Merge branch 'ba_2016_heimes' of https://git.rwth-aachen.de/ita/ITADataSources into ba_2016_heimes

CMakeLists.txt

@@ -110,23 +110,22 @@ endif( )
 
 if( ITA_DATA_SOURCES_WITH_NET_AUDIO )
 	list( APPEND ITADataSourcesHeader
-		"include/ITANetAudioClient.h"
-		"include/ITANetAudioMessage.h"
-		"include/ITANetAudioProtocol.h"
-		"include/ITANetAudioServer.h"
 		"include/ITANetAudioStream.h"
-		"include/ITANetAudioStreamingClient.h"
+		"include/ITANetAudioSampleServer.h"
 		"include/ITANetAudioStreamingServer.h"
-		"include/ITANetAudioStreamingClient.h"
 		)
 	list( APPEND ITADataSourcesSources
 		"src/ITANetAudioClient.cpp"
+		"src/ITANetAudioClient.h"
 		"src/ITANetAudioMessage.cpp"
-		"src/ITANetAudioProtocol.cpp"
+		"src/ITANetAudioMessage.h"
+		"src/ITANetAudioProtocol.h"
+		"src/ITANetAudioServer.cpp"
+		"src/ITANetAudioServer.h"
 		"src/ITANetAudioStream.cpp"
 		"src/ITANetAudioStreamingClient.cpp"
+		"src/ITANetAudioStreamingClient.h"
 		"src/ITANetAudioStreamingServer.cpp"
-		"src/ITANetAudioServer.cpp"
 		)	
 endif( )
 

apps/ita_whad/main.cpp

@@ -32,7 +32,7 @@ int main( int, char** )
 #ifdef ITA_WHAD_WITH_ASIO
 
 	string sASIOFileName = "ita_whad_asio.txt";
-	FILE* PASIOFile = fopen( sASIOFileName.c_str(), "w" );
+	FILE* pASIOFile = fopen( sASIOFileName.c_str(), "w" );
 
 	ITAsioInitializeLibrary();
 
@@ -44,13 +44,23 @@ int main( int, char** )
 	cout << " ### ASIO ### " << endl;
 	for( long i = 0; i < lASIODrivers; i++ )
 	{
-		cout << "[" << i + 1 << "] \"" << ITAsioGetDriverName( i ) << "\"" << endl;
+		std::string sDriverName = ITAsioGetDriverName( i );
+		ASIOError ae = ITAsioInitializeDriver( i );
+		long iIn = -1, iOut = -1;
+		
+		if( ae == ASE_OK )
+		{
+			ITAsioGetChannels( &iIn, &iOut );
+			ITAsioFinalizeDriver();
+		}
+
+		cout << "[" << i + 1 << "] \"" << sDriverName << "\" (" << iIn << " in, " << iOut << " out)"  << endl;
 	}
 	cout << endl;
 
 	ITAsioFinalizeLibrary();
 
-	fclose( PASIOFile );
+	fclose( pASIOFile );
 
 #endif // ITA_WHAD_WITH_ASIO
 #ifdef ITA_WHAD_WITH_PORTAUDIO
@@ -79,7 +89,7 @@ int main( int, char** )
 
 	fclose( pPAFile );
 
