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mov: Fix wrong timestamp generation for fragmented movies that have time offset caused by the first edit list entry.

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Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Yusuke Nakamura 2011-05-13 23:46:48 +09:00 committed by Anton Khirnov
parent d8999306e5
commit f33a6a22b4
1 changed files with 5 additions and 4 deletions
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9
libavformat/mov.c
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@ -1532,8 +1532,9 @@ static void mov_build_index(MOVContext *mov, AVStream *st)
/* adjust first dts according to edit list */
if (sc->time_offset && mov->time_scale > 0) {
int rescaled = sc->time_offset < 0 ? av_rescale(sc->time_offset, sc->time_scale, mov->time_scale) : sc->time_offset;
current_dts = -rescaled;
if (sc->time_offset < 0)
sc->time_offset = av_rescale(sc->time_offset, sc->time_scale, mov->time_scale);
current_dts = -sc->time_offset;
if (sc->ctts_data && sc->stts_data &&
sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
/* more than 16 frames delay, dts are likely wrong
@ -2063,7 +2064,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (flags & 0x001) data_offset = avio_rb32(pb);
if (flags & 0x004) first_sample_flags = avio_rb32(pb);
dts = st->duration;
dts = st->duration - sc->time_offset;
offset = frag->base_data_offset + data_offset;
distance = 0;
av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
@ -2092,7 +2093,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
offset += sample_size;
}
frag->moof_offset = offset;
st->duration = dts;
st->duration = dts + sc->time_offset;
return 0;
}