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Apache Commons Imaging (previously Sanselan) is a pure-Java image library.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.commons.imaging.formats.jpeg;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.commons.imaging.common.BinaryConstant;
import org.apache.commons.imaging.common.BinaryFunctions;
public final class JpegConstants {
public static final int MAX_SEGMENT_SIZE = 0xffff;
public static final BinaryConstant JFIF0_SIGNATURE = new BinaryConstant(
new byte[] { 0x4a, // J
0x46, // F
0x49, // I
0x46, // F
0x0, //
});
public static final BinaryConstant JFIF0_SIGNATURE_ALTERNATIVE = new BinaryConstant(
new byte[] { 0x4a, // J
0x46, // F
0x49, // I
0x46, // F
0x20, //
});
public static final BinaryConstant EXIF_IDENTIFIER_CODE = new BinaryConstant(
new byte[] { 0x45, // E
0x78, // x
0x69, // i
0x66, // f
});
public static final BinaryConstant XMP_IDENTIFIER = new BinaryConstant(
new byte[] { 0x68, // h
0x74, // t
0x74, // t
0x70, // p
0x3A, // :
0x2F, // /
0x2F, // /
0x6E, // n
0x73, // s
0x2E, // .
0x61, // a
0x64, // d
0x6F, // o
0x62, // b
0x65, // e
0x2E, // .
0x63, // c
0x6F, // o
0x6D, // m
0x2F, // /
0x78, // x
0x61, // a
0x70, // p
0x2F, // /
0x31, // 1
0x2E, // .
0x30, // 0
0x2F, // /
0, // 0-terminated us-ascii string.
});
public static final BinaryConstant SOI = new BinaryConstant(new byte[] {
(byte) 0xff, (byte) 0xd8 });
public static final BinaryConstant EOI = new BinaryConstant(new byte[] {
(byte) 0xff, (byte) 0xd9 });
public static final int JPEG_APP0 = 0xE0;
public static final int JPEG_APP0_MARKER = (0xff00) | (JPEG_APP0);
public static final int JPEG_APP1_MARKER = (0xff00) | (JPEG_APP0 + 1);
public static final int JPEG_APP2_MARKER = (0xff00) | (JPEG_APP0 + 2);
public static final int JPEG_APP13_MARKER = (0xff00) | (JPEG_APP0 + 13);
public static final int JPEG_APP14_MARKER = (0xff00) | (JPEG_APP0 + 14);
public static final int JPEG_APP15_MARKER = (0xff00) | (JPEG_APP0 + 15);
public static final int JFIF_MARKER = 0xFFE0;
public static final int SOF0_MARKER = 0xFFc0;
public static final int SOF1_MARKER = 0xFFc0 + 0x1;
public static final int SOF2_MARKER = 0xFFc0 + 0x2;
public static final int SOF3_MARKER = 0xFFc0 + 0x3;
public static final int DHT_MARKER = 0xFFc0 + 0x4;
public static final int SOF5_MARKER = 0xFFc0 + 0x5;
public static final int SOF6_MARKER = 0xFFc0 + 0x6;
public static final int SOF7_MARKER = 0xFFc0 + 0x7;
public static final int SOF8_MARKER = 0xFFc0 + 0x8;
public static final int SOF9_MARKER = 0xFFc0 + 0x9;
public static final int SOF10_MARKER = 0xFFc0 + 0xa;
public static final int SOF11_MARKER = 0xFFc0 + 0xb;
public static final int DAC_MARKER = 0xFFc0 + 0xc;
public static final int SOF13_MARKER = 0xFFc0 + 0xd;
public static final int SOF14_MARKER = 0xFFc0 + 0xe;
public static final int SOF15_MARKER = 0xFFc0 + 0xf;
// marker for restart intervals
public static final int DRI_MARKER = 0xFFdd;
public static final int RST0_MARKER = 0xFFd0;
public static final int RST1_MARKER = 0xFFd0 + 0x1;
public static final int RST2_MARKER = 0xFFd0 + 0x2;
public static final int RST3_MARKER = 0xFFd0 + 0x3;
public static final int RST4_MARKER = 0xFFd0 + 0x4;
public static final int RST5_MARKER = 0xFFd0 + 0x5;
public static final int RST6_MARKER = 0xFFd0 + 0x6;
public static final int RST7_MARKER = 0xFFd0 + 0x7;
public static final int EOI_MARKER = 0xFFd9;
public static final int SOS_MARKER = 0xFFda;
public static final int DQT_MARKER = 0xFFdb;
public static final int DNL_MARKER = 0xFFdc;
public static final int COM_MARKER = 0xFFfe;
public static final List MARKERS = Collections.unmodifiableList(Arrays.asList(
JPEG_APP0, JPEG_APP0_MARKER,
JPEG_APP1_MARKER, JPEG_APP2_MARKER, JPEG_APP13_MARKER,
JPEG_APP14_MARKER, JPEG_APP15_MARKER, JFIF_MARKER,
SOF0_MARKER, SOF1_MARKER, SOF2_MARKER, SOF3_MARKER, DHT_MARKER,
SOF5_MARKER, SOF6_MARKER, SOF7_MARKER, SOF8_MARKER, SOF9_MARKER,
SOF10_MARKER, SOF11_MARKER, DAC_MARKER, SOF13_MARKER,
SOF14_MARKER, SOF15_MARKER, EOI_MARKER, SOS_MARKER, DQT_MARKER,
DNL_MARKER, COM_MARKER, DRI_MARKER, RST0_MARKER, RST1_MARKER, RST2_MARKER,
RST3_MARKER, RST4_MARKER, RST5_MARKER, RST6_MARKER, RST7_MARKER ));
public static final BinaryConstant ICC_PROFILE_LABEL = new BinaryConstant(
new byte[] { 0x49, 0x43, 0x43, 0x5F, 0x50, 0x52, 0x4F, 0x46, 0x49,
0x4C, 0x45, 0x0 });
public static final BinaryConstant PHOTOSHOP_IDENTIFICATION_STRING = new BinaryConstant(
new byte[] { 0x50, // P
0x68, // h
0x6F, // o
0x74, // t
0x6F, // o
0x73, // s
0x68, // h
0x6F, // o
0x70, // p
0x20, //
0x33, // 3
0x2E, // .
0x30, // 0
0, });
public static final int CONST_8BIM = BinaryFunctions.charsToQuad('8', 'B', 'I', 'M');
private JpegConstants() {
}
}