f2ec34de52
* libjpeg-turbo: (39 commits) Oops. Delete the duplicate copy of [lib]turbojpeg.dll in the binary directory when uninstalling the package. AltiVec SIMD implementation of sample conversion and integer quantization Document the fact that the AltiVec implementation uses the same modified algorithms as the SSE2 implementation Use intrinsics for loading/storing data in the DCT/IDCT functions. This has no effect on the performance of the aligned loads/stores, but it makes it more obvious what that code is doing. Using intrinsics for the unaligned stores in the inverse DCT functions increases overall decompression performance by 1-2%. AltiVec SIMD implementation of RGB-to-Grayscale color conversion Remove unneeded code; Make sure jccolor-altivec.o will be rebuilt if jccolext-altivec.c changes. AltiVec SIMD implementation of RGB-to-YCC color conversion Make test a phony target so things don't go haywire if there is a file named test.c in the current directory. Maintain the traditional order of the regression tests while allowing the TurboJPEG and libjpeg portions to be executed separately Make comments more consistent Add a "quicktest" pseudo-target, for those times when you just don't want to sit through 11 iterations of TJUnitTest. Cosmetic tweaks to the PowerPC SIMD stubs Split AltiVec algorithms into separate files for ease of maintenance; Rename constants using lowercase so they are not confused with macros Optimizations to the AltiVec DCT algorithms (pre-compute constants and combine multiply/add operations) AltiVec SIMD implementation of slow integer inverse DCT Use macros to allocate constants statically, rather than reading them from a table using vec_splat*(). This improves code readability and probably improves performance a bit as well. Swap the order of the IFAST and ISLOW FDCT functions so that it matches the order of the prototypes in jsimd.h and the stubs in jsimd_powerpc.c. Include ARMv8 binaries when generating a combined OS X/iOS package using 'make iosdmg' In the output of the configure script, indicate whether gas-preprocessor.pl is being used along with the assembler. Modify the ARM64 assembly file so that it uses only syntax that the clang assembler in XCode 5.x can understand. These changes should all be cosmetic in nature-- they do not change the meaning or readability of the code nor the ability to build it for Linux. Actually, the code is now more in compliance with the ARM64 programming manual. In addition to these changes, there were a couple of instructions that clang simply doesn't support, so gas-preprocessor.pl was modified so that it now converts those into equivalent instructions that clang can handle. ... Conflicts: BUILDING.txt ChangeLog.txt cjpeg.c jpegtran.c
631 lines
21 KiB
C
631 lines
21 KiB
C
/*
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* jpegtran.c
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*
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* This file was part of the Independent JPEG Group's software:
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* Copyright (C) 1995-2010, Thomas G. Lane, Guido Vollbeding.
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* libjpeg-turbo Modifications:
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* Copyright (C) 2010, 2014, D. R. Commander.
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* mozjpeg Modifications:
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* Copyright (C) 2014, Mozilla Corporation.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This file contains a command-line user interface for JPEG transcoding.
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* It is very similar to cjpeg.c, and partly to djpeg.c, but provides
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* lossless transcoding between different JPEG file formats. It also
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* provides some lossless and sort-of-lossless transformations of JPEG data.
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*/
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#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
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#include "transupp.h" /* Support routines for jpegtran */
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#include "jversion.h" /* for version message */
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#include "jconfigint.h"
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#ifdef USE_CCOMMAND /* command-line reader for Macintosh */
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#ifdef __MWERKS__
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#include <SIOUX.h> /* Metrowerks needs this */
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#include <console.h> /* ... and this */
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#endif
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#ifdef THINK_C
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#include <console.h> /* Think declares it here */
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#endif
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#endif
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/*
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* Argument-parsing code.
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* The switch parser is designed to be useful with DOS-style command line
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* syntax, ie, intermixed switches and file names, where only the switches
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* to the left of a given file name affect processing of that file.
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* The main program in this file doesn't actually use this capability...
