function outsig=operatoradj(Op,insig);
%OPERATORADJ Apply the adjoint of an operator
% Usage: c=operatoradj(Op,f);
%
% c=OPERATORADJ(Op,f) applies the adjoint operator of the operator Op*
% to the input signal f. The operator object Op must have been
% created using OPERATORNEW.
%
% If f is a matrix, the transform will be applied along the columns
% of f. If f is an N-D array, the transform will be applied along
% the first non-singleton dimension.
%
% See also: operatornew, operator, ioperator
%
% Url: http://ltfat.github.io/doc/operators/operatoradj.html
% Copyright (C) 2005-2023 Peter L. Soendergaard <peter@sonderport.dk> and others.
% This file is part of LTFAT version 2.6.0
%
% This program is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program. If not, see <http://www.gnu.org/licenses/>.
if nargin<2
error('%s: Too few input parameters.',upper(mfilename));
end;
if ~isstruct(Op)
error('%s: First argument must be a operator definition structure.',upper(mfilename));
end;
switch(Op.type)
case 'framemul'
outsig=framemuladj(insig,Op.Fa,Op.Fs,Op.s);
case 'spread'
outsig=spreadadj(insig,Op.s);
end;