text: 
  #ifndef SND_STUBS_H
  #define SND_STUBS_H
  
  #include "engine/ienginevoice.h"
  
  class CEngineVoiceStub : public IEngineVoice
  {
  public:
  	virtual bool IsHeadsetPresent( int iController ) { return false; }
  	virtual bool IsLocalPlayerTalking( int iController ) { return false; }
  
  	virtual void AddPlayerToVoiceList( XUID xPlayer, int iController, uint64 uiFlags ) {}
  	virtual void RemovePlayerFromVoiceList( XUID xPlayer, int iController ) {}
  
  	virtual void GetRemoteTalkers( int *pNumTalkers, XUID *pRemoteTalkers )
  	{
  		if ( pNumTalkers )
  			*pNumTalkers = 0;
  	}
  
  	virtual bool VoiceUpdateData( int iController ) { return false; }
  	virtual void GetVoiceData( int iController, const byte **ppvVoiceDataBuffer, unsigned int *pnumVoiceDataBytes )
  	{
  		if ( ppvVoiceDataBuffer )
  			*ppvVoiceDataBuffer = NULL;
  		if ( pnumVoiceDataBytes )
  			*pnumVoiceDataBytes = NULL;
  	}
  	virtual void VoiceResetLocalData( int iController ) {}
  
  	virtual void SetPlaybackPriority( XUID remoteTalker, int iController, int iAllowPlayback ) {}
  	virtual void PlayIncomingVoiceData( XUID xuid, const byte *pbData, unsigned int dwDataSize, const bool *bAudiblePlayers = NULL ) {}
  
  	virtual void RemoveAllTalkers() {}
  };
  
  CEngineVoiceStub *Audio_GetEngineVoiceStub();
  
  
  IEngineVoice *Audio_GetEngineVoiceSteam();
  
  
  #endif
  