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*/
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static const char * progname; /* program name for error messages */
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static char * outfilename; /* for -outfile switch */
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static JCOPY_OPTION copyoption; /* -copy switch */
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static jpeg_transform_info transformoption; /* image transformation options */
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boolean memsrc = FALSE; /* for -memsrc switch */
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#define INPUT_BUF_SIZE 4096
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LOCAL(void)
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usage (void)
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/* complain about bad command line */
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{
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fprintf(stderr, "usage: %s [switches] ", progname);
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#ifdef TWO_FILE_COMMANDLINE
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fprintf(stderr, "inputfile outputfile\n");
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#else
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fprintf(stderr, "[inputfile]\n");
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#endif
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fprintf(stderr, "Switches (names may be abbreviated):\n");
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fprintf(stderr, " -copy none Copy no extra markers from source file\n");
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fprintf(stderr, " -copy comments Copy only comment markers (default)\n");
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fprintf(stderr, " -copy all Copy all extra markers\n");
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#ifdef ENTROPY_OPT_SUPPORTED
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fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression, enabled by default)\n");
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#endif
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#ifdef C_PROGRESSIVE_SUPPORTED
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fprintf(stderr, " -progressive Create progressive JPEG file (enabled by default)\n");
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#endif
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fprintf(stderr, " -revert Revert to standard defaults (instead of mozjpeg defaults)\n");
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fprintf(stderr, " -fastcrush Disable progressive scan optimization\n");
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fprintf(stderr, "Switches for modifying the image:\n");
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#if TRANSFORMS_SUPPORTED
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fprintf(stderr, " -crop WxH+X+Y Crop to a rectangular subarea\n");
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fprintf(stderr, " -grayscale Reduce to grayscale (omit color data)\n");
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fprintf(stderr, " -flip [horizontal|vertical] Mirror image (left-right or top-bottom)\n");
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fprintf(stderr, " -perfect Fail if there is non-transformable edge blocks\n");
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fprintf(stderr, " -rotate [90|180|270] Rotate image (degrees clockwise)\n");
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#endif
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#if TRANSFORMS_SUPPORTED
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fprintf(stderr, " -transpose Transpose image\n");
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fprintf(stderr, " -transverse Transverse transpose image\n");
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fprintf(stderr, " -trim Drop non-transformable edge blocks\n");
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#endif
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fprintf(stderr, "Switches for advanced users:\n");
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#ifdef C_ARITH_CODING_SUPPORTED
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fprintf(stderr, " -arithmetic Use arithmetic coding\n");
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#endif
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fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n");
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fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n");
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fprintf(stderr, " -outfile name Specify name for output file\n");
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fprintf(stderr, " -verbose or -debug Emit debug output\n");
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fprintf(stderr, " -version Print version information and exit\n");
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fprintf(stderr, "Switches for wizards:\n");
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#ifdef C_MULTISCAN_FILES_SUPPORTED
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fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n");
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#endif
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exit(EXIT_FAILURE);
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}
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LOCAL(void)
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select_transform (JXFORM_CODE transform)
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/* Silly little routine to detect multiple transform options,
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* which we can't handle.
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*/
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{
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#if TRANSFORMS_SUPPORTED
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if (transformoption.transform == JXFORM_NONE ||
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transformoption.transform == transform) {
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transformoption.transform = transform;
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} else {
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fprintf(stderr, "%s: can only do one image transformation at a time\n",
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progname);
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usage();
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}
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#else
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fprintf(stderr, "%s: sorry, image transformation was not compiled\n",
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progname);
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exit(EXIT_FAILURE);
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#endif
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}
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LOCAL(int)
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parse_switches (j_compress_ptr cinfo, int argc, char **argv,
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int last_file_arg_seen, boolean for_real)
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/* Parse optional switches.
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* Returns argv[] index of first file-name argument (== argc if none).
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* Any file names with indexes <= last_file_arg_seen are ignored;
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* they have presumably been processed in a previous iteration.
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* (Pass 0 for last_file_arg_seen on the first or only iteration.)
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* for_real is FALSE on the first (dummy) pass; we may skip any expensive
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* processing.
