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/*
* Img2JPC Plugin for Ayttm - codec for jpg2000 images.
*/
#include "intl.h"
#ifdef __MINGW32__
#define __IN_PLUGIN__ 1
#endif
#include "plugin_api.h"
#include "image_window.h"
#include "mem_util.h"
#include "debug.h"
#include <jasper/jasper.h>
/*******************************************************************************
* Begin Module Code
******************************************************************************/
/* Module defines */
#ifndef USE_POSIX_DLOPEN
#define plugin_info img2jpc_LTX_plugin_info
#define module_version img2jpc_LTX_module_version
#endif
static int plugin_init();
static int plugin_finish();
/* Module Exports */
PLUGIN_INFO plugin_info = {
PLUGIN_FILTER,
"Img2JPC",
"Codec for JPG2000 images",
"$Revision: 1.10 $",
"$Date: 2009/09/17 12:04:58 $",
NULL,
plugin_init,
plugin_finish,
NULL,
NULL
};
/* End Module Exports */
unsigned int module_version()
{
return CORE_VERSION;
}
static unsigned char *img_2_jpg(const unsigned char *in_img, long *size);
static unsigned char *img_2_jpc(const unsigned char *in_img, long *size);
static unsigned char *(*old_img_2_jpg) (const unsigned char *, long *) = NULL;
static unsigned char *(*old_img_2_jpc) (const unsigned char *, long *) = NULL;
static int do_jpc_encoding = 0;
static int plugin_init()
{
input_list *il = g_new0(input_list, 1);
eb_debug(DBG_MOD, "img2jpc\n");
plugin_info.prefs = il;
il->widget.checkbox.value = &do_jpc_encoding;
il->name = "do_jpc_encoding";
il->label = _("Send JPEG2000 images (creates huge data transfers)");
il->type = EB_INPUT_CHECKBOX;
if (!jas_init()) {
old_img_2_jpg = image_2_jpg;
image_2_jpg = img_2_jpg;
old_img_2_jpc = image_2_jpc;
image_2_jpc = img_2_jpc;
}
return 0;
}
static int plugin_finish()
{
image_2_jpg = old_img_2_jpg;
image_2_jpc = old_img_2_jpc;
g_free(plugin_info.prefs);
return 0;
}
/*******************************************************************************
* End Module Code
******************************************************************************/
static unsigned char *img_2_img(const unsigned char *in_img, long *size,
int outfmt, const char *soutfmt, const char *enc_opts)
{
unsigned char *out_img = NULL;
jas_stream_t *in, *out;
jas_image_t *image;
int infmt;
/*
static int ctr;
char fn[100];
FILE *fp;
snprintf(fn, sizeof(fn), "ayttm-img-%03d.jpc", ctr++);
fp = fopen(fn, "wb");
if(fp) {
fwrite(in_img, 1, *size, fp);
fclose(fp);
}
*/
if (jas_init()) {
eb_debug(DBG_MOD, "Could not init jasper\n");
return ay_memdup(in_img, *size);
}
if (!(in = jas_stream_memopen((char *)in_img, *size))) {
eb_debug(DBG_MOD, "Could not open jasper input stream\n");
return ay_memdup(in_img, *size);
}
infmt = jas_image_getfmt(in);
eb_debug(DBG_MOD, "Got input image format: %d %s\n", infmt,
jas_image_fmttostr(infmt));
if (infmt <= 0)
return ay_memdup(in_img, *size);
if (!strcmp(jas_image_fmttostr(infmt), soutfmt)) {
/* image is already in correct format */
jas_stream_close(in);
return ay_memdup(in_img, *size);
}
if (!(image = jas_image_decode(in, infmt, NULL))) {
eb_debug(DBG_MOD, "Could not decode image format\n");
return ay_memdup(in_img, *size);
}
if (!(out = jas_stream_memopen((char *)out_img, 0))) {
eb_debug(DBG_MOD, "Could not open output stream\n");
return ay_memdup(in_img, *size);
}
eb_debug(DBG_MOD, "Encoding to format: %d %s\n", outfmt, soutfmt);
if ((jas_image_encode(image, out, outfmt, (char *)enc_opts))) {
eb_debug(DBG_MOD, "Could not encode image format\n");
return ay_memdup(in_img, *size);
}
jas_stream_flush(out);
*size = ((jas_stream_memobj_t *)out->obj_)->bufsize_;
eb_debug(DBG_MOD, "Encoded size is: %ld\n", *size);
jas_stream_close(in);
out_img = ay_memdup(((jas_stream_memobj_t *)out->obj_)->buf_, *size);
jas_stream_close(out);
jas_image_destroy(image);
return out_img;
}
static unsigned char *img_2_jpg(const unsigned char *in_img, long *size)
{
static int outfmt;
if (!outfmt)
outfmt = jas_image_strtofmt("jpg");
return img_2_img(in_img, size, outfmt, "jpg", NULL);
}
static unsigned char *img_2_jpc(const unsigned char *in_img, long *size)
{
static int outfmt;
if (!do_jpc_encoding)
return ay_memdup(in_img, *size);
if (!outfmt)
outfmt = jas_image_strtofmt("jpc");
return img_2_img(in_img, size, outfmt, "jpc", "rate=0.0219\nmode=real");
}
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