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| 1 /* libv4l1 linux/videodev.h replacement file */ |
| 2 #ifndef __LINUX_VIDEODEV_H |
| 3 #define __LINUX_VIDEODEV_H |
| 4 |
| 5 #ifdef linux |
| 6 #include <linux/ioctl.h> |
| 7 #endif |
| 8 |
| 9 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
| 10 #include <sys/ioctl.h> |
| 11 #endif |
| 12 |
| 13 #include <stdint.h> |
| 14 |
| 15 #define VID_TYPE_CAPTURE 1 /* Can capture */ |
| 16 #define VID_TYPE_TUNER 2 /* Can tune */ |
| 17 #define VID_TYPE_TELETEXT 4 /* Does teletext */ |
| 18 #define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */ |
| 19 #define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */ |
| 20 #define VID_TYPE_CLIPPING 32 /* Can clip */ |
| 21 #define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */ |
| 22 #define VID_TYPE_SCALES 128 /* Scalable */ |
| 23 #define VID_TYPE_MONOCHROME 256 /* Monochrome only */ |
| 24 #define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */ |
| 25 #define VID_TYPE_MPEG_DECODER 1024 /* Can decode MPEG streams */ |
| 26 #define VID_TYPE_MPEG_ENCODER 2048 /* Can encode MPEG streams */ |
| 27 #define VID_TYPE_MJPEG_DECODER 4096 /* Can decode MJPEG streams */ |
| 28 #define VID_TYPE_MJPEG_ENCODER 8192 /* Can encode MJPEG streams */ |
| 29 |
| 30 struct video_capability |
| 31 { |
| 32 char name[32]; |
| 33 int type; |
| 34 int channels; /* Num channels */ |
| 35 int audios; /* Num audio devices */ |
| 36 int maxwidth; /* Supported width */ |
| 37 int maxheight; /* And height */ |
| 38 int minwidth; /* Supported width */ |
| 39 int minheight; /* And height */ |
| 40 }; |
| 41 |
| 42 |
| 43 struct video_channel |
| 44 { |
| 45 int channel; |
| 46 char name[32]; |
| 47 int tuners; |
| 48 uint32_t flags; |
| 49 #define VIDEO_VC_TUNER 1 /* Channel has a tuner */ |
| 50 #define VIDEO_VC_AUDIO 2 /* Channel has audio */ |
| 51 uint16_t type; |
| 52 #define VIDEO_TYPE_TV 1 |
| 53 #define VIDEO_TYPE_CAMERA 2 |
| 54 uint16_t norm; /* Norm set by channel */ |
| 55 }; |
| 56 |
| 57 struct video_tuner |
| 58 { |
| 59 int tuner; |
| 60 char name[32]; |
| 61 unsigned long rangelow, rangehigh; /* Tuner range */ |
| 62 uint32_t flags; |
| 63 #define VIDEO_TUNER_PAL 1 |
| 64 #define VIDEO_TUNER_NTSC 2 |
| 65 #define VIDEO_TUNER_SECAM 4 |
| 66 #define VIDEO_TUNER_LOW 8 /* Uses KHz not MHz */ |
| 67 #define VIDEO_TUNER_NORM 16 /* Tuner can set norm */ |
| 68 #define VIDEO_TUNER_STEREO_ON 128 /* Tuner is seeing stereo */ |
| 69 #define VIDEO_TUNER_RDS_ON 256 /* Tuner is seeing an RDS datastream */ |
| 70 #define VIDEO_TUNER_MBS_ON 512 /* Tuner is seeing an MBS datastream */ |
| 71 uint16_t mode; /* PAL/NTSC/SECAM/OTHER */ |
| 72 #define VIDEO_MODE_PAL 0 |
| 73 #define VIDEO_MODE_NTSC 1 |
| 74 #define VIDEO_MODE_SECAM 2 |
| 75 #define VIDEO_MODE_AUTO 3 |
| 76 uint16_t signal; /* Signal strength 16bit scale *
/ |
| 77 }; |
| 78 |
| 79 struct video_picture |
| 80 { |
| 81 uint16_t brightness; |
| 82 uint16_t hue; |
| 83 uint16_t colour; |
| 84 uint16_t contrast; |
| 85 uint16_t whiteness; /* Black and white only */ |
| 86 uint16_t depth; /* Capture depth */ |
| 87 uint16_t palette; /* Palette in use */ |
| 88 #define VIDEO_PALETTE_GREY 1 /* Linear greyscale */ |
| 89 #define VIDEO_PALETTE_HI240 2 /* High 240 cube (BT848) */ |
| 90 #define VIDEO_PALETTE_RGB565 3 /* 565 16 bit RGB */ |
| 91 #define VIDEO_PALETTE_RGB24 4 /* 24bit RGB */ |
| 92 #define VIDEO_PALETTE_RGB32 5 /* 32bit RGB */ |
| 93 #define VIDEO_PALETTE_RGB555 6 /* 555 15bit RGB */ |
| 94 #define VIDEO_PALETTE_YUV422 7 /* YUV422 capture */ |
| 95 #define VIDEO_PALETTE_YUYV 8 |
| 96 #define VIDEO_PALETTE_UYVY 9 /* The great thing about standards is ..
