Mac Forum / Programming / Mac Programming / September 2007

HI, I've been trying to do a batch converter for images. The problem
is the memory is not being released properly. When the for ends the
memory is ok, but during the for it continues increasing. I have a
function with a for loop:
    for(count=0;count<cant;count++)
    {
        path=[datos objectAtIndex:count];
        save_name=[NSString stringWithFormat:
                @"image_%04d.jpg",count+1];
        output=[[batch_outdir stringValue]
stringByAppendingPathComponent:save_name];
        [self convert:path path_out:output format:NSJPEGFileType quality:
0.3];
    }

and then the conversion function

-(void)convert:(NSString*)path_in path_out:(NSString*)path_out format:
(NSBitmapImageFileType)type quality:(float)q
{
    NSDictionary *d=[NSDictionary dictionaryWithObject:
                        [NSNumber numberWithFloat:q]
                        forKey:NSImageCompressionFactor];
    NSImage    *tmp_img;
    NSBitmapImageRep *b;
    NSData *data;

    tmp_img=[[NSImage alloc] initWithContentsOfFile:path_in];
    b=[NSBitmapImageRep imageRepWithData:[tmp_img TIFFRepresentation]];
    [tmp_img release];

    data=[b representationUsingType:tipo properties:d];
    [data writeToFile:path_out atomically:TRUE];
}