avformat/oggenc: always use the time base stored in the theora header
Fixes ticket #5704 Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>
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@ -533,6 +533,14 @@ static int ogg_write_header(AVFormatContext *s)
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bytestream_put_buffer(&p, cstr, 6);
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if (st->codecpar->codec_id == AV_CODEC_ID_THEORA) {
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int den = AV_RB32(oggstream->header[0] + 22), num = AV_RB32(oggstream->header[0] + 26);
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/* Make sure to use time base stored in the Theora stream header to write
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correct timestamps */
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if (st->time_base.num != num || st->time_base.den != den) {
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av_log(s, AV_LOG_DEBUG, "Changing time base from %d/%d to %d/%d\n",
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st->time_base.num, st->time_base.den, num, den);
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avpriv_set_pts_info(st, 64, num, den);
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}
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/** KFGSHIFT is the width of the less significant section of the granule position
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The less significant section is the frame count since the last keyframe */
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oggstream->kfgshift = ((oggstream->header[0][40]&3)<<3)|(oggstream->header[0][41]>>5);
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