source: trunk/src/testing/include/sageAudioBridge.h @ 4

/******************************************************************************
 * SAGE - Scalable Adaptive Graphics Environment
 *
 * Module: sageAudioBridge.h
 * Author : Hyejung Hur, Byungil Jeong
 *
 * Copyright (C) 2004 Electronic Visualization Laboratory,
 * University of Illinois at Chicago
 *
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the distribution.
 *  * Neither the name of the University of Illinois at Chicago nor
 *    the names of its contributors may be used to endorse or promote
 *    products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Direct questions, comments etc about SAGE to sage_users@listserv.uic.edu or 
 * http://www.evl.uic.edu/cavern/forum/
 *
 *****************************************************************************/
 
#ifndef _SAGE_AUDIO_BRIDGE_H_
#define _SAGE_AUDIO_BRIDGE_H_

#include "streamProtocol.h"
#include "sageBlock.h"

class sageAudioBridge;
class sageAudioDup;
class sageTcpModule;
class sageUdpModule;
class messageInterface;
class bridgeSharedData;

typedef struct {
   sageAudioBridge *This;
   streamProtocol   *nwObj;
} nwAudioCheckThreadParam;

typedef struct {
   sageAudioDup *This;
   streamProtocol   *nwObj;
} nwStreamThreadParam;

typedef struct {
        char* rcvIP;
   int  rcvID;
   int  nodeID;
        int fsIdx;
   bool active;
   int sendPort;
} streamBridgeParam;

class sageAudioDup {
private:
   int sailNodeNum;
        int streamType;
        int blockSize;
        int frameRate; 
        int syncType;
        int keyframe;
        int sampleFmt;
        int samplingRate;
        int channels;
        int framePerBuffer;
   
   pthread_t thId;
   
protected:
        std::vector<streamBridgeParam*> paramList;
        int instID;
        int senderID;
        streamProtocol* instNWObj;

   bool initialized;
   bool bridgeEnd;

        int rcvNodeNum;
        sageAudioBlock audioNBlock;
                        
   static void* nwStreamThread(void *args);
                
public:
   sageAudioDup(int appID);
   ~sageAudioDup(void);

        int init(void);
        int addStream(char *msg, streamProtocol *nwObj);
        int addReceiver(char *msg, int fsIdx);
        void shutdownAllStreams(void);
   void shutdownStreams(int fsIdx);   
                
   friend class sageAudioBridge;

};

class sageAudioBridge {
private:
   sageTcpModule *tcpObj;
   sageUdpModule *udpObj;
   sageNwConfig nwCfg;
   
   sageAudioDup *dupList[MAX_INST_NUM];
   char audioIP[SAGE_IP_LEN];
   int audioPort;
   bool bridgeEnd;
 
   int initNetworks();
   messageInterface *msgInf;
   bridgeSharedData *shared;
   
   static void* nwCheckThread(void *args);
   
public:
   // ip, port  : IP address and port number where listening audio stream connections
   // inf  :  message communication object for sending messages to SAIL.
   sageAudioBridge(char *ip, int port, messageInterface *inf, bridgeSharedData *sh);
   
   // send SAIL_CONNECT_TO_ARCV to SAIL 
   int startAudioStream(int instID, int sailClientID);

   // accept streams from app
   int initStreams(char *msg, streamProtocol *nwObj);   

   // start audio stream from sageBridge to an endpoint (ARCV)
   int duplicate(int instID, char *msg, int fsIdx);
   
   // delete a duplicator instance
   int shutdownDup(int instID);
   
   // shutdown streams to an endpoint
   int shutdownStreams(int instID, int fsIdx);
   
   ~sageAudioBridge();
};

#endif