|  | /* | 
|  | *  Copyright 2013 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++ AudioTrackInterface */ | 
|  | public class AudioTrack extends MediaStreamTrack { | 
|  | public AudioTrack(long nativeTrack) { | 
|  | super(nativeTrack); | 
|  | } | 
|  |  | 
|  | /** Sets the volume for the underlying MediaSource. Volume is a gain value in the range | 
|  | *  0 to 10. | 
|  | */ | 
|  | public void setVolume(double volume) { | 
|  | nativeSetVolume(getNativeAudioTrack(), volume); | 
|  | } | 
|  |  | 
|  | /** Returns a pointer to webrtc::AudioTrackInterface. */ | 
|  | long getNativeAudioTrack() { | 
|  | return getNativeMediaStreamTrack(); | 
|  | } | 
|  |  | 
|  | private static native void nativeSetVolume(long track, double volume); | 
|  | } |