gstreamer/gst/equalizer/gstiirequalizer.h
Stefan Kost ab92670d13 configure.ac: Depend on gstreamer-0.10.12.1. gst/equalizer/gstiirequalizer.c (ARG_BAND_WIDTH, _do_init, ARG_GAIN, _Gs...
Original commit message from CVS:
* configure.ac:
Depend on gstreamer-0.10.12.1.
* gst/equalizer/gstiirequalizer.c (ARG_BAND_WIDTH, _do_init, ARG_GAIN,
_GstIirEqualizerBand, object, _GstIirEqualizerBandClass,
parent_class, gst_iir_equalizer_band_set_property,
gst_iir_equalizer_band_class_init, gst_iir_equalizer_band_get_type,
gst_iir_equalizer_child_proxy_get_child_by_index,
gst_iir_equalizer_child_proxy_get_children_count,
gst_iir_equalizer_child_proxy_interface_init, setup_filter,
gst_iir_equalizer_compute_frequencies,
gst_iir_equalizer_set_property, gst_iir_equalizer_get_property,
plugin_init):
* gst/equalizer/gstiirequalizer.h (audiofilter):
* gst/equalizer/gstiirequalizernbands.c (ARG_NUM_BANDS,
gst_iir_equalizer_nbands_base_init, gst_iir_equalizer_nbands_init,
gst_iir_equalizer_nbands_set_property):
Use new locking macros.
* gst/filter/gstbpwsinc.c (bpwsinc_set_caps):
Add fixme.
* gst/spectrum/gstspectrum.c (SPECTRUM_WINDOW_BASE,
SPECTRUM_WINDOW_LEN, gst_spectrum_init, gst_spectrum_set_property,
gst_spectrum_event, gst_spectrum_transform_ip):
Use new locking macros. Turn two fixed values into #defines.
2007-05-22 11:14:13 +00:00

76 lines
2.4 KiB
C

/* GStreamer IIR equalizer
* Copyright (C) <2004> Benjamin Otte <otte@gnome.org>
* <2007> Stefan Kost <ensonic@users.sf.net>
*
* 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_IIR_EQUALIZER__
#define __GST_IIR_EQUALIZER__
#include <gst/audio/gstaudiofilter.h>
#include <gst/audio/gstringbuffer.h>
#include <gst/controller/gstcontroller.h>
typedef struct _GstIirEqualizer GstIirEqualizer;
typedef struct _GstIirEqualizerClass GstIirEqualizerClass;
typedef struct _GstIirEqualizerBand GstIirEqualizerBand;
#define GST_TYPE_IIR_EQUALIZER \
(gst_iir_equalizer_get_type())
#define GST_IIR_EQUALIZER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IIR_EQUALIZER,GstIirEqualizer))
#define GST_IIR_EQUALIZER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IIR_EQUALIZER,GstIirEqualizerClass))
#define GST_IS_IIR_EQUALIZER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IIR_EQUALIZER))
#define GST_IS_IIR_EQUALIZER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IIR_EQUALIZER))
#define LOWEST_FREQ (20.0)
#define HIGHEST_FREQ (20000.0)
typedef void (*ProcessFunc) (GstIirEqualizer * eq, guint8 * data, guint size,
guint channels);
struct _GstIirEqualizer
{
GstAudioFilter audiofilter;
/*< private >*/
GstIirEqualizerBand **bands;
/* properties */
guint freq_band_count;
gdouble band_width;
/* for each band and channel */
gpointer history;
guint history_size;
ProcessFunc process;
};
struct _GstIirEqualizerClass
{
GstAudioFilterClass audiofilter_class;
};
extern void gst_iir_equalizer_compute_frequencies (GstIirEqualizer * equ, guint new_count);
extern GType gst_iir_equalizer_get_type(void);
#endif /* __GST_IIR_EQUALIZER__ */