gstreamer/gst/audioconvert/gstaudioconvert.h
Mathieu Duponchelle d4db88772b audioconvert: allow empty mix matrix
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
2017-10-11 22:57:38 +02:00

63 lines
2.1 KiB
C

/* GStreamer
* Copyright (C) 2005 Wim Taymans <wim at fluendo dot com>
*
* gstaudioconvert.h: Convert audio to different audio formats automatically
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_AUDIO_CONVERT_H__
#define __GST_AUDIO_CONVERT_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/audio/audio.h>
#define GST_TYPE_AUDIO_CONVERT (gst_audio_convert_get_type())
#define GST_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CONVERT,GstAudioConvert))
#define GST_AUDIO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_CONVERT,GstAudioConvertClass))
#define GST_IS_AUDIO_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CONVERT))
#define GST_IS_AUDIO_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_CONVERT))
typedef struct _GstAudioConvert GstAudioConvert;
typedef struct _GstAudioConvertClass GstAudioConvertClass;
/**
* GstAudioConvert:
*
* The audioconvert object structure.
*/
struct _GstAudioConvert
{
GstBaseTransform element;
/* properties */
GstAudioDitherMethod dither;
GstAudioNoiseShapingMethod ns;
GValue mix_matrix;
gboolean mix_matrix_was_set;
GstAudioInfo in_info;
GstAudioInfo out_info;
GstAudioConverter *convert;
};
struct _GstAudioConvertClass
{
GstBaseTransformClass parent_class;
};
#endif /* __GST_AUDIO_CONVERT_H__ */