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https://github.com/FFmpeg/FFmpeg.git
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7a20656474
Supports both prefix and suffix SEI, decoding all of the common SEI types and some more obscure ones. Most of this is tested by the existing tests in fate.
135 lines
4.5 KiB
C
135 lines
4.5 KiB
C
/*
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* HEVC Supplementary Enhancement Information messages
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_HEVC_SEI_H
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#define AVCODEC_HEVC_SEI_H
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#include <stdint.h>
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#include "get_bits.h"
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/**
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* SEI message types
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*/
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typedef enum {
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HEVC_SEI_TYPE_BUFFERING_PERIOD = 0,
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HEVC_SEI_TYPE_PICTURE_TIMING = 1,
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HEVC_SEI_TYPE_PAN_SCAN_RECT = 2,
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HEVC_SEI_TYPE_FILLER_PAYLOAD = 3,
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HEVC_SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35 = 4,
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HEVC_SEI_TYPE_USER_DATA_UNREGISTERED = 5,
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HEVC_SEI_TYPE_RECOVERY_POINT = 6,
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HEVC_SEI_TYPE_SCENE_INFO = 9,
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HEVC_SEI_TYPE_FULL_FRAME_SNAPSHOT = 15,
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HEVC_SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_START = 16,
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HEVC_SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_END = 17,
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HEVC_SEI_TYPE_FILM_GRAIN_CHARACTERISTICS = 19,
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HEVC_SEI_TYPE_POST_FILTER_HINT = 22,
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HEVC_SEI_TYPE_TONE_MAPPING_INFO = 23,
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HEVC_SEI_TYPE_FRAME_PACKING = 45,
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HEVC_SEI_TYPE_DISPLAY_ORIENTATION = 47,
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HEVC_SEI_TYPE_SOP_DESCRIPTION = 128,
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HEVC_SEI_TYPE_ACTIVE_PARAMETER_SETS = 129,
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HEVC_SEI_TYPE_DECODING_UNIT_INFO = 130,
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HEVC_SEI_TYPE_TEMPORAL_LEVEL0_INDEX = 131,
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HEVC_SEI_TYPE_DECODED_PICTURE_HASH = 132,
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HEVC_SEI_TYPE_SCALABLE_NESTING = 133,
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HEVC_SEI_TYPE_REGION_REFRESH_INFO = 134,
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HEVC_SEI_TYPE_TIME_CODE = 136,
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HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO = 137,
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HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO = 144,
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HEVC_SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS = 147,
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} HEVC_SEI_Type;
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typedef struct HEVCSEIPictureHash {
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uint8_t md5[3][16];
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uint8_t is_md5;
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} HEVCSEIPictureHash;
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typedef struct HEVCSEIFramePacking {
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int present;
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int arrangement_type;
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int content_interpretation_type;
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int quincunx_subsampling;
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int current_frame_is_frame0_flag;
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} HEVCSEIFramePacking;
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typedef struct HEVCSEIDisplayOrientation {
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int present;
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int anticlockwise_rotation;
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int hflip, vflip;
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} HEVCSEIDisplayOrientation;
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typedef struct HEVCSEIPictureTiming {
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int picture_struct;
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} HEVCSEIPictureTiming;
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typedef struct HEVCSEIA53Caption {
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int a53_caption_size;
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uint8_t *a53_caption;
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} HEVCSEIA53Caption;
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typedef struct HEVCSEIMasteringDisplay {
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int present;
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uint16_t display_primaries[3][2];
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uint16_t white_point[2];
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uint32_t max_luminance;
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uint32_t min_luminance;
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} HEVCSEIMasteringDisplay;
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typedef struct HEVCSEIContentLight {
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int present;
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uint16_t max_content_light_level;
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uint16_t max_pic_average_light_level;
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} HEVCSEIContentLight;
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typedef struct HEVCSEIAlternativeTransfer {
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int present;
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int preferred_transfer_characteristics;
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} HEVCSEIAlternativeTransfer;
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typedef struct HEVCSEI {
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HEVCSEIPictureHash picture_hash;
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HEVCSEIFramePacking frame_packing;
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HEVCSEIDisplayOrientation display_orientation;
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HEVCSEIPictureTiming picture_timing;
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HEVCSEIA53Caption a53_caption;
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HEVCSEIMasteringDisplay mastering_display;
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HEVCSEIContentLight content_light;
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int active_seq_parameter_set_id;
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HEVCSEIAlternativeTransfer alternative_transfer;
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} HEVCSEI;
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struct HEVCParamSets;
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int ff_hevc_decode_nal_sei(GetBitContext *gb, void *logctx, HEVCSEI *s,
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const struct HEVCParamSets *ps, int type);
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/**
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* Reset SEI values that are stored on the Context.
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* e.g. Caption data that was extracted during NAL
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* parsing.
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*
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* @param s HEVCContext.
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*/
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void ff_hevc_reset_sei(HEVCSEI *s);
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#endif /* AVCODEC_HEVC_SEI_H */
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