Remove the equalizer plugin, which has moved to -good

Original commit message from CVS:
* configure.ac:
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-bad-plugins-docs.sgml:
* docs/plugins/gst-plugins-bad-plugins-sections.txt:
* docs/plugins/inspect/plugin-equalizer.xml:
* gst/equalizer/.cvsignore:
* gst/equalizer/Makefile.am:
* gst/equalizer/demo.c:
* gst/equalizer/gstiirequalizer.c:
* gst/equalizer/gstiirequalizer.h:
* gst/equalizer/gstiirequalizer10bands.c:
* gst/equalizer/gstiirequalizer10bands.h:
* gst/equalizer/gstiirequalizer3bands.c:
* gst/equalizer/gstiirequalizer3bands.h:
* gst/equalizer/gstiirequalizernbands.c:
* gst/equalizer/gstiirequalizernbands.h:
* tests/check/Makefile.am:
* tests/check/elements/.cvsignore:
* tests/check/elements/equalizer.c:
Remove the equalizer plugin, which has moved to -good

1 files changed, 0 insertions, 660 deletions

diff --git a/gst/equalizer/gstiirequalizer.c b/gst/equalizer/gstiirequalizer.c
deleted file mode 100644
index 684e8843..00000000
--- a/gst/equalizer/gstiirequalizer.c
+++ /dev/null
@@ -1,660 +0,0 @@
-/* GStreamer
- * Copyright (C) <2004> Benjamin Otte <otte@gnome.org>
- *               <2007> Stefan Kost <ensonic@users.sf.net>
- *               <2007> Sebastian Dröge <slomo@circular-chaos.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <math.h>
-#include <string.h>
-
-#include "gstiirequalizer.h"
-#include "gstiirequalizernbands.h"
-#include "gstiirequalizer3bands.h"
-#include "gstiirequalizer10bands.h"
-
-GST_DEBUG_CATEGORY (equalizer_debug);
-#define GST_CAT_DEFAULT equalizer_debug
-
-static void gst_iir_equalizer_child_proxy_interface_init (gpointer g_iface,
-    gpointer iface_data);
-
-static void gst_iir_equalizer_finalize (GObject * object);
-
-static gboolean gst_iir_equalizer_setup (GstAudioFilter * filter,
-    GstRingBufferSpec * fmt);
-static GstFlowReturn gst_iir_equalizer_transform_ip (GstBaseTransform * btrans,
-    GstBuffer * buf);
-
-GST_DEBUG_CATEGORY_EXTERN (equalizer_debug);
-#define GST_CAT_DEFAULT equalizer_debug
-
-#define ALLOWED_CAPS \
-    "audio/x-raw-int,"                                                \
-    " depth=(int)16,"                                                 \
-    " width=(int)16,"                                                 \
-    " endianness=(int)BYTE_ORDER,"                                    \
-    " signed=(bool)TRUE,"                                             \
-    " rate=(int)[1000,MAX],"                                          \
-    " channels=(int)[1,MAX]; "                                        \
-    "audio/x-raw-float,"                                              \
-    " width=(int) { 32, 64 } ,"                                       \
-    " endianness=(int)BYTE_ORDER,"                                    \
-    " rate=(int)[1000,MAX],"                                          \
-    " channels=(int)[1,MAX]"
-
-static void
-_do_init (GType object_type)
-{
-  const GInterfaceInfo child_proxy_interface_info = {
-    (GInterfaceInitFunc) gst_iir_equalizer_child_proxy_interface_init,
-    NULL,                       /* interface_finalize */
-    NULL                        /* interface_data */
-  };
-
-  g_type_add_interface_static (object_type, GST_TYPE_CHILD_PROXY,
-      &child_proxy_interface_info);
-}
-
-GST_BOILERPLATE_FULL (GstIirEqualizer, gst_iir_equalizer,
-    GstAudioFilter, GST_TYPE_AUDIO_FILTER, _do_init);
-
-/* child object */
-
-enum
-{
-  ARG_GAIN = 1,
-  ARG_FREQ,
-  ARG_BANDWIDTH
-};
-
-typedef struct _GstIirEqualizerBandClass GstIirEqualizerBandClass;
-
-#define GST_TYPE_IIR_EQUALIZER_BAND \
-  (gst_iir_equalizer_band_get_type())
-#define GST_IIR_EQUALIZER_BAND(obj) \
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IIR_EQUALIZER_BAND,GstIirEqualizerBand))
-#define GST_IIR_EQUALIZER_BAND_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IIR_EQUALIZER_BAND,GstIirEqualizerBandClass))
