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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.media.QuickTimeSubtitleDirectory;
import java.io.IOException;
/**
* https://developer.apple.com/library/content/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html#//apple_ref/doc/uid/TP40000939-CH205-SW80
*
* @author Payton Garland
*/
public class SubtitleSampleDescriptionAtom extends SampleDescriptionAtom<SubtitleSampleDescriptionAtom.SubtitleSampleDescription>
{
public SubtitleSampleDescriptionAtom(SequentialReader reader, Atom atom) throws IOException
{
super(reader, atom);
}
@Override
SubtitleSampleDescription getSampleDescription(SequentialReader reader) throws IOException
{
return null;
}
class SubtitleSampleDescription extends SampleDescription
{
int displayFlags;
long defaultTextBox;
int fontIdentifier;
int fontFace;
int fontSize;
int[] foregroundColor;
public SubtitleSampleDescription(SequentialReader reader) throws IOException
{
super(reader);
displayFlags = reader.getInt32();
reader.skip(1); // Reserved
reader.skip(1); // Reserved
reader.skip(4); // Reserved
defaultTextBox = reader.getInt64();
reader.skip(4); // Reserved
fontIdentifier = reader.getInt16();
fontFace = reader.getInt8();
fontSize = reader.getInt8();
foregroundColor = new int[]{reader.getUInt16(), reader.getUInt16(), reader.getUInt16()};
// font table atom 'ftab' not currently parsed
}
}
public void addMetadata(QuickTimeSubtitleDirectory directory)
{
SubtitleSampleDescription description = sampleDescriptions.get(0);
directory.setBoolean(QuickTimeSubtitleDirectory.TAG_VERTICAL_PLACEMENT, (description.displayFlags & 0x20000000) == 0x20000000);
directory.setBoolean(QuickTimeSubtitleDirectory.TAG_SOME_SAMPLES_FORCED, (description.displayFlags & 0x40000000) == 0x40000000);
directory.setBoolean(QuickTimeSubtitleDirectory.TAG_ALL_SAMPLES_FORCED, (description.displayFlags & 0xC0000000) == 0xC0000000);
directory.setLong(QuickTimeSubtitleDirectory.TAG_DEFAULT_TEXT_BOX, description.defaultTextBox);
directory.setInt(QuickTimeSubtitleDirectory.TAG_FONT_IDENTIFIER, description.fontIdentifier);
switch (description.fontFace) {
case (1):
directory.setString(QuickTimeSubtitleDirectory.TAG_FONT_FACE, "Bold");
break;
case (2):
directory.setString(QuickTimeSubtitleDirectory.TAG_FONT_FACE, "Italic");
break;
case (4):
directory.setString(QuickTimeSubtitleDirectory.TAG_FONT_FACE, "Underline");
break;
}
directory.setInt(QuickTimeSubtitleDirectory.TAG_FONT_SIZE, description.fontSize);
directory.setIntArray(QuickTimeSubtitleDirectory.TAG_FOREGROUND_COLOR, description.foregroundColor);
}
}
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