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