1 /* 2 * libjingle 3 * Copyright 2013, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 29 package org.webrtc; 30 31 import java.util.List; 32 33 /** 34 * Java wrapper for a C++ PeerConnectionFactoryInterface. Main entry point to 35 * the PeerConnection API for clients. 36 */ 37 public class PeerConnectionFactory { 38 static { 39 System.loadLibrary("jingle_peerconnection_so"); 40 } 41 42 private final long nativeFactory; 43 44 // |context| is an android.content.Context object, but we keep it untyped here 45 // to allow building on non-Android platforms. 46 public static native boolean initializeAndroidGlobals(Object context); 47 48 public PeerConnectionFactory() { 49 nativeFactory = nativeCreatePeerConnectionFactory(); 50 if (nativeFactory == 0) { 51 throw new RuntimeException("Failed to initialize PeerConnectionFactory!"); 52 } 53 } 54 55 56 public PeerConnection createPeerConnection( 57 List<PeerConnection.IceServer> iceServers, 58 MediaConstraints constraints, 59 PeerConnection.Observer observer) { 60 long nativeObserver = nativeCreateObserver(observer); 61 if (nativeObserver == 0) { 62 return null; 63 } 64 long nativePeerConnection = nativeCreatePeerConnection( 65 nativeFactory, iceServers, constraints, nativeObserver); 66 if (nativePeerConnection == 0) { 67 return null; 68 } 69 return new PeerConnection(nativePeerConnection, nativeObserver); 70 } 71 72 public MediaStream createLocalMediaStream(String label) { 73 return new MediaStream( 74 nativeCreateLocalMediaStream(nativeFactory, label)); 75 } 76 77 public VideoSource createVideoSource( 78 VideoCapturer capturer, MediaConstraints constraints) { 79 return new VideoSource(nativeCreateVideoSource( 80 nativeFactory, capturer.nativeVideoCapturer, constraints)); 81 } 82 83 public VideoTrack createVideoTrack(String id, VideoSource source) { 84 return new VideoTrack(nativeCreateVideoTrack( 85 nativeFactory, id, source.nativeSource)); 86 } 87 88 public AudioTrack createAudioTrack(String id) { 89 return new AudioTrack(nativeCreateAudioTrack(nativeFactory, id)); 90 } 91 92 public void dispose() { 93 freeFactory(nativeFactory); 94 } 95 96 private static native long nativeCreatePeerConnectionFactory(); 97 98 private static native long nativeCreateObserver( 99 PeerConnection.Observer observer); 100 101 private static native long nativeCreatePeerConnection( 102 long nativeFactory, List<PeerConnection.IceServer> iceServers, 103 MediaConstraints constraints, long nativeObserver); 104 105 private static native long nativeCreateLocalMediaStream( 106 long nativeFactory, String label); 107 108 private static native long nativeCreateVideoSource( 109 long nativeFactory, long nativeVideoCapturer, 110 MediaConstraints constraints); 111 112 private static native long nativeCreateVideoTrack( 113 long nativeFactory, String id, long nativeVideoSource); 114 115 private static native long nativeCreateAudioTrack( 116 long nativeFactory, String id); 117 118 private static native void freeFactory(long nativeFactory); 119 } 120