28 mai

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

• 10:38
  How to change HLS quality in ijkplayer for flutter or alternative solutions? - gh05t Newest 'ffmpeg' Questions - Stack Overflow
  Hi can anyone help me with this issue, we decided to use the flutter ijkplayer as it's the only player on flutter that supports the option to change playback speed, but it doesn't have the option to change the hls quality, and neither does any other player as per my findings, if anyone knows please share. As for what I've tried, I download the file and split it into 4 files with each file having only one video and audio stream and use a button to change the file. I also tried to look into changing the tracks from master with the player but while FFMpeg does (...) -- github
• 10:27
  Problems using Intel Quick Sync H.264 Encoder with FFMPEG (shared) - Michael Werner Newest 'ffmpeg' Questions - Stack Overflow
  OS: Windows 11 Pro IDE: Visual Studio 2022 PL: C++ Libraries: FFMPEG shared (own x64 Windows build with libmfx) I am trying to encode frames from a framegrabber card with Intel Quick Sync Encoder using libmfx in FFMPEG shared / libav but I am getting an error always. The "same" procedure using ffmpeg.exe of same build works fine. I increased the FFMPEG logging level to the maximum level. The avcodec_send_frame function always returns -22 (which means "Invalid argument"). And I do not get more information from the log output /console. The only (...)
• 10:10
  ffmpeg streaming an image failure - deonst Newest 'ffmpeg' Questions - Stack Overflow
  I am trying stream a static image on the network. Everything I have tried yet so far has failed: Examples: ffmpeg -y -stream_loop -1 -r 1 -i text2.png -vcodec libx264 -crf 17 -pix_fmt yuv420p -f mpegts udp://239.1.250.12:1234 File is generated but unplayable by VLC or any other TS capable device. ffplay complains about input frame errors but still produces a picture after a few seconds. Tried this for youtube solution as well to a local file. ffmpeg -f image2 -loop 1 -i text1.jpg -re -f lavfi -i anullsrc -vf format=yuv420p -c:v libx264 -b:v 2000k -maxrate 2000k (...)
• 10:04
  FFMpegCore .Net cuts off the fist few (~1.5) seconds of audio - Tim Newest 'ffmpeg' Questions - Stack Overflow
  I want to use FFMpegCore to convert some audio files to raw pcm. I noticed that this always cuts off ~1.5 seconds of my audio from the start. I check my input stream, saved it to HD all good. If use it from cli with the same arguments everything seem fine. I tried -ss 0, no luck. public async Task ConvertToPcmStreamAsync(Stream inputStream) var outputStream = new MemoryStream(); var audioInput = new StreamPipeSource(inputStream); var audioOutput = new StreamPipeSink(outputStream); await FFMpegArguments .FromPipeInput(audioInput)  (...)
• 09:46
  How to get the dimensions of the first input in ffmpeg - Arjen Newest 'ffmpeg' Questions - Stack Overflow
  I have the following command: "ffmpeg -i video.mp4 -i input.png -filter_complex [1:v]scale=iw*(iw/920):-1[scaled];[0:v][scaled]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2 -c:v libx264 -c:a aac -strict experimental -pix_fmt yuv420p -y output-scaling.mp4" In the scale section, it takes the width of the input.png but i want the width of the video.mp4. Is this possible?
• 05:54
  I'm new and am trying to convert video files [closed] - ZDM Newest 'ffmpeg' Questions - Stack Overflow
  So I have upscaled videos of the Fallout 1 cinematics but they're in .avi and I'm using Fallout1in2 which has the cinematics in .mve so I'm trying to convert the .avi to .mve and using ffmpeg I have used this command "ffmpeg -i C:\\PATH_Programs\\BOIL1.AVI BOIL1.MVE" but get this error "ffmpeg unable to choose an output format use standard extension for filename or specify the format manually". Am I doing something wrong or is it just not possible to do it this way? I have used this command "ffmpeg -i C:\\PATH_Programs\\BOIL1.AVI BOIL1.MVE" but get this error "ffmpeg (...)
• 08:22
  Flutter: How to use "ffmpeg_kit_flutter" to merge videos? - Hani Kanakri Newest 'ffmpeg' Questions - Stack Overflow
  i am using "ffmpeg_kit_flutter" to merge two videos with code import 'dart:io'; import 'package:ffmpeg_kit_flutter/ffmpeg_kit.dart'; import 'package:ffmpeg_kit_flutter/abstract_session.dart'; import 'package:ffmpeg_kit_flutter/return_code.dart'; import 'package:flutter/material.dart'; import 'package:flutter_bloc/flutter_bloc.dart'; import 'package:wechat_assets_picker/wechat_assets_picker.dart'; import (...)
• 08:00
  FFMPEG for merging video and audio sources from URLs as a stream - Michael Amir Newest 'ffmpeg' Questions - Stack Overflow
  If I wanted to play a video stream over the network but the video and audio are separated into two different URLs, can I use FFMPEG to stream merge those two sources? Because waiting for FFMPEG to merge both files into a single local file will probably take sometime which wouldn't be nice for the user experience.
• 07:02
  php ffmpeg cannot save video to system temporary folder - user2818066 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to covert a video to h.264 format. I can save the new video to a normal directory but saving the new video to a Windows temp file fails. However I can manage to save a snapshot image from the video into Windows temp folder without problem. I cannot figure out what is the problem? require_once(dirname(__FILE__).'/../vendor/autoload.php'); function get_ffmpeg_exe_path_arr_def() return( array( 'ffmpeg.binaries' => "C:/bin/ffmpeg.exe", 'ffprobe.binaries' => "C:/bin/ffmpeg.exe", 'timeout' => 3600000000, (...)
• 06:26
  Fingerprint vs transcribing, what is the best approach to identify an audio sample inside another longer audio - Bernard Wiesner Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to detect a shorter version of a spoken audio sample inside a longer audio (full version). The shorter audio should be the same or very similar to the one inside the longer version. I also need to have a rough estimate of the timestamp where the audio sample was found. Similar questions here: Identify audio sample in a file How to find the location of a specific word in an audio file? What I have researched so far: 1. fingerprints Using chromaprint extract the fingerprints from both audio files and store them in a DB, then compare them (...) -- chromaprint, whisper
• 06:58
  file samples into frame : avcodec_fill_audio_frame - Mr.Wang from Next Door Newest 'ffmpeg' Questions - Stack Overflow
  Rust binding https://github.com/larksuite/rsmpeg of ffmpeg. I try to fill AVFrame with samples as below. let bgm_samples : AVSamples = ...; assert_eq!(bgm_samples.nb_channels, 1); assert_eq!(bgm_samples.sample_fmt, AV_SAMPLE_FMT_FLTP); let mut frame = AVFrame::new(); frame.set_nb_samples(bgm_samples.nb_samples); frame.set_ch_layout(AVChannelLayout::from_nb_channels(1).into_inner()); frame.set_format(bgm_samples.sample_fmt); frame.set_sample_rate(22050); frame .alloc_buffer() .context("Could not allocate frame (...) -- https://github.com/larksuite/rsmpeg
• 04:40
  ffmpeg conversion increase bitrate - Robert D Weir Newest 'ffmpeg' Questions - Stack Overflow
  When extracting Audio streams using ffmpeg from containers such as MP4, how does ffmpeg increase bitrate, if it is higher than the source bitrate? An example might be ffmpeg -i video.mp4 -f mp3 -ab 256000 -vn music.mp3. What does ffmpeg do if the incoming bitrate is 128k? Does it interpolate or default to 128k on the output music.mp3? I know this seems like not a so-called "programming question" but ffmpeg forum says it is going out of business and no one will reply to posts (...)
• 00:03
  FFmpeg find_package not found - YoungCoder Newest 'ffmpeg' Questions - Stack Overflow
  CMake cannot find FFmpeg even though everything is right setup. I used vcpkg to install ffmpeg I can't find any information to setup ffmpeg with CMake. I'm on Windows 10 with Visual Studio. Get findFFMPEG and put in ffmpeg folder but doesn't solve the issue. change the folder name to FFMPEG capital letters but still doesn't solve the issue. I get this error: Severity Code Description Project File Line Suppression State Details Error CMake Error at CMakeProject1/CMakeLists.txt:15 (find_package): By not providing "FindFFMPEG.cmake" in (...)

