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/*
* Copyright (C) 2011 The Android Open Source Project
*
* 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.
*/
package android.speech.tts;
import android.media.AudioTrack;
import android.speech.tts.TextToSpeechService.UtteranceCompletedDispatcher;
import java.util.LinkedList;
/**
* Params required to play back a synthesis request.
*/
final class SynthesisMessageParams extends MessageParams {
final int mStreamType;
final int mSampleRateInHz;
final int mAudioFormat;
final int mChannelCount;
final float mVolume;
final float mPan;
public volatile AudioTrack mAudioTrack;
private final LinkedList<ListEntry> mDataBufferList = new LinkedList<ListEntry>();
SynthesisMessageParams(int streamType, int sampleRate,
int audioFormat, int channelCount,
float volume, float pan, UtteranceCompletedDispatcher dispatcher,
String callingApp) {
super(dispatcher, callingApp);
mStreamType = streamType;
mSampleRateInHz = sampleRate;
mAudioFormat = audioFormat;
mChannelCount = channelCount;
mVolume = volume;
mPan = pan;
// initially null.
mAudioTrack = null;
}
@Override
int getType() {
return TYPE_SYNTHESIS;
}
synchronized void addBuffer(byte[] buffer, int offset, int length) {
mDataBufferList.add(new ListEntry(buffer, offset, length));
}
synchronized void addBuffer(byte[] buffer) {
mDataBufferList.add(new ListEntry(buffer, 0, buffer.length));
}
synchronized ListEntry getNextBuffer() {
return mDataBufferList.poll();
}
void setAudioTrack(AudioTrack audioTrack) {
mAudioTrack = audioTrack;
}
AudioTrack getAudioTrack() {
return mAudioTrack;
}
static final class ListEntry {
final byte[] mBytes;
final int mOffset;
final int mLength;
ListEntry(byte[] bytes, int offset, int length) {
mBytes = bytes;
mOffset = offset;
mLength = length;
}
}
}
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