;*********************************************************************
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; OM-SoX, (c) 2011-2013 Marlon Schumacher (CIRMMT/McGill University) *
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; http://sourceforge.net/projects/omsox/ *
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; *
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; Multichannel Audio Manipulation and Functional Batch Processing. *
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; DSP based on SoX - (c) C.Bagwell and Contributors *
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; http://sox.sourceforge.net/ *
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;*********************************************************************
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;
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;This program is free software; you can redistribute it and/or
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;modify it under the terms of the GNU General Public License
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;as published by the Free Software Foundation; either version 2
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;of the License, or (at your option) any later version.
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;
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;See file LICENSE for further informations on licensing terms.
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;
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;This program is distributed in the hope that it will be useful,
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;but WITHOUT ANY WARRANTY; without even the implied warranty of
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;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;GNU General Public License for more details.
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;
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;You should have received a copy of the GNU General Public License
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;along with this program; if not, write to the Free Software
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;Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,10 USA.
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;
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;Authors: M. Schumacher
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(in-package :om)
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; ==== SOX-REMIX ========================
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(defclass! sox-remix (sox-input)
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(
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(gain-matrix :accessor gain-matrix :initarg :gain-matrix :initform nil :documentation *sox-gain-matrix-doc*)
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(channel-matrix :accessor channel-matrix :initarg :channel-matrix :initform nil :documentation *sox-channel-matrix-doc*)
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)
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(:icon 19)
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(:documentation "Select and mix input audio channels into output audio channels.
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Each output channel is specified, in turn, by a given a list of contributing input channels and gain values.
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NB: this input class represents a mixing-matrix which allows for arbitrary combinations of input and output channels; it should not be confused with sox-mix (where multiple audio inputs are mixed together.")
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)
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; consider for the editor to have out-channels as rows, instead of columns (like in the description of mat-trans)
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(defmethod initialize-instance :after ((self sox-remix) &rest args)
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(when (sound self)
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(if (consp (sound self))
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(om-beep-msg "sox-remix expects a single sound (not a list)")
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(let* ((thesound (sound self))
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(thevolume (if (soundp thesound) (vol (sound self)) 100)))
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(unless (channel-matrix self) (setf (channel-matrix self) (list (arithm-ser 1 (sox-sound-channels thesound) 1)))) ;when there's no
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(setf (gain-matrix self) (sox-gain-matcher (or (gain-matrix self) (list (sox-vol-convert thevolume))) (channel-matrix self)))
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(sox-init-sound self 'atom)
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)
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)
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))
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