* 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
+ * SMPTE 2067-21 Interoperable Master Format — Application #2E
*
* Principle
* Search for Track numbers which will identify essence element KLV packets.
#include "libavutil/aes.h"
#include "libavutil/avassert.h"
+#include "libavutil/mastering_display_metadata.h"
#include "libavutil/mathematics.h"
#include "libavcodec/bytestream.h"
#include "libavutil/intreadwrite.h"
int bits_per_sample;
int64_t duration; /* ContainerDuration optional property */
unsigned int component_depth;
+ unsigned int black_ref_level;
+ unsigned int white_ref_level;
+ unsigned int color_range;
unsigned int horiz_subsampling;
unsigned int vert_subsampling;
UID *sub_descriptors_refs;
uint8_t *extradata;
int extradata_size;
enum AVPixelFormat pix_fmt;
+ UID color_primaries_ul;
+ UID color_trc_ul;
+ UID color_space_ul;
+ AVMasteringDisplayMetadata *mastering;
+ AVContentLightMetadata *coll;
+ size_t coll_size;
} MXFDescriptor;
typedef struct MXFIndexTableSegment {
static const uint8_t mxf_system_item_key_cp[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x03,0x01,0x04 };
static const uint8_t mxf_system_item_key_gc[] = { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x03,0x01,0x14 };
static const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 };
+static const uint8_t mxf_apple_coll_prefix[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x0e,0x0e,0x20,0x04,0x01,0x05,0x03,0x01 };
/* 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_jp2k_rsiz[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x01,0x00 };
static const uint8_t mxf_indirect_value_utf16le[] = { 0x4c,0x00,0x02,0x10,0x01,0x00,0x00,0x00,0x00,0x06,0x0e,0x2b,0x34,0x01,0x04,0x01,0x01 };
static const uint8_t mxf_indirect_value_utf16be[] = { 0x42,0x01,0x10,0x02,0x00,0x00,0x00,0x00,0x00,0x06,0x0e,0x2b,0x34,0x01,0x04,0x01,0x01 };
+static const uint8_t mxf_apple_coll_max_cll[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x0e,0x0e,0x20,0x04,0x01,0x05,0x03,0x01,0x01 };
+static const uint8_t mxf_apple_coll_max_fall[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x0e,0x0e,0x20,0x04,0x01,0x05,0x03,0x01,0x02 };
#define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
switch ((*ctx)->type) {
case Descriptor:
av_freep(&((MXFDescriptor *)*ctx)->extradata);
+ av_freep(&((MXFDescriptor *)*ctx)->mastering);
+ av_freep(&((MXFDescriptor *)*ctx)->coll);
break;
case MultipleDescriptor:
av_freep(&((MXFDescriptor *)*ctx)->sub_descriptors_refs);
static int mxf_read_strong_ref_array(AVIOContext *pb, UID **refs, int *count)
{
*count = avio_rb32(pb);
+ av_free(*refs);
*refs = av_calloc(*count, sizeof(UID));
if (!*refs) {
*count = 0;
case 0x1901:
if (mxf->packages_refs)
av_log(mxf->fc, AV_LOG_VERBOSE, "Multiple packages_refs\n");
- av_free(mxf->packages_refs);
return mxf_read_strong_ref_array(pb, &mxf->packages_refs, &mxf->packages_count);
case 0x1902:
- av_free(mxf->essence_container_data_refs);
return mxf_read_strong_ref_array(pb, &mxf->essence_container_data_refs, &mxf->essence_container_data_count);
}
return 0;
descriptor->aspect_ratio.num = avio_rb32(pb);
descriptor->aspect_ratio.den = avio_rb32(pb);
break;
+ case 0x3210:
+ avio_read(pb, descriptor->color_trc_ul, 16);
+ break;
case 0x3212:
descriptor->field_dominance = avio_r8(pb);
break;
+ case 0x3219:
