static void read_jpg_metadata(struct jpeg_decompress_struct *cinfo,
GP_DataStorage *storage)
{
jpeg_saved_marker_ptr marker;
GP_DataStorageAddInt(storage, NULL, "Width", cinfo->image_width);
GP_DataStorageAddInt(storage, NULL, "Height", cinfo->image_height);
GP_DataStorageAddInt(storage, NULL, "Channels", cinfo->num_components);
GP_DataStorageAddString(storage, NULL, "Color Space",
get_colorspace(cinfo->out_color_space));
for (marker = cinfo->marker_list; marker != NULL; marker = marker->next) {
switch (marker->marker) {
case JPEG_COM: {
//TODO: Is comment NULL terminated?
char buf[marker->data_length+1];
GP_DEBUG(3, "JPEG_COM comment block, size %u",
(unsigned int)marker->data_length);
memcpy(buf, marker->data, marker->data_length);
buf[marker->data_length] = '\0';
GP_DataStorageAddString(storage, NULL, "Comment", buf);
//GP_MetaDataCreateString(data, "comment", (void*)marker->data,
// marker->data_length, 1);
} break;
case JPEG_APP0:
GP_TODO("JFIF");
break;
case JPEG_APP0 + 1: {
GP_IO *io = GP_IOMem(marker->data, marker->data_length, NULL);
if (!io) {
GP_WARN("Failed to create MemIO");
return;
}
GP_ReadExif(io, storage);
GP_IOClose(io);
} break;
}
}
}
static void fill_metadata(opj_image_t *img, GP_DataStorage *storage)
{
unsigned int i;
GP_DataStorageAddInt(storage, NULL, "Width", img->x1 - img->x0);
GP_DataStorageAddInt(storage, NULL, "Height", img->y1 - img->y0);
GP_DataStorageAddString(storage, NULL, "Color Space",
color_space_name(img->color_space));
GP_DataStorageAddInt(storage, NULL, "Samples per Pixel", img->numcomps);
for (i = 0; i < img->numcomps; i++) {
char buf[32];
GP_DataNode *comp_node;
snprintf(buf, sizeof(buf), "Channel %u", i);
comp_node = GP_DataStorageAddDict(storage, NULL, buf);
GP_DataStorageAddInt(storage, comp_node, "Width", img->comps[i].w);
GP_DataStorageAddInt(storage, comp_node, "Height", img->comps[i].h);
GP_DataStorageAddInt(storage, comp_node, "Bits per Sample", img->comps[i].prec);
}
}
