gst

type Pipeline interface {
	Src() string
	Sample() chan types.Sample
	// attach sink or src to pipeline
	AttachAppsink(sinkName string)
	AttachAppsrc(srcName string)
	// control pipeline lifecycle
	Play()
	Pause()
	Destroy()
	Push(buffer []byte)
	// modify the property of a bin
	SetPropInt(binName string, prop string, value int) bool
	SetCapsFramerate(binName string, numerator, denominator int) bool
	SetCapsResolution(binName string, width, height int) bool
	// emit video keyframe
	EmitVideoKeyframe() bool
}