Android Open Source - voicesmith Audio Thread

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Back to project page voicesmith.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Voicesmith <http://voicesmith.jurihock.de/>
 *// w w  w .j  ava 2  s  . co m
 * Copyright (c) 2011-2014 Juergen Hock
 *
 * 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 de.jurihock.voicesmith.threads;

import android.content.Context;
import de.jurihock.voicesmith.AAF;
import de.jurihock.voicesmith.DAFX;
import de.jurihock.voicesmith.Disposable;
import de.jurihock.voicesmith.Utils;
import de.jurihock.voicesmith.io.AudioDevice;

public abstract class AudioThread implements Runnable, Disposable
{
  protected final Context  context;
  protected final AudioDevice  input, output;

  private Thread        thread  = null;

  public AudioThread(Context context, AudioDevice input, AudioDevice output)
  {
    this.context = context;
    this.input = input;
    this.output = output;
  }

  public void configure(String value)
  {
    // ReentrantLock lock = new ReentrantLock(true);
    // lock.lock();
    // try { ... } finally { lock.unlock(); }
  }

  public void dispose()
  {
    stop();

    new Utils(context).log("Disposing an audio thread.");
  }

  public boolean isRunning()
  {
    return (thread != null)
      && (thread.getState() != Thread.State.TERMINATED);
  }

  public void start()
  {
    if (isRunning()) return;

    thread = new Thread(this);
    thread.start();
  }

  public void stop()
  {
    if (!isRunning()) return;

    thread.interrupt();

    try
    {
      thread.join();
    }
    catch (InterruptedException exception)
    {
      new Utils(context).log(exception);
    }
    finally
    {
      thread = null;
    }
  }

  public void run()
  {
    android.os.Process.setThreadPriority(
      android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);

    output.start();
    input.start();

    doProcessing();

    input.stop();
    output.stop();
  }

  protected abstract void doProcessing();

  public static AudioThread create(Context context, AudioDevice input, AudioDevice output, DAFX dafx)
  {
    switch (dafx)
    {
    case Robotize:
      return new RobotizeThread(context, input, output);
    case Transpose:
      return new TransposeThread(context, input, output);
    case Detune:
      return new DetuneThread(context, input, output);
    case Hoarseness:
      return new HoarsenessThread(context, input, output);
    default:
      throw new IllegalArgumentException("Illegal DAFX argument!");
    }
  }

  public static AudioThread create(Context context, AudioDevice input, AudioDevice output, AAF aaf)
  {
    switch (aaf)
    {
    case FAF:
      return new TransposeThread(context, input, output);
    case DAF:
      return new DelayThread(context, input, output);
    case UnprocessedFeedback:
      return new LowDelayThread(context, input, output);
    default:
      throw new IllegalArgumentException("Illegal AAF argument!");
    }
  }
}

Java Source Code List

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