3 * Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
23 * SMPTE 377M MXF File Format Specifications
24 * SMPTE 378M Operational Pattern 1a
25 * SMPTE 379M MXF Generic Container
26 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
27 * SMPTE 382M Mapping AES3 and Broadcast Wave Audio into the MXF Generic Container
28 * SMPTE 383M Mapping DV-DIF Data to the MXF Generic Container
31 * Search for Track numbers which will identify essence element KLV packets.
32 * Search for SourcePackage which define tracks which contains Track numbers.
33 * Material Package contains tracks with reference to SourcePackage tracks.
34 * Search for Descriptors (Picture, Sound) which contains codec info and parameters.
35 * Assign Descriptors to correct Tracks.
37 * Metadata reading functions read Local Tags, get InstanceUID(0x3C0A) then add MetaDataSet to MXFContext.
38 * Metadata parsing resolves Strong References to objects.
40 * Simple demuxer, only OP1A supported and some files might not work at all.
41 * Only tracks with associated descriptors will be decoded. "Highly Desirable" SMPTE 377M D.1
48 typedef uint8_t UID[16];
50 enum MXFMetadataSetType {
62 typedef struct MXFStructuralComponent {
64 enum MXFMetadataSetType type;
65 UID source_package_uid;
66 UID data_definition_ul;
68 int64_t start_position;
70 } MXFStructuralComponent;
72 typedef struct MXFSequence {
74 enum MXFMetadataSetType type;
75 UID data_definition_ul;
76 UID *structural_components_refs;
77 int structural_components_count;
81 typedef struct MXFTrack {
83 enum MXFMetadataSetType type;
84 MXFSequence *sequence; /* mandatory, and only one */
87 uint8_t track_number[4];
91 typedef struct MXFDescriptor {
93 enum MXFMetadataSetType type;
94 UID essence_container_ul;
96 AVRational sample_rate;
97 AVRational aspect_ratio;
102 UID *sub_descriptors_refs;
103 int sub_descriptors_count;
109 typedef struct MXFPackage {
111 enum MXFMetadataSetType type;
115 MXFDescriptor *descriptor; /* only one */
119 typedef struct MXFEssenceContainerData {
121 enum MXFMetadataSetType type;
122 UID linked_package_uid;
123 } MXFEssenceContainerData;
127 enum MXFMetadataSetType type;
130 typedef struct MXFContext {
133 UID *essence_container_data_sets_refs;
134 int essence_container_data_sets_count;
135 UID *essence_containers_uls; /* Universal Labels SMPTE RP224 */
136 int essence_containers_uls_count;
137 UID operational_pattern_ul;
138 UID content_storage_uid;
139 MXFMetadataSet **metadata_sets;
140 int metadata_sets_count;
144 typedef struct KLVPacket {
150 enum MXFWrappingScheme {
155 typedef struct MXFCodecUL {
158 enum MXFWrappingScheme wrapping;
161 typedef struct MXFMetadataReadTableEntry {
163 int (*read)(MXFContext *mxf, KLVPacket *klv);
164 } MXFMetadataReadTableEntry;
166 /* partial keys to match */
167 static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 };
168 static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 };
170 #define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
172 #define PRINT_KEY(x) dprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n", \
173 (x)[0], (x)[1], (x)[2], (x)[3], (x)[4], (x)[5], (x)[6], (x)[7], (x)[8], (x)[9], (x)[10], (x)[11], (x)[12], (x)[13], (x)[14], (x)[15])
175 static int64_t klv_decode_ber_length(ByteIOContext *pb)
178 uint8_t length = get_byte(pb);
179 int type = length >> 7;
181 if (type) { /* long form */
182 int bytes_num = length & 0x7f;
183 /* SMPTE 379M 5.3.4 guarantee that bytes_num must not exceed 8 bytes */
187 size = size << 8 | get_byte(pb);
189 size = length & 0x7f;
194 static int klv_read_packet(KLVPacket *klv, ByteIOContext *pb)
196 klv->offset = url_ftell(pb);
197 get_buffer(pb, klv->key, 16);
198 klv->length = klv_decode_ber_length(pb);
199 return klv->length == -1 ? -1 : 0;
202 static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
206 for (i = 0; i < s->nb_streams; i++) {
