1/*
2 * Copyright (C) 2003 Mike Melanson
3 * Copyright (C) 2003 Dr. Tim Ferguson
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_ROQVIDEO_H
23#define AVCODEC_ROQVIDEO_H
24
25#include "libavutil/lfg.h"
26#include "avcodec.h"
27#include "dsputil.h"
28
29typedef struct {
30    unsigned char y[4];
31    unsigned char u, v;
32} roq_cell;
33
34typedef struct {
35    int idx[4];
36} roq_qcell;
37
38typedef struct {
39    int d[2];
40} motion_vect;
41
42struct RoqTempData;
43
44typedef struct RoqContext {
45
46    AVCodecContext *avctx;
47    DSPContext dsp;
48    AVFrame frames[2];
49    AVFrame *last_frame;
50    AVFrame *current_frame;
51    int first_frame;
52
53    roq_cell cb2x2[256];
54    roq_qcell cb4x4[256];
55
56    const unsigned char *buf;
57    int size;
58    int width, height;
59
60    /* Encoder only data */
61    AVLFG randctx;
62    uint64_t lambda;
63
64    motion_vect *this_motion4;
65    motion_vect *last_motion4;
66
67    motion_vect *this_motion8;
68    motion_vect *last_motion8;
69
70    unsigned int framesSinceKeyframe;
71
72    AVFrame *frame_to_enc;
73    uint8_t *out_buf;
74    struct RoqTempData *tmpData;
75} RoqContext;
76
77#define RoQ_INFO              0x1001
78#define RoQ_QUAD_CODEBOOK     0x1002
79#define RoQ_QUAD_VQ           0x1011
80#define RoQ_SOUND_MONO        0x1020
81#define RoQ_SOUND_STEREO      0x1021
82
83#define RoQ_ID_MOT              0x00
84#define RoQ_ID_FCC              0x01
85#define RoQ_ID_SLD              0x02
86#define RoQ_ID_CCC              0x03
87
88void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell);
89void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell);
90
91void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay);
92
93void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay);
94
95#endif /* AVCODEC_ROQVIDEO_H */
96