static int EqzInit( filter_t *p_filter, int i_rate )
{
filter_sys_t *p_sys = p_filter->p_sys;
eqz_config_t cfg;
int i, ch;
vlc_value_t val1, val2, val3;
vlc_object_t *p_aout = p_filter->p_parent;
int i_ret = VLC_ENOMEM;
bool b_vlcFreqs = var_InheritBool( p_aout, "equalizer-vlcfreqs" );
EqzCoeffs( i_rate, 1.0f, b_vlcFreqs, &cfg );
/* Create the static filter config */
p_sys->i_band = cfg.i_band;
p_sys->f_alpha = malloc( p_sys->i_band * sizeof(float) );
p_sys->f_beta = malloc( p_sys->i_band * sizeof(float) );
p_sys->f_gamma = malloc( p_sys->i_band * sizeof(float) );
if( !p_sys->f_alpha || !p_sys->f_beta || !p_sys->f_gamma )
goto error;
for( i = 0; i < p_sys->i_band; i++ )
{
p_sys->f_alpha[i] = cfg.band[i].f_alpha;
p_sys->f_beta[i] = cfg.band[i].f_beta;
p_sys->f_gamma[i] = cfg.band[i].f_gamma;
}
/* Filter dyn config */
p_sys->b_2eqz = false;
p_sys->f_gamp = 1.0f;
p_sys->f_amp = malloc( p_sys->i_band * sizeof(float) );
if( !p_sys->f_amp )
goto error;
for( i = 0; i < p_sys->i_band; i++ )
{
p_sys->f_amp[i] = 0.0f;
}
/* Filter state */
for( ch = 0; ch < 32; ch++ )
{
p_sys->x[ch][0] =
p_sys->x[ch][1] =
p_sys->x2[ch][0] =
p_sys->x2[ch][1] = 0.0f;
for( i = 0; i < p_sys->i_band; i++ )
{
p_sys->y[ch][i][0] =
p_sys->y[ch][i][1] =
p_sys->y2[ch][i][0] =
p_sys->y2[ch][i][1] = 0.0f;
}
}
p_sys->psz_newbands = NULL;
var_Create( p_aout, "equalizer-bands", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
var_Create( p_aout, "equalizer-preset", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
p_sys->b_2eqz = var_CreateGetBool( p_aout, "equalizer-2pass" );
var_Create( p_aout, "equalizer-preamp", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
/* Get initial values */
var_Get( p_aout, "equalizer-preset", &val1 );
var_Get( p_aout, "equalizer-bands", &val2 );
var_Get( p_aout, "equalizer-preamp", &val3 );
p_sys->b_first = true;
PresetCallback( VLC_OBJECT( p_aout ), NULL, val1, val1, p_sys );
BandsCallback( VLC_OBJECT( p_aout ), NULL, val2, val2, p_sys );
PreampCallback( VLC_OBJECT( p_aout ), NULL, val3, val3, p_sys );
p_sys->b_first = false;
free( val1.psz_string );
/* Exit if we have no preset and no bands value */
if (p_sys->psz_newbands == NULL && (!val2.psz_string || !*val2.psz_string))
{
msg_Err(p_filter, "No preset selected");
free( val2.psz_string );
free( p_sys->f_amp );
i_ret = VLC_EGENERIC;
goto error;
}
/* Register preset bands (for intf) if : */
/* We have no bands info --> the preset info must be given to the intf */
/* or The bands info matches the preset */
if( ( p_sys->psz_newbands && *(val2.psz_string) &&
strstr( p_sys->psz_newbands, val2.psz_string ) ) || !*val2.psz_string )
{
var_SetString( p_aout, "equalizer-bands", p_sys->psz_newbands );
if( p_sys->f_newpreamp == p_sys->f_gamp )
var_SetFloat( p_aout, "equalizer-preamp", p_sys->f_newpreamp );
}
free( val2.psz_string );
/* Add our own callbacks */
var_AddCallback( p_aout, "equalizer-preset", PresetCallback, p_sys );
var_AddCallback( p_aout, "equalizer-bands", BandsCallback, p_sys );
var_AddCallback( p_aout, "equalizer-preamp", PreampCallback, p_sys );
var_AddCallback( p_aout, "equalizer-2pass", TwoPassCallback, p_sys );
msg_Dbg( p_filter, "equalizer loaded for %d Hz with %d bands %d pass",
i_rate, p_sys->i_band, p_sys->b_2eqz ? 2 : 1 );
for( i = 0; i < p_sys->i_band; i++ )
{
