mirror of
https://github.com/mpv-player/mpv
synced 2024-12-30 19:22:11 +00:00
284 lines
8.5 KiB
C
284 lines
8.5 KiB
C
#ifndef __LINUX_VIDEODEV_H
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#define __LINUX_VIDEODEV_H
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#include <linux/types.h>
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#ifdef __KERNEL__
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#if LINUX_VERSION_CODE >= 0x020100
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#include <linux/poll.h>
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#endif
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struct video_device
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{
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char name[32];
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int type;
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int hardware;
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int (*open)(struct video_device *, int mode);
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void (*close)(struct video_device *);
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long (*read)(struct video_device *, char *, unsigned long, int noblock);
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/* Do we need a write method ? */
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long (*write)(struct video_device *, const char *, unsigned long, int noblock);
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#if LINUX_VERSION_CODE >= 0x020100
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unsigned int (*poll)(struct video_device *, struct file *, poll_table *);
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#endif
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int (*ioctl)(struct video_device *, unsigned int , void *);
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int (*mmap)(struct video_device *, const char *, unsigned long);
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int (*initialize)(struct video_device *);
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void *priv; /* Used to be 'private' but that upsets C++ */
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int busy;
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int minor;
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};
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extern int videodev_init(void);
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#define VIDEO_MAJOR 81
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extern int video_register_device(struct video_device *, int type);
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#define VFL_TYPE_GRABBER 0
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#define VFL_TYPE_VBI 1
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#define VFL_TYPE_RADIO 2
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#define VFL_TYPE_VTX 3
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extern void video_unregister_device(struct video_device *);
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#endif
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#define VID_TYPE_CAPTURE 1 /* Can capture */
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#define VID_TYPE_TUNER 2 /* Can tune */
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#define VID_TYPE_TELETEXT 4 /* Does teletext */
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#define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */
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#define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */
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#define VID_TYPE_CLIPPING 32 /* Can clip */
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#define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */
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#define VID_TYPE_SCALES 128 /* Scalable */
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#define VID_TYPE_MONOCHROME 256 /* Monochrome only */
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#define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */
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struct video_capability
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{
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char name[32];
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int type;
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int channels; /* Num channels */
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int audios; /* Num audio devices */
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int maxwidth; /* Supported width */
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int maxheight; /* And height */
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int minwidth; /* Supported width */
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int minheight; /* And height */
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};
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struct video_channel
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{
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int channel;
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char name[32];
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int tuners;
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__u32 flags;
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#define VIDEO_VC_TUNER 1 /* Channel has a tuner */
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#define VIDEO_VC_AUDIO 2 /* Channel has audio */
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__u16 type;
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#define VIDEO_TYPE_TV 1
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#define VIDEO_TYPE_CAMERA 2
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__u16 norm; /* Norm set by channel */
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};
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struct video_tuner
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{
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int tuner;
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char name[32];
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ulong rangelow, rangehigh; /* Tuner range */
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__u32 flags;
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#define VIDEO_TUNER_PAL 1
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#define VIDEO_TUNER_NTSC 2
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#define VIDEO_TUNER_SECAM 4
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#define VIDEO_TUNER_LOW 8 /* Uses KHz not MHz */
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#define VIDEO_TUNER_NORM 16 /* Tuner can set norm */
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#define VIDEO_TUNER_STEREO_ON 128 /* Tuner is seeing stereo */
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__u16 mode; /* PAL/NTSC/SECAM/OTHER */
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#define VIDEO_MODE_PAL 0