-#endif // ITA_WHAD_WITH:PORTAUDIO
+#endif // ITA_WHAD_WITH_PORTAUDIO
 
 	return 0;
 }

include/ITANetAudioSampleServer.h

+/*
+ * ----------------------------------------------------------------
+ *
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2017
+ *
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
+ *
+ */
+
+#ifndef INCLUDE_WATCHER_ITA_NET_AUDIO_SAMPLE_SERVER
+#define INCLUDE_WATCHER_ITA_NET_AUDIO_SAMPLE_SERVER
+
+#include <ITADataSourcesDefinitions.h>
+#include <ITANetAudioStreamingServer.h>
+#include <ITADataSourceRealization.h>
+
+
+//! Sample-generation class with abstract method for providing samples
+/*
+ * This ready-to-use class helps to provide samples for a NetAudio streaming server with
+ * a single method for processing that has to be implemented ...
+ * ... just derive and implement Process() method. Have a look at Zero() method
+ * for exemplary usage of sample buffer.
+ */ 
+class ITA_DATA_SOURCES_API CITASampleProcessor : public ITADatasourceRealization
+{
+public:
+	//! Create a sample processor with streaming parameters
+	/*
+	 * @param[in] iNumChannels Channels provided
+	 * @param[in] dSampleRate Audio processing sampling rate
+	 * @param[in] iBlockLength Audio processing block length / buffer size
+	 */ 
+	inline CITASampleProcessor( const int iNumChannels, const double dSampleRate, const int iBlockLength )
+		: ITADatasourceRealization( ( unsigned int ) ( iNumChannels ), dSampleRate, ( unsigned int ) ( iBlockLength ) )
+	{
+		m_vvfSampleBuffer.resize( iNumChannels );
+		for( size_t c = 0; c < iNumChannels; c++ )
+			m_vvfSampleBuffer[ c ].resize( iBlockLength );
+
+		Zero();
+	};
+
+	//! Sets all channels and samples to zero
+	inline void Zero()
+	{
+		/* 
+		 * Use this as an example how to work with the buffer structure.
+		*/
+		
+		// Iterate over channels
+		for( size_t c = 0; c < m_vvfSampleBuffer.size(); c++ ) 
+		{
+			std::vector< float >& vfSingleChannelSampleBuffer( m_vvfSampleBuffer[ c ] ); // One channel
+			
+			// Iterate over samples of channel
+			for( size_t n = 0; n < vfSingleChannelSampleBuffer.size(); n++ )
+			{
+				float& fSample( vfSingleChannelSampleBuffer[ n ] ); // One sample
+				fSample = 0.0f; // -> Manipulation
+			}
+		}
+	};
+	
+	//! Process samples (overwrite this virtual method)
+	/**
+	  * Method that is called in audio streaming context and requests
+	  * to produce or copy audio samples into the internal buffer m_vvfSampleBuffer
+	  *
+	  * @param[in] pStreamInfo Information over streaming status, i.e. sample count and time stamp
+	  *
+	  */
+	virtual void Process( const ITAStreamInfo* pStreamInfo ) =0;
+
+protected:
+	std::vector< std::vector< float > > m_vvfSampleBuffer; //!< Multi-channel sample buffer to be filled
+
+private:
+	//! Delegate internal buffer to audio stream (ITADatasource)
+	inline void ProcessStream( const ITAStreamInfo* pInfo )
+	{
+		Process( pInfo );
+
+		for( size_t c = 0; c < m_vvfSampleBuffer.size(); c++ )
+		{
+			float* pfData = GetWritePointer( ( unsigned int ) ( c ) );
+			for( size_t n = 0; n < m_vvfSampleBuffer[ c ].size(); n++ )
+				pfData[ n ] = m_vvfSampleBuffer[ c ][ n ];
+		}
+
+		IncrementWritePointer();
+	};
+};
+
+//! Network audio sample server (for providing samples via derived generator class)
+/**
+  * Audio sample transmitter for a networked sample callback function that can connect via TCP/IP.
+  *
+  * @sa CITANetAudioStream CITANetAudioStreamingServer CITASampleProcessor
+  * @note not thread-safe
+  */
+class ITA_DATA_SOURCES_API CITANetAudioSampleServer : public CITANetAudioStreamingServer
+{
+public:
+	inline CITANetAudioSampleServer( CITASampleProcessor* pProcessor )
+		: m_pSampleProcessor( pProcessor )
+	{
+		SetInputStream( m_pSampleProcessor );
+	};
+
+	inline ~CITANetAudioSampleServer()
+	{};
+
+private:
+	//! Prohibit public access to streaming context and delegate
+	inline void SetInputStream( ITADatasource* pDataSource )
+	{
+		CITANetAudioStreamingServer::SetInputStream( pDataSource );
+	};
+
+	//! Prohibit public access to streaming context and delegate
+	inline ITADatasource* GetInputStream() const
+	{
+		return CITANetAudioStreamingServer::GetInputStream();
+	};
+
+	CITASampleProcessor* m_pSampleProcessor; //!< Callback / sample processor
+};
+
+#endif // INCLUDE_WATCHER_ITA_NET_AUDIO_SAMPLE_SERVER

include/ITANetAudioStream.h

@@ -26,9 +26,6 @@
 
 #include <string>
 #include <vector>
-#include <iostream>
-#include <fstream>
-using namespace std;
 
 
 class CITANetAudioStreamingClient;
@@ -38,7 +35,7 @@ class ITABufferedDataLoggerImplAudio;
 
