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Enabling plugin engines to pass in their engine specific settings

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via a ContentProvider to the TtsService so that the TtsService can
invoke their .so file with those settings.

Change-Id: Icd0e966971c36ebb4da191a50cda96d6f4525df5
This commit is contained in:
Charles Chen
2010-03-17 23:47:07 -07:00
parent e4eb5bf243
commit 726a40bc50
1 changed files with 20 additions and 6 deletions
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26
packages/TtsService/src/android/tts/TtsService.java
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@@ -24,6 +24,7 @@ import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.database.Cursor;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
@@ -164,11 +165,6 @@ public class TtsService extends Service implements OnCompletionListener {
currentSpeechEngineSOFile = "";
setEngine(getDefaultEngine());
String soLibPath = "/system/lib/libttspico.so";
if (sNativeSynth == null) {
sNativeSynth = new SynthProxy(soLibPath, "");
}
mSelf = this;
mIsSpeaking = false;
mSynthBusy = false;
@@ -269,7 +265,25 @@ public class TtsService extends Service implements OnCompletionListener {
sNativeSynth.shutdown();
sNativeSynth = null;
}
sNativeSynth = new SynthProxy(soFilename, "");
// Load the engineConfig from the plugin if it has any special configuration
// to be loaded. By convention, if an engine wants the TTS framework to pass
// in any configuration, it must put it into its content provider which has the URI:
// content://<packageName>.providers.SettingsProvider
// That content provider must provide a Cursor which returns the String that
// is to be passed back to the native .so file for the plugin when getString(0) is
// called on it.
// Note that the TTS framework does not care what this String data is: it is something
// that comes from the engine plugin and is consumed only by the engine plugin itself.
String engineConfig = "";
Cursor c = getContentResolver().query(Uri.parse("content://" + enginePackageName
+ ".providers.SettingsProvider"), null, null, null, null);
if (c != null){
c.moveToFirst();
engineConfig = c.getString(0);
c.close();
}
sNativeSynth = new SynthProxy(soFilename, engineConfig);
currentSpeechEngineSOFile = soFilename;
return TextToSpeech.SUCCESS;
}