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Use special variants for the case when we don't change the panorama (pan=0.0). Simplify the processing functions by passing the panorama value directy instead of the instance. Use orc for clearing buffers too.
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*
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* GStreamer
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* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_AUDIO_PANORAMA_H__
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#define __GST_AUDIO_PANORAMA_H__
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include <gst/base/gstbasetransform.h>
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G_BEGIN_DECLS
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#define GST_TYPE_AUDIO_PANORAMA (gst_audio_panorama_get_type())
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#define GST_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_PANORAMA,GstAudioPanorama))
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#define GST_IS_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_PANORAMA))
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#define GST_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
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#define GST_IS_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_PANORAMA))
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#define GST_AUDIO_PANORAMA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
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typedef struct _GstAudioPanorama GstAudioPanorama;
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typedef struct _GstAudioPanoramaClass GstAudioPanoramaClass;
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typedef void (*GstAudioPanoramaProcessFunc)(gfloat, guint8*, guint8*, guint);
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typedef enum
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{
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METHOD_PSYCHOACOUSTIC = 0,
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METHOD_SIMPLE
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} GstAudioPanoramaMethod;
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struct _GstAudioPanorama {
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GstBaseTransform element;
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/* properties */
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gfloat panorama;
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GstAudioPanoramaMethod method;
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/* < private > */
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GstAudioPanoramaProcessFunc process;
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GstAudioInfo info;
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};
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struct _GstAudioPanoramaClass {
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GstBaseTransformClass parent_class;
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};
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GType gst_audio_panorama_get_type (void);
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G_END_DECLS
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#endif /* __GST_AUDIO_PANORAMA_H__ */
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