https://minimradio.com/, http://192.168.1.9:10000
• 17:04
  Python Discord Music Bot: Playing next song while current song is playing - Deltrac Newest 'ffmpeg' Questions - Stack Overflow
  I've been working on a discord bot for me and my friends and I got it working 90% of the time. I noticed that, on some occasions the bot will be playing a song and it will stop playing the song and just move to the next song. I'm not sure what is causing this directly, but my assumption is that it's because of how I am handling my "play" command and the "play_next" command as well. I've tried basically everything that I could think of (re-arrange the code, change functionality, etc.). I am not too skilled at Python so my expertise is limited in this field  (...)
• 06:20
  node.js fluent-ffmepg with createWriteStream fails - Node.JS Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use fluent-ffmpeg node package with createReadStream and createWriteStream. However, if I replace this line: .output(fs.createWriteStream('assets/transcode-video.mp4'), end: true) I write this .output('assets/transcode-video.mp4', end: true) it works. But I literally followed the documentation. I appreciate any help or hint. const fs = require('fs'); const ffmpeg = require("fluent-ffmpeg"); const logger = console; const options = timeout: 60, // seconds  (...) -- documentation, My repository for complete code
• 05:37
  Trying to get pixels from a transparent AVI file to use them in a Raylib image but AVFrame comes out - Kolt Penny Newest 'ffmpeg' Questions - Stack Overflow
  I was trying to open a video file with FFmpeg's API using C++. So far all the steps up until calling av_read_frame has no errors: avformat_open_input, avformat_find_stream_info, avcodec_find_decoder, avcodec_alloc_context3 ,avcodec_parameters_to_context and avcodec_open2 pass the error checking. AVFrame* av_frame and AVPacket* av_packet are correctly allocated. This following code is where I do the rest of the checks, to get the pixel data: int bufferSize = av_codec_ctx->width * av_codec_ctx->height * 4; unsigned char* data = new unsigned (...)

28 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 22:17
  lavc/vvc: Fix scaling matrix DC coef derivation - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Fix scaling matrix DC coef derivation In 7.4.3.20 of H.266 (V3), there are two similarly-named variables: scalingMatrixDcPred and ScalingMatrixDcRec. The old code set ScalingMatrixDcRec, rather than scalingMatrixDcPred, in the first two branches of the conditions on scaling_list_copy_mode_flag[id] and aps->scaling_list_pred_mode_flag[id]. This could lead to decode mismatches in sequences with explicitly-signalled scaling lists. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] (...)
• 03:41
  avformat/mov: use dvdclut for YUV to RGB conversion of DVD subtitle palettes - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: use dvdclut for YUV to RGB conversion of DVD subtitle palettes Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] libavformat/Makefile [DH] libavformat/mov.c
• 22:17
  lavc/vvc: Use second definition of MinQtLog2SizeIntraC if relevant - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Use second definition of MinQtLog2SizeIntraC if relevant MinQtLog2SizeIntraC is usually (eq. (51) from VVCv3) defined as sps_log2_diff_min_qt_min_cb_intra_slice_chroma + MinCbLog2SizeY However, in the case ph_log2_diff_min_qt_min_cb_intra_slice_chroma is present, it is instead (eq. (83) from VVCv3) defined as ph_log2_diff_min_qt_min_cb_intra_slice_chroma + MinCbLog2SizeY When ph_log2_diff_max_bt_min_qt_intra_slice_chroma and ph_log2_diff_max_tt_min_qt_intra_slice_chroma are present, so is ph_log2_diff_min_qt_min_cb_intra_slice_chroma, and so we should use the second definition (...)
• 22:17
  lavc/vvc: Don't check motion estimation region for IBC - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Don't check motion estimation region for IBC The final parameter of check_available determines whether the motion estimation region constraints imposed in section 8.5.2.3 of H.266 (V3) on MVP candidates apply to the current candidate or not. In the case of IBC spatial merge candidates they do not, as their availability is dependent only on the criteria described in sections 8.6.2.3 and 6.4.4, which do not include this constraint on the motion estimation region. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] (...)
• 22:17
  lavc/vvc: Store MIP information over entire CU area - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Store MIP information over entire CU area Previously, the code only stored the MIP mode and transpose flag in the relevant tables at the top-left corner of the CU. This information ends up being retrieved in ff_vvc_intra_pred_* not based on the CU position but instead the transform unit position (specifically, using the x0 and y0 from get_luma_predict_unit). There might be multiple transform units in a CU, hence the top-left corner of the transform unit might not coincide with the top-left corner of the CU. Consequently, we need to store the MIP information at all positions in (...)
• 22:17
  lavc/vvc: Fix derivation of LmcsMaxBinIdx - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Fix derivation of LmcsMaxBinIdx Per H.266 (V3) section 7.4.3.19, LmcsMaxBinIdx is set equal to 15 - lmcs_delta_max_bin_idx. The previous code instead had it equal to 15 - lmcs_min_bin_idx. This could cause decoder mismatches. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/ps.c
• 22:17
  lavc/vvc: Fix overflow in MVD derivation - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Fix overflow in MVD derivation H.266 (V3) section 7.4.12.8: "The value of lMvd[ compIdx ] shall be in the range of −2^17 to 2^17 − 1, inclusive." Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/ctu.c
• 19:52
  swscale/ppc: disable YUV2RGB AltiVec acceleration - Sean McGovern git.videolan.org Git - ffmpeg.git/rss log
  swscale/ppc: disable YUV2RGB AltiVec acceleration The FATE test 'checkasm-sw_yuv2rgb' currently fails on this platform, in both little- and big-endian configurations with AltiVec enabled. Disable it for the time being. Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libswscale/ppc/yuv2rgb_altivec.c
• 05:28
  doc/demuxers/dvdvideo: seeking is supported, remove outdated statement - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  doc/demuxers/dvdvideo: seeking is supported, remove outdated statement Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] doc/demuxers.texi

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 14:33
  LibAV cannot find hardware acceleration but ffmpeg does. compiled using vcpkg [closed] - CottonBuds Newest 'ffmpeg' Questions - Stack Overflow
  I'm new to ffmpeg and I've been specifically using libav as a library for C++. I'm having troubles with libav not finding "qsv" as hardware acceleration even though I compiled ffmpeg with "qsv". ffmpeg.exe is working normally and can see "qsv" but not my program that uses libav libraries. I compiled it on Windows using vcpkg. Here are some screenshots Here ffmpeg.exe can see it when I run this code output: it cant see it Here is my CMakeLists.txt: cmake_minimum_required (VERSION 3.12) project (...) -- , ,
• 17:25
  Icecast status page not showing Server Name, Server Description, Stream Name, or Stream Description - Daniel Torridon Newest 'ffmpeg' Questions - Stack Overflow
  I have PHP streaming MP3 files listed in playlist.txt to Icecast using FFMpeg. $ffmpeg_command = "ffmpeg -re -f concat -safe 0 -stream_loop -1 -i /var/www/html/media/radio/playlist.txt -c:a libmp3lame -b:a 128k -f mp3 -ice_name \\"My Name\\" -ice_description \\"My Description\\" -metadata title=\\"My Title\\" -metadata artist=\\"My Artist\\" -metadata genre=\\"My Genre\\" -headers \\"Icy-MetaData: 1\\" icecast://source:Passwordⓐ99.99.99.99:8000/stream > /dev/null 2>&1 &"; The stream plays correctly, but the Admin and Public status pages for Icecast show the Server Name, Server (...)
• 10:51
  discord.player ffmpeg process 12040 successfully terminated with return code of 1 - morichh Newest 'ffmpeg' Questions - Stack Overflow
  code: ⓐclient.tree.command() async def play(interaction: Interaction, url: str): global voice channel = interaction.user.voice.channel voice = get(client.voice_clients, Guild=interaction.guild) if voice and voice.is_connected(): await voice.move_to(channel) await interaction.response.send_message(f"error") else: voice = await channel.connect() await interaction.response.send_message(f"joined") voice.play(discord.FFmpegPCMAudio(executable="C:/ffmpeg/bin/ffmpeg.exe", source = url)) error: 2022-12-10 19:32:48 INFO (...)
• 10:09
  Discord bot not playing any audio and immediately terminates once joined channel (Python) - MrPwnageLegend Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a small discord bot for me and my friends. Currently, I tried several examples online for a music bot using ffmpeg. I added the path to environment variables as well. I simplified the code to make it easier to debug. Below is the code: voice_client = await msg.author.voice.channel.connect() print(voice_client.is_playing()) FFMPEG_OPTIONS = 'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5','options': '-vn' voice_client.play(discord.FFmpegPCMAudio(source="test.mp3", (...)
• 10:03
  Using FFMPEG command to read the frame and show using the inshow function in opencv - HARSH BHATNAGAR Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to get the frame using the ffmpeg command and show using the opencv function cv2.imshow(). This snippet gives the black and white image on the RTSP Stream link . Output is given below link [ output of FFmpeg link]. I have tried the ffplay command but it gives the direct image . i am not able to access the frame or apply the image processing. Output of FFMPEG import cv2 import subprocess as sp command = [ 'C:/ffmpeg/ffmpeg.exe', '-i', 'rtsp://192.168.1.12/media/video2', '-f', 'image2pipe',  (...) -- Output of FFMPEG

27 novembre

Piwik http://piwik.org/

• 21:48
  Four Trends Shaping the Future of Analytics in Banking - Daniel Crough Piwik
  While retail banking revenues have been growing in recent years, trends like rising financial crimes and capital required for generative AI and ML tech pose significant risks and increase operating costs across the financial industry, according to McKinsey’s State of Retail Banking report. Today’s financial institutions are focused on harnessing AI and advanced analytics to make their data work for them. To be up to the task, analytics solutions must allow banks to give consumers the convenient, personalised experiences they want while respecting their privacy. In this article, we’ll (...) -- Banking and Financial Services

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 17:13
  avformat/dvdvideodec: check return code of ff_dvdclut_yuv_to_rgb() - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  avformat/dvdvideodec: check return code of ff_dvdclut_yuv_to_rgb() Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] libavformat/dvdvideodec.c
• 02:09
  avformat/dvdvideodec: fix missing last chapter marker due to off-by-one - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  avformat/dvdvideodec: fix missing last chapter marker due to off-by-one When using fast chapter marker calculation (default), the last marker is inadverdently ignored due to an off-by-one. Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] libavformat/dvdvideodec.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:58
  High quality screen capture using ffmpeg on wayland [closed] - Charlie Benger-Stevenson Newest 'ffmpeg' Questions - Stack Overflow
  Running hyprland/wayland on arch. I want a reasonable quality (for say youtube) screen capture. ffmpeg -device /dev/dri/card1 -re -f kmsgrab -i - -vf 'hwmap=derive_device=vaapi,hwdownload,format=bgr0' -s 1920x1080 -c:v mpeg2video -b:v 1M -t 5 ~/Recordings/screencap.avi This should set a bitrate of 1M but the output is super blocky with a much lower bitrate than specified by the b:v flag. What am I doing wrong?

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:18
  vulkan/common: Fix off-by-one error in flush_put_bits - IndecisiveTurtle git.videolan.org Git - ffmpeg.git/rss log
  vulkan/common: Fix off-by-one error in flush_put_bits If caller wrote a divisible by eight number of bits it would write an extra byte. Also increment by to_write instead of BUF_BYTES which overly pads the bitstream. [DH] libavcodec/vulkan/common.comp
• 19:18
  vulkan/common: Use u32vec2 buffer type instead of u64 - IndecisiveTurtle git.videolan.org Git - ffmpeg.git/rss log
  vulkan/common: Use u32vec2 buffer type instead of u64 According to the GL_EXT_buffer_reference spec alignment "must be a power of two and be greater than or equal to the largest scalar/component type in the block." This means by using u32vec2 we can drop the requirement alignment from 8 bytes to 4 bytes and save a pack64 call in reverse8 (though I assume in most ISAs that compiles to nothing) Allows the vc2 vulkan encoder to function without setting PB_UNALIGNED [DH] (...)
• 19:18
  vulkan/common: Add put_bytes_count - IndecisiveTurtle git.videolan.org Git - ffmpeg.git/rss log
  vulkan/common: Add put_bytes_count [DH] libavcodec/vulkan/common.comp
• 15:51
  vulkan_decode: ensure there's at least one context per decode thread - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_decode: ensure there's at least one context per decode thread Otherwise, what may happen is that 2 threads will both write into the same context. [DH] libavcodec/vulkan_decode.c
• 15:28
  vulkan_decode: fix counting for parallelism - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_decode: fix counting for parallelism ff_vk_exec_pool_init used to multiply the number by the number of queues, but that got changed, yet this use of the function was not updated. [DH] libavcodec/vulkan_decode.c
• 15:36
  vulkan: fix use of atomics for the current context index - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: fix use of atomics for the current context index The code used to use atomic, but over time, this got broken. This commit also remmoves the is-the-last-submission-ready shortcut, which rarely did anything. There's also value in relying on the fact that contexts always carry their frames in a strictly incremental order with no gaps. [DH] libavutil/vulkan.c [DH] libavutil/vulkan.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 13:55
  Cutting multimedia files based on start and end time using ffmpeg - Kalaiyarasan Newest 'ffmpeg' Questions - Stack Overflow
  I tried to cut the video using the start and end time of the video by using the following command: ffmpeg -ss 00:00:03 -t 00:00:08 -i movie.mp4 -acodec copy -vcodec copy -async 1 cut.mp4 By using the above command I want to cut the video from 00:00:03 to 00:00:08. But it is not cutting the video between those times instead of that it is cutting the video with first 11 seconds.
• 08:09
  Trying to get pixels from a transparent AVI file to use them in a Raylib image but AVFrame comes out empty - Kolt Penny Newest 'ffmpeg' Questions - Stack Overflow
  I was trying to open a video file with FFmpeg's API using C++. So far all the steps up until calling av_read_frame has no errors: avformat_open_input, avformat_find_stream_info, avcodec_find_decoder, avcodec_alloc_context3 ,avcodec_parameters_to_context and avcodec_open2 pass the error checking. AVFrame* av_frame and AVPacket* av_packet are correctly allocated. This following code is where I do the rest of the checks, to get the pixel data: int bufferSize = av_frame->width * av_frame->height * 4; unsigned char* data = new unsigned (...) -- packet showing no data, but has size
• 04:04
  How to write H264 raw stream into mp4 using ffmpeg directly - Yelsin Newest 'ffmpeg' Questions - Stack Overflow
  I want to wrap the H264 Nalus(x264 encoded) into mp4 using ffmpeg(SDK 2.1), but the output mp4 file could not play. I don't know how to set the pts and dts. Here's my code, using the code from Raw H264 frames in mpegts container using libavcodec and muxing.c from www.ffmpeg.org. My H264 stream has no B-Frame, every nalu starts with 00 00 00 01,the stream begins with sps pps then the h264 data. #include "stdafx.h" #include #include #include "Stream2Mp4.h" #include #include #include #include #include #include (...)

