09ed3c6acfeb5d2b30cbcb45c369e42924545b4f
[libav.git] / libavcodec / roqvideo.h
1 /*
2 * Copyright (C) 2003 the ffmpeg project
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 */
21
22 #include "avcodec.h"
23 #include "dsputil.h"
24
25 typedef struct {
26 unsigned char y[4];
27 unsigned char u, v;
28 } roq_cell;
29
30 typedef struct {
31 int idx[4];
32 } roq_qcell;
33
34 typedef struct RoqContext {
35
36 AVCodecContext *avctx;
37 DSPContext dsp;
38 AVFrame frames[2];
39 AVFrame *last_frame;
40 AVFrame *current_frame;
41 int y_stride;
42 int c_stride;
43
44 roq_cell cb2x2[256];
45 roq_qcell cb4x4[256];
46
47 unsigned char *buf;
48 int size;
49
50 } RoqContext;
51
52 #define RoQ_INFO 0x1001
53 #define RoQ_QUAD_CODEBOOK 0x1002
54 #define RoQ_QUAD_VQ 0x1011
55 #define RoQ_SOUND_MONO 0x1020
56 #define RoQ_SOUND_STEREO 0x1021
57
58 #define RoQ_ID_MOT 0x00
59 #define RoQ_ID_FCC 0x01
60 #define RoQ_ID_SLD 0x02
61 #define RoQ_ID_CCC 0x03
62
63 void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell);
64 void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell);
65
66 void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay);
67
68 void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay);