video_decoder.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:2k
- #ifndef _LINUX_VIDEO_DECODER_H
- #define _LINUX_VIDEO_DECODER_H
- struct video_decoder_capability { /* this name is too long */
- __u32 flags;
- #define VIDEO_DECODER_PAL 1 /* can decode PAL signal */
- #define VIDEO_DECODER_NTSC 2 /* can decode NTSC */
- #define VIDEO_DECODER_SECAM 4 /* can decode SECAM */
- #define VIDEO_DECODER_AUTO 8 /* can autosense norm */
- #define VIDEO_DECODER_CCIR 16 /* CCIR-601 pixel rate (720 pixels per line) instead of square pixel rate */
- int inputs; /* number of inputs */
- int outputs; /* number of outputs */
- };
- /*
- DECODER_GET_STATUS returns the following flags. The only one you need is
- DECODER_STATUS_GOOD, the others are just nice things to know.
- */
- #define DECODER_STATUS_GOOD 1 /* receiving acceptable input */
- #define DECODER_STATUS_COLOR 2 /* receiving color information */
- #define DECODER_STATUS_PAL 4 /* auto detected */
- #define DECODER_STATUS_NTSC 8 /* auto detected */
- #define DECODER_STATUS_SECAM 16 /* auto detected */
- struct video_decoder_init {
- unsigned char len;
- const unsigned char *data;
- };
- #define DECODER_GET_CAPABILITIES _IOR('d', 1, struct video_decoder_capability)
- #define DECODER_GET_STATUS _IOR('d', 2, int)
- #define DECODER_SET_NORM _IOW('d', 3, int)
- #define DECODER_SET_INPUT _IOW('d', 4, int) /* 0 <= input < #inputs */
- #define DECODER_SET_OUTPUT _IOW('d', 5, int) /* 0 <= output < #outputs */
- #define DECODER_ENABLE_OUTPUT _IOW('d', 6, int) /* boolean output enable control */
- #define DECODER_SET_PICTURE _IOW('d', 7, struct video_picture)
- #define DECODER_SET_GPIO _IOW('d', 8, int) /* switch general purpose pin */
- #define DECODER_INIT _IOW('d', 9, struct video_decoder_init) /* init internal registers at once */
- #define DECODER_SET_VBI_BYPASS _IOW('d', 10, int) /* switch vbi bypass */
- #define DECODER_DUMP _IO('d', 192) /* debug hook */
- #endif