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| author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-09-28 13:42:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-09-28 13:42:05 -0300 |
| commit | b23b7d2a8d967834e5be01ec654e53ce6a1edf8e (patch) | |
| tree | 6b28c3b9ef4ef5449fa43198f4c39e5f4d1271c3 /linux | |
| parent | 0d0d0b15510ed42d0a15fdce49103870ec1f2748 (diff) | |
| download | mediapointer-dvb-s2-b23b7d2a8d967834e5be01ec654e53ce6a1edf8e.tar.gz mediapointer-dvb-s2-b23b7d2a8d967834e5be01ec654e53ce6a1edf8e.tar.bz2 | |
Frame format enumeration (1/2)
From: Laurent Pinchart <laurent.pinchart@skynet.be>
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>
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/include/linux/videodev2.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/linux/include/linux/videodev2.h b/linux/include/linux/videodev2.h index c269a76ca..c3c175f93 100644 --- a/linux/include/linux/videodev2.h +++ b/linux/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 @@ -1315,6 +1388,8 @@ 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 */ |