mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 03:19:40 +00:00
ab6e3e5e06
Original commit message from CVS: * gst/equalizer/Makefile.am: * gst/equalizer/gstiirequalizer.c: (_do_init), (gst_iir_equalizer_band_set_property), (gst_iir_equalizer_band_get_property), (gst_iir_equalizer_band_class_init), (gst_iir_equalizer_band_get_type), (gst_iir_equalizer_child_proxy_get_child_by_index), (gst_iir_equalizer_child_proxy_get_children_count), (gst_iir_equalizer_child_proxy_interface_init), (gst_iir_equalizer_base_init), (gst_iir_equalizer_class_init), (gst_iir_equalizer_finalize), (setup_filter), (gst_iir_equalizer_compute_frequencies), (gst_iir_equalizer_set_property), (gst_iir_equalizer_get_property), (gst_iir_equalizer_setup), (plugin_init): * gst/equalizer/gstiirequalizer.h: * gst/equalizer/gstiirequalizernbands.c: (gst_iir_equalizer_nbands_base_init), (gst_iir_equalizer_nbands_class_init), (gst_iir_equalizer_nbands_init), (gst_iir_equalizer_nbands_set_property), (gst_iir_equalizer_nbands_get_property): * gst/equalizer/gstiirequalizernbands.h: Refactor plugin into a base class and a first subclass (nband eq). The nband eq uses GstChildProxy and is controlable. More subclasses will follow.
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/* GStreamer
|
|
* Copyright (C) <2004> Benjamin Otte <otte@gnome.org>
|
|
* <2007> Stefan Kost <ensonic@users.sf.net>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* gst-launch filesrc location=song.ogg ! oggdemux ! vorbisdec ! audioconvert ! equalizer-nbands rband5::gain=-1.0 ! alsasink
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstiirequalizer.h"
|
|
#include "gstiirequalizernbands.h"
|
|
|
|
|
|
enum
|
|
{
|
|
ARG_NUM_BANDS = 1
|
|
};
|
|
|
|
static void gst_iir_equalizer_nbands_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec);
|
|
static void gst_iir_equalizer_nbands_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN ()(equalizer_debug);
|
|
#define GST_CAT_DEFAULT equalizer_debug
|
|
|
|
GST_BOILERPLATE (GstIirEqualizerNBands, gst_iir_equalizer_nbands,
|
|
GstIirEqualizer, GST_TYPE_IIR_EQUALIZER);
|
|
|
|
/* equalizer implementation */
|
|
|
|
static void
|
|
gst_iir_equalizer_nbands_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
const GstElementDetails iir_equalizer_details =
|
|
GST_ELEMENT_DETAILS ("N Band Equalizer",
|
|
"Filter/Effect/Audio",
|
|
"Direct Form IIR equalizer",
|
|
"Benjamin Otte <otte@gnome.org>," " Stefan Kost <ensonic@user.sf.net>");
|
|
|
|
gst_element_class_set_details (element_class, &iir_equalizer_details);
|
|
}
|
|
|
|
static void
|
|
gst_iir_equalizer_nbands_class_init (GstIirEqualizerNBandsClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = (GObjectClass *) klass;
|
|
|
|
gobject_class->set_property = gst_iir_equalizer_nbands_set_property;
|
|
gobject_class->get_property = gst_iir_equalizer_nbands_get_property;
|
|
|
|
g_object_class_install_property (gobject_class, ARG_NUM_BANDS,
|
|
g_param_spec_uint ("num-bands", "num-bands",
|
|
"number of different bands to use", 2, 64, 10,
|
|
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
|
|
}
|
|
|
|
static void
|
|
gst_iir_equalizer_nbands_init (GstIirEqualizerNBands * equ_n,
|
|
GstIirEqualizerNBandsClass * g_class)
|
|
{
|
|
GstIirEqualizer *equ = GST_IIR_EQUALIZER (equ_n);
|
|
|
|
gst_iir_equalizer_compute_frequencies (equ, 10);
|
|
}
|
|
|
|
static void
|
|
gst_iir_equalizer_nbands_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
|
|
|
|
GST_EQUALIZER_TRANSFORM_LOCK (equ);
|
|
GST_OBJECT_LOCK (equ);
|
|
switch (prop_id) {
|
|
case ARG_NUM_BANDS:
|
|
gst_iir_equalizer_compute_frequencies (equ, g_value_get_uint (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
GST_OBJECT_UNLOCK (equ);
|
|
GST_EQUALIZER_TRANSFORM_UNLOCK (equ);
|
|
}
|
|
|
|
static void
|
|
gst_iir_equalizer_nbands_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_NUM_BANDS:
|
|
g_value_set_uint (value, equ->freq_band_count);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|