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/*
* Copyright 2002-2017 Drew Noakes
*
* 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.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.metadata.mov.atoms;
import com.drew.lang.SequentialReader;
import com.drew.metadata.mov.QuickTimeDictionary;
import com.drew.metadata.mov.media.QuickTimeSoundDirectory;
import java.io.IOException;
/**
* https://developer.apple.com/library/content/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html#//apple_ref/doc/uid/TP40000939-CH205-BBCGGHJH
*
* @author Payton Garland
*/
public class SoundSampleDescriptionAtom extends SampleDescriptionAtom<SoundSampleDescriptionAtom.SoundSampleDescription>
{
public SoundSampleDescriptionAtom(SequentialReader reader, Atom atom) throws IOException
{
super(reader, atom);
}
@Override
SoundSampleDescription getSampleDescription(SequentialReader reader) throws IOException
{
return new SoundSampleDescription(reader);
}
public void addMetadata(QuickTimeSoundDirectory directory)
{
SoundSampleDescription description = sampleDescriptions.get(0);
directory.setString(QuickTimeSoundDirectory.TAG_AUDIO_FORMAT, QuickTimeDictionary.lookup(QuickTimeSoundDirectory.TAG_AUDIO_FORMAT, description.dataFormat));
directory.setInt(QuickTimeSoundDirectory.TAG_NUMBER_OF_CHANNELS, description.numberOfChannels);
directory.setInt(QuickTimeSoundDirectory.TAG_AUDIO_SAMPLE_SIZE, description.sampleSize);
}
class SoundSampleDescription extends SampleDescription
{
int version;
int revisionLevel;
int vendor;
int numberOfChannels;
int sampleSize;
int compressionID;
int packetSize;
long sampleRate;
public SoundSampleDescription(SequentialReader reader) throws IOException
{
super(reader);
version = reader.getUInt16();
revisionLevel = reader.getUInt16();
vendor = reader.getInt32();
numberOfChannels = reader.getUInt16();
sampleSize = reader.getUInt16();
compressionID = reader.getUInt16();
packetSize = reader.getUInt16();
sampleRate = reader.getUInt32();
}
}
}
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