+ avio_read(pb, descriptor->color_primaries_ul, 16);
+ break;
+ case 0x321A:
+ avio_read(pb, descriptor->color_space_ul, 16);
+ break;
case 0x3301:
descriptor->component_depth = avio_rb32(pb);
break;
case 0x3302:
descriptor->horiz_subsampling = avio_rb32(pb);
break;
+ case 0x3304:
+ descriptor->black_ref_level = avio_rb32(pb);
+ break;
+ case 0x3305:
+ descriptor->white_ref_level = avio_rb32(pb);
+ break;
+ case 0x3306:
+ descriptor->color_range = avio_rb32(pb);
+ break;
case 0x3308:
descriptor->vert_subsampling = avio_rb32(pb);
break;
rsiz == FF_PROFILE_JPEG2000_DCINEMA_4K)
descriptor->pix_fmt = AV_PIX_FMT_XYZ12;
}
+ if (IS_KLV_KEY(uid, ff_mxf_mastering_display_prefix)) {
+ if (!descriptor->mastering) {
+ descriptor->mastering = av_mastering_display_metadata_alloc();
+ if (!descriptor->mastering)
+ return AVERROR(ENOMEM);
+ }
+ if (IS_KLV_KEY(uid, ff_mxf_mastering_display_local_tags[0].uid)) {
+ for (int i = 0; i < 3; i++) {
+ /* Order: large x, large y, other (i.e. RGB) */
+ descriptor->mastering->display_primaries[i][0] = av_make_q(avio_rb16(pb), FF_MXF_MASTERING_CHROMA_DEN);
+ descriptor->mastering->display_primaries[i][1] = av_make_q(avio_rb16(pb), FF_MXF_MASTERING_CHROMA_DEN);
+ }
+ /* Check we have seen mxf_mastering_display_white_point_chromaticity */
+ if (descriptor->mastering->white_point[0].den != 0)
+ descriptor->mastering->has_primaries = 1;
+ }
+ if (IS_KLV_KEY(uid, ff_mxf_mastering_display_local_tags[1].uid)) {
+ descriptor->mastering->white_point[0] = av_make_q(avio_rb16(pb), FF_MXF_MASTERING_CHROMA_DEN);
+ descriptor->mastering->white_point[1] = av_make_q(avio_rb16(pb), FF_MXF_MASTERING_CHROMA_DEN);
+ /* Check we have seen mxf_mastering_display_primaries */
+ if (descriptor->mastering->display_primaries[0][0].den != 0)
+ descriptor->mastering->has_primaries = 1;
+ }
+ if (IS_KLV_KEY(uid, ff_mxf_mastering_display_local_tags[2].uid)) {
+ descriptor->mastering->max_luminance = av_make_q(avio_rb32(pb), FF_MXF_MASTERING_LUMA_DEN);
+ /* Check we have seen mxf_mastering_display_minimum_luminance */
+ if (descriptor->mastering->min_luminance.den != 0)
+ descriptor->mastering->has_luminance = 1;
+ }
+ if (IS_KLV_KEY(uid, ff_mxf_mastering_display_local_tags[3].uid)) {
+ descriptor->mastering->min_luminance = av_make_q(avio_rb32(pb), FF_MXF_MASTERING_LUMA_DEN);
+ /* Check we have seen mxf_mastering_display_maximum_luminance */
+ if (descriptor->mastering->max_luminance.den != 0)
+ descriptor->mastering->has_luminance = 1;
+ }
+ }
+ if (IS_KLV_KEY(uid, mxf_apple_coll_prefix)) {
+ if (!descriptor->coll) {
+ descriptor->coll = av_content_light_metadata_alloc(&descriptor->coll_size);
+ if (!descriptor->coll)
+ return AVERROR(ENOMEM);
+ }
+ if (IS_KLV_KEY(uid, mxf_apple_coll_max_cll)) {
+ descriptor->coll->MaxCLL = avio_rb16(pb);
+ }
+ if (IS_KLV_KEY(uid, mxf_apple_coll_max_fall)) {
+ descriptor->coll->MaxFALL = avio_rb16(pb);
+ }
+ }
break;
}
return 0;
return 0;
}
+static enum AVColorRange mxf_get_color_range(MXFContext *mxf, MXFDescriptor *descriptor)
+{
+ if (descriptor->black_ref_level || descriptor->white_ref_level || descriptor->color_range) {
+ /* CDCI range metadata */
+ if (!descriptor->component_depth)
+ return AVCOL_RANGE_UNSPECIFIED;
+ if (descriptor->black_ref_level == 0 &&
+ descriptor->white_ref_level == ((1<<descriptor->component_depth) - 1) &&
