FFmpeg
roqvideo.h
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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 "bytestream.h"
28 
29 typedef struct roq_cell {
30  unsigned char y[4];
31  unsigned char u, v;
32 } roq_cell;
33 
34 typedef struct roq_qcell {
35  int idx[4];
36 } roq_qcell;
37 
38 typedef struct motion_vect {
39  int d[2];
40 } motion_vect;
41 
42 struct RoqTempData;
43 
44 typedef struct RoqContext {
45 
46  const AVClass *class;
51 
52  roq_cell cb2x2[256];
53  roq_qcell cb4x4[256];
54 
55  int width, height;
56 
57  /* Encoder only data */
59  uint64_t lambda;
60 
63 
66 
67  unsigned int framesSinceKeyframe;
68 
71  struct RoqTempData *tmpData;
72 
73  int quake3_compat; // Quake 3 compatibility option
74 
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 
88 void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell);
89 void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell);
90 
91 void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay);
92 
93 void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay);
94 
95 #endif /* AVCODEC_ROQVIDEO_H */
Context structure for the Lagged Fibonacci PRNG.
Definition: lfg.h:33
This structure describes decoded (raw) audio or video data.
Definition: frame.h:308
motion_vect * this_motion4
Definition: roqvideo.h:61
const AVFrame * frame_to_enc
Definition: roqvideo.h:69
void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell)
Definition: roqvideo.c:41
motion_vect * this_motion8
Definition: roqvideo.h:64
AVFrame * current_frame
Definition: roqvideo.h:49
motion_vect * last_motion4
Definition: roqvideo.h:62
int width
Definition: roqvideo.h:55
AVLFG randctx
Definition: roqvideo.h:58
uint8_t
unsigned int framesSinceKeyframe
Definition: roqvideo.h:67
#define height
void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell)
Definition: roqvideo.c:71
unsigned char u
Definition: roqvideo.h:31
void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay)
Definition: roqvideo.c:133
In the ELBG jargon, a cell is the set of points that are closest to a codebook entry.
Definition: elbg.c:39
struct RoqTempData * tmpData
Definition: roqvideo.h:71
int first_frame
Definition: roqvideo.h:50
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:526
unsigned char y[4]
Definition: roqvideo.h:30
uint64_t lambda
Definition: roqvideo.h:59
Describe the class of an AVClass context structure.
Definition: log.h:67
int quake3_compat
Definition: roqvideo.h:73
AVCodecContext * avctx
Definition: roqvideo.h:47
uint8_t * out_buf
Definition: roqvideo.h:70
void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay)
Definition: roqvideo.c:139
motion_vect * last_motion8
Definition: roqvideo.h:65
AVFrame * last_frame
Definition: roqvideo.h:48
unsigned char v
Definition: roqvideo.h:31