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RTP Audio System
2.0.0
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RTP Audio System
2.0.0
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00001 // ########################################################################## 00002 // #### #### 00003 // #### Master Thesis Implementation #### 00004 // #### Management of Layered Variable Bitrate Multimedia Streams over #### 00005 // #### DiffServ with A Priori Knowledge #### 00006 // #### #### 00007 // #### ================================================================ #### 00008 // #### #### 00009 // #### #### 00010 // #### Abstract Layer Description Inlines #### 00011 // #### #### 00012 // #### Copyright (C) 1999-2012 by Thomas Dreibholz #### 00013 // #### #### 00014 // #### Contact: #### 00015 // #### EMail: dreibh@iem.uni-due.de #### 00016 // #### WWW: https://www.nntb.no/~dreibh/rtpaudio #### 00017 // #### #### 00018 // #### ---------------------------------------------------------------- #### 00019 // #### #### 00020 // #### This program is free software: you can redistribute it and/or #### 00021 // #### modify it under the terms of the GNU General Public License as #### 00022 // #### published by the Free Software Foundation, either version 3 of #### 00023 // #### the License, or (at your option) any later version. #### 00024 // #### #### 00025 // #### This program is distributed in the hope that it will be useful, #### 00026 // #### but WITHOUT ANY WARRANTY; without even the implied warranty of #### 00027 // #### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #### 00028 // #### GNU General Public License for more details. #### 00029 // #### #### 00030 // #### You should have received a copy of the GNU General Public #### 00031 // #### License along with this program. If not, see #### 00032 // #### <http://www.gnu.org/licenses/>. #### 00033 // #### #### 00034 // ########################################################################## 00035 // $Id: abstractlayerdescription.h 1308 2011-12-22 07:43:26Z dreibh $ 00036 00037 00038 #ifndef ABSTRACTLAYERDESCRIPTION_H 00039 #define ABSTRACTLAYERDESCRIPTION_H 00040 00041 00042 #include "tdsystem.h" 00043 #include "framesizescalabilityinterface.h" 00044 #include "internetflow.h" 00045 00046 00057 class AbstractLayerDescription : virtual public FrameSizeScalabilityInterface 00058 { 00059 // ====== Constructor/Destructor ========================================= 00060 public: 00064 AbstractLayerDescription(); 00065 00069 virtual ~AbstractLayerDescription(); 00070 00081 inline void initLayer(const cardinal pktHeaderSize, 00082 const cardinal pktMaxSize, 00083 const double maxTransferDelay, 00084 const cardinal maxBufferDelay, 00085 const double maxLossRate, 00086 const double maxJitter, 00087 const cardinal flags); 00088 00089 00090 // ====== Bandwidth and bandwidth quality methods ======================== 00096 inline card64 getBandwidth() const; 00097 00105 inline bool setBandwidth(const double frameRate, 00106 const card64 bandwidth); 00107 00114 virtual cardinal getPacketRate(const double frameRate) const; 00115 00123 static inline card64 frameSizeToBandwidth(const double frameRate, 00124 const cardinal frameSize); 00125 00133 static inline cardinal bandwidthToFrameSize(const double frameRate, 00134 const card64 bandwidth); 00135 00136 00146 inline card64 bandwidthToBandwidth(const card64 bandwidth, 00147 const double frameRate, 00148 const cardinal bufferDelay, 00149 const cardinal newBufferDelay) const; 00150 00151 00161 card64 payloadBandwidthToBandwidth(const card64 bandwidth, 00162 const double frameRate, 00163 const cardinal bufferDelay, 00164 const cardinal newBufferDelay) const; 00165 00166 00174 virtual cardinal frameSizeToPacketRate(const double frameRate, 00175 const cardinal frameSize) const; 00176 00182 inline double getMaxTransferDelay() const; 00183 00189 inline void setMaxTransferDelay(const double maxDelay); 00190 00196 inline double getMaxLossRate() const; 00197 00203 inline void setMaxLossRate(const double maxLossRate); 00204 00210 inline double getMaxJitter() const; 00211 00217 inline void setMaxJitter(const double maxJitter); 00218 00219 00220 // ====== Frame size methods ============================================= 