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*/
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{
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int argn;
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char * arg;
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boolean simple_progressive;
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char * scansarg = NULL; /* saves -scans parm if any */
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/* Set up default JPEG parameters. */
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#ifdef C_PROGRESSIVE_SUPPORTED
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simple_progressive = cinfo->num_scans == 0 ? FALSE : TRUE;
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#else
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simple_progressive = FALSE;
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#endif
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outfilename = NULL;
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copyoption = JCOPYOPT_DEFAULT;
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transformoption.transform = JXFORM_NONE;
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transformoption.perfect = FALSE;
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transformoption.trim = FALSE;
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transformoption.force_grayscale = FALSE;
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transformoption.crop = FALSE;
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transformoption.slow_hflip = FALSE;
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cinfo->err->trace_level = 0;
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/* Scan command line options, adjust parameters */
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for (argn = 1; argn < argc; argn++) {
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arg = argv[argn];
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if (*arg != '-') {
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/* Not a switch, must be a file name argument */
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if (argn <= last_file_arg_seen) {
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outfilename = NULL; /* -outfile applies to just one input file */
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continue; /* ignore this name if previously processed */
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}
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break; /* else done parsing switches */
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}
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arg++; /* advance past switch marker character */
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if (keymatch(arg, "arithmetic", 1)) {
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/* Use arithmetic coding. */
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#ifdef C_ARITH_CODING_SUPPORTED
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cinfo->arith_code = TRUE;
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/* No table optimization required for AC */
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cinfo->optimize_coding = FALSE;
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#else
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fprintf(stderr, "%s: sorry, arithmetic coding not supported\n",
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progname);
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exit(EXIT_FAILURE);
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#endif
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} else if (keymatch(arg, "copy", 2)) {
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/* Select which extra markers to copy. */
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if (++argn >= argc) /* advance to next argument */
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usage();
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if (keymatch(argv[argn], "none", 1)) {
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copyoption = JCOPYOPT_NONE;
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} else if (keymatch(argv[argn], "comments", 1)) {
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copyoption = JCOPYOPT_COMMENTS;
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} else if (keymatch(argv[argn], "all", 1)) {
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copyoption = JCOPYOPT_ALL;
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} else
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usage();
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} else if (keymatch(arg, "crop", 2)) {
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/* Perform lossless cropping. */
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#if TRANSFORMS_SUPPORTED
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if (++argn >= argc) /* advance to next argument */
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usage();
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if (! jtransform_parse_crop_spec(&transformoption, argv[argn])) {
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fprintf(stderr, "%s: bogus -crop argument '%s'\n",
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progname, argv[argn]);
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exit(EXIT_FAILURE);
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}
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#else
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select_transform(JXFORM_NONE); /* force an error */
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#endif
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} else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
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/* Enable debug printouts. */
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/* On first -d, print version identification */
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static boolean printed_version = FALSE;
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if (! printed_version) {
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fprintf(stderr, "%s version %s (build %s)\n",
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PACKAGE_NAME, VERSION, BUILD);
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fprintf(stderr, "%s\n\n", JCOPYRIGHT);
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fprintf(stderr, "Emulating The Independent JPEG Group's software, version %s\n\n",
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JVERSION);
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printed_version = TRUE;
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}
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cinfo->err->trace_level++;
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} else if (keymatch(arg, "version", 4)) {
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fprintf(stderr, "%s version %s (build %s)\n",
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PACKAGE_NAME, VERSION, BUILD);
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exit(EXIT_SUCCESS);
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} else if (keymatch(arg, "flip", 1)) {
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/* Mirror left-right or top-bottom. */
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if (++argn >= argc) /* advance to next argument */
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usage();
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if (keymatch(argv[argn], "horizontal", 1))
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select_transform(JXFORM_FLIP_H);
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else if (keymatch(argv[argn], "vertical", 1))
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select_transform(JXFORM_FLIP_V);
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else
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usage();
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} else if (keymatch(arg, "fastcrush", 4)) {
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jpeg_c_set_bool_param(cinfo, JBOOLEAN_OPTIMIZE_SCANS, FALSE);
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} else if (keymatch(arg, "grayscale", 1) || keymatch(arg, "greyscale",1)) {
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/* Force to grayscale. */
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#if TRANSFORMS_SUPPORTED
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transformoption.force_grayscale = TRUE;
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#else
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select_transform(JXFORM_NONE); /* force an error */
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#endif
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} else if (keymatch(arg, "maxmemory", 3)) {
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/* Maximum memory in Kb (or Mb with 'm'). */
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long lval;
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char ch = 'x';
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if (++argn >= argc) /* advance to next argument */
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usage();
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if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
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usage();
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if (ch == 'm' || ch == 'M')
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lval *= 1000L;
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cinfo->mem->max_memory_to_use = lval * 1000L;
