| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * MQ-coder encoder and decoder common functions | ||
| 3 | * Copyright (c) 2007 Kamil Nowosad | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | /** | ||
| 23 | * MQ-coder common (decoder/encoder) functions | ||
| 24 | * @file | ||
| 25 | * @author Kamil Nowosad | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include <string.h> | ||
| 29 | #include <stdint.h> | ||
| 30 | |||
| 31 | #include "mqc.h" | ||
| 32 | |||
| 33 | const uint16_t ff_mqc_qe[2 * 47] = { | ||
| 34 | 0x5601, 0x5601, 0x3401, 0x3401, 0x1801, 0x1801, 0x0ac1, 0x0ac1, | ||
| 35 | 0x0521, 0x0521, 0x0221, 0x0221, 0x5601, 0x5601, 0x5401, 0x5401, | ||
| 36 | 0x4801, 0x4801, 0x3801, 0x3801, 0x3001, 0x3001, 0x2401, 0x2401, | ||
| 37 | 0x1c01, 0x1c01, 0x1601, 0x1601, 0x5601, 0x5601, 0x5401, 0x5401, | ||
| 38 | 0x5101, 0x5101, 0x4801, 0x4801, 0x3801, 0x3801, 0x3401, 0x3401, | ||
| 39 | 0x3001, 0x3001, 0x2801, 0x2801, 0x2401, 0x2401, 0x2201, 0x2201, | ||
| 40 | 0x1c01, 0x1c01, 0x1801, 0x1801, 0x1601, 0x1601, 0x1401, 0x1401, | ||
| 41 | 0x1201, 0x1201, 0x1101, 0x1101, 0x0ac1, 0x0ac1, 0x09c1, 0x09c1, | ||
| 42 | 0x08a1, 0x08a1, 0x0521, 0x0521, 0x0441, 0x0441, 0x02a1, 0x02a1, | ||
| 43 | 0x0221, 0x0221, 0x0141, 0x0141, 0x0111, 0x0111, 0x0085, 0x0085, | ||
| 44 | 0x0049, 0x0049, 0x0025, 0x0025, 0x0015, 0x0015, 0x0009, 0x0009, | ||
| 45 | 0x0005, 0x0005, 0x0001, 0x0001, 0x5601, 0x5601 | ||
| 46 | }; | ||
| 47 | const uint8_t ff_mqc_nlps[2 * 47] = { | ||
| 48 | 3, 2, 12, 13, 18, 19, 24, 25, 58, 59, 66, 67, 13, 12, 28, 29, | ||
| 49 | 28, 29, 28, 29, 34, 35, 36, 37, 40, 41, 42, 43, 29, 28, 28, 29, | ||
| 50 | 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 38, 39, 40, 41, 42, 43, | ||
| 51 | 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, | ||
| 52 | 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, | ||
| 53 | 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 92, 93 | ||
| 54 | }; | ||
| 55 | const uint8_t ff_mqc_nmps[2 * 47] = { | ||
| 56 | 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 76, 77, 14, 15, 16, 17, | ||
| 57 | 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 58, 59, 30, 31, 32, 33, | ||
| 58 | 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, | ||
| 59 | 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, | ||
| 60 | 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, | ||
| 61 | 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 90, 91, 92, 93 | ||
| 62 | }; | ||
| 63 | |||
| 64 | 1707324 | void ff_mqc_init_contexts(MqcState *mqc) | |
| 65 | { | ||
| 66 | 1707324 | memset(mqc->cx_states, 0, sizeof(mqc->cx_states)); | |
| 67 | 1707324 | mqc->cx_states[MQC_CX_UNI] = 2 * 46; | |
| 68 | 1707324 | mqc->cx_states[MQC_CX_RL] = 2 * 3; | |
| 69 | 1707324 | mqc->cx_states[0] = 2 * 4; | |
| 70 | 1707324 | } | |
| 71 |