| /* |
| * H.266 / VVC shared code |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVCODEC_VVC_H |
| #define AVCODEC_VVC_H |
| |
| /** |
| * Table 5 – NAL unit type codes and NAL unit type classes |
| * in T-REC-H.266-202008 |
| */ |
| enum VVCNALUnitType { |
| VVC_TRAIL_NUT = 0, |
| VVC_STSA_NUT = 1, |
| VVC_RADL_NUT = 2, |
| VVC_RASL_NUT = 3, |
| VVC_RSV_VCL_4 = 4, |
| VVC_RSV_VCL_5 = 5, |
| VVC_RSV_VCL_6 = 6, |
| VVC_IDR_W_RADL = 7, |
| VVC_IDR_N_LP = 8, |
| VVC_CRA_NUT = 9, |
| VVC_GDR_NUT = 10, |
| VVC_RSV_IRAP_11 = 11, |
| VVC_OPI_NUT = 12, |
| VVC_DCI_NUT = 13, |
| VVC_VPS_NUT = 14, |
| VVC_SPS_NUT = 15, |
| VVC_PPS_NUT = 16, |
| VVC_PREFIX_APS_NUT = 17, |
| VVC_SUFFIX_APS_NUT = 18, |
| VVC_PH_NUT = 19, |
| VVC_AUD_NUT = 20, |
| VVC_EOS_NUT = 21, |
| VVC_EOB_NUT = 22, |
| VVC_PREFIX_SEI_NUT = 23, |
| VVC_SUFFIX_SEI_NUT = 24, |
| VVC_FD_NUT = 25, |
| VVC_RSV_NVCL_26 = 26, |
| VVC_RSV_NVCL_27 = 27, |
| VVC_UNSPEC_28 = 28, |
| VVC_UNSPEC_29 = 29, |
| VVC_UNSPEC_30 = 30, |
| VVC_UNSPEC_31 = 31, |
| }; |
| |
| enum VVCSliceType { |
| VVC_SLICE_TYPE_B = 0, |
| VVC_SLICE_TYPE_P = 1, |
| VVC_SLICE_TYPE_I = 2, |
| }; |
| |
| enum VVCAPSType { |
| VVC_ASP_TYPE_ALF = 0, |
| VVC_ASP_TYPE_LMCS = 1, |
| VVC_ASP_TYPE_SCALING = 2, |
| }; |
| |
| enum { |
| //6.2 we can have 3 sample arrays |
| VVC_MAX_SAMPLE_ARRAYS = 3, |
| |
| //7.4.3.3 vps_max_layers_minus1 is u(6) |
| VVC_MAX_LAYERS = 64, |
| |
| //7.4.3.3 The value of vps_max_sublayers_minus1 shall be in the range of 0 to 6, inclusive |
| VVC_MAX_SUBLAYERS = 7, |
| |
| //7.3.2.1 dci_num_ptls_minus1 is u(4) |
| VVC_MAX_DCI_PTLS = 16, |
| |
| //7.4.3.3 vps_num_ptls_minus1 is u(8) |
| VVC_MAX_PTLS = 256, |
| |
| //7.4.3.3 vps_num_output_layer_sets_minus2 is u(8) |
| VVC_MAX_TOTAL_NUM_OLSS = 257, |
| |
| // 7.3.2.3: vps_video_parameter_set_id is u(4). |
| VVC_MAX_VPS_COUNT = 16, |
| // 7.3.2.4: sps_seq_parameter_set_id is u(4) |
| VVC_MAX_SPS_COUNT = 16, |
| // 7.3.2.5: pps_pic_parameter_set_id is u(6) |
| VVC_MAX_PPS_COUNT = 64, |
| |
| // 7.4.4.1: ptl_num_sub_profiles is u(8) |
| VVC_MAX_SUB_PROFILES = 256, |
| |
| // 7.4.3.18: The variable NumAlfFilters specifying the number of different adaptive loop |
| // filters is set equal to 25. |
| VVC_NUM_ALF_FILTERS = 25, |
| |
| // A.4.2: according to (1577), MaxDpbSize is bounded above by 2 * maxDpbPicBuf(8) |
| VVC_MAX_DPB_SIZE = 16, |
| |
| //7.4.3.4 sps_num_ref_pic_lists in range [0, 64] |
| VVC_MAX_REF_PIC_LISTS = 64, |
| |
| //7.4.11 num_ref_entries in range [0, MaxDpbSize + 13] |
| VVC_MAX_REF_ENTRIES = VVC_MAX_DPB_SIZE + 13, |
| |
| //7.4.3.3 sps_num_points_in_qp_table_minus1[i] in range [0, 36 − sps_qp_table_start_minus26[i]], |
| //and sps_qp_table_start_minus26[i] in range [−26 − QpBdOffset, 36]. |
| //so sps_num_points_in_qp_table_minus1[i] should in range [0, 62 + QpBdOffset] |
| //since 16 bits QpBdOffset is 48, sps_num_points_in_qp_table_minus1[i] should range [0, 110] |
| VVC_MAX_POINTS_IN_QP_TABLE = 111, |
| |
| // 7.4.6.1: hrd_cpb_cnt_minus1 is in [0, 31]. |
| VVC_MAX_CPB_CNT = 32, |
| |
| // A.4.1: the highest level allows a MaxLumaPs of 80,216,064. |
| VVC_MAX_LUMA_PS = 80216064, |
| |
| // A.4.1: pic_width_in_luma_samples and pic_height_in_luma_samples are |
| // constrained to be not greater than sqrt(MaxLumaPs * 8). Hence height/ |
| // width are bounded above by sqrt(8 * 80216064) = 25332.4 samples. |
| VVC_MAX_WIDTH = 25332, |
| VVC_MAX_HEIGHT = 25332, |
| |
| // A.4.1: table A.2 allows at most 990 tiles per AU for any level. |
| VVC_MAX_TILES_PER_AU = 990, |
| // A.4.1: table A.2 did not define max tile rows. |
| // in worest a case, we can have 1x990 tiles picture. |
| VVC_MAX_TILE_ROWS = VVC_MAX_TILES_PER_AU, |
| // A.4.1: table A.2 allows at most 30 tile columns for any level. |
| VVC_MAX_TILE_COLUMNS = 30, |
| |
| // A.4.1 table A.2 allows at most 1000 slices for any level. |
| VVC_MAX_SLICES = 1000, |
| |
| // 7.4.8: in the worst case (!pps_no_pic_partition_flag and |
| // sps_entropy_coding_sync_enabled_flag are both true), entry points can be |
| // placed at the beginning of every Ctb row in every tile, giving an |
| // upper bound of (num_tile_columns_minus1 + 1) * PicHeightInCtbsY - 1. |
| // Only a stream with very high resolution and perverse parameters could |
| // get near that, though, so set a lower limit here with the maximum |
| // possible value for 8K video (at most 135 32x32 Ctb rows). |
| VVC_MAX_ENTRY_POINTS = VVC_MAX_TILE_COLUMNS * 135, |
| }; |
| |
| #endif /* AVCODEC_VVC_H */ |