org.webrtc.RtpSender Maven / Gradle / Ivy
/*
* Copyright 2015 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;
/** Java wrapper for a C++ RtpSenderInterface. */
public class RtpSender {
final long nativeRtpSender;
private MediaStreamTrack cachedTrack;
private boolean ownsTrack = true;
private final DtmfSender dtmfSender;
public RtpSender(long nativeRtpSender) {
this.nativeRtpSender = nativeRtpSender;
long track = nativeGetTrack(nativeRtpSender);
// It may be possible for an RtpSender to be created without a track.
cachedTrack = (track != 0) ? new MediaStreamTrack(track) : null;
long nativeDtmfSender = nativeGetDtmfSender(nativeRtpSender);
dtmfSender = (nativeDtmfSender != 0) ? new DtmfSender(nativeDtmfSender) : null;
}
// If |takeOwnership| is true, the RtpSender takes ownership of the track
// from the caller, and will auto-dispose of it when no longer needed.
// |takeOwnership| should only be used if the caller owns the track; it is
// not appropriate when the track is owned by, for example, another RtpSender
// or a MediaStream.
public boolean setTrack(MediaStreamTrack track, boolean takeOwnership) {
if (!nativeSetTrack(nativeRtpSender, (track == null) ? 0 : track.nativeTrack)) {
return false;
}
if (cachedTrack != null && ownsTrack) {
cachedTrack.dispose();
}
cachedTrack = track;
ownsTrack = takeOwnership;
return true;
}
public MediaStreamTrack track() {
return cachedTrack;
}
public boolean setParameters(RtpParameters parameters) {
return nativeSetParameters(nativeRtpSender, parameters);
}
public RtpParameters getParameters() {
return nativeGetParameters(nativeRtpSender);
}
public String id() {
return nativeId(nativeRtpSender);
}
public DtmfSender dtmf() {
return dtmfSender;
}
public void dispose() {
if (dtmfSender != null) {
dtmfSender.dispose();
}
if (cachedTrack != null && ownsTrack) {
cachedTrack.dispose();
}
free(nativeRtpSender);
}
private static native boolean nativeSetTrack(long nativeRtpSender, long nativeTrack);
// This should increment the reference count of the track.
// Will be released in dispose() or setTrack().
private static native long nativeGetTrack(long nativeRtpSender);
// This should increment the reference count of the DTMF sender.
// Will be released in dispose().
private static native long nativeGetDtmfSender(long nativeRtpSender);
private static native boolean nativeSetParameters(long nativeRtpSender, RtpParameters parameters);
private static native RtpParameters nativeGetParameters(long nativeRtpSender);
private static native String nativeId(long nativeRtpSender);
private static native void free(long nativeRtpSender);
};