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