static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) { MOVContext *mov = s->priv_data; MOVStreamContext *sc; AVIndexEntry *sample; AVStream *st = NULL; int ret; mov->fc = s; retry: sample = mov_find_next_sample(s, &st); if (!sample) { mov->found_mdat = 0; if (!mov->next_root_atom) return AVERROR_EOF; avio_seek(s->pb, mov->next_root_atom, SEEK_SET); mov->next_root_atom = 0; if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 || url_feof(s->pb)) return AVERROR_EOF; av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb)); goto retry; sc = st->priv_data; /* must be done just before reading, to avoid infinite loop on sample */ sc->current_sample++; if (st->discard != AVDISCARD_ALL) { if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) { av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos); return AVERROR_INVALIDDATA; ret = av_get_packet(sc->pb, pkt, sample->size); if (ret < 0) return ret; if (sc->has_palette) { uint8_t *pal; pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE); if (!pal) { av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n"); } else { memcpy(pal, sc->palette, AVPALETTE_SIZE); sc->has_palette = 0; #if CONFIG_DV_DEMUXER if (mov->dv_demux && sc->dv_audio_container) { avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos); av_free(pkt->data); pkt->size = 0; ret = avpriv_dv_get_packet(mov->dv_demux, pkt); if (ret < 0) return ret; #endif pkt->stream_index = sc->ffindex; pkt->dts = sample->timestamp; if (sc->ctts_data && sc->ctts_index < sc->ctts_count) { pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration; /* update ctts context */ sc->ctts_sample++; if (sc->ctts_index < sc->ctts_count && sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) { sc->ctts_index++; sc->ctts_sample = 0; if (sc->wrong_dts) pkt->dts = AV_NOPTS_VALUE; } else { int64_t next_dts = (sc->current_sample < st->nb_index_entries) ? st->index_entries[sc->current_sample].timestamp : st->duration; pkt->duration = next_dts - pkt->dts; pkt->pts = pkt->dts; if (st->discard == AVDISCARD_ALL) goto retry; pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0; pkt->pos = sample->pos; av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration); return 0;