vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
+ VLC_UNUSED(p_this); VLC_UNUSED(oldval);
filter_sys_t *p_sys = (filter_sys_t *)p_data;
if( !strcmp( psz_var, FILTER_PREFIX "sigma" ) )
p_sys->f_sigma = __MIN( 2., __MAX( 0., newval.f_float ) );