3 * Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>.
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
25 * SMPTE 377M MXF File Format Specifications
26 * SMPTE 378M Operational Pattern 1a
27 * SMPTE 379M MXF Generic Container
28 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
29 * SMPTE 382M Mapping AES3 and Broadcast Wave Audio into the MXF Generic Container
30 * SMPTE 383M Mapping DV-DIF Data to the MXF Generic Container
33 * Search for Track numbers which will identify essence element KLV packets.
34 * Search for SourcePackage which define tracks which contains Track numbers.
35 * Material Package contains tracks with reference to SourcePackage tracks.
36 * Search for Descriptors (Picture, Sound) which contains codec info and parameters.
37 * Assign Descriptors to correct Tracks.
39 * Metadata reading functions read Local Tags, get InstanceUID(0x3C0A) then add MetaDataSet to MXFContext.
40 * Metadata parsing resolves Strong References to objects.
42 * Simple demuxer, only OP1A supported and some files might not work at all.
43 * Only tracks with associated descriptors will be decoded. "Highly Desirable" SMPTE 377M D.1
51 typedef uint8_t UID[16];
53 enum MXFMetadataSetType {
67 typedef struct MXFCryptoContext {
69 enum MXFMetadataSetType type;
71 UID source_container_ul;
74 typedef struct MXFStructuralComponent {
76 enum MXFMetadataSetType type;
77 UID source_package_uid;
78 UID data_definition_ul;
80 int64_t start_position;
82 } MXFStructuralComponent;
84 typedef struct MXFSequence {
86 enum MXFMetadataSetType type;
87 UID data_definition_ul;
88 UID *structural_components_refs;
89 int structural_components_count;
93 typedef struct MXFTrack {
95 enum MXFMetadataSetType type;
96 MXFSequence *sequence; /* mandatory, and only one */
99 uint8_t track_number[4];
100 AVRational edit_rate;
103 typedef struct MXFDescriptor {
105 enum MXFMetadataSetType type;
106 UID essence_container_ul;
107 UID essence_codec_ul;
108 AVRational sample_rate;
109 AVRational aspect_ratio;
114 UID *sub_descriptors_refs;
115 int sub_descriptors_count;
121 typedef struct MXFPackage {
123 enum MXFMetadataSetType type;
127 MXFDescriptor *descriptor; /* only one */
131 typedef struct MXFEssenceContainerData {
133 enum MXFMetadataSetType type;
134 UID linked_package_uid;
135 } MXFEssenceContainerData;
139 enum MXFMetadataSetType type;
142 typedef struct MXFContext {
145 MXFMetadataSet **metadata_sets;
146 int metadata_sets_count;
147 const uint8_t *sync_key;
152 typedef struct KLVPacket {
158 enum MXFWrappingScheme {
163 typedef struct MXFCodecUL {
166 enum MXFWrappingScheme wrapping;
169 typedef struct MXFDataDefinitionUL {
172 } MXFDataDefinitionUL;
174 typedef struct MXFMetadataReadTableEntry {
178 enum MXFMetadataSetType type;
179 } MXFMetadataReadTableEntry;
181 /* partial keys to match */
182 static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 };
183 static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 };
184 static const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 };
185 /* complete keys to match */
186 static const uint8_t mxf_encrypted_triplet_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 };
187 static const uint8_t mxf_encrypted_essence_container[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 };
189 #define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
191 #define PRINT_KEY(pc, s, x) dprintf(pc, "%s %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n", s, \
192 (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])
194 static int64_t klv_decode_ber_length(ByteIOContext *pb)
196 uint64_t size = get_byte(pb);
197 if (size & 0x80) { /* long form */
198 int bytes_num = size & 0x7f;
199 /* SMPTE 379M 5.3.4 guarantee that bytes_num must not exceed 8 bytes */
204 size = size << 8 | get_byte(pb);
209 static int mxf_read_sync(ByteIOContext *pb, const uint8_t *key, unsigned size)
212 for (i = 0; i < size && !url_feof(pb); i++) {
216 else if (b != key[i])
222 static int klv_read_packet(KLVPacket *klv, ByteIOContext *pb)
224 if (!mxf_read_sync(pb, mxf_klv_key, 4))
226 klv->offset = url_ftell(pb) - 4;
227 memcpy(klv->key, mxf_klv_key, 4);
228 get_buffer(pb, klv->key + 4, 12);
