diff options
Diffstat (limited to 'src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java')
| -rw-r--r-- | src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java | 735 |
1 files changed, 0 insertions, 735 deletions
diff --git a/src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java b/src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java deleted file mode 100644 index 15f4c58..0000000 --- a/src/main/java/org/pdfbox/filter/CCITTFaxDecodeFilter.java +++ /dev/null @@ -1,735 +0,0 @@ -/**
- * Copyright (c) 2003-2005, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.filter;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-import org.apache.log4j.Logger;
-import org.pdfbox.cos.COSDictionary;
-import org.pdfbox.cos.COSName;
-
-/**
- * This is a filter for the CCITTFax Decoder.
- *
- * @author Ben Litchfield, Marcel Kammer, Paul King
- * @version $Revision: 1.10 $
- */
-public class CCITTFaxDecodeFilter implements Filter
-{
- private static Logger log = Logger.getLogger(CCITTFaxDecodeFilter.class);
-
- // Filter will write 15 TAG's
- // If you add or remove TAG's you will have to modify this value
- private static final int TAG_COUNT = 15;
-
- // HEADERLENGTH(fix 8 Bytes) plus ImageLength(variable)
- private int offset = 8;
-
- // Bytecounter for Bytes that will be written after the TAG-DICTIONARY
- private int tailingBytesCount = 0;
-
- // Bytes to write after TAG-DICTIONARY
- private final ByteArrayOutputStream tailer = new ByteArrayOutputStream();
-
- /**
- * Constructor.
- */
- public CCITTFaxDecodeFilter()
- {
- }
-
- /**
- * This will decode some compressed data.
- *
- * @param compressedData
- * The compressed byte stream.
- * @param result
- * The place to write the uncompressed byte stream.
- * @param options
- * The options to use to encode the data.
- *
- * @throws IOException
- * If there is an error decompressing the stream.
- */
- public void decode(InputStream compressedData, OutputStream result, COSDictionary options) throws IOException
- {
- // log.warn( "Warning: CCITTFaxDecode.decode is not implemented yet,
- // skipping this stream." );
-
-
- // Get ImageParams from PDF
- COSDictionary dict = (COSDictionary) options.getDictionaryObject("DecodeParms");
- int width = options.getInt("Width");
- int height = options.getInt("Height");
- int length = options.getInt(COSName.LENGTH);
- int compressionType = dict.getInt("K");
- boolean blackIs1 = dict.getBoolean("BlackIs1", false);
-
-
- // HEADER-INFO and starting point of TAG-DICTIONARY
- writeTagHeader(result, length);
-
- // IMAGE-DATA
- int i = 0;
- //int sum = 0;
- byte[] buffer = new byte[32768];
- int lentoread = length;
-
- while ((lentoread > 0) && ((i = compressedData.read(buffer, 0, Math.min(lentoread, 32768))) != -1))
- {
- //sum += i;
- result.write(buffer, 0, i);
- lentoread = lentoread - i;
- }
-
- // If lentoread is > 0 then we need to write out some padding to equal the header
- // We'll use what we have in the buffer it's just padding after all
- while (lentoread > 0)
- {
- result.write(buffer, 0, Math.min(lentoread, 32768));
- lentoread = lentoread - Math.min(lentoread, 32738);
- }
- //System.out.println("Gelesen: " + sum);
-
- // TAG-COUNT
- writeTagCount(result);
-
- // WIDTH 0x0100
- writeTagWidth(result, width);
-
- // HEIGHT 0x0101
- writeTagHeight(result, height);
-
- // BITSPERSAMPLE 0x0102
- // Always 1 for CCITTFax
- writeTagBitsPerSample(result, 1);
-
- // COMPRESSION 0x0103
- writeTagCompression(result, compressionType);
-
- // PHOTOMETRIC 0x0106
- writeTagPhotometric(result, blackIs1);
-
- // STRIPOFFSET 0x0111
- // HERE ALWAYS 8, because ImageData comes before TAG-DICTIONARY
- writeTagStripOffset(result, 8);
-
- // ORIENTATION 0x0112
- writeTagOrientation(result, 1);
-
- // SamplesPerPixel 0x0115
- writeTagSamplesPerPixel(result, 1);
-
- // RowsPerStrip 0x0116
- writeTagRowsPerStrip(result, height);
-
- // Stripcount 0x0117
- writeTagStripByteCount(result, length);
-
- // XRESOLUTION 0x011A
- // HERE: 200 DPI
- writeTagXRes(result, 200, 1);
-
- // YRESOLITION 0x011B
- // HERE: 200 DPI
- writeTagYRes(result, 200, 1);
-
- // ResolutionUnit 0x0128
- // HERE: DPI
- writeTagResolutionUnit(result, 2);
-
- // SOFTWARE 0x0131
- // minimum 4 chars
- writeTagSoftware(result, "pdfbox".getBytes());
-
- // DATE AND TIME 0x0132
