[FFmpeg-user] audio delay while converting flv to avi
ml at access-dev.com
Sat Feb 18 10:52:26 CET 2012
this command line produces and audio delay of 2-3 seconds
> /usr/bin/ffmpeg -loglevel 0 -i 202.flv -ar 44100 -b 700k -sameq -f
> avi -ab
> 160k 202.avi
Check with "async" option:
ffmpeg -loglevel 0 -async 1 -i 202.flv -f avi -b 700k -sameq -ab 160k
-ar 44100 202.avi
see also "shortest" option -- finish encoding when the shortest input
Thank you, the audio has perfect sync now.
But I wonder why this requires an option, in most cases, users want the
audio to be synced with the video isnt't it ?
Also , it's the first time I encounter this problem and I really want
to know why this happens.
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