libavcodec: Add missing AVClass pointers
[libav.git] / libavcodec / huffyuv.h
1 /*
2 * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
5 * the algorithm used
6 *
7 * This file is part of Libav.
8 *
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 /**
25 * @file
26 * huffyuv codec for libavcodec.
27 */
28
29 #ifndef AVCODEC_HUFFYUV_H
30 #define AVCODEC_HUFFYUV_H
31
32 #include <stdint.h>
33
34 #include "avcodec.h"
35 #include "bswapdsp.h"
36 #include "get_bits.h"
37 #include "huffyuvdsp.h"
38 #include "huffyuvencdsp.h"
39 #include "put_bits.h"
40
41 #define VLC_BITS 11
42
43 #if HAVE_BIGENDIAN
44 #define B 3
45 #define G 2
46 #define R 1
47 #define A 0
48 #else
49 #define B 0
50 #define G 1
51 #define R 2
52 #define A 3
53 #endif
54
55 typedef enum Predictor {
56 LEFT = 0,
57 PLANE,
58 MEDIAN,
59 } Predictor;
60
61 typedef struct HYuvContext {
62 const AVClass *class;
63 AVCodecContext *avctx;
64 Predictor predictor;
65 GetBitContext gb;
66 PutBitContext pb;
67 int interlaced;
68 int decorrelate;
69 int bitstream_bpp;
70 int version;
71 int yuy2; //use yuy2 instead of 422P
72 int bgr32; //use bgr32 instead of bgr24
73 int width, height;
74 int flags;
75 int context;
76 int picture_number;
77 int last_slice_end;
78 uint8_t *temp[3];
79 uint64_t stats[3][256];
80 uint8_t len[3][256];
81 uint32_t bits[3][256];
82 uint32_t pix_bgr_map[1<<VLC_BITS];
83 VLC vlc[6]; //Y,U,V,YY,YU,YV
84 uint8_t *bitstream_buffer;
85 unsigned int bitstream_buffer_size;
86 BswapDSPContext bdsp;
87 HuffYUVDSPContext hdsp;
88 HuffYUVEncDSPContext hencdsp;
89 } HYuvContext;
90
91 void ff_huffyuv_common_init(AVCodecContext *s);
92 void ff_huffyuv_common_end(HYuvContext *s);
93 int ff_huffyuv_alloc_temp(HYuvContext *s);
94 int ff_huffyuv_generate_bits_table(uint32_t *dst, const uint8_t *len_table);
95
96 #endif /* AVCODEC_HUFFYUV_H */