| /* |
| * Constants for DV codec |
| * Copyright (c) 2002 Fabrice Bellard |
| * |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * Constants for DV codec. |
| */ |
| |
| #include <stdint.h> |
| |
| #include "dvdata.h" |
| |
| /* Specific zigzag scan for 248 idct. NOTE that unlike the |
| * specification, we interleave the fields */ |
| const uint8_t ff_dv_zigzag248_direct[64] = { |
| 0, 8, 1, 9, 16, 24, 2, 10, |
| 17, 25, 32, 40, 48, 56, 33, 41, |
| 18, 26, 3, 11, 4, 12, 19, 27, |
| 34, 42, 49, 57, 50, 58, 35, 43, |
| 20, 28, 5, 13, 6, 14, 21, 29, |
| 36, 44, 51, 59, 52, 60, 37, 45, |
| 22, 30, 7, 15, 23, 31, 38, 46, |
| 53, 61, 54, 62, 39, 47, 55, 63, |
| }; |
| |
| /* unquant tables (not used directly) */ |
| const uint8_t ff_dv_quant_shifts[22][4] = { |
| { 3, 3, 4, 4 }, |
| { 3, 3, 4, 4 }, |
| { 2, 3, 3, 4 }, |
| { 2, 3, 3, 4 }, |
| { 2, 2, 3, 3 }, |
| { 2, 2, 3, 3 }, |
| { 1, 2, 2, 3 }, |
| { 1, 2, 2, 3 }, |
| { 1, 1, 2, 2 }, |
| { 1, 1, 2, 2 }, |
| { 0, 1, 1, 2 }, |
| { 0, 1, 1, 2 }, |
| { 0, 0, 1, 1 }, |
| { 0, 0, 1, 1 }, |
| { 0, 0, 0, 1 }, |
| { 0, 0, 0, 0 }, |
| { 0, 0, 0, 0 }, |
| { 0, 0, 0, 0 }, |
| { 0, 0, 0, 0 }, |
| { 0, 0, 0, 0 }, |
| { 0, 0, 0, 0 }, |
| { 0, 0, 0, 0 }, |
| }; |
| |
| const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 }; |
| |
| /* |
| * There's a catch about the following three tables: the mapping they establish |
| * between (run, level) and vlc is not 1-1. So you have to watch out for that |
| * when building misc. tables. E.g. (1, 0) can be either 0x7cf or 0x1f82. |
| */ |
| const uint8_t ff_dv_vlc_len[NB_DV_VLC] = { |
| 2, 3, 4, 4, 4, 4, 5, 5, 5, |
| 5, 6, 6, 6, 6, 7, 7, 7, |
| 7, 7, 7, 7, 7, 8, 8, 8, |
| 8, 8, 8, 8, 8, 8, 8, 8, |
| 8, 8, 8, 8, 8, 9, 9, 9, |
| 9, 9, 9, 9, 9, 9, 9, 9, |
| 9, 9, 9, 9, 9, 10, 10, 10, |
| 10, 10, 10, 10, 11, 11, 11, 11, |
| 11, 11, 11, 11, 12, 12, 12, 12, |
| 12, 12, 12, 12, 12, 12, 12, 12, |
| 12, 12, 12, 12, 12, 12, 12, 12, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 13, 13, 13, 13, 13, 13, 13, 13, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| 15, 15, 15, 15, 15, 15, 15, 15, |
| }; |
| |
| const uint8_t ff_dv_vlc_run[NB_DV_VLC] = { |
| 0, 0, 127, 1, 0, 0, 2, 1, 0, |
| 0, 3, 4, 0, 0, 5, 6, 2, |
| 1, 1, 0, 0, 0, 7, 8, 9, |
| 10, 3, 4, 2, 1, 1, 1, 0, |
| 0, 0, 0, 0, 0, 11, 12, 13, |
| 14, 5, 6, 3, 4, 2, 2, 1, |
| 0, 0, 0, 0, 0, 5, 3, 3, |
| 2, 1, 1, 1, 0, 1, 6, 4, |
| 3, 1, 1, 1, 2, 3, 4, 5, |
| 7, 8, 9, 10, 7, 8, 4, 3, |
| 2, 2, 2, 2, 2, 1, 1, 1, |
| 0, 1, 2, 3, 4, 5, 6, 7, |
| 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, |
| 24, 25, 26, 27, 28, 29, 30, 31, |
| 32, 33, 34, 35, 36, 37, 38, 39, |
| 40, 41, 42, 43, 44, 45, 46, 47, |
| 48, 49, 50, 51, 52, 53, 54, 55, |
| 56, 57, 58, 59, 60, 61, 62, 63, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| const uint8_t ff_dv_vlc_level[NB_DV_VLC] = { |
| 1, 2, 0, 1, 3, 4, 1, 2, 5, |
| 6, 1, 1, 7, 8, 1, 1, 2, |
| 3, 4, 9, 10, 11, 1, 1, 1, |
| 1, 2, 2, 3, 5, 6, 7, 12, |
| 13, 14, 15, 16, 17, 1, 1, 1, |
| 1, 2, 2, 3, 3, 4, 5, 8, |
| 18, 19, 20, 21, 22, 3, 4, 5, |
| 6, 9, 10, 11, 0, 0, 3, 4, |
| 6, 12, 13, 14, 0, 0, 0, 0, |
| 2, 2, 2, 2, 3, 3, 5, 7, |
| 7, 8, 9, 10, 11, 15, 16, 17, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 1, 2, 3, 4, 5, 6, 7, |
| 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, |
| 24, 25, 26, 27, 28, 29, 30, 31, |
| 32, 33, 34, 35, 36, 37, 38, 39, |
| 40, 41, 42, 43, 44, 45, 46, 47, |
| 48, 49, 50, 51, 52, 53, 54, 55, |
| 56, 57, 58, 59, 60, 61, 62, 63, |
| 64, 65, 66, 67, 68, 69, 70, 71, |
| 72, 73, 74, 75, 76, 77, 78, 79, |
| 80, 81, 82, 83, 84, 85, 86, 87, |
| 88, 89, 90, 91, 92, 93, 94, 95, |
| 96, 97, 98, 99, 100, 101, 102, 103, |
| 104, 105, 106, 107, 108, 109, 110, 111, |
| 112, 113, 114, 115, 116, 117, 118, 119, |
| 120, 121, 122, 123, 124, 125, 126, 127, |
| 128, 129, 130, 131, 132, 133, 134, 135, |
| 136, 137, 138, 139, 140, 141, 142, 143, |
| 144, 145, 146, 147, 148, 149, 150, 151, |
| 152, 153, 154, 155, 156, 157, 158, 159, |
| 160, 161, 162, 163, 164, 165, 166, 167, |
| 168, 169, 170, 171, 172, 173, 174, 175, |
| 176, 177, 178, 179, 180, 181, 182, 183, |
| 184, 185, 186, 187, 188, 189, 190, 191, |
| 192, 193, 194, 195, 196, 197, 198, 199, |
| 200, 201, 202, 203, 204, 205, 206, 207, |
| 208, 209, 210, 211, 212, 213, 214, 215, |
| 216, 217, 218, 219, 220, 221, 222, 223, |
| 224, 225, 226, 227, 228, 229, 230, 231, |
| 232, 233, 234, 235, 236, 237, 238, 239, |
| 240, 241, 242, 243, 244, 245, 246, 247, |
| 248, 249, 250, 251, 252, 253, 254, 255, |
| }; |