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[media] videodev2.h: defines to calculate blanking and frame sizes

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It is very common to have to calculate the total width and height of the
blanking and the full frame, so add a few defines that deal with that.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2013-07-29 08:40:58 -03:00 • committed by Mauro Carvalho Chehab
commit 7f68127fa1
1 changed files with 10 additions and 0 deletions
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10
include/uapi/linux/videodev2.h
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@ -1057,6 +1057,16 @@ struct v4l2_bt_timings {
or used depends on the hardware. */
#define V4L2_DV_FL_HALF_LINE (1 << 3)
/* A few useful defines to calculate the total blanking and frame sizes */
#define V4L2_DV_BT_BLANKING_WIDTH(bt) \
(bt->hfrontporch + bt->hsync + bt->hbackporch)
#define V4L2_DV_BT_FRAME_WIDTH(bt) \
(bt->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
#define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
(bt->vfrontporch + bt->vsync + bt->vbackporch + \
bt->il_vfrontporch + bt->il_vsync + bt->il_vbackporch)
#define V4L2_DV_BT_FRAME_HEIGHT(bt) \
(bt->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
/** struct v4l2_dv_timings - DV timings
* @type: the type of the timings