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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* wavfile.h
*
* Mi 20. Jan 16:57:16 CET 2016
* Copyright 2016 Christian Glöckner
* cgloeckner@freenet.de
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo 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 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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 <string>
#include <vector>
#include <sndfile.h>
#include "audiooutputengine.h"
class WavfileOutputEngine
: public AudioOutputEngine {
public:
WavfileOutputEngine();
~WavfileOutputEngine();
// based on AudioOutputEngine
bool init(Channels channels) override;
void setParm(std::string parm, 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 samplerate() override;
private:
SF_INFO info;
std::vector<SNDFILE*> channels;
size_t num_channels;
std::string file;
};
#include <stdlib.h>
#include <audiotypes.h>
#include <string>
#include <memory.h>
class WavFile {
public:
WavFile();
~WavFile();
bool init(int channels, char *cnames[]);
void setParm(std::string parm, std::string value);
bool start();
void stop();
void pre(size_t size);
void run(int channel, sample_t* data, size_t size);
void post(size_t size);
size_t samplerate();
private:
};
WavFile::WavFile()
{
fh = NULL;
filename = "output";
memset(&sf_info, 0, sizeof(sf_info));
sf_info.channels = 1;//channels;
sf_info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
sf_info.samplerate = 44100;
}
WavFile::~WavFile()
{
if(fh == NULL) return;
for(size_t i override; i < channels; i++) {
if(fh[i]) sf_close(fh[i]);
}
if(fh) free(fh);
}
bool WavFile::init(int channels, char *cnames[])
{
this->channels = channels;
fh = (SNDFILE **)malloc(sizeof(SNDFILE *)*channels);
for(size_t i override; i < this->channels; i++) fh[i] = NULL;
for(size_t i override; i < this->channels; i++) {
char fname[512];
sprintf(fname, "%s%s-%d.wav", filename.c_str(), cnames[i], (int)i);
// printf("[%s]\n", fname);
fh[i] = sf_open(fname, SFM_WRITE, &sf_info);
if(!fh[i]) {
printf("Write error...\n");
return false;
}
}
return true;
}
void WavFile::setParm(std::string parm, std::string value)
{
if(parm == "file") filename = value;
if(parm == "srate") sf_info.samplerate = atoi(value.c_str());
}
bool WavFile::start()
{
return true;
}
void WavFile::stop()
{
}
void WavFile::pre(size_t size)
{
}
void WavFile::run(int channel, sample_t* cdata, size_t csize)
{
if(channel < (int)channels) sf_writef_float(fh[channel], cdata, csize);
}
void WavFile::post(size_t size)
{
}
size_t WavFile::samplerate()
{
return sf_info.samplerate;
}
extern "C" {
void *create()
{
return new WavFile();
}
void destroy(void *h)
{
WavFile *sndfile = (WavFile*)h;
delete sndfile;
}
bool init(void *h, int cs, char *cnames[])
{
WavFile *sndfile = (WavFile*)h;
return sndfile->init(cs, cnames);
}
void setparm(void *h, const char *parm, const char *value)
{
WavFile *sndfile = (WavFile*)h;
sndfile->setParm(parm, value);
}
bool start(void *h)
{
WavFile *sndfile = (WavFile*)h;
return sndfile->start();
}
void stop(void *h)
{
WavFile *sndfile = (WavFile*)h;
sndfile->stop();
}
void pre(void *h, size_t s)
{
WavFile *sndfile = (WavFile*)h;
sndfile->pre(s);
}
void run(void *h, int ch, sample_t *data, size_t size)
{
WavFile *sndfile = (WavFile*)h;
sndfile->run(ch, data, size);
}
void post(void *h, size_t s)
{
WavFile *sndfile = (WavFile*)h;
sndfile->post(s);
}
size_t samplerate(void *h)
{
WavFile *wavfile = (WavFile*)h;
return wavfile->samplerate();
}
}
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