207 MXFTrack *track = s->streams[i]->priv_data;
209 if (!memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number)))
215 static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
219 while (!url_feof(&s->pb)) {
220 if (klv_read_packet(&klv, &s->pb) < 0) {
221 av_log(s, AV_LOG_ERROR, "error reading KLV packet\n");
227 if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
228 av_get_packet(&s->pb, pkt, klv.length);
229 pkt->stream_index = mxf_get_stream_index(s, &klv);
230 return pkt->stream_index == -1 ? -1 : 0;
232 url_fskip(&s->pb, klv.length);
237 static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
239 mxf->metadata_sets = av_realloc(mxf->metadata_sets, (mxf->metadata_sets_count + 1) * sizeof(*mxf->metadata_sets));
240 mxf->metadata_sets[mxf->metadata_sets_count] = metadata_set;
241 mxf->metadata_sets_count++;
245 static int mxf_read_metadata_preface(MXFContext *mxf, KLVPacket *klv)
247 ByteIOContext *pb = &mxf->fc->pb;
250 while (bytes_read < klv->length) {
251 int tag = get_be16(pb);
252 int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
256 get_buffer(pb, mxf->content_storage_uid, 16);
259 get_buffer(pb, mxf->operational_pattern_ul, 16);
262 mxf->essence_containers_uls_count = get_be32(pb);
263 if (mxf->essence_containers_uls_count >= UINT_MAX / sizeof(UID))
265 mxf->essence_containers_uls = av_malloc(mxf->essence_containers_uls_count * sizeof(UID));
266 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
267 get_buffer(pb, mxf->essence_containers_uls, mxf->essence_containers_uls_count * sizeof(UID));
272 bytes_read += size + 4;
277 static int mxf_read_metadata_content_storage(MXFContext *mxf, KLVPacket *klv)
279 ByteIOContext *pb = &mxf->fc->pb;
282 while (bytes_read < klv->length) {
283 int tag = get_be16(pb);
284 int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
286 dprintf("tag 0x%04X, size %d\n", tag, size);
289 mxf->packages_count = get_be32(pb);
290 if (mxf->packages_count >= UINT_MAX / sizeof(UID))
292 mxf->packages_refs = av_malloc(mxf->packages_count * sizeof(UID));
293 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
294 get_buffer(pb, mxf->packages_refs, mxf->packages_count * sizeof(UID));
297 mxf->essence_container_data_sets_count = get_be32(pb);
298 if (mxf->essence_container_data_sets_count >= UINT_MAX / sizeof(UID))
300 mxf->essence_container_data_sets_refs = av_malloc(mxf->essence_container_data_sets_count * sizeof(UID));
301 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
302 get_buffer(pb, mxf->essence_container_data_sets_refs, mxf->essence_container_data_sets_count * sizeof(UID));
307 bytes_read += size + 4;
312 static int mxf_read_metadata_source_clip(MXFContext *mxf, KLVPacket *klv)
314 ByteIOContext *pb = &mxf->fc->pb;
315 MXFStructuralComponent *source_clip = av_mallocz(sizeof(*source_clip));
318 while (bytes_read < klv->length) {
319 int tag = get_be16(pb);
320 int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
322 dprintf("tag 0x%04X, size %d\n", tag, size);
325 get_buffer(pb, source_clip->uid, 16);
328 source_clip->duration = get_be64(pb);
331 source_clip->start_position = get_be64(pb);
334 /* UMID, only get last 16 bytes */
336 get_buffer(pb, source_clip->source_package_uid, 16);
339 source_clip->source_track_id = get_be32(pb);
344 bytes_read += size + 4;
346 source_clip->type = SourceClip;
347 return mxf_add_metadata_set(mxf, source_clip);
350 static int mxf_read_metadata_material_package(MXFContext *mxf, KLVPacket *klv)
352 ByteIOContext *pb = &mxf->fc->pb;
353 MXFPackage *package = av_mallocz(sizeof(*package));
356 while (bytes_read < klv->length) {
357 int tag = get_be16(pb);
358 int size = get_be16(pb); /* KLV specified by 0x53 */
362 get_buffer(pb, package->uid, 16);
365 package->tracks_count = get_be32(pb);
366 if (package->tracks_count >= UINT_MAX / sizeof(UID))
