95 lines
2.7 KiB
Java
95 lines
2.7 KiB
Java
/*
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* Copyright 2015 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.os.Parcel;
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/**
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* Class that embodies one timed metadata access unit, including
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*
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* <ul>
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* <li> a time stamp, and </li>
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* <li> raw uninterpreted byte-array extracted directly from the container. </li>
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* </ul>
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*
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* @see MediaPlayer#setOnTimedMetaDataAvailableListener(android.media.MediaPlayer.OnTimedMetaDataAvailableListener)
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*/
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public final class TimedMetaData {
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private static final String TAG = "TimedMetaData";
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private long mTimestampUs;
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private byte[] mMetaData;
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/**
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* @hide
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*/
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static TimedMetaData createTimedMetaDataFromParcel(Parcel parcel) {
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return new TimedMetaData(parcel);
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}
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private TimedMetaData(Parcel parcel) {
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if (!parseParcel(parcel)) {
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throw new IllegalArgumentException("parseParcel() fails");
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}
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}
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/**
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* Constructor.
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*
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* @param timestampUs the timestamp in microsecond for the timed metadata
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* @param metaData the metadata array for the timed metadata. No data copying is made.
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* It should not be null.
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*/
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public TimedMetaData(long timestampUs, @NonNull byte[] metaData) {
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if (metaData == null) {
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throw new IllegalArgumentException("null metaData is not allowed");
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}
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mTimestampUs = timestampUs;
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mMetaData = metaData;
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}
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/**
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* @return the timestamp associated with this metadata access unit in microseconds;
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* 0 denotes playback start.
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*/
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public long getTimestamp() {
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return mTimestampUs;
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}
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/**
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* @return raw, uninterpreted content of this metadata access unit; for ID3 tags this includes
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* everything starting from the 3 byte signature "ID3".
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*/
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public byte[] getMetaData() {
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return mMetaData;
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}
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private boolean parseParcel(Parcel parcel) {
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parcel.setDataPosition(0);
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if (parcel.dataAvail() == 0) {
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return false;
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}
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mTimestampUs = parcel.readLong();
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mMetaData = new byte[parcel.readInt()];
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parcel.readByteArray(mMetaData);
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return true;
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}
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}
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