Android Open Source - Flite-TTS-Engine-for-Android Native Flite T T S

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/*************************************************************************/ /* */ /* Language Technologies Instit...

Java Source Code

/*************************************************************************/
/*                                                                       */
/*                  Language Technologies Institute                      */
/*                     Carnegie Mellon University                        */
/*                         Copyright (c) 2010                            */
/*                        All Rights Reserved.                           */
/*                                                                       */
/*  Permission is hereby granted, free of charge, to use and distribute  */
/*  this software and its documentation without restriction, including   */
/*  without limitation the rights to use, copy, modify, merge, publish,  */
/*  distribute, sublicense, and/or sell copies of this work, and to      */
/*  permit persons to whom this work is furnished to do so, subject to   */
/*  the following conditions:                                            */
/*   1. The code must retain the above copyright notice, this list of    */
/*      conditions and the following disclaimer.                         */
/*   2. Any modifications must be clearly marked as such.                */
/*   3. Original authors' names are not deleted.                         */
/*   4. The authors' names are not used to endorse or promote products   */
/*      derived from this software without specific prior written        */
/*      permission.                                                      */
/*                                                                       */
/*  CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK         */
/*  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      */
/*  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   */
/*  SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE      */
/*  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    */
/*  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   */
/*  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          */
/*  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       */
/*  THIS SOFTWARE.                                                       */
/*                                                                       */
/*************************************************************************/
/*             Author:  Alok Parlikar (aup@cs.cmu.edu)                   */
/*               Date:  June 2012                                        */
/*************************************************************************/
/*  ww  w  .  jav a 2 s.c  om*/
package edu.cmu.cs.speech.tts.flite;

import java.io.File;

import android.content.Context;
import android.os.Environment;
import android.util.Log;

public class NativeFliteTTS {
  private final static String LOG_TAG = "Flite_Java_" + NativeFliteTTS.class.getSimpleName();  
  
  static {
    System.loadLibrary("ttsflite");
    nativeClassInit();
  }

  private final Context mContext;
  private final SynthReadyCallback mCallback;
    private final String mDatapath;
    private boolean mInitialized = false;
    
  public NativeFliteTTS(Context context, SynthReadyCallback callback) {
    mDatapath = new File(Voice.getDataStorageBasePath()).getParent();
    mContext = context;
    mCallback = callback;
    attemptInit();    
  }
  
  @Override
    protected void finalize() {
        nativeDestroy();
    }
  
  public int isLanguageAvailable(String language, String country,  String variant) {
    return nativeIsLanguageAvailable(language, country, variant);
  }
  
  public boolean setLanguage(String language, String country, String variant) {
        attemptInit();
        return nativeSetLanguage(language, country, variant);
    }
  
  public void synthesize(String text) {
        nativeSynthesize(text);
    }

    public void stop() {
        nativeStop();
    }
    
    public float getNativeBenchmark() {
    return nativeGetBenchmark();
  }
    
    private void nativeSynthCallback(byte[] audioData) {
        if (mCallback == null)
            return;

        if (audioData == null) {
            mCallback.onSynthDataComplete();
        } else {
            mCallback.onSynthDataReady(audioData);
        }
    }
    
    private void attemptInit() {
        if (mInitialized) {
            return;
        }
        
        if (!nativeCreate(mDatapath)) {
      Log.e(LOG_TAG, "Failed to initialize flite library");
      return;
    }
    Log.i(LOG_TAG, "Initialized Flite");
    mInitialized = true;
        
    }

    private int mNativeData;
  private static native final boolean nativeClassInit();
  private native final boolean nativeCreate(String path);
    private native final boolean nativeDestroy();
  private native final int nativeIsLanguageAvailable(String language, String country, String variant);
  private native final boolean nativeSetLanguage(String language, String country, String variant);
  private native final boolean nativeSynthesize(String text);
  private native final boolean nativeStop();
  
  private native final float nativeGetBenchmark();


  public interface SynthReadyCallback {
        void onSynthDataReady(byte[] audioData);

        void onSynthDataComplete();
    }

  
}

Java Source Code List

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