-#define GST_IS_IIR_EQUALIZER_BAND(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IIR_EQUALIZER_BAND))
-#define GST_IS_IIR_EQUALIZER_BAND_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IIR_EQUALIZER_BAND))
-
-struct _GstIirEqualizerBand
-{
-  GstObject object;
-
-  /*< private > */
-  /* center frequency and gain */
-  gdouble freq;
-  gdouble gain;
-  gdouble width;
-
-  /* second order iir filter */
-  gdouble b1, b2;               /* IIR coefficients for outputs */
-  gdouble a0, a1, a2;           /* IIR coefficients for inputs */
-};
-
-struct _GstIirEqualizerBandClass
-{
-  GstObjectClass parent_class;
-};
-
-static GType gst_iir_equalizer_band_get_type (void);
-static void setup_filter (GstIirEqualizer * equ, GstIirEqualizerBand * band);
-
-static void
-gst_iir_equalizer_band_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstIirEqualizerBand *band = GST_IIR_EQUALIZER_BAND (object);
-
-  switch (prop_id) {
-    case ARG_GAIN:{
-      gdouble gain;
-
-      gain = g_value_get_double (value);
-      GST_DEBUG_OBJECT (band, "gain = %lf -> %lf", band->gain, gain);
-      if (gain != band->gain) {
-        GstIirEqualizer *equ =
-            GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
-
-        band->gain = gain;
-        if (GST_AUDIO_FILTER (equ)->format.rate) {
-          setup_filter (equ, band);
-        }
-        gst_object_unref (equ);
-        GST_DEBUG_OBJECT (band, "changed gain = %lf ", band->gain);
-      }
-      break;
-    }
-    case ARG_FREQ:{
-      gdouble freq;
-
-      freq = g_value_get_double (value);
-      GST_DEBUG_OBJECT (band, "freq = %lf -> %lf", band->freq, freq);
-      if (freq != band->freq) {
-        GstIirEqualizer *equ =
-            GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
-
-        band->freq = freq;
-        if (GST_AUDIO_FILTER (equ)->format.rate) {
-          setup_filter (equ, band);
-        }
-        gst_object_unref (equ);
-        GST_DEBUG_OBJECT (band, "changed freq = %lf ", band->freq);
-      }
-      break;
-    }
-    case ARG_BANDWIDTH:{
-      gdouble width;
-
-      width = g_value_get_double (value);
-      GST_DEBUG_OBJECT (band, "width = %lf -> %lf", band->width, width);
-      if (width != band->width) {
-        GstIirEqualizer *equ =
-            GST_IIR_EQUALIZER (gst_object_get_parent (GST_OBJECT (band)));
-
-        band->width = width;
-        if (GST_AUDIO_FILTER (equ)->format.rate) {
-          setup_filter (equ, band);
-        }
-        gst_object_unref (equ);
-        GST_DEBUG_OBJECT (band, "changed width = %lf ", band->width);
-      }
-      break;
-    }
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_iir_equalizer_band_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec)
-{
-  GstIirEqualizerBand *band = GST_IIR_EQUALIZER_BAND (object);
-
-  switch (prop_id) {
-    case ARG_GAIN:
-      g_value_set_double (value, band->gain);
-      break;
-    case ARG_FREQ:
-      g_value_set_double (value, band->freq);
-      break;
-    case ARG_BANDWIDTH:
-      g_value_set_double (value, band->width);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_iir_equalizer_band_class_init (GstIirEqualizerBandClass * klass)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
-  gobject_class->set_property = gst_iir_equalizer_band_set_property;
-  gobject_class->get_property = gst_iir_equalizer_band_get_property;
-
-  g_object_class_install_property (gobject_class, ARG_GAIN,
-      g_param_spec_double ("gain", "gain",
-          "gain for the frequency band ranging from -24.0 dB to +12.0 dB",
-          -24.0, 12.0, 0.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
-
-  g_object_class_install_property (gobject_class, ARG_FREQ,
-      g_param_spec_double ("freq", "freq",
-          "center frequency of the band",
-          0.0, 100000.0, 0.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
