Add MediaTransportInterface factory to the Jni bindings

Java apps currently have no way of setting MediaTransportInterface on
the PeerConnectionFactory. This change adds that ability.

Bug: webrtc:9719
Change-Id: I312893a153b5b3d978912cba4db60cd97001c8f3
Reviewed-on: https://webrtc-review.googlesource.com/c/105740
Commit-Queue: Peter Slatala <psla@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25217}

sdk/android/api/org/webrtc/MediaTransportFactoryFactory.java

@@ -0,0 +1,22 @@
+/*
+ *  Copyright 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package org.webrtc;
+
+/**
+ * Factory for creating webrtc::MediaTransportFactory instances.
+ */
+public interface MediaTransportFactoryFactory {
+  /**
+   * Dynamically allocates a webrtc::MediaTransportFactory instance and returns a pointer to it.
+   * The caller takes ownership of the object.
+   */
+  public long createNativeMediaTransportFactory();
+}

sdk/android/api/org/webrtc/PeerConnectionFactory.java

@@ -158,6 +158,7 @@ public class PeerConnectionFactory {
     private @Nullable VideoDecoderFactory decoderFactory;
     private @Nullable AudioProcessingFactory audioProcessingFactory;
     private @Nullable FecControllerFactoryFactoryInterface fecControllerFactoryFactory;
+    private @Nullable MediaTransportFactoryFactory mediaTransportFactoryFactory;
 
     private Builder() {}
 
@@ -196,9 +197,16 @@ public class PeerConnectionFactory {
       return this;
     }
 
+    /** Sets a MediaTransportFactoryFactory for a PeerConnectionFactory. */
+    public Builder setMediaTransportFactoryFactory(
+        MediaTransportFactoryFactory mediaTransportFactoryFactory) {
+      this.mediaTransportFactoryFactory = mediaTransportFactoryFactory;
+      return this;
+    }
+
     public PeerConnectionFactory createPeerConnectionFactory() {
       return new PeerConnectionFactory(options, audioDeviceModule, encoderFactory, decoderFactory,
-          audioProcessingFactory, fecControllerFactoryFactory);
+          audioProcessingFactory, fecControllerFactoryFactory, mediaTransportFactoryFactory);
     }
   }
 
@@ -279,13 +287,17 @@ public class PeerConnectionFactory {
   private PeerConnectionFactory(Options options, @Nullable AudioDeviceModule audioDeviceModule,
       @Nullable VideoEncoderFactory encoderFactory, @Nullable VideoDecoderFactory decoderFactory,
       @Nullable AudioProcessingFactory audioProcessingFactory,
-      @Nullable FecControllerFactoryFactoryInterface fecControllerFactoryFactory) {
+      @Nullable FecControllerFactoryFactoryInterface fecControllerFactoryFactory,
+      @Nullable MediaTransportFactoryFactory mediaTransportFactoryFactory) {
     checkInitializeHasBeenCalled();
     nativeFactory = nativeCreatePeerConnectionFactory(ContextUtils.getApplicationContext(), options,
         audioDeviceModule == null ? 0 : audioDeviceModule.getNativeAudioDeviceModulePointer(),
         encoderFactory, decoderFactory,
         audioProcessingFactory == null ? 0 : audioProcessingFactory.createNative(),
-        fecControllerFactoryFactory == null ? 0 : fecControllerFactoryFactory.createNative());
+        fecControllerFactoryFactory == null ? 0 : fecControllerFactoryFactory.createNative(),
+        mediaTransportFactoryFactory == null
+            ? 0
+            : mediaTransportFactoryFactory.createNativeMediaTransportFactory());
     if (nativeFactory == 0) {
       throw new RuntimeException("Failed to initialize PeerConnectionFactory!");
     }
@@ -489,7 +501,7 @@ public class PeerConnectionFactory {
   private static native long nativeCreatePeerConnectionFactory(Context context, Options options,
       long nativeAudioDeviceModule, VideoEncoderFactory encoderFactory,
       VideoDecoderFactory decoderFactory, long nativeAudioProcessor,
-      long nativeFecControllerFactory);
+      long nativeFecControllerFactory, long mediaTransportFactory);
   private static native long nativeCreatePeerConnection(long factory,
       PeerConnection.RTCConfiguration rtcConfig, MediaConstraints constraints, long nativeObserver,
       SSLCertificateVerifier sslCertificateVerifier);