mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-06 09:29:42 +00:00
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
|
|
* GStreamer
|
|
* Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
|
|
*
|
|
* 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_ECHO_H__
|
|
#define __GST_AUDIO_ECHO_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_ECHO (gst_audio_echo_get_type())
|
|
#define GST_AUDIO_ECHO(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_ECHO,GstAudioEcho))
|
|
#define GST_IS_AUDIO_ECHO(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_ECHO))
|
|
#define GST_AUDIO_ECHO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_ECHO,GstAudioEchoClass))
|
|
#define GST_IS_AUDIO_ECHO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_ECHO))
|
|
#define GST_AUDIO_ECHO_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_ECHO,GstAudioEchoClass))
|
|
typedef struct _GstAudioEcho GstAudioEcho;
|
|
typedef struct _GstAudioEchoClass GstAudioEchoClass;
|
|
|
|
typedef void (*GstAudioEchoProcessFunc) (GstAudioEcho *, guint8 *, guint);
|
|
|
|
struct _GstAudioEcho
|
|
{
|
|
GstAudioFilter audiofilter;
|
|
|
|
guint64 delay;
|
|
guint64 max_delay;
|
|
gfloat intensity;
|
|
gfloat feedback;
|
|
gboolean surdelay;
|
|
guint64 surround_mask;
|
|
|
|
/* < private > */
|
|
GstAudioEchoProcessFunc process;
|
|
guint delay_frames;
|
|
guint8 *buffer;
|
|
guint buffer_pos;
|
|
guint buffer_size;
|
|
guint buffer_size_frames;
|
|
|
|
GMutex lock;
|
|
};
|
|
|
|
struct _GstAudioEchoClass
|
|
{
|
|
GstAudioFilterClass parent;
|
|
};
|
|
|
|
GType gst_audio_echo_get_type (void);
|
|
|
|
GST_ELEMENT_REGISTER_DECLARE (audioecho);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_AUDIO_ECHO_H__ */
|