/* GStreamer * Copyright (C) <2007> Stefan Kost * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:element-equalizer-10bands * @title: equalizer-10bands * * The 10 band equalizer element allows to change the gain of 10 equally distributed * frequency bands between 30 Hz and 15 kHz. * * ## Example launch line * |[ * gst-launch-1.0 filesrc location=song.ogg ! oggdemux ! vorbisdec ! audioconvert ! equalizer-10bands band2=3.0 ! alsasink * ]| This raises the volume of the 3rd band which is at 119 Hz by 3 db. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstiirequalizer.h" #include "gstiirequalizer10bands.h" enum { PROP_BAND0 = 1, PROP_BAND1, PROP_BAND2, PROP_BAND3, PROP_BAND4, PROP_BAND5, PROP_BAND6, PROP_BAND7, PROP_BAND8, PROP_BAND9, }; static void gst_iir_equalizer_10bands_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_iir_equalizer_10bands_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); GST_DEBUG_CATEGORY_EXTERN (equalizer_debug); #define GST_CAT_DEFAULT equalizer_debug #define gst_iir_equalizer_10bands_parent_class parent_class G_DEFINE_TYPE (GstIirEqualizer10Bands, gst_iir_equalizer_10bands, GST_TYPE_IIR_EQUALIZER); /* equalizer implementation */ static void gst_iir_equalizer_10bands_class_init (GstIirEqualizer10BandsClass * klass) { GObjectClass *gobject_class = (GObjectClass *) klass; GstElementClass *gstelement_class = (GstElementClass *) klass; gobject_class->set_property = gst_iir_equalizer_10bands_set_property; gobject_class->get_property = gst_iir_equalizer_10bands_get_property; g_object_class_install_property (gobject_class, PROP_BAND0, g_param_spec_double ("band0", "29 Hz", "gain for the frequency band 29 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND1, g_param_spec_double ("band1", "59 Hz", "gain for the frequency band 59 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND2, g_param_spec_double ("band2", "119 Hz", "gain for the frequency band 119 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND3, g_param_spec_double ("band3", "237 Hz", "gain for the frequency band 237 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND4, g_param_spec_double ("band4", "474 Hz", "gain for the frequency band 474 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND5, g_param_spec_double ("band5", "947 Hz", "gain for the frequency band 947 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND6, g_param_spec_double ("band6", "1889 Hz", "gain for the frequency band 1889 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND7, g_param_spec_double ("band7", "3770 Hz", "gain for the frequency band 3770 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND8, g_param_spec_double ("band8", "7523 Hz", "gain for the frequency band 7523 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); g_object_class_install_property (gobject_class, PROP_BAND9, g_param_spec_double ("band9", "15011 Hz", "gain for the frequency band 15011 Hz, ranging from -24 dB to +12 dB", -24.0, 12.0, 0.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE)); gst_element_class_set_static_metadata (gstelement_class, "10 Band Equalizer", "Filter/Effect/Audio", "Direct Form 10 band IIR equalizer", "Stefan Kost "); } static void gst_iir_equalizer_10bands_init (GstIirEqualizer10Bands * equ_n) { GstIirEqualizer *equ = GST_IIR_EQUALIZER (equ_n); gst_iir_equalizer_compute_frequencies (equ, 10); } static void gst_iir_equalizer_10bands_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstChildProxy *equ = GST_CHILD_PROXY (object); switch (prop_id) { case PROP_BAND0: gst_child_proxy_set_property (equ, "band0::gain", value); break; case PROP_BAND1: gst_child_proxy_set_property (equ, "band1::gain", value); break; case PROP_BAND2: gst_child_proxy_set_property (equ, "band2::gain", value); break; case PROP_BAND3: gst_child_proxy_set_property (equ, "band3::gain", value); break; case PROP_BAND4: gst_child_proxy_set_property (equ, "band4::gain", value); break; case PROP_BAND5: gst_child_proxy_set_property (equ, "band5::gain", value); break; case PROP_BAND6: gst_child_proxy_set_property (equ, "band6::gain", value); break; case PROP_BAND7: gst_child_proxy_set_property (equ, "band7::gain", value); break; case PROP_BAND8: gst_child_proxy_set_property (equ, "band8::gain", value); break; case PROP_BAND9: gst_child_proxy_set_property (equ, "band9::gain", value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_iir_equalizer_10bands_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstChildProxy *equ = GST_CHILD_PROXY (object); switch (prop_id) { case PROP_BAND0: gst_child_proxy_get_property (equ, "band0::gain", value); break; case PROP_BAND1: gst_child_proxy_get_property (equ, "band1::gain", value); break; case PROP_BAND2: gst_child_proxy_get_property (equ, "band2::gain", value); break; case PROP_BAND3: gst_child_proxy_get_property (equ, "band3::gain", value); break; case PROP_BAND4: gst_child_proxy_get_property (equ, "band4::gain", value); break; case PROP_BAND5: gst_child_proxy_get_property (equ, "band5::gain", value); break; case PROP_BAND6: gst_child_proxy_get_property (equ, "band6::gain", value); break; case PROP_BAND7: gst_child_proxy_get_property (equ, "band7::gain", value); break; case PROP_BAND8: gst_child_proxy_get_property (equ, "band8::gain", value); break; case PROP_BAND9: gst_child_proxy_get_property (equ, "band9::gain", value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }