diff --git a/libavcodec/cbs_sei.h b/libavcodec/cbs_sei.h
index 95beabf4d7..5ce4ad3ccd 100644
--- a/libavcodec/cbs_sei.h
+++ b/libavcodec/cbs_sei.h
@@ -21,8 +21,132 @@
#include <stddef.h>
#include <stdint.h>
+
#include "libavutil/buffer.h"
+#include "cbs.h"
+
+// SEI payload types form a common namespace between the H.264, H.265
+// and H.266 standards. A given payload type always has the same
+// meaning, but some names have different payload types in different
+// standards (e.g. scalable-nesting is 30 in H.264 but 133 in H.265).
+// The content of the payload data depends on the standard, though
+// many generic parts have the same interpretation everywhere (such as
+// mastering-display-colour-volume and user-data-unregistered).
+enum {
+ SEI_TYPE_BUFFERING_PERIOD = 0,
+ SEI_TYPE_PIC_TIMING = 1,
+ SEI_TYPE_PAN_SCAN_RECT = 2,
+ SEI_TYPE_FILLER_PAYLOAD = 3,
+ SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35 = 4,
+ SEI_TYPE_USER_DATA_UNREGISTERED = 5,
+ SEI_TYPE_RECOVERY_POINT = 6,
+ SEI_TYPE_DEC_REF_PIC_MARKING_REPETITION = 7,
+ SEI_TYPE_SPARE_PIC = 8,
+ SEI_TYPE_SCENE_INFO = 9,
+ SEI_TYPE_SUB_SEQ_INFO = 10,
+ SEI_TYPE_SUB_SEQ_LAYER_CHARACTERISTICS = 11,
+ SEI_TYPE_SUB_SEQ_CHARACTERISTICS = 12,
+ SEI_TYPE_FULL_FRAME_FREEZE = 13,
+ SEI_TYPE_FULL_FRAME_FREEZE_RELEASE = 14,
+ SEI_TYPE_FULL_FRAME_SNAPSHOT = 15,
+ SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_START = 16,
+ SEI_TYPE_PROGRESSIVE_REFINEMENT_SEGMENT_END = 17,
+ SEI_TYPE_MOTION_CONSTRAINED_SLICE_GROUP_SET = 18,
+ SEI_TYPE_FILM_GRAIN_CHARACTERISTICS = 19,
+ SEI_TYPE_DEBLOCKING_FILTER_DISPLAY_PREFERENCE = 20,
+ SEI_TYPE_STEREO_VIDEO_INFO = 21,
+ SEI_TYPE_POST_FILTER_HINT = 22,
+ SEI_TYPE_TONE_MAPPING_INFO = 23,
+ SEI_TYPE_SCALABILITY_INFO = 24,
+ SEI_TYPE_SUB_PIC_SCALABLE_LAYER = 25,
+ SEI_TYPE_NON_REQUIRED_LAYER_REP = 26,
+ SEI_TYPE_PRIORITY_LAYER_INFO = 27,
+ SEI_TYPE_LAYERS_NOT_PRESENT_4 = 28,
+ SEI_TYPE_LAYER_DEPENDENCY_CHANGE = 29,
+ SEI_TYPE_SCALABLE_NESTING_4 = 30,
+ SEI_TYPE_BASE_LAYER_TEMPORAL_HRD = 31,
+ SEI_TYPE_QUALITY_LAYER_INTEGRITY_CHECK = 32,
+ SEI_TYPE_REDUNDANT_PIC_PROPERTY = 33,
+ SEI_TYPE_TL0_DEP_REP_INDEX = 34,
+ SEI_TYPE_TL_SWITCHING_POINT = 35,
+ SEI_TYPE_PARALLEL_DECODING_INFO = 36,
+ SEI_TYPE_MVC_SCALABLE_NESTING = 37,
+ SEI_TYPE_VIEW_SCALABILITY_INFO = 38,
+ SEI_TYPE_MULTIVIEW_SCENE_INFO_4 = 39,
+ SEI_TYPE_MULTIVIEW_ACQUISITION_INFO_4 = 40,
+ SEI_TYPE_NON_REQUIRED_VIEW_COMPONENT = 41,
+ SEI_TYPE_VIEW_DEPENDENCY_CHANGE = 42,
+ SEI_TYPE_OPERATION_POINTS_NOT_PRESENT = 43,
+ SEI_TYPE_BASE_VIEW_TEMPORAL_HRD = 44,
+ SEI_TYPE_FRAME_PACKING_ARRANGEMENT = 45,
