Java binding for RtpSender/RtpReceiver.

talk/app/webrtc/java/src/org/webrtc/RtpSender.java

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
  *     this list of conditions and the following disclaimer in the documentation
  *     and/or other materials provided with the distribution.
  *  3. The name of the author may not be used to endorse or promote products
  *     derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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  */
 
 package org.webrtc;
 
-public class CallSessionFileRotatingLogSink {
-  static {
-    System.loadLibrary("jingle_peerconnection_so");
+/** Java wrapper for a C++ RtpSenderInterface. */
+public class RtpSender {
+  final long nativeRtpSender;
+
+  private MediaStreamTrack cachedTrack;
+
+  public RtpSender(long nativeRtpSender) {
+    this.nativeRtpSender = nativeRtpSender;
+    long track = nativeTrack(nativeRtpSender);
+    cachedTrack = (track == 0) ? null : new MediaStreamTrack(track);
   }
 
-  private long nativeSink;
-
-  public static byte[] getLogData(String dirPath) {
-    return nativeGetLogData(dirPath);
+  // NOTE: This should not be called with a track that's already used by
+  // another RtpSender, because then it would be double-disposed.
+  public void setTrack(MediaStreamTrack track) {
+    if (cachedTrack != null) {
+      cachedTrack.dispose();
+    }
+    cachedTrack = track;
+    nativeSetTrack(nativeRtpSender, (track == null) ? 0 : track.nativeTrack);
   }
 
-  public CallSessionFileRotatingLogSink(
-      String dirPath, int maxFileSize, Logging.Severity severity) {
-    nativeSink = nativeAddSink(dirPath, maxFileSize, severity.ordinal());
+  public MediaStreamTrack track() {
+    return cachedTrack;
+  }
+
+  public String id() {
+    return nativeId(nativeRtpSender);
   }
 
   public void dispose() {
-    if (nativeSink != 0) {
-      nativeDeleteSink(nativeSink);
-      nativeSink = 0;
+    if (cachedTrack != null) {
+      cachedTrack.dispose();
     }
+    free(nativeRtpSender);
   }
 
-  private static native long nativeAddSink(
-      String dirPath, int maxFileSize, int severity);
-  private static native void nativeDeleteSink(long nativeSink);
-  private static native byte[] nativeGetLogData(String dirPath);
+  private static native void nativeSetTrack(long nativeRtpSender,
+                                            long nativeTrack);
+
+  // This should increment the reference count of the track.

[AlexG, 2015/10/02 22:44:36]

I think it actually decrements refcount - it calls release() in native?

[Taylor Brandstetter, 2015/10/03 01:50:10]

See other comment

+  // Will be released in dispose() or setTrack().
+  private static native long nativeTrack(long nativeRtpSender);
+
+  private static native String nativeId(long nativeRtpSender);
+
+  private static native void free(long nativeRtpSender);
 }
+;