videodev2.h
上传用户:aoeyumen
上传日期:2007-01-06
资源大小:3329k
文件大小:32k
- /*
- * Video for Linux Two
- *
- * Header file for V4L2 drivers and applications.
- *
- * Author: Bill Dirks <bdirks@pacbell.net>
- */
- #ifndef __LINUX_VIDEODEV_H
- #define __LINUX_VIDEODEV_H
- #define V4L2_MAJOR_VERSION 0
- #define V4L2_MINOR_VERSION 19
- /*
- * M I S C E L L A N E O U S
- */
- /* Four-character-code (FOURCC) */
- #define fourcc(a,b,c,d)
- (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
- /* Open flag for non-capturing opens on capture devices */
- #define O_NONCAP O_TRUNC
- #define O_NOIO O_TRUNC
- /*
- * D R I V E R C A P A B I L I T I E S
- */
- struct v4l2_capability
- {
- char name[32]; /* Descriptive, and unique */
- int type; /* Device type, see below */
- int inputs; /* Num video inputs */
- int outputs; /* Num video outputs */
- int audios; /* Num audio devices */
- int maxwidth;
- int maxheight;
- int minwidth;
- int minheight;
- int maxframerate;
- __u32 flags; /* Feature flags, see below */
- __u32 reserved[4];
- };
- /* Values for 'type' field */
- #define V4L2_TYPE_CAPTURE 0 /* Is a video capture device */
- #define V4L2_TYPE_CODEC 1 /* Is a CODEC device */
- #define V4L2_TYPE_OUTPUT 2 /* Is a video output device */
- #define V4L2_TYPE_FX 3 /* Is a video effects device */
- #define V4L2_TYPE_VBI 4 /* Is a VBI capture device */
- #define V4L2_TYPE_VTR 5 /* Is a tape recorder controller */
- #define V4L2_TYPE_VTX 6 /* Is a teletext device */
- #define V4L2_TYPE_RADIO 7 /* Is a radio device */
- #define V4L2_TYPE_PRIVATE 1000 /* Start of driver private types */
- /* Flags for 'flags' field */
- #define V4L2_FLAG_READ 0x00001 /* Can capture via read() call */
- #define V4L2_FLAG_WRITE 0x00002 /* Can accept data via write() */
- #define V4L2_FLAG_STREAMING 0x00004 /* Can capture streaming video */
- #define V4L2_FLAG_PREVIEW 0x00008 /* Can do automatic preview */
- #define V4L2_FLAG_SELECT 0x00010 /* Supports the select() call */
- #define V4L2_FLAG_TUNER 0x00020 /* Can tune */
- #define V4L2_FLAG_MONOCHROME 0x00040 /* Monochrome only */
- #define V4L2_FLAG_DATA_SERVICE 0x00080 /* Has a related data service dev. */
- /*
- * V I D E O I M A G E F O R M A T
- */
- struct v4l2_format
- {
- __u32 width;
- __u32 height;
- __u32 depth;
- __u32 pixelformat;
- __u32 flags;
- __u32 bytesperline; /* only used when there are pad bytes */
- __u32 sizeimage;
- __u32 priv; /* private data, depends on pixelformat */
- };
- /* Pixel format FOURCC depth Description */
- #define V4L2_PIX_FMT_RGB332 fourcc('R','G','B','1') /* 8 RGB-3-3-2 */
- #define V4L2_PIX_FMT_RGB555 fourcc('R','G','B','O') /* 16 RGB-5-5-5 */
- #define V4L2_PIX_FMT_RGB565 fourcc('R','G','B','P') /* 16 RGB-5-6-5 */
- #define V4L2_PIX_FMT_BGR24 fourcc('B','G','R','3') /* 24 BGR-8-8-8 */
- #define V4L2_PIX_FMT_RGB24 fourcc('R','G','B','3') /* 24 RGB-8-8-8 */
- #define V4L2_PIX_FMT_BGR32 fourcc('B','G','R','4') /* 32 BGR-8-8-8-8 */
- #define V4L2_PIX_FMT_RGB32 fourcc('R','G','B','4') /* 32 RGB-8-8-8-8 */
- #define V4L2_PIX_FMT_GREY fourcc('G','R','E','Y') /* 8 Greyscale */
- #define V4L2_PIX_FMT_YVU410 fourcc('Y','V','U','9') /* 9 YVU 4:1:0 */
- #define V4L2_PIX_FMT_YVU420 fourcc('Y','V','1','2') /* 12 YVU 4:2:0 */
- #define V4L2_PIX_FMT_YUYV fourcc('Y','U','Y','V') /* 16 YUV 4:2:2 */
- #define V4L2_PIX_FMT_UYVY fourcc('U','Y','V','Y') /* 16 YUV 4:2:2 */
- #define V4L2_PIX_FMT_YVU422P fourcc('4','2','2','P') /* 16 YVU422 planar */
- #define V4L2_PIX_FMT_YVU411P fourcc('4','1','1','P') /* 16 YVU411 planar */
- /* The following formats are not defined in the V4L2 specification */
- #define V4L2_PIX_FMT_YUV410 fourcc('Y','U','V','9') /* 9 YUV 4:1:0 */
- #define V4L2_PIX_FMT_YUV420 fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */
