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/*
* Copyright (C) 2015 The CyanogenMod 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 cyanogenmod.media;
public class MediaRecorder {
/**
* Allows an application to listen passively to the device microphone in the background
* to detect speech of a hotword or phrase.
*
* This is a system|signature permission.
*/
public static final String CAPTURE_AUDIO_HOTWORD_PERMISSION
= "android.permission.CAPTURE_AUDIO_HOTWORD";
/**
* <p>Broadcast Action: The state of the HOTWORD audio input has changed.:</p>
* <ul>
* <li><em>state</em> - A String value indicating the state of the input.
* {@link #EXTRA_HOTWORD_INPUT_STATE}. The value will be one of:
* {@link android.media.AudioRecord#RECORDSTATE_RECORDING} or
* {@link android.media.AudioRecord#RECORDSTATE_STOPPED}.
* </li>
* <li><em>package</em> - A String value indicating the package name of the application
* that currently holds the HOTWORD input.
* {@link #EXTRA_CURRENT_PACKAGE_NAME}
* </li>
* </ul>
*
* <p class="note">This is a protected intent that can only be sent
* by the system. It can only be received by packages that hold
* {@link android.Manifest.permission#CAPTURE_AUDIO_HOTWORD}.
*/
//@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String ACTION_HOTWORD_INPUT_CHANGED
= "com.cyanogenmod.intent.action.HOTWORD_INPUT_CHANGED";
/**
* Extra for {@link #ACTION_HOTWORD_INPUT_CHANGED} that provides the package name of the
* app in that controlled the HOTWORD input when the state changed. Can be reused for other
* purposes.
*/
public static final String EXTRA_CURRENT_PACKAGE_NAME =
"com.cyanogenmod.intent.extra.CURRENT_PACKAGE_NAME";
/**
* Extra for {@link #ACTION_HOTWORD_INPUT_CHANGED} that provides the state of
* the input when the broadcast action was sent.
* @hide
*/
public static final String EXTRA_HOTWORD_INPUT_STATE =
"com.cyanogenmod.intent.extra.HOTWORD_INPUT_STATE";
public static class AudioSource {
/**
* Audio source for preemptible, low-priority software hotword detection
* It presents the same gain and pre processing tuning as
* {@link android.media.MediaRecorder.AudioSource#VOICE_RECOGNITION}.
* <p>
* An application should use this audio source when it wishes to do
* always-on software hotword detection, while gracefully giving in to any other application
* that might want to read from the microphone.
* </p>
* You must hold {@link cyanogenmod.media.MediaRecorder#CAPTURE_AUDIO_HOTWORD_PERMISSION}
* to use this audio source.
*/
public static final int HOTWORD = 1999;
}
}
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