[FFmpeg-user] Can not resample 6 channels @ 48000 Hz to 6 channels @ 48000
mike.scheutzow at alcatel-lucent.com
Mon Mar 28 16:47:36 CEST 2011
Bernd Butscheidt wrote:
> So question 1:
> Why does ffmpeg not recognize the given audio correctly (assuming mediainfo does
> this job correctly)?
ffmpeg does recognize it. But ffmpeg is very limited in the processing
it can do with audio having more than 2 channels.
As of today, it seems that if you ask ffmpeg to *decode* ac3 5.1, then
it is always downmixed to 2 channels. If anyone knows different, I'd
like to hear about it.
> Question 2:
> Why does the newer ffmpeg version not proceed with the reencode giving the error
> message in the subject?
The specific error you got is telling you that the ffmpeg audio
resampler is not a remixer: it does not know how to change 2 channel
audio into 6 channel audio.
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