[FFmpeg-trac] #6664(undetermined:new): ffmpeg concat audio not in sync
FFmpeg
trac at avcodec.org
Thu Sep 14 20:51:29 EEST 2017
#6664: ffmpeg concat audio not in sync
-------------------------------------+-------------------------------------
Reporter: tcwebadmin | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: concat, | Blocked By:
ffmpeg | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug: when using concat in 3.3.4 the audio is out of sync.
How to reproduce:
{{{
% ffmpeg -threads 0 -f concat -safe 0 -i /tmp/files.txt -vf
"scale=iw*min(560/iw\,320/ih):ih*min(560/iw\,320/ih),
pad=560:320:(560-iw*min(560/iw\,320/ih))/2:(320-ih*min(560/iw\,320/ih))/2"
-preset veryslow -crf 15 -acodec libmp3lame -af aresample=resampler=soxr
-ar 44100 -aspect 16:9 -async 1 -qp 20 -pix_fmt yuv420p -framerate 30 -ab
128k -ac 1 -vcodec libx264 -max_muxing_queue_size 9999 -movflags
+faststart /tmp/final_output_video.mp4 -y
ffmpeg version 3.3.4
built on CentOS
}}}
Please refer to https://stackoverflow.com/questions/45969083/ffmpeg-
concat-with-video-using-image-background for complete description of bug.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6664>
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