diff options
Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-std.h')
-rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-std.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-std.h b/drivers/media/usb/pvrusb2/pvrusb2-std.h new file mode 100644 index 000000000..b48304f41 --- /dev/null +++ b/drivers/media/usb/pvrusb2/pvrusb2-std.h @@ -0,0 +1,45 @@ +/* + * + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#ifndef __PVRUSB2_STD_H +#define __PVRUSB2_STD_H + +#include <linux/videodev2.h> + +// Convert string describing one or more video standards into a mask of V4L +// standard bits. Return true if conversion succeeds otherwise return +// false. String is expected to be of the form: C1-x/y;C2-a/b where C1 and +// C2 are color system names (e.g. "PAL", "NTSC") and x, y, a, and b are +// modulation schemes (e.g. "M", "B", "G", etc). +int pvr2_std_str_to_id(v4l2_std_id *idPtr,const char *bufPtr, + unsigned int bufSize); + +// Convert any arbitrary set of video standard bits into an unambiguous +// readable string. Return value is the number of bytes consumed in the +// buffer. The formatted string is of a form that can be parsed by our +// sibling std_std_to_id() function. +unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize, + v4l2_std_id id); + +// Create an array of suitable v4l2_standard structures given a bit mask of +// video standards to support. The array is allocated from the heap, and +// the number of elements is returned in the first argument. +struct v4l2_standard *pvr2_std_create_enum(unsigned int *countptr, + v4l2_std_id id); + +// Return mask of which video standard bits are valid +v4l2_std_id pvr2_std_get_usable(void); + +#endif /* __PVRUSB2_STD_H */ |