00001 // Copyright (C) 2002 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 General Public License 00014 // along with this program; if not, write to the Free Software 00015 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00016 // 00017 // As a special exception, you may use this file as part of a free software 00018 // library without restriction. Specifically, if other files instantiate 00019 // templates or use macros or inline functions from this file, or you compile 00020 // this file and link it with other files to produce an executable, this 00021 // file does not by itself cause the resulting executable to be covered by 00022 // the GNU General Public License. This exception does not however 00023 // invalidate any other reasons why the executable file might be covered by 00024 // the GNU General Public License. 00025 // 00026 // This exception applies only to the code released under the name GNU 00027 // ccRTP. If you copy code from other releases into a copy of GNU 00028 // ccRTP, as the General Public License permits, the exception does 00029 // not apply to the code that you add in this way. To avoid misleading 00030 // anyone as to the status of such modified files, you must delete 00031 // this exception notice from them. 00032 // 00033 // If you write modifications of your own for GNU ccRTP, it is your choice 00034 // whether to permit this exception to apply to your modifications. 00035 // If you do not wish that, delete this exception notice. 00036 // 00037 00038 #ifndef CCXX_RTP_FORMATS_H_ 00039 #define CCXX_RTP_FORMATS_H_ 00040 00041 #ifdef CCXX_NAMESPACES 00042 namespace ost { 00043 #endif 00044 00065 typedef uint8 PayloadType; 00066 00068 const PayloadType ptINVALID = 128; 00069 00076 typedef enum { 00077 // Types for audio formats: 00078 sptPCMU = 0, 00079 firstStaticPayloadType = sptPCMU, 00080 // 1016 static payload type is now deprecated. Type 1 is reserved. 00081 // spt1016, ///< CELP audio (FED-STD 1016) (RFC 1890) 00082 sptG726_32 = 2, 00083 sptGSM, 00084 sptG723, 00085 sptDVI4_8000, 00086 sptDVI4_16000, 00087 sptLPC, 00088 sptPCMA, 00089 sptG722, 00090 sptL16_DUAL, 00091 sptL16_MONO, 00092 sptQCELP, 00093 // Type 13 is reserved. 00094 sptMPA = 14, 00095 sptG728, 00096 sptDVI4_11025, 00097 sptDVI4_22050, 00098 sptG729, 00099 // Type 19 is reserved. Types 20 - 23 are unassigned. 00100 lastStaticAudioPayloadType = sptG729, 00101 00102 // Types for video formats: 00103 // Type 24 is unassigned. 00104 sptCELB = 25, 00105 sptJPEG, 00106 // Type 27 is unassigned. 00107 sptNV = 28, 00108 // Types 29 and 30 are unassigned. 00109 sptH261 = 31, 00110 sptMPV, 00111 sptMP2T, 00112 sptH263, 00113 // Types 35 - 71 are unassigned. 00114 // Types 72 - 76 are reserved. 00115 // Types 96 - 127 are dynamic. 00116 lastStaticPayloadType = sptH263 00117 } StaticPayloadType; 00118 00132 class __EXPORT PayloadFormat 00133 { 00134 public: 00140 inline PayloadType getPayloadType() const 00141 { return payloadType; } 00142 00151 inline uint32 getRTPClockRate() const 00152 { return RTPClockRate; } 00153 00154 protected: 00158 PayloadFormat() 00159 { } 00160 00164 inline virtual ~PayloadFormat() 00165 { } 00166 00172 inline void setPayloadType(PayloadType pt) 00173 { payloadType = pt; } 00174 00180 inline void setRTPClockRate(uint32 rate) 00181 { RTPClockRate = rate; } 00182 00183 // default clock rate 00184 static const uint32 defaultRTPClockRate; 00185 00186 private: 00187 PayloadType payloadType; 00188 uint32 RTPClockRate; 00189 }; 00190 00203 class __EXPORT StaticPayloadFormat : public PayloadFormat 00204 { 00205 public: 00214 StaticPayloadFormat(StaticPayloadType type); 00215 00216 private: 00222 static uint32 staticAudioTypesRates[lastStaticAudioPayloadType - 00223 firstStaticPayloadType + 1]; 00224 }; 00225 00237 class __EXPORT DynamicPayloadFormat : public PayloadFormat 00238 { 00239 public: 00247 DynamicPayloadFormat(PayloadType type, uint32 rate); 00248 }; 00249 // payload 00251 00252 #ifdef CCXX_NAMESPACES 00253 } 00254 #endif 00255 00256 #endif // ndef CCXX_RTP_FORMATS_H_ 00257