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
28package org.webrtc;
29
30import java.util.LinkedList;
31
32/** Java version of VideoTrackInterface. */
33public class VideoTrack extends MediaStreamTrack {
34  private final LinkedList<VideoRenderer> renderers =
35      new LinkedList<VideoRenderer>();
36
37  public VideoTrack(long nativeTrack) {
38    super(nativeTrack);
39  }
40
41  public void addRenderer(VideoRenderer renderer) {
42    renderers.add(renderer);
43    nativeAddRenderer(nativeTrack, renderer.nativeVideoRenderer);
44  }
45
46  public void removeRenderer(VideoRenderer renderer) {
47    if (!renderers.remove(renderer)) {
48      return;
49    }
50    nativeRemoveRenderer(nativeTrack, renderer.nativeVideoRenderer);
51    renderer.dispose();
52  }
53
54  public void dispose() {
55    while (!renderers.isEmpty()) {
56      removeRenderer(renderers.getFirst());
57    }
58    super.dispose();
59  }
60
61  private static native void free(long nativeTrack);
62
63  private static native void nativeAddRenderer(
64      long nativeTrack, long nativeRenderer);
65
66  private static native void nativeRemoveRenderer(
67      long nativeTrack, long nativeRenderer);
68}
69