static void compute_pkt_fields2(AVStream *st, AVPacket *pkt){ int b_frames = FFMAX(st->codec.has_b_frames, st->codec.max_b_frames); int num, den, frame_size; // av_log(NULL, AV_LOG_DEBUG, "av_write_frame: pts:%lld dts:%lld cur_dts:%lld b:%d size:%d st:%d\n", pkt->pts, pkt->dts, st->cur_dts, b_frames, pkt->size, pkt->stream_index); /* if(pkt->pts == AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE) return -1;*/ if(pkt->pts != AV_NOPTS_VALUE) pkt->pts = av_rescale(pkt->pts, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num); if(pkt->dts != AV_NOPTS_VALUE) pkt->dts = av_rescale(pkt->dts, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num); /* duration field */ pkt->duration = av_rescale(pkt->duration, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num); if (pkt->duration == 0) { compute_frame_duration(&num, &den, st, NULL, pkt); if (den && num) { pkt->duration = av_rescale(1, num * (int64_t)st->time_base.den, den * (int64_t)st->time_base.num); } } //XXX/FIXME this is a temporary hack until all encoders output pts if((pkt->pts == 0 || pkt->pts == AV_NOPTS_VALUE) && pkt->dts == AV_NOPTS_VALUE && !b_frames){ pkt->dts= // pkt->pts= st->cur_dts; pkt->pts= st->pts.val; } //calculate dts from pts if(pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE){ if(b_frames){ if(st->last_IP_pts == AV_NOPTS_VALUE){ st->last_IP_pts= -pkt->duration; } if(st->last_IP_pts < pkt->pts){ pkt->dts= st->last_IP_pts; st->last_IP_pts= pkt->pts; }else pkt->dts= pkt->pts; }else pkt->dts= pkt->pts; } // av_log(NULL, AV_LOG_DEBUG, "av_write_frame: pts2:%lld dts2:%lld\n", pkt->pts, pkt->dts); st->cur_dts= pkt->dts; st->pts.val= pkt->dts; /* update pts */ switch (st->codec.codec_type) { case CODEC_TYPE_AUDIO: frame_size = get_audio_frame_size(&st->codec, pkt->size); /* HACK/FIXME, we skip the initial 0-size packets as they are most likely equal to the encoder delay, but it would be better if we had the real timestamps from the encoder */ if (frame_size >= 0 && (pkt->size || st->pts.num!=st->pts.den>>1 || st->pts.val)) { av_frac_add(&st->pts, (int64_t)st->time_base.den * frame_size); } break; case CODEC_TYPE_VIDEO: av_frac_add(&st->pts, (int64_t)st->time_base.den * st->codec.frame_rate_base); break; default: break; } }