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Diffstat (limited to 'gst/equalizer/gstiirequalizer10bands.c')
| -rw-r--r-- | gst/equalizer/gstiirequalizer10bands.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/gst/equalizer/gstiirequalizer10bands.c b/gst/equalizer/gstiirequalizer10bands.c new file mode 100644 index 0000000..b39515c --- /dev/null +++ b/gst/equalizer/gstiirequalizer10bands.c @@ -0,0 +1,247 @@ +/* GStreamer + * Copyright (C) <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. + */ + +/** + * SECTION:element-equalizer-10bands + * + * The 10 band equalizer element allows to change the gain of 10 equally distributed + * frequency bands between 30 Hz and 15 kHz. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch 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. + * </refsect2> + */ + +#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 + + +static void +_do_init (GType object_type) +{ + const GInterfaceInfo preset_interface_info = { + NULL, /* interface_init */ + NULL, /* interface_finalize */ + NULL /* interface_data */ + }; + + g_type_add_interface_static (object_type, GST_TYPE_PRESET, + &preset_interface_info); +} + +GST_BOILERPLATE_FULL (GstIirEqualizer10Bands, gst_iir_equalizer_10bands, + GstIirEqualizer, GST_TYPE_IIR_EQUALIZER, _do_init); + +/* equalizer implementation */ + +static void +gst_iir_equalizer_10bands_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_set_details_simple (element_class, "10 Band Equalizer", + "Filter/Effect/Audio", + "Direct Form 10 band IIR equalizer", + "Stefan Kost <ensonic@users.sf.net>"); +} + +static void +gst_iir_equalizer_10bands_class_init (GstIirEqualizer10BandsClass * klass) +{ + GObjectClass *gobject_class = (GObjectClass *) 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)); +} + +static void +gst_iir_equalizer_10bands_init (GstIirEqualizer10Bands * equ_n, + GstIirEqualizer10BandsClass * g_class) +{ + 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) +{ + GstIirEqualizer *equ = GST_IIR_EQUALIZER (object); + + switch (prop_id) { + case PROP_BAND0: + gst_child_proxy_set_property (GST_OBJECT (equ), "band0::gain", value); + break; + case PROP_BAND1: + gst_child_proxy_set_property (GST_OBJECT (equ), "band1::gain", value); + break; + case PROP_BAND2: + gst_child_proxy_set_property (GST_OBJECT (equ), "band2::gain", value); + break; + case PROP_BAND3: + gst_child_proxy_set_property (GST_OBJECT (equ), "band3::gain", value); + break; + case PROP_BAND4: + gst_child_proxy_set_property (GST_OBJECT (equ), "band4::gain", value); + break; + case PROP_BAND5: + gst_child_proxy_set_property (GST_OBJECT (equ), "band5::gain", value); + break; + case PROP_BAND6: + gst_child_proxy_set_property (GST_OBJECT (equ), "band6::gain", value); + break; + case PROP_BAND7: + gst_child_proxy_set_property (GST_OBJECT (equ), "band7::gain", value); + break; + case PROP_BAND8: + gst_child_proxy_set_property (GST_OBJECT (equ), "band8::gain", value); + break; + case PROP_BAND9: + gst_child_proxy_set_property (GST_OBJECT (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) +{ + GstIirEqualizer *equ = GST_IIR_EQUALIZER (object); + + switch (prop_id) { + case PROP_BAND0: + gst_child_proxy_get_property (GST_OBJECT (equ), "band0::gain", value); + break; + case PROP_BAND1: + gst_child_proxy_get_property (GST_OBJECT (equ), "band1::gain", value); + break; + case PROP_BAND2: + gst_child_proxy_get_property (GST_OBJECT (equ), "band2::gain", value); + break; + case PROP_BAND3: + gst_child_proxy_get_property (GST_OBJECT (equ), "band3::gain", value); + break; + case PROP_BAND4: + gst_child_proxy_get_property (GST_OBJECT (equ), "band4::gain", value); + break; + case PROP_BAND5: + gst_child_proxy_get_property (GST_OBJECT (equ), "band5::gain", value); + break; + case PROP_BAND6: + gst_child_proxy_get_property (GST_OBJECT (equ), "band6::gain", value); + break; + case PROP_BAND7: + gst_child_proxy_get_property (GST_OBJECT (equ), "band7::gain", value); + break; + case PROP_BAND8: + gst_child_proxy_get_property (GST_OBJECT (equ), "band8::gain", value); + break; + case PROP_BAND9: + gst_child_proxy_get_property (GST_OBJECT (equ), "band9::gain", value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} |