26 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:08
  avformat/smush: read ANIMv2 a/v parameters - Manuel Lauss git.videolan.org Git - ffmpeg.git/rss log
  avformat/smush: read ANIMv2 a/v parameters SMUSH ANIM files with subversion 2 provide additional fields for framerate and samplerate, use them if available, otherwise default to 12 fps which is the default for almost all ANIMv2 since 1995. Fixes the too-fast playback of test files from LucasArts games released 1995-1997. It was not noticed since Audio for those isn't decoded by ffmpeg. Signed-off-by: Manuel Lauss <manuel.laussⓐgmail.com> Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] (...)
• 19:38
  MAINTAINERS: Lauri is still available but is really low on time nowadays - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  MAINTAINERS: Lauri is still available but is really low on time nowadays CC: Lauri Kasanen <candⓐgmx.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] MAINTAINERS
• 22:43
  doc/infra: List at what companies the name servers are hosted and who provides the... - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  doc/infra: List at what companies the name servers are hosted and who provides the servers Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/infra.txt

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 04:11
  How to Dynamically Control FFmpeg Encoding Bitrate Based on Current Network Bandwidth? [closed] - Stove Fire Newest 'ffmpeg' Questions - Stack Overflow
  I’ve implemented a program using FFmpeg where the server encodes OpenGL render results and sends them to the client. The client then decodes the video and renders the result onto a texture using OpenGL. What I’m trying to achieve is to adjust the encoding bitrate dynamically based on the current network bandwidth — higher bandwidth results in higher bitrate encoding, and lower bandwidth results in lower bitrate encoding. I use libx264 encoder and rtsp. I found the iperf tool online, which is useful for measuring network bandwidth, but it is a command-line tool and does not have a (...)

25 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:26
  avutil/tests/color_utils: clean up slightly (cosmetic) - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avutil/tests/color_utils: clean up slightly (cosmetic) Rewrite this test slightly to fix the formatting, improve the readability of the output, and eliminate some unnecessary branching. [DH] libavutil/tests/color_utils.c [DH] tests/ref/fate/color_utils
• 12:07
  avutil/csp: eliminate redundant branch - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avutil/csp: eliminate redundant branch [DH] libavutil/csp.c
• 10:45
  avutil/csp: fix documentation of av_csp_trc_function - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avutil/csp: fix documentation of av_csp_trc_function This explanation was inaccurate and highly misleading. The new wording is taken more or less directly from ITU-T H.273, and also matches my understanding of these functions. [DH] libavutil/csp.h
• 12:35
  avutil/csp: add av_csp_trc_inv_from_id() - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avutil/csp: add av_csp_trc_inv_from_id() Mathematical inverse of av_csp_trc_from_id(), plus testing to make sure it roundtrips correctly with the corresponding TRC. [DH] doc/APIchanges [DH] libavutil/csp.c [DH] libavutil/csp.h [DH] libavutil/tests/color_utils.c [DH] libavutil/version.h [DH] tests/ref/fate/color_utils
• 12:52
  avutil/csp: add EOTF function definitions - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avutil/csp: add EOTF function definitions The existing av_csp_trc_func_from_id() mostly implements the OETF, except for PQ. As such, we are currently missing a precise definition of an ITU-R EOTF. Introduce the new functions av_csp_itu_eotf() and av_csp_itu_eotf_inv(), to fill this void. Note that this is not possible in all cases, e.g. AVCOL_TRC_LOG which has no corresponding EOTF definition in any ITU-R standard. Note that we cannot implement the proper HLG and SMPTE 428 OOTFs without access to all three color channels, because they are not independent per channel. As a result, we need (...)
• 13:10
  avutil/tests/color_utils: add tests for av_csp_itu_eotf - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avutil/tests/color_utils: add tests for av_csp_itu_eotf [DH] libavutil/tests/color_utils.c [DH] tests/ref/fate/color_utils
• 03:18
  lavfi/qsvvpp: Copy frame props before modify it - Fei Wang git.videolan.org Git - ffmpeg.git/rss log
  lavfi/qsvvpp: Copy frame props before modify it The changes to output frame props in query_frame overlapped since 578ac59887. Move the copy frame props before the changes. Signed-off-by: Fei Wang <fei.w.wangⓐintel.com> [DH] libavfilter/qsvvpp.c
• 04:48
  avfilter/scale_vt: implement negative width/height aspect ratio sizing - Koushik Dutta git.videolan.org Git - ffmpeg.git/rss log
  avfilter/scale_vt: implement negative width/height aspect ratio sizing Signed-off-by: Koushik Dutta <koushdⓐgmail.com> Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] libavfilter/vf_scale_vt.c
• 04:48
  avfilter/scale_vt: implement frame crop - Koushik Dutta git.videolan.org Git - ffmpeg.git/rss log
  avfilter/scale_vt: implement frame crop The crop filter has no effect on scale_vt: -vf crop=100:100,scale_vt=300x300 Hardware frames (AV_PIX_FMT_FLAG_HWACCEL) are expected to use the crop_* properties, as seen in the implementation vf_crop.c. Signed-off-by: Koushik Dutta <koushdⓐgmail.com> Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] libavfilter/vf_scale_vt.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:36
  How to send RTP stream to Janus from NGINX RTMP module? [closed] - Matéo Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a stream and display it in a browser. I have already configured NGINX with the rtmp module and my stream works very well with HLS (between 5 and 10 seconds of latency). Now I would like to set up a low-latency stream and that's why I have installed the janus-gateway webRTC server that allows to take in input an RTP stream and provide in output a webRTC stream. Here's the schema I'd like to follow : OBS -> RTMP -> Nginx-rtmp-module -> ffmpeg -> RTP -> Janus -> webRTC -> Browser But I have a problem with this part : (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 02:38
  avformat/mov: add missing stts array syncing in mov_build_index - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: add missing stts array syncing in mov_build_index Also fix checks for sc->stts_count that assume it may not be in sync with sample count. Missed in 865c73c86f9d9d167be7e41ad6cef71eba92dadd. Fixes parsing durations in some cases. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/mov.c [DH] tests/ref/fate/enhanced-flv-hevc [DH] tests/ref/fate/matroska-dovi-write-config8

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 10:35
  Why did this bat script delete all my files? [closed] - YaBoyShredderson Newest 'ffmpeg' Questions - Stack Overflow
  I don't know anything about .bat scripting, but my needs were pretty basic. Go through a folder and sort the videos into folders based on resolution. I have asked chatgpt to create these types of simple scripts for me before, but this time it went very wrong. In hindsight, I obviously should have tested it first, but it appears to have deleted almost all of my files. Why did this happen, and is it possible it moved them somewhere else, if so where? ⓐecho off :: Prompt user for the path set /p "folder=Enter the folder path: " :: Check if the folder exists if (...)
• 14:46
  Replace silence in audio using ffmpeg.wasm - blueseal Newest 'ffmpeg' Questions - Stack Overflow
  I have a use case where I have to shorten silences which are longer than 2 seconds and shrink them to 1 second in ffmpeg wasm I can remove silences which are longer than 2 seconds but couldn't shrink them. const silenceDuration = 2; await ffmpeg.run( "-i", inputFileName, "-af", `silenceremove=stop_periods=-1:stop_duration=$silenceDuration:stop_threshold=-30dB`, outputFileName, ) any idea how to achieve this in ffmpeg wasm? Thank (...) -- ffmpeg wasm

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 13:27
  avfilter/vf_scale: fix off-by-one in loop bounds - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  avfilter/vf_scale: fix off-by-one in loop bounds Results in over-read of the array. Fortunately, the excess element was never actually used, but it still triggers ASAN (and could in theory trigger a segfault). Fixes: 04ce01df0bb2d66e143bcfcea439afc2a1b8d96e [DH] libavfilter/vf_scale.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:41
  Read sample encrypted AAC with FFmpeg - rdrmntn Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to open a sample encrypted AAC file (packed audio) using FFmpeg APIs. I can open an unencrypted AAC file using AVFormatContext* iContext = nullptr; avformat_open_input(&iContext, mediaFileName.c_str(), nullptr, nullptr); I'm also able to open a sample encrypted fmp4 segment using AVDictionary *options = nullptr; av_dict_set(&options, "decryption_key", ssKey.str().c_str(), 0); AVFormatContext* iContext = nullptr; int ret = avformat_open_input(&iContext, mediaFileName.c_str(), nullptr, &options); But (...)
• 13:17
  close the running application in vb.net from background - TOM Newest 'ffmpeg' Questions - Stack Overflow
  i want to stop the running (ffmpeg) process from background . i use the process.kill() i wrote the code . but in this process the output file is getting corrupted. Dim pProcess() As Process = Process.GetProcesses For Each p As Process In pProcess If p.ProcessName = "ffmpeg" Then p.WaitForExit(1000) p.Kill() p.Close() End If Next is there any other method to terminate the process without file being corrupt  (...)
• 02:51
  Double speed playback with ffpmeg+nginx [closed] - chunjie yang Newest 'ffmpeg' Questions - Stack Overflow
  I want to achieve 2x playback speed. There is a streaming service A, and I want to set up a streaming server B locally to obtain streams from A and play them at 2x speed. In order to achieve this function, first use the command to make server A push the stream at twice the speed. After the local server B removes the stream, use the following command to transcode and play it. However, it is found that the stream is too laggy. I don't know why. The command is as follows: Transcoding: ffmpeg -re -i 'http://ServerAPlaybackUrl' \\ -filter_complex (...)

24 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:50
  hwcontext_vulkan: add support for AV_PIX_FMT_GBRAP10/12/14 - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: add support for AV_PIX_FMT_GBRAP10/12/14 [DH] libavcodec/vulkan/ffv1_enc_rct.comp [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/vulkan.c
• 16:05
  hwcontext_vulkan: require storage properties to claim formats as supported - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: require storage properties to claim formats as supported This function dates back a long time ago, before vkfmt_from_pixfmt2. When it was converted over, the thought was that this was far too restrictive to demand storage images for each format. With the new clever function, it makes sure to check that the compatible subformats a format can be used as support storage capabilities. This gets rid of fake support for RGB48/RGB96 which some implementations offer but don't support using as storage images. [DH] (...)
• 16:08
  hwcontext_vulkan: take disable_multiplane into account when checking for formats - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: take disable_multiplane into account when checking for formats [DH] libavutil/hwcontext_vulkan.c
• 16:28
  vulkan: zero out AVBufferRef in case of failure - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: zero out AVBufferRef in case of failure This resulted in uninit errors and was never caught as we generally did not use massive allocations before. [DH] libavutil/vulkan.c
• 16:29
  vulkan: only wait for fences on uninit if the context had a submission - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: only wait for fences on uninit if the context had a submission This fixes a potential deadlock on exit. [DH] libavutil/vulkan.c
• 14:55
  ffv1enc: expose ff_ffv1_encode_buffer_size - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc: expose ff_ffv1_encode_buffer_size The function is quite important to ensure that the output is always going to be sufficient, and it can change version to version, so exposing it makes sense. [DH] libavcodec/ffv1enc.c [DH] libavcodec/ffv1enc.h [DH] libavcodec/ffv1enc_vulkan.c
• 15:20
  ffv1enc_vulkan: limit parallelism based on VRAM, fallback to host memory - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: limit parallelism based on VRAM, fallback to host memory [DH] libavcodec/ffv1enc_vulkan.c
• 17:24
  avcodec/ac3dec: fix downmix logic for eac3 - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/ac3dec: fix downmix logic for eac3 Ensure downmixed is only set once during init, as it used to be. Fixes a regression since acbb2777e28c. Fixes ticket #11321 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/ac3dec.c
• 21:21
  swscale/internal: fix typo in loongarch specific code - Marvin Scholz git.videolan.org Git - ffmpeg.git/rss log
  swscale/internal: fix typo in loongarch specific code Regression from 2d077f9acda4946b3455ded5778fb3fc7e85bba2 [DH] libswscale/loongarch/swscale_init_loongarch.c
• 20:49
  MAINTAINERS: Add myself as Darwin maintainer - Marvin Scholz git.videolan.org Git - ffmpeg.git/rss log
  MAINTAINERS: Add myself as Darwin maintainer I do some development and usage of FFmpeg regularly on macOS and sent some patches to fix issues specific to Darwin in the past so I think it makes sense to add myself as maintainer so people know they can ping me if required, for Darwin specific issues/testing. I have both Intel and Apple Silicon (aarch64) machines as well as older Macs for testing on older macOS versions if necessary. [DH] MAINTAINERS
• 20:13
  MAINTAINERS: Remove Guillaume Poirier and Romain Dolbeau - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  MAINTAINERS: Remove Guillaume Poirier and Romain Dolbeau Guillaume no longer has a PPC Romain has no time CC: Guillaume POIRIER <poiriergⓐgmail.com> CC: Romain Dolbeau <romainⓐdolbeau.org> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] MAINTAINERS
• 23:24
  avcodec/audiotoolboxdec: set set keyframe flag in output frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/audiotoolboxdec: set set keyframe flag in output frames Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/audiotoolboxdec.c
• 23:24
  avcodec/audiotoolboxnec: set set keyframe flag in output packets - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/audiotoolboxnec: set set keyframe flag in output packets Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/audiotoolboxenc.c
• 23:25
  avcodec/mediacodecdec: set set keyframe flag in output frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mediacodecdec: set set keyframe flag in output frames Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/mediacodecdec_common.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:40
  FFmpeg loading tracker files - Atlas Sullivan Newest 'ffmpeg' Questions - Stack Overflow
  So, after poking around a bit, I discovered that ffmpeg may have the ability to load tracker files (like *.mod, *.xm *.it *s3m et cetera) via the power of libopenmpt. The question is, how do I do this if it's possible? -- libopenmpt
• 20:23
  How to convert an mp4 file to mp3 using FFMpegCore? - Simon Newest 'ffmpeg' Questions - Stack Overflow
  How can I convert an mp4 video to mp3, using the nuget-package FFMpegCore in a C# Project (.NET 8)? public void ConvertViaFFMpegCore(string sourcePath, string targetPath) FFMpegArguments .FromFileInput(sourcePath) .OutputToFile(targetPath, false, options => options .WithVideoCodec(VideoCodec.???) // <- ??? .WithConstantRateFactor(21) .WithAudioCodec(AudioCodec.???) // <- ??? .WithVariableBitrate(4) .WithVideoFilters(filterOptions => filterOptions .Scale(VideoSize.Hd)) .WithFastStart())  (...) -- FFMpegCore
• 18:59
  Using ffmpeg to obtain video durations in python - OSK Newest 'ffmpeg' Questions - Stack Overflow
  I've installed ffprobe using the pip ffprobe command on my PC, and installed ffmpeg from here. However, I'm still having trouble running the code listed here. I try to use the following code unsuccessfully. SyntaxError: Non-ASCII character '\\xe2' in file GetVideoDurations.py on line 12, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details Does anyone know what's wrong? Am I not referencing the directories correctly? Do I need to make sure the .py and video files are in a specific location? import (...) -- here
• 19:12
  ffmpeg.wasm - How to do literally anything with a blob url - SeriousLee Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the ffmpeg.wasm for the first time and I can't get anything working, beyond loading it. I have this function that does nothing in particular (I got it from the vite + react example in the docs, slightly modified) and all I want to do is pass it a blob URL like this blob:http://localhost:5173/c7a9ea7c-aa26-4f4f-9c80-11b8aef3e81f and run through the function and have it give me anything back. But instead, it hangs on the ffmpeg.exec command and never completes. And yes, I've determined that the input blob does work - it's an 8MB, 12-second long mp4 (...)
• 10:17
  How to stream MacOS desktop screen over local IP using ffmpeg or python or objective-C or Swift? - Akella Niranjan Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to build a service/application/script on MacBook that can help me share my desktop screen [Mirror my screen] over a local IP address. Or I want to display it on a webpage using flask framework using python. I just wish to look at my desktop screen along with the mouse movements on a web-browser, just like a Remote Desktop. I did try the following command, but when I try to open my browser and go to the IP address it just shows a blank screen sudo ffmpeg -f avfoundation -framerate 30 -pix_fmt uyvy422 -i "0" -listen 1 -f mp4 -movflags (...)

