1//  Copyright (c) 2011 FFmpegSource Project
2//
3//  Permission is hereby granted, free of charge, to any person obtaining a copy
4//  of this software and associated documentation files (the "Software"), to deal
5//  in the Software without restriction, including without limitation the rights
6//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7//  copies of the Software, and to permit persons to whom the Software is
8//  furnished to do so, subject to the following conditions:
9//
10//  The above copyright notice and this permission notice shall be included in
11//  all copies or substantial portions of the Software.
12//
13//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19//  THE SOFTWARE.
20
21/* these are defines/functions that are used and were changed in the switch to 2.6
22 * and are needed to maintain full compatility with 2.5 */
23
24enum {
25  AVS_CS_YV12_25 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR,  // y-v-u, planar
26  AVS_CS_I420_25 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR,  // y-u-v, planar
27};
28
29AVSC_INLINE int avs_get_height_p_25(const AVS_VideoFrame * p, int plane) {
30    switch (plane)
31    {
32        case AVS_PLANAR_U: case AVS_PLANAR_V:
33            if (p->pitchUV)
34                return p->height>>1;
35            return 0;
36    }
37    return p->height;}
38
39AVSC_INLINE int avs_get_row_size_p_25(const AVS_VideoFrame * p, int plane) {
40    int r;
41    switch (plane)
42    {
43    case AVS_PLANAR_U: case AVS_PLANAR_V:
44        if (p->pitchUV)
45            return p->row_size>>1;
46        else
47            return 0;
48    case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
49        if (p->pitchUV)
50        {
51            r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
52            if (r < p->pitchUV)
53                return r;
54            return p->row_size>>1;
55        }
56        else
57            return 0;
58    case AVS_PLANAR_Y_ALIGNED:
59        r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
60        if (r <= p->pitch)
61            return r;
62        return p->row_size;
63    }
64    return p->row_size;
65}
66
67AVSC_INLINE int avs_is_yv12_25(const AVS_VideoInfo * p)
68    { return ((p->pixel_type & AVS_CS_YV12_25) == AVS_CS_YV12_25)||((p->pixel_type & AVS_CS_I420_25) == AVS_CS_I420_25); }
69