1 #ifndef _LINUX_VIDEO_DECODER_H
2 #define _LINUX_VIDEO_DECODER_H
4 #include <linux/types.h>
6 #define HAVE_VIDEO_DECODER 1
8 struct video_decoder_capability
{ /* this name is too long */
10 #define VIDEO_DECODER_PAL 1 /* can decode PAL signal */
11 #define VIDEO_DECODER_NTSC 2 /* can decode NTSC */
12 #define VIDEO_DECODER_SECAM 4 /* can decode SECAM */
13 #define VIDEO_DECODER_AUTO 8 /* can autosense norm */
14 #define VIDEO_DECODER_CCIR 16 /* CCIR-601 pixel rate (720 pixels per line) instead of square pixel rate */
15 int inputs
; /* number of inputs */
16 int outputs
; /* number of outputs */
20 DECODER_GET_STATUS returns the following flags. The only one you need is
21 DECODER_STATUS_GOOD, the others are just nice things to know.
23 #define DECODER_STATUS_GOOD 1 /* receiving acceptable input */
24 #define DECODER_STATUS_COLOR 2 /* receiving color information */
25 #define DECODER_STATUS_PAL 4 /* auto detected */
26 #define DECODER_STATUS_NTSC 8 /* auto detected */
27 #define DECODER_STATUS_SECAM 16 /* auto detected */
29 struct video_decoder_init
{
31 const unsigned char *data
;
34 #define DECODER_GET_CAPABILITIES _IOR('d', 1, struct video_decoder_capability)
35 #define DECODER_GET_STATUS _IOR('d', 2, int)
36 #define DECODER_SET_NORM _IOW('d', 3, int)
37 #define DECODER_SET_INPUT _IOW('d', 4, int) /* 0 <= input < #inputs */
38 #define DECODER_SET_OUTPUT _IOW('d', 5, int) /* 0 <= output < #outputs */
39 #define DECODER_ENABLE_OUTPUT _IOW('d', 6, int) /* boolean output enable control */
40 #define DECODER_SET_PICTURE _IOW('d', 7, struct video_picture)
41 #define DECODER_SET_GPIO _IOW('d', 8, int) /* switch general purpose pin */
42 #define DECODER_INIT _IOW('d', 9, struct video_decoder_init) /* init internal registers at once */
43 #define DECODER_SET_VBI_BYPASS _IOW('d', 10, int) /* switch vbi bypass */
45 #define DECODER_DUMP _IO('d', 192) /* debug hook */
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