[jira] [Created] (PDFBOX-2274) Decoding issue in PDImageXObject

["Dominic Tubach (JIRA)" <ji...@apache.org>]

Dominic Tubach created PDFBOX-2274:
--------------------------------------

             Summary: Decoding issue in PDImageXObject
                 Key: PDFBOX-2274
                 URL: https://issues.apache.org/jira/browse/PDFBOX-2274
             Project: PDFBox
          Issue Type: Bug
          Components: PDModel
    Affects Versions: 2.0.0
            Reporter: Dominic Tubach


I'm using JpegFactory to create an PDImageXObject from a content stream. There the constrcutor
{code}
PDImageXObject(PDDocument document, InputStream filteredStream, 
            COSBase cosFilter, int width, int height, int bitsPerComponent, 
            PDColorSpace initColorSpace)
{code}
is used.

I've found the following issue:
The method getUnfilteredStream() of the COSStream in the PDImageXObject returns an input stream containing a RandomAccessFileInputStream with
{{currentPosition = 50814}} and {{endPosition = 1440000}} and my following operation fails.

If the method doDecode() of the COSStream is called before the filter is set in the COSStream the input stream returned by getUnfilteredStream() contains a RandomAccessFileInputStream with {{currentPosition = 0}} and {{endPosition = 50814}} and the result is as expected.

I've achieved this by adding
{code}
getStream().getStream().getDecodeResult();
{code}
before
{code}
getCOSStream().setItem(COSName.FILTER, cosFilter);
{code}
in the PDImageXObject contructor.



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