mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-28 17:25:05 +00:00
0016658ace
Original commit message from CVS: * gst/audiofx/Makefile.am: * gst/audiofx/audiofxbasefirfilter.c: (gst_audio_fx_base_fir_filter_dispose), (gst_audio_fx_base_fir_filter_base_init), (gst_audio_fx_base_fir_filter_class_init), (gst_audio_fx_base_fir_filter_init), (gst_audio_fx_base_fir_filter_push_residue), (gst_audio_fx_base_fir_filter_setup), (gst_audio_fx_base_fir_filter_transform), (gst_audio_fx_base_fir_filter_start), (gst_audio_fx_base_fir_filter_stop), (gst_audio_fx_base_fir_filter_query), (gst_audio_fx_base_fir_filter_query_type), (gst_audio_fx_base_fir_filter_event), (gst_audio_fx_base_fir_filter_set_kernel): * gst/audiofx/audiofxbasefirfilter.h: * gst/audiofx/audiofxbaseiirfilter.c: Implement a base class for generic audio FIR filters. * gst/audiofx/audiowsincband.c: (gst_gst_audio_wsincband_mode_get_type), (gst_gst_audio_wsincband_window_get_type), (gst_audio_wsincband_base_init), (gst_audio_wsincband_class_init), (gst_audio_wsincband_init), (gst_audio_wsincband_build_kernel), (gst_audio_wsincband_setup), (gst_audio_wsincband_set_property), (gst_audio_wsincband_get_property): * gst/audiofx/audiowsincband.h: * gst/audiofx/audiowsinclimit.c: (gst_audio_wsinclimit_mode_get_type), (gst_audio_wsinclimit_window_get_type), (gst_audio_wsinclimit_base_init), (gst_audio_wsinclimit_class_init), (gst_audio_wsinclimit_init), (gst_audio_wsinclimit_build_kernel), (gst_audio_wsinclimit_setup), (gst_audio_wsinclimit_set_property), (gst_audio_wsinclimit_get_property): * gst/audiofx/audiowsinclimit.h: * tests/check/elements/audiowsincband.c: (GST_START_TEST): * tests/check/elements/audiowsinclimit.c: (GST_START_TEST): Use this new base class for audiowsincband and audiowsinclimit. Also cleanup both elements.
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/* -*- c-basic-offset: 2 -*-
|
|
*
|
|
* GStreamer
|
|
* Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2006 Dreamlab Technologies Ltd. <mathis.hofer@dreamlab.net>
|
|
* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef __GST_AUDIO_FX_BASE_FIR_FILTER_H__
|
|
#define __GST_AUDIO_FX_BASE_FIR_FILTER_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/audio/gstaudiofilter.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_AUDIO_FX_BASE_FIR_FILTER \
|
|
(gst_audio_fx_base_fir_filter_get_type())
|
|
#define GST_AUDIO_FX_BASE_FIR_FILTER(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_FX_BASE_FIR_FILTER,GstAudioFXBaseFIRFilter))
|
|
#define GST_AUDIO_FX_BASE_FIR_FILTER_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_FX_BASE_FIR_FILTER,GstAudioFXBaseFIRFilterClass))
|
|
#define GST_IS_AUDIO_FX_BASE_FIR_FILTER(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_FX_BASE_FIR_FILTER))
|
|
#define GST_IS_AUDIO_FX_BASE_FIR_FILTER_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_FX_BASE_FIR_FILTER))
|
|
|
|
typedef struct _GstAudioFXBaseFIRFilter GstAudioFXBaseFIRFilter;
|
|
typedef struct _GstAudioFXBaseFIRFilterClass GstAudioFXBaseFIRFilterClass;
|
|
|
|
typedef void (*GstAudioFXBaseFIRFilterProcessFunc) (GstAudioFXBaseFIRFilter *, guint8 *, guint8 *, guint);
|
|
|
|
/**
|
|
* GstAudioFXBaseFIRFilter:
|
|
*
|
|
* Opaque data structure.
|
|
*/
|
|
struct _GstAudioFXBaseFIRFilter {
|
|
GstAudioFilter element;
|
|
|
|
/* < private > */
|
|
GstAudioFXBaseFIRFilterProcessFunc process;
|
|
|
|
gdouble *kernel; /* filter kernel */
|
|
guint kernel_length; /* length of the filter kernel */
|
|
gdouble *residue; /* buffer for left-over samples from previous buffer */
|
|
guint residue_length;
|
|
|
|
guint64 latency;
|
|
|
|
GstClockTime next_ts;
|
|
guint64 next_off;
|
|
};
|
|
|
|
struct _GstAudioFXBaseFIRFilterClass {
|
|
GstAudioFilterClass parent_class;
|
|
};
|
|
|
|
GType gst_audio_fx_base_fir_filter_get_type (void);
|
|
void gst_audio_fx_base_fir_filter_set_kernel (GstAudioFXBaseFIRFilter *filter, gdouble *kernel, guint kernel_length, guint64 latency);
|
|
void gst_audio_fx_base_fir_filter_push_residue (GstAudioFXBaseFIRFilter *filter);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_AUDIO_FX_BASE_FIR_FILTER_H__ */
|