229 klv->length = klv_decode_ber_length(pb);
230 return klv->length == -1 ? -1 : 0;
233 static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
237 for (i = 0; i < s->nb_streams; i++) {
238 MXFTrack *track = s->streams[i]->priv_data;
240 if (!memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number)))
243 /* return 0 if only one stream, for OP Atom files with 0 as track number */
244 return s->nb_streams == 1 ? 0 : -1;
247 /* XXX: use AVBitStreamFilter */
248 static int mxf_get_d10_aes3_packet(ByteIOContext *pb, AVStream *st, AVPacket *pkt, int64_t length)
250 uint8_t buffer[61444];
251 uint8_t *buf_ptr, *end_ptr, *data_ptr;
253 if (length > 61444) /* worst case PAL 1920 samples 8 channels */
255 get_buffer(pb, buffer, length);
256 av_new_packet(pkt, length);
257 data_ptr = pkt->data;
258 end_ptr = buffer + length;
259 buf_ptr = buffer + 4; /* skip SMPTE 331M header */
260 for (; buf_ptr < end_ptr; buf_ptr += 4) {
261 if (st->codec->bits_per_sample == 24) {
262 data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
263 data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
264 data_ptr[2] = (buf_ptr[0] >> 4) | ((buf_ptr[1] & 0x0f) << 4);
267 data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
268 data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
272 pkt->size = data_ptr - pkt->data;
276 static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv)
278 static const uint8_t checkv[16] = {0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b};
279 MXFContext *mxf = s->priv_data;
280 ByteIOContext *pb = &s->pb;
281 offset_t end = url_ftell(pb) + klv->length;
284 uint64_t plaintext_size;
289 if (!mxf->aesc && s->key && s->keylen == 16) {
290 mxf->aesc = av_malloc(av_aes_size);
291 av_aes_init(mxf->aesc, s->key, 128, 1);
294 url_fskip(pb, klv_decode_ber_length(pb));
296 klv_decode_ber_length(pb);
297 plaintext_size = get_be64(pb);
299 klv_decode_ber_length(pb);
300 get_buffer(pb, klv->key, 16);
301 if (!IS_KLV_KEY(klv, mxf_essence_element_key)) goto err_out;
302 index = mxf_get_stream_index(s, klv);
303 if (index < 0) goto err_out;
305 klv_decode_ber_length(pb);
306 orig_size = get_be64(pb);
307 if (orig_size < plaintext_size) goto err_out;
309 size = klv_decode_ber_length(pb);
310 if (size < 32 || size - 32 < orig_size) goto err_out;
311 get_buffer(pb, ivec, 16);
312 get_buffer(pb, tmpbuf, 16);
314 av_aes_crypt(mxf->aesc, tmpbuf, tmpbuf, 1, ivec, 1);
315 if (memcmp(tmpbuf, checkv, 16))
316 av_log(s, AV_LOG_ERROR, "probably incorrect decryption key\n");
318 av_get_packet(pb, pkt, size);
319 size -= plaintext_size;
321 av_aes_crypt(mxf->aesc, &pkt->data[plaintext_size],
322 &pkt->data[plaintext_size], size >> 4, ivec, 1);
323 pkt->size = orig_size;
324 pkt->stream_index = index;
325 url_fskip(pb, end - url_ftell(pb));
329 url_fskip(pb, end - url_ftell(pb));
333 static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
335 MXFContext *mxf = s->priv_data;
338 while (!url_feof(&s->pb)) {
339 if (klv_read_packet(&klv, &s->pb) < 0)
342 PRINT_KEY(s, "read packet", klv.key);
344 if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key)) {
345 int res = mxf_decrypt_triplet(s, pkt, &klv);
346 mxf->sync_key = mxf_encrypted_triplet_key;
348 av_log(s, AV_LOG_ERROR, "invalid encoded triplet\n");
353 if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
354 int index = mxf_get_stream_index(s, &klv);
356 av_log(s, AV_LOG_ERROR, "error getting stream index\n");
357 url_fskip(&s->pb, klv.length);
360 /* check for 8 channels AES3 element */
361 if (klv.key[12] == 0x06 && klv.key[13] == 0x01 && klv.key[14] == 0x10) {
362 if (mxf_get_d10_aes3_packet(&s->pb, s->streams[index], pkt, klv.length) < 0) {
363 av_log(s, AV_LOG_ERROR, "error reading D-10 aes3 frame\n");
367 av_get_packet(&s->pb, pkt, klv.length);
368 pkt->stream_index = index;
371 url_fskip(&s->pb, klv.length);
376 static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
378 mxf->metadata_sets = av_realloc(mxf->metadata_sets, (mxf->metadata_sets_count + 1) * sizeof(*mxf->metadata_sets));
379 mxf->metadata_sets[mxf->metadata_sets_count] = metadata_set;
380 mxf->metadata_sets_count++;
384 static int mxf_read_metadata_cryptographic_context(MXFCryptoContext *cryptocontext, ByteIOContext *pb, int tag)
