1 /* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebRTCSessionDescription_h 32 #define WebRTCSessionDescription_h 33 34 #include "WebCommon.h" 35 #include "WebNonCopyable.h" 36 #include "WebPrivatePtr.h" 37 #include "WebString.h" 38 39 namespace blink { 40 41 class WebRTCSessionDescriptionPrivate; 42 43 // In order to establish the media plane, PeerConnection needs specific 44 // parameters to indicate what to transmit to the remote side, as well 45 // as how to handle the media that is received. These parameters are 46 // determined by the exchange of session descriptions in offers and 47 // answers, and there are certain details to this process that must be 48 // handled in the JSEP APIs. 49 // 50 // Whether a session description was sent or received affects the 51 // meaning of that description. For example, the list of codecs sent to 52 // a remote party indicates what the local side is willing to decode, 53 // and what the remote party should send. 54 55 class WebRTCSessionDescription { 56 public: 57 WebRTCSessionDescription() { } 58 WebRTCSessionDescription(const WebRTCSessionDescription& other) { assign(other); } 59 ~WebRTCSessionDescription() { reset(); } 60 61 WebRTCSessionDescription& operator=(const WebRTCSessionDescription& other) 62 { 63 assign(other); 64 return *this; 65 } 66 67 BLINK_PLATFORM_EXPORT void assign(const WebRTCSessionDescription&); 68 69 BLINK_PLATFORM_EXPORT void initialize(const WebString& type, const WebString& sdp); 70 BLINK_PLATFORM_EXPORT void reset(); 71 bool isNull() const { return m_private.isNull(); } 72 73 BLINK_PLATFORM_EXPORT WebString type() const; 74 BLINK_PLATFORM_EXPORT void setType(const WebString&); 75 BLINK_PLATFORM_EXPORT WebString sdp() const; 76 BLINK_PLATFORM_EXPORT void setSDP(const WebString&); 77 78 #if BLINK_IMPLEMENTATION 79 WebRTCSessionDescription(WebString type, WebString sdp) 80 { 81 this->initialize(type, sdp); 82 } 83 #endif 84 85 private: 86 WebPrivatePtr<WebRTCSessionDescriptionPrivate> m_private; 87 }; 88 89 } // namespace blink 90 91 #endif // WebRTCSessionDescription_h 92
