@@ -2,6 +2,11 @@ The last version increases of all libraries were on 2024-03-07
API changes, most recent first:
+2024-03-xx - xxxxxxxxxx - lavu 59.8.100 - dovi_meta.h
+ Add AVDOVIMetadata.ext_block_{offset,size}, AVDOVIMetadata.num_ext_blocks,
+ AVDOVIDmData and AVDOVIDmLevel{1..6,8..11,254..255}, av_dovi_get_ext()
+ and av_dovi_find_level().
+
2024-03-xx - xxxxxxxxxx - lavu 59.7.100 - dovi_meta.h
Add AVDOVIDataMapping.nlq_pivots.
@@ -18,6 +18,8 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <string.h>
+
#include "dovi_meta.h"
#include "mem.h"
@@ -39,6 +41,7 @@ typedef struct AVDOVIMetadataInternal {
AVDOVIRpuDataHeader header;
AVDOVIDataMapping mapping;
AVDOVIColorMetadata color;
+ AVDOVIDmData ext_blocks[AV_DOVI_MAX_EXT_BLOCKS];
} AVDOVIMetadataInternal;
AVDOVIMetadata *av_dovi_metadata_alloc(size_t *size)
@@ -51,10 +54,23 @@ AVDOVIMetadata *av_dovi_metadata_alloc(size_t *size)
*size = sizeof(*dovi);
dovi->metadata = (struct AVDOVIMetadata) {
- .header_offset = offsetof(AVDOVIMetadataInternal, header),
- .mapping_offset = offsetof(AVDOVIMetadataInternal, mapping),
- .color_offset = offsetof(AVDOVIMetadataInternal, color),
+ .header_offset = offsetof(AVDOVIMetadataInternal, header),
+ .mapping_offset = offsetof(AVDOVIMetadataInternal, mapping),
+ .color_offset = offsetof(AVDOVIMetadataInternal, color),
+ .ext_block_offset = offsetof(AVDOVIMetadataInternal, ext_blocks),
+ .ext_block_size = sizeof(AVDOVIDmData),
};
return &dovi->metadata;
}
+
+AVDOVIDmData *av_dovi_find_level(const AVDOVIMetadata *data, uint8_t level)
+{
+ for (int i = 0; i < data->num_ext_blocks; i++) {
+ AVDOVIDmData *ext = av_dovi_get_ext(data, i);
+ if (ext->level == level)
+ return ext;
+ }
+
+ return NULL;
+}
@@ -29,7 +29,9 @@
#include <stdint.h>
#include <stddef.h>
+
#include "rational.h"
+#include "csp.h"
/*
* DOVI configuration
@@ -187,6 +189,130 @@ typedef struct AVDOVIColorMetadata {
uint16_t source_diagonal;
} AVDOVIColorMetadata;
+typedef struct AVDOVIDmLevel1 {
+ /* Per-frame brightness metadata */
+ uint16_t min_pq;
+ uint16_t max_pq;
+ uint16_t avg_pq;
+} AVDOVIDmLevel1;
+
+typedef struct AVDOVIDmLevel2 {
+ /* Usually derived from level 8 (at different levels) */
+ uint16_t target_max_pq;
+ uint16_t trim_slope;
+ uint16_t trim_offset;
+ uint16_t trim_power;
+ uint16_t trim_chroma_weight;
+ uint16_t trim_saturation_gain;
+ int16_t ms_weight;
+} AVDOVIDmLevel2;
+
+typedef struct AVDOVIDmLevel3 {
+ uint16_t min_pq_offset;
+ uint16_t max_pq_offset;
+ uint16_t avg_pq_offset;
+} AVDOVIDmLevel3;
+
+typedef struct AVDOVIDmLevel4 {
+ uint16_t anchor_pq;
+ uint16_t anchor_power;
+} AVDOVIDmLevel4;
+
+typedef struct AVDOVIDmLevel5 {
+ /* Active area definition */
+ uint16_t left_offset;
+ uint16_t right_offset;
+ uint16_t top_offset;
+ uint16_t bottom_offset;
+} AVDOVIDmLevel5;
+
+typedef struct AVDOVIDmLevel6 {
+ /* Static HDR10 metadata */
+ uint16_t max_luminance;
+ uint16_t min_luminance;
+ uint16_t max_cll;
+ uint16_t max_fall;
+} AVDOVIDmLevel6;
+
+typedef struct AVDOVIDmLevel8 {
+ /* Extended version of level 2 */
+ uint8_t target_display_index;
+ uint16_t trim_slope;
+ uint16_t trim_offset;
+ uint16_t trim_power;
+ uint16_t trim_chroma_weight;
+ uint16_t trim_saturation_gain;
+ uint16_t ms_weight;
+ uint16_t target_mid_contrast;
+ uint16_t clip_trim;
+ uint8_t saturation_vector_field[6];
+ uint8_t hue_vector_field[6];
+} AVDOVIDmLevel8;
+
+typedef struct AVDOVIDmLevel9 {
+ /* Source display characteristics */
+ uint8_t source_primary_index;
+ AVColorPrimariesDesc source_display_primaries;
+} AVDOVIDmLevel9;
