jpegjudge-0.0.2.orig/0000777000000000000000000000000007525676120013130 5ustar rootrootjpegjudge-0.0.2.orig/judge.c0000664000000000000000000000666506575762210014405 0ustar rootroot/* * judge.c * * judges the quality of jpeg files, output format similar to file(1) * * This uses code from the IJG JPEG library. The original copyright was: * * Copyright (C) 1994-1996, Thomas G. Lane. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README-jpeg6a * file. * * The estimate function and all the changes are copyright Marc Lehmann. * You can do anything with it *except* claim that you have written it. * */ #include "config.h" #include #include #include #include #include #include #include "estim.c" static int judge_quality (char *filename) { struct jpeg_decompress_struct cinfo; struct jpeg_error_mgr jerr; int scan_size; u8 *buffer, *scanline; FILE *input_file; JDIMENSION num_scanlines; estimate_stat stat; /* Initialize the JPEG decompression object with default error handling. */ cinfo.err = jpeg_std_error (&jerr); cinfo.err->trace_level = 0; jpeg_create_decompress (&cinfo); if (filename) { /* Open the input file. */ if ((input_file = fopen (filename, "rb")) == NULL) { perror (filename); return -1; } } else input_file = stdin; /* Specify data source for decompression */ jpeg_stdio_src (&cinfo, input_file); /* Read file header, set default decompression parameters */ (void) jpeg_read_header (&cinfo, TRUE); cinfo.dct_method = JDCT_ISLOW; cinfo.dither_mode = JDITHER_NONE; cinfo.do_fancy_upsampling = FALSE; cinfo.do_block_smoothing = FALSE; /* Start decompressor */ (void) jpeg_start_decompress (&cinfo); scan_size = cinfo.output_width * cinfo.output_components; scanline = buffer = (u8 *) malloc (scan_size * DCTSIZE); assert (buffer); // bad, bad... estimate_init (&stat); /* Process data */ while (cinfo.output_height > cinfo.output_scanline) { num_scanlines = jpeg_read_scanlines (&cinfo, &scanline, 1); assert (num_scanlines == 1); if ((unsigned) cinfo.output_scanline % DCTSIZE == 0) { scanline = buffer; process_blocks (&stat, buffer, cinfo.output_width, cinfo.output_components); } else scanline += scan_size; } free (buffer); (void) jpeg_finish_decompress (&cinfo); jpeg_destroy_decompress (&cinfo); /* Close files, if we opened them */ if (filename) fclose (input_file); /* All done. */ if (jerr.num_warnings) printf ("jpeg read error\n"); return estimate_quality (&stat); } static void usage (char *prog, int ec) { fprintf (stderr, "Usage: %s [ -vb ] file ...\n", prog); exit (ec); } int main (int argc, char **argv) { int display_filenames = 1; int retcode = 0; for (;;) { switch (getopt (argc, argv, "hvb")) { case 'h': usage (argv[0], 0); case 'v': printf ("%s version %s\n", PACKAGE, VERSION); exit (0); case 'b': display_filenames = 0; break; case '?': usage (argv[0], 2); default: goto noodle; } } noodle: if (optind == argc) usage (argv[0], 2); while (optind < argc) { int quality; char *filename = argv[optind]; quality = judge_quality (strcmp (filename, "-") ? filename : 0); if (quality<0) retcode = 1; else if (display_filenames) printf ("%s: %3d\n", filename, quality); else printf ("%3d\n", quality); optind++; } return retcode; } jpegjudge-0.0.2.orig/missing0000755000000000000000000001452007522316665014527 0ustar rootroot#! /bin/sh # Common stub for a few missing GNU programs while installing. # Copyright (C) 1996, 1997, 2001, 2002 Free Software Foundation, Inc. # Franc,ois Pinard , 1996. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. if test $# -eq 0; then echo 1>&2 "Try \`$0 --help' for more information" exit 1 fi # In the cases where this matters, `missing' is being run in the # srcdir already. if test -f configure.in; then configure_ac=configure.ac else configure_ac=configure.in fi case "$1" in -h|--h|--he|--hel|--help) echo "\ $0 [OPTION]... PROGRAM [ARGUMENT]... Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an error status if there is no known handling for PROGRAM. 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You can get \`Flex' from any GNU archive site." rm -f lex.yy.c if [ $# -ne 1 ]; then eval LASTARG="\${$#}" case "$LASTARG" in *.l) SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'` if [ -f "$SRCFILE" ]; then cp "$SRCFILE" lex.yy.c fi ;; esac fi if [ ! -f lex.yy.c ]; then echo 'main() { return 0; }' >lex.yy.c fi ;; makeinfo) echo 1>&2 "\ WARNING: \`$1' is missing on your system. You should only need it if you modified a \`.texi' or \`.texinfo' file, or any other file indirectly affecting the aspect of the manual. The spurious call might also be the consequence of using a buggy \`make' (AIX, DU, IRIX). You might want to install the \`Texinfo' package or the \`GNU make' package. Grab either from any GNU archive site." file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'` if test -z "$file"; then file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'` file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file` fi touch $file ;; *) echo 1>&2 "\ WARNING: \`$1' is needed, and you do not seem to have it handy on your system. You might have modified some files without having the proper tools for further handling them. Check the \`README' file, it often tells you about the needed prerequirements for installing this package. You may also peek at any GNU archive site, in case some other package would contain this missing \`$1' program." exit 1 ;; esac exit 0 jpegjudge-0.0.2.orig/judge.10000664000000000000000000000206206465740175014312 0ustar rootroot.TH JUDGE 1 "Judge - guess picture quality" .SH NAME .I judge \- guess jpeg picture quality .SH SYNOPSIS .B judge [ .B \-v ] .P .B judge [ .B \-b ] file ... .SH DESCRIPTION .I Judge reads each argument and attempts to guess the quality with which it was saved. Currently, only a rough indicator is calculcated, ranging from 0 (lowest quality) to 1000 (highest quality), an extension to other formats would be straightforward, but isn't planned. .PP It can read all pictures the .B IJG jpeg library can read, i.e. normal and progressive jpeg's. .SS OPTIONS .TP .B -v Display version number and exit. .TP .B -b Display only quality indicator, suppress other information (filenames). .SH BUGS It should be possible to judge pictures stored in non-lossy formats, too, since conversion to jpeg may influence the measurement. .PP The quality indicator is non-linear, and could be much better. .PP The algorithm to calculate the quality was made up in 10 minutes, after staring at various histograms. .SH ACKNOWLEDGEMENTS This program contains code from the .B IJG jpeg software. jpegjudge-0.0.2.orig/aclocal.m40000664000000000000000000001045407230107043014754 0ustar rootrootdnl aclocal.m4 generated automatically by aclocal 1.4 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A dnl PARTICULAR PURPOSE. # Do all the work for Automake. 