1 /* GStreamer 2 * Copyright (C) 2013 Juan Manuel Borges Caño <juanmabcmail@gmail.com> 3 * 2013 Stefan Sauer <ensonic@users.sf.net> 4 * 5 * gstladspautils.h: Header for LADSPA plugin utils 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef __GST_LADSPA_UTILS_H__ 24 #define __GST_LADSPA_UTILS_H__ 25 26 #include <gmodule.h> 27 #include <gst/gst.h> 28 #include <gst/audio/gstaudiofilter.h> 29 #include <gst/base/gstbasesrc.h> 30 #include <gst/base/gstbasesink.h> 31 32 #include <ladspa.h> 33 34 G_BEGIN_DECLS 35 36 typedef struct _GstLADSPA GstLADSPA; 37 38 typedef struct _GstLADSPAClass GstLADSPAClass; 39 40 struct _GstLADSPA 41 { 42 GstLADSPAClass *klass; 43 44 LADSPA_Handle *handle; 45 gboolean activated; 46 unsigned long rate; 47 48 struct 49 { 50 struct 51 { 52 LADSPA_Data *in; 53 LADSPA_Data *out; 54 } control; 55 56 struct 57 { 58 LADSPA_Data **in; 59 LADSPA_Data **out; 60 } audio; 61 } ports; 62 }; 63 64 struct _GstLADSPAClass 65 { 66 guint properties; 67 68 GModule *plugin; 69 const LADSPA_Descriptor *descriptor; 70 71 struct 72 { 73 struct 74 { 75 guint in; 76 guint out; 77 } control; 78 79 struct 80 { 81 guint in; 82 guint out; 83 } audio; 84 } count; 85 86 struct 87 { 88 struct 89 { 90 unsigned long *in; 91 unsigned long *out; 92 } control; 93 94 struct 95 { 96 unsigned long *in; 97 unsigned long *out; 98 } audio; 99 } map; 100 }; 101 102 gboolean 103 gst_ladspa_transform (GstLADSPA * ladspa, guint8 * outdata, guint samples, 104 guint8 * indata); 105 106 gboolean 107 gst_ladspa_setup (GstLADSPA * ladspa, unsigned long rate); 108 109 gboolean 110 gst_ladspa_cleanup (GstLADSPA * ladspa); 111 112 void 113 gst_ladspa_object_set_property (GstLADSPA * ladspa, GObject * object, 114 guint prop_id, const GValue * value, GParamSpec * pspec); 115 116 void 117 gst_ladspa_object_get_property (GstLADSPA * ladspa, GObject * object, 118 guint prop_id, GValue * value, GParamSpec * pspec); 119 120 void 121 gst_ladspa_object_class_install_properties (GstLADSPAClass * ladspa_class, 122 GObjectClass * object_class, guint offset); 123 124 void 125 gst_ladspa_element_class_set_metadata (GstLADSPAClass * ladspa_class, 126 GstElementClass * elem_class, const gchar * ladspa_class_tags); 127 128 void 129 gst_ladspa_filter_type_class_add_pad_templates (GstLADSPAClass * ladspa_class, 130 GstAudioFilterClass * audio_class); 131 132 void 133 gst_ladspa_source_type_class_add_pad_template (GstLADSPAClass * ladspa_class, 134 GstBaseSrcClass * audio_class); 135 136 void 137 gst_ladspa_sink_type_class_add_pad_template (GstLADSPAClass * ladspa_class, 138 GstBaseSinkClass * base_class); 139 140 void 141 gst_ladspa_init (GstLADSPA * ladspa, GstLADSPAClass * ladspa_class); 142 143 void 144 gst_ladspa_finalize (GstLADSPA * ladspa); 145 146 void 147 gst_ladspa_class_init (GstLADSPAClass * ladspa_class, GType type); 148 149 void 150 gst_ladspa_class_finalize (GstLADSPAClass * ladspa_class); 151 152 void 153 ladspa_register_element (GstPlugin * plugin, GType parent_type, 154 const GTypeInfo * info, GstStructure * ladspa_meta); 155 156 G_END_DECLS 157 158 #endif /* __GST_LADSPA_UTILS_H__ */ 159