2 avril

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

• 22:08
  m3u8 playback issue with VLC player and ffmpeg [closed] - YUZ Newest 'ffmpeg' Questions - Stack Overflow
  I’m creating a timelapse video from a folder of images using FFmpeg, generating two HLS (m3u8) playlists: one at 1080p and another at 2K resolution. The playlists and .ts segments appear to be generated correctly, but when I play the m3u8 files in media players like VLC or PotPlayer, the video does not play seamlessly. Instead, it plays in a segment-by-segment manner (e.g., it stops after each segment and doesn’t automatically continue to the next one). I expect the entire video to play continuously without interruptions. What could be the issue? I ran these commands on cmd: for %i (...)
• 18:21
  m3u8 playback issue with VLC player [closed] - YUZ Newest 'ffmpeg' Questions - Stack Overflow
  I’m creating a timelapse video from a folder of images using FFmpeg, generating two HLS (m3u8) playlists: one at 1080p and another at 2K resolution. The playlists and .ts segments appear to be generated correctly, but when I play the m3u8 files in media players like VLC or PotPlayer, the video does not play seamlessly. Instead, it plays in a segment-by-segment manner (e.g., it stops after each segment and doesn’t automatically continue to the next one). I expect the entire video to play continuously without interruptions. What could be the issue? I ran these commands on cmd: for %i (...)
• 16:22
  How to Adjust Google TTS SSML to Match Original SRT Timing? - Alexandre Silkin Newest 'ffmpeg' Questions - Stack Overflow
  I have an .srt file where each speech segment is supposed to last a specific duration (e.g., 4 seconds). However, when I generate the speech using Google Text-to-Speech (TTS) with SSML, the resulting audio plays the same segment in a shorter time (e.g., 3 seconds). I want to adjust the speech rate dynamically in SSML so that each segment matches its original timing. My idea is to use ffmpeg to extract the actual duration of each generated speech segment, then calculate the speech rate percentage as: generated duration speech rate = -------------------- original (...)
• 12:45
  Erros while openh264 decoding in ffmpeg - Paul_ghost Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to decode and then re-encode an RTP video-stream. I need to use OpenH264 codec by Cisco. I used this codec with the FFmpeg tool: ffmpeg -hide_banner \\ -protocol_whitelist file,rtp,udp \\ -err_detect ignore_err \\ -c:v libopenh264 \\ -i /src/stream.sdp \\ -c:v libopenh264 \\ -profile:v high \\ $OUTPUT_FILE & The stream has a little packet-loss (around 2-3 % in the middle of the stream), and when packet loss occur, the codec print a lot of errors in the logs: [sdp ⓐ 0x5bfcad506740] max delay reached. need to consume packet (...)
• 10:53
  how can I set a specific duration for my speech using Google Text to Speech - Alexandre Silkin Newest 'ffmpeg' Questions - Stack Overflow
  I went through the documentation of Google Text to Speech SSML. https://developers.google.com/assistant/actions/reference/ssml#prosody So there is a tag called which as per the documentation of W3 Specification can accept an attribute called duration which is a value in seconds or milliseconds for the desired time to take to read the contained text. So Hello, How are you? should take 3 seconds for google text to speech to speak this! But when i try it here https://cloud.google.com/text-to-speech/ , its not working and also I tried it in rest API. How can I get the time of (...) -- https://developers.google.com/assistant/actions/reference/ssml#prosody, https://cloud.google.com/text-to-speech/
• 10:37
  I'm getting error while building the project in vue for ffmpeg.wasm - EaBengaluru Newest 'ffmpeg' Questions - Stack Overflow
  Hi i'm getting below error when i build the project with $npm run build command I'm using vuetify "vuetify": "^2.4.0" still because 3.0 is still in beta so i'm using "vue": "^2.6.11", Here is my package.json .... "dependencies": "ⓐffmpeg/core": "^0.11.5", "ⓐffmpeg/ffmpeg": "^0.11.0", "core-js": "^3.6.5", "vue": "^2.6.11", "vue-router": "^3.5.3", "vuetify": "^2.4.0" , "devDependencies": "ⓐvue/cli-plugin-babel": "~4.5.0", "ⓐvue/cli-plugin-eslint": "~4.5.0", "ⓐvue/cli-service": (...) -- , https://easyupload.io/rl9xyd
• 08:00
  Merge multiple hls playlists - Boris Newest 'ffmpeg' Questions - Stack Overflow
  I want to speed up the process of HLS segmentation of .mp4 video. Now, processing a half-hour video can take about 5 minutes, and that is too long. To do this, I decided to split the video into fragments, process each of them in parallel, and then create an .m3u8 file that will contain a list of .ts files from all the resulting playlists in the correct order. I used the next commands: ffmpeg -i original.mp4 -acodec copy -f segment -segment_time 10 -vcodec copy -reset_timestamps 1 -map 0 output_time_%d.mp4 for splitting the original video to .mp4 fragments 10 seconds (...)
• 07:29
  FFmpeg av_seek_frame() successful, but decoding always starts from the beginning - Summit Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a video player using FFmpeg in C++, where I need to seek to a specific PTS (timestamp) and start decoding from there. However, even after a successful av_seek_frame(), decoding always starts from frame 0 instead of the target frame. void decodeLoop() while (!stopThread) std::unique_lock lock(mtx); cv.wait(lock, [this] return decoding || stopThread; ); if (stopThread) break; int64_t reqTimestamp = requestedTimestamp.load(); // **Skip redundant seeks** if (reqTimestamp == (...)

