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av_get_audio_frame_duration: add ADPCM_AFC

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-11-26 11:59:44 +00:00
parent c5607dfddc
commit 5a3370816f
1 changed files with 2 additions and 0 deletions
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2
libavcodec/utils.c
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@ -2465,6 +2465,8 @@ int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes)
if (ch > 0) {
/* calc from frame_bytes and channels */
switch (id) {
case AV_CODEC_ID_ADPCM_AFC:
return frame_bytes / (9 * ch) * 16;
case AV_CODEC_ID_ADPCM_4XM:
case AV_CODEC_ID_ADPCM_IMA_ISS:
return (frame_bytes - 4 * ch) * 2 / ch;