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gimp/plug-ins/jpeg/jpegqual.c
Raphael Quinet 0de56fd922 updated the table of known devices and software, work in progress. 
2007-09-20  Raphael Quinet  <raphael@gimp.org>

	* plug-ins/jpeg/jpegqual.c (quant_info): updated the table of
	known devices and software, work in progress.

svn path=/trunk/; revision=23595
2007-09-20 16:01:29 +00:00

1016 lines
41 KiB
C
Raw Blame History

/* jpegqual.c - analyze quality settings of existing JPEG files
*
* Copyright (C) 2007 Raphaël Quinet <raphael@gimp.org>
*
* 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 of the License, 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.
*/
/*
* This program analyzes the quantization tables of the JPEG files
* given on the command line and displays their quality settings.
*
* It is useful for developers or maintainers of the JPEG plug-in
* because it can be used to validate the formula used in
* jpeg_detect_quality(), by comparing the quality reported for
* different JPEG files.
*
* It can also dump quantization tables so that they can be integrated
* into this program and recognized later. This can be used to identify
* which device or which program saved a JPEG file.
*/
/*
* TODO:
* - rename this program!
* - update quant_info[].
* - reorganize the options: 2 groups for print options and for selection.
* - re-add the code to compare different formulas for approx. IJG quality.
*/
#include <stdio.h>
#include <string.h>
#include <setjmp.h>
#include <glib.h>
#include <jpeglib.h>
#include <jerror.h>
#include "jpeg-quality.h"
/* command-line options */
static gboolean option_summary = FALSE;
static gboolean option_ctable = FALSE;
static gboolean option_table_2cols = FALSE;
static gboolean option_unknown = FALSE;
static gboolean option_ignore_err = FALSE;
static GOptionEntry option_entries[] =
{
{ "ignore-errors", 'i', 0, G_OPTION_ARG_NONE, &option_ignore_err,
"Continue processing other files after a JPEG error", NULL },
{ "summary", 's', 0, G_OPTION_ARG_NONE, &option_summary,
"Print summary information and closest IJG quality", NULL },
{ "tables", 't', 0, G_OPTION_ARG_NONE, &option_table_2cols,
"Dump quantization tables", NULL },
{ "c-tables", 'c', 0, G_OPTION_ARG_NONE, &option_ctable,
"Dump quantization tables as C code", NULL },
{ "ctables", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE, &option_ctable,
NULL, NULL },
{ "unknown", 'u', 0, G_OPTION_ARG_NONE, &option_unknown,
"Only print information about files with unknown tables", NULL },
{ NULL }
};
/* information about known JPEG quantization tables */
typedef struct
{
/* const guint hash; */ /* hash of luminance/chrominance tables */
const gint lum_sum; /* sum of luminance table divisors */
const gint chrom_sum; /* sum of chrominance table divisors */
const gint subsmp_h; /* horizontal subsampling (1st component) */
const gint subsmp_v; /* vertical subsampling (1st component) */
const gint num_quant_tables; /* number of tables (< 0 if no grayscale) */
const gchar *source_name; /* name of software of device */
const gchar *setting_name; /* name of quality setting */
const gint ijg_qual; /* closest IJG quality setting */
} QuantInfo;
static const QuantInfo quant_info[] =
{
{ 64, 64, 0, 0, 2, "IJG JPEG Library", "quality 100", 100 },
{ 86, 115, 0, 0, 2, "IJG JPEG Library", "quality 99", 99 },
{ 151, 224, 0, 0, 2, "IJG JPEG Library", "quality 98", 98 },
{ 221, 333, 0, 0, 2, "IJG JPEG Library", "quality 97", 97 },
{ 292, 443, 0, 0, 2, "IJG JPEG Library", "quality 96", 96 },
{ 369, 558, 0, 0, 2, "IJG JPEG Library", "quality 95", 95 },
{ 441, 668, 0, 0, 2, "IJG JPEG Library", "quality 94", 94 },
{ 518, 779, 0, 0, 2, "IJG JPEG Library", "quality 93", 93 },
{ 592, 891, 0, 0, 2, "IJG JPEG Library", "quality 92", 92 },
{ 667, 999, 0, 0, 2, "IJG JPEG Library", "quality 91", 91 },
{ 736, 1110, 0, 0, 2, "IJG JPEG Library", "quality 90", 90 },
{ 814, 1223, 0, 0, 2, "IJG JPEG Library", "quality 89", 89 },
{ 884, 1332, 0, 0, 2, "IJG JPEG Library", "quality 88", 88 },
{ 961, 1444, 0, 0, 2, "IJG JPEG Library", "quality 87", 87 },
{ 1031, 1555, 0, 0, 2, "IJG JPEG Library", "quality 86", 86 },
{ 1109, 1666, 0, 0, 2, "IJG JPEG Library", "quality 85", 85 },
{ 1179, 1778, 0, 0, 2, "IJG JPEG Library", "quality 84", 84 },
{ 1251, 1888, 0, 0, 2, "IJG JPEG Library", "quality 83", 83 },
{ 1326, 2000, 0, 0, 2, "IJG JPEG Library", "quality 82", 82 },
{ 1398, 2111, 0, 0, 2, "IJG JPEG Library", "quality 81", 81 },
