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bgmc.h
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1 /*
2  * Block Gilbert-Moore decoder
3  * Copyright (c) 2010 Thilo Borgmann <thilo.borgmann _at_ mail.de>
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  * @file
24  * Block Gilbert-Moore decoder header
25  * @author Thilo Borgmann <thilo.borgmann _at_ mail.de>
26  */
27 
28 
29 #ifndef AVCODEC_BGMC_H
30 #define AVCODEC_BGMC_H
31 
32 
33 #include "avcodec.h"
34 #include "get_bits.h"
35 
36 
37 int ff_bgmc_init(AVCodecContext *avctx, uint8_t **cf_lut, int **cf_lut_status);
38 
39 
40 void ff_bgmc_end(uint8_t **cf_lut, int **cf_lut_status);
41 
42 
44  unsigned int *h, unsigned int *l, unsigned int *v);
45 
46 
48 
49 
50 void ff_bgmc_decode(GetBitContext *gb, unsigned int num, int32_t *dst,
51  int delta, unsigned int sx,
52  unsigned int *h, unsigned int *l, unsigned int *v,
53  uint8_t *cf_lut, int *cf_lut_status);
54 
55 
56 #endif /* AVCODEC_BGMC_H */
void ff_bgmc_decode(GetBitContext *gb, unsigned int num, int32_t *dst, int delta, unsigned int sx, unsigned int *h, unsigned int *l, unsigned int *v, uint8_t *cf_lut, int *cf_lut_status)
Read and decode a block Gilbert-Moore coded symbol.
Definition: bgmc.c:505
uint8_t
float delta
bitstream reader API header.
void ff_bgmc_decode_init(GetBitContext *gb, unsigned int *h, unsigned int *l, unsigned int *v)
Initialize decoding and reads the first value.
Definition: bgmc.c:488
void ff_bgmc_decode_end(GetBitContext *gb)
Finish decoding.
Definition: bgmc.c:498
int32_t
void ff_bgmc_end(uint8_t **cf_lut, int **cf_lut_status)
Release the lookup table arrays.
Definition: bgmc.c:480
int ff_bgmc_init(AVCodecContext *avctx, uint8_t **cf_lut, int **cf_lut_status)
Initialize the lookup table arrays.
Definition: bgmc.c:460
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1488