455 lines
20 KiB
Java
455 lines
20 KiB
Java
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware.soundtrigger;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.media.permission.ClearCallingIdentityContext;
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import android.media.permission.Identity;
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import android.media.permission.SafeCloseable;
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import android.media.soundtrigger.PhraseSoundModel;
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import android.media.soundtrigger.SoundModel;
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import android.media.soundtrigger_middleware.ISoundTriggerCallback;
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import android.media.soundtrigger_middleware.ISoundTriggerMiddlewareService;
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import android.media.soundtrigger_middleware.ISoundTriggerModule;
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import android.media.soundtrigger_middleware.PhraseRecognitionEventSys;
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import android.media.soundtrigger_middleware.RecognitionEventSys;
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import android.os.Build;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.Looper;
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import android.os.Message;
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import android.os.RemoteException;
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import android.util.Log;
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import java.io.IOException;
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/**
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* The SoundTriggerModule provides APIs to control sound models and sound detection
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* on a given sound trigger hardware module.
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*
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* @hide
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*/
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public class SoundTriggerModule {
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private static final String TAG = "SoundTriggerModule";
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private static final int EVENT_RECOGNITION = 1;
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private static final int EVENT_SERVICE_DIED = 2;
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private static final int EVENT_RESOURCES_AVAILABLE = 3;
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private static final int EVENT_MODEL_UNLOADED = 4;
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
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private int mId;
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private EventHandlerDelegate mEventHandlerDelegate;
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private ISoundTriggerModule mService;
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/**
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* This variant is intended for use when the caller is acting an originator, rather than on
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* behalf of a different entity, as far as authorization goes.
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*/
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public SoundTriggerModule(@NonNull ISoundTriggerMiddlewareService service,
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int moduleId, @NonNull SoundTrigger.StatusListener listener, @NonNull Looper looper,
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@NonNull Identity originatorIdentity) {
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mId = moduleId;
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mEventHandlerDelegate = new EventHandlerDelegate(listener, looper);
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try {
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try (SafeCloseable ignored = ClearCallingIdentityContext.create()) {
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mService = service.attachAsOriginator(moduleId, originatorIdentity,
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mEventHandlerDelegate);
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}
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mService.asBinder().linkToDeath(mEventHandlerDelegate, 0);
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} catch (RemoteException e) {
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throw e.rethrowFromSystemServer();
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}
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}
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/**
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* This variant is intended for use when the caller is acting as a middleman, i.e. on behalf of
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* a different entity, as far as authorization goes.
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*/
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public SoundTriggerModule(@NonNull ISoundTriggerMiddlewareService service,
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int moduleId, @NonNull SoundTrigger.StatusListener listener, @NonNull Looper looper,
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@NonNull Identity middlemanIdentity, @NonNull Identity originatorIdentity,
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boolean isTrusted) {
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mId = moduleId;
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mEventHandlerDelegate = new EventHandlerDelegate(listener, looper);
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try {
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try (SafeCloseable ignored = ClearCallingIdentityContext.create()) {
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mService = service.attachAsMiddleman(moduleId, middlemanIdentity,
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originatorIdentity,
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mEventHandlerDelegate,
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isTrusted);
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}
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mService.asBinder().linkToDeath(mEventHandlerDelegate, 0);
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} catch (RemoteException e) {
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throw e.rethrowFromSystemServer();
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}
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}
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@Override
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protected void finalize() {
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detach();
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}
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/**
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* Detach from this module. The {@link SoundTrigger.StatusListener} callback will not be called
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* anymore and associated resources will be released.
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* All models must have been unloaded prior to detaching.
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* @deprecated Use {@link android.media.soundtrigger.SoundTriggerManager} instead.
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*/
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@Deprecated
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@UnsupportedAppUsage
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public synchronized void detach() {
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try {
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if (mService != null) {
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mService.asBinder().unlinkToDeath(mEventHandlerDelegate, 0);
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mService.detach();
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mService = null;
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}
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} catch (Exception e) {
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SoundTrigger.handleException(e);
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}
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}
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/**
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* Load a {@link SoundTrigger.SoundModel} to the hardware. A sound model must be loaded in
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* order to start listening to a key phrase in this model.
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* @param model The sound model to load.
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* @param soundModelHandle an array of int where the sound model handle will be returned.
