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Move WMA case from ff_get_audio_frame_size() to av_get_audio_frame_duration()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-08-14 02:42:14 +02:00
parent ed488d1535
commit 7b59217b60
2 changed files with 8 additions and 6 deletions
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7
libavcodec/utils.c
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@ -3310,6 +3310,13 @@ int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
if (avctx->frame_size > 1 && frame_bytes)
return avctx->frame_size;
//For WMA we currently have no other means to calculate duration thus we
//do it here by assuming CBR, which is true for all known cases.
if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) {
if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2)
return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate;
}
return 0;
}