OpalFactoryCodec Class Reference

#include <opalpluginmgr.h>

Inherits PObject.

Public Member Functions
virtual struct PluginCodec_Definition *	GetDefinition ()
virtual PString	GetInputFormat () const =0
virtual PString	GetOutputFormat () const =0
virtual int	Encode (const void *from, unsigned *fromLen, void *to, unsigned *toLen, unsigned int *flag)=0
virtual unsigned int	GetSampleRate () const =0
virtual unsigned int	GetBitsPerSec () const =0
virtual unsigned int	GetFrameTime () const =0
virtual unsigned int	GetSamplesPerFrame () const =0
virtual unsigned int	GetBytesPerFrame () const =0
virtual unsigned int	GetRecommendedFramesPerPacket () const =0
virtual unsigned int	GetMaxFramesPerPacket () const =0
virtual BYTE	GetRTPPayload () const =0
virtual PString	GetSDPFormat () const =0

Detailed Description

Class for codcs which is accessible via the abstract factory functions. The code would be :

PFactory<OpalFactoryCodec>::CreateInstance(conversion);

to create an instance, where conversion is (eg) "L16:G.711-uLaw-64k"

Member Function Documentation

virtual int OpalFactoryCodec::Encode ( const void *  from, unsigned *  fromLen, void *  to, unsigned *  toLen, unsigned int *  flag  )

pure virtual

Take the supplied data and apply the conversion specified by CreateInstance call (above). When this method returns, toLen contains the number of bytes placed in the destination buffer.

Parameters

from	pointer to the source data
fromLen	number of bytes in the source data to process
to	pointer to the destination buffer, which contains the output of the conversion
toLen	Number of available bytes in the destination buffer
flag	Typically, this is not used.

virtual unsigned int OpalFactoryCodec::GetBitsPerSec ( ) const

pure virtual

Return the bitsPerSec field of PluginCodec_Definition for this codec

virtual unsigned int OpalFactoryCodec::GetBytesPerFrame ( ) const

pure virtual

Return the bytesPerFrame field of PluginCodec_Definition for this codec

virtual struct PluginCodec_Definition* OpalFactoryCodec::GetDefinition ( )

inlinereadvirtual

Return the PluginCodec_Definition, which describes this codec

virtual unsigned int OpalFactoryCodec::GetFrameTime ( ) const

pure virtual

Return the nmPerFrame field of PluginCodec_Definition for this codec

virtual PString OpalFactoryCodec::GetInputFormat ( ) const

pure virtual

Return the sourceFormat field of PluginCodec_Definition for this codec

virtual unsigned int OpalFactoryCodec::GetMaxFramesPerPacket ( ) const

pure virtual

Return the maxFramesPerPacket field of PluginCodec_Definition for this codec

virtual PString OpalFactoryCodec::GetOutputFormat ( ) const

pure virtual

Return the destFormat field of PluginCodec_Definition for this codec

virtual unsigned int OpalFactoryCodec::GetRecommendedFramesPerPacket ( ) const

pure virtual

Return the recommendedFramesPerPacket field of PluginCodec_Definition for this codec

virtual BYTE OpalFactoryCodec::GetRTPPayload ( ) const

pure virtual

Return the rtpPayload field of PluginCodec_Definition for this codec

virtual unsigned int OpalFactoryCodec::GetSampleRate ( ) const

pure virtual

Return the sampleRate field of PluginCodec_Definition for this codec

virtual unsigned int OpalFactoryCodec::GetSamplesPerFrame ( ) const

pure virtual

Return the samplesPerFrame field of PluginCodec_Definition for this codec

virtual PString OpalFactoryCodec::GetSDPFormat ( ) const

pure virtual

Return the sampleRate field of PluginCodec_Definition for this codec

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

• opalpluginmgr.h