* MXF demuxer.
* Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>.
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* Principle
* Search for Track numbers which will identify essence element KLV packets.
* Search for SourcePackage which define tracks which contains Track numbers.
- * Material Package tracks does not contain Tracks 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.
*
- * Preliminary demuxer, only OP1A supported and some files might not work at all.
+ * 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 "avformat.h"
-#include "dsputil.h"
-#include "riff.h"
-typedef DECLARE_ALIGNED_16(uint8_t, UID[16]);
+typedef uint8_t UID[16];
-typedef struct {
- AVStream *stream;
- UID track_uid;
- UID sequence_uid;
+enum MXFMetadataSetType {
+ MaterialPackage,
+ SourcePackage,
+ SourceClip,
+ TimecodeComponent,
+ Sequence,
+ MultipleDescriptor,
+ Descriptor,
+ Track,
+ EssenceContainerData,
+};
+
+typedef struct MXFStructuralComponent {
+ 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 MXFSequence {
+ UID uid;
+ enum MXFMetadataSetType type;
+ UID data_definition_ul;
+ UID *structural_components_refs;
+ int structural_components_count;
+ int64_t duration;
+} MXFSequence;
+
+typedef struct MXFTrack {
+ UID uid;
+ enum MXFMetadataSetType type;
+ MXFSequence *sequence; /* mandatory, and only one */
+ UID sequence_ref;
int track_id;
- int track_number;
+ uint8_t track_number[4];
+ AVRational edit_rate;
} MXFTrack;
-typedef struct {
- UID essence_container;
- UID essence_compression;
- enum CodecType codec_type;
+typedef struct MXFDescriptor {
+ 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;
- int block_align;
+ UID *sub_descriptors_refs;
+ int sub_descriptors_count;
int linked_track_id;
- int kind;
+ uint8_t *extradata;
+ int extradata_size;
} MXFDescriptor;
+typedef struct MXFPackage {
+ UID uid;
+ enum MXFMetadataSetType type;
+ UID package_uid;
+ UID *tracks_refs;
+ int tracks_count;
+ MXFDescriptor *descriptor; /* only one */
+ UID descriptor_ref;
+} MXFPackage;
+
+typedef struct MXFEssenceContainerData {
+ UID uid;
+ enum MXFMetadataSetType type;
+ UID linked_package_uid;
+} MXFEssenceContainerData;
+
typedef struct {
+ UID uid;
+ enum MXFMetadataSetType type;
+} MXFMetadataSet;
+
+typedef struct MXFContext {
+ UID *packages_refs;
+ int packages_count;
+ UID *essence_container_data_sets_refs;
+ int essence_container_data_sets_count;
+ UID *essence_containers_uls; /* Universal Labels SMPTE RP224 */
+ int essence_containers_uls_count;
+ UID operational_pattern_ul;
+ UID content_storage_uid;
+ MXFMetadataSet **metadata_sets;
+ int metadata_sets_count;
AVFormatContext *fc;
- MXFTrack *tracks;
- MXFDescriptor *descriptors;
- int descriptors_count;
- int tracks_count;
} MXFContext;
-typedef struct {
+typedef struct KLVPacket {
UID key;
offset_t offset;
uint64_t length;
} KLVPacket;
-static const UID mxf_metadata_source_package_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x37, 0x00 };
-static const UID mxf_metadata_sequence_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x0F, 0x00 };
-static const UID mxf_metadata_generic_sound_descriptor_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x42, 0x00 };
-static const UID mxf_metadata_cdci_descriptor_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x28, 0x00 };
-static const UID mxf_metadata_mpegvideo_descriptor_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x51, 0x00 };
-static const UID mxf_metadata_wave_descriptor_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x48, 0x00 };
-static const UID mxf_metadata_track_key = { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x53, 0x01, 0x01, 0x0d, 0x01, 0x01, 0x01, 0x01, 0x01, 0x3b, 0x00 };
+enum MXFWrappingScheme {
+ Frame,
+ Clip,
+};
+
+typedef struct MXFCodecUL {
+ UID uid;
+ enum CodecID id;
+ enum MXFWrappingScheme wrapping;
+} MXFCodecUL;
+
+typedef struct MXFDataDefinitionUL {
+ UID uid;
+ enum CodecType type;
+} MXFDataDefinitionUL;
+
+typedef struct MXFMetadataReadTableEntry {
+ const UID key;
+ int (*read)(MXFContext *mxf, KLVPacket *klv);
+} 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 };
+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 };
#define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
-#define PRINT_KEY(x) \
-do { \
- int iterpk; \
- for (iterpk = 0; iterpk < 16; iterpk++) { \
- av_log(NULL, AV_LOG_DEBUG, "%02X ", x[iterpk]); \
- } \
- av_log(NULL, AV_LOG_DEBUG, "\n"); \
-} while (0); \
+#define PRINT_KEY(s, x) dprintf("%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)
{
klv->offset = url_ftell(pb);
get_buffer(pb, klv->key, 16);
klv->length = klv_decode_ber_length(pb);
- if (klv->length == -1)
- return -1;
- else
- return 0;
+ return klv->length == -1 ? -1 : 0;
}
static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
{
- int id = BE_32(klv->key + 12); /* SMPTE 379M 7.3 */
int i;
for (i = 0; i < s->nb_streams; i++) {
- if (s->streams[i]->id == id)
+ 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 -1;
+ /* 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];
+ uint8_t *buf_ptr, *end_ptr, *data_ptr;
+
+ 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; buf_ptr += 4) {
+ if (st->codec->bits_per_sample == 24) {
+ data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
+ data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
+ data_ptr[2] = (buf_ptr[0] >> 4) | ((buf_ptr[1] & 0x0f) << 4);
+ data_ptr += 3;
+ } else {
+ data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
+ data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
+ data_ptr += 2;
+ }
+ }
+ pkt->size = data_ptr - pkt->data;
+ 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)
+ if (klv_read_packet(&klv, &s->pb) < 0) {
+ av_log(s, AV_LOG_ERROR, "error reading KLV packet\n");
return -1;
+ }
+#ifdef DEBUG
+ PRINT_KEY("read packet", klv.key);
+#endif
if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
- av_get_packet(&s->pb, pkt, klv.length);
- pkt->stream_index = mxf_get_stream_index(s, &klv);
- if (pkt->stream_index == -1)
+ int index = mxf_get_stream_index(s, &klv);
+ if (index < 0) {
+ av_log(s, AV_LOG_ERROR, "error getting stream index\n");
+ url_fskip(&s->pb, klv.length);
return -1;
+ }
+ /* 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;
return 0;
} else
url_fskip(&s->pb, klv.length);
return AVERROR_IO;
}
-static int mxf_read_metadata_track(MXFContext *mxf, KLVPacket *klv)
+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));
+ mxf->metadata_sets[mxf->metadata_sets_count] = metadata_set;
+ mxf->metadata_sets_count++;
+ return 0;
+}
+
+static int mxf_read_metadata_preface(MXFContext *mxf, KLVPacket *klv)
{
ByteIOContext *pb = &mxf->fc->pb;
- AVRational time_base = (AVRational){0, 0};
- uint8_t sequence_uid[16];
- uint8_t track_uid[16];
- int track_number = 0;
- int track_id = 0;
int bytes_read = 0;
- int i;
while (bytes_read < klv->length) {
int tag = get_be16(pb);
int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
switch (tag) {
+ case 0x3B03:
+ get_buffer(pb, mxf->content_storage_uid, 16);
+ break;
+ case 0x3B09:
+ get_buffer(pb, mxf->operational_pattern_ul, 16);
+ break;
+ case 0x3B0A:
+ mxf->essence_containers_uls_count = get_be32(pb);
+ if (mxf->essence_containers_uls_count >= UINT_MAX / sizeof(UID))
+ return -1;
+ mxf->essence_containers_uls = av_malloc(mxf->essence_containers_uls_count * sizeof(UID));
+ url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
+ get_buffer(pb, (uint8_t *)mxf->essence_containers_uls, mxf->essence_containers_uls_count * sizeof(UID));
+ break;
+ default:
+ url_fskip(pb, size);
+ }
+ bytes_read += size + 4;
+ }
+ return 0;
+}
+
+static int mxf_read_metadata_content_storage(MXFContext *mxf, KLVPacket *klv)
+{
+ ByteIOContext *pb = &mxf->fc->pb;
+ int bytes_read = 0;
+
+ while (bytes_read < klv->length) {
+ int tag = get_be16(pb);
+ int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
+
+ dprintf("tag 0x%04X, size %d\n", tag, size);
+ 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));
+ 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;
+ case 0x1902:
+ mxf->essence_container_data_sets_count = get_be32(pb);
+ if (mxf->essence_container_data_sets_count >= UINT_MAX / sizeof(UID))
+ return -1;
+ mxf->essence_container_data_sets_refs = av_malloc(mxf->essence_container_data_sets_count * sizeof(UID));
