Added the JNI interface to get and set RtpParameters and the maximum bitrate limits.

webrtc/api/androidtests/src/org/webrtc/PeerConnectionTest.java

 /*
  *  Copyright 2013 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.
  */
 
@@ skipping 676 matching lines @@
     }
 
     assertTrue(offeringExpectations.waitForAllExpectationsToBeSatisfied(TIMEOUT_SECONDS));
     assertTrue(answeringExpectations.waitForAllExpectationsToBeSatisfied(TIMEOUT_SECONDS));
 
     assertEquals(
         PeerConnection.SignalingState.STABLE, offeringPC.signalingState());
     assertEquals(
         PeerConnection.SignalingState.STABLE, answeringPC.signalingState());
 
+    // Set a bitrate limit for the outgoing video stream for the offerer.
+    RtpSender videoSender = null;
+    for (RtpSender sender : offeringPC.getSenders()) {
+      if (sender.track().kind().equals("video")) {
+        videoSender = sender;
+      }
+    }
+    assertNotNull(videoSender);
+    RtpParameters rtpParameters = videoSender.getParameters();
+    assertNotNull(rtpParameters);
+    assertEquals(1, rtpParameters.encodings.size());
+    assertNull(rtpParameters.encodings.get(0).maxBitrateBps);
+
+    rtpParameters.encodings.get(0).maxBitrateBps = 300000;
+    assertTrue(videoSender.setParameters(rtpParameters));
+
+    // Verify that we can read back the updated value.
+    rtpParameters = videoSender.getParameters();
+    assertEquals(300000, (int) rtpParameters.encodings.get(0).maxBitrateBps);
+
     // Test send & receive UTF-8 text.
     answeringExpectations.expectMessage(
         ByteBuffer.wrap("hello!".getBytes(Charset.forName("UTF-8"))), false);
     DataChannel.Buffer buffer = new DataChannel.Buffer(
         ByteBuffer.wrap("hello!".getBytes(Charset.forName("UTF-8"))), false);
     assertTrue(offeringExpectations.dataChannel.send(buffer));
     assertTrue(answeringExpectations.waitForAllExpectationsToBeSatisfied(TIMEOUT_SECONDS));
 
     // Construct this binary message two different ways to ensure no
     // shortcuts are taken.
@@ skipping 277 matching lines @@
     TreeSet<String> threads = new TreeSet<String>();
     // This pokes at /proc instead of using the Java APIs because we're also
     // looking for libjingle/webrtc native threads, most of which won't have
     // attached to the JVM.
     for (String threadId : (new File("/proc/self/task")).list()) {
       threads.add(threadId);
     }
     return threads;
   }
 }