+ SEI_TYPE_MULTIVIEW_VIEW_POSITION_4 = 46,
+ SEI_TYPE_DISPLAY_ORIENTATION = 47,
+ SEI_TYPE_MVCD_SCALABLE_NESTING = 48,
+ SEI_TYPE_MVCD_VIEW_SCALABILITY_INFO = 49,
+ SEI_TYPE_DEPTH_REPRESENTATION_INFO_4 = 50,
+ SEI_TYPE_THREE_DIMENSIONAL_REFERENCE_DISPLAYS_INFO_4 = 51,
+ SEI_TYPE_DEPTH_TIMING = 52,
+ SEI_TYPE_DEPTH_SAMPLING_INFO = 53,
+ SEI_TYPE_CONSTRAINED_DEPTH_PARAMETER_SET_IDENTIFIER = 54,
+ SEI_TYPE_GREEN_METADATA = 56,
+ SEI_TYPE_STRUCTURE_OF_PICTURES_INFO = 128,
+ SEI_TYPE_ACTIVE_PARAMETER_SETS = 129,
+ SEI_TYPE_DECODING_UNIT_INFO = 130,
+ SEI_TYPE_TEMPORAL_SUB_LAYER_ZERO_IDX = 131,
+ SEI_TYPE_DECODED_PICTURE_HASH = 132,
+ SEI_TYPE_SCALABLE_NESTING_5 = 133,
+ SEI_TYPE_REGION_REFRESH_INFO = 134,
+ SEI_TYPE_NO_DISPLAY = 135,
+ SEI_TYPE_TIME_CODE = 136,
+ SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME = 137,
+ SEI_TYPE_SEGMENTED_RECT_FRAME_PACKING_ARRANGEMENT = 138,
+ SEI_TYPE_TEMPORAL_MOTION_CONSTRAINED_TILE_SETS = 139,
+ SEI_TYPE_CHROMA_RESAMPLING_FILTER_HINT = 140,
+ SEI_TYPE_KNEE_FUNCTION_INFO = 141,
+ SEI_TYPE_COLOUR_REMAPPING_INFO = 142,
+ SEI_TYPE_DEINTERLACED_FIELD_IDENTIFICATION = 143,
+ SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO = 144,
+ SEI_TYPE_DEPENDENT_RAP_INDICATION = 145,
+ SEI_TYPE_CODED_REGION_COMPLETION = 146,
+ SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS = 147,
+ SEI_TYPE_AMBIENT_VIEWING_ENVIRONMENT = 148,
+ SEI_TYPE_CONTENT_COLOUR_VOLUME = 149,
+ SEI_TYPE_EQUIRECTANGULAR_PROJECTION = 150,
+ SEI_TYPE_CUBEMAP_PROJECTION = 151,
+ SEI_TYPE_FISHEYE_VIDEO_INFO = 152,
+ SEI_TYPE_SPHERE_ROTATION = 154,
+ SEI_TYPE_REGIONWISE_PACKING = 155,
+ SEI_TYPE_OMNI_VIEWPORT = 156,
+ SEI_TYPE_REGIONAL_NESTING = 157,
+ SEI_TYPE_MCTS_EXTRACTION_INFO_SETS = 158,
+ SEI_TYPE_MCTS_EXTRACTION_INFO_NESTING = 159,
+ SEI_TYPE_LAYERS_NOT_PRESENT_5 = 160,
+ SEI_TYPE_INTER_LAYER_CONSTRAINED_TILE_SETS = 161,
+ SEI_TYPE_BSP_NESTING = 162,
+ SEI_TYPE_BSP_INITIAL_ARRIVAL_TIME = 163,
+ SEI_TYPE_SUB_BITSTREAM_PROPERTY = 164,
+ SEI_TYPE_ALPHA_CHANNEL_INFO = 165,
+ SEI_TYPE_OVERLAY_INFO = 166,
+ SEI_TYPE_TEMPORAL_MV_PREDICTION_CONSTRAINTS = 167,
+ SEI_TYPE_FRAME_FIELD_INFO = 168,
+ SEI_TYPE_THREE_DIMENSIONAL_REFERENCE_DISPLAYS_INFO = 176,
+ SEI_TYPE_DEPTH_REPRESENTATION_INFO_5 = 177,
+ SEI_TYPE_MULTIVIEW_SCENE_INFO_5 = 178,
+ SEI_TYPE_MULTIVIEW_ACQUISITION_INFO_5 = 179,
+ SEI_TYPE_MULTIVIEW_VIEW_POSITION_5 = 180,
+ SEI_TYPE_ALTERNATIVE_DEPTH_INFO = 181,
+ SEI_TYPE_SEI_MANIFEST = 200,
+ SEI_TYPE_SEI_PREFIX_INDICATION = 201,
+ SEI_TYPE_ANNOTATED_REGIONS = 202,
+ SEI_TYPE_SUBPIC_LEVEL_INFO = 203,
+ SEI_TYPE_SAMPLE_ASPECT_RATIO_INFO = 204,
+};