388 get_buffer(pb, cryptocontext->context_uid, 16);
391 get_buffer(pb, cryptocontext->source_container_ul, 16);
397 static int mxf_read_metadata_content_storage(MXFContext *mxf, ByteIOContext *pb, int tag)
401 mxf->packages_count = get_be32(pb);
402 if (mxf->packages_count >= UINT_MAX / sizeof(UID))
404 mxf->packages_refs = av_malloc(mxf->packages_count * sizeof(UID));
405 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
406 get_buffer(pb, (uint8_t *)mxf->packages_refs, mxf->packages_count * sizeof(UID));
412 static int mxf_read_metadata_source_clip(MXFStructuralComponent *source_clip, ByteIOContext *pb, int tag)
416 source_clip->duration = get_be64(pb);
419 source_clip->start_position = get_be64(pb);
422 /* UMID, only get last 16 bytes */
424 get_buffer(pb, source_clip->source_package_uid, 16);
427 source_clip->source_track_id = get_be32(pb);
433 static int mxf_read_metadata_material_package(MXFPackage *package, ByteIOContext *pb, int tag)
437 package->tracks_count = get_be32(pb);
438 if (package->tracks_count >= UINT_MAX / sizeof(UID))
440 package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
441 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
442 get_buffer(pb, (uint8_t *)package->tracks_refs, package->tracks_count * sizeof(UID));
448 static int mxf_read_metadata_track(MXFTrack *track, ByteIOContext *pb, int tag)
452 track->track_id = get_be32(pb);
455 get_buffer(pb, track->track_number, 4);
458 track->edit_rate.den = get_be32(pb);
459 track->edit_rate.num = get_be32(pb);
462 get_buffer(pb, track->sequence_ref, 16);
468 static int mxf_read_metadata_sequence(MXFSequence *sequence, ByteIOContext *pb, int tag)
472 sequence->duration = get_be64(pb);
475 get_buffer(pb, sequence->data_definition_ul, 16);
478 sequence->structural_components_count = get_be32(pb);
479 if (sequence->structural_components_count >= UINT_MAX / sizeof(UID))
481 sequence->structural_components_refs = av_malloc(sequence->structural_components_count * sizeof(UID));
482 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
483 get_buffer(pb, (uint8_t *)sequence->structural_components_refs, sequence->structural_components_count * sizeof(UID));
489 static int mxf_read_metadata_source_package(MXFPackage *package, ByteIOContext *pb, int tag)
493 package->tracks_count = get_be32(pb);
494 if (package->tracks_count >= UINT_MAX / sizeof(UID))
496 package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
497 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
498 get_buffer(pb, (uint8_t *)package->tracks_refs, package->tracks_count * sizeof(UID));
501 /* UMID, only get last 16 bytes */
503 get_buffer(pb, package->package_uid, 16);
506 get_buffer(pb, package->descriptor_ref, 16);
512 static void mxf_read_metadata_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor)
518 dprintf(NULL, "pixel layout: code 0x%x\n", code);
521 descriptor->bits_per_sample += get_byte(pb);
524 descriptor->bits_per_sample += get_byte(pb);
527 descriptor->bits_per_sample += get_byte(pb);
532 } while (code != 0); /* SMPTE 377M E.2.46 */
535 static int mxf_read_metadata_generic_descriptor(MXFDescriptor *descriptor, ByteIOContext *pb, int tag, int size)
539 descriptor->sub_descriptors_count = get_be32(pb);
540 if (descriptor->sub_descriptors_count >= UINT_MAX / sizeof(UID))
542 descriptor->sub_descriptors_refs = av_malloc(descriptor->sub_descriptors_count * sizeof(UID));
543 url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
544 get_buffer(pb, (uint8_t *)descriptor->sub_descriptors_refs, descriptor->sub_descriptors_count * sizeof(UID));
547 get_buffer(pb, descriptor->essence_container_ul, 16);
550 descriptor->linked_track_id = get_be32(pb);
552 case 0x3201: /* PictureEssenceCoding */
553 get_buffer(pb, descriptor->essence_codec_ul, 16);
556 descriptor->width = get_be32(pb);
559 descriptor->height = get_be32(pb);
562 descriptor->aspect_ratio.num = get_be32(pb);
563 descriptor->aspect_ratio.den = get_be32(pb);
566 descriptor->sample_rate.num = get_be32(pb);
567 descriptor->sample_rate.den = get_be32(pb);
569 case 0x3D06: /* SoundEssenceCompression */
570 get_buffer(pb, descriptor->essence_codec_ul, 16);
573 descriptor->channels = get_be32(pb);
