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/*
* Copyright (c) 2016, 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 com.android.car.stream;
/**
* A class that holds various common constants used through the Stream service.
*/
public class StreamServiceConstants {
/**
* The id that should be used for all media cards. Using a common id for all media cards
* ensure that only one will show at a time.
*/
public static long MEDIA_CARD_ID = -1L;
/**
* The id within the {@link MediaPlaybackExtension} that indicates this MediaPlaybackExtension
* is coming from a non-radio application.
*
* <p>The reason that this id is necessary is because the radio does not use the MediaSession
* to notify of playback state. Thus, notifications about playback state for media apps and
* radio are not guaranteed to be in order. This id along with {@link #MEDIA_EXTENSION_ID_RADIO}
* will help differentiate which application is firing a change.
*/
public static long MEDIA_EXTENSION_ID_NON_RADIO = -1L;
/**
* The id within the {@link MediaPlaybackExtension} that indicates this MediaPlaybackExtension
* is coming from a radio application.
*
* @see {@link #MEDIA_EXTENSION_ID_NON_RADIO}
*/
public static long MEDIA_EXTENSION_ID_RADIO= -2L;
private StreamServiceConstants() {}
}
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