static void update_initial_durations(AVFormatContext *s, AVStream *st, AVPacket *pkt)
{
AVPacketList *pktl= s->packet_buffer;
+ int64_t cur_dts= 0;
- assert(pkt->duration && !st->cur_dts);
+ if(st->first_dts != AV_NOPTS_VALUE){
+ cur_dts= st->first_dts;
+ for(; pktl; pktl= pktl->next){
+ if(pktl->pkt.stream_index == pkt->stream_index){
+ if(pktl->pkt.pts != pktl->pkt.dts || pktl->pkt.dts != AV_NOPTS_VALUE || pktl->pkt.duration)
+ break;
+ cur_dts -= pkt->duration;
+ }
+ }
+ pktl= s->packet_buffer;
+ st->first_dts = cur_dts;
+ }else if(st->cur_dts)
+ return;
for(; pktl; pktl= pktl->next){
if(pktl->pkt.stream_index != pkt->stream_index)
continue;
if(pktl->pkt.pts == pktl->pkt.dts && pktl->pkt.dts == AV_NOPTS_VALUE
&& !pktl->pkt.duration){
- pktl->pkt.dts= st->cur_dts;
+ pktl->pkt.dts= cur_dts;
if(!st->codec->has_b_frames)
- pktl->pkt.pts= st->cur_dts;
- st->cur_dts += pkt->duration;
+ pktl->pkt.pts= cur_dts;
+ cur_dts += pkt->duration;
pktl->pkt.duration= pkt->duration;
}else
break;
}
+ if(st->first_dts == AV_NOPTS_VALUE)
+ st->cur_dts= cur_dts;
}
static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
if (den && num) {
pkt->duration = av_rescale(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num);
- if(st->cur_dts == 0 && pkt->duration != 0)
+ if(pkt->duration != 0 && s->packet_buffer)
update_initial_durations(s, st, pkt);
}
}