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SpeechSynthesis.java
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/
SpeechSynthesis.java
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/*
* Copyright (C) 2012-2013 Reece H. Dunn
* Copyright (C) 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* This file implements the Java API to eSpeak using the JNI bindings.
*
* Android Version: 4.0 (Ice Cream Sandwich)
* API Version: 14
*/
package com.reecedunn.espeak;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.speech.tts.TextToSpeech;
import android.util.DisplayMetrics;
import android.util.Log;
import java.io.File;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class SpeechSynthesis {
private static final String TAG = SpeechSynthesis.class.getSimpleName();
public static final int GENDER_UNSPECIFIED = 0;
public static final int GENDER_MALE = 1;
public static final int GENDER_FEMALE = 2;
static {
System.loadLibrary("ttsespeak");
nativeClassInit();
}
private final Context mContext;
private final SynthReadyCallback mCallback;
private final String mDatapath;
private boolean mInitialized = false;
public SpeechSynthesis(Context context, SynthReadyCallback callback) {
// First, ensure the data directory exists, otherwise init will crash.
final File dataPath = CheckVoiceData.getDataPath(context);
if (!dataPath.exists()) {
Log.e(TAG, "Missing voice data");
dataPath.mkdirs();
}
mContext = context;
mCallback = callback;
mDatapath = dataPath.getParentFile().getPath();
attemptInit();
}
@Override
protected void finalize() {
nativeDestroy();
}
public static String getVersion() {
return nativeGetVersion();
}
public int getSampleRate() {
return nativeGetSampleRate();
}
public int getChannelCount() {
return nativeGetChannelCount();
}
public int getAudioFormat() {
return nativeGetAudioFormat();
}
public int getBufferSizeInBytes() {
final int bufferSizeInMillis = nativeGetBufferSizeInMillis();
final int sampleRate = nativeGetSampleRate();
return (bufferSizeInMillis * sampleRate) / 1000;
}
public List<Voice> getAvailableVoices() {
final List<Voice> voices = new LinkedList<Voice>();
final String[] results = nativeGetAvailableVoices();
for (int i = 0; i < results.length; i += 4) {
final String name = results[i];
final String identifier = results[i + 1];
final int gender = Integer.parseInt(results[i + 2]);
final int age = Integer.parseInt(results[i + 3]);
final Locale locale;
if (name.equals("fa-pin")) {
// Android locales do not support scripts, so fa-Latn is not possible for Farsi Pinglish:
locale = null;
}
else if (name.equals("en-sc")) {
// 'SC' is not a country code.
locale = new Locale("en", "GB", "scotland");
} else if (name.equals("en-wi")) {
// 'WI' is not a country code.
locale = new Locale("en", "029");
} else if (name.equals("es-la")) {
// 'LA' is the country code for Laos, not Latin America.
locale = new Locale("es", "419");
} else if (name.equals("hy-west")) {
// 'west' is not a country code.
locale = new Locale("hy", "", "arevmda");
} else if (name.equals("zh-yue")) {
// Android/Java does not support macrolanguages.
locale = new Locale("zh", "HK");
} else {
String[] parts = name.split("-");
switch (parts.length) {
case 1: // language
locale = new Locale(parts[0]);
break;
case 2: // language-country
if (parts[1].equals("uk")) {
// 'uk' is the language code for Ukranian, not Great Britain.
parts[1] = "GB";
}
locale = new Locale(parts[0], parts[1]);
break;
case 3: // language-country-variant
if (parts[1].equals("uk")) {
// 'uk' is the language code for Ukranian, not Great Britain.
