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Originally committed as revision 7508 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Baptiste Coudurier 18 years ago
parent 33bddcdc13
commit 55de95b9c7
1 changed files with 169 additions and 169 deletions
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  1. 338
      libavformat/mxf.c

338
libavformat/mxf.c
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@ -214,7 +214,7 @@ static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
for (i = 0; i < s->nb_streams; i++) {
MXFTrack *track = s->streams[i]->priv_data;
/* SMPTE 379M 7.3 */
/* SMPTE 379M 7.3 */
if (!memcmp(klv->key + sizeof(mxf_essence_element_key), track->track_number, sizeof(track->track_number)))
return i;
}
@ -302,161 +302,161 @@ static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
static int mxf_read_metadata_preface(MXFContext *mxf, ByteIOContext *pb, int tag)
{
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;
}
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;
}
return 0;
}
static int mxf_read_metadata_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));
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;
}
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;
}
return 0;
}
static int mxf_read_metadata_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;
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_metadata_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));
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;
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));
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_metadata_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;
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_metadata_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));
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;
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));
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_metadata_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));
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;
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));
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 int mxf_read_metadata_multiple_descriptor(MXFDescriptor *descriptor, ByteIOContext *pb, int tag)
{
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));
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;
}
return 0;
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));
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;
}
return 0;
}
static void mxf_read_metadata_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor)
@ -484,49 +484,49 @@ static void mxf_read_metadata_pixel_layout(ByteIOContext *pb, MXFDescriptor *des
static int mxf_read_metadata_generic_descriptor(MXFDescriptor *descriptor, ByteIOContext *pb, int tag, int size)
{
switch(tag) {
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_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;
}
return 0;
switch(tag) {
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_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;
}
return 0;
}
/* SMPTE RP224 http://www.smpte-ra.org/mdd/index.html */

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