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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* compareoutputengine.h
*
* Sat May 14 13:27:04 CEST 2016
* Copyright 2016 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include <sndfile.h>
#include <audiooutputengine.h>
class CompareOutputEngine
: public AudioOutputEngine
{
public:
CompareOutputEngine();
~CompareOutputEngine();
// based on AudioOutputEngine
bool init(const Channels& data) override;
void setParm(const std::string& parm, const std::string& value) override;
bool start() override;
void stop() override;
void pre(size_t nsamples) override;
void run(int ch, sample_t* samples, size_t nsamples) override;
void post(size_t nsamples) override;
size_t getSamplerate() const override;
bool isFreewheeling() const override;
private:
SF_INFO info;
SNDFILE* handle;
std::string file;
sample_t buffer[4096 * 16];
std::size_t diff_samples{0};
sample_t ref_buffer[sizeof(buffer) / sizeof(sample_t)];
size_t pos{0};
};
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