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/* IM 3 sample that returns information about a file.
Needs "im.lib".
Usage: im_info <file_name>
Example: im_info test.tif
*/
#include <im.h>
#include <im_util.h>
#include <im_binfile.h>
#include <im_format_jp2.h>
#include <im_format_avi.h>
#include <im_format_wmv.h>
#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
void PrintError(int error)
{
switch (error)
{
case IM_ERR_OPEN:
printf("Error Opening File.\n");
break;
case IM_ERR_MEM:
printf("Insuficient memory.\n");
break;
case IM_ERR_ACCESS:
printf("Error Accessing File.\n");
break;
case IM_ERR_DATA:
printf("Image type not Suported.\n");
break;
case IM_ERR_FORMAT:
printf("Invalid Format.\n");
break;
case IM_ERR_COMPRESS:
printf("Invalid or unsupported compression.\n");
break;
default:
printf("Unknown Error.\n");
}
}
int FindZero(imbyte* data, int count)
{
for (int i = 0; i < count; i++)
{
if (data[i] == 0)
return 1;
}
return 0;
}
char* AttribData2Str(const void* data, int data_type)
{
static char data_str[50] = "";
switch(data_type)
{
case IM_BYTE:
sprintf(data_str, "%3d", (int)(*((imbyte*)data)));
break;
case IM_USHORT:
sprintf(data_str, "%5d", (int)(*((imushort*)data)));
break;
case IM_INT:
sprintf(data_str, "%5d", *((int*)data));
break;
case IM_FLOAT:
sprintf(data_str, "%5.2f", (double)(*((float*)data)));
break;
case IM_CFLOAT:
{
float *c = (float*)data;
sprintf(data_str, "%5.2g, %5.2f", (double)*c, (double)*(c+1));
}
break;
}
return data_str;
}
char* GetSizeDesc(double *size)
{
char* size_desc;
if (*size < 1024)
size_desc = "b";
else
{
*size /= 1024;
if (*size < 1024)
size_desc = "Kb";
else
{
*size /= 1024;
size_desc = "Mb";
}
}
return size_desc;
}
unsigned long FileSize(const char* file_name)
{
imBinFile* bfile = imBinFileOpen(file_name);
if (!bfile) return 0;
unsigned long file_size = imBinFileSize(bfile);
imBinFileClose(bfile);
return file_size;
}
void PrintImageInfo(const char* file_name)
{
printf("IM Info\n");
printf(" File Name:\n %s\n", file_name);
int error;
imFile* ifile = imFileOpen(file_name, &error);
if (!ifile)
{
PrintError(error);
return;
}
double file_size = FileSize(file_name);
printf(" File Size: %.2f %s\n", file_size, GetSizeDesc(&file_size));
char format[10];
char compression[20];
int image_count;
imFileGetInfo(ifile, format, compression, &image_count);
char format_desc[50];
imFormatInfo(format, format_desc, NULL, NULL);
printf(" Format: %s - %s\n", format, format_desc);
printf(" Compression: %s\n", compression);
printf(" Image Count: %d\n", image_count);
for (int i = 0; i < image_count; i++)
{
int width, height, color_mode, data_type;
error = imFileReadImageInfo(ifile, i, &width, &height, &color_mode, &data_type);
if (error != IM_ERR_NONE)
{
PrintError(error);
imFileClose(ifile);
return;
}
printf(" Image #%d\n", i);
printf(" Width: %d\n", width);
printf(" Height: %d\n", height);
printf(" Color Space: %s\n", imColorModeSpaceName(color_mode));
printf(" Has Alpha: %s\n", imColorModeHasAlpha(color_mode)? "Yes": "No");
printf(" Is Packed: %s\n", imColorModeIsPacked(color_mode)? "Yes": "No");
printf(" Is Top Down: %s\n", imColorModeIsTopDown(color_mode)? "Yes": "No");
printf(" Data Type: %s\n", imDataTypeName(data_type));
double image_size = imImageDataSize(width, height, color_mode, data_type);
printf(" Data Size: %.2f %s\n", image_size, GetSizeDesc(&image_size));
char* attrib_list[50]; // should be dynamic allocated
int attrib_list_count;
imFileGetAttributeList(ifile, attrib_list, &attrib_list_count);
for (int a = 0; a < attrib_list_count; a++)
{
if (a == 0)
printf(" Attributes:\n");
int attrib_data_type, attrib_count;
const void* attrib_data = imFileGetAttribute(ifile, attrib_list[a], &attrib_data_type, &attrib_count);
if (attrib_count == 1)
printf(" %s: %s\n", attrib_list[a], AttribData2Str(attrib_data, attrib_data_type));
else if (attrib_data_type == IM_BYTE && FindZero((imbyte*)attrib_data, attrib_count))
printf(" %s: %s\n", attrib_list[a], attrib_data);
else
printf(" %s: %s %s ...\n", attrib_list[a], AttribData2Str(attrib_data, attrib_data_type), AttribData2Str((imbyte*)attrib_data + imDataTypeSize(attrib_data_type), attrib_data_type));
}
}
imFileClose(ifile);
}
int main(int argc, char* argv[])
{
// imFormatRegisterJP2();
// imFormatRegisterAVI();
// imFormatRegisterWMV();
if (argc < 2)
{
printf("Invalid number of arguments.\n");
return 0;
}
PrintImageInfo(argv[1]);
return 1;
}
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