 //! Network audio stream
 /**
-  * Audio streaming for a signal source that is connected via TCP/IP.
+  * Audio streaming for a signal source that is connected via TCP/IP or UDP.
   * The network audio stream behaves like a client and receives samples
   * from a network audio stream server, CITANetAudioStreamingSearver.
   * 
@@ -46,11 +43,13 @@ class ITABufferedDataLoggerImplAudio;
   * block the streaming processing, because it is decoupled from the 
   * network connection and forwards samples from an internal ring buffer.
   * If the buffer runs out of samples, zeros will be return. If the buffer
-  * overruns, the sample server will be suspendeb by blocking the network
+  * overruns, the sample server will be suspended by blocking the network
   * data flow.
   *
-  * Latency can be managed by either providing a small ring buffer or
-  * oversizing the ring buffer and requesting a target latency.
+  * Latency can be managed by either providing a small ring buffer and 
+  * constantly filling it uo, or by oversizing the internal ring buffer 
+  * only pushing samples to meet a target latency. This has to be 
+  * implemented by the server.
   *
   * \note not thread-safe
   */
@@ -58,7 +57,21 @@ class ITA_DATA_SOURCES_API CITANetAudioStream : public ITADatasource
 {
 public:
 	//! Constructor of a network audio stream
-	CITANetAudioStream( int iChannels, double dSamplingRate, int iBufferSize, int iRingBufferCapacity = 2048 );
+	/**
+	  * @param[in] iChannels Number of channels
+	  * @param[in] dSamplingRate Sampling rate
+	  * @param[in] iBufferSize Size of audio streaming buffer
+	  * @param[in] iRingBufferCapacity Internal ring buffer
+	  *
+	  * The ring buffer capacity should be roughly 6-10 buffer sizes long for short audio streaming buffers,
+	  * and can go down to one block in case of higher audio buffer sizes.
+	  *
+	  * The streaming parameters have to match with the server settings (yes also buffer size, that of the audio streaming context)
+	  *
+	  * @note Accept for more memory usage, oversizing the buffer does not require more CPU.
+	  */
+	CITANetAudioStream( const int iChannels, const double dSamplingRate, const int iBufferSize, const int iRingBufferCapacity = 2048 );
+
 	virtual ~CITANetAudioStream();
 
 	//! Network streaming status of client
@@ -68,16 +81,20 @@ public:
 		STOPPED, //!< Client not connected to a server and streaming stopped, i.e. not receiving samples by choice
 		CONNECTED, //!< Client is connected to a sample server (and potentially receives samples)
 		STREAMING, //!< 
-		BUFFER_UNDERRUN,
-		BUFFER_OVERRUN,
+		BUFFER_UNDERRUN, //!< Client internal audio buffer ran out of samples
+		BUFFER_OVERRUN, //!< Client internal audio ring buffer is full
 	};
 
 	//! Connect a streaming server
 	/**
-	  * @sAddress[in] Server address IP, i.e. 127.0.0.1
+	  * @sAddress[in] Server address IP (127.0.0.1, localhost, etc.)
 	  * @iPort[in] Server socket port, defaults to 12480
+	  * @return True, if connection could be established and streaming parameters match
 	  */
-	bool Connect( const std::string& sAddress, int iPort = 12480 );
+	bool Connect( const std::string& sAddress, const int iPort = 12480, const bool bUseUDP = false );
+
+	//! Disconnct safely from server
+	void Disconnect();
 
