diff options
author | Sebastian Dröge <slomo@circular-chaos.org> | 2009-01-05 10:13:29 +0000 |
---|---|---|
committer | Sebastian Dröge <slomo@circular-chaos.org> | 2009-01-05 10:13:29 +0000 |
commit | 4c7c4c00dacff24aaef55b46a8bc31687d833ca7 (patch) | |
tree | faf0ffeb8a97888d8132e2c03ca89dd7b34d155b /gst/audiofx/audiocheblimit.h | |
parent | 17bb67f873a0bd3c4e631ed510a15799c253fc18 (diff) |
gst/audiofx/: Implement a base class for IIR filters.
Original commit message from CVS:
* gst/audiofx/Makefile.am:
* gst/audiofx/audiofxbaseiirfilter.c:
(gst_audio_fx_base_iir_filter_base_init),
(gst_audio_fx_base_iir_filter_dispose),
(gst_audio_fx_base_iir_filter_class_init),
(gst_audio_fx_base_iir_filter_init),
(gst_audio_fx_base_iir_filter_calculate_gain),
(gst_audio_fx_base_iir_filter_set_coefficients),
(gst_audio_fx_base_iir_filter_setup), (process),
(gst_audio_fx_base_iir_filter_transform_ip),
(gst_audio_fx_base_iir_filter_stop):
* gst/audiofx/audiofxbaseiirfilter.h:
Implement a base class for IIR filters.
* gst/audiofx/audiochebband.c: (gst_audio_cheb_band_base_init),
(gst_audio_cheb_band_class_init), (gst_audio_cheb_band_init),
(generate_coefficients), (gst_audio_cheb_band_set_property),
(gst_audio_cheb_band_setup):
* gst/audiofx/audiochebband.h:
* gst/audiofx/audiocheblimit.c: (gst_audio_cheb_limit_base_init),
(gst_audio_cheb_limit_class_init), (gst_audio_cheb_limit_init),
(generate_coefficients), (gst_audio_cheb_limit_set_property),
(gst_audio_cheb_limit_setup):
* gst/audiofx/audiocheblimit.h:
Use the IIR filter base class for the chebyshev filters.
Diffstat (limited to 'gst/audiofx/audiocheblimit.h')
-rw-r--r-- | gst/audiofx/audiocheblimit.h | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/gst/audiofx/audiocheblimit.h b/gst/audiofx/audiocheblimit.h index c2fe6c2e..491f7494 100644 --- a/gst/audiofx/audiocheblimit.h +++ b/gst/audiofx/audiocheblimit.h @@ -1,6 +1,6 @@ /* * GStreamer - * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org> + * Copyright (C) 2007-2009 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 @@ -26,53 +26,38 @@ #include <gst/audio/audio.h> #include <gst/audio/gstaudiofilter.h> +#include "audiofxbaseiirfilter.h" + G_BEGIN_DECLS + #define GST_TYPE_AUDIO_CHEB_LIMIT (gst_audio_cheb_limit_get_type()) #define GST_AUDIO_CHEB_LIMIT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CHEB_LIMIT,GstAudioChebLimit)) #define GST_IS_AUDIO_CHEB_LIMIT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CHEB_LIMIT)) #define GST_AUDIO_CHEB_LIMIT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_CHEB_LIMIT,GstAudioChebLimitClass)) #define GST_IS_AUDIO_CHEB_LIMIT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_CHEB_LIMIT)) #define GST_AUDIO_CHEB_LIMIT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_CHEB_LIMIT,GstAudioChebLimitClass)) + typedef struct _GstAudioChebLimit GstAudioChebLimit; typedef struct _GstAudioChebLimitClass GstAudioChebLimitClass; -typedef void (*GstAudioChebLimitProcessFunc) (GstAudioChebLimit *, guint8 *, guint); - -typedef struct -{ - gdouble *x; - gint x_pos; - gdouble *y; - gint y_pos; -} GstAudioChebLimitChannelCtx; - struct _GstAudioChebLimit { - GstAudioFilter audiofilter; + GstAudioFXBaseIIRFilter parent; gint mode; gint type; gint poles; gfloat cutoff; gfloat ripple; - - /* < private > */ - GstAudioChebLimitProcessFunc process; - - gboolean have_coeffs; - gdouble *a; - gint num_a; - gdouble *b; - gint num_b; - GstAudioChebLimitChannelCtx *channels; }; struct _GstAudioChebLimitClass { - GstAudioFilterClass parent; + GstAudioFXBaseIIRFilterClass parent; }; GType gst_audio_cheb_limit_get_type (void); G_END_DECLS + #endif /* __GST_AUDIO_CHEB_LIMIT_H__ */ |