libavcodec: Add missing AVClass pointers
[libav.git] / libavcodec / utvideo.h
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1/*
2 * Common Ut Video header
3 * Copyright (c) 2011 Konstantin Shishkov
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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 * Libav 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 Libav; 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_UTVIDEO_H
23#define AVCODEC_UTVIDEO_H
24
25/**
26 * @file
27 * Common Ut Video header
28 */
29
30#include "libavutil/common.h"
31#include "avcodec.h"
c67b449b 32#include "bswapdsp.h"
512f3ffe 33#include "huffyuvencdsp.h"
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34
35enum {
36 PRED_NONE = 0,
37 PRED_LEFT,
38 PRED_GRADIENT,
39 PRED_MEDIAN,
40};
41
42enum {
43 COMP_NONE = 0,
44 COMP_HUFF,
45};
46
47/*
48 * "Original format" markers.
49 * Based on values gotten from the official VFW encoder.
50 * They are not used during decoding, but they do have
51 * an informative role on seeing what was input
52 * to the encoder.
53 */
54enum {
55 UTVIDEO_RGB = MKTAG(0x00, 0x00, 0x01, 0x18),
56 UTVIDEO_RGBA = MKTAG(0x00, 0x00, 0x02, 0x18),
57 UTVIDEO_420 = MKTAG('Y', 'V', '1', '2'),
58 UTVIDEO_422 = MKTAG('Y', 'U', 'Y', '2'),
59};
60
61/* Mapping of libavcodec prediction modes to Ut Video's */
62extern const int ff_ut_pred_order[5];
63
64/* Order of RGB(A) planes in Ut Video */
65extern const int ff_ut_rgb_order[4];
66
67typedef struct UtvideoContext {
87a814fd 68 const AVClass *class;
1ab5a780 69 AVCodecContext *avctx;
c67b449b 70 BswapDSPContext bdsp;
512f3ffe 71 HuffYUVEncDSPContext hdsp;
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72
73 uint32_t frame_info_size, flags, frame_info;
74 int planes;
75 int slices;
76 int compression;
77 int interlaced;
78 int frame_pred;
79
040405b5 80 int slice_stride;
bbefd27e 81 uint8_t *slice_bits, *slice_buffer[4];
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82 int slice_bits_size;
83} UtvideoContext;
84
85typedef struct HuffEntry {
86 uint8_t sym;
87 uint8_t len;
88 uint32_t code;
89} HuffEntry;
90
91/* Compare huffman tree nodes */
92int ff_ut_huff_cmp_len(const void *a, const void *b);
93
94#endif /* AVCODEC_UTVIDEO_H */