int main(int argc, const char *argv[])
{
tiff_t *fp;
TIFF_STATUS ret;
tiff_off_t ifd_off;
tiff_ifd_t *ifd;
tiff_tag_t *subifd;
int subifd_count = 0;
int subifd_type = 0;
uint32_t *subifds = NULL;
int i;
if (argc < 2) {
printf("insufficient arguments.\n");
return -1;
}
ret = tiff_open(&fp, argv[1], "r");
if (ret != TIFF_OK) {
printf("file could not be openened: %d\n", ret);
return -1;
}
tiff_get_base_ifd_offset(fp, &ifd_off);
do {
tiff_read_ifd(fp, ifd_off, &ifd);
display_ifd(fp, ifd);
read_ifd(fp, ifd, TIFF_TAG_SUBIFD);
read_ifd(fp, ifd, TIFF_TAG_EXIFIFD);
tiff_get_next_ifd_offset(fp, ifd, &ifd_off);
tiff_free_ifd(fp, ifd);
} while (ifd_off != 0);
tiff_close(fp);
return 0;
}
int jxr_read_image_container(jxr_container_t container, FILE*fd)
{
unsigned char buf[4];
size_t rc;
uint32_t ifd_off;
rc = fread(buf, 1, 4, fd);
if (rc < 4)
return JXR_EC_BADMAGIC;
if (buf[0] != 0x49) return JXR_EC_BADMAGIC;
if (buf[1] != 0x49) return JXR_EC_BADMAGIC;
if (buf[2] != 0xbc) return JXR_EC_BADMAGIC;
if (buf[3] > 0x01) return JXR_EC_BADMAGIC; /* Version. */
rc = fread(buf, 1, 4, fd);
if (rc != 4) return JXR_EC_IO;
ifd_off = (buf[3] << 24) + (buf[2]<<16) + (buf[1]<<8) + (buf[0]<<0);
container->image_count = 0;
while (ifd_off != 0) {
uint32_t ifd_next;
container->image_count += 1;
container->table_cnt = (unsigned*)realloc(container->table_cnt,
container->image_count * sizeof(unsigned));
container->table = (struct ifd_table**) realloc(container->table,
container->image_count * sizeof(struct ifd_table*));
if (ifd_off & 0x1) return JXR_EC_IO;
rc = fseek(fd, ifd_off, SEEK_SET);
rc = read_ifd(container, fd, container->image_count-1, &ifd_next);
if (rc < 0) return (int) rc;
ifd_off = ifd_next;
}
return 0;
}
void read_E1_header(FILE *fp, unsigned short size)
{
printf(" E1 Header\n");
/*
* Exif Header
*/
char exif_hdr[6];
fread(exif_hdr, sizeof(exif_hdr), 1, fp);
printf(" %c\n", exif_hdr[0]);
/*
* TIFF Header
*/
tiff_offset = ftell(fp);
unsigned char tiff_hdr[8];
fread(tiff_hdr, sizeof(tiff_hdr), 1, fp);
if (tiff_hdr[0] == 'M') {
printf(" Motorola align\n");
} else if (tiff_hdr[0] == 'I') {
printf(" Intel align\n");
} else {
printf(" UNKNOWN align\n");
}
unsigned int ifd_offset = (tiff_hdr[4]<<24)
| (tiff_hdr[5]<<16)
| (tiff_hdr[6]<<8)
| (tiff_hdr[7]);
printf(" IFD Offset = %d\n", ifd_offset);
/*
* IFD
*/
while (ifd_offset != 0) {
ifd_offset = read_ifd(fp, ifd_offset + tiff_offset);
}
}