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} else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {
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/* Enable entropy parm optimization. */
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#ifdef ENTROPY_OPT_SUPPORTED
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cinfo->optimize_coding = TRUE;
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#else
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fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n",
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progname);
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exit(EXIT_FAILURE);
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#endif
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} else if (keymatch(arg, "outfile", 4)) {
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/* Set output file name. */
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if (++argn >= argc) /* advance to next argument */
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usage();
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outfilename = argv[argn]; /* save it away for later use */
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} else if (keymatch(arg, "perfect", 2)) {
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/* Fail if there is any partial edge MCUs that the transform can't
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* handle. */
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transformoption.perfect = TRUE;
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} else if (keymatch(arg, "progressive", 2)) {
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/* Select simple progressive mode. */
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#ifdef C_PROGRESSIVE_SUPPORTED
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simple_progressive = TRUE;
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/* We must postpone execution until num_components is known. */
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#else
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fprintf(stderr, "%s: sorry, progressive output was not compiled\n",
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progname);
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exit(EXIT_FAILURE);
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#endif
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} else if (keymatch(arg, "restart", 1)) {
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/* Restart interval in MCU rows (or in MCUs with 'b'). */
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long lval;
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char ch = 'x';
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if (++argn >= argc) /* advance to next argument */
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usage();
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if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
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usage();
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if (lval < 0 || lval > 65535L)
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usage();
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if (ch == 'b' || ch == 'B') {
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cinfo->restart_interval = (unsigned int) lval;
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cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */
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} else {
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cinfo->restart_in_rows = (int) lval;
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/* restart_interval will be computed during startup */
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}
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} else if (keymatch(arg, "revert", 3)) {
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/* revert to old JPEG default */
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jpeg_c_set_int_param(cinfo, JINT_COMPRESS_PROFILE, JCP_FASTEST);
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} else if (keymatch(arg, "rotate", 2)) {
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/* Rotate 90, 180, or 270 degrees (measured clockwise). */
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if (++argn >= argc) /* advance to next argument */
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usage();
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if (keymatch(argv[argn], "90", 2))
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select_transform(JXFORM_ROT_90);
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else if (keymatch(argv[argn], "180", 3))
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select_transform(JXFORM_ROT_180);
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else if (keymatch(argv[argn], "270", 3))
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select_transform(JXFORM_ROT_270);
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else
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usage();
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} else if (keymatch(arg, "scans", 1)) {
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/* Set scan script. */
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#ifdef C_MULTISCAN_FILES_SUPPORTED
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if (++argn >= argc) /* advance to next argument */
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usage();
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scansarg = argv[argn];
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/* We must postpone reading the file in case -progressive appears. */
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#else
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fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n",
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progname);
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exit(EXIT_FAILURE);
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#endif
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} else if (keymatch(arg, "transpose", 1)) {
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/* Transpose (across UL-to-LR axis). */
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select_transform(JXFORM_TRANSPOSE);
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} else if (keymatch(arg, "transverse", 6)) {
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/* Transverse transpose (across UR-to-LL axis). */
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select_transform(JXFORM_TRANSVERSE);
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} else if (keymatch(arg, "trim", 3)) {
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/* Trim off any partial edge MCUs that the transform can't handle. */
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transformoption.trim = TRUE;
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} else {
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usage(); /* bogus switch */
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}
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}
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/* Post-switch-scanning cleanup */
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if (for_real) {
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#ifdef C_PROGRESSIVE_SUPPORTED
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if (simple_progressive) /* process -progressive; -scans can override */
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jpeg_simple_progression(cinfo);
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#endif
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#ifdef C_MULTISCAN_FILES_SUPPORTED
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if (scansarg != NULL) /* process -scans if it was present */
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if (! read_scan_script(cinfo, scansarg))
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usage();
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#endif
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}
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return argn; /* return index of next arg (file name) */
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}
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/*
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* The main program.
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*/
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int
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main (int argc, char **argv)
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{
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struct jpeg_decompress_struct srcinfo;
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struct jpeg_compress_struct dstinfo;
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struct jpeg_error_mgr jsrcerr, jdsterr;
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#ifdef PROGRESS_REPORT
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struct cdjpeg_progress_mgr progress;
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#endif
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jvirt_barray_ptr * src_coef_arrays;
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jvirt_barray_ptr * dst_coef_arrays;
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int file_index;
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/* We assume all-in-memory processing and can therefore use only a
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* single file pointer for sequential input and output operation.