576 descriptor->bits_per_sample = get_be32(pb);
579 mxf_read_metadata_pixel_layout(pb, descriptor);
581 case 0x8201: /* Private tag used by SONY C0023S01.mxf */
582 descriptor->extradata = av_malloc(size);
583 descriptor->extradata_size = size;
584 get_buffer(pb, descriptor->extradata, size);
590 /* SMPTE RP224 http://www.smpte-ra.org/mdd/index.html */
591 static const MXFDataDefinitionUL mxf_data_definition_uls[] = {
592 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x01,0x00,0x00,0x00 }, CODEC_TYPE_VIDEO },
593 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x02,0x00,0x00,0x00 }, CODEC_TYPE_AUDIO },
594 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x05,0x01,0x03,0x02,0x02,0x02,0x02,0x00,0x00 }, CODEC_TYPE_AUDIO },
595 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_TYPE_DATA },
598 static const MXFCodecUL mxf_codec_uls[] = {
599 /* PictureEssenceCoding */
600 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@ML Long GoP */
602 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 30Mbps PAL */
603 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 40Mbps PAL */
604 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 50Mbps PAL */
606 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML I-Frame */
607 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML Long GoP */
609 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@HL Long GoP */
611 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL I-Frame */
612 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL Long GoP */
614 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x03 }, CODEC_ID_MPEG4, Frame }, /* XDCAM proxy_pal030926.mxf */
615 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x04 }, CODEC_ID_MPEG4, Frame }, /* XDCAM Proxy C0023S01.mxf */
617 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DV25 IEC PAL */
618 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO25 PAL */
619 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO50 PAL */
621 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_JPEG2000, Frame }, /* JPEG2000 Codestream */
623 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_RAWVIDEO, Frame }, /* Uncompressed */
624 /* SoundEssenceCompression */
625 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* Uncompressed */
626 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame },
627 { { 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 */
628 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame },
629 { { 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 */
630 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x01,0x00 }, CODEC_ID_AC3, Frame },
631 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x05,0x00 }, CODEC_ID_MP2, Frame }, /* MP2 or MP3 */
632 //{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x1C,0x00 }, CODEC_ID_DOLBY_E, Frame }, /* Dolby-E */
633 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
636 static const MXFCodecUL mxf_picture_essence_container_uls[] = {
637 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MPEG-ES Frame wrapped */
638 { { 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 */
639 { { 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 */
640 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
643 static const MXFCodecUL mxf_sound_essence_container_uls[] = {
644 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* BWF Frame wrapped */
645 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* AES Frame wrapped */
646 { { 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 */
647 { { 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 */
648 { { 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 */
649 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
650 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 40Mbps PAL Extended Template */
651 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 50Mbps PAL Extended Template */
652 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
656 * Match an uid independently of the version byte and up to len common bytes
659 static int mxf_match_uid(const UID key, const UID uid, int len)
662 for (i = 0; i < len; i++) {
663 if (i != 7 && key[i] != uid[i])
