v4l2

package module

v0.0.0-...-23c5d32 Latest Latest Go to latest Published: Jan 1, 2019 License: Apache-2.0 Imports: 7 Imported by: 0

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Repository

github.com/rsfreitas/go-v4l2

Links

Open Source Insights

README ¶

go-v4l2

A video4linux Go module

Documentation ¶

Index ¶

type Options
type V4l2
type V4l2Channel
type V4l2Image
type V4l2ImageFormat
type V4l2Model
type V4l2Setting
- func V4l2SettingFromInt(v uint32) V4l2Setting

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Options ¶

type Options struct {
	Device   string
	Width    int
	Height   int
	Format   V4l2ImageFormat
	Model    V4l2Model
	Channel  V4l2Channel
	LoopBack string
}

Options is the structure used to pass the arguments when opening a video4linux2 device.

type V4l2 ¶

type V4l2 struct {
	// contains filtered or unexported fields
}

V4l2 is the representation of a video4linux2 device.

func NewLoopback ¶

func NewLoopback(device string, source *V4l2) (*V4l2, error)

func NewRPI ¶

func NewRPI(options Options) (*V4l2, error)

func NewWebcam ¶

func NewWebcam(options Options) (*V4l2, error)

func Open ¶

func Open(options Options) (*V4l2, error)

Open opens a video4linux2 device to capture frames.

func (*V4l2) Capture ¶

func (v *V4l2) Capture() (*V4l2Image, error)

Capture captures an image from the video4linux2 device.

func (*V4l2) Close ¶

func (v *V4l2) Close()

Close closes the device.

func (*V4l2) GetSetting ¶

func (v *V4l2) GetSetting(setting V4l2Setting) (int, error)

GetSetting gets the current value of a setting of a device.

func (*V4l2) SetSetting ¶

func (v *V4l2) SetSetting(setting V4l2Setting, value int) error

SetSetting adjusts a specific setting in the capture device.

type V4l2Channel ¶

type V4l2Channel int

const (
	ChannelUnknown V4l2Channel = iota
	ChannelTuner
	ChannelComposite
	ChannelSVideo
)

type V4l2Image ¶

type V4l2Image struct {
	// contains filtered or unexported fields
}

func (*V4l2Image) Height ¶

func (i *V4l2Image) Height() uint

func (*V4l2Image) Size ¶

func (i *V4l2Image) Size() uint

func (*V4l2Image) ToJpeg ¶

func (i *V4l2Image) ToJpeg(filename string) error

func (*V4l2Image) Width ¶

func (i *V4l2Image) Width() uint

type V4l2ImageFormat ¶

type V4l2ImageFormat int

const (
	ImageFormatUnknown V4l2ImageFormat = iota
	ImageFormatGray
	ImageFormatBGR24
	ImageFormatYUV420
	ImageFormatYUYV
)

type V4l2Model ¶

type V4l2Model int

const (
	ModelUnknown V4l2Model = iota
	ModelBt878
	ModelUSBWebcam
	ModelRPICamera
)

type V4l2Setting ¶

type V4l2Setting int

const (
	SettingUnknown V4l2Setting = iota
	SettingBrightness
	SettingContrast
	SettingSaturation
	SettingHue
)

func V4l2SettingFromInt ¶

func V4l2SettingFromInt(v uint32) V4l2Setting

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
examples
simple

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