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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.mp4.boxes;
import com.drew.lang.SequentialReader;
import com.drew.metadata.mp4.media.Mp4SoundDirectory;
import java.io.IOException;
/**
* ISO/IED 14496-12:2015 pg.161
*/
public class AudioSampleEntry extends SampleEntry
{
int channelcount;
int samplesize;
long samplerate;
public AudioSampleEntry(SequentialReader reader, Box box) throws IOException
{
super(reader, box);
reader.skip(8); // Reserved
channelcount = reader.getUInt16();
samplesize = reader.getInt16();
reader.skip(2); // Pre-defined
reader.skip(2); // Reserved
samplerate = reader.getUInt32();
// ChannelLayout()
// DownMix and/or DRC boxes
// More boxes as needed
}
public void addMetadata(Mp4SoundDirectory directory)
{
directory.setInt(Mp4SoundDirectory.TAG_NUMBER_OF_CHANNELS, channelcount);
directory.setInt(Mp4SoundDirectory.TAG_AUDIO_SAMPLE_SIZE, samplesize);
directory.setLong(Mp4SoundDirectory.TAG_AUDIO_SAMPLE_RATE, samplerate);
}
}
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