1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_SSRC_DATABASE_H_ 12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_SSRC_DATABASE_H_ 13 14 #include <map> 15 16 #include "webrtc/system_wrappers/interface/static_instance.h" 17 #include "webrtc/typedefs.h" 18 19 namespace webrtc { 20 class CriticalSectionWrapper; 21 22 class SSRCDatabase 23 { 24 public: 25 static SSRCDatabase* GetSSRCDatabase(); 26 static void ReturnSSRCDatabase(); 27 28 uint32_t CreateSSRC(); 29 int32_t RegisterSSRC(const uint32_t ssrc); 30 int32_t ReturnSSRC(const uint32_t ssrc); 31 32 protected: 33 SSRCDatabase(); 34 virtual ~SSRCDatabase(); 35 CreateInstance()36 static SSRCDatabase* CreateInstance() { return new SSRCDatabase(); } 37 38 private: 39 // Friend function to allow the SSRC destructor to be accessed from the 40 // template class. 41 friend SSRCDatabase* GetStaticInstance<SSRCDatabase>( 42 CountOperation count_operation); 43 static SSRCDatabase* StaticInstance(CountOperation count_operation); 44 45 uint32_t GenerateRandom(); 46 47 std::map<uint32_t, uint32_t> _ssrcMap; 48 49 CriticalSectionWrapper* _critSect; 50 }; 51 } // namespace webrtc 52 53 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_SSRC_DATABASE_H_ 54