{ 1477, 2221, 0, 0, 2, "IJG JPEG Library", "quality 80", 80 },
{ 1552, 2336, 0, 0, 2, "IJG JPEG Library", "quality 79", 79 },
{ 1620, 2445, 0, 0, 2, "IJG JPEG Library", "quality 78", 78 },
{ 1692, 2556, 0, 0, 2, "IJG JPEG Library", "quality 77", 77 },
{ 1773, 2669, 0, 0, 2, "IJG JPEG Library", "quality 76", 76 },
{ 1858, 2780, 0, 0, 2, "IJG JPEG Library", "quality 75", 75 },
{ 1915, 2836, 0, 0, 2, "IJG JPEG Library", "quality 74", 74 },
{ 1996, 2949, 0, 0, 2, "IJG JPEG Library", "quality 73", 73 },
{ 2068, 3060, 0, 0, 2, "IJG JPEG Library", "quality 72", 72 },
{ 2136, 3169, 0, 0, 2, "IJG JPEG Library", "quality 71", 71 },
{ 2211, 3284, 0, 0, 2, "IJG JPEG Library", "quality 70", 70 },
{ 2290, 3394, 0, 0, 2, "IJG JPEG Library", "quality 69", 69 },
{ 2362, 3505, 0, 0, 2, "IJG JPEG Library", "quality 68", 68 },
{ 2437, 3617, 0, 0, 2, "IJG JPEG Library", "quality 67", 67 },
{ 2509, 3727, 0, 0, 2, "IJG JPEG Library", "quality 66", 66 },
{ 2583, 3839, 0, 0, 2, "IJG JPEG Library", "quality 65", 65 },
{ 2657, 3950, 0, 0, 2, "IJG JPEG Library", "quality 64", 64 },
{ 2727, 4061, 0, 0, 2, "IJG JPEG Library", "quality 63", 63 },
{ 2804, 4173, 0, 0, 2, "IJG JPEG Library", "quality 62", 62 },
{ 2874, 4282, 0, 0, 2, "IJG JPEG Library", "quality 61", 61 },
{ 2952, 4395, 0, 0, 2, "IJG JPEG Library", "quality 60", 60 },
{ 3021, 4506, 0, 0, 2, "IJG JPEG Library", "quality 59", 59 },
{ 3096, 4614, 0, 0, 2, "IJG JPEG Library", "quality 58", 58 },
{ 3170, 4726, 0, 0, 2, "IJG JPEG Library", "quality 57", 57 },
{ 3247, 4837, 0, 0, 2, "IJG JPEG Library", "quality 56", 56 },
{ 3323, 4947, 0, 0, 2, "IJG JPEG Library", "quality 55", 55 },
{ 3396, 5062, 0, 0, 2, "IJG JPEG Library", "quality 54", 54 },
{ 3467, 5172, 0, 0, 2, "IJG JPEG Library", "quality 53", 53 },
{ 3541, 5281, 0, 0, 2, "IJG JPEG Library", "quality 52", 52 },
{ 3621, 5396, 0, 0, 2, "IJG JPEG Library", "quality 51", 51 },
{ 3688, 5505, 0, 0, 2, "IJG JPEG Library", "quality 50", 50 },
{ 3755, 5614, 0, 0, 2, "IJG JPEG Library", "quality 49", 49 },
{ 3835, 5729, 0, 0, 2, "IJG JPEG Library", "quality 48", 48 },
{ 3909, 5838, 0, 0, 2, "IJG JPEG Library", "quality 47", 47 },
{ 3980, 5948, 0, 0, 2, "IJG JPEG Library", "quality 46", 46 },
{ 4092, 6116, 0, 0, 2, "IJG JPEG Library", "quality 45", 45 },
{ 4166, 6226, 0, 0, 2, "IJG JPEG Library", "quality 44", 44 },
{ 4280, 6396, 0, 0, 2, "IJG JPEG Library", "quality 43", 43 },
{ 4393, 6562, 0, 0, 2, "IJG JPEG Library", "quality 42", 42 },
{ 4463, 6672, 0, 0, 2, "IJG JPEG Library", "quality 41", 41 },
{ 4616, 6897, 0, 0, 2, "IJG JPEG Library", "quality 40", 40 },
{ 4719, 7060, 0, 0, 2, "IJG JPEG Library", "quality 39", 39 },
{ 4829, 7227, 0, 0, 2, "IJG JPEG Library", "quality 38", 38 },
{ 4976, 7447, 0, 0, 2, "IJG JPEG Library", "quality 37", 37 },
{ 5086, 7616, 0, 0, 2, "IJG JPEG Library", "quality 36", 36 },
{ 5240, 7841, 0, 0, 2, "IJG JPEG Library", "quality 35", 35 },
{ 5421, 8114, 0, 0, 2, "IJG JPEG Library", "quality 34", 34 },
{ 5571, 8288, 0, 0, 2, "IJG JPEG Library", "quality 33", 33 },
{ 5756, 8565, 0, 0, 2, "IJG JPEG Library", "quality 32", 32 },
{ 5939, 8844, 0, 0, 2, "IJG JPEG Library", "quality 31", 31 },
{ 6125, 9122, 0, 0, 2, "IJG JPEG Library", "quality 30", 30 },
{ 6345, 9455, 0, 0, 2, "IJG JPEG Library", "quality 29", 29 },
{ 6562, 9787, 0, 0, 2, "IJG JPEG Library", "quality 28", 28 },
{ 6823, 10175, 0, 0, 2, "IJG JPEG Library", "quality 27", 27 },
{ 7084, 10567, 0, 0, 2, "IJG JPEG Library", "quality 26", 26 },
{ 7376, 11010, 0, 0, 2, "IJG JPEG Library", "quality 25", 25 },
{ 7668, 11453, 0, 0, 2, "IJG JPEG Library", "quality 24", 24 },
{ 7995, 11954, 0, 0, 2, "IJG JPEG Library", "quality 23", 23 },
{ 8331, 12511, 0, 0, 2, "IJG JPEG Library", "quality 22", 22 },
{ 8680, 13121, 0, 0, 2, "IJG JPEG Library", "quality 21", 21 },
{ 9056, 13790, 0, 0, 2, "IJG JPEG Library", "quality 20", 20 },
{ 9368, 14204, 0, 0, 2, "IJG JPEG Library", "quality 19", 19 },
{ 9679, 14267, 0, 0, 2, "IJG JPEG Library", "quality 18", 18 },
{ 10027, 14346, 0, 0, 2, "IJG JPEG Library", "quality 17", 17 },
{ 10360, 14429, 0, 0, 2, "IJG JPEG Library", "quality 16", 16 },
{ 10714, 14526, 0, 0, 2, "IJG JPEG Library", "quality 15", 15 },
{ 11081, 14635, 0, 0, 2, "IJG JPEG Library", "quality 14", 14 },
{ 11456, 14754, 0, 0, 2, "IJG JPEG Library", "quality 13", 13 },
{ 11861, 14864, 0, 0, 2, "IJG JPEG Library", "quality 12", 12 },
{ 12240, 14985, 0, 0, 2, "IJG JPEG Library", "quality 11", 11 },
{ 12560, 15110, 0, 0, 2, "IJG JPEG Library", "quality 10", 10 },
