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ad_ffmpeg: prefer codec to container samplerate for ffaac

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Container-level information can be unreliable for AAC because of SBR
handling problems, so use the samplerate value from the codec
instead.
This commit is contained in:
Uoti Urpala 2010-03-21 18:45:20 +02:00
parent 4a70750f5f
commit faea4ef439
1 changed files with 6 additions and 1 deletions
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7
libmpcodecs/ad_ffmpeg.c
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@ -142,7 +142,12 @@ static int init(sh_audio_t *sh_audio)
mp_msg(MSGT_DECAUDIO, MSGL_FATAL, "Unsupported sample format\n");
return 0;
}
if(sh_audio->wf){
/* If the audio is AAC the container level data may be unreliable
* because of SBR handling problems (possibly half real sample rate at
* container level). Default AAC decoding with ad_faad has used codec-level
* values for a long time without generating complaints so it should be OK.
*/
if (sh_audio->wf && lavc_context->codec_id != CODEC_ID_AAC) {
// If the decoder uses the wrong number of channels all is lost anyway.
// sh_audio->channels=sh_audio->wf->nChannels;
if (sh_audio->wf->nSamplesPerSec)