0ba43b5a20
VideoSinks receive the new kind of VideoFrames and will replace VideoRenderers. Converting from old texture frames to VideoFrames will involve conversion to I420 so it is not recommended to use VideoSinks before all sources produce VideoFrames. BUG=webrtc:7749, webrtc:7760 Review-Url: https://codereview.webrtc.org/3002553002 Cr-Commit-Position: refs/heads/master@{#19335}
83 lines
2.5 KiB
Java
83 lines
2.5 KiB
Java
/*
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* Copyright 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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package org.webrtc;
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import java.util.IdentityHashMap;
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import java.util.LinkedList;
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/** Java version of VideoTrackInterface. */
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public class VideoTrack extends MediaStreamTrack {
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private final LinkedList<VideoRenderer> renderers = new LinkedList<VideoRenderer>();
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private final IdentityHashMap<VideoSink, Long> sinks = new IdentityHashMap<VideoSink, Long>();
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public VideoTrack(long nativeTrack) {
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super(nativeTrack);
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}
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/**
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* Adds a VideoSink to the track.
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*
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* A track can have any number of VideoSinks. VideoSinks will replace
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* renderers. However, converting old style texture frames will involve costly
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* conversion to I420 so it is not recommended to upgrade before all your
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* sources produce VideoFrames.
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*/
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public void addSink(VideoSink sink) {
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final long nativeSink = nativeWrapSink(sink);
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sinks.put(sink, nativeSink);
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nativeAddSink(nativeTrack, nativeSink);
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}
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/**
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* Removes a VideoSink from the track.
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*
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* If the VideoSink was not attached to the track, this is a no-op.
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*/
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public void removeSink(VideoSink sink) {
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final long nativeSink = sinks.remove(sink);
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if (nativeSink != 0) {
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nativeRemoveSink(nativeTrack, nativeSink);
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nativeFreeSink(nativeSink);
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}
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}
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public void addRenderer(VideoRenderer renderer) {
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renderers.add(renderer);
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nativeAddSink(nativeTrack, renderer.nativeVideoRenderer);
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}
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public void removeRenderer(VideoRenderer renderer) {
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if (!renderers.remove(renderer)) {
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return;
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}
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nativeRemoveSink(nativeTrack, renderer.nativeVideoRenderer);
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renderer.dispose();
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}
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public void dispose() {
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while (!renderers.isEmpty()) {
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removeRenderer(renderers.getFirst());
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}
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for (long nativeSink : sinks.values()) {
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nativeRemoveSink(nativeTrack, nativeSink);
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nativeFreeSink(nativeSink);
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}
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sinks.clear();
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super.dispose();
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}
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private static native void nativeAddSink(long nativeTrack, long nativeSink);
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private static native void nativeRemoveSink(long nativeTrack, long nativeSink);
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private static native long nativeWrapSink(VideoSink sink);
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private static native void nativeFreeSink(long nativeSink);
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}
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