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Java library for extracting EXIF, IPTC, XMP, ICC and other metadata from image and video files.
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/*
* Copyright 2002-2019 Drew Noakes and contributors
*
* 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.imaging.riff;
import com.drew.imaging.FileType;
import com.drew.imaging.TypeChecker;
public class RiffTypeChecker implements TypeChecker
{
@Override
public int getByteCount()
{
return 12;
}
@Override
public FileType checkType(byte[] bytes)
{
String firstFour = new String(bytes, 0, 4);
if (!firstFour.equals("RIFF"))
return FileType.Unknown;
String fourCC = new String(bytes, 8, 4);
if (fourCC.equals("WAVE"))
return FileType.Wav;
if (fourCC.equals("AVI "))
return FileType.Avi;
if (fourCC.equals("WEBP"))
return FileType.WebP;
return FileType.Riff;
}
}