Example usage for org.apache.commons.imaging.formats.jpeg JpegImageParser readSegments

Introduction

In this page you can find the example usage for org.apache.commons.imaging.formats.jpeg JpegImageParser readSegments.

Prototype

public List<Segment> readSegments(final ByteSource byteSource, final int markers[],
            final boolean returnAfterFirst) throws ImageReadException, IOException 

Source Link

Usage

From source file:org.gmdev.pdftrick.utils.CustomExtraImgReader.java

/**
 * Check if the images has Adobe byte marker and if is a YCCK type
 * @param imageByteArray// w ww. ja  v a2 s .com
 * @throws IOException
 * @throws ImageReadException
 */
private static void checkAdobeMarker(byte[] imageByteArray) throws IOException, ImageReadException {
    JpegImageParser parser = new JpegImageParser();
    ByteSource byteSource = new ByteSourceArray(imageByteArray);
    List<Segment> segments = parser.readSegments(byteSource, new int[] { 0xffee }, true);
    if (segments != null && segments.size() >= 1) {
        //UnknownSegment app14Segment = (UnknownSegment) segments.get(0);
        //App14Segment app14Segment = (App14Segment) segments.get(0);
        GenericSegment app14Segment = (GenericSegment) segments.get(0);
        byte[] data = app14Segment.getSegmentData();
        if (data.length >= 12 && data[0] == 'A' && data[1] == 'd' && data[2] == 'o' && data[3] == 'b'
                && data[4] == 'e') {
            hasAdobeMarker = true;
            byte[] data_2 = app14Segment.getSegmentData();
            int transform = data_2[11] & 0xff;
            if (transform == 2)
                colorType = COLOR_TYPE_YCCK;
        }
    }
}

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