ccRTP
formats.h
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1 // Copyright (C) 2002 Federico Montesino Pouzols <fedemp@altern.org>.
2 //
3 // This program is free software; you can redistribute it and/or modify
4 // it under the terms of the GNU General Public License as published by
5 // the Free Software Foundation; either version 2 of the License, or
6 // (at your option) any later version.
7 //
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
12 //
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16 //
17 // As a special exception, you may use this file as part of a free software
18 // library without restriction. Specifically, if other files instantiate
19 // templates or use macros or inline functions from this file, or you compile
20 // this file and link it with other files to produce an executable, this
21 // file does not by itself cause the resulting executable to be covered by
22 // the GNU General Public License. This exception does not however
23 // invalidate any other reasons why the executable file might be covered by
24 // the GNU General Public License.
25 //
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27 // ccRTP. If you copy code from other releases into a copy of GNU
28 // ccRTP, as the General Public License permits, the exception does
29 // not apply to the code that you add in this way. To avoid misleading
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32 //
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34 // whether to permit this exception to apply to your modifications.
35 // If you do not wish that, delete this exception notice.
36 //
37 
38 #ifndef CCXX_RTP_FORMATS_H_
39 #define CCXX_RTP_FORMATS_H_
40 
41 #ifdef CCXX_NAMESPACES
42 namespace ost {
43 #endif
44 
65 typedef uint8 PayloadType;
66 
68 const PayloadType ptINVALID = 128;
69 
76 typedef enum {
77  // Types for audio formats:
78  sptPCMU = 0,
80  // 1016 static payload type is now deprecated. Type 1 is reserved.
81  // spt1016, ///< CELP audio (FED-STD 1016) (RFC 1890)
82  sptG726_32 = 2,
93  // Type 13 is reserved.
94  sptMPA = 14,
99  // Type 19 is reserved. Types 20 - 23 are unassigned.
101 
102  // Types for video formats:
103  // Type 24 is unassigned.
104  sptCELB = 25,
106  // Type 27 is unassigned.
107  sptNV = 28,
108  // Types 29 and 30 are unassigned.
109  sptH261 = 31,
113  // Types 35 - 71 are unassigned.
114  // Types 72 - 76 are reserved.
115  // Types 96 - 127 are dynamic.
118 
132 class __EXPORT PayloadFormat
133 {
134 public:
140  inline PayloadType getPayloadType() const
141  { return payloadType; }
142 
151  inline uint32 getRTPClockRate() const
152  { return RTPClockRate; }
153 
154 protected:
159  { }
160 
164  inline virtual ~PayloadFormat()
165  { }
166 
172  inline void setPayloadType(PayloadType pt)
173  { payloadType = pt; }
174 
180  inline void setRTPClockRate(uint32 rate)
181  { RTPClockRate = rate; }
182 
183  // default clock rate
184  static const uint32 defaultRTPClockRate;
185 
186 private:
187  PayloadType payloadType;
188  uint32 RTPClockRate;
189 };
190 
203 class __EXPORT StaticPayloadFormat : public PayloadFormat
204 {
205 public:
215 
216 private:
222  static uint32 staticAudioTypesRates[lastStaticAudioPayloadType -
224 };
225 
237 class __EXPORT DynamicPayloadFormat : public PayloadFormat
238 {
239 public:
247  DynamicPayloadFormat(PayloadType type, uint32 rate);
248 };
249  // payload
251 
252 #ifdef CCXX_NAMESPACES
253 }
254 #endif
255 
256 #endif // ndef CCXX_RTP_FORMATS_H_
257