| /* 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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, 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-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. |
| * </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 |
| |
| |
| #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 <ensonic@users.sf.net>"); |
| } |
| |
| 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; |
| } |
| } |