1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * |
4 | * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
5 | */ |
6 | #ifndef __PVRUSB2_STD_H |
7 | #define __PVRUSB2_STD_H |
8 | |
9 | #include <linux/videodev2.h> |
10 | |
11 | // Convert string describing one or more video standards into a mask of V4L |
12 | // standard bits. Return true if conversion succeeds otherwise return |
13 | // false. String is expected to be of the form: C1-x/y;C2-a/b where C1 and |
14 | // C2 are color system names (e.g. "PAL", "NTSC") and x, y, a, and b are |
15 | // modulation schemes (e.g. "M", "B", "G", etc). |
16 | int pvr2_std_str_to_id(v4l2_std_id *idPtr,const char *bufPtr, |
17 | unsigned int bufSize); |
18 | |
19 | // Convert any arbitrary set of video standard bits into an unambiguous |
20 | // readable string. Return value is the number of bytes consumed in the |
21 | // buffer. The formatted string is of a form that can be parsed by our |
22 | // sibling std_std_to_id() function. |
23 | unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize, |
24 | v4l2_std_id id); |
25 | |
26 | // Create an array of suitable v4l2_standard structures given a bit mask of |
27 | // video standards to support. The array is allocated from the heap, and |
28 | // the number of elements is returned in the first argument. |
29 | struct v4l2_standard *pvr2_std_create_enum(unsigned int *countptr, |
30 | v4l2_std_id id); |
31 | |
32 | // Return mask of which video standard bits are valid |
33 | v4l2_std_id pvr2_std_get_usable(void); |
34 | |
35 | #endif /* __PVRUSB2_STD_H */ |
36 | |