You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
761 lines
24 KiB
761 lines
24 KiB
/*
|
|
* cjpeg.c
|
|
*
|
|
* This file was part of the Independent JPEG Group's software:
|
|
* Copyright (C) 1991-1998, Thomas G. Lane.
|
|
* Modified 2003-2011 by Guido Vollbeding.
|
|
* libjpeg-turbo Modifications:
|
|
* Copyright (C) 2010, 2013-2014, 2017, 2019-2021, D. R. Commander.
|
|
* For conditions of distribution and use, see the accompanying README.ijg
|
|
* file.
|
|
*
|
|
* This file contains a command-line user interface for the JPEG compressor.
|
|
* It should work on any system with Unix- or MS-DOS-style command lines.
|
|
*
|
|
* Two different command line styles are permitted, depending on the
|
|
* compile-time switch TWO_FILE_COMMANDLINE:
|
|
* cjpeg [options] inputfile outputfile
|
|
* cjpeg [options] [inputfile]
|
|
* In the second style, output is always to standard output, which you'd
|
|
* normally redirect to a file or pipe to some other program. Input is
|
|
* either from a named file or from standard input (typically redirected).
|
|
* The second style is convenient on Unix but is unhelpful on systems that
|
|
* don't support pipes. Also, you MUST use the first style if your system
|
|
* doesn't do binary I/O to stdin/stdout.
|
|
* To simplify script writing, the "-outfile" switch is provided. The syntax
|
|
* cjpeg [options] -outfile outputfile inputfile
|
|
* works regardless of which command line style is used.
|
|
*/
|
|
|
|
#ifdef CJPEG_FUZZER
|
|
#define JPEG_INTERNALS
|
|
#endif
|
|
#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
|
|
#include "jversion.h" /* for version message */
|
|
#include "jconfigint.h"
|
|
|
|
#ifndef HAVE_STDLIB_H /* <stdlib.h> should declare malloc(),free() */
|
|
extern void *malloc(size_t size);
|
|
extern void free(void *ptr);
|
|
#endif
|
|
|
|
#ifdef USE_CCOMMAND /* command-line reader for Macintosh */
|
|
#ifdef __MWERKS__
|
|
#include <SIOUX.h> /* Metrowerks needs this */
|
|
#include <console.h> /* ... and this */
|
|
#endif
|
|
#ifdef THINK_C
|
|
#include <console.h> /* Think declares it here */
|
|
#endif
|
|
#endif
|
|
|
|
|
|
/* Create the add-on message string table. */
|
|
|
|
#define JMESSAGE(code, string) string,
|
|
|
|
static const char * const cdjpeg_message_table[] = {
|
|
#include "cderror.h"
|
|
NULL
|
|
};
|
|
|
|
|
|
/*
|
|
* This routine determines what format the input file is,
|
|
* and selects the appropriate input-reading module.
|
|
*
|
|
* To determine which family of input formats the file belongs to,
|
|
* we may look only at the first byte of the file, since C does not
|
|
* guarantee that more than one character can be pushed back with ungetc.
|
|
* Looking at additional bytes would require one of these approaches:
|
|
* 1) assume we can fseek() the input file (fails for piped input);
|
|
* 2) assume we can push back more than one character (works in
|
|
* some C implementations, but unportable);
|
|
* 3) provide our own buffering (breaks input readers that want to use
|
|
* stdio directly);
|
|
* or 4) don't put back the data, and modify the input_init methods to assume
|
|
* they start reading after the start of file.
|
|
* #1 is attractive for MS-DOS but is untenable on Unix.
|
|
*
|
|
* The most portable solution for file types that can't be identified by their
|
|
* first byte is to make the user tell us what they are. This is also the
|
|
* only approach for "raw" file types that contain only arbitrary values.
|
|
* We presently apply this method for Targa files. Most of the time Targa
|
|
* files start with 0x00, so we recognize that case. Potentially, however,
|
|
* a Targa file could start with any byte value (byte 0 is the length of the
|
|
* seldom-used ID field), so we provide a switch to force Targa input mode.