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AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, <>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, <>; do case " <<$>>CONFIG_HEADERS " in *" <<$>>am_file "*<<)>> echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx ;; esac am_indx=`expr "<<$>>am_indx" + 1` done<<>>dnl>>) changequote([,]))]) jpegjudge-0.0.2.orig/AUTHORS0000664000000000000000000000025406465646334014205 0ustar rootroot judge was written by Marc Lehmann , using some files from the jpeg-6a distribution, written by Thomas G. Lane. See README-jpeg6a for addition information. jpegjudge-0.0.2.orig/configure.in0000664000000000000000000000050506575762411015442 0ustar rootrootAC_INIT(judge.c) AM_INIT_AUTOMAKE(judge,0.0.2) AM_CONFIG_HEADER(config.h) AC_PROG_CC #AC_PROG_CXX #AC_LANG_CPLUSPLUS AC_CHECK_LIB(jpeg,main) AC_CHECK_HEADERS(jpeglib.h) AC_CHECK_SIZEOF(int,4) AC_CHECK_SIZEOF(short int,2) AC_CHECK_SIZEOF(short, 2) AC_CHECK_SIZEOF(int, 4) AC_CHECK_SIZEOF(long, 4) AC_OUTPUT(Makefile) jpegjudge-0.0.2.orig/install-sh0000755000000000000000000001273607522316665015143 0ustar rootroot#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. It can only install one file at a time, a restriction # shared with many OS's install programs. # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" transformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: chmodcmd="" else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. IFS='%' set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` IFS="${oIFS}" pathcomp='' while [ $# -ne 0 ] ; do pathcomp="${pathcomp}${1}" shift if [ ! -d "${pathcomp}" ] ; then $mkdirprog "${pathcomp}" else true fi pathcomp="${pathcomp}/" done fi if [ x"$dir_arg" != x ] then $doit $instcmd $dst && if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi else # If we're going to rename the final executable, determine the name now. if [ x"$transformarg" = x ] then dstfile=`basename $dst` else dstfile=`basename $dst $transformbasename | sed $transformarg`$transformbasename fi # don't allow the sed command to completely eliminate the filename if [ x"$dstfile" = x ] then dstfile=`basename $dst` else true fi # Make a temp file name in the proper directory. dsttmp=$dstdir/#inst.$$# # Move or copy the file name to the temp name $doit $instcmd $src $dsttmp && trap "rm -f ${dsttmp}" 0 && # and set any options; do chmod last to preserve setuid bits # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 jpegjudge-0.0.2.orig/README0000664000000000000000000000051506467121522014002 0ustar rootroot See file INSTALL for installation instructions. See the manpage, judge.1 (or judge.txt), in this directory, for information on what this program does. Parts of this program use source from the IJG JPEG library, read README-jpeg6a for copyright details and more information. It also uses libjpeg, so you have to install it first. jpegjudge-0.0.2.orig/estim.c0000664000000000000000000003305106575757325014430 0ustar rootroot#include #include "estim.h" /*****************************************************************************/ /** dct routines **/ /*****************************************************************************/ /* * Heavily modified by Marc Lehmann * * Copyright (C) 1994-1996, Thomas G. Lane. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README-jpeg6a file. * * This include file contains common declarations for the forward and * inverse DCT modules. These declarations are private to the DCT managers * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms. * The individual DCT algorithms are kept in separate files to ease * machine-dependent tuning (e.g., assembly coding). */ /* * A forward DCT routine is given a pointer to a work area of type DCTELEM[]; * the DCT is to be performed in-place in that buffer. * The DCT inputs are expected to be signed (range +-CENTERJSAMPLE). * The DCT outputs are returned scaled up by a factor of 8; they therefore * have a range of +-8K for 8-bit data, +-128K for 12-bit data. This * convention improves accuracy in integer implementations and saves some * work in floating-point ones. */ typedef int DCTELEM; /* 16 or 32 bits is fine */ #define DCTSIZE 8 #define DCTLEN (DCTSIZE*DCTSIZE) #define CENTERJSAMPLE 128 #define DCTRANGE (8*8*CENTERJSAMPLE) /* * Macros for handling fixed-point arithmetic; these are used by many * but not all of the DCT/IDCT modules. * * All values are expected to be of type i32. * Fractional constants are scaled left by CONST_BITS bits. * CONST_BITS is defined within each module using these macros, * and may differ from one module to the next. */ #define ONE ((i32) 1) #define CONST_SCALE (ONE << CONST_BITS) /* Convert a positive real constant to an integer scaled by CONST_SCALE. * Caution: some C compilers fail to reduce "FIX(constant)" at compile time, * thus causing a lot of useless floating-point operations at run time. */ #define FIX(x) ((i32) ((x) * CONST_SCALE + 0.5)) /* Descale and correctly round an i32 value that's scaled by N bits. * We assume a right rounds towards minus infinity, so adding * the fudge factor is correct for either sign of X. */ #define DESCALE(x,n) (((x) + (ONE << ((n)-1))) >> n) /* Multiply an i32 variable by an i32 constant to yield an i32 result. * This macro is used only when the two inputs will actually be no more than * 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a * full 32x32 multiply. This provides a useful speedup on many machines. * Unfortunately there is no way to specify a 16x16->32 multiply portably * in C, but some C compilers will do the right thing if you provide the * correct combination of casts. */ #define MULTIPLY16C16(var,const) (((i16) (var)) * ((i16) (const))) /* Same except both inputs are variables. */ #define MULTIPLY16V16(var1,var2) (((i16) (var1)) * ((i16) (var2))) /* Multiply an i32 variable by an i32 constant to yield an i32 result. * For 8-bit samples with the recommended scaling, all the variable * and constant values involved are no more than 16 bits wide, so a * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. * For 12-bit samples, a full 32-bit multiplication will be needed. */ #define MULTIPLY(var,const) MULTIPLY16C16(var,const) /* * The