Android/frameworks_base
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Adding support for plugins.

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This commit is contained in:
Charles Chen
2009-10-20 11:07:14 -07:00
parent fa69b60a86
commit 998207c821
1 changed files with 65 additions and 0 deletions
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65
packages/TtsService/src/android/tts/TtsService.java
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@@ -20,8 +20,10 @@ import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
@@ -39,6 +41,7 @@ import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.TimeUnit;
@@ -146,6 +149,8 @@ public class TtsService extends Service implements OnCompletionListener {
private final ReentrantLock synthesizerLock = new ReentrantLock();
private static SynthProxy sNativeSynth = null;
private String currentSpeechEngineSOFile = "";
@Override
public void onCreate() {
super.onCreate();
@@ -153,6 +158,9 @@ public class TtsService extends Service implements OnCompletionListener {
mResolver = getContentResolver();
currentSpeechEngineSOFile = "";
setEngine(getDefaultEngine());
String soLibPath = "/system/lib/libttspico.so";
if (sNativeSynth == null) {
sNativeSynth = new SynthProxy(soLibPath);
@@ -194,6 +202,54 @@ public class TtsService extends Service implements OnCompletionListener {
}
private int setEngine(String enginePackageName) {
String soFilename = "";
// The SVOX TTS is an exception to how the TTS packaging scheme works
// because it is part of the system and not a 3rd party add-on; thus
// its binary is actually located under /system/lib/
if (enginePackageName.equals("com.svox.pico")) {
soFilename = "/system/lib/libttspico.so";
} else {
// Find the package
Intent intent = new Intent("android.intent.action.START_TTS_ENGINE");
intent.setPackage(enginePackageName);
ResolveInfo[] enginesArray = new ResolveInfo[0];
PackageManager pm = getPackageManager();
List <ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, 0);
if ((resolveInfos == null) || resolveInfos.isEmpty()) {
Log.e(SERVICE_TAG, "Invalid TTS Engine Package: " + enginePackageName);
return TextToSpeech.ERROR;
}
enginesArray = resolveInfos.toArray(enginesArray);
// Generate the TTS .so filename from the package
ActivityInfo aInfo = enginesArray[0].activityInfo;
soFilename = aInfo.name.replace(aInfo.packageName + ".", "") + ".so";
soFilename = soFilename.toLowerCase();
soFilename = "/data/data/" + aInfo.packageName + "/lib/libtts" + soFilename;
}
if (currentSpeechEngineSOFile.equals(soFilename)) {
return TextToSpeech.SUCCESS;
}
File f = new File(soFilename);
if (!f.exists()) {
Log.e(SERVICE_TAG, "Invalid TTS Binary: " + soFilename);
return TextToSpeech.ERROR;
}
if (sNativeSynth != null) {
sNativeSynth.stopSync();
sNativeSynth.shutdown();
sNativeSynth = null;
}
sNativeSynth = new SynthProxy(soFilename);
currentSpeechEngineSOFile = soFilename;
return TextToSpeech.SUCCESS;
}
private void setDefaultSettings() {
setLanguage("", this.getDefaultLanguage(), getDefaultCountry(), getDefaultLocVariant());
@@ -209,6 +265,15 @@ public class TtsService extends Service implements OnCompletionListener {
== 1 );
}
private String getDefaultEngine() {
String defaultEngine = android.provider.Settings.Secure.getString(mResolver,
android.provider.Settings.Secure.TTS_DEFAULT_SYNTH);
if (defaultEngine == null) {
return TextToSpeech.Engine.DEFAULT_SYNTH;
} else {
return defaultEngine;
}
}
private int getDefaultRate() {
return android.provider.Settings.Secure.getInt(mResolver,