+ url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
+ get_buffer(pb, (uint8_t *)mxf->essence_container_data_sets_refs, mxf->essence_container_data_sets_count * sizeof(UID));
+ break;
+ default:
+ url_fskip(pb, size);
+ }
+ bytes_read += size + 4;
+ }
+ return 0;
+}
+
+static int mxf_read_metadata_source_clip(MXFContext *mxf, KLVPacket *klv)
+{
+ ByteIOContext *pb = &mxf->fc->pb;
+ MXFStructuralComponent *source_clip = av_mallocz(sizeof(*source_clip));
+ int bytes_read = 0;
+
+ while (bytes_read < klv->length) {
+ int tag = get_be16(pb);
+ int size = get_be16(pb); /* SMPTE 336M Table 8 KLV specified length, 0x53 */
+
+ bytes_read += size + 4;
+ dprintf("tag 0x%04X, size %d\n", tag, size);
+ 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;
+ }
+ switch (tag) {
+ case 0x3C0A:
+ get_buffer(pb, source_clip->uid, 16);
+ break;
+ 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;
+ default:
+ url_fskip(pb, size);
+ }
+ }
+ source_clip->type = SourceClip;
+ return mxf_add_metadata_set(mxf, source_clip);
+}
+
+static int mxf_read_metadata_material_package(MXFContext *mxf, KLVPacket *klv)
+{
+ ByteIOContext *pb = &mxf->fc->pb;
+ MXFPackage *package = av_mallocz(sizeof(*package));
+ int bytes_read = 0;
+
+ while (bytes_read < klv->length) {
+ int tag = get_be16(pb);
+ int size = get_be16(pb); /* KLV specified by 0x53 */
+
+ switch (tag) {
+ case 0x3C0A:
+ get_buffer(pb, package->uid, 16);
+ break;
+ 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));
+ 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;
+ default:
+ url_fskip(pb, size);
+ }
+ bytes_read += size + 4;
+ }
+ package->type = MaterialPackage;
+ return mxf_add_metadata_set(mxf, package);
+}
+
+static int mxf_read_metadata_track(MXFContext *mxf, KLVPacket *klv)
+{
+ ByteIOContext *pb = &mxf->fc->pb;
+ MXFTrack *track = av_mallocz(sizeof(*track));
+ int bytes_read = 0;
+
+ while (bytes_read < klv->length) {
+ int tag = get_be16(pb);
+ int size = get_be16(pb); /* KLV specified by 0x53 */
+
+ dprintf("tag 0x%04X, size %d\n", tag, size);
+ switch (tag) {
+ case 0x3C0A:
+ get_buffer(pb, track->uid, 16);
+ break;
case 0x4801:
- track_id = get_be32(pb);
+ track->track_id = get_be32(pb);
break;
case 0x4804:
- track_number = get_be32(pb);
+ get_buffer(pb, track->track_number, 4);
break;
case 0x4B01:
- time_base.den = get_be32(pb);
- time_base.num = get_be32(pb);
+ track->edit_rate.den = get_be32(pb);
+ track->edit_rate.num = get_be32(pb);
break;
case 0x4803:
- get_buffer(pb, sequence_uid, 16);
- break;
- case 0x3C0A:
- get_buffer(pb, track_uid, 16);
+ get_buffer(pb, track->sequence_ref, 16);
break;
default:
url_fskip(pb, size);
}
bytes_read += size + 4;
}
- for (i = 0; i < mxf->tracks_count; i++)
- if (!memcmp(track_uid, mxf->tracks[i].track_uid, 16)) {
- mxf->tracks[i].track_id = track_id;
- mxf->tracks[i].track_number = track_number;
- mxf->tracks[i].stream->time_base = time_base;
- mxf->tracks[i].stream->id = track_number;
- memcpy(mxf->tracks[i].sequence_uid, sequence_uid, 16);
- }
- return bytes_read;
+ track->type = Track;
+ return mxf_add_metadata_set(mxf, track);
}
static int mxf_read_metadata_sequence(MXFContext *mxf, KLVPacket *klv)
{
ByteIOContext *pb = &mxf->fc->pb;
- uint8_t sequence_uid[16];
- uint8_t data_definition[16];
- uint64_t duration = AV_NOPTS_VALUE;
+ MXFSequence *sequence = av_mallocz(sizeof(*sequence));
int bytes_read = 0;
- int i;
while (bytes_read < klv->length) {
int tag = get_be16(pb);
int size = get_be16(pb); /* KLV specified by 0x53 */
+ dprintf("tag 0x%04X, size %d\n", tag, size);
switch (tag) {
case 0x3C0A:
- get_buffer(pb, sequence_uid, 16);
+ get_buffer(pb, sequence->uid, 16);
break;
case 0x0202:
- duration = get_be64(pb);
+ sequence->duration = get_be64(pb);
break;
case 0x0201:
- get_buffer(pb, data_definition, 16);
+ 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));
+ 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;
default:
url_fskip(pb, size);
}
bytes_read += size + 4;
}
-
- for (i = 0; i < mxf->tracks_count; i++)
- if (!memcmp(sequence_uid, mxf->tracks[i].sequence_uid, 16)) {
- mxf->tracks[i].stream->start_time = 0;