- writeTagDateTime(result, new Date());
-
- // END OF TAG-DICT
- writeTagTailer(result);
- }
-
- private void writeTagHeader(OutputStream result, int length) throws IOException
- {
- byte[] header = { 'M', 'M', 0, '*' };// Big-endian
- result.write(header);
-
-
- // Add imagelength to offset
- offset += length;
-
- // OFFSET TAG-DICTIONARY
- int i1 = offset/16777216;//=value/(256*256*256)
- int i2 = (offset-i1*16777216)/65536;
- int i3 = (offset-i1*16777216-i2*65536)/256;
- int i4 = offset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
- }
-
- private void writeTagCount(OutputStream result) throws IOException
- {
- result.write(TAG_COUNT / 256);
- result.write(TAG_COUNT % 256);// tagCount
- }
-
- private void writeTagWidth(OutputStream result, int width) throws IOException
- {
- // @todo width berechnen
-
- // TAG-ID 100
- result.write(1);
- result.write(0);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE = width
- result.write(width/256);
- result.write(width%256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagHeight(OutputStream result, int height) throws IOException
- {
- //@todo height berechnen
- // TAG-ID 101
- result.write(1);
- result.write(1);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(height/256);
- result.write(height%256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagBitsPerSample(OutputStream result, int value) throws IOException
- {
- // TAG-ID 102
- result.write(1);
- result.write(2);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(value/256);
- result.write(value%256);
- result.write(0);//SHORT=0
- result.write(0);//SHORT=0
-
- }
-
- /**
- * Write the tag compression.
- *
- * @param result The stream to write to.
- * @param type The type to write.
- * @throws IOException If there is an error writing to the stream.
- */
- public void writeTagCompression(OutputStream result, int type) throws IOException
- {
- // TAG-ID 103
- result.write(1);
- result.write(3);
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LEGNTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- //@todo typ eintragen; hier immer 4
- result.write(0);
- if (type < 0)
- {
- result.write(4);// G4
- }
- else if (type == 0)
- {
- result.write(3);// G3-1D
- }
- else
- {
- result.write(2);// G3-2D
- }
- result.write(0);
- result.write(0);
-
- }
-
- private void writeTagPhotometric(OutputStream result, boolean blackIs1) throws IOException
- {
- // TAG-ID 106
- result.write(1);
- result.write(6);
-
-
- // TAG-TYPE SHORT
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(0);
- if (blackIs1)
- {
- result.write(1);
- }
- else
- {
- result.write(0);
- }
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagStripOffset(OutputStream result, int value) throws IOException
- {
- // TAG-ID 111
- result.write(1);
- result.write(17);
-
- // TAG-TYPE LONG=4
- result.write(0);
- result.write(4);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE = 8 //VOR TAG-DICTIONARY
- int i1 = value/16777216;//=value/(256*256*256)
- int i2 = (value-i1*16777216)/65536;
- int i3 = (value-i1*16777216-i2*65536)/256;
- int i4 = value % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- }
-
- private void writeTagSamplesPerPixel(OutputStream result, int value) throws IOException
- {
- // TAG-ID 115
- result.write(1);
- result.write(21);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(value / 256);
- result.write(value % 256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagRowsPerStrip(OutputStream result, int value) throws IOException
- {
- // TAG-ID 116
- result.write(1);
- result.write(22);
-
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE
- result.write(value / 256);
- result.write(value % 256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagStripByteCount(OutputStream result, int value) throws IOException
- {
- //@todo value auswerten
- // TAG-ID 117
- result.write(1);
- result.write(23);
-
- // TAG-TYPE LONG=4
- result.write(0);
- result.write(4);
-
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- int i1 = value/16777216;//=value/(256*256*256)
- int i2 = (value-i1*16777216)/65536;
- int i3 = (value-i1*16777216-i2*65536)/256;
- int i4 = value % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- }
-
- private void writeTagXRes(OutputStream result, int value1, int value2) throws IOException
- {
- // TAG-ID 11A