27 mai

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

• 14:03
  How to create a video of a precise duration from a single image or by trimming a video using FFmpeg? [closed] - aas Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to create a video from a single image with a very specific duration of 0.09375 seconds using FFmpeg. I've tried various commands, but I can't seem to get the exact duration I need. The closest I've gotten is 0.080000 seconds. It doesn't always have to be something like 0.09375, but I wanted to have an example for it. I've also tried trimming a video, but from what I've read so far, the encoding of the video can be a problem. Even after trying different FFmpeg commands or using MoviePy directly, I've never arrived at the desired (...)
• 23:36
  Extracting frames from video uniformly using ffmpeg (and doing it fast) - Sergio Newest 'ffmpeg' Questions - Stack Overflow
  I'm using this code to extract frames from a video: duration=$(ffprobe -v error -select_streams v:0 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 "$input_video") # Calculate the time interval to uniformly extract frames fps=$(bc -l <<< "($num_frames)/$duration") fps=$(printf "%.2f" "$fps") echo "Extracting frames..." # Use FFmpeg to extract frames ffmpeg -loglevel quiet -i "$input_video" -vf fps="$fps" -q:v 2 "$output_folder/frame_%04d.jpg" This takes a lot of time even if I need a small number of (...)

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

• 20:31
  Ffmpeg - Video is missing audio after merging - Ondřej Omar Martínek Newest 'ffmpeg' Questions - Stack Overflow
  tl;dr I am trying to merge two videos using concat command. The videos merge well but the audio is missing. I get a warning message about "New audio stream with inder 1 at pos7354 and DTS 15s" which is exactly the time where the second video starts. I don't care about the audio stream from the first video, it is just a thumbnail, but I want the second video audio to work. I merged the files using: ffmpeg -i list.txt -c copy output.mp4

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

• 13:33
  avcodec/nvenc_av1: Correct CQ range for AV1 - Diego Felix de Souza git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nvenc_av1: Correct CQ range for AV1 The Constant Quality (CQ) range for the AV1 codec is actually 0 to 63, contrary to what is stated in the header and documentation. Signed-off-by: Diego Felix de Souza <ddesouzaⓐnvidia.com> Signed-off-by: Timo Rothenpieler <timoⓐrothenpieler.org> [DH] libavcodec/nvenc_av1.c

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

• 16:44
  install ffmpeg on amazon ecr linux python - Luka Savic Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to install ffmpeg on docker for amazon lambda function. Code for Dockerfile is: FROM public.ecr.aws/lambda/python:3.8 # Copy function code COPY app.py $LAMBDA_TASK_ROOT # Install the function's dependencies using file requirements.txt # from your project folder. COPY requirements.txt . RUN yum install gcc -y RUN pip3 install -r requirements.txt --target "$LAMBDA_TASK_ROOT" RUN yum install -y ffmpeg # Set the CMD to your handler (could also be done as a parameter override outside of the Dockerfile) CMD (...)
• 11:04
  FFmpeg not connecting to the NamedPipeServerStream - Arthur Edgarov Newest 'ffmpeg' Questions - Stack Overflow
  I am implementing a function to merge audio and video into a single stream using FFmpeg tool. The problem I have right now is that FFmpeg is not connecting to the pipes and I have no idea why. Can someone help me with this issue? Questions I already read: ffmpeg process how to read from pipe to pipe in c# ffmpeg output pipeing to named windows pipe How to use pipe in ffmpeg within c# Using pipes with FFMpeg as an input Arguments: -i "\\\\.\\pipe\\FFmpeg_8daf7" -i "\\\\.\\pipe\\FFmpeg_46100" -c:v copy -map 0:v:0 -map 1:a:0 -shortest -f mp4 (...)
• 11:53
  How to convert ffmpeg shell script parameters to php ffmpeg code? - user2818066 Newest 'ffmpeg' Questions - Stack Overflow
  I want to convert a video to h.264 codec. I can run ffmpeg from shell successfuly using this command: ffmpeg.exe -i C:/Users/fd/motorboat_org.mp4 -c:v libx264 -preset medium -crf 20 -c:a aac -b:a 160k -vf format=yuv420p -movflags +faststart C:/Users/fd/motorboat_2.mp4 How can I execute the same job in php ffmpeg using create method? How to get my following code correct to do the job? function get_ffmpeg_exe_path_arr_def() return( array( 'ffmpeg.binaries' => "C:/bin/ffmpeg.exe", 'ffprobe.binaries' => "C:/bin/ffmpeg.exe",  (...)
• 09:58
  My stitched frames colors looks very different from my original video, causing my video to not be able to stitch it back properly [closed] - Wer Wer Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to extract some frames off my video to do some form of steganography. I accidentally used a 120fps video, causing the files to be too big when i extract every single frame. To fix this, I decided to calculate how many frames is needed to hide the bits (LSB replacement for every 8 bit) and then extract only certain amount of frames. This means if i only need 1 frame, ill extract frame0.png ill remove frame0 from the original video encode my data into frame0.png stitch frame0 back into ffv1 video concatenate frame0 video to the rest of the video, frame0 (...) -- Frame0.mkv, original.mkv, results.mkv
• 01:04
  Using ffmpeg to remove green screen from video - CYAD Newest 'ffmpeg' Questions - Stack Overflow
  I have a video: https://drive.google.com/file/d/1tiP2fX0Xfc6YjIymcHyEXP8-JqEJrlgG/view I'm trying to use ffmpeg to remove the green screen but none of the commands I use work. I saved a frame as a png and was able to remove the green from it: ffmpeg -i green.png -vf chromakey=green:0.1 out.png but the video edit does nothing. ffmpeg -i video.mp4 -vf chromakey=DarkGreen:similarity=0.2:blend=0.3 output4.mov I'm on a windows machine and need to output a format iOS and Android can use, though multiple formats are fine. Any (...) -- https://drive.google.com/file/d/1tiP2fX0Xfc6YjIymcHyEXP8-JqEJrlgG/view