- mxf->tracks[i].stream->duration = duration;
- if (data_definition[11] == 0x02 && data_definition[12] == 0x01)
- mxf->tracks[i].stream->codec->codec_type = CODEC_TYPE_VIDEO;
- else if (data_definition[11] == 0x02 && data_definition[12] == 0x02)
- mxf->tracks[i].stream->codec->codec_type = CODEC_TYPE_AUDIO;
- else if (data_definition[11] == 0x01) /* SMPTE 12M Time Code track */
- mxf->tracks[i].stream->codec->codec_type = CODEC_TYPE_DATA;
- }
- return bytes_read;
+ sequence->type = Sequence;
+ return mxf_add_metadata_set(mxf, sequence);
}
static int mxf_read_metadata_source_package(MXFContext *mxf, KLVPacket *klv)
{
ByteIOContext *pb = &mxf->fc->pb;
- int tracks_count;
+ MXFPackage *package = av_mallocz(sizeof(*package));
int bytes_read = 0;
- int i;
while (bytes_read < klv->length) {
int tag = get_be16(pb);
int size = get_be16(pb); /* KLV specified by 0x53 */
+ dprintf("tag 0x%04X, size %d\n", tag, size);
switch (tag) {
+ case 0x3C0A:
+ get_buffer(pb, package->uid, 16);
+ break;
case 0x4403:
- tracks_count = get_be32(pb);
- if(tracks_count >= UINT_MAX / sizeof(*mxf->tracks) ||
- tracks_count >= UINT_MAX / sizeof(*mxf->descriptors))
+ package->tracks_count = get_be32(pb);
+ if (package->tracks_count >= UINT_MAX / sizeof(UID))
return -1;
- mxf->tracks_count += tracks_count; /* op2a contains multiple source packages */
- mxf->tracks = av_realloc(mxf->tracks, mxf->tracks_count * sizeof(*mxf->tracks));
- mxf->descriptors = av_realloc(mxf->descriptors, mxf->tracks_count * sizeof(*mxf->descriptors));
+ package->tracks_refs = av_malloc(package->tracks_count * sizeof(UID));
url_fskip(pb, 4); /* useless size of objects, always 16 according to specs */
- for (i = mxf->tracks_count - tracks_count; i < mxf->tracks_count; i++) {
- mxf->tracks[i].stream = av_new_stream(mxf->fc, 0);
- get_buffer(pb, mxf->tracks[i].track_uid, 16);
- }
+ 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;
default:
url_fskip(pb, size);
}
bytes_read += size + 4;
}
- return bytes_read;
+ package->type = SourcePackage;
+ return mxf_add_metadata_set(mxf, package);
}
-static int mxf_read_metadata_descriptor(MXFContext *mxf, KLVPacket *klv)
+static int mxf_read_metadata_multiple_descriptor(MXFContext *mxf, KLVPacket *klv)
{
ByteIOContext *pb = &mxf->fc->pb;
- MXFDescriptor *desc;
+ MXFDescriptor *descriptor = av_mallocz(sizeof(*descriptor));
int bytes_read = 0;
- if (mxf->descriptors_count == mxf->tracks_count)
- return -1;
- desc = &mxf->descriptors[mxf->descriptors_count++];
- desc->kind = klv->key[14];
- desc->linked_track_id = -1;
+ while (bytes_read < klv->length) {
+ int tag = get_be16(pb);
+ int size = get_be16(pb); /* KLV specified by 0x53 */
+
+ dprintf("tag 0x%04X, size %d\n", tag, size);
+ switch (tag) {
+ case 0x3C0A:
+ get_buffer(pb, descriptor->uid, 16);
+ break;
+ 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));
+ 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;
+ default:
+ url_fskip(pb, size);
+ }
+ bytes_read += size + 4;
+ }
+ descriptor->type = MultipleDescriptor;
+ return mxf_add_metadata_set(mxf, descriptor);
+}
+
+static void mxf_read_metadata_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor)
+{
+ int code;
+
+ do {
+ code = get_byte(pb);
+ dprintf("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_metadata_generic_descriptor(MXFContext *mxf, KLVPacket *klv)
+{
+ ByteIOContext *pb = &mxf->fc->pb;
+ MXFDescriptor *descriptor = av_mallocz(sizeof(*descriptor));
+ int bytes_read = 0;
while (bytes_read < klv->length) {
int tag = get_be16(pb);
int size = get_be16(pb); /* KLV specified by 0x53 */
+ dprintf("tag 0x%04X, size %d\n", tag, size);
switch (tag) {
+ case 0x3C0A:
+ get_buffer(pb, descriptor->uid, 16);
+ break;
case 0x3004:
- get_buffer(pb, desc->essence_container, 16);
+ get_buffer(pb, descriptor->essence_container_ul, 16);
break;
case 0x3006:
- desc->linked_track_id = get_be32(pb);
+ descriptor->linked_track_id = get_be32(pb);
break;
case 0x3201: /* PictureEssenceCoding */
- desc->codec_type = CODEC_TYPE_VIDEO;
- get_buffer(pb, desc->essence_compression, 16);
+ get_buffer(pb, descriptor->essence_codec_ul, 16);
break;
case 0x3203:
- desc->width = get_be32(pb);