{ 12859, 15245, 0, 0, 2, "IJG JPEG Library", "quality 9", 9 },
{ 13230, 15369, 0, 0, 2, "IJG JPEG Library", "quality 8", 8 },
{ 13623, 15523, 0, 0, 2, "IJG JPEG Library", "quality 7", 7 },
{ 14073, 15731, 0, 0, 2, "IJG JPEG Library", "quality 6", 6 },
{ 14655, 16010, 0, 0, 2, "IJG JPEG Library", "quality 5", 5 },
{ 15277, 16218, 0, 0, 2, "IJG JPEG Library", "quality 4", 4 },
{ 15946, 16320, 0, 0, 2, "IJG JPEG Library", "quality 3", 3 },
{ 16315, 16320, 0, 0, 2, "IJG JPEG Library", "quality 2", 2 },
{ 16320, 16320, 0, 0, 2, "IJG JPEG Library", "quality 1", 1 },
{ 16320, 16320, 0, 0, 2, "IJG JPEG Library", "quality 0", 1 },
{ 8008, 11954, 0, 0, 2, "IJG JPEG Library", "not baseline 23", -22 },
{ 8370, 12511, 0, 0, 2, "IJG JPEG Library", "not baseline 22", -21 },
{ 8774, 13121, 0, 0, 2, "IJG JPEG Library", "not baseline 21", -20 },
{ 9234, 13790, 0, 0, 2, "IJG JPEG Library", "not baseline 20", -19 },
{ 9700, 14459, 0, 0, 2, "IJG JPEG Library", "not baseline 19", -17 },
{ 10209, 15236, 0, 0, 2, "IJG JPEG Library", "not baseline 18", -14 },
{ 10843, 16182, 0, 0, 2, "IJG JPEG Library", "not baseline 17", -11 },
{ 11505, 17183, 0, 0, 2, "IJG JPEG Library", "not baseline 16", -7 },
{ 12279, 18351, 0, 0, 2, "IJG JPEG Library", "not baseline 15", -5 },
{ 13166, 19633, 0, 0, 2, "IJG JPEG Library", "not baseline 14", 0 },
{ 14160, 21129, 0, 0, 2, "IJG JPEG Library", "not baseline 13", 0 },
{ 15344, 22911, 0, 0, 2, "IJG JPEG Library", "not baseline 12", 0 },
{ 16748, 24969, 0, 0, 2, "IJG JPEG Library", "not baseline 11", 0 },
{ 18440, 27525, 0, 0, 2, "IJG JPEG Library", "not baseline 10", 0 },
{ 20471, 30529, 0, 0, 2, "IJG JPEG Library", "not baseline 9", 0 },
{ 23056, 34422, 0, 0, 2, "IJG JPEG Library", "not baseline 8", 0 },
{ 26334, 39314, 0, 0, 2, "IJG JPEG Library", "not baseline 7", 0 },
{ 30719, 45876, 0, 0, 2, "IJG JPEG Library", "not baseline 6", 0 },
{ 36880, 55050, 0, 0, 2, "IJG JPEG Library", "not baseline 5", 0 },
{ 46114, 68840, 0, 0, 2, "IJG JPEG Library", "not baseline 4", 0 },
{ 61445, 91697, 0, 0, 2, "IJG JPEG Library", "not baseline 3", 0 },
{ 92200, 137625, 0, 0, 2, "IJG JPEG Library", "not baseline 2", 0 },
{ 184400, 275250, 0, 0, 2, "IJG JPEG Library", "not baseline 1", 0 },
{ 184400, 275250, 0, 0, 2, "IJG JPEG Library", "not baseline 0", 0 },
/* FIXME: the following entries are incomplete and need to be verified */
{ 319, 665, 2, 1, -2, "ACD ?", "?", -94 },
{ 436, 996, 2, 1, -2, "ACD ?", "?", -92 },
{ 664, 1499, 2, 1, -2, "ACD ?", "?", -88 },
{ 1590, 3556, 2, 2, -2, "ACD ?", "?", -71 },
{ 109, 171, 1, 1, 2, "Adobe Photoshop CS or CS2", "quality 12", -98 },
{ 303, 466, 1, 1, 2, "Adobe Photoshop CS or CS2, Camera Raw 3", "quality 11", -95 },
{ 535, 750, 1, 1, 2, "Adobe Photoshop 7.0 (or CS2)", "quality 10", -93 },
{ 668, 830, 1, 1, 2, "Adobe Photoshop 7.0, CS, CS2", "quality 9", -91 },
{ 794, 895, 1, 1, 2, "Adobe Photoshop 7.0, CS, CS2", "quality 8", -90 },
{ 971, 950, 1, 1, 2, "Adobe Photoshop CS2", "quality 7", -89 },
{ 884, 831, 2, 2, 2, "Adobe Photoshop CS2", "quality 6", -90 },
{ 1032, 889, 2, 2, 2, "Adobe Photoshop CS2", "quality 5", -89 },
{ 1126, 940, 2, 2, 2, "Adobe Photoshop CS2", "quality 4", -88 },
{ 1216, 977, 2, 2, 2, "Adobe Photoshop CS2", "quality 3", -88 },
{ 1281, 998, 2, 2, 2, "Adobe Photoshop CS2", "quality 2", -87 },
{ 1484, 1083, 2, 2, 2, "Adobe Photoshop CS2", "quality 1", -86 },
{ 1582, 1108, 2, 2, 2, "Adobe Photoshop 7.0, CS, CS2", "quality 0", -85 },
{ 95, 168, 1, 1, 2, "Adobe Photoshop CS2", "save for web 100", -98 },
{ 234, 445, 1, 1, 2, "Adobe Photoshop CS2", "save for web 90", -96 },
{ 406, 724, 1, 1, 2, "Adobe Photoshop CS2", "save for web 80", -93 },
{ 646, 1149, 1, 1, 2, "Adobe Photoshop CS2", "save for web 70", -90 },
{ 974, 1769, 1, 1, 2, "Adobe Photoshop CS2", "save for web 60", -85 },
{ 1221, 1348, 2, 2, 2, "Adobe Photoshop CS2", "save for web 50", -86 },
{ 1821, 1997, 2, 2, 2, "Adobe Photoshop CS2", "save for web 40", -79 },
{ 2223, 2464, 2, 2, 2, "Adobe Photoshop CS2", "save for web 30", -74 },
{ 2575, 2903, 2, 2, 2, "Adobe Photoshop CS2", "save for web 20", -70 },
{ 3514, 3738, 2, 2, 2, "Adobe Photoshop CS2", "save for web 10", -60 },
{ 95, 166, 1, 1, 2, "Adobe Photoshop 7.0, CS, CS2 or Lightroom", "quality 12", -98 },
{ 232, 443, 1, 1, 2, "Adobe Photoshop CS", "quality 11", -96 },
{ 649, 853, 1, 1, 2, "Adobe Photoshop 7.0, CS, CS2, Elements 4.0", "quality 8", -91 },
{ 844, 849, 2, 2, 2, "Adobe Photoshop CS", "quality 5", -90 },