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#define VIDEO_MODE_NTSC 1
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#define VIDEO_MODE_SECAM 2
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#define VIDEO_MODE_AUTO 3
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__u16 signal; /* Signal strength 16bit scale */
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};
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struct video_picture
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{
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__u16 brightness;
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__u16 hue;
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__u16 colour;
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__u16 contrast;
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__u16 whiteness; /* Black and white only */
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__u16 depth; /* Capture depth */
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__u16 palette; /* Palette in use */
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#define VIDEO_PALETTE_GREY 1 /* Linear greyscale */
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#define VIDEO_PALETTE_HI240 2 /* High 240 cube (BT848) */
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#define VIDEO_PALETTE_RGB565 3 /* 565 16 bit RGB */
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#define VIDEO_PALETTE_RGB24 4 /* 24bit RGB */
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#define VIDEO_PALETTE_RGB32 5 /* 32bit RGB */
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#define VIDEO_PALETTE_RGB555 6 /* 555 15bit RGB */
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#define VIDEO_PALETTE_YUV422 7 /* YUV422 capture */
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#define VIDEO_PALETTE_YUYV 8
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#define VIDEO_PALETTE_UYVY 9 /* The great thing about standards is ... */
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#define VIDEO_PALETTE_YUV420 10
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#define VIDEO_PALETTE_YUV411 11 /* YUV411 capture */
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#define VIDEO_PALETTE_RAW 12 /* RAW capture (BT848) */
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#define VIDEO_PALETTE_YUV422P 13 /* YUV 4:2:2 Planar */
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#define VIDEO_PALETTE_YUV411P 14 /* YUV 4:1:1 Planar */
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#define VIDEO_PALETTE_YUV420P 15 /* YUV 4:2:0 Planar */
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#define VIDEO_PALETTE_YUV410P 16 /* YUV 4:1:0 Planar */
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#define VIDEO_PALETTE_PLANAR 13 /* start of planar entries */
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#define VIDEO_PALETTE_COMPONENT 7 /* start of component entries */
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};
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struct video_audio
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{
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int audio; /* Audio channel */
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__u16 volume; /* If settable */
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__u16 bass, treble;
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__u32 flags;
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#define VIDEO_AUDIO_MUTE 1
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#define VIDEO_AUDIO_MUTABLE 2
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#define VIDEO_AUDIO_VOLUME 4
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#define VIDEO_AUDIO_BASS 8
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#define VIDEO_AUDIO_TREBLE 16
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char name[16];
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#define VIDEO_SOUND_MONO 1
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#define VIDEO_SOUND_STEREO 2
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#define VIDEO_SOUND_LANG1 4
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#define VIDEO_SOUND_LANG2 8
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__u16 mode; /* detected audio carriers or one to set */
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__u16 balance; /* Stereo balance */
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__u16 step; /* Step actual volume uses */
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};
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struct video_clip
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{
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__s32 x,y;
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__s32 width, height;
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struct video_clip *next; /* For user use/driver use only */
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};
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struct video_window
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{
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__u32 x,y; /* Position of window */
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__u32 width,height; /* Its size */
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__u32 chromakey;
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__u32 flags;
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struct video_clip *clips; /* Set only */
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int clipcount;
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#define VIDEO_WINDOW_INTERLACE 1
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#define VIDEO_CLIP_BITMAP -1
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/* bitmap is 1024x625, a '1' bit represents a clipped pixel */
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#define VIDEO_CLIPMAP_SIZE (128 * 625)
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};
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struct video_capture
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{
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__u32 x,y; /* Offsets into image */
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__u32 width, height; /* Area to capture */
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__u16 decimation; /* Decimation divder */
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__u16 flags; /* Flags for capture */
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#define VIDEO_CAPTURE_ODD 0 /* Temporal */
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#define VIDEO_CAPTURE_EVEN 1
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};
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struct video_buffer
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{
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void *base;
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int height,width;
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int depth;
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int bytesperline;
