www.pudn.com > demo_client_VE_Lite.zip > GIPS_common_types.h

 
// GIPS_common_types.h 
 
#ifndef GIPS_COMMON_TYPES_H 
#define GIPS_COMMON_TYPES_H 
 
 
#define FILE_FORMAT_PCM_FILE 0 
#define FILE_FORMAT_WAV_FILE 1 
#define FILE_FORMAT_COMPRESSED_FILE 2 
 
 
 
// GIPS_encryption 
// This is a class that should be overloaded to enable encryption 
 
class GIPS_encryption 
{ 
public: 
    virtual void encrypt(int channel_no, unsigned char * in_data,  
		unsigned char * out_data, int bytes_in, int * bytes_out) = 0; 
 
    virtual void decrypt(int channel_no, unsigned char * in_data,  
		unsigned char * out_data, int bytes_in, int * bytes_out) = 0; 
 
    virtual void encrypt_rtcp(int channel_no, unsigned char * in_data,  
		unsigned char * out_data, int bytes_in, int * bytes_out) = 0; 
 
    virtual void decrypt_rtcp(int channel_no, unsigned char * in_data,  
		unsigned char * out_data, int bytes_in, int * bytes_out) = 0; 
}; 
 
// External transport protocol 
// This is a class that should be implemented by the customer IF 
// a different transport protocol than IP/UDP/RTP is wanted. The 
// standard data transport protocol used by VoiceEngine is IP/UDP/RTP 
// according to the SIP-standard. 
class GIPS_transport 
{ 
public: 
    virtual int SendPacket(int channel, const void *data, int len) = 0; 
    virtual int SendRTCPPacket(int channel, const void *data, int len) = 0; 
}; 
 
 
 
////////////////////////////////////////////////////////////////////// 
// GIPS_CodecInst 
// 
// Each codec supported by the GIPS Conference Engine can be  
// described by this structure. 
// 
// The following codecs are supported today (if included in the delivery ): 
// 
// - G.711 u-Law 
// - G.711 a-Law 
// - GIPS Enhanced G.711 u-Law 
// - GIPS Enhanced G.711 A-Law 
// - GIPS iPCM-wb 
// - GIPS iLBC 
// - GIPS iSAC 
// - G.729 (The user of GIPS Conference Engine is responsible for licensing of IPR for this codec)  
// 
// 
// Note that the GIPS NetEQ is included on the receiving side for all 
// codecs. NetEQ is a patented GIPS technology that adaptively compen-, 
// sates for jitter, and at the same time conceals errors due to lost 
// packets. NetEQ delivers improvements in sound quality while mini- 
// mizing buffering latency. 
////////////////////////////////////////////////////////////////////// 
 
struct GIPS_CodecInst 
{ 
	int pltype; 
	char plname[32]; 
	int plfreq; 
	int pacsize; 
	int channels; 
	int rate; 
}; 
 
 
// External read and write functions 
// This is a class that should be implemented by the customer IF 
// the functions GIPS***_ConvertWavToPCM() or GIPS***_PlayPCM() are used 
 
class  InStream  
{ 
public: 
	virtual int Read(void *buf,int len) = 0; 
	// len - size in bytes that should be read 
	// returns the size in bytes read (=len before end and =[0..len-1] at end similar to fread) 
 
	// Only internal usage 
	virtual int Rewind() {return 0;} 
 
	// Destructor 
	virtual ~InStream() {}; 
}; 
 
class  OutStream  
{ 
public: 
	virtual bool Write(const void *buf,int len) = 0; 
	// true for ok, false for fail 
 
	// Only internal usage 
	virtual int Rewind() {return -1;} 
 
	// Destructor 
	virtual ~OutStream() {}; 
}; 
 
 
#endif