diff options
| author | Laurent Pinchart <laurent.pinchart@skynet.be> | 2006-09-28 13:42:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-10-03 15:14:15 -0300 |
| commit | 92b2db08b1150576d295ba9440e172675095c3ae (patch) | |
| tree | 4018fe9ad19bc48835eef8034bad57dbbe80922c | |
| parent | 515c208db869459e4f2a58021df5aecf21c9a19f (diff) | |
V4L/DVB (4672): Frame format enumeration (1/2)
Add VIDIOC_ENUM_FRAMESIZES and VIDIOC_ENUM_FRAMEINTERVALS ioctls to enumerate
supported frame sizes and frame intervals.
Signed-off-by: Martin Rubli <martin.rubli@epfl.ch>
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| -rw-r--r-- | include/linux/videodev2.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 44c59da26ed..253a7ed3abb 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -277,6 +277,79 @@ struct v4l2_fmtdesc #define V4L2_FMT_FLAG_COMPRESSED 0x0001 /* + * F R A M E S I Z E E N U M E R A T I O N + */ +enum v4l2_frmsizetypes +{ + V4L2_FRMSIZE_TYPE_DISCRETE = 1, + V4L2_FRMSIZE_TYPE_CONTINUOUS = 2, + V4L2_FRMSIZE_TYPE_STEPWISE = 3, +}; + +struct v4l2_frmsize_discrete +{ + __u32 width; /* Frame width [pixel] */ + __u32 height; /* Frame height [pixel] */ +}; + +struct v4l2_frmsize_stepwise +{ + __u32 min_width; /* Minimum frame width [pixel] */ + __u32 max_width; /* Maximum frame width [pixel] */ + __u32 step_width; /* Frame width step size [pixel] */ + __u32 min_height; /* Minimum frame height [pixel] */ + __u32 max_height; /* Maximum frame height [pixel] */ + __u32 step_height; /* Frame height step size [pixel] */ +}; + +struct v4l2_frmsizeenum +{ + __u32 index; /* Frame size number */ + __u32 pixel_format; /* Pixel format */ + __u32 type; /* Frame size type the device supports. */ + + union { /* Frame size */ + struct v4l2_frmsize_discrete discrete; + struct v4l2_frmsize_stepwise stepwise; + }; + + __u32 reserved[2]; /* Reserved space for future use */ +}; + +/* + * F R A M E R A T E E N U M E R A T I O N + */ +enum v4l2_frmivaltypes +{ + V4L2_FRMIVAL_TYPE_DISCRETE = 1, + V4L2_FRMIVAL_TYPE_CONTINUOUS = 2, + V4L2_FRMIVAL_TYPE_STEPWISE = 3, +}; + +struct v4l2_frmival_stepwise +{ + struct v4l2_fract min; /* Minimum frame interval [s] */ + struct v4l2_fract max; /* Maximum frame interval [s] */ + struct v4l2_fract step; /* Frame interval step size [s] */ +}; + +struct v4l2_frmivalenum +{ + __u32 index; /* Frame format index */ + __u32 pixel_format; /* Pixel format */ + __u32 width; /* Frame width */ + __u32 height; /* Frame height */ + __u32 type; /* Frame interval type the device supports. */ + + union { /* Frame interval */ + struct v4l2_fract discrete; + struct v4l2_frmival_stepwise stepwise; + }; + + __u32 reserved[2]; /* Reserved space for future use */ +}; + +/* * T I M E C O D E */ struct v4l2_timecode @@ -1249,6 +1322,8 @@ struct v4l2_streamparm #define VIDIOC_G_EXT_CTRLS _IOWR ('V', 71, struct v4l2_ext_controls) #define VIDIOC_S_EXT_CTRLS _IOWR ('V', 72, struct v4l2_ext_controls) #define VIDIOC_TRY_EXT_CTRLS _IOWR ('V', 73, struct v4l2_ext_controls) +#define VIDIOC_ENUM_FRAMESIZES _IOWR ('V', 74, struct v4l2_frmsizeenum) +#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR ('V', 75, struct v4l2_frmivalenum) #ifdef __OLD_VIDIOC_ /* for compatibility, will go away some day */ |