Update CZPlayer

3rdParty/equalizer/eq.cpp

@@ -0,0 +1,69 @@
+/*
+ *   PCM time-domain equalizer
+ *
+ *   Copyright (C) 2002-2006  Felipe Rivera <liebremx at 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *   $Id: eq.c,v 1.12 2006/01/15 00:13:49 liebremx Exp $
+ */
+#include "iir.h"
+#include <stdio.h>
+#include <string.h>
+
+#include <math.h>
+#include "eq.h"
+
+static bool on = false;
+void   init_equliazer(int nBand)
+{
+	if(nBand != 0 && nBand < EQ_MAX_BANDS)
+	{
+		//nBand = nBand;
+	}
+	else
+	{
+		nBand = 10;
+	}
+    init_iir(nBand);
+}
+
+void   uninit_equliazer()
+{
+	clean_history();
+}
+
+
+void set_eq_value(float value, int index, int chn)
+{
+    /* Map the gain and preamp values */
+    if (index >= 0)
+	{
+        set_gain(index, chn, 2.5220207857061455181125E-01 * exp(8.0178361802353992349168E-02 * value) - 2.5220207852836562523180E-01 , value);
+	}
+    else
+	{
+        /* -12dB .. 12dB mapping */
+        set_preamp(chn, 9.9999946497217584440165E-01 * exp(6.9314738656671842642609E-02 * value) + 3.7119444716771825623636E-07);
+	}
+}
+
+/* 
+ * The main stuff
+ */
+int do_equliazer(short * d, int length, int srate, int nch)
+{
+    return iir(d, length, srate, nch);
+}

3rdParty/equalizer/eq.h

@@ -0,0 +1,34 @@
+/*
+ *   PCM time-domain equalizer
+ *
+ *   Copyright (C) 2002  Felipe Rivera <liebremx at users.sourceforge.net>
+ *
+ *   19.08.2002 Initial release for XMMS
+ *
+ *   
+ *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *   $Id: eq.h,v 1.6 2006/01/15 00:16:08 liebremx Exp $
+ */
+#ifndef EQ_H
+#define EQ_H
+void   init_equliazer(int nBand = 0 );
+void   uninit_equliazer() ; 
+void   set_eq_value(float value, int index, int chn);
+int    do_equliazer(short * d, int length, int srate, int nch);
+int    get_eq_band_count();
+float  get_eq_value(int index , int chn);
+
+#endif

3rdParty/equalizer/iir.h

@@ -0,0 +1,80 @@
+/*
+ *   PCM time-domain equalizer
+ *
+ *   Copyright (C) 2002-2006  Felipe Rivera <liebremx at 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *   $Id: iir.h,v 1.13 2006/01/15 00:26:32 liebremx Exp $
+ */
+#ifndef IIR_H
+#define IIR_H
+
+#include "iir_cfs.h"
+
+/*
+ * Flush-to-zero to avoid flooding the CPU with underflow exceptions 
+ */
+#ifdef SSE_MATH
+#define FTZ 0x8000
+#define FTZ_ON { \
+    unsigned int mxcsr; \
+  __asm__  __volatile__ ("stmxcsr %0" : "=m" (*&mxcsr)); \
+  mxcsr |= FTZ; \
+  __asm__  __volatile__ ("ldmxcsr %0" : : "m" (*&mxcsr)); \
+}
+#define FTZ_OFF { \
+    unsigned int mxcsr; \
+  __asm__  __volatile__ ("stmxcsr %0" : "=m" (*&mxcsr)); \
+  mxcsr &= ~FTZ; \
+  __asm__  __volatile__ ("ldmxcsr %0" : : "m" (*&mxcsr)); \
+}
+#else
+#define FTZ_ON
+#define FTZ_OFF
+#endif
+
+
+
+typedef double sample_t;
+typedef sample_t level_t;
+
+/* Max bands supported by the code
+FIXME: 31 bands processing IS HARD ON THE PROCESSOR
+On a PIII@900Mhz I got ~45% of CPU usage
+Have to improve the filter implementation
+Got it down to ~20% for 31 Bands
+Still MMX/3DNow!/SSE whatever, can bring it down */
+#define EQ_MAX_BANDS 32
+/* Number of channels (Stereo) */
+#define EQ_CHANNELS 2
+
+#define  EXTRA_FILTER true
+
+/*
+ * Function prototypes
+ */
+void init_iir(int nBand);
+void clean_history();
+void set_gain(int index, int chn, double val , float rawValue);
+void set_preamp(int chn, double val);
+int  iir(short * d, int length, int srate, int nch);
+//extern sIIRCoefficients *iir_cf;
+
+
+
+
+#endif /* #define IIR_H */
+