diff --git a/libavformat/mxf.c b/libavformat/mxf.c deleted file mode 100644 index ccba07d12c..0000000000 --- a/libavformat/mxf.c +++ /dev/null @@ -1,1074 +0,0 @@ -/* - * MXF demuxer. - * Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier . - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* - * References - * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value - * SMPTE 377M MXF File Format Specifications - * SMPTE 378M Operational Pattern 1a - * SMPTE 379M MXF Generic Container - * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container - * SMPTE 382M Mapping AES3 and Broadcast Wave Audio into the MXF Generic Container - * SMPTE 383M Mapping DV-DIF Data to the MXF Generic Container - * - * Principle - * Search for Track numbers which will identify essence element KLV packets. - * Search for SourcePackage which define tracks which contains Track numbers. - * Material Package contains tracks with reference to SourcePackage tracks. - * Search for Descriptors (Picture, Sound) which contains codec info and parameters. - * Assign Descriptors to correct Tracks. - * - * Metadata reading functions read Local Tags, get InstanceUID(0x3C0A) then add MetaDataSet to MXFContext. - * Metadata parsing resolves Strong References to objects. - * - * Simple demuxer, only OP1A supported and some files might not work at all. - * Only tracks with associated descriptors will be decoded. "Highly Desirable" SMPTE 377M D.1 - */ - -//#define DEBUG - -#include "libavutil/aes.h" -#include "libavcodec/bytestream.h" -#include "avformat.h" - -typedef uint8_t UID[16]; - -enum MXFMetadataSetType { - AnyType, - MaterialPackage, - SourcePackage, - SourceClip, - TimecodeComponent, - Sequence, - MultipleDescriptor, - Descriptor, - Track, - CryptoContext, -}; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; - UID source_container_ul; -} MXFCryptoContext; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; - UID source_package_uid; - UID data_definition_ul; - int64_t duration; - int64_t start_position; - int source_track_id; -} MXFStructuralComponent; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; - UID data_definition_ul; - UID *structural_components_refs; - int structural_components_count; - int64_t duration; -} MXFSequence; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; - MXFSequence *sequence; /* mandatory, and only one */ - UID sequence_ref; - int track_id; - uint8_t track_number[4]; - AVRational edit_rate; -} MXFTrack; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; - UID essence_container_ul; - UID essence_codec_ul; - AVRational sample_rate; - AVRational aspect_ratio; - int width; - int height; - int channels; - int bits_per_sample; - UID *sub_descriptors_refs; - int sub_descriptors_count; - int linked_track_id; - uint8_t *extradata; - int extradata_size; -} MXFDescriptor; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; - UID package_uid; - UID *tracks_refs; - int tracks_count; - MXFDescriptor *descriptor; /* only one */ - UID descriptor_ref; -} MXFPackage; - -typedef struct { - UID uid; - enum MXFMetadataSetType type; -} MXFMetadataSet; - -typedef struct { - UID *packages_refs; - int packages_count; - MXFMetadataSet **metadata_sets; - int metadata_sets_count; - AVFormatContext *fc; - struct AVAES *aesc; - uint8_t *local_tags; - int local_tags_count; -} MXFContext; - -typedef struct { - UID key; - offset_t offset; - uint64_t length; -} KLVPacket; - -enum MXFWrappingScheme { - Frame, - Clip, -}; - -typedef struct { - UID uid; - unsigned matching_len; - enum CodecID id; -} MXFCodecUL; - -typedef struct { - UID uid; - enum CodecType type; -} MXFDataDefinitionUL; - -typedef struct { - const UID key; - int (*read)(); - int ctx_size; - enum MXFMetadataSetType type; -} MXFMetadataReadTableEntry; - -/* partial keys to match */ -static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 }; -static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 }; -static const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 }; -/* complete keys to match */ -static const uint8_t mxf_crypto_source_container_ul[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x02,0x02,0x00,0x00,0x00 }; -static const uint8_t mxf_encrypted_triplet_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 }; -static const uint8_t mxf_encrypted_essence_container[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 }; -static const uint8_t mxf_sony_mpeg4_extradata[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0e,0x06,0x06,0x02,0x02,0x01,0x00,0x00 }; - -#define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y))) - -#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, \ - (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]) - -static int64_t klv_decode_ber_length(ByteIOContext *pb) -{ - uint64_t size = get_byte(pb); - if (size & 0x80) { /* long form */ - int bytes_num = size & 0x7f; - /* SMPTE 379M 5.3.4 guarantee that bytes_num must not exceed 8 bytes */ - if (bytes_num > 8) - return -1; - size = 0; - while (bytes_num--) - size = size << 8 | get_byte(pb); - } - return size; -} - -static int mxf_read_sync(ByteIOContext *pb, const uint8_t *key, unsigned size) -{ - int i, b; - for (i = 0; i < size && !url_feof(pb); i++) { - b = get_byte(pb); - if (b == key[0]) - i = 0; - else if (b != key[i]) - i = -1; - } - return i == size; -} - -static int klv_read_packet(KLVPacket *klv, ByteIOContext *pb) -{ - if (!mxf_read_sync(pb, mxf_klv_key, 4)) - return -1; - klv->offset = url_ftell(pb) - 4; - memcpy(klv->key, mxf_klv_key, 4); - get_buffer(pb, klv->key + 4, 12); - klv->length = klv_decode_ber_length(pb); - return klv->length == -1 ? -1 : 0; -} - -static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv) -{ - int i; - - for (i = 0; i < s->nb_streams; i++) { - MXFTrack *track = s->streams[i]->priv_data; - /* SMPTE 379M 7.3 */ - if (!memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number))) - return i; - } - /* return 0 if only one stream, for OP Atom files with 0 as track number */ - return s->nb_streams == 1 ? 0 : -1; -} - -/* XXX: use AVBitStreamFilter */ -static int mxf_get_d10_aes3_packet(ByteIOContext *pb, AVStream *st, AVPacket *pkt, int64_t length) -{ - uint8_t buffer[61444]; - const uint8_t *buf_ptr, *end_ptr; - uint8_t *data_ptr; - int i; - - if (length > 61444) /* worst case PAL 1920 samples 8 channels */ - return -1; - get_buffer(pb, buffer, length); - av_new_packet(pkt, length); - data_ptr = pkt->data; - end_ptr = buffer + length; - buf_ptr = buffer + 4; /* skip SMPTE 331M header */ - for (; buf_ptr < end_ptr; ) { - for (i = 0; i < st->codec->channels; i++) { - uint32_t sample = bytestream_get_le32(&buf_ptr); - if (st->codec->bits_per_sample == 24) - bytestream_put_le24(&data_ptr, (sample >> 4) & 0xffffff); - else - bytestream_put_le16(&data_ptr, (sample >> 12) & 0xffff); - } - buf_ptr += 32 - st->codec->channels*4; // always 8 channels stored SMPTE 331M - } - pkt->size = data_ptr - pkt->data; - return 0; -} - -static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv) -{ - static const uint8_t checkv[16] = {0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b}; - MXFContext *mxf = s->priv_data; - ByteIOContext *pb = s->pb; - offset_t end = url_ftell(pb) + klv->length; - uint64_t size; - uint64_t orig_size; - uint64_t plaintext_size; - uint8_t ivec[16]; - uint8_t tmpbuf[16]; - int index; - - if (!mxf->aesc && s->key && s->keylen == 16) { - mxf->aesc = av_malloc(av_aes_size); - if (!mxf->aesc) - return -1; - av_aes_init(mxf->aesc, s->key, 128, 1); - } - // crypto context - url_fskip(pb, klv_decode_ber_length(pb)); - // plaintext offset - klv_decode_ber_length(pb); - plaintext_size = get_be64(pb); - // source klv key - klv_decode_ber_length(pb); - get_buffer(pb, klv->key, 16); - if (!IS_KLV_KEY(klv, mxf_essence_element_key)) - return -1; - index = mxf_get_stream_index(s, klv); - if (index < 0) - return -1; - // source size - klv_decode_ber_length(pb); - orig_size = get_be64(pb); - if (orig_size < plaintext_size) - return -1; - // enc. code - size = klv_decode_ber_length(pb); - if (size < 32 || size - 32 < orig_size) - return -1; - get_buffer(pb, ivec, 16); - get_buffer(pb, tmpbuf, 16); - if (mxf->aesc) - av_aes_crypt(mxf->aesc, tmpbuf, tmpbuf, 1, ivec, 1); - if (memcmp(tmpbuf, checkv, 16)) - av_log(s, AV_LOG_ERROR, "probably incorrect decryption key\n"); - size -= 32; - av_get_packet(pb, pkt, size); - size -= plaintext_size; - if (mxf->aesc) - av_aes_crypt(mxf->aesc, &pkt->data[plaintext_size], - &pkt->data[plaintext_size], size >> 4, ivec, 1); - pkt->size = orig_size; - pkt->stream_index = index; - url_fskip(pb, end - url_ftell(pb)); - return 0; -} - -static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - KLVPacket klv; - - while (!url_feof(s->pb)) { - if (klv_read_packet(&klv, s->pb) < 0) - return -1; -#ifdef DEBUG - PRINT_KEY(s, "read packet", klv.key); -#endif - if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key)) { - int res = mxf_decrypt_triplet(s, pkt, &klv); - if (res < 0) { - av_log(s, AV_LOG_ERROR, "invalid encoded triplet\n"); - return -1; - } - return 0; - } - if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) { - int index = mxf_get_stream_index(s, &klv); - if (index < 0) { - av_log(s, AV_LOG_ERROR, "error getting stream index %x\n", AV_RB32(klv.key+12)); - goto skip; - } - if (s->streams[index]->discard == AVDISCARD_ALL) - goto skip; - /* check for 8 channels AES3 element */ - if (klv.key[12] == 0x06 && klv.key[13] == 0x01 && klv.key[14] == 0x10) { - if (mxf_get_d10_aes3_packet(s->pb, s->streams[index], pkt, klv.length) < 0) { - av_log(s, AV_LOG_ERROR, "error reading D-10 aes3 frame\n"); - return -1; - } - } else - av_get_packet(s->pb, pkt, klv.length); - pkt->stream_index = index; - pkt->pos = klv.offset; - return 0; - } else - skip: - url_fskip(s->pb, klv.length); - } - return AVERROR(EIO); -} - -static int mxf_read_primer_pack(MXFContext *mxf) -{ - ByteIOContext *pb = mxf->fc->pb; - int item_num = get_be32(pb); - int item_len = get_be32(pb); - - if (item_len != 18) { - av_log(mxf->fc, AV_LOG_ERROR, "unsupported primer pack item length\n"); - return -1; - } - if (item_num > UINT_MAX / item_len) - return -1; - mxf->local_tags_count = item_num; - mxf->local_tags = av_malloc(item_num*item_len); - if (!mxf->local_tags) - return -1; - get_buffer(pb, mxf->local_tags, item_num*item_len); - return 0; -} - -static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set) -{ - mxf->metadata_sets = av_realloc(mxf->metadata_sets, (mxf->metadata_sets_count + 1) * sizeof(*mxf->metadata_sets)); - if (!mxf->metadata_sets) - return -1; - mxf->metadata_sets[mxf->metadata_sets_count] = metadata_set; - mxf->metadata_sets_count++; - return 0; -} - -static int mxf_read_cryptographic_context(MXFCryptoContext *cryptocontext, ByteIOContext *pb, int tag, int size, UID uid) -{ - if (size != 16) - return -1; - if (IS_KLV_KEY(uid, mxf_crypto_source_container_ul)) - get_buffer(pb, cryptocontext->source_container_ul, 16); - return 0; -} - -static int mxf_read_content_storage(MXFContext *mxf, ByteIOContext *pb, int tag) -{ - switch (tag) { - case 0x1901: - mxf->packages_count = get_be32(pb); - if (mxf->packages_count >= UINT_MAX / sizeof(UID)) - return -1; - mxf->packages_refs = av_malloc(mxf->packages_count * sizeof(UID)); - if (!mxf->packages_refs) - return -1; - url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */ - get_buffer(pb, (uint8_t *)mxf->packages_refs, mxf->packages_count * sizeof(UID)); - break; - } - return 0; -} - -static int mxf_read_source_clip(MXFStructuralComponent *source_clip, ByteIOContext *pb, int tag) -{ - switch(tag) { - case 0x0202: - source_clip->duration = get_be64(pb); - break; - case 0x1201: - source_clip->start_position = get_be64(pb); - break; - case 0x1101: - /* UMID, only get last 16 bytes */ - url_fskip(pb, 16); - get_buffer(pb, source_clip->source_package_uid, 16); - break; - case 0x1102: - source_clip->source_track_id = get_be32(pb); - break; - } - return 0; -} - -static int mxf_read_material_package(MXFPackage *package, ByteIOContext *pb, int tag) -{ - switch(tag) { - case 0x4403: - package->tracks_count = get_be32(pb); - if (package->tracks_count >= UINT_MAX / sizeof(UID)) - return -1; - package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID)); - if (!package->tracks_refs) - return -1; - url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */ - get_buffer(pb, (uint8_t *)package->tracks_refs, package->tracks_count * sizeof(UID)); - break; - } - return 0; -} - -static int mxf_read_track(MXFTrack *track, ByteIOContext *pb, int tag) -{ - switch(tag) { - case 0x4801: - track->track_id = get_be32(pb); - break; - case 0x4804: - get_buffer(pb, track->track_number, 4); - break; - case 0x4B01: - track->edit_rate.den = get_be32(pb); - track->edit_rate.num = get_be32(pb); - break; - case 0x4803: - get_buffer(pb, track->sequence_ref, 16); - break; - } - return 0; -} - -static int mxf_read_sequence(MXFSequence *sequence, ByteIOContext *pb, int tag) -{ - switch(tag) { - case 0x0202: - sequence->duration = get_be64(pb); - break; - case 0x0201: - get_buffer(pb, sequence->data_definition_ul, 16); - break; - case 0x1001: - sequence->structural_components_count = get_be32(pb); - if (sequence->structural_components_count >= UINT_MAX / sizeof(UID)) - return -1; - sequence->structural_components_refs = av_malloc(sequence->structural_components_count * sizeof(UID)); - if (!sequence->structural_components_refs) - return -1; - url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */ - get_buffer(pb, (uint8_t *)sequence->structural_components_refs, sequence->structural_components_count * sizeof(UID)); - break; - } - return 0; -} - -static int mxf_read_source_package(MXFPackage *package, ByteIOContext *pb, int tag) -{ - switch(tag) { - case 0x4403: - package->tracks_count = get_be32(pb); - if (package->tracks_count >= UINT_MAX / sizeof(UID)) - return -1; - package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID)); - if (!package->tracks_refs) - return -1; - url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */ - get_buffer(pb, (uint8_t *)package->tracks_refs, package->tracks_count * sizeof(UID)); - break; - case 0x4401: - /* UMID, only get last 16 bytes */ - url_fskip(pb, 16); - get_buffer(pb, package->package_uid, 16); - break; - case 0x4701: - get_buffer(pb, package->descriptor_ref, 16); - break; - } - return 0; -} - -static void mxf_read_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor) -{ - int code; - - do { - code = get_byte(pb); - dprintf(NULL, "pixel layout: code 0x%x\n", code); - switch (code) { - case 0x52: /* R */ - descriptor->bits_per_sample += get_byte(pb); - break; - case 0x47: /* G */ - descriptor->bits_per_sample += get_byte(pb); - break; - case 0x42: /* B */ - descriptor->bits_per_sample += get_byte(pb); - break; - default: - get_byte(pb); - } - } while (code != 0); /* SMPTE 377M E.2.46 */ -} - -static int mxf_read_generic_descriptor(MXFDescriptor *descriptor, ByteIOContext *pb, int tag, int size, UID uid) -{ - switch(tag) { - case 0x3F01: - descriptor->sub_descriptors_count = get_be32(pb); - if (descriptor->sub_descriptors_count >= UINT_MAX / sizeof(UID)) - return -1; - descriptor->sub_descriptors_refs = av_malloc(descriptor->sub_descriptors_count * sizeof(UID)); - if (!descriptor->sub_descriptors_refs) - return -1; - url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */ - get_buffer(pb, (uint8_t *)descriptor->sub_descriptors_refs, descriptor->sub_descriptors_count * sizeof(UID)); - break; - case 0x3004: - get_buffer(pb, descriptor->essence_container_ul, 16); - break; - case 0x3006: - descriptor->linked_track_id = get_be32(pb); - break; - case 0x3201: /* PictureEssenceCoding */ - get_buffer(pb, descriptor->essence_codec_ul, 16); - break; - case 0x3203: - descriptor->width = get_be32(pb); - break; - case 0x3202: - descriptor->height = get_be32(pb); - break; - case 0x320E: - descriptor->aspect_ratio.num = get_be32(pb); - descriptor->aspect_ratio.den = get_be32(pb); - break; - case 0x3D03: - descriptor->sample_rate.num = get_be32(pb); - descriptor->sample_rate.den = get_be32(pb); - break; - case 0x3D06: /* SoundEssenceCompression */ - get_buffer(pb, descriptor->essence_codec_ul, 16); - break; - case 0x3D07: - descriptor->channels = get_be32(pb); - break; - case 0x3D01: - descriptor->bits_per_sample = get_be32(pb); - break; - case 0x3401: - mxf_read_pixel_layout(pb, descriptor); - break; - default: - /* Private uid used by SONY C0023S01.mxf */ - if (IS_KLV_KEY(uid, mxf_sony_mpeg4_extradata)) { - descriptor->extradata = av_malloc(size); - if (!descriptor->extradata) - return -1; - descriptor->extradata_size = size; - get_buffer(pb, descriptor->extradata, size); - } - break; - } - return 0; -} - -/* SMPTE RP224 http://www.smpte-ra.org/mdd/index.html */ -static const MXFDataDefinitionUL mxf_data_definition_uls[] = { - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x01,0x00,0x00,0x00 }, CODEC_TYPE_VIDEO }, - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x02,0x00,0x00,0x00 }, CODEC_TYPE_AUDIO }, - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x05,0x01,0x03,0x02,0x02,0x02,0x02,0x00,0x00 }, CODEC_TYPE_AUDIO }, - { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_TYPE_DATA }, -}; - -static const MXFCodecUL mxf_codec_uls[] = { - /* PictureEssenceCoding */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, 14, CODEC_ID_MPEG2VIDEO }, /* MP@ML Long GoP */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, 14, CODEC_ID_MPEG2VIDEO }, /* D-10 50Mbps PAL */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, 14, CODEC_ID_MPEG2VIDEO }, /* MP@HL Long GoP */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, 14, CODEC_ID_MPEG2VIDEO }, /* 422P@HL I-Frame */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x03 }, 14, CODEC_ID_MPEG4 }, /* XDCAM proxy_pal030926.mxf */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, 13, CODEC_ID_DVVIDEO }, /* DV25 IEC PAL */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, 14, CODEC_ID_JPEG2000 }, /* JPEG2000 Codestream */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, 13, CODEC_ID_RAWVIDEO }, /* Uncompressed */ - /* SoundEssenceCompression */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 13, CODEC_ID_PCM_S16LE }, /* Uncompressed */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, 13, CODEC_ID_PCM_S16LE }, - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x02,0x02,0x01,0x7E,0x00,0x00,0x00 }, 13, CODEC_ID_PCM_S16BE }, /* From Omneon MXF file */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x04,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, 15, CODEC_ID_PCM_ALAW }, /* XDCAM Proxy C0023S01.mxf */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x01,0x00 }, 15, CODEC_ID_AC3 }, - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x05,0x00 }, 15, CODEC_ID_MP2 }, /* MP2 or MP3 */ - //{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x1C,0x00 }, 15, CODEC_ID_DOLBY_E }, /* Dolby-E */ - { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE }, -}; - -static const MXFCodecUL mxf_picture_essence_container_uls[] = { - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, 14, CODEC_ID_MPEG2VIDEO }, /* MPEG-ES Frame wrapped */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, 14, CODEC_ID_DVVIDEO }, /* DV 625 25mbps */ - { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE }, -}; - -static const MXFCodecUL mxf_sound_essence_container_uls[] = { - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, 14, CODEC_ID_PCM_S16LE }, /* BWF Frame wrapped */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, 14, CODEC_ID_MP2 }, /* MPEG-ES Frame wrapped, 0x40 ??? stream id */ - { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, 14, CODEC_ID_PCM_S16LE }, /* D-10 Mapping 50Mbps PAL Extended Template */ - { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE }, -}; - -/* - * Match an uid independently of the version byte and up to len common bytes - * Returns: boolean - */ -static int mxf_match_uid(const UID key, const UID uid, int len) -{ - int i; - for (i = 0; i < len; i++) { - if (i != 7 && key[i] != uid[i]) - return 0; - } - return 1; -} - -static const MXFCodecUL *mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid) -{ - while (uls->id != CODEC_ID_NONE) { - if(mxf_match_uid(uls->uid, *uid, uls->matching_len)) - break; - uls++; - } - return uls; -} - -static enum CodecType mxf_get_codec_type(const MXFDataDefinitionUL *uls, UID *uid) -{ - while (uls->type != CODEC_TYPE_DATA) { - if(mxf_match_uid(uls->uid, *uid, 16)) - break; - uls++; - } - return uls->type; -} - -static void *mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref, enum MXFMetadataSetType type) -{ - int i; - - if (!strong_ref) - return NULL; - for (i = 0; i < mxf->metadata_sets_count; i++) { - if (!memcmp(*strong_ref, mxf->metadata_sets[i]->uid, 16) && - (type == AnyType || mxf->metadata_sets[i]->type == type)) { - return mxf->metadata_sets[i]; - } - } - return NULL; -} - -static int mxf_parse_structural_metadata(MXFContext *mxf) -{ - MXFPackage *material_package = NULL; - MXFPackage *temp_package = NULL; - int i, j, k; - - dprintf(mxf->fc, "metadata sets count %d\n", mxf->metadata_sets_count); - /* TODO: handle multiple material packages (OP3x) */ - for (i = 0; i < mxf->packages_count; i++) { - material_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[i], MaterialPackage); - if (material_package) break; - } - if (!material_package) { - av_log(mxf->fc, AV_LOG_ERROR, "no material package found\n"); - return -1; - } - - for (i = 0; i < material_package->tracks_count; i++) { - MXFPackage *source_package = NULL; - MXFTrack *material_track = NULL; - MXFTrack *source_track = NULL; - MXFTrack *temp_track = NULL; - MXFDescriptor *descriptor = NULL; - MXFStructuralComponent *component = NULL; - UID *essence_container_ul = NULL; - const MXFCodecUL *codec_ul = NULL; - const MXFCodecUL *container_ul = NULL; - AVStream *st; - - if (!(material_track = mxf_resolve_strong_ref(mxf, &material_package->tracks_refs[i], Track))) { - av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track strong ref\n"); - continue; - } - - if (!(material_track->sequence = mxf_resolve_strong_ref(mxf, &material_track->sequence_ref, Sequence))) { - av_log(mxf->fc, AV_LOG_ERROR, "could not resolve material track sequence strong ref\n"); - return -1; - } - - /* TODO: handle multiple source clips */ - for (j = 0; j < material_track->sequence->structural_components_count; j++) { - /* TODO: handle timecode component */ - component = mxf_resolve_strong_ref(mxf, &material_track->sequence->structural_components_refs[j], SourceClip); - if (!component) - continue; - - for (k = 0; k < mxf->packages_count; k++) { - temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[k], SourcePackage); - if (!temp_package) - continue; - if (!memcmp(temp_package->package_uid, component->source_package_uid, 16)) { - source_package = temp_package; - break; - } - } - if (!source_package) { - av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source package found\n", material_track->track_id); - break; - } - for (k = 0; k < source_package->tracks_count; k++) { - if (!(temp_track = mxf_resolve_strong_ref(mxf, &source_package->tracks_refs[k], Track))) { - av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track strong ref\n"); - return -1; - } - if (temp_track->track_id == component->source_track_id) { - source_track = temp_track; - break; - } - } - if (!source_track) { - av_log(mxf->fc, AV_LOG_ERROR, "material track %d: no corresponding source track found\n", material_track->track_id); - break; - } - } - if (!source_track) - continue; - - st = av_new_stream(mxf->fc, source_track->track_id); - if (!st) { - av_log(mxf->fc, AV_LOG_ERROR, "could not allocate stream\n"); - return -1; - } - st->priv_data = source_track; - st->duration = component->duration; - if (st->duration == -1) - st->duration = AV_NOPTS_VALUE; - st->start_time = component->start_position; - av_set_pts_info(st, 64, material_track->edit_rate.num, material_track->edit_rate.den); - - 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; - case Track: - mxf->metadata_sets[i] = NULL; /* will be freed later */ - break; - default: - break; - } - av_freep(&mxf->metadata_sets[i]); - } - av_freep(&mxf->metadata_sets); - av_freep(&mxf->aesc); - av_freep(&mxf->local_tags); - return 0; -} - -static int mxf_probe(AVProbeData *p) { - uint8_t *bufp = p->buf; - uint8_t *end = p->buf + p->buf_size; - - if (p->buf_size < sizeof(mxf_header_partition_pack_key)) - return 0; - - /* Must skip Run-In Sequence and search for MXF header partition pack key SMPTE 377M 5.5 */ - end -= sizeof(mxf_header_partition_pack_key); - for (; bufp < end; bufp++) { - if (IS_KLV_KEY(bufp, mxf_header_partition_pack_key)) - return AVPROBE_SCORE_MAX; - } - return 0; -} - -/* rudimentary byte seek */ -/* XXX: use MXF Index */ -static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags) -{ - AVStream *st = s->streams[stream_index]; - int64_t seconds; - - if (!s->bit_rate) - return -1; - if (sample_time < 0) - sample_time = 0; - seconds = av_rescale(sample_time, st->time_base.num, st->time_base.den); - url_fseek(s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET); - av_update_cur_dts(s, st, sample_time); - return 0; -} - -AVInputFormat mxf_demuxer = { - "mxf", - NULL_IF_CONFIG_SMALL("Material eXchange Format"), - sizeof(MXFContext), - mxf_probe, - mxf_read_header, - mxf_read_packet, - mxf_read_close, - mxf_read_seek, -};