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Merging TIFF pages failed, if a page contained a sub IFD without a TIFF.TAG_COMPRESSION entry

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This commit is contained in:
Oliver Schmidtmer 2018-07-09 16:42:34 +02:00
parent 7cb1c6811a
commit 18800b6ee4
2 changed files with 34 additions and 5 deletions
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11
contrib/src/main/java/com/twelvemonkeys/contrib/tiff/TIFFUtilities.java
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@ -477,12 +477,13 @@ public final class TIFFUtilities {
} }
Entry compressionEntry = IFD.getEntryById(TIFF.TAG_COMPRESSION); Entry compressionEntry = IFD.getEntryById(TIFF.TAG_COMPRESSION);
Number compression = (Number) compressionEntry.getValue(); if(compressionEntry != null) {
if (compression.shortValue() == TIFFExtension.COMPRESSION_OLD_JPEG) { Number compression = (Number) compressionEntry.getValue();
newIFD.remove(compressionEntry); if (compression.shortValue() == TIFFExtension.COMPRESSION_OLD_JPEG) {
newIFD.add(new TIFFEntry(TIFF.TAG_COMPRESSION, TIFF.TYPE_SHORT, TIFFExtension.COMPRESSION_JPEG)); newIFD.remove(compressionEntry);
newIFD.add(new TIFFEntry(TIFF.TAG_COMPRESSION, TIFF.TYPE_SHORT, TIFFExtension.COMPRESSION_JPEG));
}
} }
return newIFD; return newIFD;
} }

28
contrib/src/test/java/com/twelvemonkeys/contrib/tiff/TIFFUtilitiesTest.java
View File

@ -233,6 +233,34 @@ public class TIFFUtilitiesTest {
} }
} }
@Test
public void testMergeWithSubIFD() throws IOException {
String testFile = "/tiff/cmyk_jpeg.tif";
File output = File.createTempFile("imageiotest", ".tif");
ImageOutputStream outputStream = ImageIO.createImageOutputStream(output);
InputStream inputStream1 = getClassLoaderResource(testFile).openStream();
ImageInputStream imageInput1 = ImageIO.createImageInputStream(inputStream1);
InputStream inputStream2 = getClassLoaderResource(testFile).openStream();
ImageInputStream imageInput2 = ImageIO.createImageInputStream(inputStream2);
ArrayList<TIFFUtilities.TIFFPage> pages = new ArrayList<>();
pages.addAll(TIFFUtilities.getPages(imageInput1));
pages.addAll(TIFFUtilities.getPages(imageInput2));
TIFFUtilities.writePages(outputStream, pages);
ImageInputStream testOutput = ImageIO.createImageInputStream(output);
ImageReader reader = ImageIO.getImageReaders(testOutput).next();
reader.setInput(testOutput);
int numImages = reader.getNumImages(true);
for (int i = 0; i < numImages; i++) {
reader.read(i);
}
imageInput1.close();
imageInput2.close();
outputStream.close();
}
protected URL getClassLoaderResource(final String pName) { protected URL getClassLoaderResource(final String pName) {
return getClass().getResource(pName); return getClass().getResource(pName);
} }