- #define V4L2_PIX_FMT_YYUV fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */
- #define V4L2_PIX_FMT_HI240 fourcc('H','I','2','4') /* 8 8-bit color */
- /* Flags */
- #define V4L2_FMT_FLAG_COMPRESSED 0x0001 /* Compressed format */
- #define V4L2_FMT_FLAG_BYTESPERLINE 0x0002 /* bytesperline field valid */
- #define V4L2_FMT_FLAG_INTERLACED 0x0004 /* Image is interlaced */
- #define V4L2_FMT_FLAG_TOPFIELD 0x0008 /* is a top field only */
- #define V4L2_FMT_FLAG_BOTFIELD 0x0010 /* is a bottom field only */
- #define V4L2_FMT_FLAG_ODDFIELD FMT_FLAG_TOPFIELD
- #define V4L2_FMT_FLAG_EVENFIELD FMT_FLAG_BOTFIELD
- #define V4L2_FMT_FLAG_COMBINED FMT_FLAG_INTERLACED
- #define V4L2_FMT_CS_field 0xF000 /* Color space field mask */
- #define V4L2_FMT_CS_601YUV 0x1000 /* ITU YCrCb color space */
- #define V4L2_FMT_FLAG_SWCONVERSION 0x0800 /* used only in format enum. */
- /* SWCONVERSION indicates the format is not natively supported by the */
- /* driver and the driver uses software conversion to support it */
- /*
- * F O R M A T E N U M E R A T I O N
- */
- struct v4l2_fmtdesc
- {
- int index; /* Format number */
- char description[32]; /* Description string */
- __u32 pixelformat; /* Format fourcc */
- __u32 flags; /* Format flags */
- __u32 depth; /* Bits per pixel */
- __u32 reserved[2];
- };
- struct v4l2_cvtdesc
- {
- int index;
- struct
- {
- __u32 pixelformat;
- __u32 flags;
- __u32 depth;
- __u32 reserved[2];
- } in, out;
- };
- struct v4l2_fxdesc
- {
- int index;
- char name[32];
- __u32 flags;
- __u32 inputs;
- __u32 controls;
- __u32 reserved[2];
- };
- /*
- * T I M E C O D E
- */
- struct v4l2_timecode
- {
- __u8 frames;
- __u8 seconds;
- __u8 minutes;
- __u8 hours;
- __u8 userbits[4];
- __u32 flags;
- __u32 type;
- };
- /* Type */
- #define V4L2_TC_TYPE_24FPS 1
- #define V4L2_TC_TYPE_25FPS 2
- #define V4L2_TC_TYPE_30FPS 3
- #define V4L2_TC_TYPE_50FPS 4
- #define V4L2_TC_TYPE_60FPS 5
- /* Flags */
- #define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
- #define V4L2_TC_FLAG_COLORFRAME 0x0002
- #define V4L2_TC_USERBITS_field 0x000C
- #define V4L2_TC_USERBITS_USERDEFINED 0x0000
- #define V4L2_TC_USERBITS_8BITCHARS 0x0008
- /* The above is based on SMPTE timecodes */
- /*
- * C O M P R E S S I O N P A R A M E T E R S
- */
- struct v4l2_compression
- {
- int quality;
- int keyframerate;
- int pframerate;
- __u32 reserved[5];
- };
- /*
- * M E M O R Y - M A P P I N G B U F F E R S
- */
- struct v4l2_requestbuffers
- {
- int count;
- __u32 type;
- __u32 reserved[2];
- };
- struct v4l2_buffer
- {
- int index;
- __u32 type;
- __u32 offset;
- __u32 length;
- __u32 bytesused;
- __u32 flags;
- struct timeval timestamp;
- struct v4l2_timecode timecode;
- __u32 reserved[4];
- };
- /* Buffer type codes and flags for 'type' field */
- #define V4L2_BUF_TYPE_field 0x00001FFF /* Type field mask */
- #define V4L2_BUF_TYPE_CAPTURE 0x00000001
- #define V4L2_BUF_TYPE_CODECIN 0x00000002
- #define V4L2_BUF_TYPE_CODECOUT 0x00000003
- #define V4L2_BUF_TYPE_EFFECTSIN 0x00000004
- #define V4L2_BUF_TYPE_EFFECTSIN2 0x00000005
- #define V4L2_BUF_TYPE_EFFECTSOUT 0x00000006
- #define V4L2_BUF_TYPE_VIDEOOUT 0x00000007
- #define V4L2_BUF_TYPE_FXCONTROL 0x00000008
- /* Starting value of driver private buffer types */
- #define V4L2_BUF_TYPE_PRIVATE 0x00001000
- #define V4L2_BUF_ATTR_DEVICEMEM 0x00010000 /* Buffer is on device (flag) */
- /* Flags used only in VIDIOC_REQBUFS */
- #define V4L2_BUF_REQ_field 0xF0000000
- #define V4L2_BUF_REQ_CONTIG 0x10000000 /* Map all buffers in one
- contiguous mmap(). This flag
- only used in VIDIOC_REQBUFS */
- /* Flags for 'flags' field */
- #define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */
- #define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */
- #define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */
