| [4] | 1 | /****************************************************************************** |
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| 2 | * SAGE - Scalable Adaptive Graphics Environment |
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| 3 | * |
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| 4 | * Module: sageAudioReceiver.h |
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| 5 | * Author : Byungil Jeong, Rajvikram Singh |
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| 6 | * |
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| 7 | * Copyright (C) 2004 Electronic Visualization Laboratory, |
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| 8 | * University of Illinois at Chicago |
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| 9 | * |
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| 10 | * All rights reserved. |
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| 11 | * |
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| 12 | * Redistribution and use in source and binary forms, with or without |
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| 13 | * modification, are permitted provided that the following conditions are met: |
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| 14 | * |
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| 15 | * * Redistributions of source code must retain the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer. |
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| 17 | * * Redistributions in binary form must reproduce the above |
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| 18 | * copyright notice, this list of conditions and the following disclaimer |
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| 19 | * in the documentation and/or other materials provided with the distribution. |
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| 20 | * * Neither the name of the University of Illinois at Chicago nor |
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| 21 | * the names of its contributors may be used to endorse or promote |
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| 22 | * products derived from this software without specific prior written permission. |
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| 23 | * |
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| 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 25 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 26 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 27 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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| 28 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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| 29 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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| 30 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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| 31 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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| 32 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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| 33 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 34 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 35 | * |
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| 36 | * Direct questions, comments etc about SAGE to sage_users@listserv.uic.edu or |
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| 37 | * http://www.evl.uic.edu/cavern/forum/ |
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| 38 | * |
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| 39 | *****************************************************************************/ |
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| 40 | |
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| 41 | #ifndef SAGEAUDIORECEIVER_H_ |
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| 42 | #define SAGEAUDIORECEIVER_H_ |
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| 43 | |
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| 44 | #include "sageReceiver.h" |
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| 45 | #include "sageBlock.h" |
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| 46 | |
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| 47 | class sageAudioCircBuf; |
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| 48 | class sageEventQueue; |
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| 49 | |
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| 50 | /** |
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| 51 | * \brief instantiated by initStream message in sageAudioManager |
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| 52 | */ |
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| 53 | class sageAudioReceiver : public sageReceiver { |
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| 54 | protected: |
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| 55 | |
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| 56 | int bytesPerSample; |
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| 57 | sageAudioBlock audioNBlock; |
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| 58 | sageAudioCircBuf* buffer; /**< sageAudioCircBuf */ |
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| 59 | |
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| 60 | int syncFrame; /**< sync frame number */ |
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| 61 | |
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| 62 | sageEventQueue *eventQueue; |
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| 63 | sageSampleFmt sampleFmt; |
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| 64 | streamData *streamList; /**< list of streams */ |
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| 65 | int streamIdx; |
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| 66 | |
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| 67 | int oldFrame; |
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| 68 | int updateFrame; |
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| 69 | int reportRate; |
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| 70 | sageTimer perfTimer; |
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| 71 | unsigned long bandWidth; |
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| 72 | unsigned packetLoss; |
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| 73 | |
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| 74 | bool activeRecv; |
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| 75 | bool masterFlag; |
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| 76 | bool resetFlag; |
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| 77 | int m_senderID; |
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| 78 | |
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| 79 | public: |
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| 80 | /** |
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| 81 | * starts sageReceiver::nwReadThread()<BR> |
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| 82 | * sageReceiver::readData() is pure virtual, so it should be overriden here.<BR> |
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| 83 | * sageReceiver::nwReadThread() is just calling sageReceiver::readData(). |
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| 84 | */ |
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| 85 | virtual int addStream(int senderID); |
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| 86 | |
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| 87 | sageAudioReceiver(char *msg, sageEventQueue *queue, streamProtocol *obj, sageAudioCircBuf *buff); |
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| 88 | //virtual int readAudioData(int senderID); |
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| 89 | //virtual int readData(int senderID, sageBlockQueue *queue); |
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| 90 | |
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| 91 | /** |
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| 92 | * It defines function body of sageReceiver::readData() which is pure virtual |
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| 93 | */ |
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| 94 | virtual int readData(); |
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| 95 | virtual ~sageAudioReceiver() {} |
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| 96 | |
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| 97 | /** |
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| 98 | * just sets sageAudioReceiver::syncFrame = frame |
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| 99 | */ |
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| 100 | virtual void processSync(int frame); |
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| 101 | |
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| 102 | public: |
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| 103 | int getInstID(); |
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| 104 | int getSenderID(); |
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| 105 | bool isActive(); |
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| 106 | int getAudioId(); |
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| 107 | void setMaster(bool flag); |
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| 108 | bool isMaster(void); |
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| 109 | |
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| 110 | void setResetFlag(void); |
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| 111 | int evalPerformance(char **frameStr, char **bandStr); |
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| 112 | inline void setReportRate(int rate) { reportRate = rate; } |
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| 113 | inline void resetTimer() { perfTimer.reset(); } |
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| 114 | inline void resetBandWidth() { bandWidth = 0; } |
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| 115 | inline void resetFrame() { oldFrame = updateFrame; } |
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| 116 | |
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| 117 | }; |
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| 118 | |
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| 119 | inline int sageAudioReceiver::getInstID() |
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| 120 | { |
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| 121 | return instID; |
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| 122 | } |
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| 123 | |
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| 124 | inline int sageAudioReceiver::getSenderID() |
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| 125 | { |
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| 126 | return m_senderID; |
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| 127 | } |
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| 128 | |
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| 129 | #endif |
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