669 static const MXFCodecUL *mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid)
671 while (uls->id != CODEC_ID_NONE) {
672 if(mxf_match_uid(uls->uid, *uid, 16))
679 static enum CodecType mxf_get_codec_type(const MXFDataDefinitionUL *uls, UID *uid)
681 while (uls->type != CODEC_TYPE_DATA) {
682 if(mxf_match_uid(uls->uid, *uid, 16))
689 static void *mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref, enum MXFMetadataSetType type)
695 for (i = 0; i < mxf->metadata_sets_count; i++) {
696 if (!memcmp(*strong_ref, mxf->metadata_sets[i]->uid, 16) &&
697 (type == AnyType || mxf->metadata_sets[i]->type == type)) {
698 return mxf->metadata_sets[i];
704 static int mxf_parse_structural_metadata(MXFContext *mxf)
706 MXFPackage *material_package = NULL;
707 MXFPackage *temp_package = NULL;
710 dprintf(mxf->fc, "metadata sets count %d\n", mxf->metadata_sets_count);
711 /* TODO: handle multiple material packages (OP3x) */
712 for (i = 0; i < mxf->packages_count; i++) {
713 material_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[i], MaterialPackage);
714 if (material_package) break;
716 if (!material_package) {
717 av_log(mxf->fc, AV_LOG_ERROR, "no material package found\n");
721 for (i = 0; i < material_package->tracks_count; i++) {
722 MXFPackage *source_package = NULL;
723 MXFTrack *material_track = NULL;
724 MXFTrack *source_track = NULL;
725 MXFTrack *temp_track = NULL;
726 MXFDescriptor *descriptor = NULL;
727 MXFStructuralComponent *component = NULL;
728 UID *essence_container_ul = NULL;
729 const MXFCodecUL *codec_ul = NULL;
730 const MXFCodecUL *container_ul = NULL;
733 if (!(material_track = mxf_resolve_strong_ref(mxf, &material_package->tracks_refs[i], Track))) {
734 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track strong ref\n");
738 if (!(material_track->sequence = mxf_resolve_strong_ref(mxf, &material_track->sequence_ref, Sequence))) {
739 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track sequence strong ref\n");
743 /* TODO: handle multiple source clips */
744 for (j = 0; j < material_track->sequence->structural_components_count; j++) {
745 /* TODO: handle timecode component */
746 component = mxf_resolve_strong_ref(mxf, &material_track->sequence->structural_components_refs[j], SourceClip);
750 for (k = 0; k < mxf->packages_count; k++) {
751 temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[k], SourcePackage);
754 if (!memcmp(temp_package->package_uid, component->source_package_uid, 16)) {
755 source_package = temp_package;
759 if (!source_package) {
760 av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source package found\n", material_track->track_id);
763 for (k = 0; k < source_package->tracks_count; k++) {
764 if (!(temp_track = mxf_resolve_strong_ref(mxf, &source_package->tracks_refs[k], Track))) {
765 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track strong ref\n");
768 if (temp_track->track_id == component->source_track_id) {
769 source_track = temp_track;
774 av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source track found\n", material_track->track_id);
781 st = av_new_stream(mxf->fc, source_track->track_id);
782 st->priv_data = source_track;
783 st->duration = component->duration;
784 if (st->duration == -1)
785 st->duration = AV_NOPTS_VALUE;
786 st->start_time = component->start_position;
787 av_set_pts_info(st, 64, material_track->edit_rate.num, material_track->edit_rate.den);
789 if (!(source_track->sequence = mxf_resolve_strong_ref(mxf, &source_track->sequence_ref, Sequence))) {
790 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track sequence strong ref\n");
795 PRINT_KEY(mxf->fc, "data definition ul", source_track->sequence->data_definition_ul);
797 st->codec->codec_type = mxf_get_codec_type(mxf_data_definition_uls, &source_track->sequence->data_definition_ul);
799 source_package->descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor_ref, AnyType);
800 if (source_package->descriptor) {
801 if (source_package->descriptor->type == MultipleDescriptor) {
802 for (j = 0; j < source_package->descriptor->sub_descriptors_count; j++) {
803 MXFDescriptor *sub_descriptor = mxf_resolve_strong_ref(mxf, &source_package->descriptor->sub_descriptors_refs[j], Descriptor);