- result.write(1);
- result.write(26);
-
- // TAG-TYPE RATIONAL=5
- result.write(0);
- result.write(5);
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE=OFFSET TO RATIONAL
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- i1 = value1 /16777216;
- i2 = (value1-i1*16777216)/65536;
- i3 = (value1-i1*16777216 - i2*65536)/256;
- i4 = value1 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- i1 = value2 /16777216;
- i2 = (value2-i1*16777216)/65536;
- i3 = (value2-i1*16777216 - i2*65536)/256;
- i4 = value2 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- tailingBytesCount += 8;
- }
-
- private void writeTagYRes(OutputStream result, int value1, int value2) throws IOException
- {
- // TAG-ID 11B
- result.write(1);
- result.write(27);
-
-
- // TAG-TYPE RATIONAL=5
- result.write(0);
- result.write(5);
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
-
- // TAG-VALUE=OFFSET TO RATIONAL
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- i1 = value1 /16777216;
- i2 = (value1-i1*16777216)/65536;
- i3 = (value1-i1*16777216 - i2*65536)/256;
- i4 = value1 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- i1 = value2 /16777216;
- i2 = (value2-i1*16777216)/65536;
- i3 = (value2-i1*16777216 - i2*65536)/256;
- i4 = value2 % 256;
- tailer.write(i1);
- tailer.write(i2);
- tailer.write(i3);
- tailer.write(i4);
-
- tailingBytesCount += 8;
- }
-
- private void writeTagResolutionUnit(OutputStream result, int value) throws IOException
- {
- // TAG-ID 128
- result.write(1);
- result.write(40);
-
- // TAG-TYPE SHORT=3
- result.write(0);
- result.write(3);
-
- // TAG-LENGTH = 1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- result.write(value/256);
- result.write(value%256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagOrientation(OutputStream result, int value) throws IOException
- {
- // TAG-ID 112
- result.write(1);
- result.write(18);
-
- // TAG-TYPE SHORT = 3
- result.write(0);
- result.write(3);
-
-
- // TAG-LENGTH=1
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(1);
-
- // TAG-VALUE
- result.write(value / 256);
- result.write(value % 256);
- result.write(0);// SHORT=0
- result.write(0);// SHORT=0
-
- }
-
- private void writeTagTailer(OutputStream result) throws IOException
- {
- // END OF TAG-DICTIONARY
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(0);
-
- // TAILER WITH VALUES OF RATIONALFIELD's
- result.write(tailer.toByteArray());
- }
-
- private void writeTagSoftware(OutputStream result, byte[] text) throws IOException
- {
- // TAG-ID 131
- result.write(1);
- result.write(49);
-
- // TAG-TYPE ASCII=2
- result.write(0);
- result.write(2);
-
-
- // TAG-LENGTH=id.length+1
- result.write(0);
- result.write(0);
- result.write((text.length + 1) / 256);
- result.write((text.length + 1) % 256);
-
- // TAG-VALUE
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
-
- tailer.write(text);
- tailer.write(0);
- tailingBytesCount += text.length + 1;
- }
-
- private void writeTagDateTime(OutputStream result, Date date) throws IOException
- {
- // TAG-ID 132
- result.write(1);
- result.write(50);
-
-
- // TAG-TYPE ASCII=2
- result.write(0);
- result.write(2);
-
-
- // TAG-LENGTH=20
- result.write(0);
- result.write(0);
- result.write(0);
- result.write(20);
-
-
- // TAG-VALUE
- int valueOffset = offset + 6 + 12 * TAG_COUNT + tailer.size();
- int i1 = valueOffset/16777216;//=value/(256*256*256)
- int i2 = (valueOffset-i1*16777216)/65536;
- int i3 = (valueOffset-i1*16777216-i2*65536)/256;
- int i4 = valueOffset % 256;
- result.write(i1);
- result.write(i2);
- result.write(i3);
- result.write(i4);
-
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy:MM:dd HH:mm:ss");
- String datetime = sdf.format(date);
- tailer.write(datetime.getBytes());
- tailer.write(0);
-
- tailingBytesCount += 20;
- }
-
- /**
- * This will encode some data.
- *
- * @param rawData
- * The raw data to encode.
- * @param result
- * The place to write to encoded results to.
- * @param options
- * The options to use to encode the data.
- *
- * @throws IOException
- * If there is an error compressing the stream.
- */
- public void encode(InputStream rawData, OutputStream result, COSDictionary options) throws IOException
- {
- log.warn("Warning: CCITTFaxDecode.encode is not implemented yet, skipping this stream.");
- }
-}
\ No newline at end of file |