+ descriptor->width = get_be32(pb);
break;
case 0x3202:
- desc->height = get_be32(pb);
+ descriptor->height = get_be32(pb);
break;
case 0x320E:
- desc->aspect_ratio.num = get_be32(pb);
- desc->aspect_ratio.den = get_be32(pb);
- break;
- case 0x3D0A:
- desc->block_align = get_be16(pb);
+ descriptor->aspect_ratio.num = get_be32(pb);
+ descriptor->aspect_ratio.den = get_be32(pb);
break;
case 0x3D03:
- desc->sample_rate.num = get_be32(pb);
- desc->sample_rate.den = get_be32(pb);
+ descriptor->sample_rate.num = get_be32(pb);
+ descriptor->sample_rate.den = get_be32(pb);
break;
case 0x3D06: /* SoundEssenceCompression */
- desc->codec_type = CODEC_TYPE_AUDIO;
- get_buffer(pb, desc->essence_compression, 16);
+ get_buffer(pb, descriptor->essence_codec_ul, 16);
break;
case 0x3D07:
- desc->channels = get_be32(pb);
+ descriptor->channels = get_be32(pb);
break;
case 0x3D01:
- desc->bits_per_sample = get_be32(pb);
+ descriptor->bits_per_sample = get_be32(pb);
+ break;
+ case 0x3401:
+ mxf_read_metadata_pixel_layout(pb, descriptor);
+ break;
+ case 0x8201: /* Private tag used by SONY C0023S01.mxf */
+ descriptor->extradata = av_malloc(size);
+ descriptor->extradata_size = size;
+ get_buffer(pb, descriptor->extradata, size);
break;
default:
url_fskip(pb, size);
}
bytes_read += size + 4;
}
- return bytes_read;
+ descriptor->type = Descriptor;
+ return mxf_add_metadata_set(mxf, descriptor);
}
/* SMPTE RP224 http://www.smpte-ra.org/mdd/index.html */
-static const CodecTag mxf_sound_essence_labels[] = {
- { CODEC_ID_PCM_S16LE, 0x01000000 },/* Uncompressed Sound Coding */
- { CODEC_ID_PCM_S16LE, 0x017F0000 },/* Uncompressed Sound Coding */
- { CODEC_ID_PCM_S16BE, 0x017E0000 },/* Uncompressed Sound Coding Big Endian*/
- { CODEC_ID_PCM_ALAW, 0x02030101 },
- { CODEC_ID_AC3, 0x02030201 },
- //{ CODEC_ID_MP1, 0x02030104 },
- { CODEC_ID_MP2, 0x02030105 },/* MP2 or MP3 */
- //{ CODEC_ID_MP2, 0x02030106 },/* MPEG-2 Layer 1 */
- //{ CODEC_ID_???, 0x0203010C },/* Dolby E */
- //{ CODEC_ID_???, 0x02030301 },/* MPEG-2 AAC */
- { 0, 0 },
+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 CodecTag mxf_picture_essence_labels[] = {
- { CODEC_ID_RAWVIDEO, 0x0100 },
- { CODEC_ID_MPEG2VIDEO, 0x0201 },
- { CODEC_ID_DVVIDEO, 0x0202 },
- //{ CODEC_ID_???, 0x0207 },/* D-11 HDCAM */
- { 0, 0 },
+static const MXFCodecUL mxf_codec_uls[] = {
+ /* PictureEssenceCoding */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML I-Frame */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL I-Frame */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@HL Long GoP */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@ML Long GoP */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* 422P@ML Long GoP */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MP@HL Long GoP */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x03 }, CODEC_ID_MPEG4, Frame }, /* XDCAM proxy_pal030926.mxf */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x04 }, CODEC_ID_MPEG4, Frame }, /* XDCAM Proxy C0023S01.mxf */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 30Mbps PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* D-10 50Mbps PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO50 PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DVCPRO25 PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, CODEC_ID_DVVIDEO, Frame }, /* DV25 IEC PAL */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_JPEG2000, Frame }, /* JPEG2000 Codestream */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_RAWVIDEO, Frame }, /* Uncompressed */
+ /* SoundEssenceCompression */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* Uncompressed */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE, Frame },
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x02,0x02,0x01,0x7E,0x00,0x00,0x00 }, CODEC_ID_PCM_S16BE, Frame }, /* From Omneon MXF file */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame },
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x04,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_PCM_ALAW, Frame }, /* XDCAM Proxy C0023S01.mxf */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x01,0x00 }, CODEC_ID_AC3, Frame },
