v4l2_bt_timings Struct Reference

#include <videodev2.h>

Data Fields
__u32	width
__u32	height
__u32	interlaced
__u32	polarities
__u64	pixelclock
__u32	hfrontporch
__u32	hsync
__u32	hbackporch
__u32	vfrontporch
__u32	vsync
__u32	vbackporch
__u32	il_vfrontporch
__u32	il_vsync
__u32	il_vbackporch
__u32	standards
__u32	flags
__u32	reserved [14]

Detailed Description

struct v4l2_bt_timings - BT.656/BT.1120 timing data : total width of the active video in pixels : total height of the active video in lines : Interlaced or progressive : Positive or negative polarities : Pixel clock in HZ. Ex. 74.25MHz->74250000 :Horizontal front porch in pixels : Horizontal Sync length in pixels : Horizontal back porch in pixels :Vertical front porch in lines : Vertical Sync length in lines : Vertical back porch in lines :Vertical front porch for the even field (aka field 2) of interlaced field formats : Vertical Sync length for the even field (aka field 2) of interlaced field formats :Vertical back porch for the even field (aka field 2) of interlaced field formats : Standards the timing belongs to : Flags : Reserved fields, must be zeroed.

A note regarding vertical interlaced timings: height refers to the total height of the active video frame (= two fields). The blanking timings refer to the blanking of each field. So the height of the total frame is calculated as follows:

tot_height = height + vfrontporch + vsync + vbackporch + il_vfrontporch + il_vsync + il_vbackporch

The active height of each field is height / 2.

Definition at line 1018 of file videodev2.h.

Field Documentation

__u32 flags

Definition at line 1034 of file videodev2.h.

__u32 hbackporch

Definition at line 1026 of file videodev2.h.

__u32 height

Definition at line 1020 of file videodev2.h.

__u32 hfrontporch

Definition at line 1024 of file videodev2.h.

__u32 hsync

Definition at line 1025 of file videodev2.h.

__u32 il_vbackporch

Definition at line 1032 of file videodev2.h.

__u32 il_vfrontporch

Definition at line 1030 of file videodev2.h.

__u32 il_vsync

Definition at line 1031 of file videodev2.h.

__u32 interlaced

Definition at line 1021 of file videodev2.h.

__u64 pixelclock

Definition at line 1023 of file videodev2.h.

__u32 polarities

Definition at line 1022 of file videodev2.h.

__u32 reserved[14]

Definition at line 1035 of file videodev2.h.

__u32 standards

Definition at line 1033 of file videodev2.h.

__u32 vbackporch

Definition at line 1029 of file videodev2.h.

__u32 vfrontporch

Definition at line 1027 of file videodev2.h.

__u32 vsync

Definition at line 1028 of file videodev2.h.

__u32 width

Definition at line 1019 of file videodev2.h.

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The documentation for this struct was generated from the following file:

• include/uapi/linux/videodev2.h