 	//! Returns the connection status
 	/**
@@ -85,43 +102,47 @@ public:
 	  */
 	bool GetIsConnected() const;
 
-	//! Set allowed latency (s)
+	//! Returns the minimal latency possible (single block)
 	/**
-	  * Sets the latency that will be used for reading and writing from ring buffer.
-	  * New samples will be requested and send if the latency / ring buffer samples
-	  * is lower than the target latency.
-	  */
-	void SetAllowedLatencySeconds( float fLatencySeconds );
-	void SetAllowedLatencySamples( int iLatencySamples );
-	float GetAllowedLatencySeconds() const;
-	int GetAllowedLatencySamples() const;
-	
-	//! Sets the minimal latency possible
-	/**
-	  * Real-time network audio is considered to process at lowest latency possible.
-	  * However, this implementation requires at least one block. Hence latency is
-	  * depending on sampling rate and block length.
-	  *
-	  * @sa GetMinimumLatencySamples()
-	  * @sa GetMinimumLatencySamples()
+	  * @return Minimum latency in seconds
 	  */
 	float GetMinimumLatencySeconds() const;
 
+	//! Returns the maximum latency possible (entire ring buffer used)
+	/**
+	  * @return Maximum latency in seconds
+	  */
 	float GetMaximumLatencySeconds() const;
+	
+	//! Returns the minimum latency possible (single block)
+	/**
+	  * @return Minimum latency in samples
+	  */
 	int GetMinimumLatencySamples() const;
+
+	//! Returns the maximum latency possible (entire ring buffer used)
+	/**
+	  * @return Maximum latency in samples
+	  */
 	int GetMaximumLatencySamples() const;
 
-	//! Sets the latency for real-time processing
+	//! Returns the NetAudio streaming logger base name
+	std::string GetNetAudioStreamLoggerBaseName() const;
+
+	//! Sets the NetAudio streaming logger base name
 	/**
-	  * Real-time network audio is considered to process at lowest latency possible.
-	  * However, this implementation requires at least one block. Hence latency is
-	  * depending on sampling rate and block length. This method basically
-	  * sets the minimum allowed latency to this value.
-	  *
-	  * @sa GetMinimumLatencySeconds()
-	  * @sa SetAllowedLatencySeconds()
+	  * If debugging is enabled, all debugging files will be named
+	  * with this suffix.
+	  * @param[in] sBaseName Base name string
+	  * 
 	  */
-	void SetLatencyForRealtime();
+	void SetNetAudioStreamingLoggerBaseName( const std::string& sBaseName );
+
+	//! Enabled/disables export of loggers
+	void SetDebuggingEnabled( bool bEnabled );
+
+	//! Logging export flag getter
+	bool GetIsDebuggingEnabled() const;
 
 	//! Returns (static) size of ring buffer
 	/**
@@ -167,6 +188,7 @@ public:
 	  */
 	void IncrementBlockPointer();
 
+
 protected:
 	//! This method is called by the networkg client and pushes samples into the ring buffer
 	/**
@@ -180,7 +202,7 @@ protected:
 	  *
 	  * @note This method is not called out of the audio streaming context but out of the network context.
 	  */
-	int Transmit( const ITASampleFrame& sfNewSamples, int iNumSamples );
+	int Transmit( const ITASampleFrame& sfNewSamples, const int iNumSamples );
 
 	//! Returns samples that can be read from ring buffer
 	/**
@@ -194,6 +216,9 @@ protected:
 	*/
 	int GetRingBufferFreeSamples() const;
 
+	//! Returns a string for the streaming status identifier
+	static std::string GetStreamingStatusString( const int iStreamingStatus );
+
 private:
 	CITANetAudioStreamingClient* m_pNetAudioStreamingClient; //!< Audio streaming network client
 
@@ -204,16 +229,17 @@ private:
 	int m_iWriteCursor; //!< Cursor where samples will be fed into ring buffer from net audio producer (always ahead)
 	bool m_bRingBufferFull; //!< Indicator if ring buffer is full (and read cursor equals write cursor)
 	ITASampleFrame m_sfRingBuffer; //!< Ring buffer
-	int m_iTargetSampleLatency; //!< Maximum allowed samples / target sample latency
 
 	int m_iStreamingStatus; //!< Current streaming status
 	double m_dLastStreamingTimeCode;
 
