Use Java capitalization conventions
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java/TJExample.java
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91
java/TJExample.java
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/*
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* Copyright (C)2011 D. R. Commander. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the libjpeg-turbo Project nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* This program demonstrates how to compress and decompress JPEG files using
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* the TurboJPEG JNI wrapper
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*/
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import java.io.*;
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public class TJExample {
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public static final String classname=new TJExample().getClass().getName();
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public static void main(String argv[]) {
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try {
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if(argv.length<2) {
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System.out.println("USAGE: java "+classname+" <Input file> <Output file>");
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System.exit(1);
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}
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File file=new File(argv[0]);
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FileInputStream fis=new FileInputStream(file);
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int inputsize=fis.available();
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if(inputsize<1) {
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System.out.println("Input file contains no data");
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System.exit(1);
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}
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byte [] inputbuf=new byte[inputsize];
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fis.read(inputbuf);
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fis.close();
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TJDecompressor tjd=new TJDecompressor();
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TJHeaderInfo tji=tjd.decompressHeader(inputbuf, inputsize);
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System.out.print("Source Image: "+tji.width+" x "+tji.height+ " pixels, ");
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switch(tji.subsamp) {
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case TJ.SAMP444: System.out.println("4:4:4 subsampling"); break;
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case TJ.SAMP422: System.out.println("4:2:2 subsampling"); break;
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case TJ.SAMP420: System.out.println("4:2:0 subsampling"); break;
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case TJ.GRAYSCALE: System.out.println("Grayscale"); break;
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default: System.out.println("Unknown subsampling"); break;
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}
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byte [] tmpbuf=new byte[tji.width*tji.height*3];
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tjd.decompress(inputbuf, inputsize, tmpbuf, tji.width, tji.width*3,
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tji.height, 3, TJ.BOTTOMUP);
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tjd.close();
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TJCompressor tjc=new TJCompressor();
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byte [] outputbuf=new byte[(int)TJ.bufSize(tji.width, tji.height)];
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long outputsize=tjc.compress(tmpbuf, tji.width, tji.width*3, tji.height,
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3, outputbuf, tji.subsamp, 95, TJ.BOTTOMUP);
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tjc.close();
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file=new File(argv[1]);
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FileOutputStream fos=new FileOutputStream(file);
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fos.write(outputbuf, 0, (int)outputsize);
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fos.close();
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} catch(Exception e) {
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System.out.println(e);
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}
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}
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};
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