- #define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */
- #define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */
- #define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */
- #define V4L2_BUF_FLAG_TOPFIELD 0x0040 /* Image is a top field only */
- #define V4L2_BUF_FLAG_BOTFIELD 0x0080 /* Image is a bottom field only */
- #define V4L2_BUF_FLAG_ODDFIELD V4L2_BUF_FLAG_TOPFIELD
- #define V4L2_BUF_FLAG_EVENFIELD V4L2_BUF_FLAG_BOTFIELD
- /*
- * O V E R L A Y P R E V I E W
- */
- struct v4l2_framebuffer
- {
- __u32 capability;
- __u32 flags;
- void *base[3];
- struct v4l2_format fmt;
- };
- /* Flags for the 'capability' field. Read only */
- #define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
- #define V4L2_FBUF_CAP_CHROMAKEY 0x0002
- #define V4L2_FBUF_CAP_CLIPPING 0x0004
- #define V4L2_FBUF_CAP_SCALEUP 0x0008
- #define V4L2_FBUF_CAP_SCALEDOWN 0x0010
- #define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0020
- /* Flags for the 'flags' field. */
- #define V4L2_FBUF_FLAG_PRIMARY 0x0001
- #define V4L2_FBUF_FLAG_OVERLAY 0x0002
- #define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
- struct v4l2_clip
- {
- struct v4l2_clip *next;
- int x;
- int y;
- int width;
- int height;
- };
- struct v4l2_window
- {
- int x;
- int y;
- int width;
- int height;
- __u32 chromakey;
- struct v4l2_clip *clips;
- int clipcount;
- void *bitmap;
- };
- /*
- * D E V I C E P E R F O R M A N C E
- */
- struct v4l2_performance
- {
- int frames;
- int framesdropped;
- __u64 bytesin;
- __u64 bytesout;
- __u32 reserved[4];
- };
- /*
- * C A P T U R E P A R A M E T E R S
- */
- struct v4l2_captureparm
- {
- __u32 capability; /* Supported modes */
- __u32 capturemode; /* Current mode */
- unsigned long timeperframe; /* Time per frame in .1us units */
- __u32 extendedmode; /* Driver-specific extensions */
- __u32 reserved[4];
- };
- /* Flags for 'capability' and 'capturemode' fields */
- #define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
- //#define V4L2_MODE_VFLIP 0x0002 /* Flip image vertically */
- //#define V4L2_MODE_HFLIP 0x0004 /* Flip image horizontally */
- #define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
- struct v4l2_outputparm
- {
- __u32 capability; /* Supported modes */
- __u32 outputmode; /* Current mode */
- unsigned long timeperframe; /* Time per frame in .1us units */
- __u32 extendedmode; /* Driver-specific extensions */
- __u32 reserved[4];
- };
- /*
- * I N P U T I M A G E C R O P P I N G
- */
- struct v4l2_cropcap
- {
- __u32 capability;
- int min_x;
- int min_y;
- int max_x;
- int max_y;
- int default_left;
- int default_top;
- int default_right;
- int default_bottom;
- __u32 reserved[2];
- };
- struct v4l2_crop
- {
- int left;
- int top;
- int right;
- int bottom;
- __u32 reserved;
- };
- /*
- * D I G I T A L Z O O M
- */
- struct v4l2_zoomcap
- {
- __u32 capability;
- __u32 maxwidth;
- __u32 maxheight;
- __u32 minwidth;
- __u32 minheight;
- __u32 reserved[2];
- };
- /* Flags for the capability field */
- #define V4L2_ZOOM_NONCAP 0x0001
- #define V4L2_ZOOM_WHILESTREAMING 0x0002
- struct v4l2_zoom
- {
- __u32 x;
- __u32 y;
- __u32 width;
- __u32 height;
- __u32 reserved;
- };
- /*
- * A N A L O G V I D E O S T A N D A R D
- */
- struct v4l2_standard
- {
- __u8 name[24];
- struct {
- __u32 numerator;
- __u32 denominator; /* >= 1 */
- } framerate; /* Frames, not fields */
- __u32 framelines;
- __u32 reserved1;
- __u32 colorstandard;
- union {
- struct {
- __u32 colorsubcarrier; /* Hz */
- } pal;
- struct {
- __u32 colorsubcarrier; /* Hz */
- } ntsc;
- struct {
- __u32 f0b; /* Hz (blue) */
- __u32 f0r; /* Hz (red) */
- } secam;
- __u8 reserved[12];
- } colorstandard_data;
- __u32 transmission; /* Bit field. Must be zero for
