diff options
Diffstat (limited to 'sys/v4l/videodev_mjpeg.h')
| -rw-r--r-- | sys/v4l/videodev_mjpeg.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/sys/v4l/videodev_mjpeg.h b/sys/v4l/videodev_mjpeg.h deleted file mode 100644 index e217fe41..00000000 --- a/sys/v4l/videodev_mjpeg.h +++ /dev/null @@ -1,123 +0,0 @@ -/* These are the MJPEG API extensions for the Video4Linux API, - first introduced by the Iomega Buz driver by Rainer Johanni - <rainer@johanni.de> -*/ - -#ifndef __VIDEODEV_MJPEG_H__ -#define __VIDEODEV_MJPEG_H__ - -/* This is identical with the mgavideo internal params struct, - please tell me if you change this struct here ! <gz@lysator.liu.se) */ -struct mjpeg_params -{ - - /* The following parameters can only be queried */ - - int major_version; /* Major version number of driver */ - int minor_version; /* Minor version number of driver */ - - /* Main control parameters */ - - int input; /* Input channel: 0 = Composite, 1 = S-VHS */ - int norm; /* Norm: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */ - int decimation; /* decimation of captured video, - enlargement of video played back. - Valid values are 1, 2, 4 or 0. - 0 is a special value where the user - has full control over video scaling */ - - /* The following parameters only have to be set if decimation==0, - for other values of decimation they provide the data how the image is captured */ - - int HorDcm; /* Horizontal decimation: 1, 2 or 4 */ - int VerDcm; /* Vertical decimation: 1 or 2 */ - int TmpDcm; /* Temporal decimation: 1 or 2, - if TmpDcm==2 in capture every second frame is dropped, - in playback every frame is played twice */ - int field_per_buff; /* Number of fields per buffer: 1 or 2 */ - int img_x; /* start of image in x direction */ - int img_y; /* start of image in y direction */ - int img_width; /* image width BEFORE decimation, - must be a multiple of HorDcm*16 */ - int img_height; /* image height BEFORE decimation, - must be a multiple of VerDcm*8 */ - - /* --- End of parameters for decimation==0 only --- */ - - /* JPEG control parameters */ - - int quality; /* Measure for quality of compressed images. - Scales linearly with the size of the compressed images. - Must be beetween 0 and 100, 100 is a compression - ratio of 1:4 */ - - int odd_even; /* Which field should come first ??? - This is more aptly named "top_first", - i.e. (odd_even==1) --> top-field-first */ - - int APPn; /* Number of APP segment to be written, must be 0..15 */ - int APP_len; /* Length of data in JPEG APPn segment */ - char APP_data[60]; /* Data in the JPEG APPn segment. */ - - int COM_len; /* Length of data in JPEG COM segment */ - char COM_data[60]; /* Data in JPEG COM segment */ - - unsigned long jpeg_markers; /* Which markers should go into the JPEG output. - Unless you exactly know what you do, leave them untouched. - Inluding less markers will make the resulting code - smaller, but there will be fewer applications - which can read it. - The presence of the APP and COM marker is - influenced by APP0_len and COM_len ONLY! */ -#define JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */ -#define JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */ -#define JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */ -#define JPEG_MARKER_COM (1<<6) /* Comment segment */ -#define JPEG_MARKER_APP (1<<7) /* App segment, driver will allways use APP0 */ - - int VFIFO_FB; /* Flag for enabling Video Fifo Feedback. - If this flag is turned on and JPEG decompressing - is going to the screen, the decompress process - is stopped every time the Video Fifo is full. - This enables a smooth decompress to the screen - but the video output signal will get scrambled */ - - /* Misc */ - - char reserved[312]; /* Makes 512 bytes for this structure */ -}; - -struct mjpeg_requestbuffers -{ - unsigned long count; /* Number of buffers for MJPEG grabbing */ - unsigned long size; /* Size PER BUFFER in bytes */ -}; - -struct mjpeg_sync -{ - unsigned long frame; /* Frame (0 - n) for double buffer */ - unsigned long length; /* number of code bytes in buffer (capture only) */ - unsigned long seq; /* frame sequence number */ - struct timeval timestamp; /* timestamp */ -}; - -struct mjpeg_status -{ - int input; /* Input channel, has to be set prior to BUZIOC_G_STATUS */ - int signal; /* Returned: 1 if valid video signal detected */ - int norm; /* Returned: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */ - int color; /* Returned: 1 if color signal detected */ -}; - -/* -Private IOCTL to set up for displaying MJPEG -*/ -#define MJPIOC_G_PARAMS _IOR ('v', BASE_VIDIOCPRIVATE+0, struct mjpeg_params) -#define MJPIOC_S_PARAMS _IOWR('v', BASE_VIDIOCPRIVATE+1, struct mjpeg_params) -#define MJPIOC_REQBUFS _IOWR('v', BASE_VIDIOCPRIVATE+2, struct mjpeg_requestbuffers) -#define MJPIOC_QBUF_CAPT _IOW ('v', BASE_VIDIOCPRIVATE+3, int) -#define MJPIOC_QBUF_PLAY _IOW ('v', BASE_VIDIOCPRIVATE+4, int) -#define MJPIOC_SYNC _IOR ('v', BASE_VIDIOCPRIVATE+5, struct mjpeg_sync) -#define MJPIOC_G_STATUS _IOWR('v', BASE_VIDIOCPRIVATE+6, struct mjpeg_status) - -#endif /* __VIDEODEV_MJPEG_H__ */ |