1er avril

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

• 21:05
  Looking for a non-FFMPEG/non-Lame Python audio converter for Android [closed] - Marcelcolt Newest 'ffmpeg' Questions - Stack Overflow
  So as the title suggests, I'm looking for another way to convert audio. I am currently using PyTubeFix to download audio from YouTube. That works awesome, but it downloads in M4A. I would really like it in MP3. Most converter libraries and packages use FFMPEG. I've tried to download it through Termux and PyDroid3, but that doesn't work. I've tried to compile it for Android with NDK, but I am so lost in what I am supposed to be doing... Same goes for Lame. I've been at it for over a week now, but I can't find any other way to convert.  (...)
• 19:05
  FFmpeg WASM Custom build : defining custom flags - Ettur Newest 'ffmpeg' Questions - Stack Overflow
  I wish to create custom ffmpeg.wasm build Now the official GUIDE show four commands "make dev" "make prd" etc So I cloned THE REPO and ran "make prd". It did build, but obviously, this build was with default settings, whatever exactly they made be. So pardon my stupidity, as I cannot figure out how / where / what do I edit to set the custom flags about what I want to be included / excluded in the build? -- GUIDE, THE REPO
• 13:02
  Use FFMPEG and i have one video 30sec i want mulipal trimming - aryan patel Newest 'ffmpeg' Questions - Stack Overflow
  i want this video trim mulipal like 0.2 sec to 0.5, 0.10sec to 0.14sec and 0.23 to 0.29sec this video trimed success after i want this trimed 3 video merge and create one video and save that any one can know me how
• 12:59
  ffmpeg decoding mixing frames - Paulo Morgado Newest 'ffmpeg' Questions - Stack Overflow
  I'm using FFmpeg.AutoGen in a .NET 8.0 application for decoding H264 and JPEG. Every usage uses its own instance (there are no shared objects) and there isn't simultanous use of each object. However, they can be used from different threads. But I'm getting the encoded results with mixed data from all sources. It happens mostly for the same origin codeec, but not esclusivelly. I have a base class that looks like this: public abstract unsafe class Decoder : IDisposable protected readonly object sync = new(); protected AVCodecContext* (...) -- FFmpeg.AutoGen
• 13:26
  How to restream IPTV playlist with Nginx RTMP, FFmpeg, and Python without recording, but getting HTTP 403 error? [closed] - boyuna1720 Newest 'ffmpeg' Questions - Stack Overflow
  I have an IPTV playlist from a provider that allows only one user to connect and watch. I want to restream this playlist through my own server without recording it and in a lightweight manner. I’m using Nginx RTMP, FFmpeg, and Python TCP for the setup, but I keep getting an HTTP 403 error when trying to access the stream. Here’s a summary of my setup: Nginx RTMP: Used for streaming. FFmpeg: Used to handle the video stream. Python TCP: Trying to handle the connection between my server and the IPTV source. #!/usr/bin/env python3 import sys import (...)
• 06:46
  How to automatically rotate video based on camera orientation while recording? - jestrabikr Newest 'ffmpeg' Questions - Stack Overflow
  I am developing Mediasoup SFU and client web app, on the server I am recording client's stream by sending it to FFmpeg as plain RTP. FFmpeg creates HLS recording (.m3u8 and .ts files), because I need to be able to switch between WebRTC live stream and HLS recording before live stream ends. My problem is that, when I am testing the app and I rotate my phone 90 degrees, the recording's aspect ratio stays the same but the image is rotated (as shown on images 1.1, 1.2 and 1.3 below). I need for it to change aspect ratio dynamically according to camera orientation. How can I do (...) -- , , , ,
• 03:39
  How to do low-latency streaming on FFMPEG - Wewd Newest 'ffmpeg' Questions - Stack Overflow
  I'm attempting to make video streaming with latency as low as possible at 50ms or lower if possible, assuming that it's streaming over LAN. The latency is like 200-400ms with the config. I'm not sure what's the problem is. ffmpeg -init_hw_device d3d11va \\ -filter_complex "ddagrab=0:output_fmt=auto:framerate=60" \\ -c:v av1_amf -usage ultralowlatency -rc 1 -async_depth 1 -g 60 -fps_mode vfr \\ -fflags nobuffer -flags low_delay -strict experimental \\ -sdp_file stream.sdp -f rtp rtp://225.0.0.1:55555 stream.sdp v=0 o=- 0 0 IN IP4 (...)
• 03:14
  Why does my yuva444p video always lose alpha channel after transcoding to vp9? - Ian Ye Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert a video with alpha channel using FFmpeg, but the transparency information gets lost in the output. Here is the input video (prores, yuva444p) detail with ffprobe: Stream #0:1[0x2](und): Video: prores (4444) (ap4h / 0x68347061), yuva444p12le(bt709), 360x480, 73314 kb/s, 60.13 fps, 60 tbr, 600 tbn (default) Metadata: creation_time : 2019-05-21T21:23:03.000000Z handler_name : Core Media Video vendor_id : appl encoder : Apple ProRes 4444 And my command is below: ffmpeg -i alpha_prores.mov -c:v libvpx-vp9 -pix_fmt (...)
• 00:13
  How can I build a custom version of opencv while enabling CUDA and opengl? - Josh Newest 'ffmpeg' Questions - Stack Overflow
  I have a hard requirement of python3.7 for certain libraries (aeneas & afaligner). I've been using the regular opencv-python and ffmpeg libraries in my program and they've been working find. Recently I wanted to adjust my program to use h264 instead of mpeg4 and ran down a licensing rabbit hole of how opencv-python uses a build of ffmpeg with opengl codecs off to avoid licensing issues. x264 is apparently opengl, and is disabled in the opencv-python library. In order to solve this issue, I built a custom build of opencv using another custom build of ffmpeg both (...)