|
|
*/
|
|
|
|
static boolean is_targa; /* records user -targa switch */
|
|
|
|
|
|
LOCAL(cjpeg_source_ptr)
|
|
select_file_type(j_compress_ptr cinfo, FILE *infile)
|
|
{
|
|
int c;
|
|
|
|
if (is_targa) {
|
|
#ifdef TARGA_SUPPORTED
|
|
return jinit_read_targa(cinfo);
|
|
#else
|
|
ERREXIT(cinfo, JERR_TGA_NOTCOMP);
|
|
#endif
|
|
}
|
|
|
|
if ((c = getc(infile)) == EOF)
|
|
ERREXIT(cinfo, JERR_INPUT_EMPTY);
|
|
if (ungetc(c, infile) == EOF)
|
|
ERREXIT(cinfo, JERR_UNGETC_FAILED);
|
|
|
|
switch (c) {
|
|
#ifdef BMP_SUPPORTED
|
|
case 'B':
|
|
return jinit_read_bmp(cinfo, TRUE);
|
|
#endif
|
|
#ifdef GIF_SUPPORTED
|
|
case 'G':
|
|
return jinit_read_gif(cinfo);
|
|
#endif
|
|
#ifdef PPM_SUPPORTED
|
|
case 'P':
|
|
return jinit_read_ppm(cinfo);
|
|
#endif
|
|
#ifdef TARGA_SUPPORTED
|
|
case 0x00:
|
|
return jinit_read_targa(cinfo);
|
|
#endif
|
|
default:
|
|
ERREXIT(cinfo, JERR_UNKNOWN_FORMAT);
|
|
break;
|
|
}
|
|
|
|
return NULL; /* suppress compiler warnings */
|
|
}
|
|
|
|
|
|
/*
|
|
* Argument-parsing code.
|
|
* The switch parser is designed to be useful with DOS-style command line
|
|
* syntax, ie, intermixed switches and file names, where only the switches
|
|
* to the left of a given file name affect processing of that file.
|
|
* The main program in this file doesn't actually use this capability...
|
|
*/
|
|
|
|
|
|
static const char *progname; /* program name for error messages */
|
|
static char *icc_filename; /* for -icc switch */
|
|
static char *outfilename; /* for -outfile switch */
|
|
boolean memdst; /* for -memdst switch */
|
|
boolean report; /* for -report switch */
|
|
|
|
|
|
#ifdef CJPEG_FUZZER
|
|
|
|
#include <setjmp.h>
|
|
|
|
struct my_error_mgr {
|
|
struct jpeg_error_mgr pub;
|
|
jmp_buf setjmp_buffer;
|
|
};
|
|
|
|
void my_error_exit(j_common_ptr cinfo)
|
|
{
|
|
struct my_error_mgr *myerr = (struct my_error_mgr *)cinfo->err;
|
|
|
|
longjmp(myerr->setjmp_buffer, 1);
|
|
}
|
|
|
|
static void my_emit_message(j_common_ptr cinfo, int msg_level)
|
|
{
|
|
if (msg_level < 0)
|
|
cinfo->err->num_warnings++;
|
|
}
|
|
|
|
#define HANDLE_ERROR() { \
|
|
if (cinfo.global_state > CSTATE_START) { \
|
|
if (memdst && outbuffer) \
|
|
(*cinfo.dest->term_destination) (&cinfo); \
|
|
jpeg_abort_compress(&cinfo); \
|
|
} \
|
|
jpeg_destroy_compress(&cinfo); \
|
|
if (input_file != stdin && input_file != NULL) \
|
|
fclose(input_file); \
|
|
if (memdst) \
|
|
free(outbuffer); \
|
|
return EXIT_FAILURE; \
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
LOCAL(void)
|
|
usage(void)
|
|
/* complain about bad command line */
|
|
{
|
|
fprintf(stderr, "usage: %s [switches] ", progname);
|
|
#ifdef TWO_FILE_COMMANDLINE
|
|
fprintf(stderr, "inputfile outputfile\n");
|
|
#else
|
|
fprintf(stderr, "[inputfile]\n");
|
|
#endif
|
|
|
|
fprintf(stderr, "Switches (names may be abbreviated):\n");
|
|
fprintf(stderr, " -quality N[,...] Compression quality (0..100; 5-95 is most useful range,\n");
|
|
fprintf(stderr, " default is 75)\n");
|
