mirror of https://git.ffmpeg.org/ffmpeg.git
131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
/*
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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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/**
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* @file
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* AV1 common definitions
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*/
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#ifndef AVCODEC_AV1_H
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#define AVCODEC_AV1_H
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// OBU types (section 6.2.2).
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typedef enum {
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// 0 reserved.
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AV1_OBU_SEQUENCE_HEADER = 1,
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AV1_OBU_TEMPORAL_DELIMITER = 2,
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AV1_OBU_FRAME_HEADER = 3,
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AV1_OBU_TILE_GROUP = 4,
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AV1_OBU_METADATA = 5,
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AV1_OBU_FRAME = 6,
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AV1_OBU_REDUNDANT_FRAME_HEADER = 7,
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AV1_OBU_TILE_LIST = 8,
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// 9-14 reserved.
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AV1_OBU_PADDING = 15,
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} AV1_OBU_Type;
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// Metadata types (section 6.7.1).
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enum {
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AV1_METADATA_TYPE_HDR_CLL = 1,
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AV1_METADATA_TYPE_HDR_MDCV = 2,
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AV1_METADATA_TYPE_SCALABILITY = 3,
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AV1_METADATA_TYPE_ITUT_T35 = 4,
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AV1_METADATA_TYPE_TIMECODE = 5,
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};
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// Frame types (section 6.8.2).
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enum {
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AV1_FRAME_KEY = 0,
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AV1_FRAME_INTER = 1,
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AV1_FRAME_INTRA_ONLY = 2,
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AV1_FRAME_SWITCH = 3,
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};
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// Reference frames (section 6.10.24).
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enum {
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AV1_REF_FRAME_INTRA = 0,
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AV1_REF_FRAME_LAST = 1,
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AV1_REF_FRAME_LAST2 = 2,
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AV1_REF_FRAME_LAST3 = 3,
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AV1_REF_FRAME_GOLDEN = 4,
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AV1_REF_FRAME_BWDREF = 5,
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AV1_REF_FRAME_ALTREF2 = 6,
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AV1_REF_FRAME_ALTREF = 7,
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};
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// Constants (section 3).
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enum {
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AV1_MAX_OPERATING_POINTS = 32,
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AV1_MAX_SB_SIZE = 128,
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AV1_MI_SIZE = 4,
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AV1_MAX_TILE_WIDTH = 4096,
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AV1_MAX_TILE_AREA = 4096 * 2304,
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AV1_MAX_TILE_ROWS = 64,
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AV1_MAX_TILE_COLS = 64,
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AV1_NUM_REF_FRAMES = 8,
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AV1_REFS_PER_FRAME = 7,
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AV1_TOTAL_REFS_PER_FRAME = 8,
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AV1_PRIMARY_REF_NONE = 7,
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AV1_MAX_SEGMENTS = 8,
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AV1_SEG_LVL_MAX = 8,
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AV1_SEG_LVL_ALT_Q = 0,
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AV1_SEG_LVL_ALT_LF_Y_V = 1,
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AV1_SEG_LVL_REF_FRAME = 5,
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AV1_SEG_LVL_SKIP = 6,
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AV1_SEG_LVL_GLOBAL_MV = 7,
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AV1_SELECT_SCREEN_CONTENT_TOOLS = 2,
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AV1_SELECT_INTEGER_MV = 2,
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AV1_SUPERRES_NUM = 8,
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AV1_SUPERRES_DENOM_MIN = 9,
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AV1_INTERPOLATION_FILTER_SWITCHABLE = 4,
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AV1_GM_ABS_ALPHA_BITS = 12,
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AV1_GM_ALPHA_PREC_BITS = 15,
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AV1_GM_ABS_TRANS_ONLY_BITS = 9,
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AV1_GM_TRANS_ONLY_PREC_BITS = 3,
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AV1_GM_ABS_TRANS_BITS = 12,
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AV1_GM_TRANS_PREC_BITS = 6,
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AV1_WARPEDMODEL_PREC_BITS = 16,
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AV1_WARP_MODEL_IDENTITY = 0,
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AV1_WARP_MODEL_TRANSLATION = 1,
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AV1_WARP_MODEL_ROTZOOM = 2,
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AV1_WARP_MODEL_AFFINE = 3,
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};
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// The main colour configuration information uses the same ISO/IEC 23001-8
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// (H.273) enums as FFmpeg does, so separate definitions are not required.
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// Chroma sample position.
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enum {
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AV1_CSP_UNKNOWN = 0,
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AV1_CSP_VERTICAL = 1, // -> AVCHROMA_LOC_LEFT.
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AV1_CSP_COLOCATED = 2, // -> AVCHROMA_LOC_TOPLEFT.
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};
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#endif /* AVCODEC_AV1_H */
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