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};
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struct video_mmap
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{
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unsigned int frame; /* Frame (0 - n) for double buffer */
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int height,width;
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unsigned int format; /* should be VIDEO_PALETTE_* */
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};
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struct video_key
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{
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__u8 key[8];
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__u32 flags;
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};
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#define VIDEO_MAX_FRAME 32
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struct video_mbuf
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{
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int size; /* Total memory to map */
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int frames; /* Frames */
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int offsets[VIDEO_MAX_FRAME];
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};
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#define VIDEO_NO_UNIT (-1)
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struct video_unit
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{
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int video; /* Video minor */
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int vbi; /* VBI minor */
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int radio; /* Radio minor */
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int audio; /* Audio minor */
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int teletext; /* Teletext minor */
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};
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#define VIDIOCGCAP _IOR('v',1,struct video_capability) /* Get capabilities */
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#define VIDIOCGCHAN _IOWR('v',2,struct video_channel) /* Get channel info (sources) */
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#define VIDIOCSCHAN _IOW('v',3,struct video_channel) /* Set channel */
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#define VIDIOCGTUNER _IOWR('v',4,struct video_tuner) /* Get tuner abilities */
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#define VIDIOCSTUNER _IOW('v',5,struct video_tuner) /* Tune the tuner for the current channel */
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#define VIDIOCGPICT _IOR('v',6,struct video_picture) /* Get picture properties */
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#define VIDIOCSPICT _IOW('v',7,struct video_picture) /* Set picture properties */
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#define VIDIOCCAPTURE _IOW('v',8,int) /* Start, end capture */
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#define VIDIOCGWIN _IOR('v',9, struct video_window) /* Set the video overlay window */
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#define VIDIOCSWIN _IOW('v',10, struct video_window) /* Set the video overlay window - passes clip list for hardware smarts , chromakey etc */
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#define VIDIOCGFBUF _IOR('v',11, struct video_buffer) /* Get frame buffer */
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#define VIDIOCSFBUF _IOW('v',12, struct video_buffer) /* Set frame buffer - root only */
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#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) */
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#define VIDIOCGFREQ _IOR('v',14, unsigned long) /* Set tuner */
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#define VIDIOCSFREQ _IOW('v',15, unsigned long) /* Set tuner */
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#define VIDIOCGAUDIO _IOR('v',16, struct video_audio) /* Get audio info */
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#define VIDIOCSAUDIO _IOW('v',17, struct video_audio) /* Audio source, mute etc */
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#define VIDIOCSYNC _IOW('v',18, int) /* Sync with mmap grabbing */
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#define VIDIOCMCAPTURE _IOW('v',19, struct video_mmap) /* Grab frames */
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#define VIDIOCGMBUF _IOR('v', 20, struct video_mbuf) /* Memory map buffer info */
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#define VIDIOCGUNIT _IOR('v', 21, struct video_unit) /* Get attached units */
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#define VIDIOCGCAPTURE _IOR('v',22, struct video_capture) /* Get frame buffer */
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#define VIDIOCSCAPTURE _IOW('v',23, struct video_capture) /* Set frame buffer - root only */
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#define BASE_VIDIOCPRIVATE 192 /* 192-255 are private */
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#define VID_HARDWARE_BT848 1
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#define VID_HARDWARE_QCAM_BW 2
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#define VID_HARDWARE_PMS 3
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#define VID_HARDWARE_QCAM_C 4
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#define VID_HARDWARE_PSEUDO 5
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#define VID_HARDWARE_SAA5249 6
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#define VID_HARDWARE_AZTECH 7
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#define VID_HARDWARE_SF16MI 8
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#define VID_HARDWARE_RTRACK 9
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#define VID_HARDWARE_ZOLTRIX 10
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#define VID_HARDWARE_SAA7146 11
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#define VID_HARDWARE_VIDEUM 12 /* Reserved for Winnov videum */
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#define VID_HARDWARE_RTRACK2 13
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#define VID_HARDWARE_PERMEDIA2 14 /* Reserved for Permedia2 */
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#define VID_HARDWARE_RIVA128 15 /* Reserved for RIVA 128 */
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/*
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* Initialiser list
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*/
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struct video_init
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{
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char *name;
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int (*init)(struct video_init *);
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};
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#endif
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