ccRTP
formats.h
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00001 // Copyright (C) 2002-2015 Federico Montesino Pouzols <fedemp@altern.org>.
00002 //
00003 // This program is free software; you can redistribute it and/or modify
00004 // it under the terms of the GNU General Public License as published by
00005 // the Free Software Foundation; either version 2 of the License, or
00006 // (at your option) any later version.
00007 //
00008 // This program is distributed in the hope that it will be useful,
00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 // GNU General Public License for more details.
00012 //
00013 // You should have received a copy of the GNU Lesser General Public License
00014 // along with GNU ccRTP.  If not, see <http://www.gnu.org/licenses/>.
00015 //
00016 // As a special exception, you may use this file as part of a free software
00017 // library without restriction.  Specifically, if other files instantiate
00018 // templates or use macros or inline functions from this file, or you compile
00019 // this file and link it with other files to produce an executable, this
00020 // file does not by itself cause the resulting executable to be covered by
00021 // the GNU General Public License.  This exception does not however
00022 // invalidate any other reasons why the executable file might be covered by
00023 // the GNU General Public License.
00024 //
00025 // This exception applies only to the code released under the name GNU
00026 // ccRTP.  If you copy code from other releases into a copy of GNU
00027 // ccRTP, as the General Public License permits, the exception does
00028 // not apply to the code that you add in this way.  To avoid misleading
00029 // anyone as to the status of such modified files, you must delete
00030 // this exception notice from them.
00031 //
00032 // If you write modifications of your own for GNU ccRTP, it is your choice
00033 // whether to permit this exception to apply to your modifications.
00034 // If you do not wish that, delete this exception notice.
00035 //
00036 
00037 #ifndef CCXX_RTP_FORMATS_H_
00038 #define CCXX_RTP_FORMATS_H_
00039 
00040 NAMESPACE_COMMONCPP
00041 
00062 typedef uint8 PayloadType;
00063 
00065 const PayloadType ptINVALID = 128;
00066 
00073 typedef enum {
00074     // Types for audio formats:
00075     sptPCMU = 0,        
00076     firstStaticPayloadType = sptPCMU,
00077     // 1016 static payload type is now deprecated. Type 1 is reserved.
00078     // spt1016,         ///< CELP audio (FED-STD 1016) (RFC 1890)
00079     sptG726_32 = 2,     
00080     sptGSM,             
00081     sptG723,            
00082     sptDVI4_8000,       
00083     sptDVI4_16000,      
00084     sptLPC,             
00085     sptPCMA,            
00086     sptG722,            
00087     sptL16_DUAL,        
00088     sptL16_MONO,        
00089     sptQCELP,           
00090     // Type 13 is reserved.
00091     sptMPA = 14,        
00092     sptG728,            
00093     sptDVI4_11025,      
00094     sptDVI4_22050,      
00095     sptG729,            
00096     // Type 19 is reserved. Types 20 - 23 are unassigned.
00097     lastStaticAudioPayloadType = sptG729,
00098 
00099     // Types for video formats:
00100     // Type 24 is unassigned.
00101     sptCELB = 25,       
00102     sptJPEG,            
00103     // Type 27 is unassigned.
00104     sptNV = 28,         
00105     // Types 29 and 30 are unassigned.
00106     sptH261 = 31,       
00107     sptMPV,             
00108     sptMP2T,            
00109     sptH263,            
00110     // Types 35 - 71 are unassigned.
00111     // Types 72 - 76 are reserved.
00112     // Types 96 - 127 are dynamic.
00113     lastStaticPayloadType = sptH263
00114 }   StaticPayloadType;
00115 
00129 class __EXPORT PayloadFormat
00130 {
00131 public:
00137     inline PayloadType getPayloadType() const
00138     { return payloadType; }
00139 
00148     inline uint32 getRTPClockRate() const
00149     { return RTPClockRate; }
00150 
00151 protected:
00155     PayloadFormat()
00156     { }
00157 
00161     inline virtual ~PayloadFormat()
00162     { }
00163 
00169     inline void setPayloadType(PayloadType pt)
00170     { payloadType = pt; }
00171 
00177     inline void setRTPClockRate(uint32 rate)
00178     { RTPClockRate = rate; }
00179 
00180     // default clock rate
00181     static const uint32 defaultRTPClockRate;
00182 
00183 private:
00184     PayloadType payloadType;    
00185     uint32 RTPClockRate;        
00186 };
00187 
00200 class __EXPORT StaticPayloadFormat : public PayloadFormat
00201 {
00202 public:
00211     StaticPayloadFormat(StaticPayloadType type);
00212 
00213 private:
00219     static uint32 staticAudioTypesRates[lastStaticAudioPayloadType -
00220                         firstStaticPayloadType + 1];
00221 };
00222 
00234 class __EXPORT DynamicPayloadFormat : public PayloadFormat
00235 {
00236 public:
00244     DynamicPayloadFormat(PayloadType type, uint32 rate);
00245 };
00246  // payload
00248 
00249 END_NAMESPACE
00250 
00251 #endif  // ndef CCXX_RTP_FORMATS_H_
00252