+ (descriptor->color_range == (1<<descriptor->component_depth) ||
+ descriptor->color_range == ((1<<descriptor->component_depth) - 1)))
+ return AVCOL_RANGE_JPEG;
+ if (descriptor->component_depth >= 8 &&
+ descriptor->black_ref_level == (1 <<(descriptor->component_depth - 4)) &&
+ descriptor->white_ref_level == (235<<(descriptor->component_depth - 8)) &&
+ descriptor->color_range == ((14<<(descriptor->component_depth - 4)) + 1))
+ return AVCOL_RANGE_MPEG;
+ avpriv_request_sample(mxf->fc, "Unrecognized CDCI color range (color diff range %d, b %d, w %d, depth %d)",
+ descriptor->color_range, descriptor->black_ref_level,
+ descriptor->white_ref_level, descriptor->component_depth);
+ }
+
+ return AVCOL_RANGE_UNSPECIFIED;
+}
+
static int mxf_parse_structural_metadata(MXFContext *mxf)
{
MXFPackage *material_package = NULL;
av_dict_set_int(&st->metadata, "source_track_origin", source_track->sequence->origin, 0);
}
if (descriptor->aspect_ratio.num && descriptor->aspect_ratio.den)
- st->display_aspect_ratio = descriptor->aspect_ratio;
+ st->internal->display_aspect_ratio = descriptor->aspect_ratio;
+ st->codecpar->color_range = mxf_get_color_range(mxf, descriptor);
+ st->codecpar->color_primaries = mxf_get_codec_ul(ff_mxf_color_primaries_uls, &descriptor->color_primaries_ul)->id;
+ st->codecpar->color_trc = mxf_get_codec_ul(ff_mxf_color_trc_uls, &descriptor->color_trc_ul)->id;
+ st->codecpar->color_space = mxf_get_codec_ul(ff_mxf_color_space_uls, &descriptor->color_space_ul)->id;
+ if (descriptor->mastering) {
+ ret = av_stream_add_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
+ (uint8_t *)descriptor->mastering,
+ sizeof(*descriptor->mastering));
+ if (ret < 0)
+ goto fail_and_free;
+ descriptor->mastering = NULL;
+ }
+ if (descriptor->coll) {
+ ret = av_stream_add_side_data(st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
+ (uint8_t *)descriptor->coll,
+ descriptor->coll_size);
+ if (ret < 0)
+ goto fail_and_free;
+ descriptor->coll = NULL;
+ }
} else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
container_ul = mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul);
/* Only overwrite existing codec ID if it is unset or A-law, which is the default according to SMPTE RP 224. */
static int mxf_metadataset_init(MXFMetadataSet *ctx, enum MXFMetadataSetType type)
{
+ ctx->type = type;
switch (type){
case MultipleDescriptor:
case Descriptor:
if (!ctx)
return AVERROR(ENOMEM);
- mxf_metadataset_init(ctx, type);
+ if (ctx_size)
+ mxf_metadataset_init(ctx, type);
while (avio_tell(pb) + 4 < klv_end && !avio_feof(pb)) {
int ret;
int tag = avio_rb16(pb);
* it extending past the end of the KLV though (zzuf5.mxf). */
if (avio_tell(pb) > klv_end) {
if (ctx_size) {
- ctx->type = type;
mxf_free_metadataset(&ctx, 1);
}
} else if (avio_tell(pb) <= next) /* only seek forward, else this can loop for a long time */
avio_seek(pb, next, SEEK_SET);
}
- if (ctx_size) ctx->type = type;
return ctx_size ? mxf_add_metadata_set(mxf, &ctx) : 0;
}
AV_RN32(bufp+ 4) == AV_RN32(mxf_header_partition_pack_key+ 4) &&
AV_RN32(bufp+ 8) == AV_RN32(mxf_header_partition_pack_key+ 8) &&
AV_RN16(bufp+12) == AV_RN16(mxf_header_partition_pack_key+12))
- return AVPROBE_SCORE_MAX;
+ return bufp == p->buf ? AVPROBE_SCORE_MAX : AVPROBE_SCORE_MAX - 1;
bufp ++;
} else
bufp += 10;
projects / ffmpeg / blobdiff