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/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009-2010 Alexey Yakovenko <waker@users.sourceforge.net>
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 2
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <string.h>
#include "../../deadbeef.h"
#include "supereq.h"
static DB_functions_t *deadbeef;
void *paramlist_alloc (void);
void paramlist_free (void *);
void equ_makeTable(float *lbc,float *rbc,void *param,float fs);
int equ_modifySamples(char *buf,int nsamples,int nch,int bps);
void equ_clearbuf(int bps,int srate);
void equ_init(int wb);
void equ_quit(void);
static float last_srate = 0;
static int last_nch = 0, last_bps = 0;
static float lbands[18] = {1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0};
static float rbands[18] = {1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0};
static void *paramsroot;
static int params_changed = 0;
static intptr_t tid = 0;
static uintptr_t mutex = 0;
int
supereq_plugin_start (void) {
// load bands from config
for (int i = 0; i < 18; i++) {
char key[100];
snprintf (key, sizeof (key), "eq.band%d", i);
lbands[i] = rbands[i] = deadbeef->conf_get_float (key, 1);
}
equ_init (14);
paramsroot = paramlist_alloc ();
last_srate = 44100;
last_nch = 2;
last_bps = 16;
equ_makeTable (lbands, rbands, paramsroot, last_srate);
equ_clearbuf (last_bps,last_srate);
mutex = deadbeef->mutex_create ();
return 0;
}
int
supereq_plugin_stop (void) {
if (tid) {
deadbeef->thread_join (tid);
deadbeef->mutex_free (mutex);
mutex = 0;
}
equ_quit ();
paramlist_free (paramsroot);
return 0;
}
void
supereq_regen_table_thread (void *param) {
void *params = paramlist_alloc ();
deadbeef->mutex_lock (mutex);
float lbands_copy[18];
float rbands_copy[18];
float srate = last_srate;
memcpy (lbands_copy, lbands, sizeof (lbands));
memcpy (rbands_copy, rbands, sizeof (rbands));
deadbeef->mutex_unlock (mutex);
equ_makeTable (lbands_copy, rbands_copy, params, srate);
deadbeef->mutex_lock (mutex);
paramlist_free (paramsroot);
paramsroot = params;
deadbeef->mutex_unlock (mutex);
tid = 0;
}
int
supereq_process_int16 (int16_t *samples, int nsamples, int nch, int bps, int srate) {
if ((nch != 1 && nch != 2) || (bps != 8 && bps != 16 && bps != 24)) return nsamples;
if (params_changed && !tid) {
tid = deadbeef->thread_start (supereq_regen_table_thread, NULL);
params_changed = 0;
}
if (last_srate != srate) {
deadbeef->mutex_lock (mutex);
equ_makeTable (lbands, rbands, paramsroot, srate);
last_srate = srate;
last_nch = nch;
last_bps = bps;
deadbeef->mutex_unlock (mutex);
equ_clearbuf(bps,srate);
}
else if (last_nch != nch || last_bps != bps) {
deadbeef->mutex_lock (mutex);
last_nch = nch;
last_bps = bps;
deadbeef->mutex_unlock (mutex);
equ_clearbuf(bps,srate);
}
equ_modifySamples((char *)samples,nsamples,nch,bps);
return nsamples;
}
float
supereq_get_band (int band) {
return lbands[band];
}
void
supereq_set_band (int band, float value) {
deadbeef->mutex_lock (mutex);
lbands[band] = rbands[band] = value;
deadbeef->mutex_unlock (mutex);
params_changed = 1;
char key[100];
snprintf (key, sizeof (key), "eq.band%d", band);
deadbeef->conf_set_float (key, value);
}
void
supereq_reset (void) {
deadbeef->mutex_lock (mutex);
equ_clearbuf(last_bps,last_srate);
deadbeef->mutex_unlock (mutex);
}
static DB_supereq_dsp_t plugin = {
.dsp.plugin.api_vmajor = DB_API_VERSION_MAJOR,
.dsp.plugin.api_vminor = DB_API_VERSION_MINOR,
.dsp.plugin.type = DB_PLUGIN_DSP,
.dsp.plugin.id = "supereq",
.dsp.plugin.name = "SuperEQ",
.dsp.plugin.descr = "equalizer plugin using SuperEQ library by Naoki Shibata",
.dsp.plugin.author = "Alexey Yakovenko",
.dsp.plugin.email = "waker@users.sourceforge.net",
.dsp.plugin.website = "http://deadbeef.sf.net",
.dsp.plugin.start = supereq_plugin_start,
.dsp.plugin.stop = supereq_plugin_stop,
// .dsp.plugin.configdialog = settings_dlg,
.dsp.process_int16 = supereq_process_int16,
.dsp.reset = supereq_reset,
.get_band = supereq_get_band,
.set_band = supereq_set_band,
};
DB_plugin_t *
supereq_load (DB_functions_t *api) {
deadbeef = api;
return DB_PLUGIN (&plugin);
}
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