diff options
| author | sos <sos@FreeBSD.org> | 1998-08-31 18:31:36 +0000 |
|---|---|---|
| committer | sos <sos@FreeBSD.org> | 1998-08-31 18:31:36 +0000 |
| commit | 2cddefeee28308f18edd56895c39e86d02a449e8 (patch) | |
| tree | e37accb86109a6a684df5a4303faa2ad78d00589 /sys/i386/include/ioctl_bt848.h | |
| parent | bae4326618e3f49d770051d27112e1c7dde79d7e (diff) | |
| download | FreeBSD-src-2cddefeee28308f18edd56895c39e86d02a449e8.zip FreeBSD-src-2cddefeee28308f18edd56895c39e86d02a449e8.tar.gz | |
Added Capture Area ioctl - BT848[SG]CAPAREA.
Normally the full 640x480 (768x576 PAL) image is grabbed. This ioctl
allows a smaller area from anywhere within the video image to be
grabbed, eg a 400x300 image from (50,10).
See restrictions in BT848SCAPAREA.
Submitted by: Roger Hardiman <roger@cs.strath.ac.uk>
Diffstat (limited to 'sys/i386/include/ioctl_bt848.h')
| -rw-r--r-- | sys/i386/include/ioctl_bt848.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sys/i386/include/ioctl_bt848.h b/sys/i386/include/ioctl_bt848.h index db09dc8..09a4a5e 100644 --- a/sys/i386/include/ioctl_bt848.h +++ b/sys/i386/include/ioctl_bt848.h @@ -197,6 +197,21 @@ struct _bktr_clip { #define BT848SCBUF _IOW('x', 68, int) #define BT848GCBUF _IOR('x', 68, int) +/* set capture area */ +/* The capture area is the area of the video image which is grabbed */ +/* Usually the capture area is 640x480 (768x576 PAL) pixels */ +/* This area is then scaled to the dimensions the user requires */ +/* using the METEORGEO ioctl */ +/* However, the capture area could be 400x300 pixels from the top right */ +/* corner of the video image */ +struct bktr_capture_area { + int x_offset; + int y_offset; + int x_size; + int y_size; +}; +#define BT848SCAPAREA _IOW('x', 69, struct bktr_capture_area) +#define BT848GCAPAREA _IOR('x', 69, struct bktr_capture_area) /* Read/Write the BT848's I2C bus directly * b7-b0: data (read/write) |
