xref: /third_party/ffmpeg/libavcodec/utvideo.h (revision cabdff1a) 
1/*
2 * Common Ut Video header
3 * Copyright (c) 2011 Konstantin Shishkov
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_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"
32#include "bswapdsp.h"
33#include "utvideodsp.h"
34#include "lossless_videodsp.h"
35#include "lossless_videoencdsp.h"
36
37enum {
38    PRED_NONE = 0,
39    PRED_LEFT,
40    PRED_GRADIENT,
41    PRED_MEDIAN,
42};
43
44enum {
45    COMP_NONE = 0,
46    COMP_HUFF,
47};
48
49/*
50 * "Original format" markers.
51 * Based on values gotten from the official VFW encoder.
52 * They are not used during decoding, but they do have
53 * an informative role on seeing what was input
54 * to the encoder.
55 */
56enum {
57    UTVIDEO_RGB  = MKTAG(0x00, 0x00, 0x01, 0x18),
58    UTVIDEO_RGBA = MKTAG(0x00, 0x00, 0x02, 0x18),
59    UTVIDEO_420  = MKTAG('Y', 'V', '1', '2'),
60    UTVIDEO_422  = MKTAG('Y', 'U', 'Y', '2'),
61    UTVIDEO_444  = MKTAG('Y', 'V', '2', '4'),
62};
63
64typedef struct UtvideoContext {
65    const AVClass *class;
66    AVCodecContext *avctx;
67    UTVideoDSPContext utdsp;
68    BswapDSPContext bdsp;
69    LLVidDSPContext llviddsp;
70    LLVidEncDSPContext llvidencdsp;
71
72    uint32_t frame_info_size, flags, frame_info, offset;
73    int      planes;
74    int      slices;
75    int      compression;
76    int      interlaced;
77    int      frame_pred;
78    int      pro;
79    int      pack;
80
81    ptrdiff_t slice_stride;
82    uint8_t *slice_bits, *slice_buffer[4];
83    int      slice_bits_size;
84
85    const uint8_t *packed_stream[4][256];
86    size_t packed_stream_size[4][256];
87    const uint8_t *control_stream[4][256];
88    size_t control_stream_size[4][256];
89} UtvideoContext;
90
91#endif /* AVCODEC_UTVIDEO_H */
92