blob: 9d7451d839885dcf075dd1e0ab199addbf394b8f [file] [log] [blame]
/*
* 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;
import javax.annotation.Nullable;
/** Java wrapper for a C++ RtpSenderInterface. */
public class RtpSender {
private long nativeRtpSender;
@Nullable private MediaStreamTrack cachedTrack;
private boolean ownsTrack = true;
private final @Nullable DtmfSender dtmfSender;
@CalledByNative
public RtpSender(long nativeRtpSender) {
this.nativeRtpSender = nativeRtpSender;
long nativeTrack = nativeGetTrack(nativeRtpSender);
cachedTrack = MediaStreamTrack.createMediaStreamTrack(nativeTrack);
long nativeDtmfSender = nativeGetDtmfSender(nativeRtpSender);
dtmfSender = (nativeDtmfSender != 0) ? new DtmfSender(nativeDtmfSender) : null;
}
/**
* Starts sending a new track, without requiring additional SDP negotiation.
* <p>
* Note: This is equivalent to replaceTrack in the official WebRTC API. It
* was just implemented before the standards group settled on a name.
*
* @param takeOwnership If 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.
* @return true on success and false on failure.
*/
public boolean setTrack(@Nullable MediaStreamTrack track, boolean takeOwnership) {
checkRtpSenderExists();
if (!nativeSetTrack(nativeRtpSender, (track == null) ? 0 : track.getNativeMediaStreamTrack())) {
return false;
}
if (cachedTrack != null && ownsTrack) {
cachedTrack.dispose();
}
cachedTrack = track;
ownsTrack = takeOwnership;
return true;
}
@Nullable
public MediaStreamTrack track() {
return cachedTrack;
}
public boolean setParameters(RtpParameters parameters) {
checkRtpSenderExists();
return nativeSetParameters(nativeRtpSender, parameters);
}
public RtpParameters getParameters() {
checkRtpSenderExists();
return nativeGetParameters(nativeRtpSender);
}
public String id() {
checkRtpSenderExists();
return nativeGetId(nativeRtpSender);
}
@Nullable
public DtmfSender dtmf() {
return dtmfSender;
}
public void setFrameEncryptor(FrameEncryptor frameEncryptor) {
checkRtpSenderExists();
nativeSetFrameEncryptor(nativeRtpSender, frameEncryptor.getNativeFrameEncryptor());
}
public void dispose() {
checkRtpSenderExists();
if (dtmfSender != null) {
dtmfSender.dispose();
}
if (cachedTrack != null && ownsTrack) {
cachedTrack.dispose();
}
JniCommon.nativeReleaseRef(nativeRtpSender);
nativeRtpSender = 0;
}
/** Returns a pointer to webrtc::RtpSenderInterface. */
long getNativeRtpSender() {
checkRtpSenderExists();
return nativeRtpSender;
}
private void checkRtpSenderExists() {
if (nativeRtpSender == 0) {
throw new IllegalStateException("RtpSender has been disposed.");
}
}
private static native boolean nativeSetTrack(long rtpSender, long nativeTrack);
// This should increment the reference count of the track.
// Will be released in dispose() or setTrack().
private static native long nativeGetTrack(long rtpSender);
// This should increment the reference count of the DTMF sender.
// Will be released in dispose().
private static native long nativeGetDtmfSender(long rtpSender);
private static native boolean nativeSetParameters(long rtpSender, RtpParameters parameters);
private static native RtpParameters nativeGetParameters(long rtpSender);
private static native String nativeGetId(long rtpSender);
private static native void nativeSetFrameEncryptor(long rtpSender, long nativeFrameEncryptor);
};