[FFmpeg-devel] [PATCH] examples: add resampling_audio.c file

[Michael Niedermayer]

On Fri, Nov 30, 2012 at 11:42:43PM +0100, Stefano Sabatini wrote:
> On date Friday 2012-11-30 19:58:51 +0100, Stefano Sabatini encoded:
> > ---
> >  doc/examples/Makefile           |    3 +-
> >  doc/examples/resampling_audio.c |  208 +++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 210 insertions(+), 1 deletion(-)
> >  create mode 100644 doc/examples/resampling_audio.c
> 
> Upped.
> 
> Note, this doesn't work if I change destination layout MONO ->
> SURROUND, I got:
> $ resampling_audio out.raw
> ...
> Resampling succeeded. Play the output file with the command:
> ffplay -f s16le -channel_layout 7 -ac 3 -ar 44100 out.raw
> $ ffplay -f s16le -channel_layout 7 -ac 3 -ar 44100 out.raw
> ffplay version N-46906-ga5e382a Copyright (c) 2003-2012 the FFmpeg developers
> [...]
> [s16le @ 0x7f11080042d0] Estimating duration from bitrate, this may be inaccurate
> Input #0, s16le, from 'out.raw':
>   Duration: 00:00:10.01, start: 0.000000, bitrate: 2116 kb/s
>     Stream #0:0: Audio: pcm_s16le, 44100 Hz, 3.0, s16, 2116 kb/s
> SDL_OpenAudio (3 channels): 1 (mono) and 2 (stereo) channels supported
> [pcm_s16le @ 0x7f1108000ad0] Invalid PCM packet, data has size 2 but at least a size of 6 was expected
> 
> and I got distorted sound. Any hint?

try -channels 3

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Many that live deserve death. And some that die deserve life. Can you give
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even the very wise cannot see all ends. -- Gandalf
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