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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/md5.h"
#include "get_bits.h"
/**
* SEI message types
*/
typedef enum {
HEVC_SEI_TYPE_BUFFERING_PERIOD = 0,
HEVC_SEI_TYPE_PICTURE_TIMING = 1,
HEVC_SEI_TYPE_PAN_SCAN_RECT = 2,
HEVC_SEI_TYPE_FILLER_PAYLOAD = 3,
HEVC_SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35 = 4,
HEVC_SEI_TYPE_USER_DATA_UNREGISTERED = 5,
HEVC_SEI_TYPE_RECOVERY_POINT = 6,
HEVC_SEI_TYPE_SCENE_INFO = 9,
HEVC_SEI_TYPE_FULL_FRAME_SNAPSHOT = 15,
HEVC_SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_START = 16,
HEVC_SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_END = 17,
HEVC_SEI_TYPE_FILM_GRAIN_CHARACTERISTICS = 19,
HEVC_SEI_TYPE_POST_FILTER_HINT = 22,
HEVC_SEI_TYPE_TONE_MAPPING_INFO = 23,
HEVC_SEI_TYPE_FRAME_PACKING = 45,
HEVC_SEI_TYPE_DISPLAY_ORIENTATION = 47,
HEVC_SEI_TYPE_SOP_DESCRIPTION = 128,
HEVC_SEI_TYPE_ACTIVE_PARAMETER_SETS = 129,
HEVC_SEI_TYPE_DECODING_UNIT_INFO = 130,
HEVC_SEI_TYPE_TEMPORAL_LEVEL0_INDEX = 131,
HEVC_SEI_TYPE_DECODED_PICTURE_HASH = 132,
HEVC_SEI_TYPE_SCALABLE_NESTING = 133,
HEVC_SEI_TYPE_REGION_REFRESH_INFO = 134,
HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO = 137,
HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO = 144,
} HEVC_SEI_Type;
typedef struct HEVCSEIPictureHash {
struct AVMD5 *md5_ctx;
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;
} HEVCSEIFramePacking;
typedef struct HEVCSEIDisplayOrientation {
int present;
int anticlockwise_rotation;
int hflip, vflip;
} HEVCSEIDisplayOrientation;
typedef struct HEVCSEIPictureTiming {
int picture_struct;
} HEVCSEIPictureTiming;
typedef struct HEVCSEIA53Caption {
int a53_caption_size;
uint8_t *a53_caption;
} HEVCSEIA53Caption;
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 HEVCSEIContentLight {
int present;
uint16_t max_content_light_level;
uint16_t max_pic_average_light_level;
} HEVCSEIContentLight;
typedef struct HEVCSEIContext {
HEVCSEIPictureHash picture_hash;
HEVCSEIFramePacking frame_packing;
HEVCSEIDisplayOrientation display_orientation;
HEVCSEIPictureTiming picture_timing;
HEVCSEIA53Caption a53_caption;
HEVCSEIMasteringDisplay mastering_display;
HEVCSEIContentLight content_light;
int active_seq_parameter_set_id;
} HEVCSEIContext;
struct HEVCParamSets;
int ff_hevc_decode_nal_sei(GetBitContext *gb, void *logctx, HEVCSEIContext *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(HEVCSEIContext *s);
#endif /* AVCODEC_HEVC_SEI_H */
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