76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
// ------------------------------------------------------------------------
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// stamp-ctrl.cpp: Controller sources that analyze audio stamps
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// and produce control data.
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// Copyright (C) 2000,2001,2008 Kai Vehmanen
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//
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// Attributes:
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// eca-style-version: 3 (see Ecasound Programmer's Guide)
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//
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// This program is fre software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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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 USA
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// ------------------------------------------------------------------------
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#include "samplebuffer_functions.h"
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#include "stamp-ctrl.h"
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VOLUME_ANALYZE_CONTROLLER::VOLUME_ANALYZE_CONTROLLER(void)
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{
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}
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CONTROLLER_SOURCE::parameter_t VOLUME_ANALYZE_CONTROLLER::value(double pos)
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{
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parameter_t v = 0.0f;
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fetch_stamp(&sbuf_rep);
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if (rms_mode_rep != 0)
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v = SAMPLE_BUFFER_FUNCTIONS::RMS_volume(sbuf_rep);
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else
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v = SAMPLE_BUFFER_FUNCTIONS::average_amplitude(sbuf_rep);
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if (!(v > 0.0f)) v = 0.0f;
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// cerr << "(volume-analyze-ctrl) Fetches a sbuf with value " << v << endl;
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return v;
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}
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void VOLUME_ANALYZE_CONTROLLER::init(void)
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{
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}
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void VOLUME_ANALYZE_CONTROLLER::set_parameter(int param, CONTROLLER_SOURCE::parameter_t value)
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{
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switch (param) {
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case 1:
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set_id(static_cast<int>(value));
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break;
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case 2:
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rms_mode_rep = static_cast<int>(value);
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break;
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}
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}
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CONTROLLER_SOURCE::parameter_t VOLUME_ANALYZE_CONTROLLER::get_parameter(int param) const
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{
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switch (param) {
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case 1:
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return static_cast<parameter_t>(id());
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case 2:
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return static_cast<parameter_t>(rms_mode_rep);
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}
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return 0.0f;
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}
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