| /* |
| * Apple ProRes compatible decoder |
| * |
| * Copyright (c) 2010-2011 Maxim Poliakovski |
| * |
| * 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 "proresdata.h" |
| |
| const uint8_t ff_prores_progressive_scan[64] = { |
| 0, 1, 8, 9, 2, 3, 10, 11, |
| 16, 17, 24, 25, 18, 19, 26, 27, |
| 4, 5, 12, 20, 13, 6, 7, 14, |
| 21, 28, 29, 22, 15, 23, 30, 31, |
| 32, 33, 40, 48, 41, 34, 35, 42, |
| 49, 56, 57, 50, 43, 36, 37, 44, |
| 51, 58, 59, 52, 45, 38, 39, 46, |
| 53, 60, 61, 54, 47, 55, 62, 63 |
| }; |
| |
| const uint8_t ff_prores_interlaced_scan[64] = { |
| 0, 8, 1, 9, 16, 24, 17, 25, |
| 2, 10, 3, 11, 18, 26, 19, 27, |
| 32, 40, 33, 34, 41, 48, 56, 49, |
| 42, 35, 43, 50, 57, 58, 51, 59, |
| 4, 12, 5, 6, 13, 20, 28, 21, |
| 14, 7, 15, 22, 29, 36, 44, 37, |
| 30, 23, 31, 38, 45, 52, 60, 53, |
| 46, 39, 47, 54, 61, 62, 55, 63 |
| }; |
| |
| |
| const uint8_t ff_prores_dc_codebook[4] = { |
| 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0 |
| 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0 |
| 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1 |
| 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0 |
| }; |
| |
| const uint8_t ff_prores_ac_codebook[7] = { |
| 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0 |
| 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0 |
| 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0 |
| 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1 |
| 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1 |
| 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2 |
| 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2 |
| }; |
| |
| /** |
| * Lookup tables for adaptive switching between codebooks |
| * according with previous run/level value. |
| */ |
| const uint8_t ff_prores_run_to_cb_index[16] = |
| { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 }; |
| |
| const uint8_t ff_prores_lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 }; |