- non-modulators/demodulators. */
- __u32 reserved2; /* Must be set to zero */
- };
- /* Values for the 'colorstandard' field */
- #define V4L2_COLOR_STD_PAL 1
- #define V4L2_COLOR_STD_NTSC 2
- #define V4L2_COLOR_STD_SECAM 3
- /* Values for the color subcarrier fields */
- #define V4L2_COLOR_SUBC_PAL 4433619 /* PAL BGHI, NTSC-44 */
- #define V4L2_COLOR_SUBC_PAL_M 3575611 /* PAL M (Brazil) */
- #define V4L2_COLOR_SUBC_PAL_N 3582056 /* PAL N */
- #define V4L2_COLOR_SUBC_NTSC 3579545 /* NTSC M, NTSC-Japan */
- #define V4L2_COLOR_SUBC_SECAMB 4250000 /* SECAM B - Y carrier */
- #define V4L2_COLOR_SUBC_SECAMR 4406250 /* SECAM R - Y carrier */
- /* Flags for the 'transmission' field */
- #define V4L2_TRANSM_STD_B (1<<1)
- #define V4L2_TRANSM_STD_D (1<<3)
- #define V4L2_TRANSM_STD_G (1<<6)
- #define V4L2_TRANSM_STD_H (1<<7)
- #define V4L2_TRANSM_STD_I (1<<8)
- #define V4L2_TRANSM_STD_K (1<<10)
- #define V4L2_TRANSM_STD_K1 (1<<11)
- #define V4L2_TRANSM_STD_L (1<<12)
- #define V4L2_TRANSM_STD_M (1<<13)
- #define V4L2_TRANSM_STD_N (1<<14)
- /* Used in the VIDIOC_ENUMSTD ioctl for querying supported standards */
- struct v4l2_enumstd
- {
- int index;
- struct v4l2_standard std;
- __u32 inputs; /* set of inputs that */
- /* support this standard */
- __u32 outputs; /* set of outputs that */
- /* support this standard */
- __u32 reserved[2];
- };
- /*
- * V I D E O I N P U T S
- */
- struct v4l2_input
- {
- int index; /* Which input */
- char name[32]; /* Label */
- int type; /* Type of input */
- __u32 capability; /* Capability flags */
- int assoc_audio; /* Associated audio input */
- __u32 reserved[4];
- };
- /* Values for the 'type' field */
- #define V4L2_INPUT_TYPE_TUNER 1
- #define V4L2_INPUT_TYPE_CAMERA 2
- /* Flags for the 'capability' field */
- #define V4L2_INPUT_CAP_AUDIO 0x0001 /* assoc_audio */
- /*
- * V I D E O O U T P U T S
- */
- struct v4l2_output
- {
- int index; /* Which output */
- char name[32]; /* Label */
- int type; /* Type of output */
- __u32 capability; /* Capability flags */
- int assoc_audio; /* Associated audio */
- __u32 reserved[4];
- };
- /* Values for the 'type' field */
- #define V4L2_OUTPUT_TYPE_MODULATOR 1
- #define V4L2_OUTPUT_TYPE_ANALOG 2
- #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
- /* Flags for the 'capability' field */
- #define V4L2_OUTPUT_CAP_AUDIO 0x0001 /* assoc_audio */
- /*
- * C O N T R O L S
- */
- struct v4l2_control
- {
- __u32 id;
- int value;
- };
- /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
- struct v4l2_queryctrl
- {
- __u32 id;
- __u8 name[32]; /* Whatever */
- int minimum; /* Note signedness */
- int maximum;
- unsigned int step;
- int default_value;
- __u32 type;
- __u32 flags;
- __u32 category; /* Automatically filled in by V4L2 */
- __u8 catname[32]; /* for pre-defined controls */
- __u32 reserved[2];
- };
- /* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
- struct v4l2_querymenu
- {
- __u32 id;
- int index;
- __u8 name[32]; /* Whatever */
- int reserved;
- };
- /* Used in V4L2_BUF_TYPE_FXCONTROL buffers */
- struct v4l2_fxcontrol
- {
- __u32 id;
- __u32 value;
- };
- /* Control types */
- #define V4L2_CTRL_TYPE_INTEGER 0
- #define V4L2_CTRL_TYPE_BOOLEAN 1
- #define V4L2_CTRL_TYPE_MENU 2
- #define V4L2_CTRL_TYPE_BUTTON 3
- /* Control flags */
- #define V4L2_CTRL_FLAG_GRAYED 0x0001
- /* Control categories */
- #define V4L2_CTRL_CAT_VIDEO 1 /* "Video" */
- #define V4L2_CTRL_CAT_AUDIO 2 /* "Audio" */
- #define V4L2_CTRL_CAT_EFFECT 3 /* "Effect" */
- /* Control IDs defined by V4L2 */
- #define V4L2_CID_BASE 0x00980900
- /* IDs reserved for driver specific controls */
- #define V4L2_CID_PRIVATE_BASE 0x08000000
- /* IDs reserved for effect-specific controls on effects devices */
- #define V4L2_CID_EFFECT_BASE 0x0A00B000