26 mai

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

• 22:50
  avdevice/dshow: fix badly indented line - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avdevice/dshow: fix badly indented line Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavdevice/dshow.c
• 21:34
  qsv: Initialize impl_value - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  qsv: Initialize impl_value Fixes: The warnings from CID1598553 Uninitialized scalar variable Passing partly initialized structs is ugly and asking for hard to rieproduce bugs, The uninitialized fields where not used Reviewed-by: "Xiang, Haihao" <haihao.xiang-at-intel.comⓐffmpeg.org> Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/qsv.c [DH] libavutil/hwcontext_qsv.c
• 12:17
  lavc/vp8dsp: disable EPEL HV on RV128 - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/vp8dsp: disable EPEL HV on RV128 RV128 is mostly scifi at this point, so we can just disable it here (the EPEL HV prologue/epilogue do not save 128-bit registers). [DH] libavcodec/riscv/vp8dsp_init.c [DH] libavcodec/riscv/vp8dsp_rvv.S
• 09:16
  lavc/vvc: Validate temporal MVP references - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Validate temporal MVP references Per VVCv3 p. 157, the collocated reference picture used in temporal motion vector prediction must have RprConstraintsActiveFlag equal to zero and the same CTU size as the current picture. Add these checks, fixing crashes decoding some fuzzed bitstreams. Additionally, only set up the collocated reference picture if it is actually going to be used (i.e. if ph_temporal_mvp_enabled_flag is 1), else legal RPR bitstreams will fail the new checks. Co-authored-by: Nuo Mi <nuomi2021ⓐgmail.com> Signed-off-by: Frank Plowman (...)

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

• 20:48
  Moviepy not updating FFmpeg Version after FFmpeg Install? - The_ Game12 Newest 'ffmpeg' Questions - Stack Overflow
  I've been toying around with MoviePy, and recently switched a project to a new computer at home to continue messing around with it. However, I tried running what I had previously written (which ran perfectly fine on the other computer) and I get this: OSError: MoviePy error: failed to read the first frame of video file ./Gameplay/minecraft- gameplay2.mp4. That might mean that the file is corrupted. That may also mean that you are using a deprecated version of FFMPEG. On Ubuntu/Debian for instance the version in the repos is deprecated. Please update to a recent (...)
• 12:59
  FFMPEG img%d.png with Subdirectory [closed] - Xitano Newest 'ffmpeg' Questions - Stack Overflow
  How to use with subdirectory? Command: ffmpeg -framerate 1/X -i subdirectory/img%d.png -r 25 -pix_fmt yuv420p out.mp4 Result: Error opening input file subdirectory/img%d.png. It works in the same directory as the command, but when I try to use a subdirectory, it doesn't work.
• 09:38
  FFMPEG My stitched frames colors looks very different from my original video, causing my video to not be able to stitch it back properly - Wer Wer Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to extract some frames off my video to do some form of steganography. I accidentally used a 120fps video, causing the files to be too big when i extract every single frame. To fix this, I decided to calculate how many frames is needed to hide the bits (LSB replacement for every 8 bit) and then extract only certain amount of frames. This means if i only need 1 frame, ill extract frame0.png ill remove frame0 from the original video encode my data into frame0.png stitch frame0 back into ffv1 video concatenate frame0 video to the rest of the video, frame0 (...) -- Frame0.mkv, original.mkv, results.mkv

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

• 05:48
  How to check 'Output bit depth' of the libx264 library in ffmpeg? - Greg Newest 'x264' Questions - Stack Overflow
  According to the x264 Encoding Guide, the crf scale depends on whether x264 is 8-bit or 10-bit. Supposedly x264 --help shows the Output bit depth. But on Windows ffmpeg -h full doesn't say anything about Output bit depth and the crf scale option is described as from -1 to FLT_MAX. How can I check if my ffmpeg is using 8-bit or 10-bit version of the libx264 library? -- x264 Encoding Guide

25 mai

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

• 00:52
  avformat/hlsenc: Remove dead ret stores - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/hlsenc: Remove dead ret stores Fixes: CID1529222 Unused value Sponsored-by: Sovereign Tech Fund Reviewed-by: Steven Liu <lingjiujiankeⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/hlsenc.c
• 18:09
  lavc/sbrdsp: fix potential overflow in noise table - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/sbrdsp: fix potential overflow in noise table Since the SBR noise application optimisations are currently restricted to hardware with 128-bit vectors, and use a quadruple multipler, they can load up to 16 32-bit elements. But the "loads" are of 2 segments, or 16 pairs of single precision float. Thus we need to expand the dupiclated section of the noise table from 2x8 to 2x16 to avoid overflows. [DH] libavcodec/sbrdsp_template.c
• 17:51
  lavc/sbrdsp: fix inverted boundary check - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/sbrdsp: fix inverted boundary check 128-bit is the maximum, not the minimum here. Larger vector sizes can result in reads past the end of the noise value table. This partially reverts commit cdcb4b98b7f74d87a6274899ff70724795d551cb. [DH] libavcodec/riscv/sbrdsp_init.c