-
-  g_object_class_install_property (gobject_class, ARG_BANDWIDTH,
-      g_param_spec_double ("bandwidth", "bandwidth",
-          "difference between bandedges in Hz",
-          0.0, 100000.0, 1.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
-}
-
-static void
-gst_iir_equalizer_band_init (GstIirEqualizerBand * band,
-    GstIirEqualizerBandClass * klass)
-{
-  band->freq = 0.0;
-  band->gain = 0.0;
-  band->width = 1.0;
-}
-
-static GType
-gst_iir_equalizer_band_get_type (void)
-{
-  static GType type = 0;
-
-  if (G_UNLIKELY (!type)) {
-    const GTypeInfo type_info = {
-      sizeof (GstIirEqualizerBandClass),
-      NULL,
-      NULL,
-      (GClassInitFunc) gst_iir_equalizer_band_class_init,
-      NULL,
-      NULL,
-      sizeof (GstIirEqualizerBand),
-      0,
-      (GInstanceInitFunc) gst_iir_equalizer_band_init,
-    };
-    type =
-        g_type_register_static (GST_TYPE_OBJECT, "GstIirEqualizerBand",
-        &type_info, 0);
-  }
-  return (type);
-}
-
-
-/* child proxy iface */
-static GstObject *
-gst_iir_equalizer_child_proxy_get_child_by_index (GstChildProxy * child_proxy,
-    guint index)
-{
-  GstIirEqualizer *equ = GST_IIR_EQUALIZER (child_proxy);
-
-  g_return_val_if_fail (index < equ->freq_band_count, NULL);
-
-  GST_LOG ("return child[%d] '%s'", index, GST_OBJECT_NAME (equ->bands[index]));
-  return (gst_object_ref (equ->bands[index]));
-}
-
-static guint
-gst_iir_equalizer_child_proxy_get_children_count (GstChildProxy * child_proxy)
-{
-  GstIirEqualizer *equ = GST_IIR_EQUALIZER (child_proxy);
-
-  GST_LOG ("we have %d children", equ->freq_band_count);
-  return (equ->freq_band_count);
-}
-
-static void
-gst_iir_equalizer_child_proxy_interface_init (gpointer g_iface,
-    gpointer iface_data)
-{
-  GstChildProxyInterface *iface = g_iface;
-
-  GST_DEBUG ("initializing iface");
-
-  iface->get_child_by_index = gst_iir_equalizer_child_proxy_get_child_by_index;
-  iface->get_children_count = gst_iir_equalizer_child_proxy_get_children_count;
-}
-
-
-/* equalizer implementation */
-
-static void
-gst_iir_equalizer_base_init (gpointer g_class)
-{
-  GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (g_class);
-  GstCaps *caps;
-
-  caps = gst_caps_from_string (ALLOWED_CAPS);
-  gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
-  gst_caps_unref (caps);
-}
-
-static void
-gst_iir_equalizer_class_init (GstIirEqualizerClass * klass)
-{
-  GstAudioFilterClass *audio_filter_class = (GstAudioFilterClass *) klass;
-  GstBaseTransformClass *btrans_class = (GstBaseTransformClass *) klass;
-  GObjectClass *gobject_class = (GObjectClass *) klass;
-
-  gobject_class->finalize = gst_iir_equalizer_finalize;
-
-  audio_filter_class->setup = gst_iir_equalizer_setup;
-  btrans_class->transform_ip = gst_iir_equalizer_transform_ip;
-}
-
-static void
-gst_iir_equalizer_init (GstIirEqualizer * eq, GstIirEqualizerClass * g_class)
-{
-  /* nothing to do here */
-}
-
-static void
-gst_iir_equalizer_finalize (GObject * object)
-{
-  GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
-  gint i;
-
-  for (i = 0; i < equ->freq_band_count; i++) {
-    if (equ->bands[i])
-      gst_object_unparent (GST_OBJECT (equ->bands[i]));
-    equ->bands[i] = NULL;
-  }
-  equ->freq_band_count = 0;
-
-  g_free (equ->bands);
-  g_free (equ->history);
-
-  G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static inline gdouble
-arg_to_scale (gdouble arg)
-{
-  return (pow (10.0, arg / 20.0));
-}
-
-/* Filter taken from
- *
- * The Equivalence of Various Methods of Computing
- * Biquad Coefficients for Audio Parametric Equalizers
- *
- * by Robert Bristow-Johnson
- *
- * http://www.aes.org/e-lib/browse.cfm?elib=6326
- * http://www.musicdsp.org/files/EQ-Coefficients.pdf
- *
- * The bandwidth method that we use here is the preferred
- * one from this article transformed from octaves to frequency
- * in Hz.
