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d4db88772b
When an empty mix matrix is passed, audio-channel-mixer will now generate a (potentially truncated) identity matrix, this replicates the behaviour of audiomixmatrix in first-channels mode. https://bugzilla.gnome.org/show_bug.cgi?id=788833
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* GStreamer
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* Copyright (C) 2005 Wim Taymans <wim at fluendo dot com>
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*
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* gstaudioconvert.h: Convert audio to different audio formats automatically
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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_CONVERT_H__
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#define __GST_AUDIO_CONVERT_H__
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/audio/audio.h>
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#define GST_TYPE_AUDIO_CONVERT (gst_audio_convert_get_type())
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#define GST_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CONVERT,GstAudioConvert))
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#define GST_AUDIO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_CONVERT,GstAudioConvertClass))
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#define GST_IS_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CONVERT))
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#define GST_IS_AUDIO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_CONVERT))
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typedef struct _GstAudioConvert GstAudioConvert;
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typedef struct _GstAudioConvertClass GstAudioConvertClass;
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/**
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* GstAudioConvert:
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*
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* The audioconvert object structure.
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*/
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struct _GstAudioConvert
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{
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GstBaseTransform element;
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/* properties */
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GstAudioDitherMethod dither;
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GstAudioNoiseShapingMethod ns;
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GValue mix_matrix;
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gboolean mix_matrix_was_set;
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GstAudioInfo in_info;
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GstAudioInfo out_info;
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GstAudioConverter *convert;
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};
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struct _GstAudioConvertClass
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{
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GstBaseTransformClass parent_class;
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};
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#endif /* __GST_AUDIO_CONVERT_H__ */
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