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pvrusb2-std.h
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1 /*
2  *
3  *
4  * Copyright (C) 2005 Mike Isely <[email protected]>
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  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  *
19  */
20 #ifndef __PVRUSB2_STD_H
21 #define __PVRUSB2_STD_H
22 
23 #include <linux/videodev2.h>
24 
25 // Convert string describing one or more video standards into a mask of V4L
26 // standard bits. Return true if conversion succeeds otherwise return
27 // false. String is expected to be of the form: C1-x/y;C2-a/b where C1 and
28 // C2 are color system names (e.g. "PAL", "NTSC") and x, y, a, and b are
29 // modulation schemes (e.g. "M", "B", "G", etc).
30 int pvr2_std_str_to_id(v4l2_std_id *idPtr,const char *bufPtr,
31  unsigned int bufSize);
32 
33 // Convert any arbitrary set of video standard bits into an unambiguous
34 // readable string. Return value is the number of bytes consumed in the
35 // buffer. The formatted string is of a form that can be parsed by our
36 // sibling std_std_to_id() function.
37 unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize,
38  v4l2_std_id id);
39 
40 // Create an array of suitable v4l2_standard structures given a bit mask of
41 // video standards to support. The array is allocated from the heap, and
42 // the number of elements is returned in the first argument.
43 struct v4l2_standard *pvr2_std_create_enum(unsigned int *countptr,
44  v4l2_std_id id);
45 
46 // Return mask of which video standard bits are valid
48 
49 #endif /* __PVRUSB2_STD_H */
50 
51 /*
52  Stuff for Emacs to see, in order to encourage consistent editing style:
53  *** Local Variables: ***
54  *** mode: c ***
55  *** fill-column: 75 ***
56  *** tab-width: 8 ***
57  *** c-basic-offset: 8 ***
58  *** End: ***
59  */