mirror of https://git.ffmpeg.org/ffmpeg.git
157 lines
5.2 KiB
C
157 lines
5.2 KiB
C
/*
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* H.266 / VVC shared code
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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_VVC_H
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#define AVCODEC_VVC_H
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/**
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* Table 5 – NAL unit type codes and NAL unit type classes
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* in T-REC-H.266-202008
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*/
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enum VVCNALUnitType {
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VVC_TRAIL_NUT = 0,
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VVC_STSA_NUT = 1,
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VVC_RADL_NUT = 2,
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VVC_RASL_NUT = 3,
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VVC_RSV_VCL_4 = 4,
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VVC_RSV_VCL_5 = 5,
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VVC_RSV_VCL_6 = 6,
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VVC_IDR_W_RADL = 7,
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VVC_IDR_N_LP = 8,
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VVC_CRA_NUT = 9,
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VVC_GDR_NUT = 10,
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VVC_RSV_IRAP_11 = 11,
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VVC_OPI_NUT = 12,
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VVC_DCI_NUT = 13,
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VVC_VPS_NUT = 14,
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VVC_SPS_NUT = 15,
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VVC_PPS_NUT = 16,
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VVC_PREFIX_APS_NUT = 17,
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VVC_SUFFIX_APS_NUT = 18,
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VVC_PH_NUT = 19,
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VVC_AUD_NUT = 20,
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VVC_EOS_NUT = 21,
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VVC_EOB_NUT = 22,
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VVC_PREFIX_SEI_NUT = 23,
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VVC_SUFFIX_SEI_NUT = 24,
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VVC_FD_NUT = 25,
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VVC_RSV_NVCL_26 = 26,
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VVC_RSV_NVCL_27 = 27,
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VVC_UNSPEC_28 = 28,
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VVC_UNSPEC_29 = 29,
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VVC_UNSPEC_30 = 30,
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VVC_UNSPEC_31 = 31,
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};
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enum VVCSliceType {
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VVC_SLICE_TYPE_B = 0,
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VVC_SLICE_TYPE_P = 1,
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VVC_SLICE_TYPE_I = 2,
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};
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enum VVCAPSType {
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VVC_ASP_TYPE_ALF = 0,
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VVC_ASP_TYPE_LMCS = 1,
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VVC_ASP_TYPE_SCALING = 2,
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};
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enum {
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//6.2 we can have 3 sample arrays
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VVC_MAX_SAMPLE_ARRAYS = 3,
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//7.4.3.3 vps_max_layers_minus1 is u(6)
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VVC_MAX_LAYERS = 64,
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//7.4.3.3 The value of vps_max_sublayers_minus1 shall be in the range of 0 to 6, inclusive
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VVC_MAX_SUBLAYERS = 7,
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//7.3.2.1 dci_num_ptls_minus1 is u(4)
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VVC_MAX_DCI_PTLS = 16,
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//7.4.3.3 vps_num_ptls_minus1 is u(8)
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VVC_MAX_PTLS = 256,
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//7.4.3.3 vps_num_output_layer_sets_minus2 is u(8)
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VVC_MAX_TOTAL_NUM_OLSS = 257,
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// 7.3.2.3: vps_video_parameter_set_id is u(4).
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VVC_MAX_VPS_COUNT = 16,
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// 7.3.2.4: sps_seq_parameter_set_id is u(4)
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VVC_MAX_SPS_COUNT = 16,
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// 7.3.2.5: pps_pic_parameter_set_id is u(6)
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VVC_MAX_PPS_COUNT = 64,
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// 7.4.4.1: ptl_num_sub_profiles is u(8)
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VVC_MAX_SUB_PROFILES = 256,
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// 7.4.3.18: The variable NumAlfFilters specifying the number of different adaptive loop
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// filters is set equal to 25.
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VVC_NUM_ALF_FILTERS = 25,
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// A.4.2: according to (1577), MaxDpbSize is bounded above by 2 * maxDpbPicBuf(8)
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VVC_MAX_DPB_SIZE = 16,
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//7.4.3.4 sps_num_ref_pic_lists in range [0, 64]
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VVC_MAX_REF_PIC_LISTS = 64,
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//7.4.11 num_ref_entries in range [0, MaxDpbSize + 13]
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VVC_MAX_REF_ENTRIES = VVC_MAX_DPB_SIZE + 13,
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//7.4.3.3 sps_num_points_in_qp_table_minus1[i] in range [0, 36 − sps_qp_table_start_minus26[i]],
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//and sps_qp_table_start_minus26[i] in range [−26 − QpBdOffset, 36].
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//so sps_num_points_in_qp_table_minus1[i] should in range [0, 62 + QpBdOffset]
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//since 16 bits QpBdOffset is 48, sps_num_points_in_qp_table_minus1[i] should range [0, 110]
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VVC_MAX_POINTS_IN_QP_TABLE = 111,
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// 7.4.6.1: hrd_cpb_cnt_minus1 is in [0, 31].
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VVC_MAX_CPB_CNT = 32,
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// A.4.1: the highest level allows a MaxLumaPs of 35 651 584.
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VVC_MAX_LUMA_PS = 35651584,
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// A.4.1: pic_width_in_luma_samples and pic_height_in_luma_samples are
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// constrained to be not greater than sqrt(MaxLumaPs * 8). Hence height/
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// width are bounded above by sqrt(8 * 35651584) = 16888.2 samples.
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VVC_MAX_WIDTH = 16888,
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VVC_MAX_HEIGHT = 16888,
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// A.4.1: table A.1 allows at most 440 tiles per au for any level.
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VVC_MAX_TILES_PER_AU = 440,
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// A.4.1: table A.1 did not define max tile rows.
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// in worest a case, we can have 1x440 tiles picture.
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VVC_MAX_TILE_ROWS = VVC_MAX_TILES_PER_AU,
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// A.4.1: table A.1 allows at most 20 tile columns for any level.
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VVC_MAX_TILE_COLUMNS = 20,
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// A.4.1 table A.1 allows at most 600 slice for any level.
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VVC_MAX_SLICES = 600,
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// 7.4.8: in the worst case (!pps_no_pic_partition_flag and
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// sps_entropy_coding_sync_enabled_flag are both true), entry points can be
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// placed at the beginning of every Ctb row in every tile, giving an
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// upper bound of (num_tile_columns_minus1 + 1) * PicHeightInCtbsY - 1.
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// Only a stream with very high resolution and perverse parameters could
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// get near that, though, so set a lower limit here with the maximum
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// possible value for 8K video (at most 135 32x32 Ctb rows).
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VVC_MAX_ENTRY_POINTS = VVC_MAX_TILE_COLUMNS * 135,
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};
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#endif /* AVCODEC_VVC_H */
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