- #define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
- #define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
- #define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
- #define V4L2_CID_HUE (V4L2_CID_BASE+3)
- #define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
- #define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
- #define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
- #define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
- #define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
- #define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
- #define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11)
- #define V4l2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
- #define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
- #define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
- #define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
- #define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
- #define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* ? Not sure */
- #define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
- #define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
- #define V4L2_CID_GAIN (V4L2_CID_BASE+19)
- #define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
- #define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
- #define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
- #define V4L2_CID_VCENTER (V4l2_CID_BASE+23)
- #define V4L2_CID_LASTP1 (V4L2_CID_BASE+24) /* last CID + 1 */
- /* Remember to change fill_ctrl_category() in videodev.c */
- /*
- * T U N I N G
- */
- struct v4l2_tuner
- {
- int input;
- char name[32];
- struct v4l2_standard std;
- __u32 capability;
- __u32 rangelow;
- __u32 rangehigh;
- __u32 rxsubchans;
- __u32 audmode;
- int signal;
- int afc;
- __u32 reserved[4];
- };
- struct v4l2_modulator
- {
- int output;
- char name[32];
- struct v4l2_standard std;
- __u32 capability;
- __u32 rangelow;
- __u32 rangehigh;
- __u32 audmode;
- __u32 reserved[4];
- };
- /* Flags for the 'capability' field */
- #define V4L2_TUNER_CAP_LOW 0x0001
- #define V4L2_TUNER_CAP_NORM 0x0002
- #define V4L2_TUNER_CAP_STEREO 0x0010
- #define V4L2_TUNER_CAP_LANG2 0x0020
- #define V4L2_TUNER_CAP_SAP 0x0020
- /* Flags for the 'rxsubchans' field */
- #define V4L2_TUNER_SUB_MONO 0x0001
- #define V4L2_TUNER_SUB_STEREO 0x0002
- #define V4L2_TUNER_SUB_LANG2 0x0004
- #define V4L2_TUNER_SUB_SAP 0x0004
- /* Values for the 'audmode' field */
- #define V4L2_TUNER_MODE_MONO 0x0000
- #define V4L2_TUNER_MODE_STEREO 0x0001
- #define V4L2_TUNER_MODE_LANG2 0x0002
- #define V4L2_TUNER_MODE_SAP 0x0002
- struct v4l2_frequency
- {
- int port;
- __u32 frequency;
- __u32 reserved[2];
- };
- /*
- * A U D I O
- */
- struct v4l2_audio
- {
- int audio;
- char name[32];
- __u32 capability;
- __u32 mode;
- __u32 reserved[2];
- };
- /* Flags for the 'capability' field */
- #define V4L2_AUDCAP_EFFECTS 0x0020
- #define V4L2_AUDCAP_LOUDNESS 0x0040
- #define V4L2_AUDCAP_AVL 0x0080
- /* Flags for the 'mode' field */
- #define V4L2_AUDMODE_LOUDNESS 0x00002
- #define V4L2_AUDMODE_AVL 0x00004
- #define V4L2_AUDMODE_STEREO_field 0x0FF00
- #define V4L2_AUDMODE_STEREO_LINEAR 0x00100
- #define V4L2_AUDMODE_STEREO_PSEUDO 0x00200
- #define V4L2_AUDMODE_STEREO_SPATIAL30 0x00300
- #define V4L2_AUDMODE_STEREO_SPATIAL50 0x00400
- struct v4l2_audioout
- {
- int audio;
- char name[32];
- __u32 capability;
- __u32 mode;
- __u32 reserved[2];
- };
- /*
- * D A T A S E R V I C E S ( V B I )
- */
- struct v4l2_vbi_format
- {
- __u32 sampling_rate; /* in 1 Hz */
- __u32 reserved1; /* must be zero */
- __u32 samples_per_line;
- __u32 sample_format; /* V4L2_VBI_SF_* */
- __s32 start[2];
- __u32 count[2];
- __u32 flags; /* V4L2_VBI_* */