- */
-static void
-setup_filter (GstIirEqualizer * equ, GstIirEqualizerBand * band)
-{
-  g_return_if_fail (GST_AUDIO_FILTER (equ)->format.rate);
-
-  /* FIXME: we need better filters
-   * - we need shelf-filter for 1st and last 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)
-      omega = M_PI;
-    else if (band->freq < 0.0)
-      omega = 0.0;
-    else
-      omega = 2.0 * M_PI * (band->freq / GST_AUDIO_FILTER (equ)->format.rate);
-
-    if (band->width / GST_AUDIO_FILTER (equ)->format.rate >= 0.5) {
-      /* If bandwidth == 0.5 the calculation below fails as tan(M_PI/2)
-       * is undefined. So set the bandwidth to a slightly smaller value.
-       */
-      bw = M_PI - 0.00000001;
-    } else if (band->width <= 0.0) {
-      /* If bandwidth == 0 this band won't change anything so set
-       * the coefficients accordingly. The coefficient calculation
-       * below would create coefficients that for some reason amplify
-       * the band.
-       */
-      band->a0 = 1.0;
-      band->a1 = 0.0;
-      band->a2 = 0.0;
-      band->b1 = 0.0;
-      band->b2 = 0.0;
-      goto out;
-    } else {
-      bw = 2.0 * M_PI * (band->width / GST_AUDIO_FILTER (equ)->format.rate);
-    }
-
-    edge_gain = sqrt (gain);
-    gamma = tan (bw / 2.0);
-
-    alpha = gamma * edge_gain;
-    beta = gamma / edge_gain;
-
-    band->a0 = (1.0 + alpha) / (1.0 + beta);
-    band->a1 = (-2.0 * cos (omega)) / (1.0 + beta);
-    band->a2 = (1.0 - alpha) / (1.0 + beta);
-    band->b1 = (2.0 * cos (omega)) / (1.0 + beta);
-    band->b2 = -(1.0 - beta) / (1.0 + beta);
-
-  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",
-        band->gain, band->width, band->freq, band->a0, band->a1, band->a2,
-        band->b1, band->b2);
-  }
-}
-
-void
-gst_iir_equalizer_compute_frequencies (GstIirEqualizer * equ, guint new_count)
-{
-  guint old_count, i;
-  gdouble freq0, freq1, step;
-  gchar name[20];
-
-  old_count = equ->freq_band_count;
-  equ->freq_band_count = new_count;
-  GST_DEBUG ("bands %u -> %u", old_count, new_count);
-
-  if (old_count < new_count) {
-    /* add new bands */
-    equ->bands = g_realloc (equ->bands, sizeof (GstObject *) * new_count);
-    for (i = old_count; i < new_count; i++) {
-      equ->bands[i] = g_object_new (GST_TYPE_IIR_EQUALIZER_BAND, NULL);
-      /* otherwise they get names like 'iirequalizerband5' */
-      sprintf (name, "band%u", i);
-      gst_object_set_name (GST_OBJECT (equ->bands[i]), name);
-
-      gst_object_set_parent (GST_OBJECT (equ->bands[i]), GST_OBJECT (equ));
-      gst_child_proxy_child_added (GST_OBJECT (equ),
-          GST_OBJECT (equ->bands[i]));
-    }
-  } else {
-    /* free unused bands */
-    for (i = new_count; i < old_count; i++) {
-      GST_DEBUG ("removing band[%d]=%p", i, equ->bands[i]);
-      gst_child_proxy_child_removed (GST_OBJECT (equ),
-          GST_OBJECT (equ->bands[i]));
-      gst_object_unparent (GST_OBJECT (equ->bands[i]));
-      equ->bands[i] = NULL;
-    }
-  }
-
-  /* free + alloc = no memcpy */
-  g_free (equ->history);
-  equ->history =
-      g_malloc0 (equ->history_size * GST_AUDIO_FILTER (equ)->format.channels *
-      new_count);
-
-  /* set center frequencies and name band objects
-   * FIXME: arg! we can't change the name of parented objects :(
-   *   application should read band->freq to get the name
-   */
-
-  step = pow (HIGHEST_FREQ / LOWEST_FREQ, 1.0 / new_count);
-  freq0 = LOWEST_FREQ;
-  for (i = 0; i < new_count; i++) {
-    freq1 = freq0 * step;
-    equ->bands[i]->freq = freq0 + ((freq1 - freq0) / 2.0);
