[FFmpeg-cvslog] r14826 - in trunk/libavformat: Makefile mxf.c mxf.h mxfdec.c
michael
subversion
Mon Aug 18 19:54:18 CEST 2008
Author: michael
Date: Mon Aug 18 19:54:18 2008
New Revision: 14826
Log:
Factorize common code out of the mxf demuxer.
Patch by zhentan feng.
Added:
trunk/libavformat/mxf.c
- copied, changed from r14825, /trunk/libavformat/mxfdec.c
trunk/libavformat/mxf.h
- copied, changed from r14825, /trunk/libavformat/mxfdec.c
Modified:
trunk/libavformat/Makefile
trunk/libavformat/mxfdec.c
Modified: trunk/libavformat/Makefile
==============================================================================
--- trunk/libavformat/Makefile (original)
+++ trunk/libavformat/Makefile Mon Aug 18 19:54:18 2008
@@ -108,7 +108,7 @@ OBJS-$(CONFIG_MPJPEG_MUXER)
OBJS-$(CONFIG_MSNWC_TCP_DEMUXER) += msnwc_tcp.o
OBJS-$(CONFIG_MTV_DEMUXER) += mtv.o
OBJS-$(CONFIG_MVI_DEMUXER) += mvi.o
-OBJS-$(CONFIG_MXF_DEMUXER) += mxfdec.o
+OBJS-$(CONFIG_MXF_DEMUXER) += mxfdec.o mxf.o
OBJS-$(CONFIG_NSV_DEMUXER) += nsvdec.o
OBJS-$(CONFIG_NULL_MUXER) += raw.o
OBJS-$(CONFIG_NUT_DEMUXER) += nutdec.o nut.o riff.o
Copied: trunk/libavformat/mxf.c (from r14825, /trunk/libavformat/mxfdec.c)
==============================================================================
--- /trunk/libavformat/mxfdec.c (original)
+++ trunk/libavformat/mxf.c Mon Aug 18 19:54:18 2008
@@ -1,5 +1,5 @@
/*
- * MXF demuxer.
+ * MXF
* Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>.
*
* This file is part of FFmpeg.
@@ -19,615 +19,16 @@
* 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;
-}
+#include "mxf.h"
-/* SMPTE RP224 http://www.smpte-ra.org/mdd/index.html */
-static const MXFDataDefinitionUL mxf_data_definition_uls[] = {
+const MXFDataDefinitionUL ff_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[] = {
+const MXFCodecUL ff_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 at 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 */
@@ -648,427 +49,14 @@ static const MXFCodecUL mxf_codec_uls[]
{ { 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[] = {
+const MXFCodecUL ff_mxf_essence_container_uls[] = {
+ // video 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[] = {
+ // 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,
-};
Copied: trunk/libavformat/mxf.h (from r14825, /trunk/libavformat/mxfdec.c)
==============================================================================
--- /trunk/libavformat/mxfdec.c (original)
+++ trunk/libavformat/mxf.h Mon Aug 18 19:54:18 2008
@@ -1,5 +1,5 @@
/*
- * MXF demuxer.
+ * MXF
* Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>.
*
* This file is part of FFmpeg.
@@ -18,36 +18,11 @@
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifndef FFMPEG_MXF_H
+#define FFMPEG_MXF_H
-/*
- * 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"
+#include "libavcodec/bytestream.h"
typedef uint8_t UID[16];
@@ -62,98 +37,18 @@ enum MXFMetadataSetType {
Descriptor,
Track,
CryptoContext,
+ Preface,
+ Identification,
+ ContentStorage,
+ SubDescriptor,
};
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;
@@ -165,910 +60,11 @@ typedef struct {
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)))
+extern const MXFDataDefinitionUL ff_mxf_data_definition_uls[];
+extern const MXFCodecUL ff_mxf_codec_uls[];
+extern const MXFCodecUL ff_mxf_essence_container_uls[];
#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 at 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 at HL Long GoP */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, 14, CODEC_ID_MPEG2VIDEO }, /* 422P at 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,
-};
+#endif /* FFMPEG_MXF_H */
Modified: trunk/libavformat/mxfdec.c
==============================================================================
--- trunk/libavformat/mxfdec.c (original)
+++ trunk/libavformat/mxfdec.c Mon Aug 18 19:54:18 2008
@@ -46,23 +46,7 @@
//#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,
-};
+#include "mxf.h"
typedef struct {
UID uid;
@@ -143,29 +127,12 @@ typedef struct {
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;
@@ -184,9 +151,6 @@ static const uint8_t mxf_sony_mpeg4_extr
#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);
@@ -619,48 +583,6 @@ static int mxf_read_generic_descriptor(M
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 at 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 at HL Long GoP */
- { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, 14, CODEC_ID_MPEG2VIDEO }, /* 422P at 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
@@ -807,7 +729,7 @@ static int mxf_parse_structural_metadata
#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);
+ st->codec->codec_type = mxf_get_codec_type(ff_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) {
@@ -849,14 +771,14 @@ static int mxf_parse_structural_metadata
}
}
/* TODO: drop PictureEssenceCoding and SoundEssenceCompression, only check EssenceContainer */
- codec_ul = mxf_get_codec_ul(mxf_codec_uls, &descriptor->essence_codec_ul);
+ codec_ul = mxf_get_codec_ul(ff_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);
+ container_ul = mxf_get_codec_ul(ff_mxf_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;
@@ -864,7 +786,7 @@ static int mxf_parse_structural_metadata
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);
+ container_ul = mxf_get_codec_ul(ff_mxf_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;
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