242 lines
6.7 KiB
C
242 lines
6.7 KiB
C
/* modify vips file header! - useful for setting resolution, coding...
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very dangerous!
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no way of setting non-used codes in variables like newxres
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so need flags to show new parameter has been set.. boring
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Copyright K.Martinez 30/6/93
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29/7/93 JC
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-format added
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- ==0 added to strcmp!
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17/11/94 JC
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- new header fields added
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21/10/04
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- more header updates
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22/8/05
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- less-stupid-ified
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20/9/05
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- rewritten with glib option parser, ready for xml options to go in
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /*HAVE_CONFIG_H*/
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#include <vips/intl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <locale.h>
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#include <vips/vips.h>
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#include <vips/internal.h>
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#include <vips/debug.h>
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/* We have to represent all header fields as char* so we can spot unset args
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* safely.
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*/
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static char *xsize = NULL;
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static char *ysize = NULL;
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static char *bands = NULL;
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static char *format = NULL;
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static char *interpretation = NULL;
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static char *coding = NULL;
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static char *xres = NULL;
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static char *yres = NULL;
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static char *xoffset = NULL;
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static char *yoffset = NULL;
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static char *endian = NULL;
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static gboolean setext = FALSE;
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static GOptionEntry entries[] = {
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{ "endian", 'n', 0, G_OPTION_ARG_STRING, &endian,
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N_( "tag file as big or little-endian" ), NULL },
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{ "width", 'w', 0, G_OPTION_ARG_STRING, &xsize,
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N_( "set width to N pixels" ), "N" },
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{ "height", 'h', 0, G_OPTION_ARG_STRING, &ysize,
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N_( "set height to N pixels" ), "N" },
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{ "bands", 'b', 0, G_OPTION_ARG_STRING, &bands,
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N_( "set Bands to N" ), "N" },
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{ "format", 'f', 0, G_OPTION_ARG_STRING, &format,
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N_( "set BandFmt to F (eg. uchar, float)" ), "F" },
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{ "interpretation", 'i', 0, G_OPTION_ARG_STRING, &interpretation,
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N_( "set interpretation to I (eg. xyz)" ), "I" },
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{ "coding", 'c', 0, G_OPTION_ARG_STRING, &coding,
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N_( "set Coding to C (eg. labq)" ), "C" },
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{ "xres", 'X', 0, G_OPTION_ARG_STRING, &xres,
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N_( "set Xres to R pixels/mm" ), "R" },
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{ "yres", 'Y', 0, G_OPTION_ARG_STRING, &yres,
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N_( "set Yres to R pixels/mm" ), "R" },
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{ "xoffset", 'u', 0, G_OPTION_ARG_STRING, &xoffset,
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N_( "set Xoffset to N pixels" ), "N" },
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{ "yoffset", 'v', 0, G_OPTION_ARG_STRING, &yoffset,
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N_( "set Yoffset to N pixels" ), "N" },
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{ "setext", 'e', 0, G_OPTION_ARG_NONE, &setext,
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N_( "replace extension block with stdin" ), NULL },
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{ "xsize", 'x', 0, G_OPTION_ARG_STRING, &xsize,
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N_( "set Xsize to N (deprecated, use width)" ), "N" },
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{ "ysize", 'y', 0, G_OPTION_ARG_STRING, &ysize,
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N_( "set Ysize to N (deprecated, use height)" ), "N" },
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{ "type", 't', 0, G_OPTION_ARG_STRING, &interpretation,
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N_( "set Type to T (deprecated, use interpretation)" ), "T" },
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{ NULL }
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};
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static void
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parse_pint( char *arg, int *out )
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{
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/* Might as well set an upper limit.
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*/
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*out = atoi( arg );
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if( *out <= 0 || *out > 1000000 )
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error_exit( _( "'%s' is not a positive integer" ), arg );
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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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GOptionContext *context;
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GError *error = NULL;
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IMAGE *im;
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unsigned char header[IM_SIZEOF_HEADER];
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if( im_init_world( argv[0] ) )
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error_exit( "%s", _( "unable to start VIPS" ) );
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textdomain( GETTEXT_PACKAGE );
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setlocale( LC_ALL, "" );
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context = g_option_context_new(
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_( "vipsedit - edit vips file header" ) );
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g_option_context_add_main_entries( context, entries, GETTEXT_PACKAGE );
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g_option_context_add_group( context, im_get_option_group() );
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if( !g_option_context_parse( context, &argc, &argv, &error ) ) {
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if( error ) {
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fprintf( stderr, "%s\n", error->message );
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g_error_free( error );
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}
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exit( -1 );
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}
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if( argc != 2 ) {
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fprintf( stderr, _( "usage: %s [OPTION...] vips-file\n" ),
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g_get_prgname() );
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exit( -1 );
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}
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if( !(im = im_init( argv[1] )) ||
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(im->fd = im__open_image_file( im->filename )) == -1 )
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error_exit( _( "could not open image %s" ), argv[1] );
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if( read( im->fd, header, IM_SIZEOF_HEADER ) != IM_SIZEOF_HEADER ||
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im__read_header_bytes( im, header ) )
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error_exit( _( "could not read VIPS header for %s" ),
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im->filename );
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if( endian ) {
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if( strcmp( endian, "little" ) == 0 )
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im->magic = VIPS_MAGIC_INTEL;
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else if( strcmp( endian, "big" ) == 0 )
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im->magic = VIPS_MAGIC_SPARC;
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else
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error_exit( _( "bad endian-ness %s, "
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"should be 'big' or 'little'" ), endian );
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}
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if( xsize )
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parse_pint( xsize, &im->Xsize );
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if( ysize )
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parse_pint( ysize, &im->Ysize );
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if( bands )
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parse_pint( bands, &im->Bands );
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if( format ) {
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VipsBandFormat f;
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if( (f = im_char2BandFmt( format )) < 0 )
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error_exit( _( "bad format %s" ), format );
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im->BandFmt = f;
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im->Bbits = im_bits_of_fmt( f );
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}
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if( interpretation ) {
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VipsInterpretation i;
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if( (i = im_char2Type( interpretation )) < 0 )
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error_exit( _( "bad interpretation %s" ),
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interpretation );
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im->Type = i;
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}
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if( coding ) {
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VipsCoding c;
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if( (c = im_char2Coding( coding )) < 0 )
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error_exit( _( "bad coding %s" ), coding );
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im->Coding = c;
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}
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if( xres )
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im->Xres = atof( xres );
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if( yres )
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im->Yres = atof( yres );
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if( xoffset )
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im->Xoffset = atoi( xoffset );
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if( yoffset )
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im->Yoffset = atoi( yoffset );
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if( lseek( im->fd, 0, SEEK_SET ) == (off_t) -1 )
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error_exit( _( "could not seek on %s" ), im->filename );
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if( im__write_header_bytes( im, header ) ||
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im__write( im->fd, header, IM_SIZEOF_HEADER ) )
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error_exit( _( "could not write to %s" ), im->filename );
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if( setext ) {
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char *xml;
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size_t size;
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if( !(xml = im__file_read( stdin, "stdin", &size )) )
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error_exit( "%s", _( "could not get ext data" ) );
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/* Strip trailing whitespace ... we can get stray \n at the
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* end, eg. "echo | editvips --setext fred.v".
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*/
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while( size > 0 && isspace( xml[size - 1] ) )
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size -= 1;
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if( im__write_extension_block( im, xml, size ) )
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error_exit( "%s", _( "could not set extension" ) );
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im_free( xml );
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}
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im_close( im );
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vips_shutdown();
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return( 0 );
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}
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