[FFmpeg-user] asetnsamples loses channel layout?

Stefano Sabatini stefasab at gmail.com
Sat Sep 1 00:09:44 CEST 2012

On date Thursday 2012-08-30 14:45:06 -0600, Roger Pack encoded:
> Hello.
> I noticed that:
> ffmpeg.exe -filter_complex "amovie=mono.wav [l] ; amovie=mono.wav [r]
> ; [l] [r] amerge" -y yo.wav
> works fine, but if I add "setnsamples" into each audio stream, I get
> the following:
> $ ffmpeg.exe -filter_complex "amovie=mono.wav [l] ; amovie=mono.wav
> [r] ; [l] asetnsamples=n=1000 [l1]; [r] asetnsamples=n=1000 [r1]; [l1]
> [r1] amerge" -y yo.wav

This is actually a bug in amerge, it is the same if you change
asetnsamples with anull.
ffmpeg-user random tip #0
Please try to use a reasonably recent version of ffmpeg before asking
questions to ffmpeg-user: older versions aren't supported here!

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