. */ |
| 97 #define VIDEO_PALETTE_YUV420 10 |
| 98 #define VIDEO_PALETTE_YUV411 11 /* YUV411 capture */ |
| 99 #define VIDEO_PALETTE_RAW 12 /* RAW capture (BT848) */ |
| 100 #define VIDEO_PALETTE_YUV422P 13 /* YUV 4:2:2 Planar */ |
| 101 #define VIDEO_PALETTE_YUV411P 14 /* YUV 4:1:1 Planar */ |
| 102 #define VIDEO_PALETTE_YUV420P 15 /* YUV 4:2:0 Planar */ |
| 103 #define VIDEO_PALETTE_YUV410P 16 /* YUV 4:1:0 Planar */ |
| 104 #define VIDEO_PALETTE_PLANAR 13 /* start of planar entries */ |
| 105 #define VIDEO_PALETTE_COMPONENT 7 /* start of component entries */ |
| 106 }; |
| 107 |
| 108 struct video_audio |
| 109 { |
| 110 int audio; /* Audio channel */ |
| 111 uint16_t volume; /* If settable */ |
| 112 uint16_t bass, treble; |
| 113 uint32_t flags; |
| 114 #define VIDEO_AUDIO_MUTE 1 |
| 115 #define VIDEO_AUDIO_MUTABLE 2 |
| 116 #define VIDEO_AUDIO_VOLUME 4 |
| 117 #define VIDEO_AUDIO_BASS 8 |
| 118 #define VIDEO_AUDIO_TREBLE 16 |
| 119 #define VIDEO_AUDIO_BALANCE 32 |
| 120 char name[16]; |
| 121 #define VIDEO_SOUND_MONO 1 |
| 122 #define VIDEO_SOUND_STEREO 2 |
| 123 #define VIDEO_SOUND_LANG1 4 |
| 124 #define VIDEO_SOUND_LANG2 8 |
| 125 uint16_t mode; |
| 126 uint16_t balance; /* Stereo balance */ |
| 127 uint16_t step; /* Step actual volume uses */ |
| 128 }; |
| 129 |
| 130 struct video_clip |
| 131 { |
| 132 int32_t x,y; |
| 133 int32_t width, height; |
| 134 struct video_clip *next; /* For user use/driver use only */ |
| 135 }; |
| 136 |
| 137 struct video_window |
| 138 { |
| 139 uint32_t x,y; /* Position of window */ |
| 140 uint32_t width,height; /* Its size */ |
| 141 uint32_t chromakey; |
| 142 uint32_t flags; |
| 143 struct video_clip *clips; /* Set only */ |
| 144 int clipcount; |
| 145 #define VIDEO_WINDOW_INTERLACE 1 |
| 146 #define VIDEO_WINDOW_CHROMAKEY 16 /* Overlay by chromakey */ |
| 147 #define VIDEO_CLIP_BITMAP -1 |
| 148 /* bitmap is 1024x625, a '1' bit represents a clipped pixel */ |
| 149 #define VIDEO_CLIPMAP_SIZE (128 * 625) |
| 150 }; |
| 151 |
| 152 struct video_buffer |
| 153 { |
| 154 void *base; |
| 155 int height,width; |
| 156 int depth; |
| 157 int bytesperline; |
| 158 }; |
| 159 |
| 160 struct video_mmap |
| 161 { |
| 162 unsigned int frame; /* Frame (0 - n) for double buffer */ |
| 163 int height,width; |
| 164 unsigned int format; /* should be VIDEO_PALETTE_* */ |
| 165 }; |
| 166 |
| 167 struct video_mbuf |
| 168 { |
| 169 int size; /* Total memory to map */ |
| 170 int frames; /* Frames */ |
| 171 int offsets[32]; |
| 172 }; |
| 173 |
| 174 struct vbi_format { |
