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ffmpeg is generating an out-of-sync audio/video file ...
https://stackoverflow.com/questions/8844460/ffmpeg-is-generating-an-out-of-sync-audio-video-file
Show activity on this post. I am trying to convert a flv video to mp4 using a264, but the result video has a out of sync audio/video. The audio seems ok but the video seems slow and therefore out of sync with the audio. Desktop /opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict experimental -fpre /opt ...
Correcting for audio/video sync issues with the ffmpeg ...
https://wjwoodrow.wordpress.com/2013/02/04/correcting-for-audiovideo-sync-issues-with-the-ffmpeg-programs-itsoffset-switch/
Correcting for audio/video sync issues with the ffmpeg program’s ITSOFFSET switch. Posted on February 4, 2013 by W. Jason Woodrow. The ffmpeg program has numerous “switches” that help to adjust and convert audio and video files. Some of them are not explained very well in the documentation, and many websites have confusing postings by ...
FFMPEG Fix Audio Sync – Uly.me
https://uly.me/ffmpeg-fix-audio-sync/
If you have a video with audio sync issues, you can easily fix it using ffmpeg. It takes 2 inputs: the filename and delay: 0.100 is 100 ms or 0.1 seconds. Output file has -fixed appended to it. It’s fast. Only takes 2-3 seconds to process a 1.5 hour recording. Here’s the script.
Mencoder // ffmpeg flv file Audio-video sync problem ...
https://forum.videohelp.com/threads/304491-Mencoder-ffmpeg-flv-file-Audio-video-sync-problem
Mencoder // ffmpeg flv file Audio-video sync problem + Reply to Thread. Results 1 to 6 of 6 Mencoder // ffmpeg flv file Audio-video sync problem. Thread Tools. ... VIDEO is very fast ... compared to AUDIO. This is my problem. I want proper sync. Your help is highly appreciated Quote . 21st Apr 2009 21:21 #2. tomlee59. View Profile View Forum ...
Correcting for audio/video sync issues with the ffmpeg ...
https://tdngan.wordpress.com/2015/10/13/correcting-for-audiovideo-sync-issues-with-the-ffmpeg-programs-itsoffset-switch-2/
The delay is only .15 seconds. CASE 2: Video happens before audio (aka “need to delay video stream 0”): ffmpeg -i clip.mp4 -itsoffset 0.150 -i clip.mp4 -vcodec copy -acodec copy -map 0:1 -map 1:0 output.mp4. The “itsoffset” in the above example is placed before file 1.
[SOLVED] ffmpeg audio/video sync issues
https://www.linuxquestions.org/questions/linux-software-2/ffmpeg-audio-video-sync-issues-4175481486/
The problem is the audio is out of sync right from the start (sound comes after the video). I can fix it temporarily using the -itsoffset option of ffmpeg, but after a while it just goes out of sync again. Tried writing to an mkv file instead of …
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