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247 lines
8.8 KiB
C
247 lines
8.8 KiB
C
/* GStreamer
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* Copyright (C) <2007> Stefan Kost <ensonic@users.sf.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-equalizer-10bands
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*
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* The 10 band equalizer element allows to change the gain of 10 equally distributed
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* frequency bands between 30 Hz and 15 kHz.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch filesrc location=song.ogg ! oggdemux ! vorbisdec ! audioconvert ! equalizer-10bands band2=3.0 ! alsasink
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* ]| This raises the volume of the 3rd band which is at 119 Hz by 3 db.
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstiirequalizer.h"
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#include "gstiirequalizer10bands.h"
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enum
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{
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PROP_BAND0 = 1,
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PROP_BAND1,
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PROP_BAND2,
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PROP_BAND3,
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PROP_BAND4,
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PROP_BAND5,
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PROP_BAND6,
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PROP_BAND7,
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PROP_BAND8,
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PROP_BAND9,
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};
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static void gst_iir_equalizer_10bands_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_iir_equalizer_10bands_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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GST_DEBUG_CATEGORY_EXTERN (equalizer_debug);
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#define GST_CAT_DEFAULT equalizer_debug
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static void
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_do_init (GType object_type)
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{
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const GInterfaceInfo preset_interface_info = {
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NULL, /* interface_init */
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NULL, /* interface_finalize */
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NULL /* interface_data */
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};
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g_type_add_interface_static (object_type, GST_TYPE_PRESET,
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&preset_interface_info);
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}
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GST_BOILERPLATE_FULL (GstIirEqualizer10Bands, gst_iir_equalizer_10bands,
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GstIirEqualizer, GST_TYPE_IIR_EQUALIZER, _do_init);
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/* equalizer implementation */
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static void
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gst_iir_equalizer_10bands_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details_simple (element_class, "10 Band Equalizer",
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"Filter/Effect/Audio",
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"Direct Form 10 band IIR equalizer",
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"Stefan Kost <ensonic@users.sf.net>");
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}
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static void
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gst_iir_equalizer_10bands_class_init (GstIirEqualizer10BandsClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_iir_equalizer_10bands_set_property;
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gobject_class->get_property = gst_iir_equalizer_10bands_get_property;
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g_object_class_install_property (gobject_class, PROP_BAND0,
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g_param_spec_double ("band0", "29 Hz",
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"gain for the frequency band 29 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND1,
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g_param_spec_double ("band1", "59 Hz",
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"gain for the frequency band 59 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND2,
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g_param_spec_double ("band2", "119 Hz",
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"gain for the frequency band 119 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND3,
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g_param_spec_double ("band3", "237 Hz",
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"gain for the frequency band 237 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND4,
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g_param_spec_double ("band4", "474 Hz",
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"gain for the frequency band 474 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND5,
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g_param_spec_double ("band5", "947 Hz",
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"gain for the frequency band 947 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND6,
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g_param_spec_double ("band6", "1889 Hz",
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"gain for the frequency band 1889 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND7,
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g_param_spec_double ("band7", "3770 Hz",
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"gain for the frequency band 3770 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND8,
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g_param_spec_double ("band8", "7523 Hz",
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"gain for the frequency band 7523 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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g_object_class_install_property (gobject_class, PROP_BAND9,
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g_param_spec_double ("band9", "15011 Hz",
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"gain for the frequency band 15011 Hz, ranging from -24 dB to +12 dB",
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-24.0, 12.0, 0.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
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}
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static void
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gst_iir_equalizer_10bands_init (GstIirEqualizer10Bands * equ_n,
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GstIirEqualizer10BandsClass * g_class)
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{
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GstIirEqualizer *equ = GST_IIR_EQUALIZER (equ_n);
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gst_iir_equalizer_compute_frequencies (equ, 10);
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}
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static void
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gst_iir_equalizer_10bands_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
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switch (prop_id) {
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case PROP_BAND0:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band0::gain", value);
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break;
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case PROP_BAND1:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band1::gain", value);
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break;
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case PROP_BAND2:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band2::gain", value);
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break;
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case PROP_BAND3:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band3::gain", value);
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break;
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case PROP_BAND4:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band4::gain", value);
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break;
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case PROP_BAND5:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band5::gain", value);
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break;
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case PROP_BAND6:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band6::gain", value);
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break;
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case PROP_BAND7:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band7::gain", value);
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break;
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case PROP_BAND8:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band8::gain", value);
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break;
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case PROP_BAND9:
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gst_child_proxy_set_property (GST_OBJECT (equ), "band9::gain", value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_iir_equalizer_10bands_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstIirEqualizer *equ = GST_IIR_EQUALIZER (object);
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switch (prop_id) {
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case PROP_BAND0:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band0::gain", value);
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break;
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case PROP_BAND1:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band1::gain", value);
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break;
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case PROP_BAND2:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band2::gain", value);
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break;
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case PROP_BAND3:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band3::gain", value);
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break;
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case PROP_BAND4:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band4::gain", value);
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break;
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case PROP_BAND5:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band5::gain", value);
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break;
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case PROP_BAND6:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band6::gain", value);
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break;
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case PROP_BAND7:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band7::gain", value);
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break;
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case PROP_BAND8:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band8::gain", value);
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break;
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case PROP_BAND9:
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gst_child_proxy_get_property (GST_OBJECT (equ), "band9::gain", value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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