202f32a39471664c0dc50c71127daf9d245fdc21
[libav.git] / libavcodec / roqvideo.h
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 "avcodec.h"
26 #include "dsputil.h"
27 #include "random.h"
28
29 typedef struct {
30 unsigned char y[4];
31 unsigned char u, v;
32 } roq_cell;
33
34 typedef struct {
35 int idx[4];
36 } roq_qcell;
37
38 typedef struct {
39 int d[2];
40 } motion_vect;
41
42 typedef struct RoqContext {
43
44 AVCodecContext *avctx;
45 DSPContext dsp;
46 AVFrame frames[2];
47 AVFrame *last_frame;
48 AVFrame *current_frame;
49 int first_frame;
50
51 roq_cell cb2x2[256];
52 roq_qcell cb4x4[256];
53
54 unsigned char *buf;
55 int size;
56 int width, height;
57
58 /* Encoder only data */
59 AVRandomState randctx;
60 uint64_t lambda;
61
62 motion_vect *this_motion4;
63 motion_vect *last_motion4;
64
65 motion_vect *this_motion8;
66 motion_vect *last_motion8;
67
68 unsigned int framesSinceKeyframe;
69
70 AVFrame *frame_to_enc;
71 uint8_t *out_buf;
72 } RoqContext;
73
74 #define RoQ_INFO 0x1001
75 #define RoQ_QUAD_CODEBOOK 0x1002
76 #define RoQ_QUAD_VQ 0x1011
77 #define RoQ_SOUND_MONO 0x1020
78 #define RoQ_SOUND_STEREO 0x1021
79
80 #define RoQ_ID_MOT 0x00
81 #define RoQ_ID_FCC 0x01
82 #define RoQ_ID_SLD 0x02
83 #define RoQ_ID_CCC 0x03
84
85 void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell);
86 void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell);
87
88 void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay);
89
90 void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay);
91
92 #endif // AVCODEC_ROQVIDEO_H