|
fprintf(stderr, " -grayscale Create monochrome JPEG file\n");
|
|
fprintf(stderr, " -rgb Create RGB JPEG file\n");
|
|
#ifdef ENTROPY_OPT_SUPPORTED
|
|
fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n");
|
|
#endif
|
|
#ifdef C_PROGRESSIVE_SUPPORTED
|
|
fprintf(stderr, " -progressive Create progressive JPEG file\n");
|
|
#endif
|
|
#ifdef TARGA_SUPPORTED
|
|
fprintf(stderr, " -targa Input file is Targa format (usually not needed)\n");
|
|
#endif
|
|
fprintf(stderr, "Switches for advanced users:\n");
|
|
#ifdef C_ARITH_CODING_SUPPORTED
|
|
fprintf(stderr, " -arithmetic Use arithmetic coding\n");
|
|
#endif
|
|
#ifdef DCT_ISLOW_SUPPORTED
|
|
fprintf(stderr, " -dct int Use accurate integer DCT method%s\n",
|
|
(JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
|
|
#endif
|
|
#ifdef DCT_IFAST_SUPPORTED
|
|
fprintf(stderr, " -dct fast Use less accurate integer DCT method [legacy feature]%s\n",
|
|
(JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
|
|
#endif
|
|
#ifdef DCT_FLOAT_SUPPORTED
|
|
fprintf(stderr, " -dct float Use floating-point DCT method [legacy feature]%s\n",
|
|
(JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
|
|
#endif
|
|
fprintf(stderr, " -icc FILE Embed ICC profile contained in FILE\n");
|
|
fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n");
|
|
#ifdef INPUT_SMOOTHING_SUPPORTED
|
|
fprintf(stderr, " -smooth N Smooth dithered input (N=1..100 is strength)\n");
|
|
#endif
|
|
fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n");
|
|
fprintf(stderr, " -outfile name Specify name for output file\n");
|
|
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
|
|
fprintf(stderr, " -memdst Compress to memory instead of file (useful for benchmarking)\n");
|
|
#endif
|
|
fprintf(stderr, " -report Report compression progress\n");
|
|
fprintf(stderr, " -verbose or -debug Emit debug output\n");
|
|
fprintf(stderr, " -version Print version information and exit\n");
|
|
fprintf(stderr, "Switches for wizards:\n");
|
|
fprintf(stderr, " -baseline Force baseline quantization tables\n");
|
|
fprintf(stderr, " -qtables FILE Use quantization tables given in FILE\n");
|
|
fprintf(stderr, " -qslots N[,...] Set component quantization tables\n");
|
|
fprintf(stderr, " -sample HxV[,...] Set component sampling factors\n");
|
|
#ifdef C_MULTISCAN_FILES_SUPPORTED
|
|
fprintf(stderr, " -scans FILE Create multi-scan JPEG per script FILE\n");
|
|
#endif
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
|
|
LOCAL(int)
|
|
parse_switches(j_compress_ptr cinfo, int argc, char **argv,
|
|
int last_file_arg_seen, boolean for_real)
|
|
/* Parse optional switches.
|
|
* Returns argv[] index of first file-name argument (== argc if none).
|
|
* Any file names with indexes <= last_file_arg_seen are ignored;
|
|
* they have presumably been processed in a previous iteration.
|
|
* (Pass 0 for last_file_arg_seen on the first or only iteration.)
|
|
* for_real is FALSE on the first (dummy) pass; we may skip any expensive
|
|
* processing.
