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audiowsinclimit: Fix range of kernel elements (lim -> lim-1) in high/low-pass filters

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Jordi Burguet-Castell 2011-04-11 18:40:30 -05:00 committed by Sebastian Dröge
parent 2575cfc4a6
commit 766e437af1
1 changed files with 10 additions and 3 deletions
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13
gst/audiofx/audiowsinclimit.c
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@ -258,10 +258,11 @@ gst_audio_wsinclimit_build_kernel (GstAudioWSincLimit * self)
kernel = g_new (gdouble, len);
for (i = 0; i < len; ++i) {
if (i == len / 2)
if (i % 2 == 1 && i == (len - 1) / 2)
kernel[i] = w;
else
kernel[i] = sin (w * (i - len / 2)) / (i - len / 2);
kernel[i] = sin (w * (i - (len - 1) / 2)) / (i - (len - 1) / 2);
/* windowing */
switch (self->window) {
case WINDOW_HAMMING:
@ -293,7 +294,13 @@ gst_audio_wsinclimit_build_kernel (GstAudioWSincLimit * self)
if (self->mode == MODE_HIGH_PASS) {
for (i = 0; i < len; ++i)
kernel[i] = -kernel[i];
kernel[len / 2] += 1.0;
if (len % 2 == 1)
kernel[(len - 1) / 2] += 1.0;
else {
kernel[len / 2 - 1] += 0.5;
kernel[len / 2] += 0.5;
}
}
gst_audio_fx_base_fir_filter_set_kernel (GST_AUDIO_FX_BASE_FIR_FILTER (self),