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1 | /* |
2 | * | |
d855497e MI |
3 | * |
4 | * Copyright (C) 2005 Mike Isely <isely@pobox.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
d855497e MI |
15 | */ |
16 | #ifndef __PVRUSB2_STD_H | |
17 | #define __PVRUSB2_STD_H | |
18 | ||
19 | #include <linux/videodev2.h> | |
20 | ||
21 | // Convert string describing one or more video standards into a mask of V4L | |
22 | // standard bits. Return true if conversion succeeds otherwise return | |
23 | // false. String is expected to be of the form: C1-x/y;C2-a/b where C1 and | |
24 | // C2 are color system names (e.g. "PAL", "NTSC") and x, y, a, and b are | |
25 | // modulation schemes (e.g. "M", "B", "G", etc). | |
26 | int pvr2_std_str_to_id(v4l2_std_id *idPtr,const char *bufPtr, | |
27 | unsigned int bufSize); | |
28 | ||
29 | // Convert any arbitrary set of video standard bits into an unambiguous | |
30 | // readable string. Return value is the number of bytes consumed in the | |
31 | // buffer. The formatted string is of a form that can be parsed by our | |
32 | // sibling std_std_to_id() function. | |
33 | unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize, | |
34 | v4l2_std_id id); | |
35 | ||
36 | // Create an array of suitable v4l2_standard structures given a bit mask of | |
37 | // video standards to support. The array is allocated from the heap, and | |
38 | // the number of elements is returned in the first argument. | |
39 | struct v4l2_standard *pvr2_std_create_enum(unsigned int *countptr, | |
40 | v4l2_std_id id); | |
41 | ||
42 | // Return mask of which video standard bits are valid | |
43 | v4l2_std_id pvr2_std_get_usable(void); | |
44 | ||
45 | #endif /* __PVRUSB2_STD_H */ |