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/*
* Copyright (C) 2016 Andrew Comminos <andrew@comminos.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package se.lublin.humla.audio.inputmode;
import android.util.Log;
import se.lublin.humla.Constants;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
/**
* An input mode that depends on a toggle, such as push to talk.
* Created by andrew on 13/02/16.
*/
public class ToggleInputMode implements IInputMode {
private boolean mInputOn;
private final Lock mToggleLock;
private final Condition mToggleCondition;
public ToggleInputMode() {
mInputOn = false;
mToggleLock = new ReentrantLock();
mToggleCondition = mToggleLock.newCondition();
}
public void toggleTalkingOn() {
setTalkingOn(!mInputOn);
}
public boolean isTalkingOn() {
return mInputOn;
}
public void setTalkingOn(boolean talking) {
mToggleLock.lock();
mInputOn = talking;
mToggleCondition.signalAll();
mToggleLock.unlock();
}
@Override
public boolean shouldTransmit(short[] pcm, int length) {
return mInputOn;
}
@Override
public void waitForInput() {
mToggleLock.lock();
if (!mInputOn) {
Log.v(Constants.TAG, "PTT: Suspending audio input.");
long startTime = System.currentTimeMillis();
try {
mToggleCondition.await();
} catch (InterruptedException e) {
Log.w(Constants.TAG, "Blocking for PTT interrupted, likely due to input thread shutdown.");
}
Log.v(Constants.TAG, "PTT: Suspended audio input for " + (System.currentTimeMillis() - startTime) + "ms.");
}
mToggleLock.unlock();
}
}
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