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

• 01:10
  ffmpeg combine filters for audio and video [closed] - Wise Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use hue=s=0 alongside replacing audio using ffmpeg. I have this originally: /usr/bin/ffmpeg -y -i 'source.mp4' -filter_complex "amovie='audio.mp3':loop=0,asetpts=N/SR/TB[aud]" -map 0:v -map '[aud]' -c:v copy -c:a aac -b:a 128k -shortest 'out.mp4' This works great. Audio is replaced. Now I want to turn it black and white so I try to add hue=s=0: /usr/bin/ffmpeg -y -i 'source.mp4' -filter_complex "hue=s=0,amovie='audio.mp3':loop=0,asetpts=N/SR/TB[aud]" -map 0:v -map '[aud]' -c:v copy -c:a (...)
• 01:04
  Use ffmpeg to match an image to source frames in video [closed] - user22335954 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to write an application to split a single video into multiple pieces based on the appearance of a specific image. (Think title cards). I have video files that may have more than one episode or content inside of a single file and I want them split anywhere I find that title card or image. My application works by the user providing a timestamp in the format of 00:00:00 to specify the title card image which is then used like this: ffmpeg -i FILE -qmin 1 -qscale:v 1 -vframes 00:00:00 -f image2 img.png Now I want to compare that image (img.png) to the source (...) -- https://ffmpeg.org/ffmpeg-filters.html#Examples-46
• 11:07
  How can I use physical computer's GPU on VMware Workstation? - ching Newest 'ffmpeg' Questions - Stack Overflow
  I am ching. I want to use GPU to accelerate video transcoding time by using ffmpeg on the virtual machine, VMware Workstation. I use command lspci | grep VGA, the output is 00:0f.0 VGA compatible controller: VMware SVGA II Adapter It seems that I only can use its own Graphic Card on VMware, right? How can I use my physical computer's GPU, NVIDIA Quadro K2000? Or another solution can solve the problem mentioned on the (...)
• 11:06
  Compress video using ffmpeg.js - John Mark Newest 'ffmpeg' Questions - Stack Overflow
  I attempted to upload and compress a video using ffmpeg.js. However, it appears that this process is ineffective on modern browsers. I have already implemented console logging to verify if the video compression is occurring, yet thus far, no compression has been achieved. Could anyone suggest an alternative library for video compression that might better suit the requirements? import FFmpeg from 'ⓐffmpeg/ffmpeg'; export default methods: async handleFileInputChange(event) const file = (...)
• 07:09
  FFmpeg Error: Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_amix_54 - Josh Lawson Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project to generate a click track using React.js and FFmpeg. The project includes an Express.js backend where I construct an FFmpeg command to combine multiple audio files (count-ins, vocal cues, and click sounds) into a single track. The final output should be an MP3 file. However, I'm encountering an error when running the FFmpeg command: Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_amix_54 How can I correctly construct the FFmpeg command to avoid the "Cannot find a matching stream for unlabeled input pad" error (...)

24 mai

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

• 13:45
  I use ffmpeg to encode and create MPEG file from a source MP4 file. In Mac the encoding is good but in windows it creates random green pixels [closed] - Amudhan R Newest 'x264' Questions - Stack Overflow
  I use ffmpeg 3.4.2 version to encode and create an MPEG-TS file using H.264 encoding. In both Windows and Mac the ffmpeg creates the video without any error. But the resultant video from windows having a green pixels on certain frames. No idea why this is happening. Below is the encoding command: ffmpeg -i VIDEO_SOURCE.mp4 -vf scale=720:480 -c:v libx264 -b:v 2M -minrate 2M -maxrate 2M -bufsize 2M -level:v 40 -profile:v main -bf:v 2 -r 30 -crf 22 -x264-params 'keyint=3:min-keyint=3:ref=2:8x8dct=0:weightp=1:subme=6:rc-lookahead=30' -c:a aac -b:a 130k -ar 48000 -f mpegts (...)

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

• 00:17
  ffmpeg Ghosting between RGB color channels [closed] - Blikpils Newest 'ffmpeg' Questions - Stack Overflow
  This seems like a very specific question so i hope there is someone who can help me out. Within FFMPEG i am trying to add (channel pack) 3 different grayscale videos in RGB within a webm or mp4 video. I got it to work to a degree via Merge planes. This is what i tried: ffmpeg -y -i video1.webm -i video2.webm -i video3.webm -filter_complex "[0:v]format=gray[r]; [1:v]format=gray[g]; [2:v]format=gray[b]; [g][b][r]mergeplanes=0x001020:format=gbrp" -pix_fmt yuv420p -t 00:00:03 output.webm This is the result: As you see the 9 is visible in the red and blue (...) --

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

• 17:17
  lavc/flacdsp: do not assume maximum R-V VL - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/flacdsp: do not assume maximum R-V VL This loop correctly assumes that VLMAX=16 (4x128-bit vectors with 32-bit elements) and 32 >= pred_order > 16. We need to alternate between VL=16 and VL=t2=pred_order-16 elements to add up to pred_order. The current code requests AVL=a2=pred_order elements. In QEMU and on thte K230 hardware, this sets VL=16 as we need. But the specification merely guarantees that we get: ceil(AVL / 2) <= VL <= VLMAX. For instance, if pred_order equals 27, we could end up with VL=14 or VL=15 instead of VL=16. So instead, request literally VLMAX=16. [DH] (...)

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

• 18:28
  How to use ffmpeg to convert a flac file to alac and preserving all metadatas? - AxZxP Newest 'ffmpeg' Questions - Stack Overflow
  I use this loop to convert flac to alac : for i in *.flac; do ffmpeg -i "$i" -y -vn -c:a alac "$i%.flac".m4a; done But some tags are not exported. I tried to use the -map_metadata 0 -id3v2_version 2 flag but it does not change anything. Here you can find the tags that are copied (with or without the -map_metadata) : original tags tags copied When I use XLD Mac software it works perfectly but for some reasons I'd like to use CLI to convert flac (...) -- original tags, tags copied

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

• 15:37
  avcodec/flacdec: Remove unused variable - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avcodec/flacdec: Remove unused variable Forgotten in 0380a03f1f9d55e5690bb92bfa4897f2c728c1e5. Reviewed-by: James Almer <jamrialⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavcodec/flacdec.c

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

• 15:33
  How to achieve real time video editing on Android? - Itamar Newest 'ffmpeg' Questions - Stack Overflow
  I've been working recently on a video-editing-related project on Android, and am desperately looking for resources related to video editing on the platform. The only video-editing related "method" or information I could find was using the FFmpeg library, which is pretty rich in features and capabilities but works really slow, operations such as reversing a 10-second video can take as long as 30 seconds, which delivers a really poor user experience. That being said, it seems that there are tons of Android video-editing apps that are capable of doing everything FFmpeg can, (...) -- InShot, PocketVideo, previous musical.ly TikTok
• 14:41
  How to convert .fbx to frame images - Ittefaq Technologies Newest 'ffmpeg' Questions - Stack Overflow
  I wanna to need help that i wanna to convert .fbx to video through script and i found a soluotion to do it through FFmpeg but it not supports .fbx so i need help in to get frame images so i can make video through ffmpeg or if i am goin in wrong direction you can help me I tried to convert a .fbx file to .obj using three.js and then create a video from the .obj file, but it didn't work. // Function to load FBX using FBXLoader function loadFBX(blob, loader, callback) var url = URL.createObjectURL(blob); loader.load(url, function(object)  (...)

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

• 14:08
  avcodec_find_encoder(AV_CODEC_ID_H264) returns null - Monjura Rumi Newest 'x264' Questions - Stack Overflow
  I am building an android application which will encode image captured from camera preview and later decode it. I am using ffmpeg library to encode and decode. To build static library with x264 I have used this tutorial. http://dl.dropbox.com/u/22605641/ffmpeg_android/main.html. As a source code of ffmpeg if I use the one downloaded from the link given in tutorial I can built it but can't build library if i use source code downloaded from here git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg. I have built library in ubuntu and using it in windows 7 in Eclipse. As I need only h264 (...)

