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Diffstat (limited to 'gst/audiofx/audiokaraoke.h')
-rw-r--r-- | gst/audiofx/audiokaraoke.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gst/audiofx/audiokaraoke.h b/gst/audiofx/audiokaraoke.h new file mode 100644 index 0000000..727fafa --- /dev/null +++ b/gst/audiofx/audiokaraoke.h @@ -0,0 +1,70 @@ +/* + * GStreamer + * Copyright (C) 2008 Wim Taymans <wim.taymans@gmail.com> + * + * 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_AUDIO_KARAOKE_H__ +#define __GST_AUDIO_KARAOKE_H__ + +#include <gst/gst.h> +#include <gst/base/gstbasetransform.h> +#include <gst/audio/audio.h> +#include <gst/audio/gstaudiofilter.h> + +G_BEGIN_DECLS +#define GST_TYPE_AUDIO_KARAOKE (gst_audio_karaoke_get_type()) +#define GST_AUDIO_KARAOKE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_KARAOKE,GstAudioKaraoke)) +#define GST_IS_AUDIO_KARAOKE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_KARAOKE)) +#define GST_AUDIO_KARAOKE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_KARAOKE,GstAudioKaraokeClass)) +#define GST_IS_AUDIO_KARAOKE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_KARAOKE)) +#define GST_AUDIO_KARAOKE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_KARAOKE,GstAudioKaraokeClass)) +typedef struct _GstAudioKaraoke GstAudioKaraoke; +typedef struct _GstAudioKaraokeClass GstAudioKaraokeClass; + +typedef void (*GstAudioKaraokeProcessFunc) (GstAudioKaraoke *, guint8 *, guint); + +struct _GstAudioKaraoke +{ + GstAudioFilter audiofilter; + + gint channels; + gint rate; + + /* properties */ + gfloat level; + gfloat mono_level; + gfloat filter_band; + gfloat filter_width; + + /* filter coef */ + gfloat A, B, C; + gfloat y1, y2; + + /* < private > */ + GstAudioKaraokeProcessFunc process; +}; + +struct _GstAudioKaraokeClass +{ + GstAudioFilterClass parent; +}; + +GType gst_audio_karaoke_get_type (void); + +G_END_DECLS +#endif /* __GST_AUDIO_KARAOKE_H__ */ |