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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; | |
47 | AVCodecContext *avctx; | |
48 | AVFrame *last_frame; | |
49 | AVFrame *current_frame; | |
50 | int first_frame; | |
51 | ||
52 | roq_cell cb2x2[256]; | |
53 | roq_qcell cb4x4[256]; | |
54 | ||
55 | GetByteContext gb; | |
56 | int width, height; | |
57 | ||
58 | /* Encoder only data */ | |
59 | AVLFG 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 | const AVFrame *frame_to_enc; | |
71 | uint8_t *out_buf; | |
72 | struct RoqTempData *tmpData; | |
73 | ||
74 | int quake3_compat; // Quake 3 compatibility option | |
75 | ||
76 | } RoqContext; | |
77 | ||
78 | #define RoQ_INFO 0x1001 | |
79 | #define RoQ_QUAD_CODEBOOK 0x1002 | |
80 | #define RoQ_QUAD_VQ 0x1011 | |
81 | #define RoQ_SOUND_MONO 0x1020 | |
82 | #define RoQ_SOUND_STEREO 0x1021 | |
83 | ||
84 | #define RoQ_ID_MOT 0x00 | |
85 | #define RoQ_ID_FCC 0x01 | |
86 | #define RoQ_ID_SLD 0x02 | |
87 | #define RoQ_ID_CCC 0x03 | |
88 | ||
89 | void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell); | |
90 | void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell); | |
91 | ||
92 | void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay); | |
93 | ||
94 | void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay); | |
95 | ||
96 | #endif /* AVCODEC_ROQVIDEO_H */ |