{ 962, 892, 2, 2, 2, "Adobe Photoshop CS", "?", -89 },
{ 406, 722, 1, 1, 2, "Adobe Photoshop 7.0", "quality 10", -93 },
{ 539, 801, 1, 1, 2, "Adobe Photoshop 5.0, 7.0", "quality 9", -92 },
{ 786, 926, 1, 1, 2, "Adobe Photoshop 7.0, CS2", "quality 7", -90 },
{ 717, 782, 2, 2, 2, "Adobe Photoshop 5.0", "?", -91 },
{ 1068, 941, 2, 2, 2, "Adobe Photoshop 4.0", "?", -89 },
{ 339, 670, 1, 1, 2, "Adobe Photoshop ?", "save for web 85", -94 },
{ 406, 722, 1, 1, 2, "Adobe Photoshop 6.0", "quality 10", -93 },
{ 427, 613, 2, 2, 2, "Adobe Photoshop ?", "?", -94 },
{ 525, 941, 1, 1, 2, "Adobe Photoshop ?", "save for web 75", -92 },
{ 803, 1428, 1, 1, 2, "Adobe Photoshop ?", "save for web 65", -87 },
{ 1085, 1996, 1, 1, 2, "Adobe Photoshop ?", "save for web 55", -83 },
{ 1156, 2116, 1, 1, 2, "Adobe Photoshop ?", "save for web 52", -82 },
{ 1175, 2169, 1, 1, 2, "Adobe Photoshop ?", "save for web 51", -81 },
{ 2272, 2522, 2, 2, 2, "Adobe Photoshop ?", "save for web 29", -73 },
{ 4028, 4174, 2, 2, 2, "Adobe Photoshop ?", "save for web 3", -55 },
{ 513, 0, 1, 1, 1, "Adobe Photoshop ?", "?", -93 },
{ 2515, 2831, 2, 2, 2, "Adobe ImageReady", "save for web 22", -70 },
{ 3822, 3975, 2, 2, 2, "Adobe ImageReady", "save for web 6", -57 },
{ 255, 393, 2, 1, 2, "Apple Quicktime 7.1 or 7.2", "?", -96 },
{ 513, 775, 2, 2, 2, "Apple Quicktime 7.2", "?", -93 },
{ 543, 784, 2, 1, -2, "Apple Quicktime 7.1", "?", -92 },
{ 361, 506, 2, 1, 2, "Apple ?", "?", -95 },
{ 1511, 2229, 2, 2, 2, "Apple ?", "?", -79 },
{ 188, 276, 2, 1, -2, "Canon EOS 300D, 350D or 400D", "Fine", -97 },
{ 708, 1057, 2, 1, -2, "Canon EOS 10D", "Normal", -90 },
{ 533, 1325, 2, 1, -2, "Canon PowerShot A95, S1, S2, SD400 or SD630", "Fine", -89 },
{ 192, 556, 2, 1, -2, "Canon PowerShot S5 IS, A300, A430, S200, SD500, SD700, Ixus 700 or 800", "Superfine", -95 },
{ 533, 1325, 1, 2, -2, "Canon Digital Ixus 400", "Fine", -89 },
{ 288, 443, 2, 1, -3, "FujiFilm MX-2700", "?", -96 },
{ 389, 560, 2, 1, -3, "FujiFilm FinePix S700", "Fine", -94 },
{ 515, 774, 2, 1, -3, "FujiFilm FinePix 2600 Zoom", "Fine", -93 },
{ 167, 240, 2, 2, -3, "HP PhotoSmart C850, C935", "?", -97 },
{ 167, 240, 2, 2, -3, "HP PhotoSmart C850, C935", "?", -97 },
{ 1970, 1970, 2, 2, -3, "HP PhotoSmart C812", "?", -78 },
{ 369, 558, 2, 1, -3, "Kodak P880", "?", 95 },
{ 566, 583, 2, 2, -2, "Kodak V610", "Fine", -93 },
{ 736, 1110, 2, 2, -2, "Kodak DC240", "?", 90 },
{ 736, 1110, 1, 1, -2, "Kodak Imaging", "High (high res.)", 90 },
{ 736, 1110, 2, 1, -2, "Kodak Imaging", "High (medium res.)", 90 },
{ 736, 1110, 4, 1, -2, "Kodak Imaging", "High (low res.)", 90 },
{ 736, 0, 1, 1, 1, "Kodak Imaging", "High (grayscale)", 90 },
{ 3688, 5505, 1, 1, -2, "Kodak Imaging", "Medium (high res.)", 50 },
{ 3688, 5505, 2, 1, -2, "Kodak Imaging", "Medium (medium res.)", 50 },
{ 3688, 5505, 4, 1, -2, "Kodak Imaging", "Medium (low res.)", 50 },
{ 3688, 0, 1, 1, 1, "Kodak Imaging", "Medium (grayscale)", 50 },
{ 9056, 13790, 1, 1, -2, "Kodak Imaging", "Low (high res.)", 20 },
{ 9056, 13790, 2, 1, -2, "Kodak Imaging", "Low (medium res.)", 20 },
{ 9056, 13790, 4, 1, -2, "Kodak Imaging", "Low (low res.)", 20 },
{ 9056, 0, 1, 1, 1, "Kodak Imaging", "Low (grayscale)", 20 },
{ 161, 179, 1, 1, -2, "Lead ?", "?", -98 },
{ 711, 1055, 1, 1, -2, "Lead ?", "?", -90 },
{ 1079, 1610, 1, 1, -2, "Lead ?", "?", -85 },
{ 2031, 3054, 1, 1, -2, "Lead ?", "?", -72 },
{ 4835, 7226, 1, 1, -2, "Lead ?", "?", -37 },
{ 8199, 12287, 1, 1, -2, "Lead ?", "?", -22 },
{ 96, 117, 2, 1, -2, "Leica Digilux 3", "?", -98 },
{ 221, 333, 2, 1, -2, "Leica M8", "?", 97 },
{ 582, 836, 2, 1, -2, "Medion ?", "?", -92 },
{ 433, 667, 2, 1, -2, "Medion ?", "?", -94 },
{ 1858, 2780, 2, 2, 2, "Microsoft Office", "Default", 75 },
{ 116, 169, 2, 1, -2, "Nikon D50, D70, D70s, D80", "Fine", -98 },
{ 218, 333, 2, 1, -2, "Nikon D70 or D70s", "Normal", -97 },
{ 616, 941, 2, 1, -2, "Nikon D70 or D70s", "Basic", -91 },
{ 671, 999, 2, 1, -2, "Nikon D70 or D70s", "Basic + raw", -90 },
{ 127, 169, 2, 1, -2, "Nikon D70 v1.0", "Fine", -98 },
{ 302, 444, 2, 1, -2, "Nikon D70 v1.0", "Fine", -95 },
{ 315, 499, 2, 1, -2, "Nikon D70 v1.0", "Fine", -95 },
{ 329, 500, 2, 1, -2, "Nikon D70 v1.0", "Fine", -95 },
{ 346, 500, 2, 1, -2, "Nikon D70 v1.0", "Fine", -95 },
{ 372, 558, 2, 1, -2, "Nikon D70 v1.0", "Fine", -94 },
{ 389, 560, 2, 1, -2, "Nikon D70 v1.0", "Fine", -94 },
{ 419, 611, 2, 1, -2, "Nikon D70 v1.0", "Fine", -94 },
{ 449, 668, 2, 1, -2, "Nikon D70 v1.0", "Fine", -93 },