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*/
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FILE * fp;
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unsigned char *inbuffer = NULL;
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unsigned long insize = 0;
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unsigned char *outbuffer = NULL;
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unsigned long outsize = 0;
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/* On Mac, fetch a command line. */
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#ifdef USE_CCOMMAND
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argc = ccommand(&argv);
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#endif
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progname = argv[0];
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if (progname == NULL || progname[0] == 0)
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progname = "jpegtran"; /* in case C library doesn't provide it */
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/* Initialize the JPEG decompression object with default error handling. */
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srcinfo.err = jpeg_std_error(&jsrcerr);
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jpeg_create_decompress(&srcinfo);
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/* Initialize the JPEG compression object with default error handling. */
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dstinfo.err = jpeg_std_error(&jdsterr);
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jpeg_create_compress(&dstinfo);
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/* Scan command line to find file names.
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* It is convenient to use just one switch-parsing routine, but the switch
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* values read here are mostly ignored; we will rescan the switches after
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* opening the input file. Also note that most of the switches affect the
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* destination JPEG object, so we parse into that and then copy over what
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* needs to affects the source too.
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*/
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file_index = parse_switches(&dstinfo, argc, argv, 0, FALSE);
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jsrcerr.trace_level = jdsterr.trace_level;
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srcinfo.mem->max_memory_to_use = dstinfo.mem->max_memory_to_use;
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#ifdef TWO_FILE_COMMANDLINE
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|
/* Must have either -outfile switch or explicit output file name */
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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 ((fp = fopen(argv[file_index], READ_BINARY)) == NULL) {
|
|
fprintf(stderr, "%s: can't open %s for reading\n", progname, argv[file_index]);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
} else {
|
|
/* default input file is stdin */
|
|
fp = read_stdin();
|
|
}
|
|
|
|
#ifdef PROGRESS_REPORT
|
|
start_progress_monitor((j_common_ptr) &dstinfo, &progress);
|
|
#endif
|
|
|
|
/* Specify data source for decompression */
|
|
if (jpeg_c_int_param_supported(&dstinfo, JINT_COMPRESS_PROFILE) &&
|
|
jpeg_c_get_int_param(&dstinfo, JINT_COMPRESS_PROFILE)
|
|
== JCP_MAX_COMPRESSION)
|
|
memsrc = TRUE; /* needed to revert to original */
|
|
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
|
|
if (memsrc) {
|
|
size_t nbytes;
|
|
do {
|
|
inbuffer = (unsigned char *)realloc(inbuffer, insize + INPUT_BUF_SIZE);
|
|
if (inbuffer == NULL) {
|
|
fprintf(stderr, "%s: memory allocation failure\n", progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
nbytes = JFREAD(fp, &inbuffer[insize], INPUT_BUF_SIZE);
|
|
if (nbytes < INPUT_BUF_SIZE && ferror(fp)) {
|
|
if (file_index < argc)
|
|
fprintf(stderr, "%s: can't read from %s\n", progname,
|
|
argv[file_index]);
|
|
else
|
|
fprintf(stderr, "%s: can't read from stdin\n", progname);
|
|
}
|
|
insize += (unsigned long)nbytes;
|
|
} while (nbytes == INPUT_BUF_SIZE);
|
|
jpeg_mem_src(&srcinfo, inbuffer, insize);
|
|
} else
|
|
#endif
|
|
jpeg_stdio_src(&srcinfo, fp);
|
|
|
|
/* Enable saving of extra markers that we want to copy */
|
|
jcopy_markers_setup(&srcinfo, copyoption);
|
|
|
|
/* Read file header */
|
|
(void) jpeg_read_header(&srcinfo, TRUE);
|
|
|
|
/* Any space needed by a transform option must be requested before
|
|
* jpeg_read_coefficients so that memory allocation will be done right.
|
|
*/
|
|
#if TRANSFORMS_SUPPORTED
|
|
/* Fail right away if -perfect is given and transformation is not perfect.
|
|
*/
|
|
if (!jtransform_request_workspace(&srcinfo, &transformoption)) {
|
|
fprintf(stderr, "%s: transformation is not perfect\n", progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
#endif
|
|
|
|
/* Read source file as DCT coefficients */
|
|
src_coef_arrays = jpeg_read_coefficients(&srcinfo);
|
|
|
|
/* Initialize destination compression parameters from source values */
|
|
jpeg_copy_critical_parameters(&srcinfo, &dstinfo);
|
|
|
|
/* Adjust destination parameters if required by transform options;
|
|
* also find out which set of coefficient arrays will hold the output.