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* @return - {@link SoundTrigger#STATUS_OK} in case of success
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* - {@link SoundTrigger#STATUS_ERROR} in case of unspecified error
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* - {@link SoundTrigger#STATUS_BUSY} in case of transient resource constraints
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* - {@link SoundTrigger#STATUS_PERMISSION_DENIED} if the caller does not have
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* system permission
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* - {@link SoundTrigger#STATUS_NO_INIT} if the native service cannot be reached
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* - {@link SoundTrigger#STATUS_BAD_VALUE} if parameters are invalid
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* - {@link SoundTrigger#STATUS_DEAD_OBJECT} if the binder transaction to the native
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* service fails
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* - {@link SoundTrigger#STATUS_INVALID_OPERATION} if the call is out of sequence
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* @deprecated Use {@link android.media.soundtrigger.SoundTriggerManager} instead.
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*/
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@Deprecated
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@UnsupportedAppUsage
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public synchronized int loadSoundModel(@NonNull SoundTrigger.SoundModel model,
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@NonNull int[] soundModelHandle) {
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try {
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if (model instanceof SoundTrigger.GenericSoundModel) {
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SoundModel aidlModel = ConversionUtil.api2aidlGenericSoundModel(
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(SoundTrigger.GenericSoundModel) model);
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try {
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soundModelHandle[0] = mService.loadModel(aidlModel);
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} finally {
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// TODO(b/219825762): We should be able to use the entire object in a
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// try-with-resources
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// clause, instead of having to explicitly close internal fields.
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if (aidlModel.data != null) {
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try {
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aidlModel.data.close();
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} catch (IOException e) {
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Log.e(TAG, "Failed to close file", e);
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}
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}
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}
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return SoundTrigger.STATUS_OK;
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}
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if (model instanceof SoundTrigger.KeyphraseSoundModel) {
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PhraseSoundModel aidlModel = ConversionUtil.api2aidlPhraseSoundModel(
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(SoundTrigger.KeyphraseSoundModel) model);
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try {
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soundModelHandle[0] = mService.loadPhraseModel(aidlModel);
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} finally {
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// TODO(b/219825762): We should be able to use the entire object in a
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// try-with-resources
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// clause, instead of having to explicitly close internal fields.
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if (aidlModel.common.data != null) {
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try {
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aidlModel.common.data.close();
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} catch (IOException e) {
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Log.e(TAG, "Failed to close file", e);
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}
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}
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}
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return SoundTrigger.STATUS_OK;
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}
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return SoundTrigger.STATUS_BAD_VALUE;
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} catch (Exception e) {
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return SoundTrigger.handleException(e);
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}
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}
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/**
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* Unload a {@link SoundTrigger.SoundModel} and abort any pendiong recognition
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* @param soundModelHandle The sound model handle
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* @return - {@link SoundTrigger#STATUS_OK} in case of success
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* - {@link SoundTrigger#STATUS_ERROR} in case of unspecified error
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* - {@link SoundTrigger#STATUS_PERMISSION_DENIED} if the caller does not have
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* system permission
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* - {@link SoundTrigger#STATUS_NO_INIT} if the native service cannot be reached
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* - {@link SoundTrigger#STATUS_BAD_VALUE} if the sound model handle is invalid
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* - {@link SoundTrigger#STATUS_DEAD_OBJECT} if the binder transaction to the native
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* service fails
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* @deprecated Use {@link android.media.soundtrigger.SoundTriggerManager} instead.
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*/
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@UnsupportedAppUsage
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@Deprecated
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public synchronized int unloadSoundModel(int soundModelHandle) {
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try {
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mService.unloadModel(soundModelHandle);
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return SoundTrigger.STATUS_OK;
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} catch (Exception e) {
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return SoundTrigger.handleException(e);
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}
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}
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/**
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* Start listening to all key phrases in a {@link SoundTrigger.SoundModel}.
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* Recognition must be restarted after each callback (success or failure) received on
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* the {@link SoundTrigger.StatusListener}.
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* @param soundModelHandle The sound model handle to start listening to
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* @param config contains configuration information for this recognition request:
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* recognition mode, keyphrases, users, minimum confidence levels...
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* @return - {@link SoundTrigger#STATUS_OK} in case of success
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* - {@link SoundTrigger#STATUS_ERROR} in case of unspecified error
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* - {@link SoundTrigger#STATUS_BUSY} in case of transient resource constraints
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* - {@link SoundTrigger#STATUS_PERMISSION_DENIED} if the caller does not have
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* system permission
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* - {@link SoundTrigger#STATUS_NO_INIT} if the native service cannot be reached
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* - {@link SoundTrigger#STATUS_BAD_VALUE} if the sound model handle is invalid
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* - {@link SoundTrigger#STATUS_DEAD_OBJECT} if the binder transaction to the native
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* service fails
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* - {@link SoundTrigger#STATUS_INVALID_OPERATION} if the call is out of sequence
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* @deprecated Use {@link android.media.soundtrigger.SoundTriggerManager} instead.
