/usr/include/poppler/goo/JpegWriter.h is in libpoppler-dev 0.18.4-1ubuntu3.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// JpegWriter.h
//
// This file is licensed under the GPLv2 or later
//
// Copyright (C) 2009 Stefan Thomas <thomas@eload24.com>
// Copyright (C) 2010 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2010 Jürg Billeter <j@bitron.ch>
// Copyright (C) 2010 Harry Roberts <harry.roberts@midnight-labs.org>
// Copyright (C) 2010 Brian Cameron <brian.cameron@oracle.com>
// Copyright (C) 2011 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2011 Thomas Freitag <Thomas.Freitag@alfa.de>
//
//========================================================================
#ifndef JPEGWRITER_H
#define JPEGWRITER_H
#include "poppler/poppler-config.h"
#ifdef ENABLE_LIBJPEG
#include <sys/types.h>
#include "ImgWriter.h"
extern "C" {
#include <jpeglib.h>
}
class JpegWriter : public ImgWriter
{
public:
JpegWriter(int quality, bool progressive, J_COLOR_SPACE colorMode = JCS_RGB);
JpegWriter(J_COLOR_SPACE colorMode = JCS_RGB);
~JpegWriter();
bool init(FILE *f, int width, int height, int hDPI, int vDPI);
bool writePointers(unsigned char **rowPointers, int rowCount);
bool writeRow(unsigned char **row);
bool close();
bool supportCMYK() { return colorMode == JCS_CMYK; }
private:
bool progressive;
int quality;
J_COLOR_SPACE colorMode;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
};
#endif
#endif
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