|
|
*/
|
|
{
|
|
int argn;
|
|
char *arg;
|
|
boolean force_baseline;
|
|
boolean simple_progressive;
|
|
char *qualityarg = NULL; /* saves -quality parm if any */
|
|
char *qtablefile = NULL; /* saves -qtables filename if any */
|
|
char *qslotsarg = NULL; /* saves -qslots parm if any */
|
|
char *samplearg = NULL; /* saves -sample parm if any */
|
|
char *scansarg = NULL; /* saves -scans parm if any */
|
|
|
|
/* Set up default JPEG parameters. */
|
|
|
|
force_baseline = FALSE; /* by default, allow 16-bit quantizers */
|
|
simple_progressive = FALSE;
|
|
is_targa = FALSE;
|
|
icc_filename = NULL;
|
|
outfilename = NULL;
|
|
memdst = FALSE;
|
|
report = FALSE;
|
|
cinfo->err->trace_level = 0;
|
|
|
|
/* Scan command line options, adjust parameters */
|
|
|
|
for (argn = 1; argn < argc; argn++) {
|
|
arg = argv[argn];
|
|
if (*arg != '-') {
|
|
/* Not a switch, must be a file name argument */
|
|
if (argn <= last_file_arg_seen) {
|
|
outfilename = NULL; /* -outfile applies to just one input file */
|
|
continue; /* ignore this name if previously processed */
|
|
}
|
|
break; /* else done parsing switches */
|
|
}
|
|
arg++; /* advance past switch marker character */
|
|
|
|
if (keymatch(arg, "arithmetic", 1)) {
|
|
/* Use arithmetic coding. */
|
|
#ifdef C_ARITH_CODING_SUPPORTED
|
|
cinfo->arith_code = TRUE;
|
|
#else
|
|
fprintf(stderr, "%s: sorry, arithmetic coding not supported\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
#endif
|
|
|
|
} else if (keymatch(arg, "baseline", 1)) {
|
|
/* Force baseline-compatible output (8-bit quantizer values). */
|
|
force_baseline = TRUE;
|
|
|
|
} else if (keymatch(arg, "dct", 2)) {
|
|
/* Select DCT algorithm. */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
if (keymatch(argv[argn], "int", 1)) {
|
|
cinfo->dct_method = JDCT_ISLOW;
|
|
} else if (keymatch(argv[argn], "fast", 2)) {
|
|
cinfo->dct_method = JDCT_IFAST;
|
|
} else if (keymatch(argv[argn], "float", 2)) {
|
|
cinfo->dct_method = JDCT_FLOAT;
|
|
} else
|
|
usage();
|
|
|
|
} else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
|
|
/* Enable debug printouts. */
|
|
/* On first -d, print version identification */
|
|
static boolean printed_version = FALSE;
|
|
|
|
if (!printed_version) {
|
|
fprintf(stderr, "%s version %s (build %s)\n",
|
|
PACKAGE_NAME, VERSION, BUILD);
|
|
fprintf(stderr, "%s\n\n", JCOPYRIGHT);
|
|
fprintf(stderr, "Emulating The Independent JPEG Group's software, version %s\n\n",
|
|
JVERSION);
|
|
printed_version = TRUE;
|
|
}
|
|
cinfo->err->trace_level++;
|
|
|
|
} else if (keymatch(arg, "version", 4)) {
|
|
fprintf(stderr, "%s version %s (build %s)\n",
|
|
PACKAGE_NAME, VERSION, BUILD);
|
|
exit(EXIT_SUCCESS);
|
|
|
|
} else if (keymatch(arg, "grayscale", 2) ||
|
|
keymatch(arg, "greyscale", 2)) {
|
|
/* Force a monochrome JPEG file to be generated. */
|
|
jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
|
|
|
|
} else if (keymatch(arg, "rgb", 3)) {
|
|
/* Force an RGB JPEG file to be generated. */
|
|
jpeg_set_colorspace(cinfo, JCS_RGB);
|
|
|
|
} else if (keymatch(arg, "icc", 1)) {
|
|
/* Set ICC filename. */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
icc_filename = argv[argn];
|
|
|
|
} else if (keymatch(arg, "maxmemory", 3)) {
|
|
/* Maximum memory in Kb (or Mb with 'm'). */
|
|
long lval;
|
|
char ch = 'x';
|
|
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
|
|
usage();
|
|
if (ch == 'm' || ch == 'M')
|
|
lval *= 1000L;
|
|
cinfo->mem->max_memory_to_use = lval * 1000L;
|
|
|
|
} else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {
|
|
/* Enable entropy parm optimization. */
|
|
#ifdef ENTROPY_OPT_SUPPORTED
|
|
cinfo->optimize_coding = TRUE;
|
|
#else
|
|
fprintf(stderr, "%s: sorry, entropy optimization was not compiled in\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
#endif
|
|
|
|
} else if (keymatch(arg, "outfile", 4)) {
|
|
/* Set output file name. */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
outfilename = argv[argn]; /* save it away for later use */
|
|
|
|
} else if (keymatch(arg, "progressive", 1)) {
|
|
/* Select simple progressive mode. */
|
|
#ifdef C_PROGRESSIVE_SUPPORTED
|
|
simple_progressive = TRUE;
|
|
/* We must postpone execution until num_components is known. */
|
|
#else
|
|
fprintf(stderr, "%s: sorry, progressive output was not compiled in\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
#endif
|
|
|
|
} else if (keymatch(arg, "memdst", 2)) {
|
|
/* Use in-memory destination manager */
|
|
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
|
|
memdst = TRUE;
|
|
#else
|
|
fprintf(stderr, "%s: sorry, in-memory destination manager was not compiled in\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
#endif
|
|
|
|
} else if (keymatch(arg, "quality", 1)) {
|
|
/* Quality ratings (quantization table scaling factors). */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
qualityarg = argv[argn];
|
|
|
|
} else if (keymatch(arg, "qslots", 2)) {
|
|
/* Quantization table slot numbers. */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
qslotsarg = argv[argn];
|
|
/* Must delay setting qslots until after we have processed any
|
|
* colorspace-determining switches, since jpeg_set_colorspace sets
|
|
* default quant table numbers.