368 package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
369 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
370 get_buffer(pb, package->tracks_refs, package->tracks_count * sizeof(UID));
375 bytes_read += size + 4;
377 package->type = MaterialPackage;
378 return mxf_add_metadata_set(mxf, package);
381 static int mxf_read_metadata_track(MXFContext *mxf, KLVPacket *klv)
383 ByteIOContext *pb = &mxf->fc->pb;
384 MXFTrack *track = av_mallocz(sizeof(*track));
387 while (bytes_read < klv->length) {
388 int tag = get_be16(pb);
389 int size = get_be16(pb); /* KLV specified by 0x53 */
391 dprintf("tag 0x%04X, size %d\n", tag, size);
394 get_buffer(pb, track->uid, 16);
397 track->track_id = get_be32(pb);
400 get_buffer(pb, track->track_number, 4);
403 track->edit_rate.den = get_be32(pb);
404 track->edit_rate.num = get_be32(pb);
407 get_buffer(pb, track->sequence_ref, 16);
412 bytes_read += size + 4;
415 return mxf_add_metadata_set(mxf, track);
418 static int mxf_read_metadata_sequence(MXFContext *mxf, KLVPacket *klv)
420 ByteIOContext *pb = &mxf->fc->pb;
421 MXFSequence *sequence = av_mallocz(sizeof(*sequence));
424 while (bytes_read < klv->length) {
425 int tag = get_be16(pb);
426 int size = get_be16(pb); /* KLV specified by 0x53 */
428 dprintf("tag 0x%04X, size %d\n", tag, size);
431 get_buffer(pb, sequence->uid, 16);
434 sequence->duration = get_be64(pb);
437 get_buffer(pb, sequence->data_definition_ul, 16);
440 sequence->structural_components_count = get_be32(pb);
441 if (sequence->structural_components_count >= UINT_MAX / sizeof(UID))
443 sequence->structural_components_refs = av_malloc(sequence->structural_components_count * sizeof(UID));
444 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
445 get_buffer(pb, sequence->structural_components_refs, sequence->structural_components_count * sizeof(UID));
450 bytes_read += size + 4;
452 sequence->type = Sequence;
453 return mxf_add_metadata_set(mxf, sequence);
456 static int mxf_read_metadata_source_package(MXFContext *mxf, KLVPacket *klv)
458 ByteIOContext *pb = &mxf->fc->pb;
459 MXFPackage *package = av_mallocz(sizeof(*package));
462 while (bytes_read < klv->length) {
463 int tag = get_be16(pb);
464 int size = get_be16(pb); /* KLV specified by 0x53 */
466 dprintf("tag 0x%04X, size %d\n", tag, size);
469 get_buffer(pb, package->uid, 16);
472 package->tracks_count = get_be32(pb);
473 if (package->tracks_count >= UINT_MAX / sizeof(UID))
475 package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
476 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
477 get_buffer(pb, package->tracks_refs, package->tracks_count * sizeof(UID));
480 /* UMID, only get last 16 bytes */
482 get_buffer(pb, package->package_uid, 16);
485 get_buffer(pb, package->descriptor_ref, 16);
490 bytes_read += size + 4;
492 package->type = SourcePackage;
493 return mxf_add_metadata_set(mxf, package);
496 static int mxf_read_metadata_multiple_descriptor(MXFContext *mxf, KLVPacket *klv)
498 ByteIOContext *pb = &mxf->fc->pb;
499 MXFDescriptor *descriptor = av_mallocz(sizeof(*descriptor));
502 while (bytes_read < klv->length) {
503 int tag = get_be16(pb);
504 int size = get_be16(pb); /* KLV specified by 0x53 */
506 dprintf("tag 0x%04X, size %d\n", tag, size);
509 get_buffer(pb, descriptor->uid, 16);
512 descriptor->sub_descriptors_count = get_be32(pb);
513 if (descriptor->sub_descriptors_count >= UINT_MAX / sizeof(UID))
515 descriptor->sub_descriptors_refs = av_malloc(descriptor->sub_descriptors_count * sizeof(UID));
516 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
517 get_buffer(pb, descriptor->sub_descriptors_refs, descriptor->sub_descriptors_count * sizeof(UID));
522 bytes_read += size + 4;
524 descriptor->type = MultipleDescriptor;
525 return mxf_add_metadata_set(mxf, descriptor);
528 static void mxf_read_metadata_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor)
