#define VIDEO_PALETTE_PLANAR 13 /* start of planar entries */
#define VIDEO_PALETTE_COMPONENT 7 /* start of component entries */
};
struct video_audio
{
int audio; /* Audio channel */
__u16 volume; /* If settable */
__u16 bass, treble;
__u32 flags;
#define VIDEO_AUDIO_MUTE 1
#define VIDEO_AUDIO_MUTABLE 2
#define VIDEO_AUDIO_VOLUME 4
#define VIDEO_AUDIO_BASS 8
#define VIDEO_AUDIO_TREBLE 16
char name[16];
#define VIDEO_SOUND_MONO 1
#define VIDEO_SOUND_STEREO 2
#define VIDEO_SOUND_LANG1 4
#define VIDEO_SOUND_LANG2 8
__u16 mode;
__u16 balance; /* Stereo balance */
__u16 step; /* Step actual volume uses */
};
struct video_clip
{
__s32 x,y;
__s32 width, height;
struct video_clip *next; /* For user use/driver use only */
};
struct video_window
{
__u32 x,y; /* Position of window */
__u32 width,height; /* Its size */
__u32 chromakey;
__u32 flags;
struct video_clip *clips; /* Set only */
int clipcount;
#define VIDEO_WINDOW_INTERLACE 1
#define VIDEO_WINDOW_CHROMAKEY 16 /* Overlay by chromakey */
#define VIDEO_CLIP_BITMAP -1
/* bitmap is 1024x625, a '1' bit represents a clipped pixel */
#define VIDEO_CLIPMAP_SIZE (128 * 625)
};
struct video_capture
{
__u32 x,y; /* Offsets into image */
__u32 width, height; /* Area to capture */
__u16 decimation; /* Decimation divder */
__u16 flags; /* Flags for capture */
#define VIDEO_CAPTURE_ODD 0 /* Temporal */
#define VIDEO_CAPTURE_EVEN 1
};
struct video_buffer
{
void *base;
int height,width;
int depth;
int bytesperline;
};
struct video_mmap
{
unsigned int frame; /* Frame (0 - n) for double buffer */
int height,width;
unsigned int format; /* should be VIDEO_PALETTE_* */
};
struct video_key
{
__u8 key[8];
__u32 flags;
};
#define VIDEO_MAX_FRAME 32
struct video_mbuf
{
int size; /* Total memory to map */
int frames; /* Frames */
int offsets[VIDEO_MAX_FRAME];
};
#define VIDEO_NO_UNIT (-1)
struct video_unit
{
int video; /* Video minor */
int vbi; /* VBI minor */
int radio; /* Radio minor */
int audio; /* Audio minor */
int teletext; /* Teletext minor */
};
struct vbi_format {
__u32 sampling_rate; /* in Hz */
__u32 samples_per_line;
__u32 sample_format; /* VIDEO_PALETTE_RAW only (1 byte) */
__s32 start[2]; /* starting line for each frame */
__u32 count[2]; /* count of lines for each frame */
__u32 flags;
#define VBI_UNSYNC 1 /* can distingues between top/bottom field */
#define VBI_INTERLACED 2 /* lines are interlaced */
};
/* video_info is biased towards hardware mpeg encode/decode */
/* but it could apply generically to any hardware compressor/decompressor */
struct video_info
{
__u32 frame_count; /* frames output since decode/encode began */
__u32 h_size; /* current unscaled horizontal size */
__u32 v_size; /* current unscaled veritcal size */
__u32 smpte_timecode; /* current SMPTE timecode (for current GOP) */
__u32 picture_type; /* current picture type */
__u32 temporal_reference; /* current temporal reference */
__u8 user_data[256]; /* user data last found in compressed stream */
/* user_data[0] contains user data flags, user_data[1] has count */
};
/* generic structure for setting playback modes */
struct video_play_mode
{
int mode;
int p1;
int p2;
};
/* for loading microcode / fpga programming */
struct video_code
{
char loadwhat[16]; /* name or tag of file being passed */
int datasize;
__u8 *data;
};
#define VIDIOCGCAP _IOR('v',1,struct video_capability) /* Get capabilities */
#define VIDIOCGCHAN _IOWR('v',2,struct video_channel) /* Get channel info (sources) */
#define VIDIOCSCHAN _IOW('v',3,struct video_channel) /* Set channel */
#define VIDIOCGTUNER _IOWR('v',4,struct video_tuner) /* Get tuner abilities */
#define VIDIOCSTUNER _IOW('v',5,struct video_tuner) /* Tune the tuner for the current channel */
#define VIDIOCGPICT _IOR('v',6,struct video_picture) /* Get picture properties */
#define VIDIOCSPICT _IOW('v',7,struct video_picture) /* Set picture properties */
#define VIDIOCCAPTURE _IOW('v',8,int) /* Start, end capture */
#define VIDIOCGWIN _IOR('v',9, struct video_window) /* Get the video overlay window */
#define VIDIOCSWIN _IOW('v',10, struct video_window) /* Set the video overlay window - passes clip list for hardware smarts , chromakey etc */
#define VIDIOCGFBUF _IOR('v',11, struct video_buffer) /* Get frame buffer */
#define VIDIOCSFBUF _IOW('v',12, struct video_buffer) /* Set frame buffer - root only */
#define VIDIOCKEY _IOR('v',13, struct video_key) /* Video key event - to dev 255 is to all - cuts capture on all DMA windows with this key (0xFFFFFFFF == all) */
#define VIDIOCGFREQ _IOR('v',14, unsigned long) /* Set tuner */
#define VIDIOCSFREQ _IOW('v',15, unsigned long) /* Set tuner */
#define VIDIOCGAUDIO _IOR('v',16, struct video_audio) /* Get audio info */
