svlFilterBase class

Every filter of the cisstStereoVision library is derived from the baseclass svlFilterBase.

Methods to be implemented

Name	Description
default constructor	Typically, input and output connectors and their supported sample types are added in the default constructor.
`int Initialize(svlSample * syncInput, svlSample * syncOutput)`	Input sample prototype for the synchronous input is stored in `syncInput`. If the filter has outputs, the `Initialize` method is responsible for providing sample prototypes for the filters that may be connected to them. The sample prototype for the synchronous output needs to be passed along in `syncOutput`. Sample prototypes for the asynchronous outputs need to be pushed to the corresponding outputs.
`int Process(svlProcInfo * procInfo, svlSample * syncInput, svlSample * syncOutput)`	The synchronous input sample is stored in `syncInput`. If the filter has outputs, the synchronous output sample needs to be passed along in `syncOutput`. Samples for the asynchronous outputs may be pushed to the corresponding outputs.

Name	Description
`int OnConnectInput(svlFilterInput & input, svlStreamType type)`
`int OnStart(unsigned int procCount)`
`void OnStop(void)`
`int Release(void)`

Name	Description
`bool IsInitialized(void)`
`bool IsRunning(void)`
`unsigned int GetFrameCounter(void)`
`svlFilterInput * GetInput(void)`
`svlFilterOutput * GetOutput(void)`
`svlFilterInput * GetInput(std::string & inputname)`
`svlFilterOutput * GetOutput(std::string & outputname)`
`void SetEnable(bool & enable)`
`void GetEnable(bool & enable)`
`void Enable(void)`
`void Disable(void)`
`bool IsEnabled(void)`
`bool IsDisabled(void)`

Name	Description
`svlFilterInput * AddInput(std::string & inputName, bool trunk)`
`svlFilterOutput * AddOutput(std::string & outputName, bool trunk)`
`int AddInputType(std::string & inputname, svlStreamType type)`
`int SetOutputType(std::string & outputname, svlStreamType type)`
`void SetAutomaticOutputType(bool autotype)`
`int IsDataValid(svlStreamType type, svlSample * data)`
`bool IsNewSample(svlSample * sample)`