Ronald S. Bultje wrote:
Hi,
On Wed, Mar 3, 2010 at 5:58 AM, Igor R <[email protected]> wrote:
I try to use the built-in AMR decoder.
After I call avcodec_decode_audio3(), the AVCodecContext::sample_fmt
is set by the decoder to SAMPLE_FMT_FLT; sample_rate and channels are
left zero.
Is there any possibility to get SAMPLE_FMT_S32 sample format, as well
as to know the sample-rate, just like it happens when decoding MP3?
(It seems that SDL, which I use to play the output PCM, doesn't know
to process floating-point samples.)
Use av_audio_resample_init(), audio_resample() and so on to convert
audio formats.
Samplerate and channels should be set by the demuxer, not the decoder.
They are not part of the AMR bitstream.
Ronald
AMR only supports mono/8000Hz so the decoder can set it.
MvH
Benjamin Larsson
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