23 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 09:32
  avcodec/vvcdec: ensure every CTU belongs to a slice - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vvcdec: ensure every CTU belongs to a slice According to section 6.3.3 "Spatial or component-wise partitionings," CTUs should fully cover slices with no overlaps, gaps, or additions. No overlaps are ensured by task_init_parse. No gaps and no additions are ensured by this patch. Co-authored-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/thread.c
• 09:32
  avcodec/cbs_h266: check subpicture slices number - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_h266: check subpicture slices number According to section 6.3.3, 'Spatial or component-wise partitionings,' Subpictures must cover the entire picture. Therefore, the total number of subpicture slices should equal the number of picture slices Co-authored-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/cbs_h266_syntax_template.c
• 09:32
  avcodec/cbs_h266: stricter validation for subpicture's max width and height - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_h266: stricter validation for subpicture's max width and height Co-authored-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/cbs_h266_syntax_template.c
• 09:32
  avcodec/cbs_h266: improve readability in subpicture parser - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cbs_h266: improve readability in subpicture parser [DH] libavcodec/cbs_h266_syntax_template.c
• 09:32
  avcodec/vvcdec: inter_data, check the return value from hls_merge_data - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vvcdec: inter_data, check the return value from hls_merge_data Reported-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/ctu.c
• 09:32
  avcodec/vvcdec: misc, reformat inter_data() - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vvcdec: misc, reformat inter_data() [DH] libavcodec/vvc/ctu.c
• 09:32
  avcodec/vvcdec: schedule next stage only if the current stage reports no error - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vvcdec: schedule next stage only if the current stage reports no error If the current stage reports an error, some variables may not be correctly initialized. Scheduling the next stage could lead to the use of uninitialized variables. [DH] libavcodec/vvc/thread.c
• 09:32
  avcodec/vvcdec: return error if CTU size > 128 - Nuo Mi git.videolan.org Git - ffmpeg.git/rss log
  avcodec/vvcdec: return error if CTU size > 128 The v3 spec reserves CTU size 256. Currently, we use an uint8_t* table to hold cb_width and cb_height. If a CTU size of 256 is not split, cb_width and cb_height will overflow to 0. To avoid switching to uint16_t, rejecting CTU size 256 provides a simple solution. [DH] libavcodec/vvc/ps.c
• 05:12
  tools/general_assembly: add a mechanism for excluding people from GA list - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  tools/general_assembly: add a mechanism for excluding people from GA list To be used at their own request, when they do not wish to receive vote emails. [DH] tools/general_assembly.pl
• 05:16
  tools/general_assembly: exclude Derek from GA emails - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  tools/general_assembly: exclude Derek from GA emails At his own request, he can remove the entry whenever he likes. [DH] tools/general_assembly.pl
• 18:03
  vulkan: only apply shortcut for next context selection if selection has a submission - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: only apply shortcut for next context selection if selection has a submission [DH] libavutil/vulkan.c
• 18:03
  vulkan: add opaque field to execution contexts - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: add opaque field to execution contexts Helps keep track of what dispatch happened where. [DH] libavutil/vulkan.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:11
  ffmpeg - add music to an audiobook, and loop the music [closed] - Rhys Newest 'ffmpeg' Questions - Stack Overflow
  I found these example, and they all work. But I cannot overlay 2 audios and loop the shortest audio until the longest audio is finished. Audio to match Video Length ffmpeg -i VIDEO1.mp4 -stream_loop -1 -i bgmusic.mp3 -shortest -c:v copy -c:a aac -map 0:v:0 -map 1:a:0 output.mp4 Loop Audio ffmpeg -i audio.mp3 -filter_complex "aloop=loop=-1:size=10" output_loop.mp3 Overlay 2 Audios ffmpeg -y -i bgmusic.mp3 -i audio.mp3 -filter_complex "[0:0]volume=1.0[a];[1:0]volume=1.0[b];[a][b]amix=inputs=2:duration=longest" -c:a libmp3lame output.mp3 Here is (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 06:23
  fftools/ffmpeg_sched: rename mux_done_lock,cond into finish_* - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  fftools/ffmpeg_sched: rename mux_done_lock,cond into finish_* Their semantics will be changed in the following commit to not be limited to muxing. [DH] fftools/ffmpeg_sched.c
• 06:26
  fftools/ffmpeg_sched: signal the main thread when a task fails - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  fftools/ffmpeg_sched: signal the main thread when a task fails Avoids a useless -stats_period wait before exiting. Reported-by: names_are_hard [DH] fftools/ffmpeg_sched.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 16:32
  Multiple subtitle tracks on iOS with AVPlayer [closed] - Martin Paucot Newest 'ffmpeg' Questions - Stack Overflow
  I have a bunch of videos that are hosted on Vimeo. To allow users watching them on the mobile apps (Android & iOS) we use the m3u8 format given directly by Vimeo. It works great with expo-video as all our videos have transcript for different languages. I would like to allow the users to download videos so they can be watched offline. To achieve that I use ffmpeg to convert the .mp4 to .mkv and combine the .srt files. This solution works great on android, users can download videos and watch them offline with the ability to select subtitles. Unfortunately it seems that (...) -- expo-video, ffmpeg
• 06:08
  Generating a waveform using ffmpeg - krisph Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to generate a waveform image using ffmpeg. I have successfully made a waveform image, however it doesn't look very nice... I have been looking around to try and style the image to make it look nicer, however I have been unable to find any information on this or any tutorials on this. I am using PHP and shell_exec to create the waveform. I am aware that there are php library that can do this but due to file format this is a lengthy process. The code I am using is as follows: $command = 'convertvid\\bin\\ffmpeg (...)
• 06:45
  Cannot capture system audio with ffmpeg on windows 11 [closed] - Snykral fa Ashama Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to capture audio on ffmpeg. However, I only found how to capture microphone audio, which is useless to me. ffmpeg -f gdigrab -framerate 30 -i desktop -f dshow -i audio="Microphone" -c:v libx264 -preset fast -c:a aac -b:a 192k vid.mp4 How can I record system audio on Windows 11?
• 04:14
  FFMPEG Zoom pan to a particular coordinate x and y in a video - crysis Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to zoom-in in a video at a particular coordinatates x, y when video reaches at timestamp in duration. I'm using this command for the zoompan filter x = 784 y = 550 timestamp = 2 width = 1920 height = 1044 zoompan_filter = ( f"zoompan=z='if(between(in_time,timestamp,timestamp + 0.5)," f"1+2*(in_time-timestamp)," f"if(between(in_time,timestamp + 0.5,timestamp + 1)," f"2-2*(in_time-timestamp + 0.5),1))':" f"x='x-(iw/zoom/2)':y='y-(ih/zoom/2)':"  (...) --
• 00:14
  Extend Frame Size and Re-Encoding Video to be Blu-Ray Compliant with ffmpeg and tsMuxer - grendell Newest 'ffmpeg' Questions - Stack Overflow
  I have a media file with the following video stream: Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv, bt709), 1440x1080 [SAR 1:1 DAR 4:3], 23.98 fps, 23.98 tbr, 1k tbn (default) I am attempting to extend the frame size to 1920x1080 and re-encode the video with libx264 to create a Blu-ray compatible video stream. I am using the following command (video filter from here): ffmpeg -i original.mkv -c:v libx264 -preset veryslow -tune animation -profile:v high -crf 16 -pix_fmt yuv420p -vf (...)

22 novembre

Piwik http://piwik.org/

• 22:31
  A Quick Start Guide to the Payment Services Directive (PSD2) - Daniel Crough Piwik
  In 2023, there were 266.2 billion real-time payments indicating that the demand for secure transactions has never been higher. As we move towards a more open banking system, there are a host of new payment solutions that offer convenience and efficiency, but they also present new risks. The Payment Services Directive 2 (PSD2) is one of many regulations established to address these concerns. PSD2 is a European Union (EU) business initiative to offer smooth payment experiences while helping customers feel safe from online threats. In this post, learn what PSD2 includes, how it improves (...) -- Banking and Financial Services, Privacy

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 16:04
  hwcontext_vulkan: add support for AV_PIX_FMT_GRAY10/12/14 - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: add support for AV_PIX_FMT_GRAY10/12/14 [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/vulkan.c
• 17:00
  MAINTAINERS: list csp.c and csp.h maintainers - Leo Izen git.videolan.org Git - ffmpeg.git/rss log
  MAINTAINERS: list csp.c and csp.h maintainers Ronald S. Bultje wrote most of the code before there was a refactor and condense (which I mostly wrote). As such, listing both him and myself as maintainers of csp.h and csp.h, which previously had no maintainer listed at all (after conferring on IRC). Signed-off-by: Leo Izen <leo.izenⓐgmail.com> [DH] MAINTAINERS

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:28
  FFmpeg: About filter_complex command - HJ Kim Newest 'ffmpeg' Questions - Stack Overflow
  I use this command. ffmpeg -i Input.mp4 -i logo.png -c:v h264_nvenc -filter_complex "[0:v]scale=-1:720[video];[1:v][video]scale2ref=(iw/ih)*ih/8/sar:ih/8[wm][base];[base][wm]overlay=10:10" output.mp4 But what does this mean? scale2ref=(iw/ih)*ih/8/sar:ih/8
• 11:06
  How is better to use ffmpeg with the ASP.NET Core, on Linux? - user8245660 Newest 'ffmpeg' Questions - Stack Overflow
  I've got the project (ASP.NET Core, on Linux) where are the several tasks, which relate to the video converting and extracting frames from the video file. I thought about the two possible options: using ffmpeg console utility using P/Invoke with the libavcodec library and others, which ffmpeg uses The second option is miles harder and may be very impractical, because it reminds me developing the new wrapper/library, instead of using the ready products. I've done googling, but there aren't well-done projects for the (...)

21 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 07:54
  libavcodec/mpeg12dec.c: support DVB CC format 0x0502 in user_data - Scott Theisen git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/mpeg12dec.c: support DVB CC format 0x0502 in user_data Reviewed-by: Marth64 <marth64ⓐproxyid.net> Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] libavcodec/mpeg12dec.c
• 00:54
  hwcontext_vulkan: add support for AV_PIX_FMT_GBRP12/14/16 - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: add support for AV_PIX_FMT_GBRP12/14/16 [DH] libavcodec/ffv1enc_vulkan.c [DH] libavcodec/vulkan/ffv1_enc_rct.comp [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/vulkan.c
• 18:56
  ffv1enc_vulkan: remove arbitrary limitation of the number of slices - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: remove arbitrary limitation of the number of slices [DH] libavcodec/ffv1enc_vulkan.c
• 13:09
  swscale: introduce new, dynamic scaling API - Niklas Haas git.videolan.org Git - ffmpeg.git/rss log
  swscale: introduce new, dynamic scaling API As part of a larger, ongoing effort to modernize and partially rewrite libswscale, it was decided and generally agreed upon to introduce a new public API for libswscale. This API is designed to be less stateful, more explicitly defined, and considerably easier to use than the existing one. Most of the API work has been already accomplished in the previous commits, this commit merely introduces the ability to use sws_scale_frame() dynamically, without prior sws_init_context() calls. Instead, the new API takes frame properties from the frames (...)
• 21:03
  avformat/mm: add fallthrough comment - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avformat/mm: add fallthrough comment Fixes CID 1634888 [DH] libavformat/mm.c
• 01:27
  avformat/mov: Populate packet duration using stts atom instead of guessing - Darren Mo git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: Populate packet duration using stts atom instead of guessing Fixes tickets #7855 and #11312. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/isom.h [DH] libavformat/mov.c [DH] tests/ref/fate/copy-trac236 [DH] tests/ref/fate/filter-fps [DH] tests/ref/fate/filter-fps-cfr [DH] tests/ref/fate/filter-meta-4560-rotate0 [DH] tests/ref/fate/gaplessenc-itunes-to-ipod-aac [DH] tests/ref/fate/matroska-dovi-write-config8 [DH] tests/ref/fate/matroska-non-rotation-displaymatrix [DH] tests/ref/fate/mov-aac-2048-priming [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:08
  FFmpeg wrong codecstring for DASH manifest [closed] - Suxsem Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a DASH stream with ffmpeg with the following command: ffmpeg -i rtsp://admin:***ⓐcamera-retro.lan/ch0_0 ^ -map 0 ^ -codec:v copy ^ -codec:a copy ^ -f dash ^ -use_template 1 ^ -use_timeline 1 ^ -window_size 50 ^ -extra_window_size 5 ^ -seg_duration 5 ^ tmp/output.mpd The problem is the generated manifest doesn't contain a valid codecstring for the video part (note the codecs="hev1" part) and thus is not playable by the browser: <?xml version="1.0" encoding="utf-8"?> Session (...)
• 14:30
  How do you convert fragmented MP4 to MP4 with ffmpeg and keep all fragments? [closed] - Lars Rönnbäck Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to convert a fragmented MP4 (fMP4) to a single MP4 file using ffmpeg. I expected the following command to work, but it only results in the initialization segment and the last three segments being processed by ffmpeg. I am using version 6.1.1 of ffmpeg. ffmpeg -i playlist.m3u8 -c copy complete.mp4 The content of the playlist is as follows. #EXT-X-VERSION:7 #EXT-X-TARGETDURATION:2 #EXT-X-MEDIA-SEQUENCE:0 #EXT-X-PLAYLIST-TYPE:EVENT #EXT-X-MAP:URI="segment_00000.mp4" #EXTINF:0.525000, segment_00001.m4s #EXTINF:2.000000, segment_00002.m4s
• 11:30
  FFMPEG ratio and SAR to 1 [closed] - Aurelien Stride Newest 'ffmpeg' Questions - Stack Overflow
  I have a video of 1280x720px with a SAR = 540:401. My purpose is, with FFMPEG, to set SAR to 1, and get a final resolution of 1280*534.
• 22:29
  Python ffmpeg: [WinError 2] The system cannot find the file specified [duplicate] - PeppersONLY Newest 'ffmpeg' Questions - Stack Overflow
  #what i did to install pip install ffmpeg-python #code import ffmpeg crop_dimensions = "640:480:0:0" input_file = "input.mp4" output_file = "output.mp4" ( ffmpeg .input(input_file) .filter("crop", *crop_dimensions.split(":")) .output(output_file, vcodec="libx264", crf=22) .overwrite_output() .run() ) Whenever I run this code, I get this error: hp, ht, pid, tid = _winapi.CreateProcess(executable, args, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ FileNotFoundError: [WinError 2] (...)
• 21:05
  Converting Multiple Videos from S3 into GIFs with Random Frames using Python and Lambda - rahulfaujdar Newest 'ffmpeg' Questions - Stack Overflow
  I have a collection of videos stored in an S3 bucket, and I'm looking to automate the process of converting these videos into GIFs using Python and Lambda. Each resulting GIF should be precisely 10 seconds long and should contain random frames sampled from different parts of the corresponding video. By random frames, I mean frames from the beginning, middle, and end of each video, creating a dynamic GIF experience. I've started implementing this functionality using ffmpeg within a Python Lambda function, but I'm encountering difficulties in achieving the desired (...)
• 21:05
  How to convert video(stored in S3) to image and upload it back to S3 bucket? - Leena Bharambe Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to perform below steps: Read video from S3 bucket Convert Video into images and upload images to S3 back I don't want to use any Local file system or don't want to store video/image in local disk. Running the code as an AWS Lambda function. In Java, How can we upload an image directly to S3 after framing a video? In Node, Can we pass s3 url to ffmpeg either to command line utility or a code module? Sharing some sample code which I am using to read video from S3: String (...)
• 15:27
  How to Record a Seekable Video File with Lossless Compression which is seekable while recording? [closed] - Christian Schaffner Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg to record a dshow device to a .mkv file. My goal is to use a lossless codec like H.264 or FFV1 for the best quality. Here’s the issue I’m encountering: In my application, the recorded file needs to be played in another application while recording is still in progress. While playback works, the file is not seekable because the index is written only after the recording ends. My question: Is there any way to record a video that remains seekable, even if the recording process is incomplete? I am open to low-filesize, uncompressed formats or other practical (...)
• 12:26
  How to Record a Seekable Video File with Lossless Compression wich is seekable while recording? - Christian Schaffner Newest 'ffmpeg' Questions - Stack Overflow
  I am using FFmpeg to record a dshow device to a .mkv file. My goal is to use a lossless codec like H.264 or FFV1 for the best quality. Here’s the issue I’m encountering: In my application, the recorded file needs to be played in another application while recording is still in progress. While playback works, the file is not seekable because the index is written only after the recording ends. My question: Is there any way to record a video that remains seekable, even if the recording process is incomplete? I am open to low-filesize, uncompressed formats or other practical (...)
• 08:20
  Ffmpeg for use in iOS application coded in Swift - Xavi Font Newest 'ffmpeg' Questions - Stack Overflow
  I have been browsing the web, even this website... bu cannot find a good option to implement ffmpeg functionality in an iOS application made in swift. Options looked at and reasons why they are not solutions: SwiftFFmpeg - I am not sure it can run on iOS, plus I don't see an option to run my desired Ffmpeg command. MobileFFmpeg - Not maintained anymore, and a new project by the same founders created a "better altenrative" called ffmpeg-kit. ffmpeg-kit - looks amazing, but their API only allows for interaction in the Objective-C language. Any solutions anyone (...)
• 08:58
  Problems using FFmpeg / libavfilter for adding overlay to grabbed frames - Michael Newest 'ffmpeg' Questions - Stack Overflow
  On Windows with latest FFmpeg / libav (full build, non-free) a C/C++ app reads YUV420P frames from a frame grabber card. A bitmap (BGR24) overlay image from file should be drawn on every frame for the first 20 seconds via libavfilter. First, the BGR24 overlay image becomes converted via format filter to YUV420P. Then the YUV420P frame from frame grabber and the YUV420P overlay frame are pushed into the overlay filter. FFmpeg / libavfilter does not report any errors or warnings in console / log. Trying to get the filtered frame out of the graph via (...)
• 06:51
  Is Replacing Dynamic Resolution with scale_amf in FFmpeg Command a Good Direction? - fred Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a Lua script for MPV that processes 360-degree videos using FFmpeg's v360 filter. The original command dynamically calculates the output resolution based on a res variable, like this: mp.command_native_async( "no-osd", "vf", "add", string.format( "ⓐvrrev:v360=%s:%s:reset_rot=1:in_stereo=%s:out_stereo=2d: id_fov=%s:d_fov=%.3f:yaw=%.3f:pitch=%s:roll=%.3f: w=%s*192.0:h=%.3f*108.0:h_flip=%s:interp=%s", in_flip, inputProjection, outputProjection, in_stereo, idfov, dfov, yaw, pitch, roll, res, res, h_flip, scaling ) , (...)