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*/
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@UnsupportedAppUsage
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@Deprecated
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public synchronized int startRecognition(int soundModelHandle,
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SoundTrigger.RecognitionConfig config) {
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try {
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mService.startRecognition(soundModelHandle,
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ConversionUtil.api2aidlRecognitionConfig(config));
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return SoundTrigger.STATUS_OK;
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} catch (Exception e) {
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return SoundTrigger.handleException(e);
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}
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}
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/**
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* Same as above, but return a binder token associated with the session.
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* @hide
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*/
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public synchronized IBinder startRecognitionWithToken(int soundModelHandle,
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SoundTrigger.RecognitionConfig config) throws RemoteException {
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return mService.startRecognition(soundModelHandle,
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ConversionUtil.api2aidlRecognitionConfig(config));
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}
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/**
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* Stop listening to all key phrases in a {@link SoundTrigger.SoundModel}
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* @param soundModelHandle The sound model handle to stop listening to
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* @return - {@link SoundTrigger#STATUS_OK} in case of success
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* - {@link SoundTrigger#STATUS_ERROR} in case of unspecified error
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* - {@link SoundTrigger#STATUS_PERMISSION_DENIED} if the caller does not have
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* system permission
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* - {@link SoundTrigger#STATUS_NO_INIT} if the native service cannot be reached
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* - {@link SoundTrigger#STATUS_BAD_VALUE} if the sound model handle is invalid
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* - {@link SoundTrigger#STATUS_DEAD_OBJECT} if the binder transaction to the native
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* service fails
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* - {@link SoundTrigger#STATUS_INVALID_OPERATION} if the call is out of sequence
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* @deprecated Use {@link android.media.soundtrigger.SoundTriggerManager} instead.
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*/
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@UnsupportedAppUsage
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@Deprecated
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public synchronized int stopRecognition(int soundModelHandle) {
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try {
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mService.stopRecognition(soundModelHandle);
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return SoundTrigger.STATUS_OK;
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} catch (Exception e) {
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return SoundTrigger.handleException(e);
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}
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}
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/**
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* Get the current state of a {@link SoundTrigger.SoundModel}.
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* The state will be returned asynchronously as a {@link SoundTrigger.RecognitionEvent}
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* in the callback registered in the
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* {@link SoundTrigger#attachModule(int, SoundTrigger.StatusListener, Handler)} method.
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* @param soundModelHandle The sound model handle indicating which model's state to return
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* @return - {@link SoundTrigger#STATUS_OK} in case of success
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* - {@link SoundTrigger#STATUS_ERROR} in case of unspecified error
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* - {@link SoundTrigger#STATUS_PERMISSION_DENIED} if the caller does not have
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* system permission
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* - {@link SoundTrigger#STATUS_NO_INIT} if the native service cannot be reached
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* - {@link SoundTrigger#STATUS_BAD_VALUE} if the sound model handle is invalid
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* - {@link SoundTrigger#STATUS_DEAD_OBJECT} if the binder transaction to the native
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* service fails
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* - {@link SoundTrigger#STATUS_INVALID_OPERATION} if the call is out of sequence
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*/
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public synchronized int getModelState(int soundModelHandle) {
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try {
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mService.forceRecognitionEvent(soundModelHandle);
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return SoundTrigger.STATUS_OK;
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} catch (Exception e) {
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return SoundTrigger.handleException(e);
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}
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}
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/**
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* Set a model specific {@link ModelParams} with the given value. This
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* parameter will keep its value for the duration the model is loaded regardless of starting
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* and stopping recognition. Once the model is unloaded, the value will be lost.
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* {@link #queryParameter} should be checked first before calling this method.
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*
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* @param soundModelHandle handle of model to apply parameter
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* @param modelParam {@link ModelParams}
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* @param value Value to set
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* @return - {@link SoundTrigger#STATUS_OK} in case of success
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* - {@link SoundTrigger#STATUS_NO_INIT} if the native service cannot be reached
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* - {@link SoundTrigger#STATUS_BAD_VALUE} invalid input parameter
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* - {@link SoundTrigger#STATUS_INVALID_OPERATION} if the call is out of sequence or
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* if API is not supported by HAL
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*/
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public synchronized int setParameter(int soundModelHandle, @ModelParams int modelParam,
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int value) {
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try {
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mService.setModelParameter(soundModelHandle,
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ConversionUtil.api2aidlModelParameter(modelParam), value);
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return SoundTrigger.STATUS_OK;
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} catch (Exception e) {
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return SoundTrigger.handleException(e);
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}
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}
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/**
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* Get a model specific {@link ModelParams}. This parameter will keep its value
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* for the duration the model is loaded regardless of starting and stopping recognition.
