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simplify

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Originally committed as revision 8427 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-03-17 02:03:59 +00:00
parent 41c8a56a14
commit 14eb3345ba
1 changed files with 7 additions and 12 deletions
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19
libavformat/utils.c
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@ -618,21 +618,16 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
if (presentation_delayed) {
/* DTS = decompression time stamp */
/* PTS = presentation time stamp */
if (pkt->dts == AV_NOPTS_VALUE) {
/* if we know the last pts, use it */
if(st->last_IP_pts != AV_NOPTS_VALUE)
st->cur_dts = pkt->dts = st->last_IP_pts;
else
pkt->dts = st->cur_dts;
} else {
st->cur_dts = pkt->dts;
}
if (pkt->dts == AV_NOPTS_VALUE)
pkt->dts = st->last_IP_pts;
if (pkt->dts == AV_NOPTS_VALUE)
pkt->dts = st->cur_dts;
/* this is tricky: the dts must be incremented by the duration
of the frame we are displaying, i.e. the last I or P frame */
if (st->last_IP_duration == 0)
st->cur_dts += pkt->duration;
else
st->cur_dts += st->last_IP_duration;
st->last_IP_duration = pkt->duration;
st->cur_dts = pkt->dts + st->last_IP_duration;
st->last_IP_duration = pkt->duration;
st->last_IP_pts= pkt->pts;
/* cannot compute PTS if not present (we can compute it only