75 lines
1.9 KiB
Java
75 lines
1.9 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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/** Java wrapper for a C++ MediaSourceInterface. */
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public class MediaSource {
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/** Tracks MediaSourceInterface.SourceState */
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public enum State {
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INITIALIZING,
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LIVE,
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ENDED,
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MUTED;
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@CalledByNative("State")
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static State fromNativeIndex(int nativeIndex) {
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return values()[nativeIndex];
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}
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}
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private final RefCountDelegate refCountDelegate;
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private long nativeSource;
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public MediaSource(long nativeSource) {
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refCountDelegate = new RefCountDelegate(() -> JniCommon.nativeReleaseRef(nativeSource));
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this.nativeSource = nativeSource;
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}
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public State state() {
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checkMediaSourceExists();
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return nativeGetState(nativeSource);
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}
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public void dispose() {
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checkMediaSourceExists();
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refCountDelegate.release();
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nativeSource = 0;
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}
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/** Returns a pointer to webrtc::MediaSourceInterface. */
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protected long getNativeMediaSource() {
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checkMediaSourceExists();
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return nativeSource;
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}
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/**
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* Runs code in {@code runnable} holding a reference to the media source. If the object has
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* already been released, does nothing.
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*/
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void runWithReference(Runnable runnable) {
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if (refCountDelegate.safeRetain()) {
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try {
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runnable.run();
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} finally {
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refCountDelegate.release();
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}
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}
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}
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private void checkMediaSourceExists() {
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if (nativeSource == 0) {
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throw new IllegalStateException("MediaSource has been disposed.");
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}
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}
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private static native State nativeGetState(long pointer);
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}
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