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x05,0x00 }, CODEC_ID_MP2, Frame }, /* MP2 or MP3 */
+ //{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x1C,0x00 }, CODEC_ID_DOLBY_E, Frame }, /* Dolby-E */
+ { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
};
-static const CodecTag mxf_container_picture_labels[] = {
- { CODEC_ID_MPEG2VIDEO, 0x0201 }, /* D-10 Mapping */
- { CODEC_ID_DVVIDEO, 0x0202 }, /* DV Mapping */
- //{ CODEC_ID_???, 0x0203 }, /* HDCAM D-11 Mapping */
- { CODEC_ID_MPEG2VIDEO, 0x0204 }, /* MPEG ES Mapping */
+static const MXFCodecUL mxf_picture_essence_container_uls[] = {
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, CODEC_ID_MPEG2VIDEO, Frame }, /* MPEG-ES Frame wrapped */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xe0,0x02 }, CODEC_ID_MPEG2VIDEO, Clip }, /* MPEG-ES Clip wrapped, 0xe0 MPV stream id */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x04,0x61,0x07 }, CODEC_ID_MPEG2VIDEO, Clip }, /* MPEG-ES Custom wrapped, 0x61 ??? stream id */
+ { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
};
-static const CodecTag mxf_container_sound_labels[] = {
- //{ CODEC_ID_PCM_S16??, 0x0201 }, /* D-10 Mapping */
- { CODEC_ID_MP2, 0x0204 }, /* MPEG ES Mapping */
- { CODEC_ID_PCM_S16LE, 0x0206 }, /* AES BWF Mapping */
- { CODEC_ID_PCM_ALAW, 0x020A },
- { 0, 0 },
+static const MXFCodecUL mxf_sound_essence_container_uls[] = {
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* BWF Frame wrapped */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 }, CODEC_ID_PCM_S16LE, Frame }, /* AES Frame wrapped */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0x40 ??? stream id */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0xc0 MPA stream id */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x02 }, CODEC_ID_MP2, Clip }, /* MPEG-ES Clip wrapped, 0xc0 MPA stream id */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 50Mbps PAL Extended Template */
+ { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
};
-static void mxf_resolve_track_descriptor(MXFContext *mxf)
+static const MXFCodecUL *mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid)
+{
+ while (uls->id != CODEC_ID_NONE) {
+ if(!memcmp(uls->uid, *uid, 16))
+ break;
+ uls++;
+ }
+ return uls;
+}
+
+static enum CodecType mxf_get_codec_type(const MXFDataDefinitionUL *uls, UID *uid)
+{
+ while (uls->type != CODEC_TYPE_DATA) {
+ if(!memcmp(uls->uid, *uid, 16))
+ break;
+ uls++;
+ }
+ return uls->type;
+}
+
+static void *mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref)
{
- uint32_t container_label;
- uint32_t essence_label;
- int i, j;
-
- for (i = 0; i < mxf->descriptors_count; i++) {
- for (j = 0; j < mxf->tracks_count; j++) {
- AVStream *st = mxf->tracks[j].stream;
- MXFDescriptor *desc = &mxf->descriptors[i];
-
- if ((desc->linked_track_id == -1 && st->codec->codec_type == desc->codec_type)
- || desc->linked_track_id == mxf->tracks[j].track_id) {
- if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- st->codec->channels = desc->channels;
- st->codec->bits_per_sample = desc->bits_per_sample;
- st->codec->block_align = desc->block_align;
- st->codec->sample_rate = desc->sample_rate.num / desc->sample_rate.den;
-
- container_label = BE_16(desc->essence_container + 12);
- essence_label = BE_32(desc->essence_compression + 11);
- st->codec->codec_id = codec_get_id(mxf_sound_essence_labels, essence_label);
- if (st->codec->codec_id == CODEC_ID_PCM_S16LE) {
- if (desc->bits_per_sample == 24)
- st->codec->codec_id = CODEC_ID_PCM_S24LE;
- else if (desc->bits_per_sample == 32)
- st->codec->codec_id = CODEC_ID_PCM_S32LE;
+ 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)) {
+ return mxf->metadata_sets[i];
+ }
+ }
+ return NULL;
+}
+
+static int mxf_parse_structural_metadata(MXFContext *mxf)
+{
+ MXFPackage *material_package = NULL;
+ MXFPackage *source_package = NULL;
+ MXFPackage *temp_package = NULL;
+ int i, j, k;
+
+ dprintf("metadata sets count %d\n", mxf->metadata_sets_count);
+ /* TODO: handle multiple material packages (OP3x) */
+ for (i = 0; i < mxf->packages_count; i++) {
+ if (!(temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[i]))) {