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

• 10:06
  Efficient Video Compression with ffmpeg.js - John Mark Newest 'ffmpeg' Questions - Stack Overflow
  I attempted to upload and compress a video using ffmpeg.js. However, it appears that this process is ineffective on modern browsers. I have already implemented console logging to verify if the video compression is occurring, yet thus far, no compression has been achieved. Could anyone suggest an alternative library for video compression that might better suit the requirements? import FFmpeg from 'ⓐffmpeg/ffmpeg'; export default methods: async handleFileInputChange(event) const file = (...)
• 08:04
  Decoding pcm_s16le with FFMPEG? - Davide Caresia Newest 'ffmpeg' Questions - Stack Overflow
  i have a problem decoding a wav file using ffmpeg. I'm new to it and i'm not quite used to it. In my application i have to input the audio file and get an array of samples to work on. I used ffmpeg to create a function that gets in input the path of the file, the position in time where to start to output the samples and the lenght of the chunk to decode in seconds. I have no reputation, so I had to make a gdrive directory where you can see the problem and the files on which I worked. Here it is: https://goo.gl/8KnjAj When I try to (...) -- https://goo.gl/8KnjAj
• 00:11
  Ghosting in colour channels - Blikpils Newest 'ffmpeg' Questions - Stack Overflow
  This seems like a very specific question so i hope there is someone who can help me out. Within FFMPEG i am trying to add (channel pack) 3 different grayscale videos in RGB within a webm or mp4 video. I got it to work to a degree via Merge planes. This is what i tried: ffmpeg -y -i video1.webm -i video2.webm -i video3.webm -filter_complex "[0:v]format=gray[r]; [1:v]format=gray[g]; [2:v]format=gray[b]; [g][b][r]mergeplanes=0x001020:format=gbrp" -pix_fmt yuv420p -t 00:00:03 output.webm This is the result: As you see the 9 is visible in the red and blue (...) --

23 mai

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

• 21:25
  avformat/demux: resurrect dead stores - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avformat/demux: resurrect dead stores Fixes: CID1473512 Unused value Fixes: CID1529228 Unused value Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/demux.c
• 00:37
  avcodec/tests/bitstream_template: Assert bits_init8() return - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/tests/bitstream_template: Assert bits_init8() return Helps: CID1518967 Unchecked return value Helps: CID1518968 Unchecked return value Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/tests/bitstream_template.c
• 08:37
  lavc/vp9: reset segmentation fields when segmentation isn't enabled - llyyr git.videolan.org Git - ffmpeg.git/rss log
  lavc/vp9: reset segmentation fields when segmentation isn't enabled Fields under the segmentation switch are never reset on a new frame, and retain the value from the previous frame. This bugs out a bunch of hwaccel drivers when segmentation is disabled but update_map isn't reset because they don't ignore values behind switches. This commit also resets the temporal field, though it may not be required. We also do this for vp8 [1] so this commit is just mirroring the vp8 logic. This fixes an issue with certain samples [2] that causes blocky artifacts with vaapi, d3d11va and (...)
• 19:20
  lavc/rv34dsp: remove stray load immediate - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/rv34dsp: remove stray load immediate [DH] libavcodec/riscv/rv34dsp_rvv.S
• 19:21
  lavc/vp8dsp: remove unused macro parameter - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/vp8dsp: remove unused macro parameter [DH] libavcodec/riscv/vp8dsp_rvv.S

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

• 13:03
  What is the good library for video editing module in react.js? [closed] - tayyab manzoor Newest 'ffmpeg' Questions - Stack Overflow
  I want to add a module for video editing in my web app. I have researched about video editing tools like ffmpeg but it is not working. is there any plugin for video editing or I have to build my own with jquery? Thanks I have tried with npm package like ffmpeg but it is not working and I want to know is there any other pacakge for video editing.
• 23:57
  FFMPEG stream from python to browser using socketio - sam Newest 'ffmpeg' Questions - Stack Overflow
  I want to show the video on the browser streamed by ffmpeg. Here's the python script which i made but can't find the way to do so since i am not much into javascript. Can anyone help me please ? import socketio import subprocess import uvicorn sio = socketio.AsyncServer(async_mode='asgi', cors_allowed_origins='*') app = socketio.ASGIApp(sio) ⓐsio.event async def connect(sid, environ): await sio.enter_room(sid, 'Streaming') ⓐsio.event async def stream(cid): video_path = (...)

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

• 06:51
  libavcodec/x86/vvc/vvc_sad: fix assembler error - Haihao Xiang git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/x86/vvc/vvc_sad: fix assembler error X86ASM libavcodec/x86/vvc/vvc_sad.o libavcodec/x86/vvc/vvc_sad.asm:85: error: invalid number of operands libavcodec/x86/vvc/vvc_sad.asm:87: error: invalid number of operands Signed-off-by: Haihao Xiang <haihao.xiangⓐintel.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/x86/vvc/vvc_sad.asm

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

• 13:45
  ffmpeg combine 3 mp4s and 1 mp3 into 1 mp4 with wiperight transitions - tim Newest 'ffmpeg' Questions - Stack Overflow
  How can I use ffmpeg to combine 3 mp4s and 1 mp3 into 1 mp4 with wiperight transitions between the videos and a fade out the audio at the end. The mp3 is longer than the the videos but I only want the resultant video to be the length of the 3 mp4s.
• 13:37
  NodeJS : Fail to write byte array input from webcam to ffmpeg spawn process - Thanesh Prabaghan Newest 'ffmpeg' Questions - Stack Overflow
  I'm using NodeJS server to display an HTML page which has webcam option. Once user visited to my NodeJS server, it will serve html page. User can allow webcam option and see webcam view on the page. In the backend, I send webcam stream (byte array) using socket.io. I receive byte array successfully in backend with the help of socket.io. BUT MY PROBLEM IS, I can't pipe this byte array to the ffmpeg spawn process. I don't know how to properly pipe this data to the ffmpeg. Once it done, all my problem will be solved. On the other side, I have node-media-server as (...)
• 11:54
  Android ffmpeg white space in input path causing "no such file or directory" - Mehran Newest 'ffmpeg' Questions - Stack Overflow
  I'm using the latest version of WritingMinds/ffmpeg-android-java library. I've tried single/double quoting the path with no success. I Logged my command after execution, please look to the input path where a subDirectory contains whiteSpace, a comma has been added between the space: ffmpeg, -i, "storage/emulated/0/Telegram/Telegram, Video/4_5828137322067002802.mp4", -vf... I split and run my command like this: String crop = "-ss " + skipTimeForCrop + " -noautorotate -i " + newPath + " -vframes 10 -vf (...) -- WritingMinds/ffmpeg-android-java
• 11:17
  FFMpeg fails to compile - Nicolas Appriou Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to compile a project that needs a specific version of ffmpeg to work. I isolated ffmpeg build and tried to compile it on its own as done in the parent project. It seems to be version 6.1.1, the build system downloads ffmpeg from this url https://github.com/FFmpeg/FFmpeg/archive/e38092ef9395d7049f871ef4d5411eb410e283e0.zip before building it. I'm using an up-to-date debian testing distribution. When trying to build it on my own, I got this error message: $ ./configure --enable-shared --disable-static --disable-programs --disable-doc $ (...) -- https://github.com/FFmpeg/FFmpeg/archive/e38092ef9395d7049f871ef4d5411eb410e283e0.zip
• 00:41
  Can't preserve metadata in ffmpeg video conversion - sakovias Newest 'ffmpeg' Questions - Stack Overflow
  I would like to preserve the creation time metadata when I convert videos using ffmpeg/avconv. Here is the file I'm trying to convert: $ ffmpeg -i in.avi ffmpeg version 0.8.6-4:0.8.6-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers built on Apr 2 2013 17:00:59 with gcc 4.6.3 Input #0, avi, from 'in.avi': Metadata: creation_time : 2013-08-12 06:59:14 encoder : CanonMVI06 Duration: 00:00:12.26, start: 0.000000, bitrate: 14549 kb/s Stream #0.0: Video: mjpeg, yuvj422p, 640x480, 30 tbr, 30 tbn, 30 tbc Stream (...)
• 00:12
  How to start CMD and execute command in current folder with a batch file [closed] - pzych0p4th Newest 'ffmpeg' Questions - Stack Overflow
  I have this command that I run via cmd in a folder and it executes without problems: for %i in (*) do ffmpeg -y -i "%i" -vcodec copy -acodec copy -map 0:v -map 0:a "%i.mp4" Now I want to create a batch file that I can just open and it will execute this command in the current folder. However for the life of me I cannot get anything to work. Ive tried googling the answer and tried lots of answers from here also, but it seems my knowledge is lacking a bit. If anyone can give any tips that would be appreciated, thanks. I apologize beforehand if something is blatantly (...)