- __u32 reserved2; /* must be zero */
- };
- /* VBI sampling formats */
- #define V4L2_VBI_SF_UBYTE 1
- /* VBI flags */
- #define V4L2_VBI_UNSYNC (1<< 0)
- #define V4L2_VBI_INTERLACED (1<< 1)
- /*
- * I O C T L C O D E S F O R V I D E O D E V I C E S
- *
- */
- #define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
- #define VIDIOC_RESERVED _IO ('V', 1)
- #define VIDIOC_ENUM_CAPFMT _IOWR ('V', 2, struct v4l2_fmtdesc)
- #define VIDIOC_ENUM_FBUFFMT _IOWR ('V', 3, struct v4l2_fmtdesc)
- #define VIDIOC_G_FMT _IOR ('V', 4, struct v4l2_format)
- #define VIDIOC_S_FMT _IOWR ('V', 5, struct v4l2_format)
- #define VIDIOC_G_COMP _IOR ('V', 6, struct v4l2_compression)
- #define VIDIOC_S_COMP _IOW ('V', 7, struct v4l2_compression)
- #define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
- #define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
- #define VIDIOC_G_FBUF _IOR ('V', 10, struct v4l2_framebuffer)
- #define VIDIOC_S_FBUF _IOW ('V', 11, struct v4l2_framebuffer)
- #define VIDIOC_G_WIN _IOR ('V', 12, struct v4l2_window)
- #define VIDIOC_S_WIN _IOW ('V', 13, struct v4l2_window)
- #define VIDIOC_PREVIEW _IO ('V', 14)
- #define VIDIOC_QBUF _IOWR ('V', 15, struct v4l2_buffer)
- #define VIDIOC_S_VBIFMT _IOWR ('V', 16, struct v4l2_vbi_format)
- #define VIDIOC_DQBUF _IOWR ('V', 17, struct v4l2_buffer)
- #define VIDIOC_STREAMON _IO ('V', 18)
- #define VIDIOC_STREAMOFF _IO ('V', 19)
- #define VIDIOC_G_PERF _IOR ('V', 20, struct v4l2_performance)
- #define VIDIOC_G_PARM _IOR ('V', 21, struct v4l2_captureparm)
- #define VIDIOC_S_PARM _IOW ('V', 22, struct v4l2_captureparm)
- #define VIDIOC_G_STD _IOR ('V', 23, struct v4l2_standard)
- #define VIDIOC_S_STD _IOW ('V', 24, struct v4l2_standard)
- #define VIDIOC_ENUMSTD _IOWR ('V', 25, struct v4l2_enumstd)
- #define VIDIOC_ENUMINPUT _IOWR ('V', 26, struct v4l2_input)
- #define VIDIOC_G_CTRL _IOWR ('V', 27, struct v4l2_control)
- #define VIDIOC_S_CTRL _IOW ('V', 28, struct v4l2_control)
- #define VIDIOC_G_TUNER _IOWR ('V', 29, struct v4l2_tuner)
- #define VIDIOC_S_TUNER _IOW ('V', 30, struct v4l2_tuner)
- #define VIDIOC_G_FREQ _IOR ('V', 31, __u32)
- #define VIDIOC_S_FREQ _IO ('V', 32)
- #define VIDIOC_G_AUDIO _IOWR ('V', 33, struct v4l2_audio)
- #define VIDIOC_S_AUDIO _IOW ('V', 34, struct v4l2_audio)
- #define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
- #define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
- #define VIDIOC_G_INPUT _IOR ('V', 38, int)
- #define VIDIOC_S_INPUT _IO ('V', 39)
- #define VIDIOC_ENUMCVT _IOWR ('V', 40, struct v4l2_cvtdesc)
- #define VIDIOC_G_INFMT _IOR ('V', 41, struct v4l2_format)
- #define VIDIOC_S_INFMT _IOWR ('V', 42, struct v4l2_format)
- #define VIDIOC_G_VBIFMT _IOR ('V', 43, struct v4l2_vbi_format)
- #define VIDIOC_G_OUTPARM _IOR ('V', 44, struct v4l2_outputparm)
- #define VIDIOC_S_OUTPARM _IOW ('V', 45, struct v4l2_outputparm)
- #define VIDIOC_G_OUTPUT _IOR ('V', 46, int)
- #define VIDIOC_S_OUTPUT _IO ('V', 47)
- #define VIDIOC_ENUMOUTPUT _IOWR ('V', 48, struct v4l2_output)
- #define VIDIOC_G_AUDOUT _IOWR ('V', 49, struct v4l2_audioout)
- #define VIDIOC_S_AUDOUT _IOW ('V', 50, struct v4l2_audioout)
- #define VIDIOC_ENUMFX _IOWR ('V', 51, struct v4l2_fxdesc)
- #define VIDIOC_G_EFFECT _IOR ('V', 52, int)
- #define VIDIOC_S_EFFECT _IO ('V', 53)
- #define VIDIOC_G_MODULATOR _IOWR ('V', 54, struct v4l2_modulator)
- #define VIDIOC_S_MODULATOR _IOW ('V', 55, struct v4l2_modulator)
- #define VIDIOC_G_OUTFMT VIDIOC_G_FMT
- #define VIDIOC_S_OUTFMT VIDIOC_S_FMT
- #define VIDIOC_ENUM_OUTFMT VIDIOC_ENUM_CAPFMT
- #define VIDIOC_ENUM_SRCFMT VIDIOC_ENUM_CAPFMT
- #define VIDIOC_ENUMFMT VIDIOC_ENUM_CAPFMT
- #define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
- #ifdef __KERNEL__
- /*
- * These things are used only by drivers.