| 175 uint32_t sampling_rate; /* in Hz */ |
| 176 uint32_t samples_per_line; |
| 177 uint32_t sample_format; /* VIDEO_PALETTE_RAW only (1 byte) */ |
| 178 int32_t start[2]; /* starting line for each frame */ |
| 179 uint32_t count[2]; /* count of lines for each frame */ |
| 180 uint32_t flags; |
| 181 #define VBI_UNSYNC 1 /* can distingues between top/bottom field */ |
| 182 #define VBI_INTERLACED 2 /* lines are interlaced */ |
| 183 }; |
| 184 |
| 185 #define VIDIOCGCAP _IOR('v',1,struct video_capability) /* Get c
apabilities */ |
| 186 #define VIDIOCGCHAN _IOWR('v',2,struct video_channel) /* Get c
hannel info (sources) */ |
| 187 #define VIDIOCSCHAN _IOW('v',3,struct video_channel) /* Set c
hannel */ |
| 188 #define VIDIOCGTUNER _IOWR('v',4,struct video_tuner) /* Get t
uner abilities */ |
| 189 #define VIDIOCSTUNER _IOW('v',5,struct video_tuner) /* Tune
the tuner for the current channel */ |
| 190 #define VIDIOCGPICT _IOR('v',6,struct video_picture) /* Get p
icture properties */ |
| 191 #define VIDIOCSPICT _IOW('v',7,struct video_picture) /* Set p
icture properties */ |
| 192 #define VIDIOCCAPTURE _IOW('v',8,int) /* Start
, end capture */ |
| 193 #define VIDIOCGWIN _IOR('v',9, struct video_window) /* Get t
he video overlay window */ |
| 194 #define VIDIOCSWIN _IOW('v',10, struct video_window) /* Set t
he video overlay window - passes clip list for hardware smarts , chromakey etc *
/ |
| 195 #define VIDIOCGFBUF _IOR('v',11, struct video_buffer) /* Get f
rame buffer */ |
| 196 #define VIDIOCSFBUF _IOW('v',12, struct video_buffer) /* Set f
rame buffer - root only */ |
| 197 #define VIDIOCGFREQ _IOR('v',14, unsigned long) /* Set t
uner */ |
| 198 #define VIDIOCSFREQ _IOW('v',15, unsigned long) /* Set t
uner */ |
| 199 #define VIDIOCGAUDIO _IOR('v',16, struct video_audio) /* Get a
udio info */ |
| 200 #define VIDIOCSAUDIO _IOW('v',17, struct video_audio) /* Audio
source, mute etc */ |
| 201 #define VIDIOCSYNC _IOW('v',18, int) /* Sync
with mmap grabbing */ |
| 202 #define VIDIOCMCAPTURE _IOW('v',19, struct video_mmap) /* Grab
frames */ |
| 203 #define VIDIOCGMBUF _IOR('v',20, struct video_mbuf) /* Memor
y map buffer info */ |
| 204 #define VIDIOCGVBIFMT _IOR('v',28, struct vbi_format) /* Get V
BI information */ |
| 205 #define VIDIOCSVBIFMT _IOW('v',29, struct vbi_format) /* Set V
BI information */ |
| 206 |
| 207 #endif |
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Chromium Code Reviews
Issue 700383004:
Add use_v4lplugin flag to enable v4l2 library (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master