|
|
*/
|
|
#if TRANSFORMS_SUPPORTED
|
|
dst_coef_arrays = jtransform_adjust_parameters(&srcinfo, &dstinfo,
|
|
src_coef_arrays,
|
|
&transformoption);
|
|
#else
|
|
dst_coef_arrays = src_coef_arrays;
|
|
#endif
|
|
|
|
/* Close input file, if we opened it.
|
|
* Note: we assume that jpeg_read_coefficients consumed all input
|
|
* until JPEG_REACHED_EOI, and that jpeg_finish_decompress will
|
|
* only consume more while (! cinfo->inputctl->eoi_reached).
|
|
* We cannot call jpeg_finish_decompress here since we still need the
|
|
* virtual arrays allocated from the source object for processing.
|
|
*/
|
|
if (fp != stdin)
|
|
fclose(fp);
|
|
|
|
/* Open the output file. */
|
|
if (outfilename != NULL) {
|
|
if ((fp = fopen(outfilename, WRITE_BINARY)) == NULL) {
|
|
fprintf(stderr, "%s: can't open %s for writing\n", progname, outfilename);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
} else {
|
|
/* default output file is stdout */
|
|
fp = write_stdout();
|
|
}
|
|
|
|
/* Adjust default compression parameters by re-parsing the options */
|
|
file_index = parse_switches(&dstinfo, argc, argv, 0, TRUE);
|
|
|
|
/* Specify data destination for compression */
|
|
#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
|
|
if (jpeg_c_int_param_supported(&dstinfo, JINT_COMPRESS_PROFILE) &&
|
|
jpeg_c_get_int_param(&dstinfo, JINT_COMPRESS_PROFILE)
|
|
== JCP_MAX_COMPRESSION)
|
|
jpeg_mem_dest(&dstinfo, &outbuffer, &outsize);
|
|
else
|
|
#endif
|
|
jpeg_stdio_dest(&dstinfo, fp);
|
|
|
|
/* Start compressor (note no image data is actually written here) */
|
|
jpeg_write_coefficients(&dstinfo, dst_coef_arrays);
|
|
|
|
/* Copy to the output file any extra markers that we want to preserve */
|
|
jcopy_markers_execute(&srcinfo, &dstinfo, copyoption);
|
|
|
|
/* Execute image transformation, if any */
|
|
#if TRANSFORMS_SUPPORTED
|
|
jtransform_execute_transformation(&srcinfo, &dstinfo,
|
|
src_coef_arrays,
|
|
&transformoption);
|
|
#endif
|
|
|
|
/* Finish compression and release memory */
|
|
jpeg_finish_compress(&dstinfo);
|
|
|
|
if (jpeg_c_int_param_supported(&dstinfo, JINT_COMPRESS_PROFILE) &&
|
|
jpeg_c_get_int_param(&dstinfo, JINT_COMPRESS_PROFILE)
|
|
== JCP_MAX_COMPRESSION) {
|
|
size_t nbytes;
|
|
|
|
unsigned char *buffer = outbuffer;
|
|
unsigned long size = outsize;
|
|
if (insize < size) {
|
|
size = insize;
|
|
buffer = inbuffer;
|
|
}
|
|
|
|
nbytes = JFWRITE(fp, buffer, size);
|
|
if (nbytes < size && ferror(fp)) {
|
|
if (file_index < argc)
|
|
fprintf(stderr, "%s: can't write to %s\n", progname,
|
|
argv[file_index]);
|
|
else
|
|
fprintf(stderr, "%s: can't write to stdout\n", progname);
|
|
}
|
|
}
|
|
|
|
jpeg_destroy_compress(&dstinfo);
|
|
(void) jpeg_finish_decompress(&srcinfo);
|
|
jpeg_destroy_decompress(&srcinfo);
|
|
|
|
/* Close output file, if we opened it */
|
|
if (fp != stdout)
|
|
fclose(fp);
|
|
|
|
#ifdef PROGRESS_REPORT
|
|
end_progress_monitor((j_common_ptr) &dstinfo);
|
|
#endif
|
|
|
|
/* All done. */
|
|
exit(jsrcerr.num_warnings + jdsterr.num_warnings ?EXIT_WARNING:EXIT_SUCCESS);
|
|
return 0; /* suppress no-return-value warnings */
|
|
}
|