- if (!(source_track->sequence = mxf_resolve_strong_ref(mxf, &source_track->sequence_ref, Sequence))) {
- av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track sequence strong ref\n");
- return -1;
- }
-
-#ifdef DEBUG
- PRINT_KEY(mxf->fc, "data definition ul", source_track->sequence->data_definition_ul);
-#endif
- st->codec->codec_type = mxf_get_codec_type(mxf_data_definition_uls, &source_track->sequence->data_definition_ul);
-
- source_package->descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor_ref, AnyType);
- if (source_package->descriptor) {
- if (source_package->descriptor->type == MultipleDescriptor) {
- for (j = 0; j < source_package->descriptor->sub_descriptors_count; j++) {
- MXFDescriptor *sub_descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor->sub_descriptors_refs[j], Descriptor);
-
- if (!sub_descriptor) {
- av_log(mxf->fc, AV_LOG_ERROR, "could not resolve sub descriptor strong ref\n");
- continue;
- }
- if (sub_descriptor->linked_track_id == source_track->track_id) {
- descriptor = sub_descriptor;
- break;
- }
- }
- } else if (source_package->descriptor->type == Descriptor)
- descriptor = source_package->descriptor;
- }
- if (!descriptor) {
- av_log(mxf->fc, AV_LOG_INFO, "source track %d: stream %d, no descriptor found\n", source_track->track_id, st->index);
- continue;
- }
-#ifdef DEBUG
- PRINT_KEY(mxf->fc, "essence codec ul", descriptor->essence_codec_ul);
- PRINT_KEY(mxf->fc, "essence container ul", descriptor->essence_container_ul);
-#endif
- essence_container_ul = &descriptor->essence_container_ul;
- /* HACK: replacing the original key with mxf_encrypted_essence_container
- * is not allowed according to s429-6, try to find correct information anyway */
- if (IS_KLV_KEY(essence_container_ul, mxf_encrypted_essence_container)) {
- av_log(mxf->fc, AV_LOG_INFO, "broken encrypted mxf file\n");
- for (k = 0; k < mxf->metadata_sets_count; k++) {
- MXFMetadataSet *metadata = mxf->metadata_sets[k];
- if (metadata->type == CryptoContext) {
- essence_container_ul = &((MXFCryptoContext *)metadata)->source_container_ul;
- break;
- }
- }
- }
- /* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
- codec_ul = mxf_get_codec_ul(mxf_codec_uls, &descriptor->essence_codec_ul);
- st->codec->codec_id = codec_ul->id;
- if (descriptor->extradata) {
- st->codec->extradata = descriptor->extradata;
- st->codec->extradata_size = descriptor->extradata_size;
- }
- if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
- if (st->codec->codec_id == CODEC_ID_NONE)
- st->codec->codec_id = container_ul->id;
- st->codec->width = descriptor->width;
- st->codec->height = descriptor->height;
- st->codec->bits_per_sample = descriptor->bits_per_sample; /* Uncompressed */
- st->need_parsing = AVSTREAM_PARSE_HEADERS;
- } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul);
- if (st->codec->codec_id == CODEC_ID_NONE)
- st->codec->codec_id = container_ul->id;
- st->codec->channels = descriptor->channels;
- st->codec->bits_per_sample = descriptor->bits_per_sample;
- st->codec->sample_rate = descriptor->sample_rate.num / descriptor->sample_rate.den;
- /* TODO: implement CODEC_ID_RAWAUDIO */
- if (st->codec->codec_id == CODEC_ID_PCM_S16LE) {
- if (descriptor->bits_per_sample == 24)
- st->codec->codec_id = CODEC_ID_PCM_S24LE;
- else if (descriptor->bits_per_sample == 32)
- st->codec->codec_id = CODEC_ID_PCM_S32LE;
- } else if (st->codec->codec_id == CODEC_ID_PCM_S16BE) {
- if (descriptor->bits_per_sample == 24)
- st->codec->codec_id = CODEC_ID_PCM_S24BE;
- else if (descriptor->bits_per_sample == 32)
- st->codec->codec_id = CODEC_ID_PCM_S32BE;
- } else if (st->codec->codec_id == CODEC_ID_MP2) {
- st->need_parsing = AVSTREAM_PARSE_FULL;
- }
- }
- if (st->codec->codec_type != CODEC_TYPE_DATA && (*essence_container_ul)[15] > 0x01) {
- av_log(mxf->fc, AV_LOG_WARNING, "only frame wrapped mappings are correctly supported\n");
- st->need_parsing = AVSTREAM_PARSE_FULL;
- }
- }
- return 0;
-}
-
-static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
- { { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }, mxf_read_primer_pack },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 }, mxf_read_content_storage, 0, AnyType },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 }, mxf_read_source_package, sizeof(MXFPackage), SourcePackage },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 }, mxf_read_material_package, sizeof(MXFPackage), MaterialPackage },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 }, mxf_read_sequence, sizeof(MXFSequence), Sequence },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 }, mxf_read_source_clip, sizeof(MXFStructuralComponent), SourceClip },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), MultipleDescriptor },
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* Generic Sound */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* CDCI */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* RGBA */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* MPEG 2 Video */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* Wave */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* AES3 */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_track, sizeof(MXFTrack), Track }, /* Static Track */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_track, sizeof(MXFTrack), Track }, /* Generic Track */
- { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x04,0x01,0x02,0x02,0x00,0x00 }, mxf_read_cryptographic_context, sizeof(MXFCryptoContext), CryptoContext },
- { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, 0, AnyType },
-};
-
-static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, int (*read_child)(), int ctx_size, enum MXFMetadataSetType type)
-{
- ByteIOContext *pb = mxf->fc->pb;
- MXFMetadataSet *ctx = ctx_size ? av_mallocz(ctx_size) : mxf;
- uint64_t klv_end = url_ftell(pb) + klv->length;
-
- if (!ctx)
- return -1;
- while (url_ftell(pb) + 4 < klv_end) {
- int tag = get_be16(pb);
- int size = get_be16(pb); /* KLV specified by 0x53 */
- uint64_t next = url_ftell(pb) + size;
- UID uid = {0};
-
- if (!size) { /* ignore empty tag, needed for some files with empty UMID tag */
- av_log(mxf->fc, AV_LOG_ERROR, "local tag 0x%04X with 0 size\n", tag);
- continue;
- }
- if (tag > 0x7FFF) { /* dynamic tag */
- int i;
- for (i = 0; i < mxf->local_tags_count; i++) {
- int local_tag = AV_RB16(mxf->local_tags+i*18);
- if (local_tag == tag) {
- memcpy(uid, mxf->local_tags+i*18+2, 16);
- dprintf(mxf->fc, "local tag 0x%04X\n", local_tag);
-#ifdef DEBUG
- PRINT_KEY(mxf->fc, "uid", uid);
-#endif
- }
- }
- }
- if (ctx_size && tag == 0x3C0A)
- get_buffer(pb, ctx->uid, 16);
- else if (read_child(ctx, pb, tag, size, uid) < 0)
- return -1;
-
- url_fseek(pb, next, SEEK_SET);
- }
- if (ctx_size) ctx->type = type;
- return ctx_size ? mxf_add_metadata_set(mxf, ctx) : 0;
-}
-
-static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- MXFContext *mxf = s->priv_data;
- KLVPacket klv;
-
- if (!mxf_read_sync(s->pb, mxf_header_partition_pack_key, 14)) {
- av_log(s, AV_LOG_ERROR, "could not find header partition pack key\n");
- return -1;
- }
- url_fseek(s->pb, -14, SEEK_CUR);
- mxf->fc = s;
- while (!url_feof(s->pb)) {
- const MXFMetadataReadTableEntry *metadata;
-
- if (klv_read_packet(&klv, s->pb) < 0)
- return -1;
-#ifdef DEBUG
- PRINT_KEY(s, "read header", klv.key);
-#endif
- if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) ||
- IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
- /* FIXME avoid seek */
- url_fseek(s->pb, klv.offset, SEEK_SET);
- break;
- }
-
- for (metadata = mxf_metadata_read_table; metadata->read; metadata++) {
- if (IS_KLV_KEY(klv.key, metadata->key)) {
- int (*read)() = klv.key[5] == 0x53 ? mxf_read_local_tags : metadata->read;
- if (read(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type) < 0) {
- av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
- return -1;
- }
- break;
- }
- }
- if (!metadata->read)
- url_fskip(s->pb, klv.length);
- }
- return mxf_parse_structural_metadata(mxf);
-}
-
-static int mxf_read_close(AVFormatContext *s)
-{
- MXFContext *mxf = s->priv_data;
- int i;
-
- av_freep(&mxf->packages_refs);
- for (i = 0; i < mxf->metadata_sets_count; i++) {
- switch (mxf->metadata_sets[i]->type) {
- case MultipleDescriptor:
- av_freep(&((MXFDescriptor *)mxf->metadata_sets[i])->sub_descriptors_refs);
- break;
- case Sequence:
- av_freep(&((MXFSequence *)mxf->metadata_sets[i])->structural_components_refs);
- break;
- case SourcePackage:
- case MaterialPackage:
- av_freep(&((MXFPackage *)mxf->metadata_sets[i])->tracks_refs);
- break;
- default:
- break;