divisors are all 8. */ /* * Perform forward DCT on one or more blocks of a component. * * The input samples are taken from the sample_data[] array starting at * position start_row/start_col, and moving to the right for any additional * blocks. The quantized coefficients are returned in coef_blocks[]. */ /* * This file contains a slow-but-accurate integer implementation of the * forward DCT (Discrete Cosine Transform). * * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT * on each column. Direct algorithms are also available, but they are * much more complex and seem not to be any faster when reduced to code. * * This implementation is based on an algorithm described in * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. * The primary algorithm described there uses 11 multiplies and 29 adds. * We use their alternate method with 12 multiplies and 32 adds. * The advantage of this method is that no data path contains more than one * multiplication; this allows a very simple and accurate implementation in * scaled fixed-point arithmetic, with a minimal number of shifts. */ /* * The poop on this scaling stuff is as follows: * * Each 1-D DCT step produces outputs which are a factor of sqrt(N) * larger than the true DCT outputs. The final outputs are therefore * a factor of N larger than desired; since N=8 this can be cured by * a simple right shift at the end of the algorithm. The advantage of * this arrangement is that we save two multiplications per 1-D DCT, * because the y0 and y4 outputs need not be divided by sqrt(N). * In the IJG code, this factor of 8 is removed by the quantization step * (in jcdctmgr.c), NOT in this module. * * We have to do addition and subtraction of the integer inputs, which * is no problem, and multiplication by fractional constants, which is * a problem to do in integer arithmetic. We multiply all the constants * by CONST_SCALE and convert them to integer constants (thus retaining * CONST_BITS bits of precision in the constants). After doing a * multiplication we have to divide the product by CONST_SCALE, with proper * rounding, to produce the correct output. This division can be done * cheaply as a right shift of CONST_BITS bits. We postpone shifting * as long as possible so that partial sums can be added together with * full fractional precision. * * The outputs of the first pass are scaled up by PASS1_BITS bits so that * they are represented to better-than-integral precision. These outputs * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word * with the recommended scaling. (For 12-bit sample data, the intermediate * array is i32 anyway.) * * To avoid overflow of the 32-bit intermediate results in pass 2, we must * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis * shows that the values given below are the most effective. */ #define CONST_BITS 13 #define PASS1_BITS 2 /* Some C compilers fail to reduce "FIX(constant)" at compile time, thus * causing a lot of useless floating-point operations at run time. * To get around this we use the following pre-calculated constants. * If you change CONST_BITS you may want to add appropriate values. * (With a reasonable C compiler, you can just rely on the FIX() macro...) */ #define FIX_0_298631336 FIX(0.298631336) #define FIX_0_390180644 FIX(0.390180644) #define FIX_0_541196100 FIX(0.541196100) #define FIX_0_765366865 FIX(0.765366865) #define FIX_0_899976223 FIX(0.899976223) #define FIX_1_175875602 FIX(1.175875602) #define FIX_1_501321110 FIX(1.501321110) #define FIX_1_847759065 FIX(1.847759065) #define FIX_1_961570560 FIX(1.961570560) #define FIX_2_053119869 FIX(2.053119869) #define FIX_2_562915447 FIX(2.562915447) #define FIX_3_072711026 FIX(3.072711026) /* * Perform the forward DCT on one block of samples. */ static void dct (DCTELEM *data) { i32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; i32 tmp10, tmp11, tmp12, tmp13; i32 z1, z2, z3, z4, z5; DCTELEM *dataptr; int ctr; /* Pass 1: process rows. */ /* Note results are scaled up by sqrt(8) compared to a true DCT; */ /* furthermore, we scale the results by 2**PASS1_BITS. */ dataptr = data; for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { tmp0 = dataptr[0] + dataptr[7]; tmp7 = dataptr[0] - dataptr[7]; tmp1 = dataptr[1] + dataptr[6]; tmp6 = dataptr[1] - dataptr[6]; tmp2 = dataptr[2] + dataptr[5]; tmp5 = dataptr[2] - dataptr[5]; tmp3 = dataptr[3] + dataptr[4]; tmp4 = dataptr[3] - dataptr[4]; /* Even part per LL&M figure 1 --- note that published figure is faulty; * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". */ tmp10 = tmp0 + tmp3; tmp13 = tmp0 - tmp3; tmp11 = tmp1 + tmp2; tmp12 = tmp1 - tmp2; dataptr[0] = (DCTELEM) ((tmp10 + tmp11) << PASS1_BITS); dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp13, FIX_0_765366865), CONST_BITS-PASS1_BITS); dataptr[6] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, - FIX_1_847759065), CONST_BITS-PASS1_BITS); /* Odd part per figure 8 --- note paper omits factor of sqrt(2). * cK represents cos(K*pi/16). * i0..i3 in the paper are tmp4..tmp7 here. */ z1 = tmp4 + tmp7; z2 = tmp5 + tmp6; z3 = tmp4 + tmp6; z4 = tmp5 + tmp7; z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */ tmp4 = MULTIPLY(tmp4, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ tmp5 = MULTIPLY(tmp5, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ tmp6 = MULTIPLY(tmp6, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ tmp7 = MULTIPLY(tmp7, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ z3 += z5; z4 += z5; dataptr[7] = (DCTELEM) DESCALE(tmp4 + z1 + z3, CONST_BITS-PASS1_BITS); dataptr[5] = (DCTELEM) DESCALE(tmp5 + z2 + z4, CONST_BITS-PASS1_BITS); dataptr[3] = (DCTELEM) DESCALE(tmp6 + z2 + z3, CONST_BITS-PASS1_BITS); dataptr[1] = (DCTELEM) DESCALE(tmp7 + z1 + z4, CONST_BITS-PASS1_BITS); dataptr += DCTSIZE; /* advance pointer to next row */ } /* Pass 2: process columns. * We remove the PASS1_BITS scaling, but leave the results scaled up * by an overall factor of 8. */ dataptr = data; for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; /* Even part per LL&M figure 1 --- note that published figure is faulty; * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". */ tmp10 = tmp0 + tmp3; tmp13 = tmp0 - tmp3; tmp11 = tmp1 + tmp2; tmp12 = tmp1 - tmp2; dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp11, PASS1_BITS); dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp10 - tmp11, PASS1_BITS); z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp13, FIX_0_765366865), CONST_BITS+PASS1_BITS); dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, - FIX_1_847759065), CONST_BITS+PASS1_BITS); /* Odd part per figure 8 --- note paper omits factor of sqrt(2). * cK represents cos(K*pi/16). * i0..i3 in the paper are tmp4..tmp7 here. */ z1 = tmp4 + tmp7; z2 = tmp5 + tmp6; z3 = tmp4 + tmp6; z4 = tmp5 + tmp7; z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */ tmp4 = MULTIPLY(tmp4, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ tmp5 = MULTIPLY(tmp5, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ tmp6 = MULTIPLY(tmp6, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ tmp7 = MULTIPLY(tmp7, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ z3 += z5; z4 += z5; dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp4 + z1 + z3, CONST_BITS+PASS1_BITS); dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp5 + z2 + z4, CONST_BITS+PASS1_BITS); dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp6 + z2 + z3, CONST_BITS+PASS1_BITS); dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp7 + z1 + z4, CONST_BITS+PASS1_BITS); dataptr++; /* advance pointer to next column */ } } /*****************************************************************************/ /** estimate functions **/ /*****************************************************************************/ void estimate_init (estimate_stat *s) { s->pixels = s->histogram = 0; } void process_blocks (estimate_stat *s, u8 *data, int width, int channels) { DCTELEM block[DCTLEN]; int color = channels; int xoff = (((unsigned) width) / DCTSIZE - 1) * DCTSIZE; while (color) { color--; while (xoff >= 0) { int x, y; DCTELEM *p = block; for (x = DCTSIZE - 1; x >= 0; x--) for (y = DCTSIZE - 1; y >= 0; y--) *p++ = data[(x + xoff + y * width) * channels] - CENTERJSAMPLE; dct (block); p = block + DCTLEN; while (p-- > block) if (*p >= -2 && *p <= 2) s->histogram++; s->pixels += DCTLEN; xoff -= DCTSIZE; } } } int estimate_quality (estimate_stat *s) { while (s->histogram > ULONG_MAX/1000) { s->pixels >>= 1; s->histogram >>= 1; } return 1000 - s->histogram * 1000 / s->pixels; } jpegjudge-0.0.2.orig/NEWS0000664000000000000000000000030007230107031013575 0ustar rootroot 0.0.0 Sat Feb 6 15:55:23 CET 1998 initial revision. does not always give wrong results ;) 0.0.1 Sat Feb 7 18:55:14 CET 1998 added -b, -v switches, manpage 0.0.2 Code cleanup jpegjudge-0.0.2.orig/acconfig.h0000664000000000000000000000004106465645010015037 0ustar rootroot #undef PACKAGE #undef VERSION jpegjudge-0.0.2.orig/README-jpeg6a0000664000000000000000000004664106465630701015170 0ustar rootrootThe Independent JPEG Group's JPEG software ========================================== README for release 6a of 7-Feb-96 ================================= This distribution contains the sixth public release of the Independent JPEG Group's free JPEG software. You are welcome to redistribute this software and to use it for any purpose, subject to the conditions under LEGAL ISSUES, below. Serious users of this software (particularly those incorporating it into larger programs) should contact IJG at jpeg-info@uunet.uu.net to be added to our electronic mailing list. Mailing list members are notified of updates and have a chance to participate in technical discussions, etc. This software is the work of Tom Lane, Philip Gladstone, Luis Ortiz, Jim Boucher, Lee Crocker, Julian Minguillon, George Phillips, Davide Rossi, Ge' Weijers, and other members of the Independent JPEG Group. IJG is not affiliated with the official ISO JPEG standards committee. DOCUMENTATION ROADMAP ===================== This file contains the following sections: OVERVIEW General description of JPEG and the IJG software. LEGAL ISSUES Copyright, lack of warranty, terms of distribution. REFERENCES Where to learn more about JPEG. ARCHIVE LOCATIONS Where to find newer versions of this software. RELATED SOFTWARE Other stuff you should get. FILE FORMAT WARS Software *not* to get. TO DO Plans for future IJG releases. Other documentation files in the distribution are: User documentation: install.doc How to configure and install the IJG software. usage.doc Usage instructions for cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom. *.1 Unix-style man pages for programs (same info as usage.doc). wizard.doc Advanced usage instructions for JPEG wizards only. change.log Version-to-version change highlights. Programmer and internal documentation: libjpeg.doc How to use the JPEG library in your own programs. example.c Sample code for calling the JPEG library. structure.doc Overview of the JPEG library's internal structure. filelist.doc Road map of IJG files. coderules.doc Coding style rules --- please read if you contribute code. Please read at least the files install.doc and usage.doc. Useful information can also be found in the JPEG FAQ (Frequently Asked Questions) article. See ARCHIVE LOCATIONS below to find out where to obtain the FAQ article. If you want to understand how the JPEG code works, we suggest reading one or more of the REFERENCES, then looking at the documentation files (in roughly the order listed) before diving into the code. OVERVIEW ======== This package contains C software to implement JPEG image compression and decompression. JPEG (pronounced "jay-peg") is a standardized compression method for full-color and gray-scale images. JPEG is intended for compressing "real-world" scenes; line drawings, cartoons and other non-realistic images are not its strong suit. JPEG is lossy, meaning that the output image is not exactly identical to the input image. Hence you must not use JPEG if you have to have identical output bits. However, on typical photographic images, very good compression levels can be obtained with no visible change, and remarkably high compression levels are possible if you can tolerate a low-quality image. For more details, see the references, or just experiment with various compression settings. This software implements JPEG baseline, extended-sequential, and progressive compression processes. Provision is made for supporting all variants of these processes, although some uncommon parameter settings aren't implemented yet. For legal reasons, we are not distributing code for the arithmetic-coding variants of JPEG; see LEGAL ISSUES. We have made no provision for supporting the hierarchical or lossless processes defined in the standard. We provide a set of library routines for reading and writing JPEG image files, plus two sample applications "cjpeg" and "djpeg", which