+
+typedef struct AVDOVIDmLevel10 {
+ /* Target display characteristics */
+ uint8_t target_display_index;
+ uint16_t target_max_pq;
+ uint16_t target_min_pq;
+ uint8_t target_primary_index;
+ AVColorPrimariesDesc target_display_primaries;
+} AVDOVIDmLevel10;
+
+typedef struct AVDOVIDmLevel11 {
+ uint8_t content_type;
+ uint8_t whitepoint;
+ uint8_t reference_mode_flag;
+ uint8_t sharpness;
+ uint8_t noise_reduction;
+ uint8_t mpeg_noise_reduction;
+ uint8_t frame_rate_conversion;
+ uint8_t brightness;
+ uint8_t color;
+} AVDOVIDmLevel11;
+
+typedef struct AVDOVIDmLevel254 {
+ /* DMv2 info block, always present in samples with DMv2 metadata */
+ uint8_t dm_mode;
+ uint8_t dm_version_index;
+} AVDOVIDmLevel254;
+
+typedef struct AVDOVIDmLevel255 {
+ /* Debug block, not really used in samples */
+ uint8_t dm_run_mode;
+ uint8_t dm_run_version;
+ uint8_t dm_debug[4];
+} AVDOVIDmLevel255;
+
+/**
+ * Dolby Vision metadata extension block.
+ *
+ * @note sizeof(AVDOVIDmData) is not part of the public API.
+ */
+typedef struct AVDOVIDmData {
+ uint8_t level; /* [1, 255] */
+ union {
+ AVDOVIDmLevel1 l1;
+ AVDOVIDmLevel2 l2; /* may appear multiple times */
+ AVDOVIDmLevel3 l3;
+ AVDOVIDmLevel4 l4;
+ AVDOVIDmLevel5 l5;
+ AVDOVIDmLevel6 l6;
+ /* level 7 is currently unused */
+ AVDOVIDmLevel8 l8; /* may appear multiple times */
+ AVDOVIDmLevel9 l9;
+ AVDOVIDmLevel10 l10; /* may appear multiple times */
+ AVDOVIDmLevel11 l11;
+ AVDOVIDmLevel254 l254;
+ AVDOVIDmLevel255 l255;
+ };
+} AVDOVIDmData;
+
/**
* Combined struct representing a combination of header, mapping and color
* metadata, for attaching to frames as side data.
@@ -203,6 +329,13 @@ typedef struct AVDOVIMetadata {
size_t header_offset; /* AVDOVIRpuDataHeader */
size_t mapping_offset; /* AVDOVIDataMapping */
size_t color_offset; /* AVDOVIColorMetadata */
+
+ size_t ext_block_offset; /* offset to start of ext blocks array */
+ size_t ext_block_size; /* size per element */
+ int num_ext_blocks; /* number of extension blocks */
+
+ /* static limit on num_ext_blocks, derived from bitstream limitations */
+#define AV_DOVI_MAX_EXT_BLOCKS 32
} AVDOVIMetadata;
static av_always_inline AVDOVIRpuDataHeader *
@@ -223,6 +356,19 @@ av_dovi_get_color(const AVDOVIMetadata *data)
return (AVDOVIColorMetadata *)((uint8_t *) data + data->color_offset);
}
+static av_always_inline AVDOVIDmData *
+av_dovi_get_ext(const AVDOVIMetadata *data, int index)
+{
+ return (AVDOVIDmData *)((uint8_t *) data + data->ext_block_offset +
+ data->ext_block_size * index);
+}
+
+/**
+ * Find an extension block with a given level, or NULL. In the case of
+ * multiple extension blocks, only the first is returned.
+ */
+AVDOVIDmData *av_dovi_find_level(const AVDOVIMetadata *data, uint8_t level);
+
/**
* Allocate an AVDOVIMetadata structure and initialize its
* fields to default values.
@@ -79,7 +79,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 59
-#define LIBAVUTIL_VERSION_MINOR 7
+#define LIBAVUTIL_VERSION_MINOR 8
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
From: Niklas Haas <git@haasn.dev> As well as accessors plus a function for allocating this struct with extension blocks, Definitions generously taken from quietvoid/dovi_tool, which is assembled as a collection of various patent fragments, as well as output by the official Dolby Vision bitstream verifier tool. --- doc/APIchanges | 5 ++ libavutil/dovi_meta.c | 22 ++++++- libavutil/dovi_meta.h | 146 ++++++++++++++++++++++++++++++++++++++++++ libavutil/version.h | 2 +- 4 files changed, 171 insertions(+), 4 deletions(-)