534 dprintf("pixel layout: code 0x%x\n", code);
537 descriptor->bits_per_sample += get_byte(pb);
540 descriptor->bits_per_sample += get_byte(pb);
543 descriptor->bits_per_sample += get_byte(pb);
548 } while (code != 0); /* SMPTE 377M E.2.46 */
551 static int mxf_read_metadata_generic_descriptor(MXFContext *mxf, KLVPacket *klv)
553 ByteIOContext *pb = &mxf->fc->pb;
554 MXFDescriptor *descriptor = av_mallocz(sizeof(*descriptor));
557 while (bytes_read < klv->length) {
558 int tag = get_be16(pb);
559 int size = get_be16(pb); /* KLV specified by 0x53 */
561 dprintf("tag 0x%04X, size %d\n", tag, size);
564 get_buffer(pb, descriptor->uid, 16);
567 get_buffer(pb, descriptor->essence_container_ul, 16);
570 descriptor->linked_track_id = get_be32(pb);
572 case 0x3201: /* PictureEssenceCoding */
573 get_buffer(pb, descriptor->essence_codec_ul, 16);
576 descriptor->width = get_be32(pb);
579 descriptor->height = get_be32(pb);
582 descriptor->aspect_ratio.num = get_be32(pb);
583 descriptor->aspect_ratio.den = get_be32(pb);
586 descriptor->sample_rate.num = get_be32(pb);
587 descriptor->sample_rate.den = get_be32(pb);
589 case 0x3D06: /* SoundEssenceCompression */
590 get_buffer(pb, descriptor->essence_codec_ul, 16);
593 descriptor->channels = get_be32(pb);
596 descriptor->bits_per_sample = get_be32(pb);
599 mxf_read_metadata_pixel_layout(pb, descriptor);
601 case 0x8201: /* Private tag used by SONY C0023S01.mxf */
602 descriptor->extradata = av_malloc(size);
603 descriptor->extradata_size = size;
604 get_buffer(pb, descriptor->extradata, size);
609 bytes_read += size + 4;
611 descriptor->type = Descriptor;
612 return mxf_add_metadata_set(mxf, descriptor);
615 /* SMPTE RP224 http://www.smpte-ra.org/mdd/index.html */
616 static const UID picture_essence_track_ul = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x01,0x00,0x00,0x00 };
617 static const UID sound_essence_track_ul = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x02,0x00,0x00,0x00 };
619 static const MXFCodecUL mxf_codec_uls[] = {
620 /* PictureEssenceCoding */
621 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML I-Frame */
622 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL Long GoP */
623 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@ML Long GoP */
624 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML Long GoP */
625 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@HL Long GoP */
626 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x03 }, CODEC_ID_MPEG4, Frame }, /* XDCAM proxy_pal030926.mxf */
627 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x04 }, CODEC_ID_MPEG4, Frame }, /* XDCAM Proxy C0023S01.mxf */
628 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 30Mbps PAL */
629 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 50Mbps PAL */
630 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO50 PAL */
631 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO25 PAL */
632 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DV25 IEC PAL */
633 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_JPEG2000, Frame }, /* JPEG2000 Codestream */
634 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_RAWVIDEO, Frame }, /* Uncompressed */
635 /* SoundEssenceCompression */
636 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* Uncompressed */
637 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame },
638 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x02,0x02,0x01,0x7E,0x00,0x00,0x00 }, CODEC_ID_PCM_S16BE, Frame }, /* From Omneon MXF file */
639 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame },
640 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x04,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame }, /* XDCAM Proxy C0023S01.mxf */
641 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x01,0x00 }, CODEC_ID_AC3, Frame },
