1 /* 2 * HEVC Supplementary Enhancement Information messages 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #ifndef AVCODEC_HEVC_SEI_H 22 #define AVCODEC_HEVC_SEI_H 23 24 #include <stdint.h> 25 26 #include "get_bits.h" 27 28 /** 29 * SEI message types 30 */ 31 typedef enum { 32 HEVC_SEI_TYPE_BUFFERING_PERIOD = 0, 33 HEVC_SEI_TYPE_PICTURE_TIMING = 1, 34 HEVC_SEI_TYPE_PAN_SCAN_RECT = 2, 35 HEVC_SEI_TYPE_FILLER_PAYLOAD = 3, 36 HEVC_SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35 = 4, 37 HEVC_SEI_TYPE_USER_DATA_UNREGISTERED = 5, 38 HEVC_SEI_TYPE_RECOVERY_POINT = 6, 39 HEVC_SEI_TYPE_SCENE_INFO = 9, 40 HEVC_SEI_TYPE_FULL_FRAME_SNAPSHOT = 15, 41 HEVC_SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_START = 16, 42 HEVC_SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_END = 17, 43 HEVC_SEI_TYPE_FILM_GRAIN_CHARACTERISTICS = 19, 44 HEVC_SEI_TYPE_POST_FILTER_HINT = 22, 45 HEVC_SEI_TYPE_TONE_MAPPING_INFO = 23, 46 HEVC_SEI_TYPE_FRAME_PACKING = 45, 47 HEVC_SEI_TYPE_DISPLAY_ORIENTATION = 47, 48 HEVC_SEI_TYPE_SOP_DESCRIPTION = 128, 49 HEVC_SEI_TYPE_ACTIVE_PARAMETER_SETS = 129, 50 HEVC_SEI_TYPE_DECODING_UNIT_INFO = 130, 51 HEVC_SEI_TYPE_TEMPORAL_LEVEL0_INDEX = 131, 52 HEVC_SEI_TYPE_DECODED_PICTURE_HASH = 132, 53 HEVC_SEI_TYPE_SCALABLE_NESTING = 133, 54 HEVC_SEI_TYPE_REGION_REFRESH_INFO = 134, 55 HEVC_SEI_TYPE_TIME_CODE = 136, 56 HEVC_SEI_TYPE_MASTERING_DISPLAY_INFO = 137, 57 HEVC_SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO = 144, 58 HEVC_SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS = 147, 59 HEVC_SEI_TYPE_ALPHA_CHANNEL_INFO = 165, 60 } HEVC_SEI_Type; 61 62 typedef enum { 63 HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING = 7, 64 HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING = 8 65 } HEVC_SEI_PicStructType; 66 67 typedef struct HEVCSEIPictureHash { 68 uint8_t md5[3][16]; 69 uint8_t is_md5; 70 } HEVCSEIPictureHash; 71 72 typedef struct HEVCSEIFramePacking { 73 int present; 74 int arrangement_type; 75 int content_interpretation_type; 76 int quincunx_subsampling; 77 int current_frame_is_frame0_flag; 78 } HEVCSEIFramePacking; 79 80 typedef struct HEVCSEIDisplayOrientation { 81 int present; 82 int anticlockwise_rotation; 83 int hflip, vflip; 84 } HEVCSEIDisplayOrientation; 85 86 typedef struct HEVCSEIPictureTiming { 87 int picture_struct; 88 } HEVCSEIPictureTiming; 89 90 typedef struct HEVCSEIA53Caption { 91 AVBufferRef *buf_ref; 92 } HEVCSEIA53Caption; 93 94 typedef struct HEVCSEIMasteringDisplay { 95 int present; 96 uint16_t display_primaries[3][2]; 97 uint16_t white_point[2]; 98 uint32_t max_luminance; 99 uint32_t min_luminance; 100 } HEVCSEIMasteringDisplay; 101 102 typedef struct HEVCSEIContentLight { 103 int present; 104 uint16_t max_content_light_level; 105 uint16_t max_pic_average_light_level; 106 } HEVCSEIContentLight; 107 108 typedef struct HEVCSEIAlternativeTransfer { 109 int present; 110 int preferred_transfer_characteristics; 111 } HEVCSEIAlternativeTransfer; 112 113 typedef struct HEVCSEI { 114 HEVCSEIPictureHash picture_hash; 115 HEVCSEIFramePacking frame_packing; 116 HEVCSEIDisplayOrientation display_orientation; 117 HEVCSEIPictureTiming picture_timing; 118 HEVCSEIA53Caption a53_caption; 119 HEVCSEIMasteringDisplay mastering_display; 120 HEVCSEIContentLight content_light; 121 int active_seq_parameter_set_id; 122 HEVCSEIAlternativeTransfer alternative_transfer; 123 } HEVCSEI; 124 125 struct HEVCParamSets; 126 127 int ff_hevc_decode_nal_sei(GetBitContext *gb, void *logctx, HEVCSEI *s, 128 const struct HEVCParamSets *ps, int type); 129 130 /** 131 * Reset SEI values that are stored on the Context. 132 * e.g. Caption data that was extracted during NAL 133 * parsing. 134 * 135 * @param s HEVCContext. 136 */ 137 void ff_hevc_reset_sei(HEVCSEI *s); 138 139 #endif /* AVCODEC_HEVC_SEI_H */ 140