20 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 12:44
  configure: Add wasm as a fake arch - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  configure: Add wasm as a fake arch And add wasm simd128 flag, so we can add simd128 optimizations. It can be enabled by put -msimd128 to extra cflags. There is no runtime detection on simd128 support yet. I think that needs to be done with JavaScript. Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] Makefile [DH] configure [DH] ffbuild/arch.mak [DH] libavutil/cpu.c [DH] libavutil/cpu.h [DH] libavutil/cpu_internal.h [DH] libavutil/tests/cpu.c [DH] libavutil/wasm/Makefile [DH] (...)
• 12:45
  tests/checkasm: Add partial support for wasm - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  tests/checkasm: Add partial support for wasm WASI mssing signal and siglongjmp support. This patch workaround build error and add simd128 flag. Please note that many tests use large array on stack, so you need to increase the stack size when build checkasm, e.g., --extra-ldflags='-Wl,-z,stack-size=10485760' Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] tests/checkasm/checkasm.c [DH] tests/checkasm/checkasm.h
• 12:45
  avcodec/hevc: Add wasm simd128 idct - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avcodec/hevc: Add wasm simd128 idct Benchmark with wasmtime: wasmtime checkasm --test=hevc_idct --benchmark hevc_idct_4x4_8_c: 20.8 ( 1.00x) hevc_idct_4x4_8_simd128: 10.2 ( 2.02x) hevc_idct_4x4_10_c: 21.0 ( 1.00x) hevc_idct_4x4_10_simd128: 10.2 ( 2.05x) hevc_idct_8x8_8_c: 198.0 ( 1.00x) hevc_idct_8x8_8_simd128: 41.5 ( 4.77x) hevc_idct_8x8_10_c: 197.8 ( 1.00x) hevc_idct_8x8_10_simd128: 41.8 ( 4.74x) hevc_idct_16x16_8_c: 1385.2 ( 1.00x) hevc_idct_16x16_8_simd128: 291.8 ( 4.75x) hevc_idct_16x16_10_c: 1375.0 ( 1.00x) hevc_idct_16x16_10_simd128: 281.2 ( 4.89x) hevc_idct_32x32_8_c: 13479.0 ( (...)
• 07:35
  avformat/libssh: fix credential variables typo - Marth64 git.videolan.org Git - ffmpeg.git/rss log
  avformat/libssh: fix credential variables typo Signed-off-by: Marth64 <marth64ⓐproxyid.net> [DH] libavformat/libssh.c
• 07:10
  ffv1enc_vulkan: switch to receive_packet - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: switch to receive_packet This allows the encoder to fully saturate all queues the GPU has, giving a good 10% in certain cases and resolutions. This also improves error resilience if an allocation fails, and properly cleans up after itself if it does. [DH] libavcodec/ffv1enc_vulkan.c [DH] libavutil/vulkan_functions.h
• 18:36
  lavc/pixblockdsp: fix compilation for RV32IMA - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/pixblockdsp: fix compilation for RV32IMA [DH] libavcodec/riscv/pixblockdsp_init.c [DH] libavcodec/riscv/pixblockdsp_rvi.S
• 18:30
  lavu/float_dsp: fix compilation with RISC-V ILP32 ABI - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavu/float_dsp: fix compilation with RISC-V ILP32 ABI [DH] libavutil/riscv/float_dsp_rvv.S
• 18:16
  riscv: remove unnecessary #include's - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  riscv: remove unnecessary #include's [DH] libavcodec/riscv/ac3dsp_rvb.S [DH] libavcodec/riscv/ac3dsp_rvv.S [DH] libavcodec/riscv/ac3dsp_rvvb.S [DH] libavcodec/riscv/bswapdsp_rvb.S [DH] libavcodec/riscv/bswapdsp_rvv.S [DH] libavcodec/riscv/bswapdsp_rvvb.S [DH] libswscale/riscv/rgb2rgb_rvb.S
• 18:48
  lavc/h264idct: fix compilation for RV32IMA - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/h264idct: fix compilation for RV32IMA [DH] libavcodec/riscv/h264idct_rvv.S
• 18:37
  lavc/vp8dsp: fix compilation for RV32IMA - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/vp8dsp: fix compilation for RV32IMA [DH] libavcodec/riscv/vp8dsp_init.c [DH] libavcodec/riscv/vp8dsp_rvv.S
• 17:40
  avformat/mov: rename MOVCtts.duration to offset - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: rename MOVCtts.duration to offset The value is a timestamp offset, not a duration. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/isom.h [DH] libavformat/mov.c [DH] libavformat/movenc.c
• 14:45
  avformat/movenc: don't write PS NALUs in hvcC for codec tag hvc1 - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/movenc: don't write PS NALUs in hvcC for codec tag hvc1 array_completeness shall be 1 for those tracks. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/movenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:02
  How to HLS-live-stream incoming batches of individual frames, "appending" to a m3u8 playlist in real time, with ffmpeg? - Rob Newest 'ffmpeg' Questions - Stack Overflow
  My overall goal: Server-side: I have batches of sequential, JPEG-encoded frames (8-16) arriving from time to time, generated at roughly 2 FPS. I would like to host an HLS live stream, where, when a new batch of frames arrives, I encode those new frames as h264 .ts segments with ffmpeg, and have the new .ts segments automatically added to an HLS stream (e.g. .m3u8 file). Client/browser-side: When the .m3u8 is updated, I would like the video stream being watched to simply "continue", advancing from the point where new .ts segments have (...)
• 14:45
  Getting "Unrecognized option '1'" when using "-map_metadata -1" to erase metadata with ffmpeg [closed] - Nautilus Era Newest 'ffmpeg' Questions - Stack Overflow
  Edit: As said in the header, this question is not about programing and I will ask it on the appropriate Stack. My confusion came from the fact that I am using Python to make my calls to the shell, however, it has nothing to do with the problem I am trying to solve. Thank you for your time and sorry for the bother. I was trying to erase metadata from a file using ffmpeg using the following command: ffmpeg –i $file_path –map_metadata -1 –c copy $stripped_video_output Where $file_path and $stripped_video_output are variables containing their (...)
• 12:35
  problem with outputting decoded audio with ffmpeg c++ - anaconda57 Newest 'ffmpeg' Questions - Stack Overflow
  i am decoding a .mp4 file and want to play decoded raw audio with waveform-audio. it had some problems even tried double buffering but didnt work. it was glitchy and noisy. i tried gathering all the audio in one buffer but issue wasnt gone. SwrContext* swrCtx = nullptr; swr_alloc_set_opts2(&swrCtx, &paCodecCtx->ch_layout, AV_SAMPLE_FMT_FLT, paCodecCtx->sample_rate, &paCodecCtx->ch_layout, paCodecCtx->sample_fmt, paCodecCtx->sample_rate, 0, nullptr); swr_init(swrCtx); // Initialize the wave format based on decoded audio (...)
• 12:39
  FFMPEG Api conversion from YUV420P to RGB produces strange output - fasc8 Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the FFMPEG Api in Rust to get RGB images from video files. While some videos work correct and I get the frames back as expected, some work not. Or at least the result is not the way I expected it to be. The code I use in Rust: ffmpeg::init().unwrap(); let in_ctx = input(&Path::new(source)).unwrap(); let input = in_ctx .streams() .best(Type::Video) .ok_or(ffmpeg::Error::StreamNotFound)?; let decoder = input.codec().decoder().video()?; let scaler = Context::get( decoder.format(), decoder.width(),  (...) -- Weird result image, Comparison of the .ppm files

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 04:11
  ffv1enc_vulkan: increase max outstanding byte count to 16bit - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: increase max outstanding byte count to 16bit The issue is that at higher resolutions, the outstanding byte counter overflowed in case the image had a lot of blank areas. [DH] libavcodec/vulkan/rangecoder.comp
• 01:59
  ffv1enc_vulkan: fix PCM encoding - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: fix PCM encoding This line was mysteriously deleted. [DH] libavcodec/vulkan/ffv1_enc_setup.comp
• 04:17
  lavc/vulkan/common: fix reverse4's incorrect swizzle - Lynne git.videolan.org Git - ffmpeg.git/rss log
  lavc/vulkan/common: fix reverse4's incorrect swizzle The function is responsible for converting little to big endian. It had an incorrect swizzle for the last 2 bytes. [DH] libavcodec/vulkan/common.comp
• 04:46
  vulkan: fix sw_frame_deps counter - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: fix sw_frame_deps counter The code used as a basis was the buffer dependency code, where the counter was incremented after each buffer, but for the sw_frame dep API, we only support adding individual frames at a time. [DH] libavutil/vulkan.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 04:01
  FFmpeg: convert .mpg video to .mp4 without losing quality - reterius Newest 'ffmpeg' Questions - Stack Overflow
  How can I convert a .mpg video to .mp4 without losing quality? My attempts below: $INCPATH = dirname(__FILE__).'/'; $id = 99999; $ext = "MPG"; $input_dir = $INCPATH."../img/videos/".$id.".".$ext ; $output_dir2 = $INCPATH."../img/videos/".$id.".mp4" ; $q = '/usr/bin/ffmpeg -i '.$input_dir.' -c:v libx264 -c:a libfaac -r 30 '.$output_dir2." 2>&1" ; $out = shell_exec($q) ; $input_dir = $output_dir2 ; echo var_dump($out); Output of running that script: string(5735) "ffmpeg version (...) -- https://imcajans.com/img/videos/99999.mpg, https://imcajans.com/img/videos/99999.mp4
• 04:37
  Does there exist fonts that supprot all languages in the FFmpeg? - phil lx Newest 'ffmpeg' Questions - Stack Overflow
  I encountered an issue while using FFmpeg to composite a video. After analyzing the user's request, I discovered that the subtitles included Korean text, which caused the process to hang. To address this, I downloaded a Korean font and placed it in the server's fonts directory. This resolved the problem temporarily. However, this solution is not comprehensive. Another user later requested a video that included traditional Chinese characters, which caused the process to hang again. 成吉思汗，传统蒙古文写作ᠴᠢᠩᠭᠢᠰ ᠬᠠᠭᠠᠨ，拉丁蒙古文写作Činggis Qaγan，西里尔蒙古文写作Чингис Хаан，他是蒙古族乞颜部人 I would like to (...) -- https://www.zitijia.com/downloadpage?itemid=250417369808129081
• 01:59
  Can I keep a persistent RTP connection in Python3 which forwards incoming mpegts segment files? - Eric Liang Newest 'ffmpeg' Questions - Stack Overflow
  I've been experimenting with ways to implement an live-streaming HTTP server in Python 3.13 (GIL-disabled) which gradually receives .ts segment files every 1 second in order through PUT requests, saves them temporarily and locally, and delivers the segment files in the same order to a destination which accepts .ts segment files, necessarily through a single persistent connection to the destination. I have started trying it out with RTP as the protocol, but I've been struggling to keep the connection alive with ffmpeg as I seem to only be able to send 1 segment at a time (...)