31 mars

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

• 16:18
  FFMPEG demuxer seek error in Chrome range slider with AWS audio file - Tania Rascia Newest 'ffmpeg' Questions - Stack Overflow
  I'm encountering an issue where if you click or slide enough on a range slider in Chrome, it will eventually stop working and give this error, an error 2 (network error): PIPELINE_ERROR_READ: FFmpegDemuxer: demuxer seek failed If I google this error, I only find the Chrome source code: Line 1749 of Chrome source code First, this issue only happens in Chrome, not Firefox. Second, I can only get it to happen with an encrypted file from AWS, which I can't get into a sandbox, so the sandbox I made will never encounter that error with the random audio file I (...) -- Line 1749 of Chrome source code, Here's the sandbox.
• 15:04
  How to fix av_interleaved_write_frame() broken pipe error in php - Adekunle Adeyeye Newest 'ffmpeg' Questions - Stack Overflow
  I have an issue using ffmpeg to stream audio and parse to google cloud speech to text in PHP. It returns this output. I have tried delaying some part of the script, that did not solve it. I have also checked for similar questions. however, they are mostly in python and none of the solutions actually work for this. built with gcc 8 (GCC) cpudetect libavutil 56. 31.100 / 56. 31.100 libavcodec 58. 54.100 / 58. 54.100 libavformat 58. 29.100 / 58. 29.100 libavdevice 58. 8.100 / 58. 8.100 libavfilter 7. 57.100 / 7. 57.100 libavresample 4. 0. (...) --
• 14:15
  RTSP Frame Grabbing creates smeared , pixeled and corrupted images - Robob Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to capture a single frame per second from a RTSP stream with following command ffmpeg -i rtsp://XXX -q:v 1 -vf fps=fps=1 -strftime 1 ZZZZ\\%H_%M_%S.jpg But some of the frames are smeared ,pixeled and corrupted - this effect is drastically increases if rtsp resolution is increased (if the resolution is decreased for example to 720P most of the frames are OK) I have to say that playing same rtsp stream in VLC or FFPLAY is flowless. How I can fix it to grab better quality Thanks in (...) -- ,
• 12:41
  I have a problem with my input resampling FFmpeg audio code [closed] - Jaime Samper Newest 'ffmpeg' Questions - Stack Overflow
  I,ve tried to do a resampling with ffmpeg, but i found issues all the time in my code. firt, i tried to get the imput channel layout but av_channel_layout_default(&layout, audio_codecpar->nb_channels) tells me, "there´s not nb_channels menber. so i put the resampling code manually cause I know is stereo. av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", codec_ctx->sample_fmt, 0); av_opt_set_int(swr_ctx, "in_channel_layout", AV_CH_LAYOUT_STEREO, 0); av_opt_set_int(swr_ctx, "in_sample_rate", codec_ctx->sample_rate, 0); av_opt_set_sample_fmt(swr_ctx, (...)
• 10:35
  FFmpeg Non-monotonous DTS in output stream - Tim Autin Newest 'ffmpeg' Questions - Stack Overflow
  I need to record a h265 4K RTSP stream into 1/2h segments. I'm using this command: ffmpeg \\ -i "rtsp://..." \\ -vcodec copy \\ -segment_list /path/to/segments_2025-03-31_09-18-45.153_1.txt \\ -f segment -reset_timestamps 1 -segment_time 1800 -strftime 1 \\ "/path/to/segment_%y%m%d%H%M%S.mp4" It works but: the recorded files show some artifact these warnings are print in the console when starting recording: [segment ⓐ 0x6171d02eeac0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the (...)

