gg::IObserver Class Reference

Every observer interested in listening to IVideoSource data must implement this interface, which defines the observer (subscriber) part of the observer design pattern (aka subscriber-publisher). More...

#include <iobserver.h>

Inheritance diagram for gg::IObserver:

Public Member Functions
virtual	~IObserver ()
virtual void	update (VideoFrame &frame)=0

Detailed Description

Every observer interested in listening to IVideoSource data must implement this interface, which defines the observer (subscriber) part of the observer design pattern (aka subscriber-publisher).

Attention

In Python: an intermediate node in a video processing pipeline should extend the IObservableObserver class (not available in C++) instead of IObservable and IObserver. Below is the source code for a sample processing node in Python.

from pygiftgrab import IObservableObserver

class MyProcNode(IObservableObserver):

    def __init__(self):
        super(MyProcNode, self).__init__()

    def update(self, frame):
        # Implement gg::IObserver::update(frame)
        pass

Constructor & Destructor Documentation

~IObserver()

virtual gg::IObserver::~IObserver ( )

inlinevirtual

Member Function Documentation

update()

virtual void gg::IObserver::update ( VideoFrame &  frame )

pure virtual

Parameters

frame

Implemented in gg::IVideoTarget.

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

• src/api/iobserver.h