AppSink.connectNewPreroll

Connect to NewPreroll signal.

Signal that a new preroll sample is available.

This signal is emitted from the streaming thread and only when the "emit-signals" property is true.

The new preroll sample can be retrieved with the "pull-preroll" action signal or gstapp.app_sink.AppSink.pullPreroll either from this signal callback or from any other thread.

Note that this signal is only emitted when the "emit-signals" property is set to true, which it is not by default for performance reasons.

class AppSink

ulong

connectNewPreroll

(

)

(

T callback

Flag!"After" after = No.After

)

if (

isCallable!T &&

is(ReturnType!T == gst.types.FlowReturn)

(

Parameters!T.length < 1 ||

(

ParameterStorageClassTuple!T[0] == ParameterStorageClass.none &&

is(Parameters!T[0] : gstapp.app_sink.AppSink)

)

Parameters!T.length < 2

)

Parameters

callback T: signal callback delegate or function to connect
gst.types.FlowReturn callback(gstapp.app_sink.AppSink appSink)
appSink the instance the signal is connected to (optional)
Returns
after Flag!"After": Yes.After to execute callback after default handler, No.After to execute before (default)

Return Value

Type: ulong

Signal ID