/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h>
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#include <math.h>
-#include <vlc/vlc.h>
+#include <vlc_common.h>
+#include <vlc_plugin.h>
#include <vlc_aout.h>
/*****************************************************************************
aout_buffer_t *, aout_buffer_t * );
vlc_module_begin();
- set_description( _("Parametric Equalizer") );
- set_shortname( _("Parametric Equalizer" ) );
+ set_description( N_("Parametric Equalizer") );
+ set_shortname( N_("Parametric Equalizer" ) );
set_capability( "audio filter", 0 );
set_category( CAT_AUDIO );
set_subcategory( SUBCAT_AUDIO_AFILTER );
- add_float( "param-eq-lowf", 100, NULL, N_("Low freq (Hz)"),"", VLC_FALSE );
+ add_float( "param-eq-lowf", 100, NULL, N_("Low freq (Hz)"),"", false );
add_float_with_range( "param-eq-lowgain", 0, -20.0, 20.0, NULL,
- N_("Low freq gain (dB)"), "",VLC_FALSE );
- add_float( "param-eq-highf", 10000, NULL, N_("High freq (Hz)"),"", VLC_FALSE );
+ N_("Low freq gain (dB)"), "",false );
+ add_float( "param-eq-highf", 10000, NULL, N_("High freq (Hz)"),"", false );
add_float_with_range( "param-eq-highgain", 0, -20.0, 20.0, NULL,
- N_("High freq gain (dB)"),"",VLC_FALSE );
- add_float( "param-eq-f1", 300, NULL, N_("Freq 1 (Hz)"),"", VLC_FALSE );
+ N_("High freq gain (dB)"),"",false );
+ add_float( "param-eq-f1", 300, NULL, N_("Freq 1 (Hz)"),"", false );
add_float_with_range( "param-eq-gain1", 0, -20.0, 20.0, NULL,
- N_("Freq 1 gain (dB)"), "",VLC_FALSE );
+ N_("Freq 1 gain (dB)"), "",false );
add_float_with_range( "param-eq-q1", 3, 0.1, 100.0, NULL,
- N_("Freq 1 Q"), "",VLC_FALSE );
- add_float( "param-eq-f2", 1000, NULL, N_("Freq 2 (Hz)"),"", VLC_FALSE );
+ N_("Freq 1 Q"), "",false );
+ add_float( "param-eq-f2", 1000, NULL, N_("Freq 2 (Hz)"),"", false );
add_float_with_range( "param-eq-gain2", 0, -20.0, 20.0, NULL,
- N_("Freq 2 gain (dB)"),"",VLC_FALSE );
+ N_("Freq 2 gain (dB)"),"",false );
add_float_with_range( "param-eq-q2", 3, 0.1, 100.0, NULL,
- N_("Freq 2 Q"),"",VLC_FALSE );
- add_float( "param-eq-f3", 3000, NULL, N_("Freq 3 (Hz)"),"", VLC_FALSE );
+ N_("Freq 2 Q"),"",false );
+ add_float( "param-eq-f3", 3000, NULL, N_("Freq 3 (Hz)"),"", false );
add_float_with_range( "param-eq-gain3", 0, -20.0, 20.0, NULL,
- N_("Freq 3 gain (dB)"),"",VLC_FALSE );
+ N_("Freq 3 gain (dB)"),"",false );
add_float_with_range( "param-eq-q3", 3, 0.1, 100.0, NULL,
- N_("Freq 3 Q"),"",VLC_FALSE );
+ N_("Freq 3 Q"),"",false );
set_callbacks( Open, Close );
vlc_module_end();
float coeffs[5*5];
/* State */
float *p_state;
-
+
} aout_filter_sys_t;
{
aout_filter_t *p_filter = (aout_filter_t *)p_this;
aout_filter_sys_t *p_sys;
- vlc_bool_t b_fit = VLC_TRUE;
+ bool b_fit = true;
int i_samplerate;
if( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' ) ||
p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
{
- b_fit = VLC_FALSE;
+ b_fit = false;
p_filter->input.i_format = VLC_FOURCC('f','l','3','2');
p_filter->output.i_format = VLC_FOURCC('f','l','3','2');
