mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 12:39:23 +00:00
341 lines
11 KiB
C
341 lines
11 KiB
C
/*
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* Video for Linux version 1 - OBSOLETE
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*
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* Header file for v4l1 drivers and applications, for
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* Linux kernels 2.2.x or 2.4.x.
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*
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* Provides header for legacy drivers and applications
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*
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* See http://linuxtv.org for more info
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*
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*/
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#ifndef __LINUX_VIDEODEV_H
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#define __LINUX_VIDEODEV_H
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#include <linux/videodev2.h>
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#if defined(__MIN_V4L1) && defined (__KERNEL__)
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/*
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* Used by those V4L2 core functions that need a minimum V4L1 support,
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* in order to allow V4L1 Compatibilty code compilation.
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*/
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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 VIDIOCGMBUF _IOR('v',20, struct video_mbuf) /* Memory map buffer info */
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#else
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#if defined(CONFIG_VIDEO_V4L1_COMPAT) || !defined (__KERNEL__)
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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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#define VID_TYPE_MPEG_DECODER 1024 /* Can decode MPEG streams */
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#define VID_TYPE_MPEG_ENCODER 2048 /* Can encode MPEG streams */
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#define VID_TYPE_MJPEG_DECODER 4096 /* Can decode MJPEG streams */
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#define VID_TYPE_MJPEG_ENCODER 8192 /* Can encode MJPEG streams */
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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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unsigned long 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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#define VIDEO_TUNER_RDS_ON 256 /* Tuner is seeing an RDS datastream */
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#define VIDEO_TUNER_MBS_ON 512 /* Tuner is seeing an MBS datastream */
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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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#define VIDEO_AUDIO_BALANCE 32
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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;
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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 __user *clips; /* Set only */
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int clipcount;
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#define VIDEO_WINDOW_INTERLACE 1
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#define VIDEO_WINDOW_CHROMAKEY 16 /* Overlay by chromakey */
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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 divider */
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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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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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struct vbi_format {
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__u32 sampling_rate; /* in Hz */
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__u32 samples_per_line;
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__u32 sample_format; /* VIDEO_PALETTE_RAW only (1 byte) */
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__s32 start[2]; /* starting line for each frame */
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__u32 count[2]; /* count of lines for each frame */
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__u32 flags;
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#define VBI_UNSYNC 1 /* can distingues between top/bottom field */
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#define VBI_INTERLACED 2 /* lines are interlaced */
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};
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/* video_info is biased towards hardware mpeg encode/decode */
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/* but it could apply generically to any hardware compressor/decompressor */
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struct video_info
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{
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__u32 frame_count; /* frames output since decode/encode began */
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__u32 h_size; /* current unscaled horizontal size */
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__u32 v_size; /* current unscaled veritcal size */
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__u32 smpte_timecode; /* current SMPTE timecode (for current GOP) */
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__u32 picture_type; /* current picture type */
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__u32 temporal_reference; /* current temporal reference */
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__u8 user_data[256]; /* user data last found in compressed stream */
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/* user_data[0] contains user data flags, user_data[1] has count */
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};
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/* generic structure for setting playback modes */
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struct video_play_mode
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{
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int mode;
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int p1;
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int p2;
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};
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/* for loading microcode / fpga programming */
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struct video_code
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{
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char loadwhat[16]; /* name or tag of file being passed */
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int datasize;
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__u8 *data;
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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) /* Get 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 subcapture */
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#define VIDIOCSCAPTURE _IOW('v',23, struct video_capture) /* Set subcapture */
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#define VIDIOCSPLAYMODE _IOW('v',24, struct video_play_mode) /* Set output video mode/feature */
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#define VIDIOCSWRITEMODE _IOW('v',25, int) /* Set write mode */
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#define VIDIOCGPLAYINFO _IOR('v',26, struct video_info) /* Get current playback info from hardware */
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#define VIDIOCSMICROCODE _IOW('v',27, struct video_code) /* Load microcode into hardware */
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#define VIDIOCGVBIFMT _IOR('v',28, struct vbi_format) /* Get VBI information */
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#define VIDIOCSVBIFMT _IOW('v',29, struct vbi_format) /* Set VBI information */
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#define BASE_VIDIOCPRIVATE 192 /* 192-255 are private */
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/* VIDIOCSWRITEMODE */
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#define VID_WRITE_MPEG_AUD 0
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#define VID_WRITE_MPEG_VID 1
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#define VID_WRITE_OSD 2
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#define VID_WRITE_TTX 3
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#define VID_WRITE_CC 4
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#define VID_WRITE_MJPEG 5
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/* VIDIOCSPLAYMODE */
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#define VID_PLAY_VID_OUT_MODE 0
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/* p1: = VIDEO_MODE_PAL, VIDEO_MODE_NTSC, etc ... */
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#define VID_PLAY_GENLOCK 1
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/* p1: 0 = OFF, 1 = ON */
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/* p2: GENLOCK FINE DELAY value */
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#define VID_PLAY_NORMAL 2
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#define VID_PLAY_PAUSE 3
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#define VID_PLAY_SINGLE_FRAME 4
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#define VID_PLAY_FAST_FORWARD 5
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#define VID_PLAY_SLOW_MOTION 6
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#define VID_PLAY_IMMEDIATE_NORMAL 7
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#define VID_PLAY_SWITCH_CHANNELS 8
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#define VID_PLAY_FREEZE_FRAME 9
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#define VID_PLAY_STILL_MODE 10
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#define VID_PLAY_MASTER_MODE 11
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/* p1: see below */
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#define VID_PLAY_MASTER_NONE 1
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#define VID_PLAY_MASTER_VIDEO 2
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#define VID_PLAY_MASTER_AUDIO 3
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#define VID_PLAY_ACTIVE_SCANLINES 12
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/* p1 = first active; p2 = last active */
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#define VID_PLAY_RESET 13
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#define VID_PLAY_END_MARK 14
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#endif /* CONFIG_VIDEO_V4L1_COMPAT */
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#endif /* __MIN_V4L1 */
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#endif /* __LINUX_VIDEODEV_H */
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/*
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* Local variables:
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* c-basic-offset: 8
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* End:
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*/
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