19 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 21:25
  avformat/framecrc: add AVFMT_NODIMENSIONS flag - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avformat/framecrc: add AVFMT_NODIMENSIONS flag Framecrc does not need frame dimensions to work correctly. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavformat/framecrcenc.c
• 09:51
  avcodec/dnxuc_parser: rework DNXUC parser - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avcodec/dnxuc_parser: rework DNXUC parser The current parser does things which a parser should not, like skipping parts of the packet header, but it does not actually able to packetize a raw DNXUC bitstream. Rework the parser logic to work similar to other parsers and be able to correctly packetize raw DNXUC bitstreams. Bump minor version because the DNXUC codec packet format changes with this. Normally this would be a breaking change, but in this particular case it should not cause any issues in practice because the DNXUC codec is relatively new and we never added a decoder for it. (...)
• 16:24
  avformat/hevc: fix writing hvcC when no arrays are provided in hvcC-formatted input - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/hevc: fix writing hvcC when no arrays are provided in hvcC-formatted input Don't reject extradata with missing PS NALUs if array_completeness is not requested. Fixes a regression since a696b28886. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/hevc.c
• 22:18
  doc/infra: Document trac backup system - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  doc/infra: Document trac backup system Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/infra.txt
• 22:18
  doc/infra: clarify domain name servers - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  doc/infra: clarify domain name servers Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/infra.txt

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 10:23
  How to compress videos on AMD RX 7900 XTX with ffmpeg? [closed] - cprn Newest 'ffmpeg' Questions - Stack Overflow
  On Nvidia's GTX 1070 I used to do the below command, and it'd produce a way smaller file (often less than half of the original) without any visible degradation (at least for my eyes): ffmpeg -hwaccel cuda -i file.mp4 -c:v hevc_nvenc -crf 20 file.small.mp4 Now I switched to AMD's RX 7900 XTX and this command obviously doesn't work. What's the "equivalent" of that command? As in: getting way smaller file with seemingly no quality loss. What I tried: av1_nvenc ends up in errors: ffmpeg -hwaccel vaapi -hwaccel_device (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 07:55
  ffv1enc_vulkan: support buffers larger than 4GiB - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: support buffers larger than 4GiB Unlike the software FFv1 encoder, none of our buffers are allocated by FFmpeg, which supports at most 4GiB large allocations. For really large sizes, the maximum size of the buffer can exceed 4GiB, which the software encoder optimistically tries to allocate as 4GiB in the hopes that the encoder will compress to under that amount. We can just let Vulkan allocate us a larger buffer, and switch to 64-bit offsets. [DH] libavcodec/ffv1enc_vulkan.c [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 17:22
  Make a video file with the song cover for each song in a folder [closed] - Nathan Kaufmann Newest 'ffmpeg' Questions - Stack Overflow
  I have a folder full of wav audio files, and I would want, using ffmpeg in a batch file, to output as many video files as there is songs, with a still image of the cover, with the highest possible audio quality as permitted by ffmpeg. Additionally I would want the metadata (title, artist, album and year) to be copied to the corresponding video file. For now I have the command: ffmpeg -f lavfi -i color=c=black:s=640x480 -i song.wav -c:v libx264 -tune stillimage -pix_fmt yuv420p -shortest -c:a aac -ar 96000 -b:a -metadata title="My title" 1000000000k output.mp4 But it only (...)
• 17:11
  Gstreamer video increases latency with decreased FPS - Ri Di Newest 'ffmpeg' Questions - Stack Overflow
  I am using RPI 5 to stream the video: rpicam-vid -t 0 --camera 0 --nopreview --mode 2304:1296:10:P --codec yuv420 --width 640 --height 360 --framerate 10 --rotation 0 --autofocus-mode manual --inline --listen -o - | ffmpeg -f rawvideo -pix_fmt yuv420p -s:v 640x360 -r 10 -i /dev/stdin -c:v libx264 -preset ultrafast -tune zerolatency -maxrate 300k -bufsize 50k -g 30000 -f mpegts tcp://192.168.0.147:1234 View it with: gst-launch-1.0 -v tcpserversrc host=0.0.0.0 port=1234 ! queue ! tsdemux ! h264parse ! avdec_h264 ! videorate ! (...)
• 16:42
  react vite ffmpeg how to resolve worker module returning 404 - pmkob Newest 'ffmpeg' Questions - Stack Overflow
  I have imported the js, wasm, and worker modules into my project https://unpkg.com/ⓐffmpeg/coreⓐ0.12.6/dist/esm/ffmpeg-core.js https://unpkg.com/ⓐffmpeg/coreⓐ0.12.6/dist/esm/ffmpeg-core.wasm https://unpkg.com/ⓐffmpeg/core-mtⓐ0.12.2/dist/esm/ffmpeg-core.worker.js and upon calling the function that the load is in, i get the error in the worker module Request URL: http://localhost:3000/node_modules/.vite/deps/worker.js?worker_file&type=module Status Code: 404 Not Found Referrer Policy: strict-origin-when-cross-origin In order to resolve this (...) -- https://unpkg.com/@ffmpeg/core@0.12.6/dist/esm/ffmpeg-core.js, https://unpkg.com/@ffmpeg/core@0.12.6/dist/esm/ffmpeg-core.wasm, https://unpkg.com/@ffmpeg/core-mt@0.12.2/dist/esm/ffmpeg-core.worker.js, https://github.com/ffmpegwasm/ffmpeg.wasm/issues/532

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:32
  tests/checkasm/diracdsp: fix alignment for src and ombc_weight buffers - James Almer git.videolan.org Git - ffmpeg.git/rss log
  tests/checkasm/diracdsp: fix alignment for src and ombc_weight buffers They are supposed to be 16 byte aligned, not 8. Should fix crashes in some systems. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] tests/checkasm/diracdsp.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:57
  Creating an RTSP stream and converting it to WebRTC using MediaMTX [closed] - Amitai Fensterheim Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a RTSP stream using ffmpeg, and using MediaMTX to serve the video in the browser (WebRTC). What is the right way achieve this? (Note: I'm using wsl2 ubuntu on a Windows machine) What I tried: Running MediaMTX: sudo docker run --rm -it -p 8554:8554 -p 8889:8889 bluenviron/mediamtx Running ffmpeg: ffmpeg -stream_loop -1 -re -i ./Big_Buck_Bunny.mp4 -c:v copy -f rtsp rtsp://localhost:8554/output Getting an error: Error submitting a packet to the muxer: Broken pipe When trying to run the ffmpeg with TCP (...)
• 12:05
  Gstreamer video increases latency with decresed FPS - Ri Di Newest 'ffmpeg' Questions - Stack Overflow
  I am using RPI 5 to stream the video: rpicam-vid -t 0 --camera 0 --nopreview --mode 2304:1296:10:P --codec yuv420 --width 640 --height 360 --framerate 10 --rotation 0 --autofocus-mode manual --inline --listen -o - | ffmpeg -f rawvideo -pix_fmt yuv420p -s:v 640x360 -r 10 -i /dev/stdin -c:v libx264 -preset ultrafast -tune zerolatency -maxrate 300k -bufsize 50k -g 30000 -f mpegts tcp://192.168.0.147:1234 View it with: gst-launch-1.0 -v tcpserversrc host=0.0.0.0 port=1234 ! queue ! tsdemux ! h264parse ! avdec_h264 ! videorate ! video/x-raw,framerate=10/1 ! videoconvert ! (...)
• 07:54
  Record video stream in rust - El_Loco Newest 'ffmpeg' Questions - Stack Overflow
  I have bought a stereo camera with global shutter and a frame rate of at most 120 fps. https://www.amazon.com/dp/B0D8T3ZSL4?ref_=pe_386300_442618370_TE_sc_as_ri_0# My next step is to write a program that can show and record a video with desired fps and resolution. use opencv:: core, highgui, prelude::*, videoio::self, VideoCapture, Result, ; fn open_camera() -> Result let capture = videoio::VideoCapture::new(2, videoio::CAP_ANY)?; return Ok(capture); fn main() -> Result<()> let window = "video capture";  (...) -- https://www.amazon.com/dp/B0D8T3ZSL4?ref_=pe_386300_442618370_TE_sc_as_ri_0#
• 03:10
  Compiling FFMPEG x265 not found using pkg-config - secondplace Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to compile FFMPEG with x265 on Win10. I am using the latest full MinGW build from xhmikosr found at: http://xhmikosr.1f0.de/tools/msys/ FFMEPG without x265 compiles without problems and compiling x265 standalone works without problems too. However when i --enable-libx265 in ffmpeg i get the following error: ERROR: x265 not found using pkg-config and this from the config.log: require_pkg_config libx265 x265 x265.h x265_api_get check_pkg_config libx265 x265 x265.h x265_api_get test_pkg_config libx265 x265 (...)

18 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 02:22
  avcodec/h2645_parse: Ignore NAL with nuh_layer_id == 63 - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h2645_parse: Ignore NAL with nuh_layer_id == 63 Comply with "For purposes other than determining the amount of data in the decoding units of the bitstream, decoders shall ignore all data that follow the value 63 for nuh_layer_id in a NAL unit" Rec. ITU-T H.265 v8 (08/2021) Page 67 Fixes: index 63 out of bounds for type 'const int8_t[63]' (aka 'const signed char[63]') Fixes: clusterfuzz-testcase-fuzzer_loadfile-5109286752026624 Reported-by: Kacper Michajlow <kasper93ⓐgmail.com> Found-by: ossfuzz Signed-off-by: Michael Niedermayer (...)
• 08:43
  avfilter/textutils: Add missing time_internal.h - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avfilter/textutils: Add missing time_internal.h This fix build error on Windows with MSVC. We need time_internal.h for gmtime_r and localtime_r. Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] libavfilter/textutils.c
• 22:55
  avcodec/mjpegdec: Disallow progressive bayer images - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/mjpegdec: Disallow progressive bayer images Fixes: Null pointer dereference Fixes: sample1.dng Found-by: South East <8billion.peopleⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/mjpegdec.c
• 02:01
  avformat/movenc: don't write a calculated avgBitrate when the provided one is unset - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/movenc: don't write a calculated avgBitrate when the provided one is unset avgBitrate == 0 is used to signal a VBR track, so if that value is propagated by an encoder, don't overwrite it with a calculated value based on track size. Part of a fix for ticket #11303. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/movenc.c
• 02:01
  avcodec/libfdk-aacenc: export CPB properties - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libfdk-aacenc: export CPB properties Needed to signal the muxer that the stream is VBR. Finishes fixing ticket #11303. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libfdk-aacenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 23:07
  Record Audio using ALSA in mp4 format - teena meheren Newest 'ffmpeg' Questions - Stack Overflow
  I am working on to record audio using ALSA library. I am able to record the audio using the same library in .wav file, but what I need is to record an .mp4 file. For that I initialize the FFmpeg encoder to create MP4 file and trying to record the audio by writing the audio frames into the file. The result which I am getting is an empty MP4 file with no audio. Here I am attaching the code which I have tried #include #include #include #include #include #include #include #include int terminate = 0; int channels = 2; // (...)
• 23:11
  ffmpeg- drawtext style- bold, italics, underline - hack Newest 'ffmpeg' Questions - Stack Overflow
  How can we specify style in drawtext filter. Example, draw 'Hello' in a regular font, but it should be bold, in italics and underlined. Is this possible?

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 02:02
  libavutil/riscv: Make use of elf_aux_info() on FreeBSD / OpenBSD riscv - Brad Smith git.videolan.org Git - ffmpeg.git/rss log
  libavutil/riscv: Make use of elf_aux_info() on FreeBSD / OpenBSD riscv libavutil/riscv: Make use of elf_aux_info() on FreeBSD / OpenBSD riscv FreeBSD/OpenBSD riscv have elf_aux_info(). Signed-off-by: Brad Smith <bradⓐcomstyle.com> Signed-off-by: Rémi Denis-Courmont <remiⓐremlab.net> [DH] libavutil/riscv/cpu.c
• 21:21
  avcodec/ffv1enc: restore header writing behavior for version > 1 - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/ffv1enc: restore header writing behavior for version > 1 Broken by accident in a6c58353ac0. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/ffv1enc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:10
  Why can’t I run the ffmpeg executable stored in /mnt/sdcard? - user2193172 Newest 'ffmpeg' Questions - Stack Overflow
  I managed to compile the ffmpeg Static build. But when I am trying to call the ffmpeg command line I get a Java IOException: No such file or Directory. My code is as follows: public void merge_video(View view) if(ffmpeg_file.exists()) Log.d(null, "ffmpeg exists"); else Log.d(null, "Could not locate ffmpeg in the folder"); File file1 = new File("/mnt/sdcard/com.ffmpeg_test/VID_3_25_2013_12_22.mp4"); if(file1.exists()) Log.d(null,"File 1 exists"); File file2 = new (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:05
  ffv1enc_vulkan: restrict number of execution contexts to 1 - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc_vulkan: restrict number of execution contexts to 1 This only leads to wasting memory in a single-threaded operation. Limit this to 1 for now and leave a comment. [DH] libavcodec/ffv1enc_vulkan.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 12:56
  ffmpeg was not found. How do i fix this? - Ice Cr3aM Newest 'ffmpeg' Questions - Stack Overflow
  So im trying to make a simple discord music bot, which is halted right now due to this problem. The issue is that everytime i try to play a music through youtube_dl library, it pops up with the prompt: "ffmpeg was not found". This is the main.py import discord import os import asyncio import youtube_dl import ffmpeg token = 'NzY5NTUzNDcwNjAwMTE4Mjgz.G3Dzce.XYKNAyLfBPg0ug5XPKssV-9EvsFjBlCMeM43ag' client = discord.Client() block_words = ['foo', 'bar', 'baz', 'quux', (...)
• 04:05
  Go lang, exec.Command() /, \\(escape mark), string processing [closed] - nojob Newest 'ffmpeg' Questions - Stack Overflow
  I am using go lang and want to use exec.Command() function. But having problem processing the string of command Here is my code snippet. cmd := exec.Command("cmd", "/k", "start", "ffplay", "-f", "dshow", "-i", `video=ⓐdevice_pnp_\\\\?\\usb#vid_0fd9&pid_0094&mi_00#6&012aa09&0&0000#65e00ee0-8f44-77d0-a3f5-00a0c9223000\\global`) I really have no idea even I read some articles about `, /, . cmd := exec.Command("cmd", "/k", "start", "ffplay", "-f", "dshow", "-i", "video=Elgato Facecam MK.2") And this works. just video=Elgato Facecam (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 05:16
  hwcontext_vulkan: add the mapped software frame as an upload dependency - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: add the mapped software frame as an upload dependency We do uploads asynchronously, and we map the software frames in order to avoid 2-stage copying. However, whilst we added a dependency upon the mapped buffers, we did not add the original frame backing those buffers as a dependency. This caused issues on RADV, particularly with RGB images. [DH] libavutil/hwcontext_vulkan.c
• 05:15
  vulkan: add ff_vk_exec_add_dep_sw_frame - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: add ff_vk_exec_add_dep_sw_frame Some software frames may be mapped, and we'd like to have them as proper dependencies. [DH] libavutil/vulkan.c [DH] libavutil/vulkan.h
• 04:50
  vulkan: retrieve Vulkan 1.1 properties - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: retrieve Vulkan 1.1 properties Required to know the subgroup size. [DH] libavutil/vulkan.c [DH] libavutil/vulkan.h
• 06:59
  lavc: bump minor version for FFv1 Vulkan encoder - Lynne git.videolan.org Git - ffmpeg.git/rss log
  lavc: bump minor version for FFv1 Vulkan encoder [DH] libavcodec/version.h