- */
- extern int videodev_init(void);
- /*
- *
- * V 4 L 2 D R I V E R H E L P E R A P I
- *
- * Some commonly needed functions for drivers.
- */
- extern void v4l2_version(int *major, int *minor);
- extern int v4l2_major_number(void);
- /* Memory management */
- extern unsigned long v4l2_vmalloc_to_bus(void *virt);
- extern unsigned long v4l2_vmalloc_to_page(void *virt);
- /* Simple queue management */
- struct v4l2_q_node
- {
- struct v4l2_q_node *forw, *back;
- };
- struct v4l2_queue
- {
- struct v4l2_q_node *forw, *back;
- rwlock_t qlock;
- };
- extern void v4l2_q_init(struct v4l2_queue *q);
- extern void v4l2_q_add_head(struct v4l2_queue *q, struct v4l2_q_node *node);
- extern void v4l2_q_add_tail(struct v4l2_queue *q, struct v4l2_q_node *node);
- extern void *v4l2_q_del_head(struct v4l2_queue *q);
- extern void *v4l2_q_del_tail(struct v4l2_queue *q);
- extern void *v4l2_q_peek_head(struct v4l2_queue *q);
- extern void *v4l2_q_peek_tail(struct v4l2_queue *q);
- extern void *v4l2_q_yank_node(struct v4l2_queue *q, struct v4l2_q_node *node);
- /* Math functions */
- extern u32 v4l2_math_div6432(u64 a, u32 d, u32 *r);
- /* Time functions */
- extern void v4l2_timeval_delta(struct timeval *d,
- struct timeval *a, struct timeval *b);
- extern unsigned long v4l2_timeval_divide(struct timeval *t,
- unsigned long p_100ns);
- extern unsigned long v4l2_timeval_correct(struct timeval *t,
- unsigned long p_100ns);
- /* Master Clock functions */
- struct v4l2_clock
- {
- void (*gettime)(struct timeval *);
- };
- extern int v4l2_masterclock_register(struct v4l2_clock *clock);
- extern void v4l2_masterclock_unregister(struct v4l2_clock *clock);
- extern void v4l2_masterclock_gettime(struct timeval *curr);
- /* Video standard functions */
- extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
- extern unsigned long v4l2_video_std_tpf(struct v4l2_standard *vs);
- extern int v4l2_video_std_confirm(struct v4l2_standard *vs);
- extern int v4l2_video_std_construct(struct v4l2_standard *vs,
- int id, __u32 transmission);
- #define V4L2_STD_PAL 1 /* PAL B, G, H, I (...) */
- #define V4L2_STD_PAL_M 5 /* (Brazil) */
- #define V4L2_STD_PAL_N 6 /* (Argentina, Paraguay, Uruguay) */
- #define V4L2_STD_PAL_60 10 /* PAL/NTSC hybrid */
- #define V4L2_STD_NTSC 11 /* NTSC M (USA, ...) */
- #define V4L2_STD_NTSC_N 12 /* (Barbados, Bolivia, Colombia,
- S. Korea) */
- #define V4L2_STD_NTSC_44 15 /* PAL/NTSC hybrid */
- #define V4L2_STD_SECAM 21 /* SECAM B, D, G, K, K1 (...) */
- //#define V4L2_STD_SECAM_H 27 /* (Greece, Iran, Morocco) */
- //#define V4L2_STD_SECAM_L 28 /* (France, Luxembourg, Monaco) */
- //#define V4L2_STD_SECAM_M 29 /* (Jamaica) */
- /*
- * D E V I C E D R I V E R R E G I S T R A T I O N
- *
- */
- struct v4l2_device
- {
- char name[32];
- int type;
- int minor;
- int (*open)(struct v4l2_device *v,
- int flags, void **idptr);
- void (*close)(void *id);
- long (*read)(void *id,
- char *buf, unsigned long count, int noblock);
- long (*write)(void *id,
- const char *buf, unsigned long count, int noblock);
- int (*ioctl)(void *id,
- unsigned int cmd, void *arg);
- int (*mmap)(void *id,
- struct vm_area_struct *vma);
- int (*poll)(void *id,
- struct file *file, poll_table *table);
- int (*initialize)(struct v4l2_device *v);
- void *priv; /* may be used by the driver */
- int busy; /* open count maintained by videodev.c */
- void *v4l2_priv; /* for V4L2 use */
- int v4l2_reserved[4]; /* for V4L2 use */
- };
- /* Size of kernel ioctl arg buffer used in ioctl handler */
- #define V4L2_MAX_IOCTL_SIZE 256
- extern int v4l2_register_device(struct v4l2_device *);
- extern void v4l2_unregister_device(struct v4l2_device *);
- /* V4L2 structures */
- extern struct v4l2_device *v4l2_device_from_file(struct file *file);
- extern void *v4l2_openid_from_file(struct file *file);
- #endif/*ifdef __KERNEL__ */
- /*----------------------------------------------------------------------
- Old Video for Linux backward compatibility below this line.