-    equ->bands[i]->width = freq1 - freq0;
-    GST_DEBUG ("band[%2d] = '%lf'", i, equ->bands[i]->freq);
-    /*
-       if(equ->bands[i]->freq<10000.0)
-       sprintf (name,"%dHz",(gint)equ->bands[i]->freq);
-       else
-       sprintf (name,"%dkHz",(gint)(equ->bands[i]->freq/1000.0));
-       gst_object_set_name( GST_OBJECT (equ->bands[i]), name);
-       GST_DEBUG ("band[%2d] = '%s'",i,name);
-     */
-    freq0 = freq1;
-  }
-
-
-  if (GST_AUDIO_FILTER (equ)->format.rate) {
-    for (i = 0; i < new_count; i++) {
-      setup_filter (equ, equ->bands[i]);
-    }
-  }
-}
-
-/* start of code that is type specific */
-
-#define CREATE_OPTIMIZED_FUNCTIONS(TYPE,BIG_TYPE,MIN_VAL,MAX_VAL)       \
-typedef struct {                                                        \
-  TYPE x1, x2;          /* history of input values for a filter */      \
-  TYPE y1, y2;          /* history of output values for a filter */     \
-} SecondOrderHistory ## TYPE;                                           \
-                                                                        \
-static inline TYPE                                                      \
-one_step_ ## TYPE (GstIirEqualizerBand *filter,                         \
-    SecondOrderHistory ## TYPE *history, TYPE input)                    \
-{                                                                       \
-  /* calculate output */                                                \
-  TYPE output = filter->a0 * input + filter->a1 * history->x1 +         \
-      filter->a2 * history->x2 + filter->b1 * history->y1 +             \
-      filter->b2 * history->y2;                                         \
-  /* update history */                                                  \
-  history->y2 = history->y1;                                            \
-  history->y1 = output;                                                 \
-  history->x2 = history->x1;                                            \
-  history->x1 = input;                                                  \
-                                                                        \
-  return output;                                                        \
-}                                                                       \
-                                                                        \
-static const guint                                                      \
-history_size_ ## TYPE = sizeof (SecondOrderHistory ## TYPE);            \
-                                                                        \
-static void                                                             \
-gst_iir_equ_process_ ## TYPE (GstIirEqualizer *equ, guint8 *data,       \
-guint size, guint channels)                                             \
-{                                                                       \
-  guint frames = size / channels / sizeof (TYPE);                       \
-  guint i, c, f;                                                        \
-  BIG_TYPE cur;                                                         \
-                                                                        \
-  for (i = 0; i < frames; i++) {                                        \
-    for (c = 0; c < channels; c++) {                                    \
-      SecondOrderHistory ## TYPE *history = equ->history;               \
-      cur = *((TYPE *) data);                                           \
