int best_colormodel = file->get_best_colormodel(vconfig->driver, vstream);
if( BC_CModels::is_yuv(best_colormodel) == BC_CModels::is_yuv(colormodel) )
colormodel = best_colormodel;
int best_colormodel = file->get_best_colormodel(vconfig->driver, vstream);
if( BC_CModels::is_yuv(best_colormodel) == BC_CModels::is_yuv(colormodel) )
colormodel = best_colormodel;