17 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:19
  d3d12va_encode_hevc: use base to init VPS/SPS/PPS - Tong Wu git.videolan.org Git - ffmpeg.git/rss log
  d3d12va_encode_hevc: use base to init VPS/SPS/PPS This commit uses hw_base_encode_h265 to generate the VPS/SPS/PPS. Signed-off-by: Tong Wu <wutong1208ⓐoutlook.com> [DH] libavcodec/Makefile [DH] libavcodec/d3d12va_encode_hevc.c
• 18:53
  avcodec/libfdk-aacdec: set keyframe flag and profile in output frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libfdk-aacdec: set keyframe flag and profile in output frames Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libfdk-aacdec.c
• 19:03
  avcodec/libfdk-aacenc: set keyframe in output packets - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libfdk-aacenc: set keyframe in output packets Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libfdk-aacenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:21
  How to detect noisy R channel in ffmpeg? [closed] - davidvankemenade Newest 'ffmpeg' Questions - Stack Overflow
  Does anyone know how ffmpeg can identify that the R channel in the example below is noisy? waveform: noisy R channel flac file with noisy R channel For reference, the following file's R channel is not noisy (except from the first few seconds): waveform: normal R channel flac file with normal R channel How could ffmpeg be used to classify the first file as "poor" and the second file as "OK"? I've not yet been able to find an example to solve this (...) -- waveform: noisy R channel, flac file with noisy R channel, waveform: normal R channel, flac file with normal R channel

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 09:15
  lavu/riscv: fix compilation without Vector support - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavu/riscv: fix compilation without Vector support The half-baked assembler in Clang 16 and earlier can't process our RISC-V assembler. This adds yet another work around that. If you must use Clang, please use version 17 or later. [DH] libavutil/riscv/cpu.h
• 19:21
  lavc/h264dsp: fix R-V V weight_pixels pointer arithmetic - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/h264dsp: fix R-V V weight_pixels pointer arithmetic As of 459a1512f13ae1fdd404ff9281b02d225ac70a09, the code is unrolled to process two rows per iteration. The output cursor thus needs to be incremented by twice the stride, which is taken care of with SH1ADD. However the original ADD from the original implemetation was incorrectly left over. [DH] libavcodec/riscv/h264dsp_rvv.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 22:43
  The ffmpeg output binary stream front-end uses WebSocket to accept and cannot be played [closed] - KIMEOOK Newest 'ffmpeg' Questions - Stack Overflow
  Server push nodejs Use ws service to pass to the front end ffmpegs = spawn('ffmpeg', [ '-f', 'gdigrab', // 这是 Windows 下用于捕获屏幕的输入格式 '-framerate', '60', // 捕获帧率 '-i', 'desktop', // 捕获桌面（即屏幕） '-c:v', 'vp8', // 视频编码格式 '-f', 'webm', // 设置输出为 mpegts 流 '-pix_fmt', 'yuv420p', 'pipe:1', // 输出到管道 ]); Front-end rendering let videoElement = document.getElementById('screenVideo'); let mediaSource (...)
• 16:47
  ffmpeg doesn't stop the playing track even after ending - BlyZe Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to run a 24/7 music stream on my Raspberry Pi 4. The .sh script works perfectly until the first track ends. After the track ends the script still sends empty data infinitely and so the stream is basically dead. Script.sh #!/bin/bash MUSIC_DIR="/home/pi/Desktop/24-7-Music" BACKGROUND_VIDEO="$MUSIC_DIR/bgvid.mp4" KEY="myKey" # Infinite loop to play random files while true; do # Pick a random file from the folder (only including mp3) file=$(find "$MUSIC_DIR" -type f -name "*.mp3" | shuf -n 1) # Check if a file was (...)
• 15:13
  How to add subtitles using FFmpeg-kit? - Mohammed Bekele Newest 'ffmpeg' Questions - Stack Overflow
  I'm running a Flutter app with Ffmpeg-kit package to burn a subtitle on a video. I have a words list with the timings and map that to generate an srt and ass file, but when executing this it didn't work. Firstly, here is how I generated the Ass file. Future _createAssFile() async String filePath = await getAssOutputFilePath(); final file = File(filePath); final buffer = StringBuffer(); // Write ASS headers buffer.writeln('[Script Info]'); buffer.writeln('Title: Generated ASS');  (...)

16 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 17:59
  lavc/x86/videodsp: Drop MMX usage - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/x86/videodsp: Drop MMX usage Remove the MMX versions of these functions and modify the SSE implementations to avoid using MMX registers. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> Reviewed-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] libavcodec/x86/videodsp.asm [DH] libavcodec/x86/videodsp_init.c
• 20:44
  avformat/spdifdec: parse headers for audio codecs - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/spdifdec: parse headers for audio codecs Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/spdifdec.c [DH] tests/ref/fate/spdif-dca-core-remux [DH] tests/ref/fate/spdif-dca-master-core-remux
• 20:47
  avformat/test/movenc: set audio packets as key frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/test/movenc: set audio packets as key frames Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/tests/movenc.c
• 20:46
  avformat/movenc: write stss boxes for xHE-AAC - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/movenc: write stss boxes for xHE-AAC This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/movenc.c
• 20:49
  avformat/matroskadec: set all frames in a keyframe simple box as keyframes - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/matroskadec: set all frames in a keyframe simple box as keyframes And not just the first, as it was being done for lacing. The spec states that the flag applies to everything inside the simple box. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/matroskadec.c
• 23:29
  avcodec/aacenc: set keyframe flag in output packets - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/aacenc: set keyframe flag in output packets Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/aacenc.c
• 23:28
  avcodec/aac/aacdec: set keyframe flag in output frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/aac/aacdec: set keyframe flag in output frames Don't depend on the generic code setting this. This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/aac/aacdec.c
• 20:56
  avcodec/aac_parser: set key_frame and profile - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/aac_parser: set key_frame and profile This is in preparation for a following change. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/aac_ac3_parser.c
• 20:54
  avformat/mov: don't unconditionally set all audio packets in fragments as key frames - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: don't unconditionally set all audio packets in fragments as key frames Some audio codecs, like TrueHD, have non key frames. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/mov.c
• 23:32
  avcodec/codec_desc: remove Intra Only prop for AAC - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/codec_desc: remove Intra Only prop for AAC xHE-AAC is a profile where some frames depend on other key frames, named IPF. By setting the codec as Intra Only, all frames output by decoders and all packets output by encoders/demuxers will be unconditionally flaged as keyframes, which is incorrect. Should fix ticket #11272. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/codec_desc.c [DH] libavcodec/version.h
• 16:12
  avutil/frame: fix setting plane_padding - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avutil/frame: fix setting plane_padding STRIDE_ALIGN is a lavc define and is not necessarely 32. And align may be <= 0 at the point plane_padding is being set. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/frame.c
• 16:10
  avutil/frame: use size_t for total_size in get_video_buffer() - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avutil/frame: use size_t for total_size in get_video_buffer() Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/frame.c
• 15:51
  avutil/frame: also align data pointers in av_frame_get_buffer() - Pavel Koshevoy git.videolan.org Git - ffmpeg.git/rss log
  avutil/frame: also align data pointers in av_frame_get_buffer() This avoids unpleasant surprises to av_frame_get_buffer callers that explicitly specified 64-byte alignment and didn't get AVFrame.data pointers that are 64-byte aligned. For example, see https://github.com/sekrit-twc/zimg/issues/212 Although the zscale issue has already been resolved by other means it would still be prudent to improve the behavior of av_frame_get_buffer to fix any unknown and future instances of similar issues. Co-authored-by: James Almer <jamrialⓐgmail.com> Signed-off-by: James Almer (...)
• 20:32
  doc/developer: Document relationship between git accounts and MAINTAINERS - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  doc/developer: Document relationship between git accounts and MAINTAINERS This should have been documented long ago and i thought it was Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/developer.texi
• 14:22
  lavc/h264idct: fix RISC-V group multiplier - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/h264idct: fix RISC-V group multiplier After the branch, the expected SEW/LMUL ratio is 1 byte/vector. So we have to set the same ratio before branching (QEMU does not care, but real hardware does). [DH] libavcodec/riscv/h264idct_rvv.S
• 06:58
  lavc/h264dsp: remove RISC-V table alignment - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/h264dsp: remove RISC-V table alignment These values are bytes and need not be aligned. [DH] libavcodec/riscv/h264idct_rvv.S
• 06:58
  lavc/vp8dsp: remove RISC-V table alignment - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/vp8dsp: remove RISC-V table alignment These values are bytes and need not be aligned. [DH] libavcodec/riscv/vp8dsp_rvv.S
• 07:19
  checkasm: add RISC-V vector width to arch info - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  checkasm: add RISC-V vector width to arch info [DH] tests/checkasm/checkasm.c
• 07:19
  tests/cpu: print the RISC-V Vector length - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  tests/cpu: print the RISC-V Vector length [DH] libavutil/tests/cpu.c
• 09:30
  sws/range_convert: fix RISC-V chrFromJpeg - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  sws/range_convert: fix RISC-V chrFromJpeg [DH] libswscale/riscv/range_rvv.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:23
  How to broadcast a video stream without reloading the page? - promo 69 Newest 'ffmpeg' Questions - Stack Overflow
  I created a Node.js server to: Receive images in udp and transform them into video and Display it on a website I tried but I don't understand how to broadcast the video live without having to reload the page Node.js server code: const express = require('express'); const dgram = require('dgram'); const fs = require('fs'); const ffmpeg = require('fluent-ffmpeg'); const path = require('path'); const WebSocket = require('ws'); const app = express(); const httpPort = (...)
• 18:46
  FFmpeg: get the last 10 seconds [closed] - Gee Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to get the 10 last seconds of a video of which I don't know the length and then save those 10 seconds as a new video. Is this do able with the ffmpeg command prompt? And if so, how?
• 18:26
  convert a heif file to png/jpg using ffmpeg - Ajitesh Singh Newest 'ffmpeg' Questions - Stack Overflow
  The use case is very straight forward. Imagemagick is able to do the conversion but I want to do it with ffmpeg. Here is the all commands I have tried and all of them gives moov atom not found error. ffmpeg -i /Users/ajitesh/Downloads/sample1.heif -c:v png -pix_fmt rgb48 /Users/ajitesh/Downloads/sample.png Output [mov,mp4,m4a,3gp,3g2,mj2 ⓐ 0x7f85aa813200] moov atom not found /Users/ajitesh/Downloads/sample1.heif: Invalid data found when processing input it seems like moov atom is actually not present by trying to extract the location of moov atom using the (...)
• 18:56
  How to get the last x seconds with high accuracy with FFmpeg? - rbarab Newest 'ffmpeg' Questions - Stack Overflow
  I would like to batch process mp4 videos, getting the last x seconds of each and saving them to individual files. I need to do this with a very high accuracy, preferably to 0.001 seconds or better. Found a related question (FFmpeg: get the last 10 seconds) suggesting -sseof, which works great, but as the answer said it's not completely accurate with stream copy. I am trying to match video lengths to the length of a reference video. Would I need to re-encode? Can sseof handle this accurate enough if I specify duration as 00:00:00.000000 (which I get from reference (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 06:57
  lavc/h264dsp: move RISC-V fn pointers to .data.rel.ro - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/h264dsp: move RISC-V fn pointers to .data.rel.ro This should fix PIC builds. [DH] libavcodec/riscv/h264dsp_rvv.S

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 11:59
  How can I use ffmpeg to generate a video from a sequence of still images that exist in RAM? [closed] - Skittlez McGuillicutty Newest 'ffmpeg' Questions - Stack Overflow
  I'm aware that I can use an ffmpeg command like ffmpeg -framerate 60 -i img%d.png -c:v mjpeg -qscale:v 1 output.mp4 Using C++, I want to be able to write image files into RAM (rather than to disk) and generate a video from them. I tried using memory mapped files but I can't figure out how to pass them into ffmpeg. Most likely what I'm looking for is a solution like tmpfs, but it's also worth noting that I'm doing this on (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 08:08
  avcodec/rv60: consistent indentation - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avcodec/rv60: consistent indentation [DH] libavcodec/rv60dec.c
• 08:08
  avcodec/rv60: simplify fill_mv_skip_cand - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avcodec/rv60: simplify fill_mv_skip_cand [DH] libavcodec/rv60dec.c
• 08:08
  avcodec/rv60: loosen fill_mv_skip_cand top right and bottom left criteria - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  avcodec/rv60: loosen fill_mv_skip_cand top right and bottom left criteria Fixes ticket #11293. [DH] libavcodec/rv60dec.c
• 08:08
  configure: add rv60 decoder golomb dependency - Peter Ross git.videolan.org Git - ffmpeg.git/rss log
  configure: add rv60 decoder golomb dependency Fixes standalone compilation of the rv60 decoder. [DH] configure

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 02:16
  Concatenate m4s vimeo files - Veverica10 Newest 'ffmpeg' Questions - Stack Overflow
  when downloading a vimeo video my downloaded always stopped at 99%. I was left with two collections of m4s files; one for video and one for audio stream. I tried all possible solutions an none worked for me. Renaming the extension to mp4 did not work, concatination with ffmpeg also did not work. I realised that video stream is created by an init.mp4 file followed by other segments one by one. The video player gets the information about the stream quality in a separate file, usually in text format. It then use the init.m4s file with video headers as a started and glues the segments to (...) -- https://www.base64decode.org/ , hex editor

