* Don't use the bandlimited resampler for downsampling (skew resampling for...

* Don't use the bandlimited resampler for downsampling (skew resampling for instance). The resampler doesn't have a low pass filter? This closes #256
 - on a side note, it also seems to fix the stack corruption (resulting in deadlock) issues i was having with audio output that was being resampled by auhal.

modules/audio_filter/resampler/bandlimited.c

@@ -124,6 +124,12 @@ static int Create( vlc_object_t *p_this )
     /* Calculate worst case for the length of the filter wing */
     d_factor = (double)p_filter->output.i_rate
                         / p_filter->input.i_rate;
+
+    if( d_factor < (double)1.0 )
+    {
+        return VLC_EGENERIC;
+    }
+
     i_filter_wing = ((SMALL_FILTER_NMULT + 1)/2.0)
                       * __MAX(1.0, 1.0/d_factor) + 10;
     p_filter->p_sys->i_buf_size = aout_FormatNbChannels( &p_filter->input ) *