1 /* 2 * GStreamer 3 * Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #ifndef __GST_AUDIO_IIR_FILTER_H__ 23 #define __GST_AUDIO_IIR_FILTER_H__ 24 25 #include <gst/gst.h> 26 #include <gst/audio/gstaudiofilter.h> 27 28 #include "audiofxbaseiirfilter.h" 29 30 G_BEGIN_DECLS 31 32 #define GST_TYPE_AUDIO_IIR_FILTER \ 33 (gst_audio_iir_filter_get_type()) 34 #define GST_AUDIO_IIR_FILTER(obj) \ 35 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_IIR_FILTER,GstAudioIIRFilter)) 36 #define GST_AUDIO_IIR_FILTER_CLASS(klass) \ 37 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_IIR_FILTER,GstAudioIIRFilterClass)) 38 #define GST_IS_AUDIO_IIR_FILTER(obj) \ 39 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_IIR_FILTER)) 40 #define GST_IS_AUDIO_IIR_FILTER_CLASS(klass) \ 41 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_IIR_FILTER)) 42 43 typedef struct _GstAudioIIRFilter GstAudioIIRFilter; 44 typedef struct _GstAudioIIRFilterClass GstAudioIIRFilterClass; 45 46 /** 47 * GstAudioIIRFilter: 48 * 49 * Opaque data structure. 50 */ 51 struct _GstAudioIIRFilter { 52 GstAudioFXBaseIIRFilter parent; 53 54 GValueArray *a, *b; 55 56 /* < private > */ 57 GMutex lock; 58 }; 59 60 struct _GstAudioIIRFilterClass { 61 GstAudioFXBaseIIRFilterClass parent; 62 63 void (*rate_changed) (GstElement * element, gint rate); 64 }; 65 66 GType gst_audio_iir_filter_get_type (void); 67 68 G_END_DECLS 69 70 #endif /* __GST_AUDIO_IIR_FILTER_H__ */ 71