|
|
*/
|
|
|
|
} else if (keymatch(arg, "qtables", 2)) {
|
|
/* Quantization tables fetched from file. */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
qtablefile = argv[argn];
|
|
/* We postpone actually reading the file in case -quality comes later. */
|
|
|
|
} else if (keymatch(arg, "report", 3)) {
|
|
report = TRUE;
|
|
|
|
} else if (keymatch(arg, "restart", 1)) {
|
|
/* Restart interval in MCU rows (or in MCUs with 'b'). */
|
|
long lval;
|
|
char ch = 'x';
|
|
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
|
|
usage();
|
|
if (lval < 0 || lval > 65535L)
|
|
usage();
|
|
if (ch == 'b' || ch == 'B') {
|
|
cinfo->restart_interval = (unsigned int)lval;
|
|
cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */
|
|
} else {
|
|
cinfo->restart_in_rows = (int)lval;
|
|
/* restart_interval will be computed during startup */
|
|
}
|
|
|
|
} else if (keymatch(arg, "sample", 2)) {
|
|
/* Set sampling factors. */
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
samplearg = argv[argn];
|
|
/* Must delay setting sample factors until after we have processed any
|
|
* colorspace-determining switches, since jpeg_set_colorspace sets
|
|
* default sampling factors.
|
|
*/
|
|
|
|
} else if (keymatch(arg, "scans", 4)) {
|
|
/* Set scan script. */
|
|
#ifdef C_MULTISCAN_FILES_SUPPORTED
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
scansarg = argv[argn];
|
|
/* We must postpone reading the file in case -progressive appears. */
|
|
#else
|
|
fprintf(stderr, "%s: sorry, multi-scan output was not compiled in\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
#endif
|
|
|
|
} else if (keymatch(arg, "smooth", 2)) {
|
|
/* Set input smoothing factor. */
|
|
int val;
|
|
|
|
if (++argn >= argc) /* advance to next argument */
|
|
usage();
|
|
if (sscanf(argv[argn], "%d", &val) != 1)
|
|
usage();
|
|
if (val < 0 || val > 100)
|
|
usage();
|
|
cinfo->smoothing_factor = val;
|
|
|
|
} else if (keymatch(arg, "targa", 1)) {
|
|
/* Input file is Targa format. */
|
|
is_targa = TRUE;
|
|
|
|
} else {
|
|
usage(); /* bogus switch */
|
|
}
|
|
}
|
|
|
|
/* Post-switch-scanning cleanup */
|
|
|
|
if (for_real) {
|
|
|
|
/* Set quantization tables for selected quality. */
|
|
/* Some or all may be overridden if -qtables is present. */
|
|
if (qualityarg != NULL) /* process -quality if it was present */
|
|
if (!set_quality_ratings(cinfo, qualityarg, force_baseline))
|
|
usage();
|
|
|
|
if (qtablefile != NULL) /* process -qtables if it was present */
|
|
if (!read_quant_tables(cinfo, qtablefile, force_baseline))
|
|
usage();
|
|
|
|
if (qslotsarg != NULL) /* process -qslots if it was present */
|
|
if (!set_quant_slots(cinfo, qslotsarg))
|
|
usage();
|
|
|
|
if (samplearg != NULL) /* process -sample if it was present */
|
|
if (!set_sample_factors(cinfo, samplearg))
|
|
usage();
|
|
|
|
#ifdef C_PROGRESSIVE_SUPPORTED
|
|
if (simple_progressive) /* process -progressive; -scans can override */
|
|
jpeg_simple_progression(cinfo);
|
|
#endif
|
|
|
|
#ifdef C_MULTISCAN_FILES_SUPPORTED
|
|
if (scansarg != NULL) /* process -scans if it was present */
|
|
if (!read_scan_script(cinfo, scansarg))
|
|
usage();
|
|
#endif
|
|
}
|
|
|
|
return argn; /* return index of next arg (file name) */
|
|
}
|
|
|
|
|
|
/*
|
|
* The main program.