parts[1] = "GB";
}
locale = new Locale(parts[0], parts[1], parts[2]);
break;
default:
locale = null;
}
}
if (locale != null && !locale.getISO3Language().equals("")) {
final Voice voice = new Voice(name, identifier, gender, age, locale);
voices.add(voice);
}
}
return voices;
}
public void setVoiceByProperties(
String name, String languages, int gender, int age, int variant) {
nativeSetVoiceByProperties(name, languages, gender, age, variant);
}
public void setRate(int rate) {
nativeSetRate(rate);
}
public void setPitch(int pitch) {
nativeSetPitch(pitch);
}
public void synthesize(String text) {
nativeSynthesize(text);
}
public void stop() {
nativeStop();
}
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 (!CheckVoiceData.hasBaseResources(mContext)) {
Log.e(TAG, "Missing base resources");
return;
}
if (!nativeCreate(mDatapath)) {
Log.e(TAG, "Failed to initialize speech synthesis library");
return;
}
Log.i(TAG, "Initialized synthesis library with sample rate = " + getSampleRate());
mInitialized = true;
}
public static String getSampleText(Context context, Locale locale) {
final DisplayMetrics metrics = context.getResources().getDisplayMetrics();
final Configuration config = context.getResources().getConfiguration();
final String language = getIanaLocaleCode(locale.getLanguage(), mJavaToIanaLanguageCode);
final String country = getIanaLocaleCode(locale.getCountry(), mJavaToIanaCountryCode);
config.locale = new Locale(language, country, locale.getVariant());
Resources res = new Resources(context.getAssets(), metrics, config);
return res.getString(R.string.sample_text, config.locale.getDisplayName(config.locale));
}
private int mNativeData;
private static native final boolean nativeClassInit();
private native final boolean nativeCreate(String path);
private native final boolean nativeDestroy();
private native final static String nativeGetVersion();
private native final int nativeGetSampleRate();
private native final int nativeGetChannelCount();
private native final int nativeGetAudioFormat();
private native final int nativeGetBufferSizeInMillis();
private native final String[] nativeGetAvailableVoices();
private native final boolean nativeSetVoiceByProperties(
String name, String languages, int gender, int age, int variant);
private native final boolean nativeSetRate(int rate);
private native final boolean nativeSetPitch(int pitch);
private native final boolean nativeSynthesize(String text);
private native final boolean nativeStop();
public interface SynthReadyCallback {
void onSynthDataReady(byte[] audioData);
void onSynthDataComplete();
}
public class Voice {
public final String name;
public final String identifier;
public final int gender;
public final int age;
public final Locale locale;
public Voice(String name, String identifier, int gender, int age, Locale locale) {
this.name = name;
this.identifier = identifier;
this.gender = gender;
this.age = age;
this.locale = locale;
}
/**
* Attempts a partial match against a query locale.
*
* @param query The locale to match.
* @return A text-to-speech availability code. One of:
* <ul>
* <li>{@link TextToSpeech#LANG_NOT_SUPPORTED}
* <li>{@link TextToSpeech#LANG_AVAILABLE}
* <li>{@link TextToSpeech#LANG_COUNTRY_AVAILABLE}
* <li>{@link TextToSpeech#LANG_COUNTRY_VAR_AVAILABLE}
* </ul>
*/
public int match(Locale query) {
if (!locale.getISO3Language().equals(query.getISO3Language())) {
return TextToSpeech.LANG_NOT_SUPPORTED;
} else if (!locale.getISO3Country().equals(query.getISO3Country())) {
return TextToSpeech.LANG_AVAILABLE;
} else if (!locale.getVariant().equals(query.getVariant())) {
return TextToSpeech.LANG_COUNTRY_AVAILABLE;
} else {
return TextToSpeech.LANG_COUNTRY_VAR_AVAILABLE;
}
}
@Override
public String toString() {
return locale.toString().replace('_', '-');
}
}
private static String getIanaLocaleCode(String code, final Map<String, String> javaToIana) {
final String iana = javaToIana.get(code);
if (iana != null) {
return iana;
}
return code;
}
private static final Map<String, String> mJavaToIanaLanguageCode = new HashMap<String, String>();
private static final Map<String, String> mJavaToIanaCountryCode = new HashMap<String, String>();
static {
mJavaToIanaLanguageCode.put("afr", "af");
mJavaToIanaLanguageCode.put("aka", "ak");
mJavaToIanaLanguageCode.put("amh", "am");
mJavaToIanaLanguageCode.put("arg", "an");
mJavaToIanaLanguageCode.put("aze", "az");
mJavaToIanaLanguageCode.put("bul", "bg");
mJavaToIanaLanguageCode.put("bos", "bs");
mJavaToIanaLanguageCode.put("cat", "ca");
mJavaToIanaLanguageCode.put("ces", "cs");
mJavaToIanaLanguageCode.put("cym", "cy");
mJavaToIanaLanguageCode.put("dan", "da");
mJavaToIanaLanguageCode.put("deu", "de");
mJavaToIanaLanguageCode.put("div", "dv");
mJavaToIanaLanguageCode.put("ell", "el");
mJavaToIanaLanguageCode.put("eng", "en");
mJavaToIanaLanguageCode.put("epo", "eo");
mJavaToIanaLanguageCode.put("spa", "es");
mJavaToIanaLanguageCode.put("est", "et");
mJavaToIanaLanguageCode.put("fas", "fa");
mJavaToIanaLanguageCode.put("fin", "fi");
mJavaToIanaLanguageCode.put("fra", "fr");
mJavaToIanaLanguageCode.put("gle", "ga");
mJavaToIanaLanguageCode.put("hin", "hi");
mJavaToIanaLanguageCode.put("hrv", "hr");
mJavaToIanaLanguageCode.put("hat", "ht");
mJavaToIanaLanguageCode.put("hun", "hu");
mJavaToIanaLanguageCode.put("hye", "hy");
mJavaToIanaLanguageCode.put("ind", "in"); // NOTE: The deprecated 'in' code is used by Java/Android.
