static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit) { MpegTSContext *ts = s->priv_data; int64_t pos; int pos47 = ts->pos47_full % ts->raw_packet_size; pos = ((*ppos + ts->raw_packet_size - 1 - pos47) / ts->raw_packet_size) * ts->raw_packet_size + pos47; ff_read_frame_flush(s); if (avio_seek(s->pb, pos, SEEK_SET) < 0) return AV_NOPTS_VALUE; while(pos < pos_limit) { int ret; AVPacket pkt; av_init_packet(&pkt); ret= av_read_frame(s, &pkt); if(ret < 0) return AV_NOPTS_VALUE; av_free_packet(&pkt); if(pkt.dts != AV_NOPTS_VALUE && pkt.pos >= 0){ ff_reduce_index(s, pkt.stream_index); av_add_index_entry(s->streams[pkt.stream_index], pkt.pos, pkt.dts, 0, 0, AVINDEX_KEYFRAME /* FIXME keyframe? */); if(pkt.stream_index == stream_index){ *ppos= pkt.pos; return pkt.dts; } } pos = pkt.pos; } return AV_NOPTS_VALUE; }