642 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x05,0x00 }, CODEC_ID_MP2, Frame }, /* MP2 or MP3 */
643 //{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x1C,0x00 }, CODEC_ID_DOLBY_E, Frame }, /* Dolby-E */
644 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
647 static const MXFCodecUL mxf_picture_essence_container_uls[] = {
648 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MPEG-ES Frame wrapped */
649 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xe0,0x02 }, CODEC_ID_MPEG2VIDEO, Clip }, /* MPEG-ES Clip wrapped, 0xe0 MPV stream id */
650 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x04,0x61,0x07 }, CODEC_ID_MPEG2VIDEO, Clip }, /* MPEG-ES Custom wrapped, 0x61 ??? stream id */
651 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
654 static const MXFCodecUL mxf_sound_essence_container_uls[] = {
655 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* BWF Frame wrapped */
656 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* AES Frame wrapped */
657 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0x40 ??? stream id */
658 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0xc0 MPA stream id */
659 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x02 }, CODEC_ID_MP2, Clip }, /* MPEG-ES Clip wrapped, 0xc0 MPA stream id */
660 //{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_AES3, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
661 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
664 static const MXFCodecUL *mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid)
666 while (uls->id != CODEC_ID_NONE) {
667 if(!memcmp(uls->uid, *uid, 16))
674 static void *mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref)
680 for (i = 0; i < mxf->metadata_sets_count; i++) {
681 if (!memcmp(*strong_ref, mxf->metadata_sets[i]->uid, 16)) {
682 return mxf->metadata_sets[i];
688 static int mxf_parse_structural_metadata(MXFContext *mxf)
690 MXFPackage *material_package = NULL;
691 MXFPackage *source_package = NULL;
692 MXFPackage *temp_package = NULL;
695 dprintf("metadata sets count %d\n", mxf->metadata_sets_count);
696 /* TODO: handle multiple material packages (OP3x) */
697 for (i = 0; i < mxf->packages_count; i++) {
698 if (!(temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[i]))) {
699 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve package strong ref\n");
702 if (temp_package->type == MaterialPackage) {
703 material_package = temp_package;
707 if (!material_package) {
708 av_log(mxf->fc, AV_LOG_ERROR, "no material package found\n");
712 for (i = 0; i < material_package->tracks_count; i++) {
713 MXFTrack *material_track = NULL;
714 MXFTrack *source_track = NULL;
715 MXFTrack *temp_track = NULL;
716 MXFDescriptor *descriptor = NULL;
717 MXFStructuralComponent *component = NULL;
718 const MXFCodecUL *codec_ul = NULL;
719 const MXFCodecUL *container_ul = NULL;
722 if (!(material_track = mxf_resolve_strong_ref(mxf, &material_package->tracks_refs[i]))) {
723 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track strong ref\n");
727 if (!(material_track->sequence = mxf_resolve_strong_ref(mxf, &material_track->sequence_ref))) {
728 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track sequence strong ref\n");
732 /* TODO: handle multiple source clips */
733 for (j = 0; j < material_track->sequence->structural_components_count; j++) {
734 /* TODO: handle timecode component */
735 component = mxf_resolve_strong_ref(mxf, &material_track->sequence->structural_components_refs[j]);
736 if (!component || component->type != SourceClip)
739 for (k = 0; k < mxf->packages_count; k++) {
740 if (!(temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[k]))) {
741 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track strong ref\n");
744 if (!memcmp(temp_package->package_uid, component->source_package_uid, 16)) {
745 source_package = temp_package;