30 mars

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

• 18:50
  Restream with FFmpeg [closed] - boyuna1720 Newest 'ffmpeg' Questions - Stack Overflow
  I have iptv playlist file with inside VODs and Channel links. I want to restream it from my server becouse provider allows only one user to watch. When i am using Nginx with RTMP and FFmpeG i am getting this error. please tell me if anyone can help to fix this issue. ffmpeg -re -i "http://excel90095.cdn-akm.me:80/23a9a158d8d8/2dd736a985/325973" -c:v copy -c:a aac -f flv "rtmp://localhost/live/test" --
• 21:08
  I Need Help Making Our Driver Station Video Feed Faster [closed] - Joshua Green Newest 'ffmpeg' Questions - Stack Overflow
  I am currently using FFmpeg on a Raspberry Pi 4 Model B using an ArduCam UC-844 Rev. B as the camera. We do not need any audio and I don't care about the quality of the video. All we need is for the stream to be as fast as possible. The video from the camera is being streamed to the driver station via FFmpeg and being picked up on the driver station via FFplay. Right now we are getting a delay that we wish could go away or be significantly shortened. These are the commands we are using. Raspberry Pi: ffmpeg -i /dev/video0 -c:v libx264 -crf 45 -maxrate 1M -bufsize 1.2M (...)
• 18:34
  I Need Help Making Our FIRST Robotics Competition Driver Station Video Feed Faster [closed] - Joshua Green Newest 'ffmpeg' Questions - Stack Overflow
  I am currently using FFmpeg on a Raspberry Pi 4 Model B using an ArduCam UC-844 Rev. B as the camera. We do not need any audio and I don't care about the quality of the video. All we need is for the stream to be as fast as possible. The video from the camera is being streamed to the driver station via FFmpeg and being picked up on the driver station via FFplay. Right now we are getting a delay that we wish could go away or be significantly shortened. These are the commands we are using. Raspberry Pi: ffmpeg -i /dev/video0 -c:v libx264 -crf 45 -maxrate 1M -bufsize 1.2M (...)
• 13:12
  ffmpeg produces video I cannot load on latest Safari on iOS - Michael Heuberger Newest 'ffmpeg' Questions - Stack Overflow
  When I encode two videos (mp4 and webm) with these ffmpeg parameters (based on images), I cannot play the mp4 it produces on latest Safari (inside a tag) inside my iPhone 6s using the latest iOS too: ffmpeg -framerate 15.2 -f image2 -thread_queue_size 64 -i /home/michael-heuberger/abcd/frames/%d.webp -y -an -vcodec libx264 -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -crf 16 -preset fast -profile:v baseline -pix_fmt yuv420p -movflags +faststart /home/michael-heuberger/abcd/videomail_good.mp4 -vcodec libvpx (...) -- www.videomail.io
• 07:57
  Create a video from JPG without have all pictures at begining with ffmpeg - Chklang Newest 'ffmpeg' Questions - Stack Overflow
  I have a game which can create some screenshots, and I want to transform them to mp4 video. So I've the next command: ffmpeg -framerate 15 -i %06d.png -s hd1080 -vcodec libx264 -r 30 timelapse.mp4 But my game lasts 8h, so, after have auto-compress pictures, I've more than 9To of pictures. So I want to start the ffmpeg process before the end of pictures generation, so I want that ffmpeg wait the next picture to digest it. How can I do (...)

