1 /* 2 * Copyright 2017 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 PC_SDP_UTILS_H_ 12 #define PC_SDP_UTILS_H_ 13 14 #include <functional> 15 #include <memory> 16 #include <string> 17 18 #include "api/jsep.h" 19 #include "pc/session_description.h" 20 #include "rtc_base/system/rtc_export.h" 21 22 namespace webrtc { 23 24 // Returns a copy of the given session description. 25 RTC_EXPORT std::unique_ptr<SessionDescriptionInterface> CloneSessionDescription( 26 const SessionDescriptionInterface* sdesc); 27 28 // Returns a copy of the given session description with the type changed. 29 RTC_EXPORT std::unique_ptr<SessionDescriptionInterface> 30 CloneSessionDescriptionAsType(const SessionDescriptionInterface* sdesc, 31 SdpType type); 32 33 // Function that takes a single session description content with its 34 // corresponding transport and produces a boolean. 35 typedef std::function<bool(const cricket::ContentInfo*, 36 const cricket::TransportInfo*)> 37 SdpContentPredicate; 38 39 // Returns true if the predicate returns true for all contents in the given 40 // session description. 41 bool SdpContentsAll(SdpContentPredicate pred, 42 const cricket::SessionDescription* desc); 43 44 // Returns true if the predicate returns true for none of the contents in the 45 // given session description. 46 bool SdpContentsNone(SdpContentPredicate pred, 47 const cricket::SessionDescription* desc); 48 49 // Function that takes a single session description content with its 50 // corresponding transport and can mutate the content and/or the transport. 51 typedef std::function<void(cricket::ContentInfo*, cricket::TransportInfo*)> 52 SdpContentMutator; 53 54 // Applies the mutator function over all contents in the given session 55 // description. 56 void SdpContentsForEach(SdpContentMutator fn, 57 cricket::SessionDescription* desc); 58 59 } // namespace webrtc 60 61 #endif // PC_SDP_UTILS_H_ 62