-      for (f = 0; f < equ->freq_band_count; f++) {                      \
-        GstIirEqualizerBand *filter = equ->bands[f];                    \
-                                                                        \
-        cur = one_step_ ## TYPE (filter, history, cur);                 \
-        history++;                                                      \
-      }                                                                 \
-      cur = CLAMP (cur, MIN_VAL, MAX_VAL);                              \
-      *((TYPE *) data) = (TYPE) cur;                                    \
-      data += sizeof (TYPE);                                            \
-    }                                                                   \
-  }                                                                     \
-}
-
-CREATE_OPTIMIZED_FUNCTIONS (gint16, gint, -32768, 32767);
-CREATE_OPTIMIZED_FUNCTIONS (gfloat, gfloat, -1.0, 1.0);
-CREATE_OPTIMIZED_FUNCTIONS (gdouble, gdouble, -1.0, 1.0);
-
-static GstFlowReturn
-gst_iir_equalizer_transform_ip (GstBaseTransform * btrans, GstBuffer * buf)
-{
-  GstAudioFilter *filter = GST_AUDIO_FILTER (btrans);
-  GstIirEqualizer *equ = GST_IIR_EQUALIZER (btrans);
-  GstClockTime timestamp;
-
-  if (gst_base_transform_is_passthrough (btrans))
-    return GST_FLOW_OK;
-
-  if (G_UNLIKELY (filter->format.channels < 1 || equ->process == NULL))
-    return GST_FLOW_NOT_NEGOTIATED;
-
-  timestamp = GST_BUFFER_TIMESTAMP (buf);
-  timestamp =
-      gst_segment_to_stream_time (&btrans->segment, GST_FORMAT_TIME, timestamp);
-
-  if (GST_CLOCK_TIME_IS_VALID (timestamp))
-    gst_object_sync_values (G_OBJECT (equ), timestamp);
-
-  equ->process (equ, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf),
-      filter->format.channels);
-
-  return GST_FLOW_OK;
-}
-
-static gboolean
-gst_iir_equalizer_setup (GstAudioFilter * audio, GstRingBufferSpec * fmt)
-{
-  GstIirEqualizer *equ = GST_IIR_EQUALIZER (audio);
-
-  switch (fmt->type) {
-    case GST_BUFTYPE_LINEAR:
-      switch (fmt->width) {
-        case 16:
-          equ->history_size = history_size_gint16;
-          equ->process = gst_iir_equ_process_gint16;
-          break;
-        default:
-          return FALSE;
-      }
-      break;
-    case GST_BUFTYPE_FLOAT:
-      switch (fmt->width) {
-        case 32:
-          equ->history_size = history_size_gfloat;
-          equ->process = gst_iir_equ_process_gfloat;
-          break;
-        case 64:
-          equ->history_size = history_size_gdouble;
-          equ->process = gst_iir_equ_process_gdouble;
-          break;
-        default:
-          return FALSE;
-      }
-      break;
-    default:
-      return FALSE;
-  }
-
-  gst_iir_equalizer_compute_frequencies (equ, equ->freq_band_count);
-  return TRUE;
-}
-
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
-  GST_DEBUG_CATEGORY_INIT (equalizer_debug, "equalizer", 0, "equalizer");
-
-  if (!(gst_element_register (plugin, "equalizer-nbands", GST_RANK_NONE,
-              GST_TYPE_IIR_EQUALIZER_NBANDS)))
-    return FALSE;
-
-  if (!(gst_element_register (plugin, "equalizer-3bands", GST_RANK_NONE,
-              GST_TYPE_IIR_EQUALIZER_3BANDS)))
-    return FALSE;
-
-  if (!(gst_element_register (plugin, "equalizer-10bands", GST_RANK_NONE,
-              GST_TYPE_IIR_EQUALIZER_10BANDS)))
-    return FALSE;
-
-  return TRUE;
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
-    GST_VERSION_MINOR,
-    "equalizer",
-    "GStreamer audio equalizers",
-    plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)