749 if (!source_package) {
750 av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source package found\n", material_track->track_id);
753 for (k = 0; k < source_package->tracks_count; k++) {
754 if (!(temp_track = mxf_resolve_strong_ref(mxf, &source_package->tracks_refs[k]))) {
755 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track strong ref\n");
758 if (temp_track->track_id == component->source_track_id) {
759 source_track = temp_track;
764 av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source track found\n", material_track->track_id);
771 st = av_new_stream(mxf->fc, source_track->track_id);
772 st->priv_data = source_track;
773 st->duration = component->duration;
774 if (st->duration == -1)
775 st->duration = AV_NOPTS_VALUE;
776 st->start_time = component->start_position;
777 av_set_pts_info(st, 64, material_track->edit_rate.num, material_track->edit_rate.den);
779 if (!(source_track->sequence = mxf_resolve_strong_ref(mxf, &source_track->sequence_ref))) {
780 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track sequence strong ref\n");
785 PRINT_KEY(source_track->sequence->data_definition_ul);
787 if (!memcmp(source_track->sequence->data_definition_ul, picture_essence_track_ul, 16))
788 st->codec->codec_type = CODEC_TYPE_VIDEO;
789 else if (!memcmp(source_track->sequence->data_definition_ul, sound_essence_track_ul, 16))
790 st->codec->codec_type = CODEC_TYPE_AUDIO;
792 st->codec->codec_type = CODEC_TYPE_DATA;
794 source_package->descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor_ref);
795 if (source_package->descriptor) {
796 if (source_package->descriptor->type == MultipleDescriptor) {
797 for (j = 0; j < source_package->descriptor->sub_descriptors_count; j++) {
798 MXFDescriptor *sub_descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor->sub_descriptors_refs[j]);
800 if (!sub_descriptor) {
801 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve sub descriptor strong ref\n");
804 if (sub_descriptor->linked_track_id == source_track->track_id) {
805 descriptor = sub_descriptor;
810 descriptor = source_package->descriptor;
813 av_log(mxf->fc, AV_LOG_INFO, "source track %d: stream %d, no descriptor found\n", source_track->track_id, st->index);
817 PRINT_KEY(descriptor->essence_codec_ul);
818 PRINT_KEY(descriptor->essence_container_ul);
820 /* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
821 codec_ul = mxf_get_codec_ul(mxf_codec_uls, &descriptor->essence_codec_ul);
822 st->codec->codec_id = codec_ul->id;
823 if (descriptor->extradata) {
824 st->codec->extradata = descriptor->extradata;
825 st->codec->extradata_size = descriptor->extradata_size;
827 if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
828 container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, &descriptor->essence_container_ul);
829 if (st->codec->codec_id == CODEC_ID_NONE)
830 st->codec->codec_id = container_ul->id;
831 st->codec->width = descriptor->width;
832 st->codec->height = descriptor->height;
833 st->codec->bits_per_sample = descriptor->bits_per_sample; /* Uncompressed */
834 } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
835 container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, &descriptor->essence_container_ul);
836 if (st->codec->codec_id == CODEC_ID_NONE)
837 st->codec->codec_id = container_ul->id;
838 st->codec->channels = descriptor->channels;
839 st->codec->bits_per_sample = descriptor->bits_per_sample;
840 st->codec->sample_rate = descriptor->sample_rate.num / descriptor->sample_rate.den;
841 /* TODO: implement CODEC_ID_RAWAUDIO */
842 if (st->codec->codec_id == CODEC_ID_PCM_S16LE) {
843 if (descriptor->bits_per_sample == 24)
844 st->codec->codec_id = CODEC_ID_PCM_S24LE;
845 else if (descriptor->bits_per_sample == 32)
846 st->codec->codec_id = CODEC_ID_PCM_S32LE;
847 } else if (st->codec->codec_id == CODEC_ID_PCM_S16BE) {