-	ITABufferedDataLoggerImplAudio* m_pAudioLogger; //!< Logging for the audio stream
-	ITABufferedDataLoggerImplStream* m_pStreamLogger; //!< Logging for the audio stream
-	ITABufferedDataLoggerImplNet* m_pNetLogger; //!< Logging for the network stream
-	int iAudioStreamingBlockID; //!< Audio streaming block id
-	int iNetStreamingBlockID; //!< Network streaming block id
+	ITABufferedDataLoggerImplStream* m_pAudioStreamLogger; //!< Logging for the audio stream
+	ITABufferedDataLoggerImplNet* m_pNetworkStreamLogger; //!< Logging for the network stream
+	std::string m_sNetAudioStreamLoggerBaseName;
+	bool m_bDebuggingEnabled;
+
+	int m_iAudioStreamingBlockID; //!< Audio streaming block id
+	int m_iNetStreamingBlockID; //!< Network streaming block id
 	
 	friend class CITANetAudioStreamingClient;
 };

include/ITANetAudioStreamingServer.h

-/*
- * ----------------------------------------------------------------
- *
- *		ITA core libs
- *		(c) Copyright Institute of Technical Acoustics (ITA)
- *		RWTH Aachen University, Germany, 2015-2017
- *
- * ----------------------------------------------------------------
- *				    ____  __________  _______
- *				   //  / //__   ___/ //  _   |
- *				  //  /    //  /    //  /_|  |
- *				 //  /    //  /    //  ___   |
- *				//__/    //__/    //__/   |__|
- *
- * ----------------------------------------------------------------
- *
- */
-
-#ifndef INCLUDE_WATCHER_ITA_NET_AUDIO_STREAMING_SERVER
-#define INCLUDE_WATCHER_ITA_NET_AUDIO_STREAMING_SERVER
-
-#include <ITADataSourcesDefinitions.h>
-
-#include <ITANetAudioProtocol.h>
-
-#include <string>
-#include <vector>
+/*
+ * ----------------------------------------------------------------
+ *
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2017
+ *
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
+ *
+ */
+
+#ifndef INCLUDE_WATCHER_ITA_NET_AUDIO_STREAMING_SERVER
+#define INCLUDE_WATCHER_ITA_NET_AUDIO_STREAMING_SERVER
+
+#include <ITADataSourcesDefinitions.h>
+
+#include <ITASampleFrame.h>
+#include <ITAStopWatch.h>
+
+#include <VistaInterProcComm/Concurrency/VistaThreadLoop.h>
+
+#include <string>
+#include <vector>
 #include <iostream>
-#include <fstream>
-
-#include <ITANetAudioProtocol.h>
-
-#include <VistaInterProcComm/Concurrency/VistaThreadLoop.h>
-#include <ITASampleFrame.h>
-
-class ITADatasource;
-class CITANetAudioMessage;
-class CITANetAudioProtocol;
-class CITANetAudioServer;
-class CITANetAudioMessage;
-class VistaTCPSocket;
-
-//! Network audio sample server (for connecting a net audio stream)
-/**
- * Audio sample transmitter for a networked signal source that can connect via TCP/IP.
- *
- * \sa CITANetAudioStream
- * \note not thread-safe
- */
-class ITA_DATA_SOURCES_API CITANetAudioStreamingServer : public VistaThreadLoop
-{
-public:
-
-	enum UpdateStrategy
-	{
-		AUTO = 1, //!< Automatic update rate based on sample rate and block length of client (default)
-		ADAPTIVE, //!< Adaptive update rate, adjusts for drifting clocks
-		CONSTANT, //!< Set a user-defined update rate (may cause forced pausing of sample feeding or dropouts on client side)
-	};
-
-	CITANetAudioStreamingServer();
-	virtual ~CITANetAudioStreamingServer() {};
-
