73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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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 Libav.
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*
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* Libav 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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* Libav 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 Libav; 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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