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* Once the model is unloaded, the value will be lost. If the value is not set, a default
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* value is returned. See {@link ModelParams} for parameter default values.
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* {@link #queryParameter} should be checked first before
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* calling this method. Otherwise, an exception can be thrown.
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*
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* @param soundModelHandle handle of model to get parameter
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* @param modelParam {@link ModelParams}
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* @return value of parameter
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*/
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public synchronized int getParameter(int soundModelHandle, @ModelParams int modelParam) {
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try {
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return mService.getModelParameter(soundModelHandle,
|
||
|
|
ConversionUtil.api2aidlModelParameter(modelParam));
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
throw e.rethrowFromSystemServer();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Query the parameter support and range for a given {@link ModelParams}.
|
||
|
|
* This method should be check prior to calling {@link #setParameter} or {@link #getParameter}.
|
||
|
|
*
|
||
|
|
* @param soundModelHandle handle of model to get parameter
|
||
|
|
* @param modelParam {@link ModelParams}
|
||
|
|
* @return supported range of parameter, null if not supported
|
||
|
|
*/
|
||
|
|
@Nullable
|
||
|
|
public synchronized SoundTrigger.ModelParamRange queryParameter(int soundModelHandle,
|
||
|
|
@ModelParams int modelParam) {
|
||
|
|
try {
|
||
|
|
return ConversionUtil.aidl2apiModelParameterRange(mService.queryModelParameterSupport(
|
||
|
|
soundModelHandle,
|
||
|
|
ConversionUtil.api2aidlModelParameter(modelParam)));
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
throw e.rethrowFromSystemServer();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private class EventHandlerDelegate extends ISoundTriggerCallback.Stub implements
|
||
|
|
IBinder.DeathRecipient {
|
||
|
|
private final Handler mHandler;
|
||
|
|
|
||
|
|
EventHandlerDelegate(@NonNull final SoundTrigger.StatusListener listener,
|
||
|
|
@NonNull Looper looper) {
|
||
|
|
|
||
|
|
// construct the event handler with this looper
|
||
|
|
// implement the event handler delegate
|
||
|
|
mHandler = new Handler(looper) {
|
||
|
|
@Override
|
||
|
|
public void handleMessage(Message msg) {
|
||
|
|
switch (msg.what) {
|
||
|
|
case EVENT_RECOGNITION:
|
||
|
|
listener.onRecognition(
|
||
|
|
(SoundTrigger.RecognitionEvent) msg.obj);
|
||
|
|
break;
|
||
|
|
case EVENT_RESOURCES_AVAILABLE:
|
||
|
|
listener.onResourcesAvailable();
|
||
|
|
break;
|
||
|
|
case EVENT_MODEL_UNLOADED:
|
||
|
|
listener.onModelUnloaded((Integer) msg.obj);
|
||
|
|
break;
|
||
|
|
case EVENT_SERVICE_DIED:
|
||
|
|
listener.onServiceDied();
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
Log.e(TAG, "Unknown message: " + msg.toString());
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public synchronized void onRecognition(int handle, RecognitionEventSys event,
|
||
|
|
int captureSession)
|
||
|
|
throws RemoteException {
|
||
|
|
Message m = mHandler.obtainMessage(EVENT_RECOGNITION,
|
||
|
|
ConversionUtil.aidl2apiRecognitionEvent(handle, captureSession, event));
|
||
|
|
mHandler.sendMessage(m);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public synchronized void onPhraseRecognition(int handle, PhraseRecognitionEventSys event,
|
||
|
|
int captureSession)
|
||
|
|
throws RemoteException {
|
||
|
|
Message m = mHandler.obtainMessage(EVENT_RECOGNITION,
|
||
|
|
ConversionUtil.aidl2apiPhraseRecognitionEvent(handle, captureSession, event));
|
||
|
|
mHandler.sendMessage(m);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public void onModelUnloaded(int modelHandle) throws RemoteException {
|
||
|
|
Message m = mHandler.obtainMessage(EVENT_MODEL_UNLOADED, modelHandle);
|
||
|
|
mHandler.sendMessage(m);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public synchronized void onResourcesAvailable() throws RemoteException {
|
||
|
|
Message m = mHandler.obtainMessage(EVENT_RESOURCES_AVAILABLE);
|
||
|
|
mHandler.sendMessage(m);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public synchronized void onModuleDied() {
|
||
|
|
Message m = mHandler.obtainMessage(EVENT_SERVICE_DIED);
|
||
|
|
mHandler.sendMessage(m);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public synchronized void binderDied() {
|
||
|
|
Message m = mHandler.obtainMessage(EVENT_SERVICE_DIED);
|
||
|
|
mHandler.sendMessage(m);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|