- ----------------------------------------------------------------------
- All new applications should use the new API calls.
- (These definitions taken from 2.2.1.)
- */
- #define VID_TYPE_CAPTURE 1 /* Can capture */
- #define VID_TYPE_TUNER 2 /* Can tune */
- #define VID_TYPE_TELETEXT 4 /* Does teletext */
- #define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */
- #define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */
- #define VID_TYPE_CLIPPING 32 /* Can clip */
- #define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */
- #define VID_TYPE_SCALES 128 /* Scalable */
- #define VID_TYPE_MONOCHROME 256 /* Monochrome only */
- #define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */
- struct video_capability
- {
- char name[32];
- int type;
- int channels; /* Num channels */
- int audios; /* Num audio devices */
- int maxwidth; /* Supported width */
- int maxheight; /* And height */
- int minwidth; /* Supported width */
- int minheight; /* And height */
- };
- struct video_channel
- {
- int channel;
- char name[32];
- int tuners;
- __u32 flags;
- #define VIDEO_VC_TUNER 1 /* Channel has a tuner */
- #define VIDEO_VC_AUDIO 2 /* Channel has audio */
- __u16 type;
- #define VIDEO_TYPE_TV 1
- #define VIDEO_TYPE_CAMERA 2
- __u16 norm; /* Norm set by channel */
- };
- struct video_tuner
- {
- int tuner;
- char name[32];
- ulong rangelow, rangehigh; /* Tuner range */
- __u32 flags;
- #define VIDEO_TUNER_PAL 1
- #define VIDEO_TUNER_NTSC 2
- #define VIDEO_TUNER_SECAM 4
- #define VIDEO_TUNER_LOW 8 /* Uses KHz not MHz */
- #define VIDEO_TUNER_NORM 16 /* Tuner can set norm */
- #define VIDEO_TUNER_STEREO_ON 128 /* Tuner is seeing stereo */
- __u16 mode; /* PAL/NTSC/SECAM/OTHER */
- #define VIDEO_MODE_PAL 0
- #define VIDEO_MODE_NTSC 1
- #define VIDEO_MODE_SECAM 2
- #define VIDEO_MODE_AUTO 3
- __u16 signal; /* Signal strength 16bit scale */
- };
- struct video_picture
- {
- __u16 brightness;
- __u16 hue;
- __u16 colour;
- __u16 contrast;
- __u16 whiteness; /* Black and white only */
- __u16 depth; /* Capture depth */
- __u16 palette; /* Palette in use */
- #define VIDEO_PALETTE_GREY 1 /* Linear greyscale */
- #define VIDEO_PALETTE_HI240 2 /* High 240 cube (BT848) */
- #define VIDEO_PALETTE_RGB565 3 /* 565 16 bit RGB */
- #define VIDEO_PALETTE_RGB24 4 /* 24bit RGB */
- #define VIDEO_PALETTE_RGB32 5 /* 32bit RGB */
- #define VIDEO_PALETTE_RGB555 6 /* 555 15bit RGB */
- #define VIDEO_PALETTE_YUV422 7 /* YUV422 capture */
- #define VIDEO_PALETTE_YUYV 8
- #define VIDEO_PALETTE_UYVY 9 /* The great thing about standards is ... */
- #define VIDEO_PALETTE_YUV420 10
- #define VIDEO_PALETTE_YUV411 11 /* YUV411 capture */
- #define VIDEO_PALETTE_RAW 12 /* RAW capture (BT848) */
- #define VIDEO_PALETTE_YUV422P 13 /* YUV 4:2:2 Planar */
- #define VIDEO_PALETTE_YUV411P 14 /* YUV 4:1:1 Planar */
- #define VIDEO_PALETTE_YUV420P 15 /* YUV 4:2:0 Planar */
- #define VIDEO_PALETTE_YUV410P 16 /* YUV 4:1:0 Planar */
- #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
- #define VIDEO_AUDIO_BALANCE 32
- 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_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 */
- };
- #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) /* Set 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 */
- #define VIDIOCSAUDIO _IOW('v',17, struct video_audio) /* Audio source, mute etc */
- #define VIDIOCSYNC _IOW('v',18, int) /* Sync with mmap grabbing */
- #define VIDIOCMCAPTURE _IOW('v',19, struct video_mmap) /* Grab frames */
- #define VIDIOCGMBUF _IOR('v', 20, struct video_mbuf) /* Memory map buffer info */
- #define VIDIOCGUNIT _IOR('v', 21, struct video_unit) /* Get attached units */
- #define VIDIOCGCAPTURE _IOR('v',22, struct video_capture) /* Get frame buffer */
- #define VIDIOCSCAPTURE _IOW('v',23, struct video_capture) /* Set frame buffer - root only */
- #define BASE_VIDIOCPRIVATE 192 /* 192-255 are private */
- #endif/*ifndef __LINUX_VIDEODEV_H*/