msg_Warn( p_filter, "bad input or output format" );
}
if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
{
- b_fit = VLC_FALSE;
+ b_fit = false;
memcpy( &p_filter->output, &p_filter->input,
sizeof(audio_sample_format_t) );
msg_Warn( p_filter, "input and output formats are not similar" );
}
p_filter->pf_do_work = DoWork;
- p_filter->b_in_place = VLC_TRUE;
+ p_filter->b_in_place = true;
/* Allocate structure */
p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
p_sys->f_lowgain = config_GetFloat( p_this, "param-eq-lowgain");
p_sys->f_highf = config_GetFloat( p_this, "param-eq-highf");
p_sys->f_highgain = config_GetFloat( p_this, "param-eq-highgain");
-
+
p_sys->f_f1 = config_GetFloat( p_this, "param-eq-f1");
p_sys->f_Q1 = config_GetFloat( p_this, "param-eq-q1");
p_sys->f_gain1 = config_GetFloat( p_this, "param-eq-gain1");
-
+
p_sys->f_f2 = config_GetFloat( p_this, "param-eq-f2");
p_sys->f_Q2 = config_GetFloat( p_this, "param-eq-q2");
p_sys->f_gain2 = config_GetFloat( p_this, "param-eq-gain2");
p_sys->f_f3 = config_GetFloat( p_this, "param-eq-f3");
p_sys->f_Q3 = config_GetFloat( p_this, "param-eq-q3");
p_sys->f_gain3 = config_GetFloat( p_this, "param-eq-gain3");
-
+
i_samplerate = p_filter->input.i_rate;
CalcPeakEQCoeffs(p_sys->f_f1, p_sys->f_Q1, p_sys->f_gain1,
static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
{
+ VLC_UNUSED(p_aout);
p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
ProcessEQ( (float*)p_in_buf->p_buffer, (float*)p_out_buf->p_buffer,
- p_filter->p_sys->p_state,
+ p_filter->p_sys->p_state,
p_filter->input.i_channels, p_in_buf->i_nb_samples,
p_filter->p_sys->coeffs, 5 );
}
* coeffs[3] = a1
* coeffs[4] = a2
*
- * Equations taken from RBJ audio EQ cookbook
+ * Equations taken from RBJ audio EQ cookbook
* (http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt)
*/
static void CalcPeakEQCoeffs( float f0, float Q, float gainDB, float Fs,
float a0, a1, a2;
// Provide sane limits to avoid overflow
- if (Q < 0.1f) Q = 0.1f;
+ if (Q < 0.1f) Q = 0.1f;
if (Q > 100) Q = 100;
if (f0 > Fs/2*0.95f) f0 = Fs/2*0.95f;
if (gainDB < -40) gainDB = -40;
if (gainDB > 40) gainDB = 40;
-
+
A = pow(10, gainDB/40);
w0 = 2*3.141593f*f0/Fs;
alpha = sin(w0)/(2*Q);
-
+
b0 = 1 + alpha*A;
b1 = -2*cos(w0);
b2 = 1 - alpha*A;
a0 = 1 + alpha/A;
a1 = -2*cos(w0);
a2 = 1 - alpha/A;
-
+
// Store values to coeffs and normalize by 1/a0
coeffs[0] = b0/a0;
coeffs[1] = b1/a0;
* coeffs[3] = a1
* coeffs[4] = a2
*
- * Equations taken from RBJ audio EQ cookbook
+ * Equations taken from RBJ audio EQ cookbook
* (http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt)
*/
static void CalcShelfEQCoeffs( float f0, float slope, float gainDB, int high,
samples is not premultiplied by channels
size of coeffs is 5*eqCount
*/
-void ProcessEQ( float *src, float *dest, float *state,
- unsigned channels, unsigned samples, float *coeffs,
+void ProcessEQ( float *src, float *dest, float *state,
+ unsigned channels, unsigned samples, float *coeffs,
unsigned eqCount )
{
unsigned i, chn, eq;
projects / vlc / blobdiff