15 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 14:09
  avutil/mem_internal: define DECLARE_ALIGNED as C11's alignas - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avutil/mem_internal: define DECLARE_ALIGNED as C11's alignas alignas is portable than compiler's specific __attribute__. It do have a limitation, that alignas don't support specify aligment on the declarations of struct (it works for specify alignment on struct fields), which only used by avcodec/cavs, and is removed now. Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] libavutil/mem_internal.h
• 10:56
  avcodec/cavs: Limit align requirement to variable than type - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avcodec/cavs: Limit align requirement to variable than type There are another three cavs_vector variables, ff_cavs_dir_mv, ff_cavs_intra_mv and un_mv. They don't need align to 8. Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] libavcodec/cavs.h
• 10:56
  avutil/mem_internal: local align should always work - Zhao Zhili git.videolan.org Git - ffmpeg.git/rss log
  avutil/mem_internal: local align should always work Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] configure [DH] libavutil/mem_internal.h
• 23:14
  avformat/movenc: don't disable edit lists when writing CMAF output - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/movenc: don't disable edit lists when writing CMAF output They are needed for audio tracks with priming samples, where negative CTS offsets can't be used. Fixes ticket #11031. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/movenc.c
• 05:48
  avformat/mpegts: add DVB descriptor_tag values already in use - Scott Theisen git.videolan.org Git - ffmpeg.git/rss log
  avformat/mpegts: add DVB descriptor_tag values already in use Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavformat/mpegts.h
• 04:30
  ffv1enc: expose ff_ffv1_write_extradata - Lynne git.videolan.org Git - ffmpeg.git/rss log
  ffv1enc: expose ff_ffv1_write_extradata [DH] libavcodec/ffv1enc.c [DH] libavcodec/ffv1enc.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:54
  How to set AV_FRAME_FLAG_DISCARD with avcodec_open2 - Christoph Newest 'ffmpeg' Questions - Stack Overflow
  I want to discard corrupted H.264 frames, but I've been unable to achieve this. I've tried setting flags after creating the context, as well as using options, but neither method has worked, and I still see the corrupted frames. examples online demonstrate this with a format context, but in my case, I'm feeding a bytestream directly from a socket. Options version ffmpeg.av_dict_set(&options, "fflags", "discardcorrupt", 0); var ret = ffmpeg.avcodec_open2(_CodecContext, _decodingCodec, &options); ffmpeg.av_dict_free(&options); Flags (...)
• 17:00
  Can't get GCC's -static-libgcc working with DYLIB libraries on Mac OS X - Synthetix Newest 'ffmpeg' Questions - Stack Overflow
  I've installed GCC 4.6.3 into a non-system path on a Mac system and it works fine. However, GCC wants to use code from libgcc for all the binaries I compile, and running otool -L shows that these compiled programs look for libgcc_s.1.dylib in GCC's install path. I can override this by passing -static-libgcc, which just compiles the stuff needed into the binary and that's fine. The problem is this only seems to work with executables, not shared libraries. If I use GCC to compile some third-party lib I want to use in one of my programs as a .dylib, these libraries still look (...)
• 17:22
  Open cv.VideoCapture(index) - ffmpeg list camera names - How to match? - Chris P Newest 'ffmpeg' Questions - Stack Overflow
  def fetch_camera_input_settings(self): try: self.database_functions = database_functions self.camera_input_device_name = database_functions.read_setting("camera_input_device_name")["value"] self.camera_input_device_number = int(self.database_functions.read_setting("camera_input_device_number")["value"]) self.camera_input_devices = self.available_cameras = ["device_index":-1,"device_name":"Καμία συσκευή κάμερας"] # FFmpeg command to list video capture devices on Windows cmd = ["ffmpeg", "-list_devices", "true", "-f", "dshow", "-i", "dummy"] result (...)
• 10:45
  How can use ffmpeg in AWS Lambda to clip hls trasnsimision to .mp4 - Bruno Munné Newest 'ffmpeg' Questions - Stack Overflow
  The ffmpeg input is through the public url of the bucket, I want to save the output in a tmp.mp4 file and I want to upload this file to the bucket. Locally the ffmpeg command works perfectly, lasting no more than 3 seconds and the output file weighs less than 1MB export const handler = async (event) => try const m3u8, offset, duration, signedURL = event; const clipKey = `clip_output.mp4`; const clipFilePath = path.join('/tmp', clipKey); execSync(`/opt/ffmpeglib/ffmpeg -i $process.env.URL_CLOUDFLARE/$m3u8 -ss $offset -t $duration -c copy (...)
• 08:12
  How to install ffmpeg in a docker container - T.Poe Newest 'ffmpeg' Questions - Stack Overflow
  I'm using aeneas python module which uses ffmpeg. I install ffmpeg in the dockerfile as follows: RUN apt-get update && apt-get install -y ffmpeg Now when I run the program, it fails with: aeneas.ffprobewrapper.FFPROBEPathError: Unable to call the 'ffprobe' ffprobe executable : [Errno 2] No such file or directory: 'ffprobe' and aeneas.audiofile.AudioFileProbeError: Unable to call ffprobe executable So my question is, how can I successfully use ffmpeg in a docker container? I'm running Ubuntu (...)
• 06:25
  Can I get the referencing list of each frame of h.264 using ffmpeg or ffprobe? - Reasno Newest 'ffmpeg' Questions - Stack Overflow
  I want to get the referencing list of each frame of h.264 video. For example, I want to get the list as following: Frame 0: Reference frame 0 Frame 1: Reference frame 0 Frame 2: Reference frame 1,3 Frame 3: Reference frame 0 Can I get the referencing information above using ffmpeg or ffprobe? I have googled but got little harvest. Or are there any software can do this? Thanks for your relpy!
• 04:32
  HLS encrypted AES-128 - IOS device problem - Sergio Mitrione Newest 'ffmpeg' Questions - Stack Overflow
  I encrypted our HLS movie in AES-128. On all devices it works but on IOS (iphone and Ipad) no. below is my m3u8 file #EXTM3U #EXT-X-VERSION:3 #EXT-X-TARGETDURATION:2 #EXT-X-MEDIA-SEQUENCE:0 #EXT-X-PLAYLIST-TYPE:VOD #EXT-X-KEY:METHOD=AES-128,URI="https://xxxx/xxxx/xxxxx/x/xxxxx/xxxxxx/xxxxxx.key",IV=0x4d347130965af9bba4349829013bb440 #EXTINF:2.000000, 1_1080p_000.ts #EXTINF:2.000000, 1_1080p_001.ts #EXTINF:2.000000, 1_1080p_002.ts #EXTINF:2.000000, … . has anyone had the same problem (...)

14 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:57
  avformat/mpegts: add support for ATSC E-AC-3 streams - Scott Theisen git.videolan.org Git - ffmpeg.git/rss log
  avformat/mpegts: add support for ATSC E-AC-3 streams ATSC A/52:2018 Digital Audio Compression (AC-3, E-AC-3), Annex G defines stream_type 0x87 for E-AC-3 bit streams. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavformat/mpegts.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 01:59
  libavcodec audio decoding is producing garbeld samples - user28288805 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to write a function that extracts the raw sample data from audio files. But when debugging with a test file I found that the samples in floating point planar format were not in range of -1.0f to 1.0f as specified in the documentation. Here is the function: AudioResource::ReturnCode AudioResource::LoadFromFile(std::string FilePath) std::string FileURL = "file:" + FilePath; AVFormatContext* FormatContext = nullptr; int Error = avformat_open_input(&FormatContext, FileURL.c_str(), nullptr, nullptr); if (Error < 0)  (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 18:25
  avcodec/x86/diracdsp: cast stride argument - Kyosuke Kawakami git.videolan.org Git - ffmpeg.git/rss log
  avcodec/x86/diracdsp: cast stride argument Signed-off-by: Kyosuke Kawakami <kawakami150708ⓐgmail.com> Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] libavcodec/x86/diracdsp.asm
• 18:25
  avcodec/x86/diracdsp: fix wrong register load/use count - Kyosuke Kawakami git.videolan.org Git - ffmpeg.git/rss log
  avcodec/x86/diracdsp: fix wrong register load/use count Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] libavcodec/x86/diracdsp.asm
• 18:25
  checkasm/diracdsp: test add_dirac_obmc - Kyosuke Kawakami git.videolan.org Git - ffmpeg.git/rss log
  checkasm/diracdsp: test add_dirac_obmc Signed-off-by: Kyosuke Kawakami <kawakami150708ⓐgmail.com> Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] tests/checkasm/Makefile [DH] tests/checkasm/checkasm.c [DH] tests/checkasm/checkasm.h [DH] tests/checkasm/diracdsp.c [DH] tests/fate/checkasm.mak
• 18:25
  avcodec/x86/diracdsp_init: remove unused macro - Kyosuke Kawakami git.videolan.org Git - ffmpeg.git/rss log
  avcodec/x86/diracdsp_init: remove unused macro PIXFUNC macro is unused since d29a9c2aa68fc3eb6d61ff95c698e29316037583. Signed-off-by: Kyosuke Kawakami <kawakami150708ⓐgmail.com> Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] libavcodec/x86/diracdsp_init.c
• 18:25
  avcodec/x86/diracdsp: migrate last remaining MMX function to SSE2 - Kyosuke Kawakami git.videolan.org Git - ffmpeg.git/rss log
  avcodec/x86/diracdsp: migrate last remaining MMX function to SSE2 The add_dirac_obmc8_mmx function was the only MMX function left. This patch migrates it to SSE2. Here are the checkasm benchmark results: diracdsp.add_dirac_obmc_8_c: 2299.1 ( 1.00x) diracdsp.add_dirac_obmc_8_mmx: 237.6 ( 9.68x) diracdsp.add_dirac_obmc_8_sse2: 109.1 (21.07x) Signed-off-by: Kyosuke Kawakami <kawakami150708ⓐgmail.com> Signed-off-by: Ronald S. Bultje <rsbultjeⓐgmail.com> [DH] libavcodec/x86/diracdsp.asm [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 07:49
  ffmpeg use gpu to encode mpeg4 to ts/m3u8 [closed] - danielRICADO Newest 'ffmpeg' Questions - Stack Overflow
  using ffmpeg I want to trim and transcode a mpeg4 from ts / m3u8 std::string ffmpeg_command = "ffmpeg -hwaccel drm -i " + output_dir + input_file + " -ss 00:00:00.00 -t 31 -c:v " + codec + " -b:v " + std::to_string(bitrate) + " -vf scale=" + std::to_string(width) + "x" + std::to_string(height) + " -hls_time " + std::to_string(30) + " -hls_list_size 0 -hls_segment_filename " + ts_file_pattern + " -f hls " + m3u8_file; I wanted to choose between codecs based on the system, if (...)
• 19:17
  How to Stream Audio from Google Cloud Storage in Chunks and Convert Each Chunk to WAV for Whisper Transcription - Douglas Landvik Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project where I need to transcribe audio stored in a Google Cloud Storage bucket using OpenAI's Whisper model. The audio is stored in WebM format with Opus encoding, and due to the file size, I'm streaming the audio in 30-second chunks. To convert each chunk to WAV (16 kHz, mono, 16-bit PCM) compatible with Whisper, I'm using FFmpeg. The first chunk converts successfully, but subsequent chunks fail to convert. I suspect this is because each chunk lacks the WebM container's header, which FFmpeg needs to interpret the Opus codec correctly.  (...)
• 03:03
  Host discord.py bot that uses executable [closed] - Colton Eimas Newest 'ffmpeg' Questions - Stack Overflow
  I am coding a discord.py music bot and I am going to have to use ffmpeg, which is an executable, how do I go about hosting the discord.py bot with the executable online, free is prefered but not necessary
• 14:02
  FFMPEG : Invalid data found when processing input - Schüler Newest 'ffmpeg' Questions - Stack Overflow
  I am unable to upload mp3 or mp4 is there any specific path format? Here is my code. I have tried this also ffmpeg -i Video/" + Name + " -ss 01:30 -r 1 -an -vframes 1 -f mjpeg Video/" + Name + ".jpg exec("ffmpeg -y -i Video/" + Name + " -map_metadata -1 -ab 192k Video/" + Name + ".jpg", function(err) if (err) console.log(err) console.log('Done', 'Image' : 'Video/' + Name + '.jpg'); ); Here is the error Error: Command failed: ffmpeg -y -i (...)
• 04:16
  Assembling frames into a video in Node.js using fluent-ffmpeg [closed] - Andrei Newest 'ffmpeg' Questions - Stack Overflow
  I have the original video and it's modified frames in a folder. Now I want to assemble the modified frames into a new video. I also want to take the audio from the original video and add it to the new video. My latest code is this using fluent-ffmpeg. But it's not working. await new Promise((resolve, reject) => ffmpeg(path.join(processedFramesDir, "frame-%d.png")) .inputOptions(["-framerate 30", "-start_number 1"]) .input(videoPath) .outputOptions([ "-c:v", "libx264", "-c:a", "copy", "-shortest", "-r", "30",  (...) --

13 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:11
  delete unused variable ret - tangsha git.videolan.org Git - ffmpeg.git/rss log
  delete unused variable ret [DH] libavutil/libm.h
• 18:28
  doc/infra: Document gitolite - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  doc/infra: Document gitolite Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] doc/infra.txt

Piwik http://piwik.org/

• 20:09
  Join us at MatomoCamp 2024 world tour edition - Daniel Crough Piwik
  Join us at MatomoCamp 2024 world tour edition, our online conference dedicated to Matomo Analytics—the leading open-source web analytics platform that prioritises data privacy.🗓️ Date: 14 November 2024🌐 Format: 24-hour virtual conference accessible worldwide💰 Cost: Free and no need to registerEvent highlightsOpening ceremony Begin the day with a welcome from Ronan Chardonneau, co-organiser of MatomoCamp and customer success manager at Matomo. View session | iCal linkKeynote: “Matomo by its creator” Attend a special session with Matthieu Aubry, the founder of Matomo Analytics. Learn about the (...) -- Uncategorized

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 06:25
  Using ffmpeg with libfdk-aac, encoding HE-AAC v1 and mono actually, but in decoding ffmpeg show HE-AAC v2 and stereo [closed] - olojzyg Newest 'ffmpeg' Questions - Stack Overflow
  ffmpeg encode command: ffmpeg -i aac_128000_f32le_22050_1.wav -c:a libfdk_aac -profile:a aac_he -b:a 64k -channels 1 test.aac output: [aist#0:0/pcm_s16le ⓐ 000001d38ecfe340] Guessed Channel Layout: mono Input #0, wav, from 'aac_128000_f32le_22050_1.wav': Duration: 00:00:06.48, bitrate: 359 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, mono, s16, 352 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (libfdk_aac)) Press [q] to stop, [?] for help Output #0, adts, to (...)
• 13:55
  How to read any frame while having frame number using ffmpeg av_seek_frame() - Parwez Akhtar Newest 'ffmpeg' Questions - Stack Overflow
  int64_t timeBase; timeBase = (int64_t(pavStrm-> time_base.num) * AV_TIME_BASE) / int64_t(pavStrm->time_base.den); int64_t seekTarget = int64_t(iFrameNumber) * timeBase; av_seek_frame(fmt_ctx, -1, seekTarget, AVSEEK_FLAG_FRAME); here I want to read next 5 frame after iFrameNumebr for(int iCnt = 0; iCnt <= 4; iCnt++) iRet = av_read_frame(fmt_ctx, &pkt); do ret = decode_packet(&got_frame, 0); if (ret < 0) break; pkt.data += ret; pkt.size -= ret; while (pkt.size > 0);  (...)
• 07:00
  FFMPEG using AV_PIX_FMT_D3D11 gives "Error registering the input resource" from NVENC - nbabcock Newest 'ffmpeg' Questions - Stack Overflow
  Input frames start on the GPU as ID3D11Texture2D pointers. I encode them to H264 using FFMPEG + NVENC. NVENC works perfectly if I download the textures to CPU memory as format AV_PIX_FMT_BGR0, but I'd like to cut out the CPU texture download entirely, and pass the GPU memory pointer directly into the encoder in native format. I write frames like this: int write_gpu_video_frame(ID3D11Texture2D* gpuTex, AVFormatContext* oc, OutputStream* ost) AVFrame *hw_frame = ost->hw_frame; printf("gpuTex address = 0x%x\\n", &gpuTex); hw_frame->data[0] = (...)

12 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 03:09
  vulkan: fix printing descriptors to shader for shaders with no descriptors - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: fix printing descriptors to shader for shaders with no descriptors [DH] libavutil/vulkan.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 02:37
  Queue in Python processing more than one video at a time? [closed] - Mateus Coelho Newest 'ffmpeg' Questions - Stack Overflow
  I have an raspberry pi, that i proccess videos, rotate and put 4 water marks, but, when i run into the raspberry pi, it uses 100% of 4CPUS threads and it reboots. I solved this using -threads 1, to prevent the usage of just one of the 4 CPUS cores, it worked. I made a Queue to procces one at a time, because i have 4 buttons that trigger the videos. But, when i send more then 3 videos to the Queue, the rasp still reboots, and im monitoring the CPU usage, is 100% for only one of the four CPUS But, if i send 4 or 5 videos to the thread folder, it completly reboots, and the (...) --
• 03:56
  Blending Videos in FFmpeg: Excluding Transparent Areas from the Blend [closed] - li lu Newest 'ffmpeg' Questions - Stack Overflow
  I have two videos: one background video and one foreground video (with doves flying, containing an alpha channel). I want to blend these two videos so that only the dove parts participate in the blending, while the transparent parts do not. When I use the ffmpeg blend filter, the overall color of the output video changes, as if the entire video is being blended.