use the library to perform conversion between JPEG and some other popular image file formats. The library is intended to be reused in other applications. In order to support file conversion and viewing software, we have included considerable functionality beyond the bare JPEG coding/decoding capability; for example, the color quantization modules are not strictly part of JPEG decoding, but they are essential for output to colormapped file formats or colormapped displays. These extra functions can be compiled out of the library if not required for a particular application. We have also included "jpegtran", a utility for lossless transcoding between different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple applications for inserting and extracting textual comments in JFIF files. The emphasis in designing this software has been on achieving portability and flexibility, while also making it fast enough to be useful. In particular, the software is not intended to be read as a tutorial on JPEG. (See the REFERENCES section for introductory material.) Rather, it is intended to be reliable, portable, industrial-strength code. We do not claim to have achieved that goal in every aspect of the software, but we strive for it. We welcome the use of this software as a component of commercial products. No royalty is required, but we do ask for an acknowledgement in product documentation, as described under LEGAL ISSUES. LEGAL ISSUES ============ In plain English: 1. We don't promise that this software works. (But if you find any bugs, please let us know!) 2. You can use this software for whatever you want. You don't have to pay us. 3. You may not pretend that you wrote this software. If you use it in a program, you must acknowledge somewhere in your documentation that you've used the IJG code. In legalese: The authors make NO WARRANTY or representation, either express or implied, with respect to this software, its quality, accuracy, merchantability, or fitness for a particular purpose. This software is provided "AS IS", and you, its user, assume the entire risk as to its quality and accuracy. This software is copyright (C) 1991-1996, Thomas G. Lane. All Rights Reserved except as specified below. Permission is hereby granted to use, copy, modify, and distribute this software (or portions thereof) for any purpose, without fee, subject to these conditions: (1) If any part of the source code for this software is distributed, then this README file must be included, with this copyright and no-warranty notice unaltered; and any additions, deletions, or changes to the original files must be clearly indicated in accompanying documentation. (2) If only executable code is distributed, then the accompanying documentation must state that "this software is based in part on the work of the Independent JPEG Group". (3) Permission for use of this software is granted only if the user accepts full responsibility for any undesirable consequences; the authors accept NO LIABILITY for damages of any kind. These conditions apply to any software derived from or based on the IJG code, not just to the unmodified library. If you use our work, you ought to acknowledge us. Permission is NOT granted for the use of any IJG author's name or company name in advertising or publicity relating to this software or products derived from it. This software may be referred to only as "the Independent JPEG Group's software". We specifically permit and encourage the use of this software as the basis of commercial products, provided that all warranty or liability claims are assumed by the product vendor. ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA. ansi2knr.c is NOT covered by the above copyright and conditions, but instead by the usual distribution terms of the Free Software Foundation; principally, that you must include source code if you redistribute it. (See the file ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part of any program generated from the IJG code, this does not limit you more than the foregoing paragraphs do. The configuration script "configure" was produced with GNU Autoconf. It is copyright by the Free Software Foundation but is freely distributable. It appears that the arithmetic coding option of the JPEG spec is covered by patents owned by IBM, AT&T, and Mitsubishi. Hence arithmetic coding cannot legally be used without obtaining one or more licenses. For this reason, support for arithmetic coding has been removed from the free JPEG software. (Since arithmetic coding provides only a marginal gain over the unpatented Huffman mode, it is unlikely that very many implementations will support it.) So far as we are aware, there are no patent restrictions on the remaining code. WARNING: Unisys has begun to enforce their patent on LZW compression against GIF encoders and decoders. You will need a license from Unisys to use the included rdgif.c or wrgif.c files in a commercial or shareware application. At this time, Unisys is not enforcing their patent against freeware, so distribution of this package remains legal. However, we intend to remove GIF support from the IJG package as soon as a suitable replacement format becomes reasonably popular. We are required to state that "The Graphics Interchange Format(c) is the Copyright property of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated." REFERENCES ========== We highly recommend reading one or more of these references before trying to understand the innards of the JPEG software. The best short technical introduction to the JPEG compression algorithm is Wallace, Gregory K. "The JPEG Still Picture Compression Standard", Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. (Adjacent articles in that issue discuss MPEG motion picture compression, applications of JPEG, and related topics.) If you don't have the CACM issue handy, a PostScript file containing a revised version of Wallace's article is available at ftp.uu.net, graphics/jpeg/wallace.ps.gz. The file (actually a preprint for an article that appeared in IEEE Trans. Consumer Electronics) omits the sample images that appeared in CACM, but it includes corrections and some added material. Note: the Wallace article is copyright ACM and IEEE, and it may not be used for commercial purposes. A somewhat less technical, more leisurely introduction to JPEG can be found in "The Data Compression Book" by Mark Nelson, published by M&T Books (Redwood City, CA), 1991, ISBN 1-55851-216-0. This book provides good explanations and example C code for a multitude of compression methods including JPEG. It is an excellent source if you are comfortable reading C code but don't know much about data compression in general. The book's JPEG sample code is far from industrial-strength, but when you are ready to look at a full implementation, you've got one here... The best full description of JPEG is the textbook "JPEG Still Image Data Compression Standard" by William B. Pennebaker and Joan L. Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1. Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG standards (DIS 10918-1 and draft DIS 10918-2). This is by far the most complete exposition of JPEG in existence, and we highly recommend it. The JPEG standard itself is not available electronically; you must order a paper copy through ISO or ITU. (Unless you feel a need to own a certified official copy, we recommend buying the Pennebaker and Mitchell book instead; it's much cheaper and includes a great deal of useful explanatory material.) In the USA, copies of the standard may be ordered from ANSI Sales at (212) 642-4900, or from Global Engineering Documents at (800) 854-7179. (ANSI doesn't take credit card orders, but Global does.) It's not cheap: as of 1992, ANSI was charging $95 for Part 1 and $47 for Part 2, plus 7% shipping/handling. The standard is divided into two parts, Part 1 being the actual specification, while Part 2 covers compliance testing methods. Part 1 is titled "Digital Compression and Coding of Continuous-tone Still Images, Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS 10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of Continuous-tone Still Images, Part 2: Compliance testing" and has document numbers ISO/IEC IS 10918-2, ITU-T T.83. Extensions to the original JPEG standard are defined in JPEG Part 3, a new ISO document. Part 3 is undergoing ISO balloting and is expected to be approved by the end of 1995; it will have document numbers ISO/IEC IS 10918-3, ITU-T T.84. IJG currently does not support any Part 3 extensions. The JPEG standard does not specify all details of an interchangeable file format. For the omitted details we follow the "JFIF" conventions, revision 1.02. A copy of the JFIF spec is available from: Literature Department C-Cube Microsystems, Inc. 1778 McCarthy Blvd. Milpitas, CA 95035 phone (408) 944-6300, fax (408) 944-6314 A PostScript version of this document is available at ftp.uu.net, file graphics/jpeg/jfif.ps.gz. It can also be obtained by e-mail from the C-Cube mail server, netlib@c3.pla.ca.us. Send the message "send jfif_ps from jpeg" to the server to obtain the JFIF document; send the message "help" if you have trouble. The TIFF 6.0 file format specification can be obtained by FTP from sgi.com (192.48.153.1), file graphics/tiff/TIFF6.ps.Z; or you can order a printed copy from Aldus Corp. at (206) 628-6593. The JPEG incorporation scheme found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems. IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6). Instead, we recommend the JPEG design proposed by TIFF Technical Note #2 (Compression tag 7). Copies of this Note can be obtained from sgi.com or from ftp.uu.net:/graphics/jpeg/. It is expected that the next revision of the TIFF spec will replace the 6.0 JPEG design with the Note's design. Although IJG's own code does not support TIFF/JPEG, the free libtiff library uses our library to implement TIFF/JPEG per the Note. libtiff is available from sgi.com:/graphics/tiff/. ARCHIVE LOCATIONS ================= The "official" archive site for this software is ftp.uu.net (Internet address 192.48.96.9). The most recent released version can always be found there in directory graphics/jpeg. This particular version will be archived as graphics/jpeg/jpegsrc.v6a.tar.gz. If you are on the Internet, you can retrieve files from ftp.uu.net by standard anonymous FTP. If you don't have FTP access, UUNET's archives are also available via UUCP; contact help@uunet.uu.net for information on retrieving files that way. Numerous Internet sites maintain copies of the UUNET files. However, only ftp.uu.net is guaranteed to have the latest official version. You can also obtain this software in DOS-compatible "zip" archive format from the SimTel archives (ftp.coast.net:/SimTel/msdos/graphics/), or on CompuServe in the Graphics Support forum (GO CIS:GRAPHSUP), library 12 "JPEG Tools". Again, these versions may sometimes lag behind the ftp.uu.net release. The JPEG FAQ (Frequently Asked Questions) article is a useful source of general information about JPEG. It is updated constantly and therefore is not included in this distribution. The FAQ is posted every two weeks to Usenet newsgroups comp.graphics.misc, news.answers, and other groups. You can always obtain the latest version from the news.answers archive at rtfm.mit.edu. By FTP, fetch /pub/usenet/news.answers/jpeg-faq/part1 and .../part2. If you don't have FTP, send e-mail to mail-server@rtfm.mit.edu with body send usenet/news.answers/jpeg-faq/part1 send usenet/news.answers/jpeg-faq/part2 RELATED SOFTWARE ================ Numerous viewing and image manipulation programs now support JPEG. (Quite a few of them use this library to do so.) The JPEG FAQ described above lists some of the more popular free and shareware viewers, and tells where to obtain them on Internet. If you are on a Unix machine, we highly recommend Jef Poskanzer's free PBMPLUS image software, which provides many useful operations on PPM-format image files. In particular, it can convert PPM images to and from a wide range of other formats. You can obtain this package by FTP from ftp.x.org (contrib/pbmplus*.tar.Z) or ftp.ee.lbl.gov (pbmplus*.tar.Z). There is also a newer update of this package called NETPBM, available from wuarchive.wustl.edu under directory /graphics/graphics/packages/NetPBM/. Unfortunately PBMPLUS/NETPBM is not nearly as portable as the IJG software is; you are likely to have difficulty making it work on any non-Unix machine. A different free JPEG implementation, written by the PVRG group at Stanford, is available from havefun.stanford.edu in directory pub/jpeg. This program is designed for research and experimentation rather than production use; it is slower, harder to use, and less portable than the IJG code, but it is easier to read and modify. Also, the PVRG code supports lossless JPEG, which we do not. FILE FORMAT WARS ================ Some JPEG programs produce files that are not