{ 506, 775, 2, 1, -2, "Nikon D70 v1.0", "Fine", -93 },
{ 529, 781, 2, 1, -2, "Nikon D70 v1.0", "Fine", -92 },
{ 261, 389, 2, 1, -2, "Nikon D50", "Normal", -96 },
{ 345, 499, 2, 1, -2, "Nikon D50", "Normal", -95 },
{ 855, 1279, 2, 1, -2, "Nikon D40", "?", -88 },
{ 667, 999, 2, 1, -3, "Nikon E4300", "Normal", 91 },
{ 736, 1110, 2, 1, -3, "Nikon E4300", "Normal", 90 },
{ 884, 1332, 2, 1, -3, "Nikon E4300", "Normal", 88 },
{ 64, 64, 1, 1, -2, "Nikon Browser 6", "High quality", 100 },
{ 779, 1164, 1, 1, -2, "Nikon Browser 6 or PictureProject 1.6", "Standard quality", -89 },
{ 1697, 2554, 2, 1, -2, "Nikon Browser 6", "Standard eq", -76 },
{ 2746, 5112, 2, 2, -2, "Nikon Browser 6", "Standard compression", -57 },
{ 8024, 12006, 2, 2, -2, "Nikon Browser 6", "Maximum compression", -22 },
{ 736, 1110, 2, 2, -2, "Olympus Camedia Master", "High quality?", 90 },
{ 1477, 2221, 2, 2, -2, "Olympus u710,S710", "Super high quality?", 80 },
{ 437, 617, 2, 1, -2, "Olympus u30D,S410D,u410D", "High quality", -94 },
{ 447, 670, 2, 1, -2, "Olympus u30D,S410D,u410D", "High quality", -93 },
{ 447, 670, 2, 1, -2, "Olympus u30D,S410D,u410D", "High quality", -93 },
{ 814, 1223, 2, 1, -3, "Olympus C960Z,D460Z", "Standard quality", 89 },
{ 884, 1332, 2, 1, -3, "Olympus C211Z", "Standard quality", 88 },
{ 1552, 2336, 2, 1, -3, "Olympus C990Z,D490Z", "High quality", 79 },
{ 261, 392, 2, 1, -2, "Panasonic DMC-FZ5", "High", -96 },
{ 251, 392, 2, 1, -2, "Panasonic DMC-FZ30", "High", -96 },
{ 280, 445, 2, 1, -2, "Panasonic DMC-FZ30", "High", -96 },
{ 304, 448, 2, 1, -2, "Panasonic DMC-FZ30", "High", -95 },
{ 316, 499, 2, 1, -2, "Panasonic DMC-FZ30", "High", -95 },
{ 332, 550, 2, 1, -2, "Panasonic DMC-FZ30", "High", -95 },
{ 355, 555, 2, 1, -2, "Panasonic DMC-FZ30", "High", -95 },
{ 375, 606, 2, 1, -2, "Panasonic DMC-FZ30", "High", -94 },
{ 400, 615, 2, 1, -2, "Panasonic DMC-FZ30", "High", -94 },
{ 420, 667, 2, 1, -2, "Panasonic DMC-FZ30", "High", -94 },
{ 501, 775, 2, 1, -2, "Panasonic DMC-FZ30", "High", -93 },
{ 577, 891, 2, 1, -2, "Panasonic DMC-FZ30", "High", -92 },
{ 324, 499, 2, 1, 2, "Ricoh Caplio R1V", "?", -95 },
{ 274, 443, 2, 1, 2, "Roxio PhotoSuite", "?", -96 },
{ 634, 943, 2, 1, -2, "Samsung Digimax V3", "?", -91 },
{ 1313, 1997, 2, 1, -2, "Samsung Digimax V3", "?", -82 },
{ 218, 331, 2, 1, -2, "Samsung Digimax S600", "?", -97 },
{ 258, 389, 2, 1, -2, "Sony Cybershot", "?", -96 },
{ 86, 115, 2, 1, -2, "Sony DSC-W55", "Fine", 99 },
{ 122, 169, 2, 1, -2, "Sony DSC-F828, DSC-F88", "?", -98 },
{ 221, 333, 2, 1, -2, "Sony DSC-W30, DSC-W50, DSC-H2, DSC-H5", "?", 97 },
{ 518, 779, 2, 1, -2, "Sony DSC-W70", "?", 93 },
{ 1477, 2221, 2, 2, -2, "Sony DSC-W30, DSC-P43, DSC-S600", "?", 80 },
{ 324, 682, 2, 1, -2, "Sony DSLR-A100", "?", -94 },
{ 736, 1110, 2, 1, -2, "SonyEricsson K750i", "Fine", 90 },
{ 1858, 2780, 2, 1, -2, "SonyEricsson K750i or W200i", "Normal", 75 },
{ 836, 1094, 2, 2, -2, "SonyEricsson K750i", "Panorama fine", -89 },
{ 1672, 2188, 2, 2, -2, "SonyEricsson K750i", "Panorama normal", -79 },
{ 361, 555, 2, 1, -2, "SonyEricsson K750i", "?", -95 },
{ 433, 667, 2, 1, -2, "SonyEricsson K750i", "?", -94 },
{ 954, 1443, 2, 1, -2, "SonyEricsson K750i", "?", -87 },
{ 1024, 1504, 2, 1, -2, "SonyEricsson K750i", "?", -86 },
{ 1097, 1615, 2, 1, -2, "SonyEricsson K750i", "?", -85 },
{ 1168, 1727, 2, 1, -2, "SonyEricsson K750i", "?", -84 },
{ 1324, 2000, 2, 1, -2, "SonyEricsson K750i", "?", -82 },
{ 1473, 2170, 2, 1, -2, "SonyEricsson K750i", "?", -80 },
{ 1615, 2394, 2, 1, -2, "SonyEricsson K750i", "?", -78 },
{ 1759, 2612, 2, 1, -2, "SonyEricsson K750i", "?", -76 },
{ 1491, 1491, 2, 1, -2, "SonyEricsson Z600", "Default", -83 },
{ 2211, 3284, 2, 1, -2, "Trust 760 Powerc@m", "?", 70 },
{ 2211, 3284, 1, 2, -2, "Trust 760 Powerc@m", "?", 70 },
{ 1830, 2725, 1, 1, 2, "Xing VT-Compress", "?", -75 }
};
typedef struct
{
guint32 hashval;
gint subsmp_h;
gint subsmp_v;
gint num_quant_tables;
gint ijg_qual;
GSList *files;
guint16 luminance[DCTSIZE2];
guint16 chrominance[DCTSIZE2];
} QuantTableData;
static GSList *found_tables = NULL;
#if 0 /* FIXME ---v-v-v---------------------------------------------v-v-v--- */
static guint16 **ijg_luminance = NULL; /* luminance, baseline */
static guint16 **ijg_chrominance = NULL; /* chrominance, baseline */
static guint16 **ijg_luminance_nb = NULL; /* luminance, not baseline */
static guint16 **ijg_chrominance_nb = NULL; /* chrominance, not baseline */
/*
* Initialize the IJG quantization tables for each quality setting.