-	bool Start( const std::string& sAddress, int iPort );
-	bool IsClientConnected() const;
-	std::string GetNetworkAddress() const;
-	int GetNetworkPort() const;
-	bool LoopBody();
-	void Stop();
-
-	void SetInputStream( ITADatasource* pInStream );
-	
-	int GetNetStreamBlocklength() const;
-	int GetNetStreamNumberOfChannels() const;
-	double GetNetStreamSampleRate() const;
-
-	void SetAutomaticUpdateRate();
-
-protected:
-	ITADatasource* GetInputStream() const;
-
-private:
-	CITANetAudioServer* m_pNetAudioServer;
-	ITASampleFrame m_sfTempTransmitBuffer;
-	ITADatasource* m_pInputStream;
-	VistaConnectionIP* m_pConnection;
-
-	CITANetAudioProtocol::StreamingParameters m_oServerParams;
-	CITANetAudioMessage* m_pMessage;
-
-	int m_iUpdateStrategy;
-	int m_iClientRingBufferFreeSamples;
-
-	friend class CITANetAudioServer;
-};
-
-#endif // INCLUDE_WATCHER_ITA_NET_AUDIO_STREAMING_SERVER
+
+
+class ITADatasource;
+class CITANetAudioMessage;
+class CITANetAudioProtocol;
+class CITANetAudioServer;
+class CITANetAudioMessage;
+class CITABufferedDataLoggerImplServer;
+class VistaConnectionIP;
+
+
+//! Network audio streaming server (for connecting a net audio stream) with an ITADataSource connection
+/**
+  * Audio sample transmitter for a networked signal source that can connect via TCP/IP.
+  *
+  * @sa CITANetAudioStream
+  * @note not thread-safe
+  */
+class ITA_DATA_SOURCES_API CITANetAudioStreamingServer : public VistaThreadLoop
+{
+public:
+
+	CITANetAudioStreamingServer();
+	~CITANetAudioStreamingServer();
+
+	//! Start to listen on a socket (blocking)
+	bool Start( const std::string& sAddress, const int iPort, const double dTimeIntervalCientSendStatus, const bool bUseUDP = false );
+	bool IsClientConnected() const;
+	std::string GetNetworkAddress() const;
+	int GetNetworkPort() const;
+
+	void Stop();
+
+	void SetInputStream( ITADatasource* pInStream );
+
+	int GetNetStreamBlocklength() const;
+	int GetNetStreamNumberOfChannels( ) const;
+	double GetNetStreamSampleRate( ) const;
+
+	double GetEstimatedCorrFactor( ) const;
+	void SetEstimatedCorrFactor( double dcorrFactor );
+
+
+	//! Enabled/disables export of loggers
+	void SetDebuggingEnabled( bool bEnabled );
+
+	//! Logging export flag getter
+	bool GetIsDebuggingEnabled() const;
+
+	int GetSendingBlockLength() const;
+	void SetSendingBlockLength( const int iSendingBlockLength );
+
+	void SetTargetLatencySamples( const int iTargetLatency );
+	int GetTargetLatencySamples() const;
+
+	void SetServerLogBaseName( const std::string& sBaseName );
+	std::string GetServerLogBaseName() const;
+
+	bool LoopBody();
+
+protected:
+	ITADatasource* GetInputStream() const;
+
+private:
+	CITANetAudioServer* m_pNetAudioServer;
+	ITASampleFrame m_sfTempTransmitBuffer;
+	ITADatasource* m_pInputStream;
+	VistaConnectionIP* m_pConnection;
+
+	CITANetAudioMessage* m_pMessage;
+
+	CITABufferedDataLoggerImplServer* m_pServerLogger;
+	std::string m_sServerLogBaseName;
+	ITAStopWatch m_swTryReadBlockStats, m_swTryReadAccessStats;
+	bool m_bDebuggingEnabled;
+
+	int m_iServerBlockId;
+	double m_dLastTimeStamp;
+	double m_dEstimatedCorrFactor;
+
+	int m_iTargetLatencySamples;
+	int m_iEstimatedClientRingBufferFreeSamples;