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#878: Now detects APP14/Adobe markers with full 2 byte version

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This commit is contained in:
Harald Kuhr 2023-12-16 17:57:49 +01:00
parent 2b5f897841
commit b91d02a562
2 changed files with 13 additions and 7 deletions
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8
imageio/imageio-jpeg/src/main/java/com/twelvemonkeys/imageio/plugins/jpeg/AdobeDCT.java
View File

@ -53,7 +53,7 @@ final class AdobeDCT extends Application {
final int transform;
private AdobeDCT(int version, int flags0, int flags1, int transform) {
super(JPEG.APP14, "Adobe", new byte[]{'A', 'd', 'o', 'b', 'e', 0, (byte) version, (byte) (flags0 >> 8), (byte) (flags0 & 0xff), (byte) (flags1 >> 8), (byte) (flags1 & 0xff), (byte) transform});
super(JPEG.APP14, "Adobe", new byte[]{'A', 'd', 'o', 'b', 'e', (byte) (version >> 8), (byte) (version & 0xff), (byte) (flags0 >> 8), (byte) (flags0 & 0xff), (byte) (flags1 >> 8), (byte) (flags1 & 0xff), (byte) transform});
this.version = version; // 100 or 101
this.flags0 = flags0;
@ -72,11 +72,11 @@ final class AdobeDCT extends Application {
public static AdobeDCT read(final DataInput data, final int length) throws IOException {
// TODO: Investigate http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6355567: 33/35 byte Adobe APP14 markers
data.skipBytes(6); // A, d, o, b, e, \0
data.skipBytes(5); // A, d, o, b, e
// version (byte), flags (4bytes), color transform (byte: 0=unknown, 1=YCC, 2=YCCK)
// version (2 bytes), flags (4bytes), color transform (byte: 0=unknown, 1=YCC, 2=YCCK)
return new AdobeDCT(
data.readUnsignedByte(),
data.readUnsignedShort(),
data.readUnsignedShort(),
data.readUnsignedShort(),
data.readUnsignedByte()

12
imageio/imageio-metadata/src/main/java/com/twelvemonkeys/imageio/metadata/jpeg/JPEGSegmentUtil.java
View File

@ -43,13 +43,17 @@ import com.twelvemonkeys.imageio.stream.ByteArrayImageInputStream;
import javax.imageio.IIOException;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageInputStream;
import java.awt.color.ICC_Profile;
import java.awt.color.*;
import java.io.ByteArrayOutputStream;
import java.io.EOFException;
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.twelvemonkeys.lang.Validate.notNull;
@ -144,8 +148,10 @@ public final class JPEGSegmentUtil {
}
static String asNullTerminatedAsciiString(final byte[] data, final int offset) {
// TODO: JPEG App segment identifiers are not always 0-terminated...
// Need to rewrite. For now, make sure we read only ASCII non-control chars.
for (int i = 0; i < data.length - offset; i++) {
if (data[offset + i] == 0 || i > 255) {
if (data[offset + i] < 20 || i > 255) {
return asAsciiString(data, offset, offset + i);
}
}