You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: vl_srmd_matlab.m
    path of file: ./repos/SRMD/TrainingCodes/utilities
    
    the code of the file until where you have to start completion: function res = vl_srmd_matlab(net, input)

%% If you did not install the matconvnet package, you can use this for testing.

global degpar;
n = numel(net.layers);
res = struct('x', cell(1,n+1));
res(1).x = input;

for i = 1 : n
    l = net.layers{i};
    switch l.type
        
        case 'conv'
            disp(['Processing ... ',int2str(i),'/',int2str(n)]);

    
function res = vl_srmd_matlab(net, input)

%% If you did not install the matconvnet package, you can use this for testing.

global degpar;
n = numel(net.layers);
res = struct('x', cell(1,n+1));
res(1).x = input;

for i = 1 : n
    l = net.layers{i};
    switch l.type
        
        case 'conv'
            disp(['Processing ... ',int2str(i),'/',int2str(n)]);
            for noutmaps = 1 : size(l.weights{1},4)
                z = zeros(size(res(i).x,1),size(res(i).x,2),'single');
                for ninmaps = 1 : size(res(i).x,3)
                    z = z + convn(res(i).x(:,:,ninmaps), rot90(l.weights{1}(:,:,ninmaps,noutmaps),2),'same'); % 180 degree rotation for kernel
                end