22 mai

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

• 17:42
  Where to (long time) host Spring Boot Application with Data Base Backup and Linux Root Access [closed] - Lord Helmchen Newest 'ffmpeg' Questions - Stack Overflow
  I developed a small application for my father. It uses Spring Boot, MySQL and FFMPEG, which I currently installed on Linux. I want to host it, deploy it automatically, have a back up and root access for FFMPEG installation. It runs smoothly locally on Windows / Linux, now I want to host it somewhere. What I would like to have: Ease of deployment: I got experience in adminstration of linux root servers, but I look for something easy to integrate and maybe automatically deploy it from Github or Gitlab Backup: I want to backup the database ideally to another (...)

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

• 10:54
  tests/fate/source-check: Relax BSD licence check - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  tests/fate/source-check: Relax BSD licence check Several files already had standard license header (namely 2-clause BSD files), yet due to the 80 char line length limit, they were not treated as such by source-check.sh (which fate-source uses). Therefore relax the BSD check. Reviewed-by: Rémi Denis-Courmont <remiⓐremlab.net> Reviewed-by: Pierre-Anthony Lemieux <palⓐsandflow.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] tests/fate/source-check.sh [DH] (...)
• 10:52
  doc/mips: Update list of files with MIPS copyright notice - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  doc/mips: Update list of files with MIPS copyright notice E.g. the AAC stuff has been removed in 03cf10164578aed33f4d0cb5b69d63669c01a538. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] doc/mips.txt
• 04:16
  lavc/qsvenc_av1: accept HDR metadata if have - Haihao Xiang git.videolan.org Git - ffmpeg.git/rss log
  lavc/qsvenc_av1: accept HDR metadata if have The sdk av1 encoder can accept HDR metadata via mfxEncodeCtrl::ExtParam. Signed-off-by: Haihao Xiang <haihao.xiangⓐintel.com> [DH] libavcodec/qsvenc_av1.c
• 04:15
  lavc/qsvdec: update HDR side data on output AVFrame for AV1 decoding - Haihao Xiang git.videolan.org Git - ffmpeg.git/rss log
  lavc/qsvdec: update HDR side data on output AVFrame for AV1 decoding The SDK may provide HDR metadata for HDR streams via mfxExtBuffer attached on output mfxFrameSurface1 Signed-off-by: Haihao Xiang <haihao.xiangⓐintel.com> [DH] libavcodec/qsvdec.c
• 05:40
  avformat/mpegts: Don't use uninitialized value in av_log() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/mpegts: Don't use uninitialized value in av_log() It is undefined behaviour in (at least) C11 (see C11 6.3.2.1 (2)). Fixes Coverity issue #1500314. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/mpegts.c
• 04:57
  avformat/dhav: Check amount read - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/dhav: Check amount read Prevents potential use of uninitialized data in the following memcmp(). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/dhav.c
• 04:56
  avformat/dhav: Check ffio_ensure_seekback() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/dhav: Check ffio_ensure_seekback() Fixes Coverity issue #1492324. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/dhav.c
• 04:53
  avformat/qoadec: Check ffio_ensure_seekback() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/qoadec: Check ffio_ensure_seekback() Fixes Coverity issue #1598406. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/qoadec.c
• 04:51
  avformat/westwood_vqa: Check ffio_ensure_seekback() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/westwood_vqa: Check ffio_ensure_seekback() Fixes Coverity issue #1598405. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/westwood_vqa.c
• 04:49
  avformat/gifdec: Check ffio_ensure_seekback() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/gifdec: Check ffio_ensure_seekback() Fixes Coverity issue #1598400. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/gifdec.c
• 04:48
  avformat/oggdec: Check ffio_ensure_seekback() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/oggdec: Check ffio_ensure_seekback() Fixes Coverity issue #1492327. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/oggdec.c
• 16:56
  tests/checkasm/vvc_alf: Don't use declare_func_emms - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  tests/checkasm/vvc_alf: Don't use declare_func_emms VVC does not have MMX code at all, so one can use the stricter declare_func to also check that the MMX state has not been clobbered with (which would be an ABI violation). Reviewed-by: Martin Storsjö <martinⓐmartin.st> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] tests/checkasm/vvc_alf.c
• 15:18
  avformat/async,cache: Use more unique context names - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/async,cache: Use more unique context names Otherwise Doxygen thinks any text like "Context for foo" is a link to the async protocol's struct called "Context". Reported-by: Andrew Sayers <ffmpeg-develⓐpileofstuff.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/async.c [DH] libavformat/cache.c
• 08:50
  avformat/riffenc: Fix outdated comment - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/riffenc: Fix outdated comment Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/riffenc.c
• 08:49
  avformat/matroskaenc: Check ff_put_wav_header() failure - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avformat/matroskaenc: Check ff_put_wav_header() failure Fixes Coverity issue #1506706. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavformat/matroskaenc.c

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

• 23:04
  How to pipe in and pipe out of ffmpeg in python? [closed] - sa_penguin Newest 'ffmpeg' Questions - Stack Overflow
  I want to use ffmpeg as a middleman to perform a functionality. The camera frames will be read through opencv and passed to ffmpeg for processing. FFMPEG need to pass the processed frames to opencv for displaying. Below is what I tried. The code hangs and is not displaying anything. Any help will be appreciated. import cv2 import math import subprocess as sp import ffmpeg import numpy as np def main(): cap = cv2.VideoCapture(0) if not cap.isOpened(): print("Camera can't open\\nexit") return -1 width = 640 height = (...)

