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 /**
23 * @file
24 * id RoQ Video common functions based on work by Dr. Tim Ferguson
25 */
26
29
31 int outstride, int instride, int sz)
32 {
33 int rows = sz;
34 while(rows--) {
35 memcpy(out, in, sz);
36 out += outstride;
37 in += instride;
38 }
39 }
40
42 {
43 unsigned char *bptr;
45
47 boffs = y*stride + x;
48
50 bptr[0 ] = cell->
y[0];
51 bptr[1 ] = cell->
y[1];
53 bptr[stride+1] = cell->
y[3];
54
56 boffs = y*stride + x;
57
59 bptr[0 ] =
60 bptr[1 ] =
62 bptr[stride+1] = cell->
u;
63
65 bptr[0 ] =
66 bptr[1 ] =
68 bptr[stride+1] = cell->
v;
69 }
70
72 {
73 unsigned char *bptr;
75
77 boffs = y*stride + x;
78
80 bptr[ 0] = bptr[ 1] = bptr[
stride ] = bptr[stride +1] = cell->
y[0];
81 bptr[ 2] = bptr[ 3] = bptr[stride +2] = bptr[stride +3] = cell->
y[1];
82 bptr[stride*2 ] = bptr[stride*2+1] = bptr[stride*3 ] = bptr[stride*3+1] = cell->
y[2];
83 bptr[stride*2+2] = bptr[stride*2+3] = bptr[stride*3+2] = bptr[stride*3+3] = cell->
y[3];
84
86 boffs = y*stride + x;
87
89 bptr[ 0] = bptr[ 1] = bptr[
stride ] = bptr[stride +1] =
90 bptr[ 2] = bptr[ 3] = bptr[stride +2] = bptr[stride +3] =
91 bptr[stride*2 ] = bptr[stride*2+1] = bptr[stride*3 ] = bptr[stride*3+1] =
92 bptr[stride*2+2] = bptr[stride*2+3] = bptr[stride*3+2] = bptr[stride*3+3] = cell->
u;
93
95 bptr[ 0] = bptr[ 1] = bptr[
stride ] = bptr[stride +1] =
96 bptr[ 2] = bptr[ 3] = bptr[stride +2] = bptr[stride +3] =
97 bptr[stride*2 ] = bptr[stride*2+1] = bptr[stride*3 ] = bptr[stride*3+1] =
98 bptr[stride*2+2] = bptr[stride*2+3] = bptr[stride*3+2] = bptr[stride*3+3] = cell->
v;
99 }
100
101
103 int deltay, int sz)
104 {
105 int mx, my, cp;
106
107 mx = x + deltax;
108 my = y + deltay;
109
110 /* check MV against frame boundaries */
111 if ((mx < 0) || (mx > ri->
width - sz) ||
112 (my < 0) || (my > ri->
height - sz)) {
115 return;
116 }
117
120 return;
121 }
122
123 for(cp = 0; cp < 3; cp++) {
128 outstride, instride, sz);
129 }
130 }
131
132
134 int deltax, int deltay)
135 {
137 }
138
140 int deltax, int deltay)
141 {
143 }