compatible with our library. The root of the problem is that the ISO JPEG committee failed to specify a concrete file format. Some vendors "filled in the blanks" on their own, creating proprietary formats that no one else could read. (For example, none of the early commercial JPEG implementations for the Macintosh were able to exchange compressed files.) The file format we have adopted is called JFIF (see REFERENCES). This format has been agreed to by a number of major commercial JPEG vendors, and it has become the de facto standard. JFIF is a minimal or "low end" representation. We recommend the use of TIFF/JPEG (TIFF revision 6.0 as modified by TIFF Technical Note #2) for "high end" applications that need to record a lot of additional data about an image. TIFF/JPEG is fairly new and not yet widely supported, unfortunately. The upcoming JPEG Part 3 standard defines a file format called SPIFF. SPIFF is interoperable with JFIF, in the sense that most JFIF decoders should be able to read the most common variant of SPIFF. SPIFF has some technical advantages over JFIF, but its major claim to fame is simply that it is an official standard rather than an informal one. At this point it is unclear whether SPIFF will supersede JFIF or whether JFIF will remain the de-facto standard. IJG intends to support SPIFF once the standard is frozen, but we have not decided whether it should become our default output format or not. (In any case, our decoder will remain capable of reading JFIF indefinitely.) Various proprietary file formats incorporating JPEG compression also exist. We have little or no sympathy for the existence of these formats. Indeed, one of the original reasons for developing this free software was to help force convergence on common, open format standards for JPEG files. Don't use a proprietary file format! TO DO ===== In future versions, we are considering supporting some of the upcoming JPEG Part 3 extensions --- principally, variable quantization and the SPIFF file format. Tuning the software for better behavior at low quality/high compression settings is also of interest. The current method for scaling the quantization tables is known not to be very good at low Q values. As always, speeding things up is high on our priority list. 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then echo $ac_n "(cached) $ac_c" 1>&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" ac_prog_rejected=no ac_dummy="$PATH" for ac_dir in $ac_dummy; do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" break fi done IFS="$ac_save_ifs" if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# -gt 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift set dummy "$ac_dir/$ac_word" "$@" shift ac_cv_prog_CC="$@" fi fi fi fi CC="$ac_cv_prog_CC" if test -n "$CC"; then echo "$ac_t""$CC" 1>&6 else echo "$ac_t""no" 1>&6 fi if test -z "$CC"; then case "`uname -s`" in *win32* | *WIN32*) # Extract the first word of "cl", so it can be a program name with args. set dummy cl; ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 echo "configure:866: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" ac_dummy="$PATH" for ac_dir in $ac_dummy; do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then ac_cv_prog_CC="cl" break fi done IFS="$ac_save_ifs" fi fi CC="$ac_cv_prog_CC" if test -n "$CC"; then echo "$ac_t""$CC" 1>&6 else echo "$ac_t""no" 1>&6 fi ;; esac fi test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; } fi echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6 echo "configure:898: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5 ac_ext=c # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options. ac_cpp='$CPP $CPPFLAGS' ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5' ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5' cross_compiling=$ac_cv_prog_cc_cross cat > conftest.$ac_ext << EOF #line 909 "configure" #include "confdefs.h" main(){return(0);} EOF if { (eval echo configure:914: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then ac_cv_prog_cc_works=yes # If we can't run a trivial program, we are probably using a cross compiler. if (./conftest; exit) 2>/dev/null; then ac_cv_prog_cc_cross=no else ac_cv_prog_cc_cross=yes fi else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_prog_cc_works=no fi rm -fr conftest* ac_ext=c # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options. ac_cpp='$CPP $CPPFLAGS' ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5' ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5' cross_compiling=$ac_cv_prog_cc_cross echo "$ac_t""$ac_cv_prog_cc_works" 1>&6 if test $ac_cv_prog_cc_works = no; then { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; } fi echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6 echo "configure:940: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6 cross_compiling=$ac_cv_prog_cc_cross echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6 echo "configure:945: checking whether we are using GNU C" >&5 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.c <&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then ac_cv_prog_gcc=yes else ac_cv_prog_gcc=no fi fi echo "$ac_t""$ac_cv_prog_gcc" 1>&6 if test $ac_cv_prog_gcc = yes; then GCC=yes else GCC= fi ac_test_CFLAGS="${CFLAGS+set}" ac_save_CFLAGS="$CFLAGS" CFLAGS= echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6 echo "configure:973: checking whether ${CC-cc} accepts -g" >&5 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else echo 'void f(){}' > conftest.c if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then ac_cv_prog_cc_g=yes else ac_cv_prog_cc_g=no fi rm -f conftest* fi echo "$ac_t""$ac_cv_prog_cc_g" 1>&6 if test "$ac_test_CFLAGS" = set; then CFLAGS="$ac_save_CFLAGS" elif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fi else if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fi fi #AC_PROG_CXX #AC_LANG_CPLUSPLUS echo $ac_n "checking for main in -ljpeg""... $ac_c" 1>&6 echo "configure:1009: checking for main in -ljpeg" >&5 ac_lib_var=`echo jpeg'_'main | sed 'y%./+-%__p_%'` if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else ac_save_LIBS="$LIBS" LIBS="-ljpeg $LIBS" cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then rm -rf conftest* eval "ac_cv_lib_$ac_lib_var=yes" else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* eval "ac_cv_lib_$ac_lib_var=no" fi rm -f conftest* LIBS="$ac_save_LIBS" fi if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then echo "$ac_t""yes" 1>&6 ac_tr_lib=HAVE_LIB`echo jpeg | sed -e 's/[^a-zA-Z0-9_]/_/g' \ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'` cat >> confdefs.h <&6 fi echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6 echo "configure:1052: checking how to run the C preprocessor" >&5 # On Suns, sometimes $CPP names a directory. if test -n "$CPP" && test -d "$CPP"; then CPP= fi if test -z "$CPP"; then if eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else # This must be in double quotes, not single quotes, because CPP may get # substituted into the Makefile and "${CC-cc}" will confuse make. CPP="${CC-cc} -E" # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. cat > conftest.