00229 inline bool isValidFrameSize(const double frameRate, 00230 const cardinal bufferDelay, 00231 const cardinal size) const; 00232 00241 inline cardinal getNearestValidFrameSize(const double frameRate, 00242 const cardinal bufferDelay, 00243 const cardinal size) const; 00244 00253 virtual cardinal payloadToRaw(const double frameRate, 00254 const cardinal payload, 00255 const cardinal bufferDelay) const; 00256 00265 virtual cardinal rawToPayload(const double frameRate, 00266 const cardinal raw, 00267 const cardinal bufferDelay) const; 00268 00269 00270 // ====== Scaling and utilization methods, for current buffer delay ====== 00277 inline cardinal getMinFrameSize(const double frameRate) const; 00278 00285 inline cardinal getMaxFrameSize(const double frameRate) const; 00286 00293 inline cardinal getPeakFrameSizeForSize(const double frameRate, 00294 const cardinal frameSize) const; 00295 00302 inline cardinal getPacketCountForSize(const double frameRate, 00303 const cardinal frameSize) const; 00304 00312 inline double getPrevFrameSizeForSize(const double frameRate, 00313 const cardinal frameSize) const; 00314 00322 inline double getNextFrameSizeForSize(const double frameRate, 00323 const cardinal frameSize) const; 00324 00333 inline double getFrameSizeScaleFactorForSize(const double frameRate, 00334 const cardinal frameSize) const; 00335 00343 inline double getFrameSizeUtilizationForSize(const double frameRate, 00344 const cardinal frameSize) const; 00345 00346 00347 // ====== Scaling and utilization methods, for given buffer delay ======== 00354 inline cardinal getMinFrameSizeForDelay(const double frameRate, 00355 const cardinal bufferDelay) const; 00356 00363 inline cardinal getMaxFrameSizeForDelay(const double frameRate, 00364 const cardinal bufferDelay) const; 00365 00372 inline cardinal getPeakFrameSizeForDelayAndSize(const double frameRate, 00373 const cardinal bufferDelay, 00374 const cardinal frameSize) const; 00375 00382 inline cardinal getPacketCountForDelayAndSize(const double frameRate, 00383 const cardinal bufferDelay, 00384 const cardinal frameSize) const; 00385 00393 inline double getPrevFrameSizeForDelayAndSize(const double frameRate, 00394 const cardinal bufferDelay, 00395 const cardinal frameSize) const; 00403 inline double getNextFrameSizeForDelayAndSize(const double frameRate, 00404 const cardinal bufferDelay, 00405 const cardinal frameSize) const; 00406 00415 inline double getFrameSizeScaleFactorForDelayAndSize(const double frameRate, 00416 const cardinal bufferDelay, 00417 const cardinal frameSize) const; 00418 00426 inline double getFrameSizeUtilizationForDelayAndSize(const double frameRate, 00427 const cardinal bufferDelay, 00428 const cardinal frameSize) const; 00429 00430 00431 // ====== Buffer delay methods =========================================== 00437 inline cardinal getBufferDelay() const; 00438 00445 cardinal setBufferDelay(const cardinal bufferDelay); 00446 00453 inline cardinal getPrevBufferDelay(const double frameRate) const; 00454 00461 inline cardinal getNextBufferDelay(const double frameRate) const; 00462 00463 00464 // ====== Source and destination address methods ========================= 00470 inline InternetAddress getSource() const; 00471 00477 inline InternetFlow getDestination() const; 00478 00484 inline void setSource(const InternetAddress& source); 00485 00491 inline void setDestination(const InternetFlow& destination); 00492 00493 00494 // ====== Flags ========================================================== 00498 inline cardinal getFlags() const; 00499 00503 inline void setFlags(const cardinal flags); 00504 00508 enum LayerFlags { 00509 LF_BaseLayer = 0, 00510 LF_ExtensionLayer = (1 << 0) 00511 }; 00512 00513 00514 // ====== Protected data ================================================= 00515 protected: 00516 cardinal PktHeaderSize; 00517 cardinal PktMaxSize; 00518 00519 card64 Bandwidth; 00520 00521 double MaxTransferDelay; 00522 double MaxLossRate; 00523 double MaxJitter; 00524 00525 cardinal BufferDelay; 00526 cardinal MaxBufferDelay; 00527 cardinal Flags; 00528 00529 InternetAddress Source; 00530 InternetFlow Destination; 00531 }; 00532 00533 00534 #include "abstractlayerdescription.icc" 00535 00536 00537 #endif
1.7.6.1 
