1 /*
2 * MQ-coder: structures, common and decoder 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 #ifndef AVCODEC_MQC_H
23 #define AVCODEC_MQC_H
24
25 /**
26 * MQ-coder
27 * @file
28 * @author Kamil Nowosad
29 */
30
31 #include <stdint.h>
32
35
39
48
49 /* encoder */
50
51 /** initialize the encoder */
53
54 /** code bit d with context cx */
56
57 /** number of encoded bytes */
59
60 /** flush the encoder [returns number of bytes encoded] */
63
64 /* decoder */
65
66 /**
67 * Initialize MQ-decoder.
68 * @param mqc MQ decoder state
69 * @param bp byte pointer
70 * @param raw raw mode
71 * @param reset reset states
72 */
74
75 /**
76 * MQ decoder.
77 * @param mqc MQ decoder state
78 * @param cxstate Context
79 * @return Decision (0 to 1)
80 */
82
83 /* common */
84
85 /**
86 * MQ-coder Initialize context tables (QE, NLPS, NMPS)
87 */
89
90 /**
91 * MQ-coder context initialisations.
92 * @param mqc MQ-coder context
93 */
95
96 #endif /* AVCODEC_MQC_H */
void ff_mqc_initdec(MqcState *mqc, uint8_t *bp, int raw, int reset)
Initialize MQ-decoder.
void ff_mqc_init_contexts(MqcState *mqc)
MQ-coder context initialisations.
void ff_mqc_initenc(MqcState *mqc, uint8_t *bp)
initialize the encoder
uint16_t ff_mqc_qe[2 *47]
int ff_mqc_decode(MqcState *mqc, uint8_t *cxstate)
MQ decoder.
int ff_mqc_flush(MqcState *mqc)
flush the encoder [returns number of bytes encoded]
uint8_t ff_mqc_nlps[2 *47]
int ff_mqc_length(MqcState *mqc)
number of encoded bytes
int ff_mqc_flush_to(MqcState *mqc, uint8_t *dst, int *dst_len)
void ff_mqc_init_context_tables(void)
MQ-coder Initialize context tables (QE, NLPS, NMPS)
uint8_t ff_mqc_nmps[2 *47]
void ff_mqc_encode(MqcState *mqc, uint8_t *cxstate, int d)
code bit d with context cx