--- a/gst_plugins_good/gst/audiofx/audiofirfilter.c	Tue Jul 06 14:35:10 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,269 +0,0 @@
-/* 
- * GStreamer
- * Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
- *
- * 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.
- * 
- */
-
-/**
- * SECTION:element-audiofirfilter
- *
- * audiofirfilter implements a generic audio <ulink url="http://en.wikipedia.org/wiki/Finite_impulse_response">FIR filter</ulink>. Before usage the
- * "kernel" property has to be set to the filter kernel that should be
- * used and the "latency" property has to be set to the latency (in samples)
- * that is introduced by the filter kernel. Setting a latency of n samples
- * will lead to the first n samples being dropped from the output and
- * n samples added to the end.
- *
- * The filter kernel describes the impulse response of the filter. To
- * calculate the frequency response of the filter you have to calculate
- * the Fourier Transform of the impulse response.
- *
- * To change the filter kernel whenever the sampling rate changes the
- * "rate-changed" signal can be used. This should be done for most
- * FIR filters as they're depending on the sampling rate.
- *
- * <refsect2>
- * <title>Example application</title>
- * |[
- * <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" parse="text" href="../../../../tests/examples/audiofx/firfilter-example.c" />
- * ]|
- * </refsect2>
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <string.h>
-#include <math.h>
-#include <gst/gst.h>
-#include <gst/audio/gstaudiofilter.h>
-#include <gst/controller/gstcontroller.h>
-
-#include "audiofirfilter.h"
-
-#define GST_CAT_DEFAULT gst_audio_fir_filter_debug
-GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
-
-enum
-{
-  SIGNAL_RATE_CHANGED,
-  LAST_SIGNAL
-};
-
-enum
-{
-  PROP_0,
-  PROP_KERNEL,
-  PROP_LATENCY
-};
-
-static guint gst_audio_fir_filter_signals[LAST_SIGNAL] = { 0, };
-
-#define DEBUG_INIT(bla) \
-  GST_DEBUG_CATEGORY_INIT (gst_audio_fir_filter_debug, "audiofirfilter", 0, \
-      "Generic audio FIR filter plugin");
-
-GST_BOILERPLATE_FULL (GstAudioFIRFilter, gst_audio_fir_filter, GstAudioFilter,
-    GST_TYPE_AUDIO_FX_BASE_FIR_FILTER, DEBUG_INIT);
-
-static void gst_audio_fir_filter_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-static void gst_audio_fir_filter_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static void gst_audio_fir_filter_finalize (GObject * object);
-
-static gboolean gst_audio_fir_filter_setup (GstAudioFilter * base,
-    GstRingBufferSpec * format);
-
-/* Element class */
-static void
-gst_audio_fir_filter_base_init (gpointer g_class)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
-  gst_element_class_set_details_simple (element_class,
-      "Audio FIR filter", "Filter/Effect/Audio",
-      "Generic audio FIR filter with custom filter kernel",
-      "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
-}
-
-static void
-gst_audio_fir_filter_class_init (GstAudioFIRFilterClass * klass)
-{
-  GObjectClass *gobject_class = (GObjectClass *) klass;
-  GstAudioFilterClass *filter_class = (GstAudioFilterClass *) klass;
-
-  gobject_class->set_property = gst_audio_fir_filter_set_property;
-  gobject_class->get_property = gst_audio_fir_filter_get_property;
-  gobject_class->finalize = gst_audio_fir_filter_finalize;
-
-  g_object_class_install_property (gobject_class, PROP_KERNEL,
-      g_param_spec_value_array ("kernel", "Filter Kernel",
-          "Filter kernel for the FIR filter",
-          g_param_spec_double ("Element", "Filter Kernel Element",
-              "Element of the filter kernel", -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
-              G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_LATENCY,
-      g_param_spec_uint64 ("latency", "Latecy",
-          "Filter latency in samples",
-          0, G_MAXUINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  filter_class->setup = GST_DEBUG_FUNCPTR (gst_audio_fir_filter_setup);
-
-  /**
-   * GstAudioFIRFilter::rate-changed:
-   * @filter: the filter on which the signal is emitted
-   * @rate: the new sampling rate
-   *
-   * Will be emitted when the sampling rate changes. The callbacks
-   * will be called from the streaming thread and processing will
-   * stop until the event is handled.
