| /* |
| * MPEG-4 Parametric Stereo data tables |
| * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> |
| * |
| * 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 |
| */ |
| |
| #include <stdint.h> |
| |
| static const uint8_t huff_sizes[] = { 61, 61, 29, 29, 15, 15, 8, 8, 8, 8 }; |
| |
| static const uint8_t aacps_huff_tabs[][2] = { |
| /* huff_iid_df1 - 61 entries */ |
| { 28, 4 }, { 32, 4 }, { 29, 3 }, { 31, 3 }, { 27, 5 }, |
| { 33, 5 }, { 26, 6 }, { 34, 6 }, { 25, 7 }, { 35, 7 }, |
| { 24, 8 }, { 36, 8 }, { 37, 9 }, { 40, 11 }, { 19, 12 }, |
| { 41, 12 }, { 22, 10 }, { 38, 10 }, { 9, 17 }, { 51, 17 }, |
| { 11, 17 }, { 49, 17 }, { 13, 16 }, { 47, 16 }, { 16, 14 }, |
| { 18, 13 }, { 42, 13 }, { 44, 14 }, { 12, 17 }, { 48, 17 }, |
| { 4, 18 }, { 5, 18 }, { 2, 18 }, { 3, 18 }, { 15, 15 }, |
| { 21, 11 }, { 39, 11 }, { 45, 15 }, { 8, 18 }, { 52, 18 }, |
| { 6, 18 }, { 7, 18 }, { 55, 18 }, { 56, 18 }, { 53, 18 }, |
| { 54, 18 }, { 17, 14 }, { 43, 14 }, { 59, 18 }, { 60, 18 }, |
| { 57, 18 }, { 58, 18 }, { 0, 18 }, { 1, 18 }, { 10, 18 }, |
| { 50, 18 }, { 14, 16 }, { 46, 16 }, { 20, 12 }, { 23, 10 }, |
| { 30, 1 }, |
| /* huff_iid_dt1 - 61 entries */ |
| { 31, 2 }, { 26, 7 }, { 34, 7 }, { 27, 6 }, { 33, 6 }, |
| { 35, 8 }, { 24, 9 }, { 36, 9 }, { 39, 11 }, { 41, 12 }, |
| { 9, 15 }, { 10, 15 }, { 48, 15 }, { 49, 15 }, { 17, 13 }, |
| { 23, 10 }, { 37, 10 }, { 43, 13 }, { 11, 15 }, { 12, 15 }, |
| { 4, 16 }, { 56, 16 }, { 2, 16 }, { 3, 16 }, { 59, 16 }, |
| { 60, 16 }, { 57, 16 }, { 58, 16 }, { 0, 16 }, { 1, 16 }, |
| { 5, 16 }, { 55, 16 }, { 6, 16 }, { 54, 16 }, { 13, 15 }, |
| { 15, 14 }, { 20, 12 }, { 40, 12 }, { 22, 11 }, { 38, 11 }, |
| { 45, 14 }, { 47, 15 }, { 7, 16 }, { 53, 16 }, { 18, 13 }, |
| { 42, 13 }, { 16, 14 }, { 44, 14 }, { 8, 16 }, { 52, 16 }, |
| { 14, 15 }, { 46, 15 }, { 50, 16 }, { 51, 16 }, { 19, 13 }, |
| { 21, 12 }, { 25, 9 }, { 28, 5 }, { 32, 5 }, { 29, 3 }, |
| { 30, 1 }, |
| /* huff_iid_df0 - 29 entries */ |
| { 14, 1 }, { 15, 3 }, { 13, 3 }, { 16, 4 }, { 12, 4 }, |
| { 17, 5 }, { 11, 5 }, { 10, 6 }, { 18, 6 }, { 19, 6 }, |
| { 9, 7 }, { 20, 8 }, { 8, 9 }, { 7, 10 }, { 21, 11 }, |
| { 22, 13 }, { 6, 13 }, { 23, 14 }, { 24, 14 }, { 5, 15 }, |
| { 25, 15 }, { 4, 16 }, { 3, 17 }, { 0, 17 }, { 1, 17 }, |
| { 2, 17 }, { 26, 17 }, { 27, 18 }, { 28, 18 }, |
| /* huff_iid_dt0 - 29 entries */ |
| { 14, 1 }, { 13, 2 }, { 15, 3 }, { 12, 4 }, { 16, 5 }, |
| { 11, 6 }, { 17, 7 }, { 10, 8 }, { 18, 9 }, { 9, 10 }, |
| { 19, 11 }, { 8, 12 }, { 20, 13 }, { 21, 14 }, { 7, 15 }, |
| { 22, 17 }, { 6, 17 }, { 23, 19 }, { 0, 19 }, { 1, 19 }, |
| { 2, 19 }, { 3, 20 }, { 4, 20 }, { 5, 20 }, { 24, 20 }, |
| { 25, 20 }, { 26, 20 }, { 27, 20 }, { 28, 20 }, |
| /* huff_icc_df - 15 entries */ |
| { 7, 1 }, { 8, 2 }, { 6, 3 }, { 9, 4 }, { 5, 5 }, |
| { 10, 6 }, { 4, 7 }, { 11, 8 }, { 12, 9 }, { 3, 10 }, |
| { 13, 11 }, { 2, 12 }, { 14, 13 }, { 1, 14 }, { 0, 14 }, |
| /* huff_icc_dt - 15 entries */ |
| { 7, 1 }, { 8, 2 }, { 6, 3 }, { 9, 4 }, { 5, 5 }, |
| { 10, 6 }, { 4, 7 }, { 11, 8 }, { 3, 9 }, { 12, 10 }, |
| { 2, 11 }, { 13, 12 }, { 1, 13 }, { 0, 14 }, { 14, 14 }, |
| /* huff_ipd_df - 8 entries */ |
| { 1, 3 }, { 4, 4 }, { 5, 4 }, { 3, 4 }, { 6, 4 }, |
| { 2, 4 }, { 7, 4 }, { 0, 1 }, |
| /* huff_ipd_dt - 8 entries */ |
| { 5, 4 }, { 4, 5 }, { 3, 5 }, { 2, 4 }, { 6, 4 }, |
| { 1, 3 }, { 7, 3 }, { 0, 1 }, |
| /* huff_opd_df - 8 entries */ |
| { 7, 3 }, { 1, 3 }, { 3, 4 }, { 6, 4 }, { 2, 4 }, |
| { 5, 5 }, { 4, 5 }, { 0, 1 }, |
| /* huff_opd_dt - 8 entries */ |
| { 5, 4 }, { 2, 4 }, { 6, 4 }, { 4, 5 }, { 3, 5 }, |
| { 1, 3 }, { 7, 3 }, { 0, 1 }, |
| }; |
| |
| static const int8_t huff_offset[] = { |
| -30, -30, |
| -14, -14, |
| -7, -7, |
| 0, 0, |
| 0, 0, |
| }; |
| |
| ///Table 8.48 |
| const int8_t ff_k_to_i_20[] = { |
| 1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 14, 15, |
| 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, |
| 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, |
| 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19 |
| }; |
| ///Table 8.49 |
| const int8_t ff_k_to_i_34[] = { |
| 0, 1, 2, 3, 4, 5, 6, 6, 7, 2, 1, 0, 10, 10, 4, 5, 6, 7, 8, |
| 9, 10, 11, 12, 9, 14, 11, 12, 13, 14, 15, 16, 13, 16, 17, 18, 19, 20, 21, |
| 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 28, 29, 29, 29, |
| 30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33, |
| 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33 |
| }; |
