History

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

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.

Hans Verkuil committed 13 years ago

Commit 7f681271 parent 5d2db811 file · +10 −0Browse files

Showing the changes to include/uapi/linux (1 of 1 file). Show all

Unified · Split

include/uapi/linux/videodev2.h+10−0
@@ -1057,6 +1057,16 @@ struct v4l2_bt_timings { · 1056 unmodified lines
1057 or used depends on the hardware. */1057 or used depends on the hardware. */
1058#define V4L2_DV_FL_HALF_LINE (1 << 3)1058#define V4L2_DV_FL_HALF_LINE (1 << 3)
1059 1059
1060/* A few useful defines to calculate the total blanking and frame sizes */
1061#define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1062 (bt->hfrontporch + bt->hsync + bt->hbackporch)
1063#define V4L2_DV_BT_FRAME_WIDTH(bt) \
1064 (bt->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1065#define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1066 (bt->vfrontporch + bt->vsync + bt->vbackporch + \
1067 bt->il_vfrontporch + bt->il_vsync + bt->il_vbackporch)
1068#define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1069 (bt->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1060 1070
1061/** struct v4l2_dv_timings - DV timings1071/** struct v4l2_dv_timings - DV timings
1062 * @type: the type of the timings1072 * @type: the type of the timings