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Having a problem with audio sync in x264 conversions ...
https://forum.videohelp.com/threads/357757-Having-a-problem-with-audio-sync-in-x264-conversions#:~:text=As%20long%20as%20I%20do%20not%20format%20the,the%20encode%20by%20a%20constant%20factor%2C%20not%20progressive.
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
The audio seems ok but the video seems slow and therefore out of sync with the audio. Here is the command I am running: /opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict experimental -fpre /opt/local/share/ffmpeg/libx264-lossless_slow.ffpreset -ab 44k -threads 0 -crf 23 complaint.mp4 And the output:
audio is out of sync after conversion with ffmpeg ...
https://forum.videohelp.com/threads/354830-audio-is-out-of-sync-after-conversion-with-ffmpeg
Hello. i have a problem with this ffmpeg conversion Comman:-r 25 -i <Input> -vcodec libx264 -preset medium -crf 15 -c:a copy <Output>.avi the problem is …
ffmpeg audio out of sync and error at end of run · Issue ...
https://github.com/bytedeco/javacv/issues/128
According to FFmpeg's documentation, it looks like we can check for corrupted frames this way: ((AVFrame)frame.opaque).flags() & AV_FRAME_FLAG_CORRUPT. Sure, FFmpegFrameRecorder wasn't based on ffmpeg.c because the latter is GPL while the former isn't. In any case, if you don't have time to try out things with FFmpegFrameRecorder, and ffmpeg.c …
FFMPEG Fix Audio Sync – Uly.me
https://uly.me/ffmpeg-fix-audio-sync/
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 …
Live audio/video gets out of sync when the output ... - FFmpeg
https://trac.ffmpeg.org/ticket/2445
The output test.flv file is out of sync by a second or two, but delay seems constant afterward. 4- Of course, piping to "ffmpeg -i - -codec copy -f flv rtmp://my.server.tld" causes the same initial delay, which breaks my live stream just as much as using rtmp://server directly in the original ffmpeg command.
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