$ac_ext < Syntax Error EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" { (eval echo configure:1073: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then : else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* CPP="${CC-cc} -E -traditional-cpp" cat > conftest.$ac_ext < Syntax Error EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" { (eval echo configure:1090: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then : else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* CPP="${CC-cc} -nologo -E" cat > conftest.$ac_ext < Syntax Error EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" { (eval echo configure:1107: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then : else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* CPP=/lib/cpp fi rm -f conftest* fi rm -f conftest* fi rm -f conftest* ac_cv_prog_CPP="$CPP" fi CPP="$ac_cv_prog_CPP" else ac_cv_prog_CPP="$CPP" fi echo "$ac_t""$CPP" 1>&6 for ac_hdr in jpeglib.h do ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'` echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6 echo "configure:1135: checking for $ac_hdr" >&5 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.$ac_ext < EOF ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" { (eval echo configure:1145: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"` if test -z "$ac_err"; then rm -rf conftest* eval "ac_cv_header_$ac_safe=yes" else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* eval "ac_cv_header_$ac_safe=no" fi rm -f conftest* fi if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then echo "$ac_t""yes" 1>&6 ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'` cat >> confdefs.h <&6 fi done echo $ac_n "checking size of int""... $ac_c" 1>&6 echo "configure:1172: checking size of int" >&5 if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else if test "$cross_compiling" = yes; then ac_cv_sizeof_int=4 else cat > conftest.$ac_ext < main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", sizeof(int)); exit(0); } EOF if { (eval echo configure:1191: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null then ac_cv_sizeof_int=`cat conftestval` else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -fr conftest* ac_cv_sizeof_int=0 fi rm -fr conftest* fi fi echo "$ac_t""$ac_cv_sizeof_int" 1>&6 cat >> confdefs.h <&6 echo "configure:1211: checking size of short int" >&5 if eval "test \"`echo '$''{'ac_cv_sizeof_short_int'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else if test "$cross_compiling" = yes; then ac_cv_sizeof_short_int=2 else cat > conftest.$ac_ext < main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", sizeof(short int)); exit(0); } EOF if { (eval echo configure:1230: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null then ac_cv_sizeof_short_int=`cat conftestval` else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -fr conftest* ac_cv_sizeof_short_int=0 fi rm -fr conftest* fi fi echo "$ac_t""$ac_cv_sizeof_short_int" 1>&6 cat >> confdefs.h <&6 echo "configure:1251: checking size of short" >&5 if eval "test \"`echo '$''{'ac_cv_sizeof_short'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else if test "$cross_compiling" = yes; then ac_cv_sizeof_short=2 else cat > conftest.$ac_ext < main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", sizeof(short)); exit(0); } EOF if { (eval echo configure:1270: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null then ac_cv_sizeof_short=`cat conftestval` else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -fr conftest* ac_cv_sizeof_short=0 fi rm -fr conftest* fi fi echo "$ac_t""$ac_cv_sizeof_short" 1>&6 cat >> confdefs.h <&6 echo "configure:1290: checking size of int" >&5 if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else if test "$cross_compiling" = yes; then ac_cv_sizeof_int=4 else cat > conftest.$ac_ext < main() { FILE *f=fopen("conftestval", "w"); if (!f) exit(1); fprintf(f, "%d\n", sizeof(int)); exit(0); } EOF if { (eval echo configure:1309: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null then ac_cv_sizeof_int=`cat conftestval` else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -fr conftest* ac_cv_sizeof_int=0 fi rm -fr conftest* fi fi echo "$ac_t""$ac_cv_sizeof_int" 1>&6 cat >> confdefs.h <&6 echo "configure:1329: checking size of long" >&5 if eval "test \"`echo '$''{'ac_cv_sizeof_long'+set}'`\" = set"; 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Don't ask copy-www: judge.txt all dist # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: jpegjudge-0.0.2.orig/judge.txt0000664000000000000000000000277206467121635014775 0ustar rootroot JUDGE(1) JUDGE(1) NNAAMMEE _j_u_d_g_e - guess jpeg picture quality SSYYNNOOPPSSIISS jjuuddggee [ --vv ] jjuuddggee [ --bb ] file ... DDEESSCCRRIIPPTTIIOONN _J_u_d_g_e reads each argument and attempts to guess the qual- ity with which it was saved. Currently, only a rough indi- cator is calculcated, ranging from 0 (lowest quality) to 1000 (highest quality), an extension to other formats would be straightforward, but isn't planned. It can read all pictures the IIJJGG jjppeegg lliibbrraarryy can read, i.e. normal and progressive jpeg's. OOPPTTIIOONNSS --vv Display version number and exit. --bb Display only quality indicator, suppress other information (filenames). BBUUGGSS It should be possible to judge pictures stored in non- lossy formats, too, since conversion to jpeg may influence the measurement. The quality indicator is non-linear, and could be much better. The algorithm to calculate the quality was made up in 10 minutes, after staring at various histograms. AACCKKNNOOWWLLEEDDGGEEMMEENNTTSS This program contains code from the IIJJGG jjppeegg ssooffttwwaarree.. Judge - guess picture quality 1 jpegjudge-0.0.2.orig/stamp-h.in0000664000000000000000000000001207230107062015003 0ustar rootroottimestamp