*/
static void
init_ijg_tables (void)
{
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
gint q, i;
ijg_luminance = g_new (guint16 *, 101);
ijg_chrominance = g_new (guint16 *, 101);
for (q = 0; q <= 100; q++)
{
ijg_luminance[q] = g_new (guint16, DCTSIZE2);
ijg_chrominance[q] = g_new (guint16, DCTSIZE2);
}
cinfo.err = jpeg_std_error (&jerr);
jpeg_create_compress (&cinfo);
for (q = 0; q <= 100; q++)
{
jpeg_set_quality (&cinfo, q, TRUE);
for (i = 0; i < DCTSIZE2; i++)
ijg_luminance[q][i] = cinfo.quant_tbl_ptrs[0]->quantval[i];
for (i = 0; i < DCTSIZE2; i++)
ijg_chrominance[q][i] = cinfo.quant_tbl_ptrs[1]->quantval[i];
}
for (q = 0; q <= 100; q++)
{
jpeg_set_quality (&cinfo, q, FALSE);
for (i = 0; i < DCTSIZE2; i++)
ijg_luminance_nb[q][i] = cinfo.quant_tbl_ptrs[0]->quantval[i];
for (i = 0; i < DCTSIZE2; i++)
ijg_chrominance_nb[q][i] = cinfo.quant_tbl_ptrs[1]->quantval[i];
}
jpeg_destroy_compress (&cinfo);
}
/*
* Check if two quantization tables are identical.
*/
static gboolean
compare_tables (const guint16 *quant_table1,
const guint16 *quant_table2)
{
gint i;
g_return_val_if_fail (quant_table1 != NULL, FALSE);
g_return_val_if_fail (quant_table2 != NULL, FALSE);
for (i = 0; i < DCTSIZE2; i++)
if (quant_table1[i] != quant_table2[i])
return FALSE;
return TRUE;
}
#endif /* FIXME ---^-^-^--------------------------------------------^-^-^--- */
/*
* Trivial hash function (simple, but good enough for 1 to 4 * 64 short ints).
*/
static guint32
hash_quant_tables (struct jpeg_decompress_struct *cinfo)
{
guint32 hashval;
gint t;
gint i;
hashval = 11;
for (t = 0; t < 4; t++)
if (cinfo->quant_tbl_ptrs[t])
for (i = 0; i < DCTSIZE2; i++)
hashval = hashval * 4177 + cinfo->quant_tbl_ptrs[t]->quantval[i];
return hashval;
}
static void
add_unknown_table (struct jpeg_decompress_struct *cinfo,
gchar *filename)
{
guint32 hashval;
GSList *list;
QuantTableData *table_data;
gint num_quant_tables;
gint t;
gint i;
hashval = hash_quant_tables (cinfo);
/* linear search - the number of unknown tables is usually very small */
for (list = found_tables; list; list = list->next)
{
table_data = list->data;
if (table_data->hashval == hashval
&& table_data->subsmp_h == cinfo->comp_info[0].h_samp_factor
&& table_data->subsmp_v == cinfo->comp_info[0].v_samp_factor)
{
/* this unknown table has already been seen in previous files */
table_data->files = g_slist_prepend (table_data->files, filename);
return;
}
}
/* not found => new table */
table_data = g_new (QuantTableData, 1);
table_data->hashval = hashval;
table_data->subsmp_h = cinfo->comp_info[0].h_samp_factor;
table_data->subsmp_v = cinfo->comp_info[0].v_samp_factor;
num_quant_tables = 0;
for (t = 0; t < 4; t++)
if (cinfo->quant_tbl_ptrs[t])
num_quant_tables++;
table_data->num_quant_tables = num_quant_tables;
table_data->ijg_qual = jpeg_detect_quality (cinfo);
table_data->files = g_slist_prepend (NULL, filename);
if (cinfo->quant_tbl_ptrs[0])
{
for (i = 0; i < DCTSIZE2; i++)
table_data->luminance[i] = cinfo->quant_tbl_ptrs[0]->quantval[i];
}
else
{
for (i = 0; i < DCTSIZE2; i++)
table_data->luminance[i] = 0;
}
if (cinfo->quant_tbl_ptrs[1])
{
for (i = 0; i < DCTSIZE2; i++)
table_data->chrominance[i] = cinfo->quant_tbl_ptrs[1]->quantval[i];
}
else
{
for (i = 0; i < DCTSIZE2; i++)
table_data->chrominance[i] = 0;
}
found_tables = g_slist_prepend (found_tables, table_data);
}
/*
* Analyze the JPEG quantization tables and return a list of devices or
* software that can generate the same tables and subsampling factors.
