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avformat/mux: change avoid_negative_ts code to support later addition of AVStreams

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-04-26 11:37:42 +02:00
parent 30579b7ef0
commit 060f14f493
1 changed files with 16 additions and 12 deletions
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28
libavformat/mux.c
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@ -495,22 +495,26 @@ static int compute_pkt_fields2(AVFormatContext *s, AVStream *st, AVPacket *pkt)
*/
static int write_packet(AVFormatContext *s, AVPacket *pkt)
{
int ret, did_split, i;
int ret, did_split;
if (s->avoid_negative_ts > 0) {
AVStream *st = s->streams[pkt->stream_index];
if (pkt->dts != AV_NOPTS_VALUE) {
if (!st->mux_ts_offset && pkt->dts < 0) {
for (i = 0; i < s->nb_streams; i++) {
s->streams[i]->mux_ts_offset =
av_rescale_q_rnd(-pkt->dts,
st->time_base,
s->streams[i]->time_base,
AV_ROUND_UP);
}
}
pkt->dts += st->mux_ts_offset;
if (pkt->dts < 0 && pkt->dts != AV_NOPTS_VALUE && !s->offset) {
s->offset = -pkt->dts;
s->offset_timebase = st->time_base;
}
if (s->offset && !st->mux_ts_offset) {
st->mux_ts_offset =
av_rescale_q_rnd(s->offset,
s->offset_timebase,
st->time_base,
AV_ROUND_UP);
}
if (pkt->dts != AV_NOPTS_VALUE)
pkt->dts += st->mux_ts_offset;
if (pkt->pts != AV_NOPTS_VALUE)
pkt->pts += st->mux_ts_offset;
}