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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 "libavcodec/get_bits.h"
#include "libavcodec/h2645_sei.h"
#include "libavcodec/sei.h"
#include "hevc.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 HEVCSEIPictureTiming {
int picture_struct;
} HEVCSEIPictureTiming;
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 HEVCSEITDRDI {
uint8_t prec_ref_display_width;
uint8_t ref_viewing_distance_flag;
uint8_t prec_ref_viewing_dist;
uint8_t num_ref_displays;
uint16_t left_view_id[32];
uint16_t right_view_id[32];
uint8_t exponent_ref_display_width[32];
uint8_t mantissa_ref_display_width[32];
uint8_t exponent_ref_viewing_distance[32];
uint8_t mantissa_ref_viewing_distance[32];
uint8_t additional_shift_present_flag[32];
int16_t num_sample_shift[32];
uint8_t three_dimensional_reference_displays_extension_flag;
} HEVCSEITDRDI;
typedef struct HEVCSEI {
H2645SEI common;
HEVCSEIPictureHash picture_hash;
HEVCSEIPictureTiming picture_timing;
int active_seq_parameter_set_id;
HEVCSEITimeCode timecode;
HEVCSEITDRDI tdrdi;
} HEVCSEI;
struct HEVCParamSets;
int ff_hevc_decode_nal_sei(GetBitContext *gb, void *logctx, HEVCSEI *s,
const struct HEVCParamSets *ps, enum HEVCNALUnitType type);
static inline int ff_hevc_sei_ctx_replace(HEVCSEI *dst, const HEVCSEI *src)
{
return ff_h2645_sei_ctx_replace(&dst->common, &src->common);
}
/**
* Reset SEI values that are stored on the Context.
* e.g. Caption data that was extracted during NAL
* parsing.
*
* @param sei HEVCSEI.
*/
static inline void ff_hevc_reset_sei(HEVCSEI *sei)
{
ff_h2645_sei_reset(&sei->common);
}
#endif /* AVCODEC_HEVC_SEI_H */
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