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

• 08:40
  avfilter/af_atempo: Fix indentation - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_atempo: Fix indentation Forgotten after b8f74ee57a6e9e75a507adcddf30f84dd4a39d39. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavfilter/af_atempo.c
• 08:27
  avfilter/af_atempo: Simplify resetting - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_atempo: Simplify resetting The earlier code distinguished between a partial reset (yae_clear()) and a complete reset (yae_release_buffers() which also releases the buffers); this separation existed to avoid allocations, as buffers were reallocated on reconfigs. Yet it is pointless since a5704659e3e41b7698812b89f67d9a7467a74d20, so simply use yae_release_buffers() everywhere. Reviewed-by: Pavel Koshevoy <pkoshevoyⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] (...)
• 07:29
  avfilter/af_atempo: Properly check av_tx_init() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_atempo: Properly check av_tx_init() Fixes Coverity issue #1516804. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] libavfilter/af_atempo.c
• 00:00
  tests/checkasm: Add check_vvc_sad to vvc_mc.c - Stone Chen git.videolan.org Git - ffmpeg.git/rss log
  tests/checkasm: Add check_vvc_sad to vvc_mc.c Adds checkasm for DMVR SAD AVX2 implementation. Benchmarks ( AMD 7940HS ) vvc_sad_8x8_c: 50.3 vvc_sad_8x8_avx2: 0.3 vvc_sad_16x16_c: 250.3 vvc_sad_16x16_avx2: 10.3 vvc_sad_32x32_c: 1020.3 vvc_sad_32x32_avx2: 60.3 vvc_sad_64x64_c: 3850.3 vvc_sad_64x64_avx2: 220.3 vvc_sad_128x128_c: 14100.3 vvc_sad_128x128_avx2: 840.3 Reviewed-by: Ronald S. Bultje <rsbultjeⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] (...)
• 00:00
  libavcodec/x86/vvc: Add AVX2 DMVR SAD functions for VVC - Stone Chen git.videolan.org Git - ffmpeg.git/rss log
  libavcodec/x86/vvc: Add AVX2 DMVR SAD functions for VVC Implements AVX2 DMVR (decoder-side motion vector refinement) SAD functions. DMVR SAD is only calculated if w >= 8, h >= 8, and w * h > 128. To reduce complexity, SAD is only calculated on even rows. This is calculated for all video bitdepths, but the values passed to the function are always 16bit (even if the original video bitdepth is 8). The AVX2 implementation uses min/max/sub. Additionally this changes parameters dx and dy from int to intptr_t. This allows dx & dy to be used as pointer offsets without needing to use (...)

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

• 23:24
  SOLVED: How to start CMD and execute command in current folder with a batch file - pzych0p4th Newest 'ffmpeg' Questions - Stack Overflow
  I have this command that I run via cmd in a folder and it executes without problems: for %i in (*) do ffmpeg -y -i "%i" -vcodec copy -acodec copy -map 0:v -map 0:a "%i.mp4" Now I want to create a batch file that I can just open and it will execute this command in the current folder. However for the life of me I cannot get anything to work. Ive tried googling the answer and tried lots of answers from here also, but it seems my knowledge is lacking a bit. If anyone can give any tips that would be appreciated, thanks. I apologize beforehand if something is blatantly (...)
• 21:39
  Getting (Estimated) Time Offset of the Errors Reported by ffmpeg - Haru Newest 'ffmpeg' Questions - Stack Overflow
  I'm using ffmpeg to check for errors in video files, but while it reports tons of issues it doesn't tell me where exactly the error happens in the file. It just dumps some crazy long hex numbers (0x7fa…) which doesn't tell me anything. Is there a way to make it report some timestamps, or at least estimated timestamps, or byte-offsets into the stream? I tried the -debug_ts flag, but nothing changed in the output. $ ffmpeg -debug_ts -v error -i a_broken_file.mp4 -f null - [h264 ⓐ 0x7fa513023400] Reference 4 >= 4 [h264 ⓐ 0x7fa513023400] error while decoding MB (...)
• 09:54
  drawtext with ffmpeg python - Wolf Wolf Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to add a text to a video using ffmpeg and python. I tried to do this in the following ways, but it didn't work. first ( ffmpeg .input(in_video) .filter('drawtext', fontsize=30, fontfile=r"D:\\projects\\python\\editor_bot\\downloads\\Candara.ttf", text='test test test.', x='if (eq(mod(t\\\\, 15)\\\\, 0)\\\\, rand(0\\\\, (w-text_w))\\\\, x)', y='if (eq(mod(t\\\\, 10)\\\\, 0)\\\\, rand(0\\\\, (h-text_h))\\\\, y)') .output(f'output-final.mp4') .run() ) second fil = (...)
• 08:12
  ffmpeg subtitles filter defaults to Helvetica instead of specified font - Vatsal Joshi Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use a custom font in the subtitles of a video using ffmpeg, but despite my efforts, the font defaults to Helvetica. Here is the code I am using: import ffmpeg import os import tempfile def test_subtitle_font(font_path): # Simple arbitrary video and audio stream video = ffmpeg.input('color=color=black:size=640x360:duration=5', f='lavfi') audio = ffmpeg.input('anullsrc=channel_layout=stereo:duration=5', f='lavfi') # Create arbitrary temp subtitle file with (...)

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

• 01:52
  avformat/mov: avoid seeking back to 0 on HEVC open GOP files - llyyr git.videolan.org Git - ffmpeg.git/rss log
  avformat/mov: avoid seeking back to 0 on HEVC open GOP files ab77b878f1 attempted to fix the issue of broken packets being sent to the decoder by implementing logic that kept attempting to PTS-step backwards until it reached a valid point, however applying this heuristic meant that in files that had no valid points (such as HEVC videos shot on iPhones), we'd seek back to sample 0 on every seek attempt. This meant that files that were previously seekable, albeit with some skipped frames, were not seekable at all now. Relax this heuristic a bit by giving up on seeking to a valid point (...)

