120c1c4db7
Test: atest AudioTrackTest#testCodecFormatChangedListener Test: atest AudioTrackTest#testTunerConfiguration Test: atest AudioMetadataTest Test: atest EnumDevicesTest Bug: 152348569 Change-Id: I1c702781f6d3189b98c6b91a14f084333ce16848
60 lines
2.2 KiB
Java
60 lines
2.2 KiB
Java
/*
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* Copyright (C) 2020 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.media;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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/**
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* AudioMetadataMap is a writeable {@code Map}-style
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* interface of {@link AudioMetadata.Key} value pairs.
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* This interface is not guaranteed to be thread-safe
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* unless the underlying implementation for the {@code AudioMetadataMap}
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* states it as thread safe.
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*
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* {@see AudioMetadataReadMap}
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*/
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// TODO: Create a wrapper like java.util.Collections.synchronizedMap?
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public interface AudioMetadataMap extends AudioMetadataReadMap {
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/**
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* Removes the value associated with the key.
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* @param key interface for storing the value.
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* @param <T> type of value.
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* @return the value of the key, null if it doesn't exist.
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*/
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@Nullable
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<T> T remove(@NonNull AudioMetadata.Key<T> key);
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/**
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* Sets a value for the key.
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*
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* @param key interface for storing the value.
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* @param <T> type of value.
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* @param value a non-null value of type T.
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* @return the previous value associated with key or null if it doesn't exist.
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*/
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// See automatic Kotlin overloading for Java interoperability.
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// https://kotlinlang.org/docs/reference/java-interop.html#operators
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// See also Kotlin set for overloaded operator indexing.
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// https://kotlinlang.org/docs/reference/operator-overloading.html#indexed
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// Also the Kotlin mutable-list set.
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// https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/set.html
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@Nullable
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<T> T set(@NonNull AudioMetadata.Key<T> key, @NonNull T value);
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}
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