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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.Mp4HandlerFactory;
import java.io.IOException;
/**
* ISO/IED 14496-12:2015 pg.29
*/
public class MediaHeaderBox extends FullBox
{
long creationTime;
long modificationTime;
long timescale;
long duration;
String language;
public MediaHeaderBox(SequentialReader reader, Box box) throws IOException
{
super(reader, box);
if (version == 1) {
creationTime = reader.getInt64();
modificationTime = reader.getInt64();
timescale = reader.getInt32();
duration = reader.getInt64();
} else {
creationTime = reader.getUInt32();
modificationTime = reader.getUInt32();
timescale = reader.getUInt32();
duration = reader.getUInt32();
}
int languageBits = reader.getInt16();
language = new String(new char[]{(char)(((languageBits & 0x7C00) >> 10) + 0x60),
(char)(((languageBits & 0x03E0) >> 5) + 0x60),
(char)((languageBits & 0x001F) + 0x60)});
Mp4HandlerFactory.HANDLER_PARAM_CREATION_TIME = creationTime;
Mp4HandlerFactory.HANDLER_PARAM_MODIFICATION_TIME = modificationTime;
Mp4HandlerFactory.HANDLER_PARAM_TIME_SCALE = timescale;
Mp4HandlerFactory.HANDLER_PARAM_DURATION = duration;
Mp4HandlerFactory.HANDLER_PARAM_LANGUAGE = language;
}
}
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