+ av_log(mxf->fc, AV_LOG_ERROR, "could not resolve package strong ref\n");
+ return -1;
+ }
+ if (temp_package->type == MaterialPackage) {
+ material_package = temp_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++) {
+ MXFTrack *material_track = NULL;
+ MXFTrack *source_track = NULL;
+ MXFTrack *temp_track = NULL;
+ MXFDescriptor *descriptor = NULL;
+ MXFStructuralComponent *component = 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]))) {
+ 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))) {
+ 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]);
+ if (!component || component->type != SourceClip)
+ continue;
+
+ for (k = 0; k < mxf->packages_count; k++) {
+ if (!(temp_package = mxf_resolve_strong_ref(mxf, &mxf->packages_refs[k]))) {
+ av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track strong ref\n");
+ return -1;
+ }
+ 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]))) {
+ 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);
+ 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))) {
+ av_log(mxf->fc, AV_LOG_ERROR, "could not resolve source track sequence strong ref\n");
+ return -1;
+ }
+
+#ifdef DEBUG
+ PRINT_KEY("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);
+ 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]);
+
+ if (!sub_descriptor) {
+ av_log(mxf->fc, AV_LOG_ERROR, "could not resolve sub descriptor strong ref\n");
+ continue;
}
- if (st->codec->codec_id == CODEC_ID_PCM_S16BE) {
- if (desc->bits_per_sample == 24)
- st->codec->codec_id = CODEC_ID_PCM_S24BE;
- else if (desc->bits_per_sample == 32)
- st->codec->codec_id = CODEC_ID_PCM_S32BE;
+ if (sub_descriptor->linked_track_id == source_track->track_id) {
+ descriptor = sub_descriptor;
+ break;
}
- if (!st->codec->codec_id)
- st->codec->codec_id = codec_get_id(mxf_container_sound_labels, container_label);
-
- } else if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- st->codec->width = desc->width;
- st->codec->height = desc->height;
-
- container_label = BE_16(desc->essence_container + 12);
- essence_label = BE_16(desc->essence_compression + 11);
- st->codec->codec_id = codec_get_id(mxf_picture_essence_labels, essence_label);
- if (!st->codec->codec_id)
- st->codec->codec_id = codec_get_id(mxf_container_picture_labels, container_label);
}
+ } else
+ 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("essence codec ul", descriptor->essence_codec_ul);
+ PRINT_KEY("essence container ul", descriptor->essence_container_ul);
+#endif
+ /* 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, &descriptor->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 = 2; /* only parse headers */
+ } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
+ container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, &descriptor->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;
+ if (descriptor->essence_container_ul[13] == 0x01) /* D-10 Mapping */
+ st->codec->channels = 8; /* force channels to 8 */
+ } else if (st->codec->codec_id == CODEC_ID_MP2) {
+ st->need_parsing = 1;
}
}
+ if (container_ul && container_ul->wrapping == Clip) {
+ dprintf("stream %d: clip wrapped essence\n", st->index);
+ st->need_parsing = 1;
+ }
+ }
+ return 0;
+}
+
+static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x2F,0x00 }, mxf_read_metadata_preface },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 }, mxf_read_metadata_content_storage },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 }, mxf_read_metadata_source_package },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 }, mxf_read_metadata_material_package },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 }, mxf_read_metadata_sequence },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 }, mxf_read_metadata_source_clip },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 }, mxf_read_metadata_multiple_descriptor },
