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11 // For Open Source Computer Vision Library
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42 #ifndef __LINUX_VIDEODEV_H
43 #define __LINUX_VIDEODEV_H
49 #include <linux/types.h>
50 #include <linux/version.h>
54 #if LINUX_VERSION_CODE >= 0x020100
55 #include <linux/poll.h>
64 int (*open)(struct video_device *, int mode);
65 void (*close)(struct video_device *);
66 long (*read)(struct video_device *, char *, unsigned long, int noblock);
67 /* Do we need a write method ? */
68 long (*write)(struct video_device *, const char *, unsigned long, int noblock);
69 #if LINUX_VERSION_CODE >= 0x020100
70 unsigned int (*poll)(struct video_device *, struct file *, poll_table *);
72 int (*ioctl)(struct video_device *, unsigned int , void *);
73 int (*mmap)(struct video_device *, const char *, unsigned long);
74 int (*initialize)(struct video_device *);
75 void *priv; /* Used to be 'private' but that upsets C++ */
80 extern int videodev_init(void);
81 #define VIDEO_MAJOR 81
82 extern int video_register_device(struct video_device *, int type);
84 #define VFL_TYPE_GRABBER 0
85 #define VFL_TYPE_VBI 1
86 #define VFL_TYPE_RADIO 2
87 #define VFL_TYPE_VTX 3
89 extern void video_unregister_device(struct video_device *);
93 #define VID_TYPE_CAPTURE 1 /* Can capture */
94 #define VID_TYPE_TUNER 2 /* Can tune */
95 #define VID_TYPE_TELETEXT 4 /* Does teletext */
96 #define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */
97 #define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */
98 #define VID_TYPE_CLIPPING 32 /* Can clip */
99 #define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */
100 #define VID_TYPE_SCALES 128 /* Scalable */
101 #define VID_TYPE_MONOCHROME 256 /* Monochrome only */
102 #define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */
104 struct video_capability
108 int channels; /* Num channels */
109 int audios; /* Num audio devices */
110 int maxwidth; /* Supported width */
111 int maxheight; /* And height */
112 int minwidth; /* Supported width */
113 int minheight; /* And height */
123 #define VIDEO_VC_TUNER 1 /* Channel has a tuner */
124 #define VIDEO_VC_AUDIO 2 /* Channel has audio */
126 #define VIDEO_TYPE_TV 1
127 #define VIDEO_TYPE_CAMERA 2
128 __u16 norm; /* Norm set by channel */
135 __u32 rangelow, rangehigh; /* Tuner range */
137 #define VIDEO_TUNER_PAL 1
138 #define VIDEO_TUNER_NTSC 2
139 #define VIDEO_TUNER_SECAM 4
140 #define VIDEO_TUNER_LOW 8 /* Uses KHz not MHz */
141 #define VIDEO_TUNER_NORM 16 /* Tuner can set norm */
142 #define VIDEO_TUNER_STEREO_ON 128 /* Tuner is seeing stereo */
143 #define VIDEO_TUNER_RDS_ON 256 /* Tuner is seeing an RDS datastream */
144 #define VIDEO_TUNER_MBS_ON 512 /* Tuner is seeing an MBS datastream */
145 __u16 mode; /* PAL/NTSC/SECAM/OTHER */
146 #define VIDEO_MODE_PAL 0
147 #define VIDEO_MODE_NTSC 1
148 #define VIDEO_MODE_SECAM 2
149 #define VIDEO_MODE_AUTO 3
150 __u16 signal; /* Signal strength 16bit scale */
159 __u16 whiteness; /* Black and white only */
160 __u16 depth; /* Capture depth */
161 __u16 palette; /* Palette in use */
162 #define VIDEO_PALETTE_GREY 1 /* Linear greyscale */
163 #define VIDEO_PALETTE_HI240 2 /* High 240 cube (BT848) */
164 #define VIDEO_PALETTE_RGB565 3 /* 565 16 bit RGB */
165 #define VIDEO_PALETTE_RGB24 4 /* 24bit RGB */
166 #define VIDEO_PALETTE_RGB32 5 /* 32bit RGB */
167 #define VIDEO_PALETTE_RGB555 6 /* 555 15bit RGB */
168 #define VIDEO_PALETTE_YUV422 7 /* YUV422 capture */
169 #define VIDEO_PALETTE_YUYV 8
170 #define VIDEO_PALETTE_UYVY 9 /* The great thing about standards is ... */
171 #define VIDEO_PALETTE_YUV420 10
172 #define VIDEO_PALETTE_YUV411 11 /* YUV411 capture */
173 #define VIDEO_PALETTE_RAW 12 /* RAW capture (BT848) */
174 #define VIDEO_PALETTE_YUV422P 13 /* YUV 4:2:2 Planar */
175 #define VIDEO_PALETTE_YUV411P 14 /* YUV 4:1:1 Planar */
176 #define VIDEO_PALETTE_YUV420P 15 /* YUV 4:2:0 Planar */
177 #define VIDEO_PALETTE_YUV410P 16 /* YUV 4:1:0 Planar */
178 #define VIDEO_PALETTE_PLANAR 13 /* start of planar entries */
179 #define VIDEO_PALETTE_COMPONENT 7 /* start of component entries */
184 int audio; /* Audio channel */
185 __u16 volume; /* If settable */
188 #define VIDEO_AUDIO_MUTE 1
189 #define VIDEO_AUDIO_MUTABLE 2
190 #define VIDEO_AUDIO_VOLUME 4
191 #define VIDEO_AUDIO_BASS 8