msg_Dbg( p_filter, " %.2f Hz -> factor:%f alpha:%f beta:%f gamma:%f",
cfg.band[i].f_frequency, p_sys->f_amp[i],
p_sys->f_alpha[i], p_sys->f_beta[i], p_sys->f_gamma[i]);
}
return VLC_SUCCESS;
error:
free( p_sys->f_alpha );
free( p_sys->f_beta );
free( p_sys->f_gamma );
return i_ret;
}
static int EqzInit( aout_filter_t *p_filter, int i_rate )
{
aout_filter_sys_t *p_sys = p_filter->p_sys;
const eqz_config_t *p_cfg;
int i, ch;
vlc_value_t val1, val2, val3;
aout_instance_t *p_aout = (aout_instance_t *)p_filter->p_parent;
/* Select the config */
if( i_rate == 48000 )
{
p_cfg = &eqz_config_48000_10b;
}
else if( i_rate == 44100 )
{
p_cfg = &eqz_config_44100_10b;
}
else
{
/* TODO compute the coeffs on the fly */
msg_Err( p_filter, "unsupported rate" );
return VLC_EGENERIC;
}
/* Create the static filter config */
p_sys->i_band = p_cfg->i_band;
p_sys->f_alpha = malloc( p_sys->i_band * sizeof(float) );
p_sys->f_beta = malloc( p_sys->i_band * sizeof(float) );
p_sys->f_gamma = malloc( p_sys->i_band * sizeof(float) );
for( i = 0; i < p_sys->i_band; i++ )
{
p_sys->f_alpha[i] = p_cfg->band[i].f_alpha;
p_sys->f_beta[i] = p_cfg->band[i].f_beta;
p_sys->f_gamma[i] = p_cfg->band[i].f_gamma;
}
/* Filter dyn config */
p_sys->b_2eqz = VLC_FALSE;
p_sys->f_gamp = 1.0;
p_sys->f_amp = malloc( p_sys->i_band * sizeof(float) );
for( i = 0; i < p_sys->i_band; i++ )
{
p_sys->f_amp[i] = 0.0;
}
/* Filter state */
for( ch = 0; ch < 32; ch++ )
{
p_sys->x[ch][0] =
p_sys->x[ch][1] =
p_sys->x2[ch][0] =
p_sys->x2[ch][1] = 0.0;
for( i = 0; i < p_sys->i_band; i++ )
{
p_sys->y[ch][i][0] =
p_sys->y[ch][i][1] =
p_sys->y2[ch][i][0] =
p_sys->y2[ch][i][1] = 0.0;
}
}
var_CreateGetString( p_aout,"equalizer-bands" );
var_CreateGetString( p_aout, "equalizer-preset" );
p_sys->b_2eqz = var_CreateGetBool( p_aout, "equalizer-2pass" );
var_CreateGetFloat( p_aout, "equalizer-preamp" );
/* Get initial values */
var_Get( p_aout, "equalizer-preset", &val1 );
var_Get( p_aout, "equalizer-bands", &val2 );
var_Get( p_aout, "equalizer-preamp", &val3 );
p_sys->b_first = VLC_TRUE;
PresetCallback( VLC_OBJECT( p_aout ), NULL, val1, val1, p_sys );
BandsCallback( VLC_OBJECT( p_aout ), NULL, val2, val2, p_sys );
PreampCallback( VLC_OBJECT( p_aout ), NULL, val3, val3, p_sys );
p_sys->b_first = VLC_FALSE;
/* Register preset bands (for intf) if : */
/* We have no bands info --> the preset info must be given to the intf */
/* or The bands info matches the preset */
if (p_sys->psz_newbands == NULL)
{
msg_Err(p_filter, "No preset selected");
return (VLC_EGENERIC);
}
if( ( *(val2.psz_string) &&
strstr( p_sys->psz_newbands, val2.psz_string ) ) || !*val2.psz_string )
{
var_SetString( p_aout, "equalizer-bands", p_sys->psz_newbands );
var_SetFloat( p_aout, "equalizer-preamp", p_sys->f_newpreamp );
}
/* Add our own callbacks */
var_AddCallback( p_aout, "equalizer-preset", PresetCallback, p_sys );
var_AddCallback( p_aout, "equalizer-bands", BandsCallback, p_sys );
var_AddCallback( p_aout, "equalizer-preamp", PreampCallback, p_sys );
msg_Dbg( p_filter, "equalizer loaded for %d Hz with %d bands %d pass",
i_rate, p_sys->i_band, p_sys->b_2eqz ? 2 : 1 );
for( i = 0; i < p_sys->i_band; i++ )
{
msg_Dbg( p_filter, " %d Hz -> factor:%f alpha:%f beta:%f gamma:%f",
(int)p_cfg->band[i].f_frequency, p_sys->f_amp[i],
p_sys->f_alpha[i], p_sys->f_beta[i], p_sys->f_gamma[i]);
}
return VLC_SUCCESS;
}
