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equalizer: Don't reset frequency bands from user settings. Fixes #570343.

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Move reallocating the history buffer out of _compute_frequencies() and call the
right function as needed. Add some logging and tweak the formatting of existing
logging. Simplify setting need_new_coefficients when changing properties.
This commit is contained in:
Stefan Kost 2009-02-03 14:09:26 +02:00
parent be3674c516
commit 7de49319d7
1 changed files with 20 additions and 18 deletions
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38
gst/equalizer/gstiirequalizer.c
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@ -141,8 +141,7 @@ gst_iir_equalizer_band_set_property (GObject * object, guint prop_id,
GstIirEqualizer *equ =
GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
equ->need_new_coefficients = equ->need_new_coefficients ||
(band->gain != gain);
equ->need_new_coefficients = TRUE;
band->gain = gain;
gst_object_unref (equ);
@ -159,8 +158,7 @@ gst_iir_equalizer_band_set_property (GObject * object, guint prop_id,
GstIirEqualizer *equ =
GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
equ->need_new_coefficients = equ->need_new_coefficients ||
(band->freq != freq);
equ->need_new_coefficients = TRUE;
band->freq = freq;
gst_object_unref (equ);
GST_DEBUG_OBJECT (band, "changed freq = %lf ", band->freq);
@ -176,8 +174,7 @@ gst_iir_equalizer_band_set_property (GObject * object, guint prop_id,
GstIirEqualizer *equ =
GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
equ->need_new_coefficients = equ->need_new_coefficients ||
(band->width != width);
equ->need_new_coefficients = TRUE;
band->width = width;
gst_object_unref (equ);
GST_DEBUG_OBJECT (band, "changed width = %lf ", band->width);
@ -390,12 +387,9 @@ setup_filter (GstIirEqualizer * equ, GstIirEqualizerBand * band)
*/
{
gdouble gain, omega, bw;
gdouble edge_gain, gamma;
gdouble alpha, beta;
gain = arg_to_scale (band->gain);
if (band->freq / GST_AUDIO_FILTER (equ)->format.rate > 0.5)
@ -441,7 +435,7 @@ setup_filter (GstIirEqualizer * equ, GstIirEqualizerBand * band)
out:
GST_INFO
("gain = %7.5g, , bandwidth= %7.5g, frequency = %7.5g, a0 = %7.5g, a1 = %7.5g, a2=%7.5g b1 = %7.5g, b2 = %7.5g",
("gain = %5.1f, width= %7.2f, freq = %7.2f, a0 = %7.5g, a1 = %7.5g, a2=%7.5g b1 = %7.5g, b2 = %7.5g",
band->gain, band->width, band->freq, band->a0, band->a1, band->a2,
band->b1, band->b2);
}
@ -473,15 +467,26 @@ update_coefficients (GstIirEqualizer * equ)
equ->need_new_coefficients = FALSE;
}
static void
alloc_history (GstIirEqualizer * equ)
{
/* free + alloc = no memcpy */
g_free (equ->history);
equ->history =
g_malloc0 (equ->history_size * GST_AUDIO_FILTER (equ)->format.channels *
equ->freq_band_count);
}
void
gst_iir_equalizer_compute_frequencies (GstIirEqualizer * equ, guint new_count)
{
guint old_count, i;
gdouble freq0, freq1, step;
gchar name[20];
if (equ->freq_band_count == new_count)
return;
old_count = equ->freq_band_count;
equ->freq_band_count = new_count;
GST_DEBUG ("bands %u -> %u", old_count, new_count);
@ -494,6 +499,7 @@ gst_iir_equalizer_compute_frequencies (GstIirEqualizer * equ, guint new_count)
/* otherwise they get names like 'iirequalizerband5' */
sprintf (name, "band%u", i);
gst_object_set_name (GST_OBJECT (equ->bands[i]), name);
GST_DEBUG ("adding band[%d]=%p", i, equ->bands[i]);
gst_object_set_parent (GST_OBJECT (equ->bands[i]), GST_OBJECT (equ));
gst_child_proxy_child_added (GST_OBJECT (equ),
@ -510,11 +516,7 @@ gst_iir_equalizer_compute_frequencies (GstIirEqualizer * equ, guint new_count)
}
}
/* free + alloc = no memcpy */
g_free (equ->history);
equ->history =
g_malloc0 (equ->history_size * GST_AUDIO_FILTER (equ)->format.channels *
new_count);
alloc_history (equ);
/* set center frequencies and name band objects
* FIXME: arg! we can't change the name of parented objects :(
@ -716,7 +718,7 @@ gst_iir_equalizer_setup (GstAudioFilter * audio, GstRingBufferSpec * fmt)
return FALSE;
}
gst_iir_equalizer_compute_frequencies (equ, equ->freq_band_count);
alloc_history (equ);
return TRUE;
}