From 99753365c6fe868196f454402f94e42d4e0170f0 Mon Sep 17 00:00:00 2001 From: Sebastian Dröge Date: Thu, 22 Jan 2009 10:40:34 +0100 Subject: Rename audioreverb to audioecho. Fixes bug #568395. The element can add an echo and a simple reverb effect to an audio stream but for a real reverb filter it would need some additional filtering to prevent a metallic-sounding result. --- gst/audiofx/audioecho.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 gst/audiofx/audioecho.h (limited to 'gst/audiofx/audioecho.h') diff --git a/gst/audiofx/audioecho.h b/gst/audiofx/audioecho.h new file mode 100644 index 00000000..9513bb8e --- /dev/null +++ b/gst/audiofx/audioecho.h @@ -0,0 +1,68 @@ +/* + * GStreamer + * Copyright (C) 2009 Sebastian Dröge + * + * 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_ECHO_H__ +#define __GST_AUDIO_ECHO_H__ + +#include +#include +#include +#include + +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; + gfloat intensity; + gfloat feedback; + + /* < private > */ + GstAudioEchoProcessFunc process; + guint delay_frames; + guint8 *buffer; + guint buffer_pos; + guint buffer_size; + guint buffer_size_frames; +}; + +struct _GstAudioEchoClass +{ + GstAudioFilterClass parent; +}; + +GType gst_audio_echo_get_type (void); + +G_END_DECLS + +#endif /* __GST_AUDIO_ECHO_H__ */ -- cgit