"Fossies" - the Fresh Open Source Software Archive

Member "gst-plugins-good-1.20.3/gst/audiofx/audiokaraoke.h" (15 Jun 2022, 2337 Bytes) of package /linux/misc/gst-plugins-good-1.20.3.tar.xz:


As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) C and C++ source code syntax highlighting (style: standard) with prefixed line numbers and code folding option. Alternatively you can here view or download the uninterpreted source code file. For more information about "audiokaraoke.h" see the Fossies "Dox" file reference documentation and the last Fossies "Diffs" side-by-side code changes report: 1.18.6_vs_1.20.0.

    1 /* 
    2  * GStreamer
    3  * Copyright (C) 2008 Wim Taymans <wim.taymans@gmail.com>
    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 #ifndef __GST_AUDIO_KARAOKE_H__
   22 #define __GST_AUDIO_KARAOKE_H__
   23 
   24 #include <gst/gst.h>
   25 #include <gst/base/gstbasetransform.h>
   26 #include <gst/audio/audio.h>
   27 #include <gst/audio/gstaudiofilter.h>
   28 
   29 G_BEGIN_DECLS
   30 #define GST_TYPE_AUDIO_KARAOKE            (gst_audio_karaoke_get_type())
   31 #define GST_AUDIO_KARAOKE(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_KARAOKE,GstAudioKaraoke))
   32 #define GST_IS_AUDIO_KARAOKE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_KARAOKE))
   33 #define GST_AUDIO_KARAOKE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_KARAOKE,GstAudioKaraokeClass))
   34 #define GST_IS_AUDIO_KARAOKE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_KARAOKE))
   35 #define GST_AUDIO_KARAOKE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_KARAOKE,GstAudioKaraokeClass))
   36 typedef struct _GstAudioKaraoke GstAudioKaraoke;
   37 typedef struct _GstAudioKaraokeClass GstAudioKaraokeClass;
   38 
   39 typedef void (*GstAudioKaraokeProcessFunc) (GstAudioKaraoke *, guint8 *, guint);
   40 
   41 struct _GstAudioKaraoke
   42 {
   43   GstAudioFilter audiofilter;
   44 
   45   /* properties */
   46   gfloat level;
   47   gfloat mono_level;
   48   gfloat filter_band;
   49   gfloat filter_width;
   50 
   51   /* filter coef */
   52   gfloat A, B, C;
   53   gfloat y1, y2;
   54 
   55   /* < private > */
   56   GstAudioKaraokeProcessFunc process;
   57 };
   58 
   59 struct _GstAudioKaraokeClass
   60 {
   61   GstAudioFilterClass parent;
   62 };
   63 
   64 GType gst_audio_karaoke_get_type (void);
   65 
   66 GST_ELEMENT_REGISTER_DECLARE (audiokaraoke);
   67 
   68 G_END_DECLS
   69 #endif /* __GST_AUDIO_KARAOKE_H__ */