*/
static GSList *
detect_source (struct jpeg_decompress_struct *cinfo,
gint num_quant_tables)
{
guint lum_sum;
guint chrom_sum;
gint i;
GSList *source_list;
/* compute sum of luminance and chrominance quantization tables */
lum_sum = 0;
chrom_sum = 0;
if (cinfo->quant_tbl_ptrs[0])
{
for (i = 0; i < DCTSIZE2; i++)
lum_sum += cinfo->quant_tbl_ptrs[0]->quantval[i];
}
if (cinfo->quant_tbl_ptrs[1])
{
for (i = 0; i < DCTSIZE2; i++)
chrom_sum += cinfo->quant_tbl_ptrs[1]->quantval[i];
}
/* there can be more than one match (if sampling factors are compatible) */
source_list = NULL;
if (chrom_sum == 0 && num_quant_tables == 1)
{
/* grayscale */
for (i = 0; i < G_N_ELEMENTS (quant_info); i++)
{
if (quant_info[i].lum_sum == lum_sum
&& (quant_info[i].subsmp_h == 0
|| quant_info[i].subsmp_h
== cinfo->comp_info[0].h_samp_factor)
&& (quant_info[i].subsmp_v == 0
|| quant_info[i].subsmp_v
== cinfo->comp_info[0].v_samp_factor)
&& quant_info[i].num_quant_tables > 0)
{
source_list = g_slist_append (source_list,
(gpointer) (quant_info + i));
}
}
}
else
{
/* RGB and other color spaces */
for (i = 0; i < G_N_ELEMENTS (quant_info); i++)
{
if (quant_info[i].lum_sum == lum_sum
&& quant_info[i].chrom_sum == chrom_sum
&& (quant_info[i].subsmp_h == 0
|| quant_info[i].subsmp_h
== cinfo->comp_info[0].h_samp_factor)
&& (quant_info[i].subsmp_v == 0
|| quant_info[i].subsmp_v
== cinfo->comp_info[0].v_samp_factor)
&& (quant_info[i].num_quant_tables == num_quant_tables
|| quant_info[i].num_quant_tables == -num_quant_tables))
{
source_list = g_slist_append (source_list,
(gpointer) (quant_info + i));
}
}
}
return source_list;
}
/*
* ... FIXME: docs
*/
static void
print_summary (struct jpeg_decompress_struct *cinfo,
gint num_quant_tables)
{
gint quality;
gint i;
GSList *source_list;
QuantInfo *source_info;
/* detect JPEG quality - test the formula used in the jpeg plug-in */
quality = jpeg_detect_quality (cinfo);
if (quality > 0)
g_print ("\tQuality: %02d (exact)\n", quality);
else if (quality < 0)
g_print ("\tQuality: %02d (approx)\n", -quality);
else
g_print ("\tQuality: unknown\n");
/* JPEG sampling factors */
g_print ("\tSampling: %dx%d",
cinfo->comp_info[0].h_samp_factor,
cinfo->comp_info[0].v_samp_factor);
if ((cinfo->num_components > 1 && cinfo->num_components != 3)
|| cinfo->comp_info[1].h_samp_factor != 1
|| cinfo->comp_info[1].v_samp_factor != 1
|| cinfo->comp_info[2].h_samp_factor != 1
|| cinfo->comp_info[2].v_samp_factor != 1)
{
for (i = 1; i < cinfo->num_components; i++)
g_print (",%dx%d",
cinfo->comp_info[i].h_samp_factor,
cinfo->comp_info[i].v_samp_factor);
}
g_print ("\n");
/* Number of quantization tables */
g_print ("\tQ.tables: %d\n", num_quant_tables);
source_list = detect_source (cinfo, num_quant_tables);
if (source_list)
{
GSList *l;
for (l = source_list; l; l = l->next)
{
source_info = l->data;
g_print ("\tSource: %s - %s\n",
source_info->source_name,
source_info->setting_name);
}
g_slist_free (source_list);
}
else
g_print ("\tSource: unknown\n");
}
/*
* Print a quantization table as a C array.
*/
static void
print_ctable (gint table_id,
const guint16 *quant_table,
gboolean more)
{
gint i;
g_return_if_fail (quant_table != NULL);
if (table_id >= 0)
g_print (" { /* table %d */\n ", table_id);
else
g_print (" {\n ");
for (i = 0; i < DCTSIZE2; i++)
{
if (i == DCTSIZE2 - 1)
g_print ("%3d\n", quant_table[i]);
else if ((i + 1) % DCTSIZE == 0)
g_print ("%3d,\n ", quant_table[i]);
else
g_print ("%3d, ", quant_table[i]);
}
if (more)
g_print (" },\n");
else
g_print (" }\n");
}
/*
* Print one or two quantization tables, two columns.
*/
static void
print_table_2cols (gint table1_id,
const guint16 *quant_table1,
gint table2_id,
const guint16 *quant_table2)
{
gint i;
gint j;
if (quant_table2)
g_print ("\tQuantization table %d: Quantization table %d:\n\t",
table1_id, table2_id);
else
g_print ("\tQuantization table %d:\n\t", table1_id);
for (i = 0; i < DCTSIZE; i++)
{
if (quant_table1)
{
for (j = 0; j < DCTSIZE; j++)
{
if (j != DCTSIZE - 1)
g_print ("%3d ", quant_table1[i * DCTSIZE + j]);
else
{
if (quant_table2)
g_print ("%3d | ", quant_table1[i * DCTSIZE + j]);
else if (i != DCTSIZE - 1)
g_print ("%3d\n\t", quant_table1[i * DCTSIZE + j]);
else
g_print ("%3d\n", quant_table1[i * DCTSIZE + j]);
}
}
}
else
{
g_print (" | ");
}
if (quant_table2)
{
for (j = 0; j < DCTSIZE; j++)
{
if (j != DCTSIZE - 1)
g_print ("%3d ", quant_table2[i * DCTSIZE + j]);
else if (i != DCTSIZE - 1)
g_print ("%3d\n\t", quant_table2[i * DCTSIZE + j]);
else
g_print ("%3d\n", quant_table2[i * DCTSIZE + j]);
}
}
}
}
/*
* Error handling as in the IJG libjpeg example.
*/
typedef struct my_error_mgr
{
struct jpeg_error_mgr pub; /* "public" fields */
#ifdef __ia64__
long double dummy; /* bug #138357 */
#endif
jmp_buf setjmp_buffer; /* for return to caller */
} *my_error_ptr;
static void
my_error_exit (j_common_ptr cinfo)
{
my_error_ptr myerr = (my_error_ptr) cinfo->err;
(*cinfo->err->output_message) (cinfo);
longjmp (myerr->setjmp_buffer, 1);
}
/*
* Analyze a JPEG file according to the command-line options.
