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matroskadec: Improve TTA duration calculation

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Calculate the duration as accurately as possible to improve decoding of samples
where the last frame is smaller than the rest.

Signed-off-by: James Almer <jamrial@gmail.com>
Approved-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit af248fa1174200acb537a6ab1198bb2fed38e884)

Conflicts:
	libavformat/matroskadec.c
This commit is contained in:
James Almer 2013-08-17 14:48:33 -03:00
parent 11bc88eebd
commit c447047117
1 changed files with 1 additions and 1 deletions
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2
libavformat/matroskadec.c
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@ -1615,7 +1615,7 @@ static int matroska_read_header(AVFormatContext *s)
avio_wl16(&b, track->audio.channels);
avio_wl16(&b, track->audio.bitdepth);
avio_wl32(&b, track->audio.out_samplerate);
avio_wl32(&b, matroska->ctx->duration * track->audio.out_samplerate);
avio_wl32(&b, av_rescale((matroska->duration * matroska->time_scale), track->audio.out_samplerate, AV_TIME_BASE * 1000));
} else if (codec_id == CODEC_ID_RV10 || codec_id == CODEC_ID_RV20 ||
codec_id == CODEC_ID_RV30 || codec_id == CODEC_ID_RV40) {
extradata_offset = 26;