|
|
*/
|
|
|
|
int
|
|
#ifdef GTEST
|
|
cjpeg(int argc, char **argv)
|
|
#else
|
|
main(int argc, char **argv)
|
|
#endif
|
|
{
|
|
struct jpeg_compress_struct cinfo;
|
|
#ifdef CJPEG_FUZZER
|
|
struct my_error_mgr myerr;
|
|
struct jpeg_error_mgr &jerr = myerr.pub;
|
|
#else
|
|
struct jpeg_error_mgr jerr;
|
|
#endif
|
|
struct cdjpeg_progress_mgr progress;
|
|
int file_index;
|
|
cjpeg_source_ptr src_mgr;
|
|
FILE *input_file = NULL;
|
|
FILE *icc_file;
|
|
JOCTET *icc_profile = NULL;
|
|
long icc_len = 0;
|
|
FILE *output_file = NULL;
|
|
unsigned char *outbuffer = NULL;
|
|
unsigned long outsize = 0;
|
|
JDIMENSION num_scanlines;
|
|
|
|
/* On Mac, fetch a command line. */
|
|
#ifdef USE_CCOMMAND
|
|
argc = ccommand(&argv);
|
|
#endif
|
|
|
|
progname = argv[0];
|
|
if (progname == NULL || progname[0] == 0)
|
|
progname = "cjpeg"; /* in case C library doesn't provide it */
|
|
|
|
/* Initialize the JPEG compression object with default error handling. */
|
|
cinfo.err = jpeg_std_error(&jerr);
|
|
jpeg_create_compress(&cinfo);
|
|
/* Add some application-specific error messages (from cderror.h) */
|
|
jerr.addon_message_table = cdjpeg_message_table;
|
|
jerr.first_addon_message = JMSG_FIRSTADDONCODE;
|
|
jerr.last_addon_message = JMSG_LASTADDONCODE;
|
|
|
|
/* Initialize JPEG parameters.
|
|
* Much of this may be overridden later.
|
|
* In particular, we don't yet know the input file's color space,
|
|
* but we need to provide some value for jpeg_set_defaults() to work.
|
|
*/
|
|
|
|
cinfo.in_color_space = JCS_RGB; /* arbitrary guess */
|
|
jpeg_set_defaults(&cinfo);
|
|
|
|
/* Scan command line to find file names.
|
|
* It is convenient to use just one switch-parsing routine, but the switch
|
|
* values read here are ignored; we will rescan the switches after opening
|
|
* the input file.
|
|
*/
|
|
|
|
file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
|
|
|
|
#ifdef TWO_FILE_COMMANDLINE
|
|
if (!memdst) {
|
|
/* Must have either -outfile switch or explicit output file name */
|
|
if (outfilename == NULL) {
|
|
if (file_index != argc - 2) {
|
|
fprintf(stderr, "%s: must name one input and one output file\n",
|
|
progname);
|
|
usage();
|
|
}
|
|
outfilename = argv[file_index + 1];
|
|
} else {
|
|
if (file_index != argc - 1) {
|
|
fprintf(stderr, "%s: must name one input and one output file\n",
|
|
progname);
|
|
usage();
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
/* Unix style: expect zero or one file name */
|
|
if (file_index < argc - 1) {
|
|
fprintf(stderr, "%s: only one input file\n", progname);
|
|
usage();
|
|
}
|
|
#endif /* TWO_FILE_COMMANDLINE */
|
|
|
|
/* Open the input file. */
|
|
if (file_index < argc) {
|
|
if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) {
|
|
fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);
|
|
return EXIT_FAILURE;
|
|
}
|
|
} else {
|
|
/* default input file is stdin */
|
|
input_file = read_stdin();
|
|
}
|
|
|
|
/* Open the output file. */
|
|
if (outfilename != NULL) {
|
|
if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) {
|
|
fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
|
|
return EXIT_FAILURE;
|
|
}
|
|
} else if (!memdst) {
|
|
/* default output file is stdout */
|
|