192 #define VIDEO_AUDIO_TREBLE 16
194 #define VIDEO_SOUND_MONO 1
195 #define VIDEO_SOUND_STEREO 2
196 #define VIDEO_SOUND_LANG1 4
197 #define VIDEO_SOUND_LANG2 8
199 __u16 balance; /* Stereo balance */
200 __u16 step; /* Step actual volume uses */
207 struct video_clip *next; /* For user use/driver use only */
212 __u32 x,y; /* Position of window */
213 __u32 width,height; /* Its size */
216 struct video_clip *clips; /* Set only */
218 #define VIDEO_WINDOW_INTERLACE 1
219 #define VIDEO_CLIP_BITMAP -1
220 /* bitmap is 1024x625, a '1' bit represents a clipped pixel */
221 #define VIDEO_CLIPMAP_SIZE (128 * 625)
226 __u32 x,y; /* Offsets into image */
227 __u32 width, height; /* Area to capture */
228 __u16 decimation; /* Decimation divder */
229 __u16 flags; /* Flags for capture */
230 #define VIDEO_CAPTURE_ODD 0 /* Temporal */
231 #define VIDEO_CAPTURE_EVEN 1
244 unsigned int frame; /* Frame (0 - n) for double buffer */
246 unsigned int format; /* should be VIDEO_PALETTE_* */
256 #define VIDEO_MAX_FRAME 32
260 int size; /* Total memory to map */
261 int frames; /* Frames */
262 int offsets[VIDEO_MAX_FRAME];
266 #define VIDEO_NO_UNIT (-1)
271 int video; /* Video minor */
272 int vbi; /* VBI minor */
273 int radio; /* Radio minor */
274 int audio; /* Audio minor */
275 int teletext; /* Teletext minor */
278 #define VIDIOCGCAP _IOR('v',1,struct video_capability) /* Get capabilities */
279 #define VIDIOCGCHAN _IOWR('v',2,struct video_channel) /* Get channel info (sources) */
280 #define VIDIOCSCHAN _IOW('v',3,struct video_channel) /* Set channel */
281 #define VIDIOCGTUNER _IOWR('v',4,struct video_tuner) /* Get tuner abilities */
282 #define VIDIOCSTUNER _IOW('v',5,struct video_tuner) /* Tune the tuner for the current channel */
283 #define VIDIOCGPICT _IOR('v',6,struct video_picture) /* Get picture properties */
284 #define VIDIOCSPICT _IOW('v',7,struct video_picture) /* Set picture properties */
285 #define VIDIOCCAPTURE _IOW('v',8,int) /* Start, end capture */
286 #define VIDIOCGWIN _IOR('v',9, struct video_window) /* Get the video overlay window */
287 #define VIDIOCSWIN _IOW('v',10, struct video_window) /* Set the video overlay window - passes clip list for hardware smarts , chromakey etc */
288 #define VIDIOCGFBUF _IOR('v',11, struct video_buffer) /* Get frame buffer */
289 #define VIDIOCSFBUF _IOW('v',12, struct video_buffer) /* Set frame buffer - root only */
290 #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) */
291 #define VIDIOCGFREQ _IOR('v',14, unsigned long) /* Set tuner */
292 #define VIDIOCSFREQ _IOW('v',15, unsigned long) /* Set tuner */
293 #define VIDIOCGAUDIO _IOR('v',16, struct video_audio) /* Get audio info */
294 #define VIDIOCSAUDIO _IOW('v',17, struct video_audio) /* Audio source, mute etc */
295 #define VIDIOCSYNC _IOW('v',18, int) /* Sync with mmap grabbing */
296 #define VIDIOCMCAPTURE _IOW('v',19, struct video_mmap) /* Grab frames */
297 #define VIDIOCGMBUF _IOR('v', 20, struct video_mbuf) /* Memory map buffer info */
298 #define VIDIOCGUNIT _IOR('v', 21, struct video_unit) /* Get attached units */
299 #define VIDIOCGCAPTURE _IOR('v',22, struct video_capture) /* Get frame buffer */
300 #define VIDIOCSCAPTURE _IOW('v',23, struct video_capture) /* Set frame buffer - root only */
302 #define BASE_VIDIOCPRIVATE 192 /* 192-255 are private */
305 #define VID_HARDWARE_BT848 1
306 #define VID_HARDWARE_QCAM_BW 2
307 #define VID_HARDWARE_PMS 3
308 #define VID_HARDWARE_QCAM_C 4
309 #define VID_HARDWARE_PSEUDO 5
310 #define VID_HARDWARE_SAA5249 6
311 #define VID_HARDWARE_AZTECH 7
312 #define VID_HARDWARE_SF16MI 8
313 #define VID_HARDWARE_RTRACK 9
314 #define VID_HARDWARE_ZOLTRIX 10
315 #define VID_HARDWARE_SAA7146 11
316 #define VID_HARDWARE_VIDEUM 12 /* Reserved for Winnov videum */
317 #define VID_HARDWARE_RTRACK2 13
318 #define VID_HARDWARE_PERMEDIA2 14 /* Reserved for Permedia2 */
319 #define VID_HARDWARE_RIVA128 15 /* Reserved for RIVA 128 */
320 #define VID_HARDWARE_PLANB 16 /* PowerMac motherboard video-in */
321 #define VID_HARDWARE_BROADWAY 17 /* Broadway project */
322 #define VID_HARDWARE_GEMTEK 18
323 #define VID_HARDWARE_TYPHOON 19
324 #define VID_HARDWARE_VINO 20 /* Reserved for SGI Indy Vino */
325 #define VID_HARDWARE_CADET 21 /* Cadet radio */
326 #define VID_HARDWARE_TRUST 22 /* Trust FM Radio */
335 int (*init)(struct video_init *);