29 mars

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

• 15:29
  FFMEG option scale=-1 and scale=-2 - smal Newest 'ffmpeg' Questions - Stack Overflow
  I tried to convert a video and resize it with scale=-1:720, but got the error "width not divisible by 2". And I solved it with: scale=-2:720. What are the differences between scale=-1:720 and scale=-2:720
• 07:47
  How to get webam frames one by one but also compressed? - Vorac Newest 'ffmpeg' Questions - Stack Overflow
  I need to grab frames from the webcam of a laptop, transmit them one by one and the receiving side stitch them into a video. I picked ffmpeg-python as wrapper of choice and the example from the docs works right away: #!/usr/bin/env python # In this file: reading frames one by one from the webcam. import ffmpeg width = 640 height = 480 reader = ( ffmpeg .input('/dev/video0', s='x'.format(width, height)) .output('pipe:', format='rawvideo', pix_fmt='yuv420p')  (...) -- example, the docs

28 mars

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

• 05:10
  Incorrect length of video produced with ffmpeg libraries [closed] - ivan.ukr Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing a C program that takes series of PNG images and converts them into a video. Video consists of the initial black screen and then each of those images, shown for the same constant amount of time, say 200 ms. I'm using libx264 as codec and mp4 as output format. I'm compiling my program with GCC 12 on Ubuntu 22.04 LTS. I'm using ffmpeg version from Ubuntu repositories. In order to achieve above behavior I've set time base to 1/5 in the both stream and codec. // assume imageDuration = 200 AVRational timeBase; av_reduce(&timeBase.num, (...)
• 13:27
  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 (...)
• 01:16
  Empty audio backends for torchaudio list audio backends, with ffmpeg installed on system libraries [closed] - Alberto Agudo Dominguez Newest 'ffmpeg' Questions - Stack Overflow
  I installed torchaudio 2.5.1 and a system install of ffmpeg on Windows and get: PS C:\\Users\\> ffmpeg -version ffmpeg version 2025-01-05-git-19c95ecbff-essentials_build-www.gyan.dev Copyright (c) 2000-2025 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 --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth (...)
• 09:06
  Including FFmpeg.framework Into My IOS App - Alpi Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to manually integrate ffmpegkit.framework into my Expo Bare Workflow iOS app (built with React Native + native modules via Xcode) because the ffmpegkit will be deprecated and the binaries will be deleted. So far I've downloaded the latest LTS release of FFmpegkit from here. I've created 3 files: FFmpegModule.m , FFmpegModule.swift and SoundBud-Bridging-Header. Added the frameworks to my projectDir/ios manually, which shows in my XCode under projectDir/Frameworks Added all the frameworks into "Frameworks, Libraries and Embedded (...) -- here
• 05:15
  How to add info to a video and share it with others in React Native - Sanjay Kalal Newest 'ffmpeg' Questions - Stack Overflow
  I am looking for a solution in which I can pick a video from the gallery and add info or overlay inside it and then share the video with the added info in react native. I tried using ffmpeg but it is not working properly I need a proper solution in which I can peak the video, add info to it and share it. I tried ffmpeg but it is not working.
• 05:04
  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 (...)

