1 /* 2 * Apple ProRes compatible decoder 3 * 4 * Copyright (c) 2010-2011 Maxim Poliakovski 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23 #include "proresdata.h" 24 25 const uint8_t ff_prores_progressive_scan[64] = { 26 0, 1, 8, 9, 2, 3, 10, 11, 27 16, 17, 24, 25, 18, 19, 26, 27, 28 4, 5, 12, 20, 13, 6, 7, 14, 29 21, 28, 29, 22, 15, 23, 30, 31, 30 32, 33, 40, 48, 41, 34, 35, 42, 31 49, 56, 57, 50, 43, 36, 37, 44, 32 51, 58, 59, 52, 45, 38, 39, 46, 33 53, 60, 61, 54, 47, 55, 62, 63 34 }; 35 36 const uint8_t ff_prores_interlaced_scan[64] = { 37 0, 8, 1, 9, 16, 24, 17, 25, 38 2, 10, 3, 11, 18, 26, 19, 27, 39 32, 40, 33, 34, 41, 48, 56, 49, 40 42, 35, 43, 50, 57, 58, 51, 59, 41 4, 12, 5, 6, 13, 20, 28, 21, 42 14, 7, 15, 22, 29, 36, 44, 37, 43 30, 23, 31, 38, 45, 52, 60, 53, 44 46, 39, 47, 54, 61, 62, 55, 63 45 }; 46 47 48 const uint8_t ff_prores_dc_codebook[4] = { 49 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0 50 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0 51 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1 52 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0 53 }; 54 55 const uint8_t ff_prores_ac_codebook[7] = { 56 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0 57 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0 58 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0 59 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1 60 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1 61 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2 62 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2 63 }; 64 65 /** 66 * Lookup tables for adaptive switching between codebooks 67 * according with previous run/level value. 68 */ 69 const uint8_t ff_prores_run_to_cb_index[16] = 70 { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 }; 71 72 const uint8_t ff_prores_lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 }; 73