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/*
* libjingle
* Copyright 2015 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.webrtc;
/** Java wrapper for a C++ RtpSenderInterface. */
public class RtpSender {
final long nativeRtpSender;
private MediaStreamTrack cachedTrack;
private boolean ownsTrack = true;
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) ? null : new MediaStreamTrack(track);
}
// 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 String id() {
return nativeId(nativeRtpSender);
}
public void 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);
private static native String nativeId(long nativeRtpSender);
private static native void free(long nativeRtpSender);
}
;
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