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }, mxf_read_metadata_generic_descriptor }, /* Generic Sound */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }, mxf_read_metadata_generic_descriptor }, /* CDCI */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 }, mxf_read_metadata_generic_descriptor }, /* RGBA */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_read_metadata_generic_descriptor }, /* MPEG 2 Video */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_read_metadata_generic_descriptor }, /* Wave */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }, mxf_read_metadata_generic_descriptor }, /* AES3 */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 }, mxf_read_metadata_track }, /* Static Track */
+ { { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 }, mxf_read_metadata_track }, /* Generic Track */
+ { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL },
+};
+
+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 mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
MXFContext *mxf = s->priv_data;
KLVPacket klv;
- int ret = 0;
+ 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)) {
- if (klv_read_packet(&klv, &s->pb) < 0)
+ const MXFMetadataReadTableEntry *function;
+
+ if (klv_read_packet(&klv, &s->pb) < 0) {
+ av_log(s, AV_LOG_ERROR, "error reading KLV packet\n");
return -1;
- if (IS_KLV_KEY(klv.key, mxf_metadata_track_key))
- ret = mxf_read_metadata_track(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_metadata_source_package_key))
- ret = mxf_read_metadata_source_package(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_metadata_sequence_key))
- ret = mxf_read_metadata_sequence(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_metadata_wave_descriptor_key))
- ret = mxf_read_metadata_descriptor(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_metadata_mpegvideo_descriptor_key))
- ret = mxf_read_metadata_descriptor(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_metadata_cdci_descriptor_key))
- ret = mxf_read_metadata_descriptor(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_metadata_generic_sound_descriptor_key))
- ret = mxf_read_metadata_descriptor(mxf, &klv);
- else if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
+ }
+#ifdef DEBUG
+ PRINT_KEY("read header", klv.key);
+#endif
+ if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
/* FIXME avoid seek */
url_fseek(&s->pb, klv.offset, SEEK_SET);
break;
- } else
+ }
+
+ for (function = mxf_metadata_read_table; function->read; function++) {
+ if (IS_KLV_KEY(klv.key, function->key)) {
+ if (function->read(mxf, &klv) < 0) {
+ av_log(s, AV_LOG_ERROR, "error reading header metadata\n");
+ return -1;
+ }
+ break;
+ }
+ }
+ if (!function->read)
url_fskip(&s->pb, klv.length);
- if (ret < 0)
- return ret;
}
- mxf_resolve_track_descriptor(mxf);
- return 0;
+ return mxf_parse_structural_metadata(mxf);
}
static int mxf_read_close(AVFormatContext *s)
{
MXFContext *mxf = s->priv_data;
+ int i;
- av_freep(&mxf->tracks);
- av_freep(&mxf->descriptors);
+ av_freep(&mxf->packages_refs);
+ av_freep(&mxf->essence_container_data_sets_refs);
+ av_freep(&mxf->essence_containers_uls);
+ for (i = 0; i < mxf->metadata_sets_count; i++) {
+ switch (mxf->metadata_sets[i]->type) {
+ case MultipleDescriptor:
+ av_freep(&((MXFDescriptor *)mxf->metadata_sets[i])->sub_descriptors_refs);
+ break;
+ case Sequence:
+ av_freep(&((MXFSequence *)mxf->metadata_sets[i])->structural_components_refs);
+ break;
+ case SourcePackage:
+ case MaterialPackage:
+ av_freep(&((MXFPackage *)mxf->metadata_sets[i])->tracks_refs);
+ break;
+ default:
+ break;
+ }
+ av_freep(&mxf->metadata_sets[i]);
+ }
+ av_freep(&mxf->metadata_sets);
return 0;
}
static int mxf_probe(AVProbeData *p) {
- /* KLV packet describing MXF header partition pack */
+ 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;
- if (IS_KLV_KEY(p->buf, mxf_header_partition_pack_key))
- return AVPROBE_SCORE_MAX;
- else
- 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 binary 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);
+ if (!mxf_read_sync(&s->pb, mxf_essence_element_key, 12))
+ return -1;
+
+ /* found KLV key */
+ url_fseek(&s->pb, -12, SEEK_CUR);
+ av_update_cur_dts(s, st, sample_time);
+ return 0;
+}
AVInputFormat mxf_demuxer = {
"mxf",
mxf_read_header,
mxf_read_packet,
mxf_read_close,
- NULL,
+ mxf_read_seek,
};
projects / ffmpeg / blobdiff