805 if (!sub_descriptor) {
806 av_log(mxf->fc, AV_LOG_ERROR, "could not resolve sub descriptor strong ref\n");
809 if (sub_descriptor->linked_track_id == source_track->track_id) {
810 descriptor = sub_descriptor;
814 } else if (source_package->descriptor->type == Descriptor)
815 descriptor = source_package->descriptor;
818 av_log(mxf->fc, AV_LOG_INFO, "source track %d: stream %d, no descriptor found\n", source_track->track_id, st->index);
822 PRINT_KEY(mxf->fc, "essence codec ul", descriptor->essence_codec_ul);
823 PRINT_KEY(mxf->fc, "essence container ul", descriptor->essence_container_ul);
825 essence_container_ul = &descriptor->essence_container_ul;
826 /* HACK: replacing the original key with mxf_encrypted_essence_container
827 * is not allowed according to s429-6, try to find correct information anyway */
828 if (IS_KLV_KEY(essence_container_ul, mxf_encrypted_essence_container)) {
829 av_log(mxf->fc, AV_LOG_INFO, "broken encrypted mxf file\n");
830 for (k = 0; k < mxf->metadata_sets_count; k++) {
831 MXFMetadataSet *metadata = mxf->metadata_sets[k];
832 if (metadata->type == CryptoContext) {
833 essence_container_ul = &((MXFCryptoContext *)metadata)->source_container_ul;
838 /* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
839 codec_ul = mxf_get_codec_ul(mxf_codec_uls, &descriptor->essence_codec_ul);
840 st->codec->codec_id = codec_ul->id;
841 if (descriptor->extradata) {
842 st->codec->extradata = descriptor->extradata;
843 st->codec->extradata_size = descriptor->extradata_size;
845 if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
846 container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
847 if (st->codec->codec_id == CODEC_ID_NONE)
848 st->codec->codec_id = container_ul->id;
849 st->codec->width = descriptor->width;
850 st->codec->height = descriptor->height;
851 st->codec->bits_per_sample = descriptor->bits_per_sample; /* Uncompressed */
852 st->need_parsing = AVSTREAM_PARSE_HEADERS;
853 } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
854 container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul);
855 if (st->codec->codec_id == CODEC_ID_NONE)
856 st->codec->codec_id = container_ul->id;
857 st->codec->channels = descriptor->channels;
858 st->codec->bits_per_sample = descriptor->bits_per_sample;
859 st->codec->sample_rate = descriptor->sample_rate.num / descriptor->sample_rate.den;
860 /* TODO: implement CODEC_ID_RAWAUDIO */
861 if (st->codec->codec_id == CODEC_ID_PCM_S16LE) {
862 if (descriptor->bits_per_sample == 24)
863 st->codec->codec_id = CODEC_ID_PCM_S24LE;
864 else if (descriptor->bits_per_sample == 32)
865 st->codec->codec_id = CODEC_ID_PCM_S32LE;
866 } else if (st->codec->codec_id == CODEC_ID_PCM_S16BE) {
867 if (descriptor->bits_per_sample == 24)
868 st->codec->codec_id = CODEC_ID_PCM_S24BE;
869 else if (descriptor->bits_per_sample == 32)
870 st->codec->codec_id = CODEC_ID_PCM_S32BE;
871 if (descriptor->essence_container_ul[13] == 0x01) /* D-10 Mapping */
872 st->codec->channels = 8; /* force channels to 8 */
873 } else if (st->codec->codec_id == CODEC_ID_MP2) {
874 st->need_parsing = AVSTREAM_PARSE_FULL;
877 if (container_ul && container_ul->wrapping == Clip) {
878 dprintf(mxf->fc, "stream %d: clip wrapped essence\n", st->index);
879 st->need_parsing = AVSTREAM_PARSE_FULL;
885 static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
886 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 }, mxf_read_metadata_content_storage, 0, AnyType },
887 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 }, mxf_read_metadata_source_package, sizeof(MXFPackage), SourcePackage },
888 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 }, mxf_read_metadata_material_package, sizeof(MXFPackage), MaterialPackage },
889 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 }, mxf_read_metadata_sequence, sizeof(MXFSequence), Sequence },
890 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 }, mxf_read_metadata_source_clip, sizeof(MXFStructuralComponent), SourceClip },
891 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), MultipleDescriptor },
892 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* Generic Sound */
893 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* CDCI */