output_file = write_stdout();
|
|
}
|
|
|
|
if (icc_filename != NULL) {
|
|
if ((icc_file = fopen(icc_filename, READ_BINARY)) == NULL) {
|
|
fprintf(stderr, "%s: can't open %s\n", progname, icc_filename);
|
|
return EXIT_FAILURE;
|
|
}
|
|
if (fseek(icc_file, 0, SEEK_END) < 0 ||
|
|
(icc_len = ftell(icc_file)) < 1 ||
|
|
fseek(icc_file, 0, SEEK_SET) < 0) {
|
|
fprintf(stderr, "%s: can't determine size of %s\n", progname,
|
|
icc_filename);
|
|
return EXIT_FAILURE;
|
|
}
|
|
if ((icc_profile = (JOCTET *)malloc(icc_len)) == NULL) {
|
|
fprintf(stderr, "%s: can't allocate memory for ICC profile\n", progname);
|
|
fclose(icc_file);
|
|
return EXIT_FAILURE;
|
|
}
|
|
if (fread(icc_profile, icc_len, 1, icc_file) < 1) {
|
|
fprintf(stderr, "%s: can't read ICC profile from %s\n", progname,
|
|
icc_filename);
|
|
free(icc_profile);
|
|
fclose(icc_file);
|
|
return EXIT_FAILURE;
|
|
}
|
|
fclose(icc_file);
|
|
}
|
|
|
|
#ifdef CJPEG_FUZZER
|
|
jerr.error_exit = my_error_exit;
|
|
jerr.emit_message = my_emit_message;
|
|
if (setjmp(myerr.setjmp_buffer))
|
|
HANDLE_ERROR()
|
|
#endif
|
|
|
|
if (report) {
|
|
start_progress_monitor((j_common_ptr)&cinfo, &progress);
|
|
progress.report = report;
|
|
}
|
|
|
|
/* Figure out the input file format, and set up to read it. */
|
|
src_mgr = select_file_type(&cinfo, input_file);
|
|
src_mgr->input_file = input_file;
|
|
#ifdef CJPEG_FUZZER
|
|
src_mgr->max_pixels = 1048576;
|
|
#endif
|
|
|
|
/* Read the input file header to obtain file size & colorspace. */
|
|
(*src_mgr->start_input) (&cinfo, src_mgr);
|
|
|
|
/* Now that we know input colorspace, fix colorspace-dependent defaults */
|
|
jpeg_default_colorspace(&cinfo);
|
|
|
|
/* Adjust default compression parameters by re-parsing the options */
|
|
file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
|
|
|
|
/* Specify data destination for compression */
|
|
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
|
|
if (memdst)
|
|
jpeg_mem_dest(&cinfo, &outbuffer, &outsize);
|
|
else
|
|
#endif
|
|
jpeg_stdio_dest(&cinfo, output_file);
|
|
|
|
#ifdef CJPEG_FUZZER
|
|
if (setjmp(myerr.setjmp_buffer))
|
|
HANDLE_ERROR()
|
|
#endif
|
|
|
|
/* Start compressor */
|
|
jpeg_start_compress(&cinfo, TRUE);
|
|
|
|
if (icc_profile != NULL)
|
|
jpeg_write_icc_profile(&cinfo, icc_profile, (unsigned int)icc_len);
|
|
|
|
/* Process data */
|
|
while (cinfo.next_scanline < cinfo.image_height) {
|
|
num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr);
|
|
(void)jpeg_write_scanlines(&cinfo, src_mgr->buffer, num_scanlines);
|
|
}
|
|
|
|
/* Finish compression and release memory */
|
|
(*src_mgr->finish_input) (&cinfo, src_mgr);
|
|
jpeg_finish_compress(&cinfo);
|
|
jpeg_destroy_compress(&cinfo);
|
|
|
|
/* Close files, if we opened them */
|
|
if (input_file != stdin)
|
|
fclose(input_file);
|
|
if (output_file != stdout && output_file != NULL)
|
|
fclose(output_file);
|
|
|
|
if (report)
|
|
end_progress_monitor((j_common_ptr)&cinfo);
|
|
|
|
if (memdst) {
|
|
#ifndef CJPEG_FUZZER
|
|
fprintf(stderr, "Compressed size: %lu bytes\n", outsize);
|
|
#endif
|
|
free(outbuffer);
|
|
}
|
|
|
|
free(icc_profile);
|
|
|
|
/* All done. */
|
|
return (jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS);
|
|
}
|