45 lines
1.6 KiB
Java
45 lines
1.6 KiB
Java
/*
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* Copyright (C) 2013 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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/**
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* Structure that groups a position in frame units relative to an assumed audio stream,
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* together with the estimated time when that frame was presented or is committed to be
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* presented.
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* In the case of audio output, "present" means that audio produced on device
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* is detectable by an external observer off device.
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* The time is based on the implementation's best effort, using whatever knowledge
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* is available to the system, but cannot account for any delay unknown to the implementation.
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*
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* @see AudioTrack#getTimestamp
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*/
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public final class AudioTimestamp
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{
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/**
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* Position in frames relative to start of an assumed audio stream.
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* The low-order 32 bits of position is in wrapping frame units similar to
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* {@link AudioTrack#getPlaybackHeadPosition}.
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*/
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public long framePosition;
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/**
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* The estimated time when frame was presented or is committed to be presented,
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* in the same units and timebase as {@link java.lang.System#nanoTime}.
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*/
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public long nanoTime;
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}
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