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/*
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <libexif/exif-data.h>
#include <jpeglib.h>
#include "jpeg/transupp.h" /* Support routines for jpegtran */
#include "jpegtools.h"
#include "genthumbnail.h"
/* ---------------------------------------------------------------------- */
static void dump_exif(FILE *out, ExifData *ed)
{
const char *title, *value;
#ifdef HAVE_NEW_EXIF
char buffer[256];
#endif
ExifEntry *ee;
int tag,i;
for (i = 0; i < EXIF_IFD_COUNT; i++) {
fprintf(out," ifd %s\n", exif_ifd_get_name (i));
for (tag = 0; tag < 0xffff; tag++) {
title = exif_tag_get_title(tag);
if (!title)
continue;
ee = exif_content_get_entry (ed->ifd[i], tag);
if (NULL == ee)
continue;
#ifdef HAVE_NEW_EXIF
value = exif_entry_get_value(ee, buffer, sizeof(buffer));
#else
value = exif_entry_get_value(ee);
#endif
fprintf(out," 0x%04x %-30s %s\n", tag, title, value);
}
}
if (ed->data && ed->size)
fprintf(out," thumbnail\n %d bytes data\n", ed->size);
}
static int dump_file(FILE *out, char *filename)
{
ExifData *ed;
ed = exif_data_new_from_file (filename);
if (NULL == ed) {
fprintf(stderr,"%s: no EXIF data\n",filename);
return -1;
}
fprintf(out,"%s\n",filename);
dump_exif(out,ed);
fprintf(out,"--\n");
exif_data_unref (ed);
return 0;
}
/* ---------------------------------------------------------------------- */
#define THUMB_MAX 65536
static void
usage(FILE *fp, char *name)
{
char *h;
if (NULL != (h = strrchr(name, '/')))
name = h+1;
fprintf(fp,
"usage: %s [ options ] file\n"
"\n"
"transform options:\n"
" -a automatic (using exif orientation tag)\n"
" -9 rotate by 90 degrees\n"
" -1 rotate by 180 degrees\n"
" -2 rotate by 270 degrees\n"
" -f flip vertical\n"
" -F flip horizontal\n"
" -t transpose\n"
" -T transverse\n"
"\n"
" -nt don't rotate exif thumbnail\n"
" -ni don't rotate jpeg image\n"
" -no don't update the orientation tag\n"
"\n"
"other options:\n"
" -h print this text\n"
" -d dump exif data\n"
" -c <text> create/update comment\n"
" -g (re)generate thumbnail\n"
" -o <file> output file\n"
" -i change files inplace\n"
" -b create a backup file (with -i)\n"
" -p preserve timestamps (with -i)\n"
"\n"
"-- \n"
"Gerd Hoffmann <kraxel@bytesex.org> [SUSE Labs]\n",
name);
}
int main(int argc, char *argv[])
{
JXFORM_CODE transform = JXFORM_NONE;
unsigned char *comment = NULL;
unsigned char *outfile = NULL;
unsigned char *thumbnail = NULL;
int tsize = 0;
int inplace = 0;
unsigned int flags =
JFLAG_TRANSFORM_IMAGE |
JFLAG_TRANSFORM_THUMBNAIL |
JFLAG_UPDATE_ORIENTATION;
int dump = 0;
int i, c, rc;
for (;;) {
c = getopt(argc, argv, "hbpid912fFtTagc:o:n:");
if (c == -1)
break;
switch (c) {
case '9':
transform = JXFORM_ROT_90;
break;
case '1':
transform = JXFORM_ROT_180;
break;
case '2':
transform = JXFORM_ROT_270;
break;
case 'f':
transform = JXFORM_FLIP_V;
break;
case 'F':
transform = JXFORM_FLIP_H;
break;
case 't':
transform = JXFORM_TRANSPOSE;
break;
case 'T':
transform = JXFORM_TRANSVERSE;
break;
case 'a':
transform = -1; /* automagic */
break;
case 'n':
/* don't ... */
switch (optarg[0]) {
case 't':
flags &= ~JFLAG_TRANSFORM_THUMBNAIL;
break;
case 'i':
flags &= ~JFLAG_TRANSFORM_IMAGE;
break;
case 'o':
flags &= ~JFLAG_UPDATE_ORIENTATION;
break;
default:
fprintf(stderr,"unknown option -n%c\n",optarg[0]);
exit(1);
}
break;
case 'c':
flags |= JFLAG_UPDATE_COMMENT;
comment = optarg;
break;
case 'g':
flags |= JFLAG_UPDATE_THUMBNAIL;
break;
case 'o':
outfile = optarg;
break;
case 'd':
dump = 1;
break;
case 'b':
flags |= JFLAG_FILE_BACKUP;
break;
case 'p':
flags |= JFLAG_FILE_KEEP_TIME;
break;
case 'i':
inplace = 1;
break;
case 'h':
usage(stdout,argv[0]);
exit(0);
default:
usage(stderr,argv[0]);
exit(1);
}
}
/* sanity checks on the arguments */
if (optind == argc) {
fprintf(stderr,
"no image file specified (try -h for more info)\n");
exit(1);
}
/* read-only stuff */
if (dump) {
rc = 0;
for (i = optind; i < argc; i++) {
if (0 != dump_file(stdout,argv[i]))
rc = 1;
}
return rc;
}
/* r/w sanity checks */
if (NULL != outfile && optind+1 > argc) {
fprintf(stderr,
"when specifying a output file you can process\n"
"one file at a time only (try -h for more info).\n");
exit(1);
}
if (NULL == outfile && 0 == inplace) {
fprintf(stderr,
"you have to either specify a output file (-o <file>)\n"
"or enable inplace editing (-i). Try -h for more info.\n");
exit(1);
}
if (JXFORM_NONE == transform &&
!(flags & JFLAG_UPDATE_COMMENT) &&
!(flags & JFLAG_UPDATE_THUMBNAIL)) {
fprintf(stderr,
"What do you want to do today? Neither a new comment nor a\n"
"tranformation operation was specified (try -h for more info).\n");
exit(1);
}
/* do actual update work */
if (outfile) {
if (flags & JFLAG_UPDATE_THUMBNAIL) {
thumbnail = malloc(THUMB_MAX);
tsize = create_thumbnail(argv[optind],thumbnail,THUMB_MAX);
}
return jpeg_transform_files(argv[optind], outfile, transform,
comment, thumbnail, tsize, flags);
} else {
rc = 0;
for (i = optind; i < argc; i++) {
fprintf(stderr,"processing %s\n",argv[i]);
if (flags & JFLAG_UPDATE_THUMBNAIL) {
thumbnail = malloc(THUMB_MAX);
tsize = create_thumbnail(argv[i],thumbnail,THUMB_MAX);
}
if (0 != jpeg_transform_inplace(argv[i], transform, comment,
thumbnail, tsize, flags))
rc = 1;
}
return rc;
}
}
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