audiosample.h

rtp在linux下的实现

// AudioSample.h: interface for the AudioSample class.
//
//////////////////////////////////////////////////////////////////////

#ifndef AFX_AUDIOSAMPLE_H__963A2A54_7AFE_4DE9_BF2A_1E79F911E37B__INCLUDED_
#define AFX_AUDIOSAMPLE_H__963A2A54_7AFE_4DE9_BF2A_1E79F911E37B__INCLUDED_

#ifdef WIN32
#include <windows.h>	// required by mmsystem.h
#include <mmsystem.h>	// required for WAVEFORMATEX structure
#else
#include "linTypes.h"
#endif

#include "WaveFormats.h"
#include "TraceUser.h"

class AudioSampleManager;
class RTPPacket;

class AudioSample :
	public TraceUser
{
friend class AudioSampleManager;
public:
	virtual ~AudioSample();
	bool operator <  (AudioSample &);
	bool operator >= (AudioSample &);
	int GetFormat(WAVEFORMATEX *waveFormat);
	int SetFormat(WAVEFORMATEX waveFormat);
	int BufferSize();
	int DataSize();
	int SilenceSize();
	int	MinFrameDuration();
	int	MinFrameSize();
	int SetDataSize(int dataSize);
	char * Data();
	int GetDuration();
	int SetSilenceDuration(int milliseconds);
	int GetSilenceDuration();
	RTPPacket* RTPHeader();
	int SetRTPHeader(RTPPacket *headerPtr);
	int AddRef();
	int Release();
protected:
	virtual int SetTraceLevel();
private:
	int Initialize(AudioSampleManager *manager, int size);
	int Uninitialize();
	AudioSample(AudioSampleManager *audioSampleManager, int size);
	AudioSample(AudioSampleManager *audioSampleManager);
private:
	WAVEFORMATEX format;
	int bufferSize;
	int dataSize;
	char *data;
	RTPPacket *rtpHeader;
	int refCount;
	int silenceLengthMilliseconds;
	AudioSampleManager *manager;
	int minFrameSize;		// no. of bytes in the minimum sized frame for this format
	int minFrameDuration;	// duration (in microseconds) of the minimum frame for this format
};

#endif // !defined(AFX_AUDIOSAMPLE_H__963A2A54_7AFE_4DE9_BF2A_1E79F911E37B__INCLUDED_)