*/
static gboolean
analyze_file (gchar *filename)
{
struct jpeg_decompress_struct cinfo;
struct my_error_mgr jerr;
FILE *f;
gint i;
gint num_quant_tables;
GSList *source_list;
if ((f = fopen (filename, "rb")) == NULL)
{
g_printerr ("Cannot open '%s'\n", filename);
return FALSE;
}
if (option_summary)
g_print ("%s:\n", filename);
cinfo.err = jpeg_std_error (&jerr.pub);
jerr.pub.error_exit = my_error_exit;
if (setjmp (jerr.setjmp_buffer))
{
/* if we get here, the JPEG code has signaled an error. */
jpeg_destroy_decompress (&cinfo);
fclose (f);
return FALSE;
}
jpeg_create_decompress (&cinfo);
jpeg_stdio_src (&cinfo, f);
jpeg_read_header (&cinfo, TRUE);
num_quant_tables = 0;
for (i = 0; i < 4; i++)
if (cinfo.quant_tbl_ptrs[i])
num_quant_tables++;
source_list = detect_source (&cinfo, num_quant_tables);
add_unknown_table (&cinfo, filename); /* FIXME */
/*
if (!source_list)
{
add_unknown_table (&cinfo, filename);
}
*/
if (! option_unknown)
{
if (option_summary)
print_summary (&cinfo, num_quant_tables);
if (option_ctable)
{
g_print (" {\n /* %s */\n \"?\", \"?\",\n %hd, %hd,\n %d,\n",
filename,
cinfo.comp_info[0].h_samp_factor,
cinfo.comp_info[0].v_samp_factor,
num_quant_tables);
for (i = 0; i < 4; i++)
if (cinfo.quant_tbl_ptrs[i])
print_ctable (i, cinfo.quant_tbl_ptrs[i]->quantval,
(i < 3) && cinfo.quant_tbl_ptrs[i + 1]);
g_print (" },\n");
}
if (option_table_2cols)
{
print_table_2cols (0, cinfo.quant_tbl_ptrs[0]->quantval,
1, cinfo.quant_tbl_ptrs[1]->quantval);
if (cinfo.quant_tbl_ptrs[2] || cinfo.quant_tbl_ptrs[3])
print_table_2cols (2, cinfo.quant_tbl_ptrs[2]->quantval,
3, cinfo.quant_tbl_ptrs[3]->quantval);
}
}
if (source_list)
g_slist_free (source_list);
jpeg_destroy_decompress (&cinfo);
fclose (f);
return TRUE;
}
/*
* ... FIXME: docs
*/
static void
print_unknown_tables (void)
{
GSList *list;
GSList *flist;
QuantTableData *table_data;
gint num_files;
gint total_files = 0;
for (list = found_tables; list; list = list->next)
{
table_data = list->data;
if (option_ctable)
{
g_print (" {\n");
num_files = 0;
for (flist = table_data->files; flist; flist = flist->next)
{
g_print(" /* %s */\n", (gchar *)(flist->data));
num_files++;
}
{ /* FIXME */
guint lum_sum;
guint chrom_sum;
gint i;
total_files += num_files;
lum_sum = 0;
chrom_sum = 0;
for (i = 0; i < DCTSIZE2; i++)
lum_sum += table_data->luminance[i];
for (i = 0; i < DCTSIZE2; i++)
chrom_sum += table_data->chrominance[i];
g_print (" /* hash 0x%x, IJG %d, lum %d, chrom %d, files: %d */\n",
table_data->hashval,
table_data->ijg_qual,
lum_sum, chrom_sum,
num_files);
if (chrom_sum == 0 && table_data->num_quant_tables == 1)
{
/* grayscale */
for (i = 0; i < G_N_ELEMENTS (quant_info); i++)
{
if (quant_info[i].lum_sum == lum_sum
&& (quant_info[i].subsmp_h == 0
|| quant_info[i].subsmp_h
== table_data->subsmp_h)
&& (quant_info[i].subsmp_v == 0
|| quant_info[i].subsmp_v
== table_data->subsmp_v)
&& quant_info[i].num_quant_tables > 0)
{
g_print(" XXX \"%s\", \"%s\",\n",
quant_info[i].source_name,
quant_info[i].setting_name);
}
}
}
else
{
/* RGB and other color spaces */
for (i = 0; i < G_N_ELEMENTS (quant_info); i++)
{
if (quant_info[i].lum_sum == lum_sum
&& quant_info[i].chrom_sum == chrom_sum
&& (quant_info[i].subsmp_h == 0
|| quant_info[i].subsmp_h
== table_data->subsmp_h)
&& (quant_info[i].subsmp_v == 0
|| quant_info[i].subsmp_v
== table_data->subsmp_v)
&& (quant_info[i].num_quant_tables == table_data->num_quant_tables
|| quant_info[i].num_quant_tables == -table_data->num_quant_tables))
{
g_print(" XXX \"%s\", \"%s\",\n",
quant_info[i].source_name,
quant_info[i].setting_name);
}
}
}
} /* FIXME */
g_print (" \"?\", \"? (hash %x)\",\n"
" %hd, %hd,\n %d,\n",
table_data->hashval,
table_data->subsmp_h,
table_data->subsmp_v,
-table_data->num_quant_tables);
print_ctable (-1, table_data->luminance, TRUE);
print_ctable (-1, table_data->chrominance, FALSE);
g_print (" },\n");
}
}
g_print ("/* TOTAL FILES: %d */\n", total_files);
}
/*
* Some compiler told me that it needed a function called main()...
*/
int
main (int argc,
char *argv[])
{
GError *error = NULL;
GOptionContext *context;
g_set_prgname ("jpegqual");
context = g_option_context_new ("FILE [...] - analyzes JPEG quantization tables");
g_option_context_add_main_entries (context, option_entries,
NULL /* skip i18n? */);
g_option_context_parse (context, &argc, &argv, &error);
if (argc <= 1)
{
g_printerr ("Missing file name. Try the option --help for help\n");
return 1;
}
if (!option_summary && !option_ctable && !option_table_2cols)
{
g_printerr ("Missing output option. Assuming that you wanted --summary.\n");
option_summary = TRUE;
}
for (argv++, argc--; *argv; argv++, argc--)
{
if (! analyze_file (*argv) && ! option_ignore_err)
return 1;
}
if (option_unknown && found_tables)
{
print_unknown_tables ();
}
return 0;
}
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