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 15:20
  avformat/mov: check that items are allocated before accessing them - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: check that items are allocated before accessing them Fixes NULL pointer dereferences introduced in 2e338152a274a5f10670cee3cd16097076216d72 Fixes: clusterfuzz-testcase-fuzzer_loadfile-4753810267897856 Fixes: clusterfuzz-testcase-minimized-fuzzer_loadfile-6042587212873728 Fixes: clusterfuzz-testcase-minimized-fuzzer_loadfile-6536211629408256 Reported-by: kasper93 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavformat/mov.c
• 22:04
  doc/infra: add reddit sub, facebook page and wikipedia - compn git.videolan.org Git - ffmpeg.git/rss log
  doc/infra: add reddit sub, facebook page and wikipedia [DH] doc/infra.txt
• 16:15
  MAINTAINERS: remove arpi - compn git.videolan.org Git - ffmpeg.git/rss log
  MAINTAINERS: remove arpi [DH] MAINTAINERS

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 19:43
  Read a growing MFX file for live streaming sports match file [closed] - Sumit Chaudhary Newest 'ffmpeg' Questions - Stack Overflow
  I'm struggling to read a growing MXF file in real time for a live sports streaming project in python. I can read the video in 5-minute chunks provided by the recording software, for the same match and I’m able to load the full file (around 750GB) once the match is over and file is complete. However, I need to process the file as it’s still growing. Any suggestions on how to approach this?
• 19:38
  FFMPEG Growing Input files [closed] - user726720 Newest 'ffmpeg' Questions - Stack Overflow
  I'm having issues with piping the ffmpeg out to the ffmpeg input. I have tried as below ffmpeg -i "y:\\3000012936-TXMHD.mxf" -vcodec copy -acodec copy -f mpegts pipe:1 | ffmpeg -re -i pipe:0 -pix_fmt yuv420p -vsync 1 -map 0:v:0 -map 0:a:0 -c:a aac -c:v libx264 -use_template 1 -use_timeline 1 -init_seg_name "init-stream$RepresentationID$-$Bandwidth$.mp4" -media_seg_name "chunk-stream$RepresentationID$-$Number%05d$.$ext$" -b:v 1500k -b:a 128k -ac 2 -profile:v main -level:v 3.0 -s 1920x1080 -r 25 -vsync passthrough -increment_tc 1 -adaptation_sets "id=0,streams=v id=1,streams=a" -g (...)
• 20:02
  I want to use FFmpeg in the spring boot - user25686647 Newest 'ffmpeg' Questions - Stack Overflow
  While creating the function to concatenate audio files with the Java Sound API, I found FFmpeg, which has already implemented the function beautifully with the library. I want to make it possible to automatically install ffmpeg if I build it in the spring boot, and make it available in the spring boot. But somehow it's installing, but I can't seem to read the route. I've been thinking about it for hours, but I can't figure out where the problem is. I need help I tried both the absolute path and the relative path package (...)
• 12:55
  What's the difference with crf and qp in ffmpeg? - Nova Newest 'ffmpeg' Questions - Stack Overflow
  I read https://trac.ffmpeg.org/wiki/Encode/H.264 about h264 encoding and discovered qp. Q1: What are the differences with crf and qp? Q2: Is it better to use qp over crf overall, or is it only if for using qp 0 for best lossless? Q3: Does qp have a known sensible setting if it's preferred? So far, I know crf has the default value of 23 while 18 is a sensible preferred increase in quality, although I don't understand why 18 wouldn't be default if better sensible lossless. Q4: Would changing either of them cause incompatibility with non-ffmpeg players or (...) -- https://trac.ffmpeg.org/wiki/Encode/H.264
• 10:58
  Problems using libavfilter for adding overlay to frames - Michael Werner Newest 'ffmpeg' Questions - Stack Overflow
  On Windows 11 OS with latest libav (full build) a C/C++ app reads YUV420P frames from a frame grabber card. I want to draw a bitmap (BGR24) overlay image from file on every frame via libavfilter. First I convert the BGR24 overlay image via format filter to YUV420P. Then I feed the YUV420P frame from frame grabber and the YUV420P overlay into the overlay filter. Everything seems to be fine but when I try to get the frame out of the filter graph I always get an "Resource is temporary not available" (EAGAIN) return code, independent on how many frames I put into the (...)
• 07:31
  How to split an incoming stream into multiple streams with different resolutions? - Cobalt Newest 'ffmpeg' Questions - Stack Overflow
  How to split an incoming stream into several streams with different resolutions on the MediaMTX server? There is one incoming stream in rtsp, it needs to be split into several channels with different resolutions. I think in the direction of ffmpeg, but I don't understand how to register this in the mediamtx settings.
• 08:10
  Flutter: Running FFmpeg.execute to generate thumbnails in a different isolate doesn't work? - Vasudev Newest 'ffmpeg' Questions - Stack Overflow
  This is the current code to generate thumbnails for Video and Audio files.. It is working fine in most cases. ⓐoverride Future thumbnail(String path, required double width, required double height) async final FFmpegSession session = await FFmpegKit.executeAsync( "-loglevel quiet -i '$filePath' -y -ss 00:00:00.000 -vframes 1 '$thumbnailPath'"); final returnCode = await session.getReturnCode(); if (returnCode == null || returnCode.isValueError()) throw Exception("Thumbnail generation failed"); /* (...)
• 02:00
  No accelerated colorspace conversion found from yuv420p to argb - Zac Chan Newest 'ffmpeg' Questions - Stack Overflow
  I am a novice at ffmpeg and have recently taken over a code base built by a previous engineer. The FFmpeg code is on an app engine that will edit the videos when they are uploaded. This code generated a title animation that will later be used as an overlay. exports.generateTitleAnimation = function(metadata, destPath, options = ) const peeqLogoPath = "/app/assets/peeq-logo.png"; const whiteBarMovPath = "/app/assets/whiteBar.mov"; const titleFontPath = "/app/assets/Sofia-Pro-Black.otf"; const dateStrFontPath = "/app/assets/Sofia-Pro-Medium.otf"; const (...)

11 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 18:39
  avcodec: add ADPCM IMA XBOX decoder - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log
  avcodec: add ADPCM IMA XBOX decoder [DH] Changelog [DH] doc/general_contents.texi [DH] libavcodec/Makefile [DH] libavcodec/adpcm.c [DH] libavcodec/allcodecs.c [DH] libavcodec/codec_desc.c [DH] libavcodec/codec_id.h [DH] libavcodec/utils.c [DH] libavcodec/version.h
• 13:38
  vulkan: add support for 10-bit planar RGB - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan: add support for 10-bit planar RGB [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/vulkan.c
• 13:37
  hwcontext_vulkan: fix planar RGB images - Lynne git.videolan.org Git - ffmpeg.git/rss log
  hwcontext_vulkan: fix planar RGB images They were non-working for quite a while. [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/vulkan.c [DH] libavutil/vulkan.h
• 23:00
  avcodec/hevc/sei: remove unused inline function - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/hevc/sei: remove unused inline function It's also a pointless indirection. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/hevc/sei.h
• 22:59
  avcodec/h2645_sei: move some common SEI syncing code to ff_h2645_sei_ctx_replace() - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h2645_sei: move some common SEI syncing code to ff_h2645_sei_ctx_replace() Instead of duplicating it across all supported decoders. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/h2645_sei.c [DH] libavcodec/h264_slice.c [DH] libavcodec/hevc/hevcdec.c
• 23:01
  avcodec/hevc/sei: remove unnecessary inline function - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/hevc/sei: remove unnecessary inline function It's a pointless indirection. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/h264_sei.h [DH] libavcodec/h264_slice.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:59
  Make ffmpeg continue numbering instead of overwriting files - minseong Newest 'ffmpeg' Questions - Stack Overflow
  Running ffmpeg -i vid.mp4 out%d.png once makes out1.png, out2.png Running the same command but for a different input video: ffmpeg -i vid2.mp4 out%d.png Overwrites out1.png, out2.png How can I ask ffmpeg to generate out3.png and out4.png instead? I don't want the existing files to be overwritten, I want ffmpeg to add the frames of the new video at the end of the sequence of frames that previous commands produced. I will ALWAYS want this behaviour (especially because when I don't, I can easily just delete existing files first). The (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 19:10
  avcodec/h2645_sei: fix parsing AOM grain provider_oriented_code - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h2645_sei: fix parsing AOM grain provider_oriented_code The value is 16 bits big endian, not a single byte. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/h2645_sei.c
• 20:11
  Revert "avcodec/h2645_sei: fix parsing AOM grain provider_oriented_code" - James Almer git.videolan.org Git - ffmpeg.git/rss log
  Revert "avcodec/h2645_sei: fix parsing AOM grain provider_oriented_code" This reverts commit 24141a714093f6a662e922ec38e361f2ec1446b7. It was a change made by looking at an old spec version. [DH] libavcodec/h2645_sei.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 18:16
  Extract crisp frames of a video using command line - minseong Newest 'ffmpeg' Questions - Stack Overflow
  How can I use ffmpeg to extract the frames of a video that have no motion blur? Using ffprobe -f lavfi -i "movie=mymovie.mov,blurdetect[out0]" -show_entries tags=lavfi.blur -of default=nw=1 -v quiet I have learned that the lowest lavfi.blur values of my video are in the range 7-8. For my video, there are 344 lines in this command's output, and 110 of them have values in the range 7-8. I tried to extract only those frames to images using this command: ffmpeg -i mymovie.mov -vf "blurdetect,metadata=select:key=lavfi.blur:value=8:function=less" (...)
• 14:45
  ffmpeg ignores input svg files resolution and produces 100x100 video [closed] - Francesco Potortì Newest 'ffmpeg' Questions - Stack Overflow
  I have used this command for some years to produce .ogg files (or any other format) from a series of .svg files on Linux: ffmpeg -y -r 1.2 -i %06d.svg -qscale:v 10 path.ogg It has worked flawlessly until now, when it produces a video with 100x100 resolution, rather then the 1920x1080 resolution of the input files. If I force the output resolution to be 1920x1080 using the -s option, the resulting video is a magnified version of the 100x100 video output I obtain without the -s option. If I convert the svg files to png using inkscape everything is well, but I'd like to (...) -- Here
• 13:39
  How to accurately/precisely seek to a timestamp in media with ffmpeg API? - wangt13 Newest 'ffmpeg' Questions - Stack Overflow
  I am writing a simple audio player with ffmpeg ver.4.4.4, and I want to seek to specific timestamp of the audio media (a MP3 file). Here is my code. I am using avformat_seek_file() with flags of AVSEEK_FLAG_ANY | AVSEEK_FLAG_BACKWARD, and when I set seek_pos to 10 second when it is playing frames of 3rd second, it seemed NOT jump to the 10th second, it only played the audios after 3rd second! Then I added the code skipping/discarding the packets whose pts is before the seek position. This time, it loops in the if (curr_s < seek_ts), not going to 10th seconds. It (...)
• 13:03
  FFmpeg HLS single file extension and format by byte ranges - Hoàng Vũ Newest 'ffmpeg' Questions - Stack Overflow
  I'm attempting to take a 5-minute video file and produce a single-file HLS playlist with this command ffmpeg -i video.mp4 -codec copy -bsf:v h264_mp4toannexb -hls_time 4 -hls_flags single_file -hls_list_size 0 video.m3u8 Produces a playlist like so: #EXTM3U #EXT-X-VERSION:4 #EXT-X-TARGETDURATION:6 #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:5.338667, #EXT-X-BYTERANGE:535424ⓐ0 video.ts #EXTINF:5.338667, #EXT-X-BYTERANGE:316592ⓐ535424 video.ts #EXTINF:5.338667, #EXT-X-BYTERANGE:285384ⓐ852016 video.ts #EXT-X-ENDLIST&#xA
• 12:12
  ffmpeg - missing avformat headers - badcode Newest 'ffmpeg' Questions - Stack Overflow
  I follow the steps here to compile FFmpeg. And there is no problem. Its working well. But i did not understand something. There are two folders under my home directory. --ffmpeg_sources --ffmpeg_build insede of ffmpeg_sources/libavformat i have number of headers aiff.h apetag.h argo_asf.h asfcrypt.h asf.h ast.h av1.h avc.h avformat.h avi.h avio.h avio_internal.h avlanguage.h ogg.h ... but ffmpeg_build/avformat has 3 header. avformat.h avio.h version.h btw this is my (...) -- here to compile FFmpeg.
• 04:08
  Frames took with ELP camera has unknown pixel format at FHD? - Marcel Kopera Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to take a one frame ever x seconds from my usb camera. Name of the camera is: ELP-USBFHD06H-SFV(5-50). Code is not 100% done yet, but I'm using it this way right now ↓ (shot fn is called from main.py in a loop) import cv2 import subprocess from time import sleep from collections import namedtuple from errors import * class Camera: def __init__(self, cam_index, res_width, res_height, pic_format, day_time_exposure_ms, night_time_exposure_ms): Resolution = namedtuple("resolution", ["width", "height"])  (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:26
  doc/infra: add more information and accounts - compn git.videolan.org Git - ffmpeg.git/rss log
  doc/infra: add more information and accounts [DH] doc/infra.txt

10 novembre

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

• 00:14
  avfilter/asrc_sine: increase frequency accuracy - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avfilter/asrc_sine: increase frequency accuracy Previously the delta phase was fixed point fractional with 2^32 fractions, which caused inaccuracies in the output frequency, unless the input frequency*2^32 was divisable by the sample rate. This patch improves frequency accuracy by tracking subfractions of the delta phase fractions. For this we are using a denominator which is a multiple of the sample rate, making sure that integer frequencies are always accurately represented. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] (...)
• 03:01
  fate: revert previous frequency adjustments of the sine filter - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  fate: revert previous frequency adjustments of the sine filter With more precise frequency support in the sine filter, several fate tests will change. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] tests/fate/ffmpeg.mak [DH] tests/fate/filter-video.mak [DH] tests/fate/libswresample.mak [DH] tests/filtergraphs/concat [DH] tests/filtergraphs/concat-vfr [DH] tests/filtergraphs/crazychannels [DH] tests/ref/fate/copy-shortest1 [DH] tests/ref/fate/copy-shortest2 [DH] tests/ref/fate/filter-concat [DH] tests/ref/fate/filter-concat-vfr [DH] tests/ref/fate/filter-crazychannels [DH] (...)
• 14:25
  avutil/parseutils: do no rely on av_d2q returning higher num/den than allowed in... - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avutil/parseutils: do no rely on av_d2q returning higher num/den than allowed in av_parse_video_rate [DH] libavutil/parseutils.c
• 13:25
  avutil/opt: do no rely on av_d2q returning higher num/den than allowed when parsing... - Marton Balint git.videolan.org Git - ffmpeg.git/rss log
  avutil/opt: do no rely on av_d2q returning higher num/den than allowed when parsing rational opts Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavutil/opt.c