21 mai

Piwik http://piwik.org/

• 23:27
  B2B Marketing Attribution Guide: How to Master It in 2024 - Erin Piwik
  The last thing you want is to invest your advertising dollars in channels, campaigns and ads that don’t work. But B2B marketing attribution — figuring out which marketing efforts drive revenue — is far from easy. With longer sales funnels and multiple people from the same company involved in the same sales process, B2B (business-to-business) is a different ballgame from B2C (business-to-consumer) marketing. In this guide, we break down what B2B marketing attribution is, how it’s different, which tools you can use to set it up and the best practices. What is B2B marketing attribution? (...) -- terms and conditions, data processing agreement (DPA)

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

• 17:50
  lavc/pixblockdsp: add scalar get_pixels_unaligned - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  lavc/pixblockdsp: add scalar get_pixels_unaligned The code is already there, we just need to use it. get_pixels_unaligned_c: 2.2 get_pixels_unaligned_misaligned: 1.7 [DH] libavcodec/riscv/pixblockdsp_init.c
• 17:50
  checkasm/riscv: test misaligned before V - Rémi Denis-Courmont git.videolan.org Git - ffmpeg.git/rss log
  checkasm/riscv: test misaligned before V Otherwise V functions mask scalar misaligned ones. [DH] tests/checkasm/checkasm.c

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

• 13:28
  FFmpeg stream extraction modifies subtitles [closed] - user18812922 Newest 'ffmpeg' Questions - Stack Overflow
  I have a video with the following ffprobe output: Input #0, matroska,webm, from 'video.mkv': Metadata: title : Video - 01 creation_time : 2021-07-14T02:49:59.000000Z ENCODER : Lavf58.29.100 Duration: 00:22:57.28, start: 0.000000, bitrate: 392 kb/s Chapters: Chapter #0:0: start 0.000000, end 86.169000 Metadata: title : Opening Chapter #0:1: start 86.169000, end 641.266000 Metadata: title : Part A Chapter #0:2: start 641.266000, end 651.359000 Metadata: title : Eyecatch Chapter #0:3: start (...)

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

• 13:52
  x86/vvc_alf: use the x86inc instruction macros - James Almer git.videolan.org Git - ffmpeg.git/rss log
  x86/vvc_alf: use the x86inc instruction macros Let its magic figure out the correct mnemonic based on target instruction set. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/x86/vvc/vvc_alf.asm

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

• 19:45
  I need to cut a batch of MP4 files to exactly a fixed value of 299 seconds [closed] - DruidCtba Newest 'ffmpeg' Questions - Stack Overflow
  I need some help :). I need to trim a batch of MP4 files to exactly 299 seconds, or 4 minutes and 59 seconds, and from what I've seen, ffmpeg can do this for me. I also need to merge them later on, all in batch, the files that were split above. I think two scripts can do this, it shouldn't be too complicated, but reading the ffmpeg documentation, I found it a bit tricky for me haha. The split can have segments like: Original_File_Name_001.MP4, Original_File_Name_002.MP4, and so on. I saw on github that there's a program, LOSSLESSCUT, which is great (...)
• 16:36
  How do I add a sine pulse to my audio file? I get stuck with an error with the code below: [closed] - imabug Newest 'ffmpeg' Questions - Stack Overflow
  #!/bin/bash # Set paths to your audio files input_file="File (File Path)" output_file="$(dirname "Repeat Item (File Path)")/Repeat Item-watermark.mp3" # Get the duration of the input file in seconds input_duration=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$input_file") # Run ffmpeg with the updated command ffmpeg -y -i "$input_file" -filter_complex " sine=frequency=438:duration=0.1,volume=12dB[beep]; aevalsrc=0:d=0.9[silence]; [beep][silence]concat=n=2:v=0:a=1[beep_pulse]; [beep_pulse]aloo
• 14:12
  Can av_freep() be replaced directly with the following implementation? - leafe Newest 'ffmpeg' Questions - Stack Overflow
  After reviewing the implementation of av_freep(void* arg) in the FFmpeg documentation, I have some questions. Specifically, can its code be simplified to the following form? FFmpeg Implementation: void av_freep(void* arg) void* val; memcpy(&val, arg, sizeof(val)); memcpy(arg, &(void*) NULL , sizeof(val)); av_free(val); my version: void av_freep(void* arg) free(*arg); *arg = (...)
• 20:18
  Install ffmpeg in to virtual environment - ldg Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to install ffmpeg in order to use it on OpenAI to record videos. I have installed it using brew install ffmpeg but somehow when I compile my code I get the same error, it is like the package is not recognized by my virtualenv where I am working. Error on Python console: raise error.DependencyNotInstalled("""Found neither the ffmpeg nor avconv executables. On OS X, you can install ffmpeg via `brew install ffmpeg`. On most Ubuntu variants, `sudo apt-get install ffmpeg` should do it. On Ubuntu 14.04, however, you'll need to install avconv with `sudo (...)
• 18:29
  play encrypted movies in vlc by decrypting them by ffmpeg "on the fly" - doctor Newest 'ffmpeg' Questions - Stack Overflow
  I would like to play encrypted movies in vlc by decrypting them by ffmpeg like below on macOS. The size of my movie is, say, 200-1000MB. (hundreds of files) My problem is that it is too slow to decrypt; it takes 5mins for 300MB movie before it starts to play. My guess is that ffmpeg first decrypts the whole content of 300MB and then VLC plays it. My question: Is it possible to play the movie "on the fly" while decrypting it? (play the decrypted chunk once it is decrypted, Not wait until the whole movie is decrypted before it plays, so that it starts to play in, say, (...)

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

• 15:03
  checkasm: print bench runs when benchmarking - Lynne git.videolan.org Git - ffmpeg.git/rss log
  checkasm: print bench runs when benchmarking Helps make sense of the possible noise in the results. [DH] tests/checkasm/checkasm.c

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

• 16:12
  the ffmpeg recording does not stop after the test case is successfully executed, - ghufran Newest 'ffmpeg' Questions - Stack Overflow
  I am new to selenium, I want to add screen recording in my test cases, and I am using ffmpeg. The issue i am facing is the recording successfully starts, but it does not stop after the test case is successfully executed. Below is how my code is strcutured: package utilities; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class ScreenRecording private Process ffmpeg; private String outputFilePath; private boolean isRecording; public ScreenRecording(String outputFilePath) (...)
• 14:23
  ffmpeg - data is being "removed" while h264 is being processed by ffmpeg - Laki Newest 'ffmpeg' Questions - Stack Overflow
  I got a file which is created based on messages coming from streaming, all of the "messages" are ending with b'h264\\x00' I got a need to load the data into ffmpeg perform some processing of the data re-attach the data to same "messages" Data is loaded with ffmpeg and saved with ffmpeg - however - ffmpeg removes "part" of the data I have simplified the process and currently I am only loading and saving the data, without any processing, but still - part of the data is being removed I have used several commands - but always, part of my data (...)
• 12:33
  ffmpeg real-time buffer too full or near too full frame dropped, I even tried increasing rtbufsize. What could be going wrong? - Ali Azlan Newest 'ffmpeg' Questions - Stack Overflow
  We have a software where we capture the stream from the camera connected to the laptop or device using ffmpeg python, ffmpeg .input(video, s='640x480', **self.args) //tried with rtbufsize=1000M (enough I suupose/ also sometimes the error does not occur even on default rtbufsize which is around 3MB) .output('pipe:', format='rawvideo', pix_fmt='rgb24') .overwrite_output() .run_async(pipe_stdout=True) majority of the times when I start the software like the software is still initiating we receive the following error, (...)