-   */
-  gst_audio_fir_filter_signals[SIGNAL_RATE_CHANGED] =
-      g_signal_new ("rate-changed", G_TYPE_FROM_CLASS (klass),
-      G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstAudioFIRFilterClass, rate_changed),
-      NULL, NULL, gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
-}
-
-static void
-gst_audio_fir_filter_update_kernel (GstAudioFIRFilter * self, GValueArray * va)
-{
-  gdouble *kernel;
-  guint i;
-
-  gst_audio_fx_base_fir_filter_push_residue (GST_AUDIO_FX_BASE_FIR_FILTER
-      (self));
-
-  if (va) {
-    if (self->kernel)
-      g_value_array_free (self->kernel);
-
-    self->kernel = va;
-  }
-
-  kernel = g_new (gdouble, self->kernel->n_values);
-
-  for (i = 0; i < self->kernel->n_values; i++) {
-    GValue *v = g_value_array_get_nth (self->kernel, i);
-    kernel[i] = g_value_get_double (v);
-  }
-
-  gst_audio_fx_base_fir_filter_set_kernel (GST_AUDIO_FX_BASE_FIR_FILTER (self),
-      kernel, self->kernel->n_values, self->latency);
-}
-
-static void
-gst_audio_fir_filter_init (GstAudioFIRFilter * self,
-    GstAudioFIRFilterClass * g_class)
-{
-  GValue v = { 0, };
-  GValueArray *va;
-
-  self->latency = 0;
-  va = g_value_array_new (1);
-
-  g_value_init (&v, G_TYPE_DOUBLE);
-  g_value_set_double (&v, 1.0);
-  g_value_array_append (va, &v);
-  g_value_unset (&v);
-  gst_audio_fir_filter_update_kernel (self, va);
-
-  self->lock = g_mutex_new ();
-}
-
-/* GstAudioFilter vmethod implementations */
-
-/* get notified of caps and plug in the correct process function */
-static gboolean
-gst_audio_fir_filter_setup (GstAudioFilter * base, GstRingBufferSpec * format)
-{
-  GstAudioFIRFilter *self = GST_AUDIO_FIR_FILTER (base);
-
-  if (self->rate != format->rate) {
-    g_signal_emit (G_OBJECT (self),
-        gst_audio_fir_filter_signals[SIGNAL_RATE_CHANGED], 0, format->rate);
-    self->rate = format->rate;
-  }
-
-  return GST_AUDIO_FILTER_CLASS (parent_class)->setup (base, format);
-}
-
-static void
-gst_audio_fir_filter_finalize (GObject * object)
-{
-  GstAudioFIRFilter *self = GST_AUDIO_FIR_FILTER (object);
-
-  g_mutex_free (self->lock);
-  self->lock = NULL;
-
-  if (self->kernel)
-    g_value_array_free (self->kernel);
-  self->kernel = NULL;
-
-  G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static void
-gst_audio_fir_filter_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstAudioFIRFilter *self = GST_AUDIO_FIR_FILTER (object);
-
-  g_return_if_fail (GST_IS_AUDIO_FIR_FILTER (self));
-
-  switch (prop_id) {
-    case PROP_KERNEL:
-      g_mutex_lock (self->lock);
-      gst_audio_fx_base_fir_filter_push_residue (GST_AUDIO_FX_BASE_FIR_FILTER
-          (self));
-
-      gst_audio_fir_filter_update_kernel (self, g_value_dup_boxed (value));
-      g_mutex_unlock (self->lock);
-      break;
-    case PROP_LATENCY:
-      g_mutex_lock (self->lock);
-      self->latency = g_value_get_uint64 (value);
-      gst_audio_fir_filter_update_kernel (self, NULL);
-      g_mutex_unlock (self->lock);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_audio_fir_filter_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec)
-{
-  GstAudioFIRFilter *self = GST_AUDIO_FIR_FILTER (object);
-
-  switch (prop_id) {
-    case PROP_KERNEL:
-      g_value_set_boxed (value, self->kernel);
-      break;
-    case PROP_LATENCY:
-      g_value_set_uint64 (value, self->latency);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}