27 mars

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

• 22:30
  How to initialize video decoder with a already decoded frame? - Ragdoll Car Newest 'ffmpeg' Questions - Stack Overflow
  Let's say I have an FFmpeg video decoder x264 initially initialized with some parameters. I am using C++ in my scenario. In normal conditions we push an encoded I-frame into such decoder and then referencing encoded P-frames. I have a special case where my I-frame is already decoded. So in my case I want to: push already decoded I-frame into my decoder push referencing encoded P-frames into my decoder How can I initialize the decoder state with already decoded I-frame? Currently to bypass these limitations I have to: create a new (...)
• 22:01
  Audio delay after resuming FFmpeg on Windows - Iman Sajadpur Newest 'ffmpeg' Questions - Stack Overflow
  I'm building a screen recording software for Windows using Python. I use FFmpeg for recording and psutil to pause and resume the process. Here is a sample of my code: import psutil import subprocess process = subprocess.Popen([ 'ffmpeg', '-y', '-rtbufsize', '100M', '-f', 'gdigrab', '-thread_queue_size', '1024', '-probesize', '50M', '-r', '24', '-draw_mouse', '1',  (...)
• 17:52
  using FFMPEG with silencedetect to remove audio silence - Zahlii Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use the following command with the latest ffmpeg build to remove silence from my .mp3 files: ffmpeg -i SILENCE.mp3 -af silencedetect=n=-50dB:d=1 -y -ab 192k SILENCE_OUT.mp3 However, the following output is produced: ffmpeg version N-66154-g1654ca7 Copyright (c) 2000-2014 the FFmpeg developers built on Sep 5 2014 22:10:38 with gcc 4.8.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass (...)
• 17:29
  How can I remove silence from an MP3 programmatically? - Benjamin Oakes Newest 'ffmpeg' Questions - Stack Overflow
  I have MP3 files that sometimes have silence at the end. I would like to remove this silence automatically. From what I can tell, it is "perfect" silence (0 amplitude), not background noise. The length of the content and the silence varies. I found some other questions about cropping to the first 30 seconds or cropping to X and X+N seconds using ffmpeg. I would think I could use a similar approach, as long as I have a way to find when the silence starts. How would I do that programatically? For example, one possible solution would be to have a command that finds (...)
• 12:10
  Rewrite video with ffmpeg with given non-equidistant times for each frame - Aleph0 Newest 'ffmpeg' Questions - Stack Overflow
  In one of my projects it is necessary to synchronize a video with a different datasource. I already have the video as a mts file. I also exactly know which frame will be displayed at which time. This times are not necessarily equidistant. For simplicity assume that my video consists just out of 5 frames: Frame No Time 1 1s 2 3s 3 5s 4 8s 5 12s What kind of ffmpeg command using a list of times give by a simple text file can be used to (...)
• 10:28
  How can I display an image from Uint8List with the format AVFormat.RGBA8888 more quickly in Flutter? - Salawesh Newest 'ffmpeg' Questions - Stack Overflow
  I'm looking to display images as quickly as possible. input data is in the form of Uint8List from dart:typed_data, data is encoded in AVFormat.RGBA8888 from ffmpeg. I'm looking for a solution to improve the performance of my graphics rendering code. And to see if it's possible to do it in a thread (isolate or compute). Here's my current working code. final buffer = await ui.ImmutableBuffer.fromUint8List(data.data); final descriptor = ui.ImageDescriptor.raw( buffer, width: data.width, height: data.height, pixelFormat: (...)
• 09:12
  How to manage hls in Nginx RTMP module - syrkandonut Newest 'ffmpeg' Questions - Stack Overflow
  I would like to manage the hls broadcast on request, like stop/start or some other way in Nginx RMTP module. My rtmp server needs to support many cameras, however, when it does ffmpeg exec for 200-300 rtmp streams, this is very difficult for the processor, so I would like to execute the ffmpeg command in parallel only on request, how could this be done? Rtmp Server rtmp server listen 1935; chunk_size 8192; application live live on; record off; drop_idle_publisher 10s; allow publish all; on_publish (...)
• 03:40
  VLC dead input for RTP stream - CaptainCheese Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on creating an rtp stream that's meant to display live waveform data from Pioneer prolink players. The motivation for sending this video out is to be able to receive it in a flutter frontend. I initially was just sending a base-24 encoding of the raw ARGB packed ints per frame across a Kafka topic to it but processing this data in flutter proved to be untenable and was bogging down the main UI thread. Not sure if this is the most optimal way of going about this but just trying to get anything to work if it means some speedup on the frontend. So the issue the (...)