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Diffstat (limited to 'third_party/libwebrtc/sdk/android/api/org/webrtc/VideoTrack.java')
-rw-r--r-- | third_party/libwebrtc/sdk/android/api/org/webrtc/VideoTrack.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/android/api/org/webrtc/VideoTrack.java b/third_party/libwebrtc/sdk/android/api/org/webrtc/VideoTrack.java new file mode 100644 index 0000000000..5593d424f3 --- /dev/null +++ b/third_party/libwebrtc/sdk/android/api/org/webrtc/VideoTrack.java @@ -0,0 +1,76 @@ +/* + * 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. + */ + +package org.webrtc; + +import java.util.IdentityHashMap; + +/** Java version of VideoTrackInterface. */ +public class VideoTrack extends MediaStreamTrack { + private final IdentityHashMap<VideoSink, Long> sinks = new IdentityHashMap<VideoSink, Long>(); + + public VideoTrack(long nativeTrack) { + super(nativeTrack); + } + + /** + * Adds a VideoSink to the track. + * + * A track can have any number of VideoSinks. VideoSinks will replace + * renderers. However, converting old style texture frames will involve costly + * conversion to I420 so it is not recommended to upgrade before all your + * sources produce VideoFrames. + */ + public void addSink(VideoSink sink) { + if (sink == null) { + throw new IllegalArgumentException("The VideoSink is not allowed to be null"); + } + // We allow calling addSink() with the same sink multiple times. This is similar to the C++ + // VideoTrack::AddOrUpdateSink(). + if (!sinks.containsKey(sink)) { + final long nativeSink = nativeWrapSink(sink); + sinks.put(sink, nativeSink); + nativeAddSink(getNativeMediaStreamTrack(), nativeSink); + } + } + + /** + * Removes a VideoSink from the track. + * + * If the VideoSink was not attached to the track, this is a no-op. + */ + public void removeSink(VideoSink sink) { + final Long nativeSink = sinks.remove(sink); + if (nativeSink != null) { + nativeRemoveSink(getNativeMediaStreamTrack(), nativeSink); + nativeFreeSink(nativeSink); + } + } + + @Override + public void dispose() { + for (long nativeSink : sinks.values()) { + nativeRemoveSink(getNativeMediaStreamTrack(), nativeSink); + nativeFreeSink(nativeSink); + } + sinks.clear(); + super.dispose(); + } + + /** Returns a pointer to webrtc::VideoTrackInterface. */ + long getNativeVideoTrack() { + return getNativeMediaStreamTrack(); + } + + private static native void nativeAddSink(long track, long nativeSink); + private static native void nativeRemoveSink(long track, long nativeSink); + private static native long nativeWrapSink(VideoSink sink); + private static native void nativeFreeSink(long sink); +} |