case 2: aspect_ratio = 1.600 / ((double)720/576); break; //16:10
//case 3: aspect_ratio = 1.250 / ((double)720/576); break; //5:4
default: aspect_ratio = 1.333 / ((double)720/576); //4:3
case 2: aspect_ratio = 1.600 / ((double)720/576); break; //16:10
//case 3: aspect_ratio = 1.250 / ((double)720/576); break; //5:4
default: aspect_ratio = 1.333 / ((double)720/576); //4:3