[FFmpeg-user] Can not resample 6 channels @ 48000 Hz to 6 channels @ 48000
bbutscheidt at yahoo.de
Sun Mar 27 22:24:47 CEST 2011
From: Mike Scheutzow <mjs973 at optonline.net>
To: FFmpeg user questions and RTFMs <ffmpeg-user at ffmpeg.org>
Sent: Sonntag, den 27. März 2011, 16:52:49 Uhr
subject: Re: [FFmpeg-user] Can not resample 6 channels @ 48000 Hz to 6 channels
> Did you notice that the input to the resampler is "ch:2"? But it seems that
>version of ffmpeg does not warn you that something bad is being done.
Yes, I was not clear about this and posed two question. Indeed neither of the
two ffmpeg versions recognize the audio as mediainfo does it - which is
5.1-ac3-audio. But at least the encoding starts with the older one.
>If your goal is to have 5.1 audio in the output file, then use '-acodec copy'.
>Do not decode the audio, then try to re-encode it.
The goal behind my example is actually to reencode the audio - for reasons which
go far beyond this topic.
So question 1:
Why does ffmpeg not recognize the given audio correctly (assuming mediainfo does
this job correctly)?
Why does the newer ffmpeg version not proceed with the reencode giving the error
message in the subject?
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