848 if (descriptor->bits_per_sample == 24)
849 st->codec->codec_id = CODEC_ID_PCM_S24BE;
850 else if (descriptor->bits_per_sample == 32)
851 st->codec->codec_id = CODEC_ID_PCM_S32BE;
854 if (container_ul && container_ul->wrapping == Clip) {
855 dprintf("stream %d: clip wrapped essence\n", st->index);
856 st->need_parsing = 1;
862 static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
863 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x2F,0x00 }, mxf_read_metadata_preface },
864 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 }, mxf_read_metadata_content_storage },
865 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 }, mxf_read_metadata_source_package },
866 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 }, mxf_read_metadata_material_package },
867 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 }, mxf_read_metadata_sequence },
868 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 }, mxf_read_metadata_source_clip },
869 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 }, mxf_read_metadata_multiple_descriptor },
870 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }, mxf_read_metadata_generic_descriptor }, /* Generic Sound */
871 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }, mxf_read_metadata_generic_descriptor }, /* CDCI */
872 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 }, mxf_read_metadata_generic_descriptor }, /* RGBA */
873 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_metadata_generic_descriptor }, /* MPEG 2 Video */
874 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_read_metadata_generic_descriptor }, /* Wave */
875 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_metadata_generic_descriptor }, /* AES3 */
876 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_metadata_track }, /* Static Track */
877 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_metadata_track }, /* Generic Track */
878 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL },
881 static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
883 MXFContext *mxf = s->priv_data;
887 while (!url_feof(&s->pb)) {
888 const MXFMetadataReadTableEntry *function;
890 if (klv_read_packet(&klv, &s->pb) < 0) {
891 av_log(s, AV_LOG_ERROR, "error reading KLV packet\n");
897 if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
898 /* FIXME avoid seek */
899 url_fseek(&s->pb, klv.offset, SEEK_SET);
903 for (function = mxf_metadata_read_table; function->read; function++) {
904 if (IS_KLV_KEY(klv.key, function->key)) {
905 if (function->read(mxf, &klv) < 0) {
906 av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
913 url_fskip(&s->pb, klv.length);
915 return mxf_parse_structural_metadata(mxf);
918 static int mxf_read_close(AVFormatContext *s)
920 MXFContext *mxf = s->priv_data;
923 av_freep(&mxf->packages_refs);
924 av_freep(&mxf->essence_container_data_sets_refs);
925 av_freep(&mxf->essence_containers_uls);
926 for (i = 0; i < mxf->metadata_sets_count; i++) {
927 switch (mxf->metadata_sets[i]->type) {
928 case MultipleDescriptor:
929 av_freep(&((MXFDescriptor *)mxf->metadata_sets[i])->sub_descriptors_refs);
932 av_freep(&((MXFSequence *)mxf->metadata_sets[i])->structural_components_refs);
935 case MaterialPackage:
936 av_freep(&((MXFPackage *)mxf->metadata_sets[i])->tracks_refs);
941 av_freep(&mxf->metadata_sets[i]);
943 av_freep(&mxf->metadata_sets);
947 static int mxf_probe(AVProbeData *p) {
948 uint8_t *bufp = p->buf;
949 uint8_t *end = p->buf + p->buf_size;
951 if (p->buf_size < sizeof(mxf_header_partition_pack_key))
954 /* Must skip Run-In Sequence and search for MXF header partition pack key SMPTE 377M 5.5 */
955 end -= sizeof(mxf_header_partition_pack_key);
956 for (; bufp < end; bufp++) {
957 if (IS_KLV_KEY(bufp, mxf_header_partition_pack_key))
958 return AVPROBE_SCORE_MAX;
964 AVInputFormat mxf_demuxer = {