API to listen in on the synthesized audio. (c99ba1c3) · Commits · e / os / android_frameworks_base

api/current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -34412,6 +34412,8 @@ package android.speech.tts {

		public abstract class UtteranceProgressListener {
		ctor public UtteranceProgressListener();
		method public void onAudioAvailable(java.lang.String, byte[]);
		method public void onBeginSynthesis(java.lang.String, int, int, int);
		method public abstract void onDone(java.lang.String);
		method public abstract deprecated void onError(java.lang.String);
		method public void onError(java.lang.String, int);

api/system-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -36662,6 +36662,8 @@ package android.speech.tts {

		public abstract class UtteranceProgressListener {
		ctor public UtteranceProgressListener();
		method public void onAudioAvailable(java.lang.String, byte[]);
		method public void onBeginSynthesis(java.lang.String, int, int, int);
		method public abstract void onDone(java.lang.String);
		method public abstract deprecated void onError(java.lang.String);
		method public void onError(java.lang.String, int);

api/test-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -34426,6 +34426,8 @@ package android.speech.tts {

		public abstract class UtteranceProgressListener {
		ctor public UtteranceProgressListener();
		method public void onAudioAvailable(java.lang.String, byte[]);
		method public void onBeginSynthesis(java.lang.String, int, int, int);
		method public abstract void onDone(java.lang.String);
		method public abstract deprecated void onError(java.lang.String);
		method public void onError(java.lang.String, int);

core/java/android/speech/tts/FileSynthesisCallback.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -111,6 +111,7 @@ class FileSynthesisCallback extends AbstractSynthesisCallback {
		"of AudioFormat.ENCODING_PCM_8BIT, AudioFormat.ENCODING_PCM_16BIT or " +
		"AudioFormat.ENCODING_PCM_FLOAT");
		}
		mDispatcher.dispatchOnBeginSynthesis(sampleRateInHz, audioFormat, channelCount);

		FileChannel fileChannel = null;
		synchronized (mStateLock) {
		@@ -176,6 +177,10 @@ class FileSynthesisCallback extends AbstractSynthesisCallback {
		fileChannel = mFileChannel;
		}

		final byte[] bufferCopy = new byte[length];
		System.arraycopy(buffer, offset, bufferCopy, 0, length);
		mDispatcher.dispatchOnAudioAvailable(bufferCopy);

		try {
		fileChannel.write(ByteBuffer.wrap(buffer, offset, length));
		return TextToSpeech.SUCCESS;

core/java/android/speech/tts/ITextToSpeechCallback.aidl

+38 −6

Original line number	Diff line number	Diff line
		@@ -22,33 +22,65 @@ package android.speech.tts;
		*/
		oneway interface ITextToSpeechCallback {
		/**
		* Tells the client that the synthesis has started.
		* Tells the client that the synthesis has started playing.
		*
		* @param utteranceId Unique id identifying synthesis request.
		* @param utteranceId Unique id identifying the synthesis request.
		*/
		void onStart(String utteranceId);

		/**
		* Tells the client that the synthesis has finished.
		* Tells the client that the synthesis has finished playing.
		*
		* @param utteranceId Unique id identifying synthesis request.
		* @param utteranceId Unique id identifying the synthesis request.
		*/
		void onSuccess(String utteranceId);

		/**
		* Tells the client that the synthesis was stopped.
		*
		* @param utteranceId Unique id identifying synthesis request.
		* @param utteranceId Unique id identifying the synthesis request.
		*/
		void onStop(String utteranceId, boolean isStarted);

		/**
		* Tells the client that the synthesis has failed.
		*
		* @param utteranceId Unique id identifying synthesis request.
		* @param utteranceId Unique id identifying the synthesis request.
		* @param errorCode One of the values from
		* {@link android.speech.tts.v2.TextToSpeech}.
		*/
		void onError(String utteranceId, int errorCode);

		/**
		* Tells the client that the TTS engine has started synthesizing the audio for a request.
		*
		* <p>
		* This doesn't mean the synthesis request has already started playing (for example when there
		* are synthesis requests ahead of it in the queue), but after receiving this callback you can
		* expect onAudioAvailable to be called.
		* </p>
		*
		* @param utteranceId Unique id identifying the synthesis request.
		* @param sampleRateInHz Sample rate in HZ of the generated audio.
		* @param audioFormat The audio format of the generated audio in the {@link #onAudioAvailable}
		* call. Should be one of {@link android.media.AudioFormat.ENCODING_PCM_8BIT},
		* {@link android.media.AudioFormat.ENCODING_PCM_16BIT} or
		* {@link android.media.AudioFormat.ENCODING_PCM_FLOAT}.
		* @param channelCount The number of channels.
		*/
		void onBeginSynthesis(String utteranceId, int sampleRateInHz, int audioFormat, int channelCount);

		/**
		* Tells the client about a chunk of the synthesized audio.
		*
		* <p>
		* Called when a chunk of the synthesized audio is ready. This may be called more than once for
		* every synthesis request, thereby streaming the audio to the client.
		* </p>
		*
		* @param utteranceId Unique id identifying the synthesis request.
		* @param audio The raw audio bytes. Its format is specified by the {@link #onStartAudio}
		* callback.
		*/
		void onAudioAvailable(String utteranceId, in byte[] audio);
		}