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Member "gst-plugins-good-1.20.3/gst/audiofx/audiofirfilter.h" (15 Jun 2022, 2161 Bytes) of package /linux/misc/gst-plugins-good-1.20.3.tar.xz:


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    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_FIR_FILTER_H__
   23 #define __GST_AUDIO_FIR_FILTER_H__
   24 
   25 #include <gst/gst.h>
   26 #include <gst/audio/gstaudiofilter.h>
   27 
   28 #include "audiofxbasefirfilter.h"
   29 
   30 G_BEGIN_DECLS
   31 
   32 #define GST_TYPE_AUDIO_FIR_FILTER \
   33   (gst_audio_fir_filter_get_type())
   34 #define GST_AUDIO_FIR_FILTER(obj) \
   35   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_FIR_FILTER,GstAudioFIRFilter))
   36 #define GST_AUDIO_FIR_FILTER_CLASS(klass) \
   37   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_FIR_FILTER,GstAudioFIRFilterClass))
   38 #define GST_IS_AUDIO_FIR_FILTER(obj) \
   39   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_FIR_FILTER))
   40 #define GST_IS_AUDIO_FIR_FILTER_CLASS(klass) \
   41   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_FIR_FILTER))
   42 
   43 typedef struct _GstAudioFIRFilter GstAudioFIRFilter;
   44 typedef struct _GstAudioFIRFilterClass GstAudioFIRFilterClass;
   45 
   46 /**
   47  * GstAudioFIRFilter:
   48  *
   49  * Opaque data structure.
   50  */
   51 struct _GstAudioFIRFilter {
   52   GstAudioFXBaseFIRFilter parent;
   53 
   54   GValueArray *kernel;
   55   guint64 latency;
   56 
   57   /* < private > */
   58   GMutex lock;
   59 };
   60 
   61 struct _GstAudioFIRFilterClass {
   62   GstAudioFXBaseFIRFilterClass parent;
   63 
   64   void (*rate_changed) (GstElement * element, gint rate);
   65 };
   66 
   67 GType gst_audio_fir_filter_get_type (void);
   68 
   69 GST_ELEMENT_REGISTER_DECLARE (audiofirfilter);
   70 
   71 G_END_DECLS
   72 
   73 #endif /* __GST_AUDIO_FIR_FILTER_H__ */