894 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* RGBA */
895 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* MPEG 2 Video */
896 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* Wave */
897 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_metadata_generic_descriptor, sizeof(MXFDescriptor), Descriptor }, /* AES3 */
898 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_metadata_track, sizeof(MXFTrack), Track }, /* Static Track */
899 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_metadata_track, sizeof(MXFTrack), Track }, /* Generic Track */
900 { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x04,0x01,0x02,0x02,0x00,0x00 }, mxf_read_metadata_cryptographic_context, sizeof(MXFCryptoContext), CryptoContext },
901 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, 0, AnyType },
904 static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, int (*read_child)(), int ctx_size, enum MXFMetadataSetType type)
906 ByteIOContext *pb = &mxf->fc->pb;
907 MXFMetadataSet *ctx = ctx_size ? av_mallocz(ctx_size) : mxf;
908 uint64_t klv_end= url_ftell(pb) + klv->length;
910 while (url_ftell(pb) + 4 < klv_end) {
911 int tag = get_be16(pb);
912 int size = get_be16(pb); /* KLV specified by 0x53 */
913 uint64_t next= url_ftell(pb) + size;
915 if (!size) { /* ignore empty tag, needed for some files with empty UMID tag */
916 av_log(mxf->fc, AV_LOG_ERROR, "local tag 0x%04X with 0 size\n", tag);
919 if(ctx_size && tag == 0x3C0A)
920 get_buffer(pb, ctx->uid, 16);
922 read_child(ctx, pb, tag, size);
924 url_fseek(pb, next, SEEK_SET);
926 if (ctx_size) ctx->type = type;
927 return ctx_size ? mxf_add_metadata_set(mxf, ctx) : 0;
930 static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
932 MXFContext *mxf = s->priv_data;
935 mxf->sync_key = mxf_essence_element_key;
936 if (!mxf_read_sync(&s->pb, mxf_header_partition_pack_key, 14)) {
937 av_log(s, AV_LOG_ERROR, "could not find header partition pack key\n");
940 url_fseek(&s->pb, -14, SEEK_CUR);
942 while (!url_feof(&s->pb)) {
943 const MXFMetadataReadTableEntry *metadata;
945 if (klv_read_packet(&klv, &s->pb) < 0)
948 PRINT_KEY(s, "read header", klv.key);
950 if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) ||
951 IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
952 /* FIXME avoid seek */
953 url_fseek(&s->pb, klv.offset, SEEK_SET);
957 for (metadata = mxf_metadata_read_table; metadata->read; metadata++) {
958 if (IS_KLV_KEY(klv.key, metadata->key)) {
959 if (mxf_read_local_tags(mxf, &klv, metadata->read, metadata->ctx_size, metadata->type) < 0) {
960 av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
967 url_fskip(&s->pb, klv.length);
969 return mxf_parse_structural_metadata(mxf);
972 static int mxf_read_close(AVFormatContext *s)
974 MXFContext *mxf = s->priv_data;
977 av_freep(&mxf->packages_refs);
978 for (i = 0; i < mxf->metadata_sets_count; i++) {
979 switch (mxf->metadata_sets[i]->type) {
980 case MultipleDescriptor:
981 av_freep(&((MXFDescriptor *)mxf->metadata_sets[i])->sub_descriptors_refs);
984 av_freep(&((MXFSequence *)mxf->metadata_sets[i])->structural_components_refs);
987 case MaterialPackage:
988 av_freep(&((MXFPackage *)mxf->metadata_sets[i])->tracks_refs);
993 av_freep(&mxf->metadata_sets[i]);
995 av_freep(&mxf->metadata_sets);
996 av_freep(&mxf->aesc);
1000 static int mxf_probe(AVProbeData *p) {
1001 uint8_t *bufp = p->buf;
1002 uint8_t *end = p->buf + p->buf_size;
1004 if (p->buf_size < sizeof(mxf_header_partition_pack_key))
1007 /* Must skip Run-In Sequence and search for MXF header partition pack key SMPTE 377M 5.5 */
1008 end -= sizeof(mxf_header_partition_pack_key);
1009 for (; bufp < end; bufp++) {
1010 if (IS_KLV_KEY(bufp, mxf_header_partition_pack_key))
1011 return AVPROBE_SCORE_MAX;
1016 /* rudimentary byte seek */
1017 /* XXX: use MXF Index */
1018 static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
1020 AVStream *st = s->streams[stream_index];
1025 if (sample_time < 0)
1027 seconds = av_rescale(sample_time, st->time_base.num, st->time_base.den);
1028 url_fseek(&s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET);
1029 av_update_cur_dts(s, st, sample_time);
1033 AVInputFormat mxf_demuxer = {