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/*
* HEVC Supplementary Enhancement Information messages
*
* 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 2.1 of the License, or (at your option) any later version.
*
* 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_HEVC_SEI_H
#define AVCODEC_HEVC_SEI_H
#include <stdint.h>
#include "libavutil/buffer.h"
#include "get_bits.h"
#include "sei.h"
typedef enum {
HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING = 7,
HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING = 8
} HEVC_SEI_PicStructType;
typedef struct HEVCSEIPictureHash {
uint8_t md5[3][16];
uint8_t is_md5;
} HEVCSEIPictureHash;
typedef struct HEVCSEIFramePacking {
int present;
int arrangement_type;
int content_interpretation_type;
int quincunx_subsampling;
int current_frame_is_frame0_flag;
} HEVCSEIFramePacking;
typedef struct HEVCSEIDisplayOrientation {
int present;
int anticlockwise_rotation;
int hflip, vflip;
} HEVCSEIDisplayOrientation;
typedef struct HEVCSEIPictureTiming {
int picture_struct;
} HEVCSEIPictureTiming;
typedef struct HEVCSEIA53Caption {
AVBufferRef *buf_ref;
} HEVCSEIA53Caption;
typedef struct HEVCSEIUnregistered {
AVBufferRef **buf_ref;
int nb_buf_ref;
} HEVCSEIUnregistered;
typedef struct HEVCSEIMasteringDisplay {
int present;
uint16_t display_primaries[3][2];
uint16_t white_point[2];
uint32_t max_luminance;
uint32_t min_luminance;
} HEVCSEIMasteringDisplay;
typedef struct HEVCSEIDynamicHDRPlus {
AVBufferRef *info;
} HEVCSEIDynamicHDRPlus;
typedef struct HEVCSEIContentLight {
int present;
uint16_t max_content_light_level;
uint16_t max_pic_average_light_level;
} HEVCSEIContentLight;
typedef struct HEVCSEIAlternativeTransfer {
int present;
int preferred_transfer_characteristics;
} HEVCSEIAlternativeTransfer;
typedef struct HEVCSEITimeCode {
int present;
uint8_t num_clock_ts;
uint8_t clock_timestamp_flag[3];
uint8_t units_field_based_flag[3];
uint8_t counting_type[3];
uint8_t full_timestamp_flag[3];
uint8_t discontinuity_flag[3];
uint8_t cnt_dropped_flag[3];
uint16_t n_frames[3];
uint8_t seconds_value[3];
uint8_t minutes_value[3];
uint8_t hours_value[3];
uint8_t seconds_flag[3];
uint8_t minutes_flag[3];
uint8_t hours_flag[3];
uint8_t time_offset_length[3];
int32_t time_offset_value[3];
} HEVCSEITimeCode;
typedef struct HEVCSEIFilmGrainCharacteristics {
int present;
int model_id;
int separate_colour_description_present_flag;
int bit_depth_luma;
int bit_depth_chroma;
int full_range;
int color_primaries;
int transfer_characteristics;
int matrix_coeffs;
int blending_mode_id;
int log2_scale_factor;
int comp_model_present_flag[3];
uint16_t num_intensity_intervals[3];
uint8_t num_model_values[3];
uint8_t intensity_interval_lower_bound[3][256];
uint8_t intensity_interval_upper_bound[3][256];
int16_t comp_model_value[3][256][6];
int persistence_flag;
} HEVCSEIFilmGrainCharacteristics;
typedef struct HEVCSEI {
HEVCSEIPictureHash picture_hash;
HEVCSEIFramePacking frame_packing;
HEVCSEIDisplayOrientation display_orientation;
HEVCSEIPictureTiming picture_timing;
HEVCSEIA53Caption a53_caption;
HEVCSEIUnregistered unregistered;
HEVCSEIMasteringDisplay mastering_display;
HEVCSEIDynamicHDRPlus dynamic_hdr_plus;
HEVCSEIContentLight content_light;
int active_seq_parameter_set_id;
HEVCSEIAlternativeTransfer alternative_transfer;
HEVCSEITimeCode timecode;
HEVCSEIFilmGrainCharacteristics film_grain_characteristics;
} HEVCSEI;
struct HEVCParamSets;
int ff_hevc_decode_nal_sei(GetBitContext *gb, void *logctx, HEVCSEI *s,
const struct HEVCParamSets *ps, int type);
/**
* Reset SEI values that are stored on the Context.
* e.g. Caption data that was extracted during NAL
* parsing.
*
* @param s HEVCContext.
*/
void ff_hevc_reset_sei(HEVCSEI *s);
#endif /* AVCODEC_HEVC_SEI_H */
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