mJavaToIanaLanguageCode.put("isl", "is");
mJavaToIanaLanguageCode.put("ita", "it");
mJavaToIanaLanguageCode.put("kat", "ka");
mJavaToIanaLanguageCode.put("kaz", "kk");
mJavaToIanaLanguageCode.put("kal", "kl");
mJavaToIanaLanguageCode.put("kan", "kn");
mJavaToIanaLanguageCode.put("kor", "ko");
mJavaToIanaLanguageCode.put("kur", "ku");
mJavaToIanaLanguageCode.put("lat", "la");
mJavaToIanaLanguageCode.put("lit", "lt");
mJavaToIanaLanguageCode.put("lav", "lv");
mJavaToIanaLanguageCode.put("mkd", "mk");
mJavaToIanaLanguageCode.put("mal", "ml");
mJavaToIanaLanguageCode.put("mlt", "mt");
mJavaToIanaLanguageCode.put("nep", "ne");
mJavaToIanaLanguageCode.put("nld", "nl");
mJavaToIanaLanguageCode.put("nor", "no");
mJavaToIanaLanguageCode.put("pan", "pa");
mJavaToIanaLanguageCode.put("pol", "pl");
mJavaToIanaLanguageCode.put("por", "pt");
mJavaToIanaLanguageCode.put("ron", "ro");
mJavaToIanaLanguageCode.put("rus", "ru");
mJavaToIanaLanguageCode.put("kin", "rw");
mJavaToIanaLanguageCode.put("sin", "si");
mJavaToIanaLanguageCode.put("slk", "sk");
mJavaToIanaLanguageCode.put("slv", "sl");
mJavaToIanaLanguageCode.put("sqi", "sq");
mJavaToIanaLanguageCode.put("srp", "sr");
mJavaToIanaLanguageCode.put("swe", "sv");
mJavaToIanaLanguageCode.put("swa", "sw");
mJavaToIanaLanguageCode.put("tam", "ta");
mJavaToIanaLanguageCode.put("tel", "te");
mJavaToIanaLanguageCode.put("tsn", "tn");
mJavaToIanaLanguageCode.put("tur", "tr");
mJavaToIanaLanguageCode.put("tat", "tt");
mJavaToIanaLanguageCode.put("urd", "ur");
mJavaToIanaLanguageCode.put("vie", "vi");
mJavaToIanaLanguageCode.put("wol", "wo");
mJavaToIanaLanguageCode.put("zho", "zh");
mJavaToIanaLanguageCode.put("yue", "zh");
mJavaToIanaCountryCode.put("029", ""); // Locale.getCountry() does not map numeric country codes.
mJavaToIanaCountryCode.put("419", ""); // Locale.getCountry() does not map numeric country codes.
mJavaToIanaCountryCode.put("BEL", "BE");
mJavaToIanaCountryCode.put("BRA", "BR");
mJavaToIanaCountryCode.put("FRA", "FR");
mJavaToIanaCountryCode.put("GBR", "GB");
mJavaToIanaCountryCode.put("PRT", "PT");
mJavaToIanaCountryCode.put("USA", "US");
}
}