diff options
Diffstat (limited to 'gst/filter/gstiir.c')
-rw-r--r-- | gst/filter/gstiir.c | 125 |
1 files changed, 62 insertions, 63 deletions
diff --git a/gst/filter/gstiir.c b/gst/filter/gstiir.c index 4ccf9f09..5e44f3d0 100644 --- a/gst/filter/gstiir.c +++ b/gst/filter/gstiir.c @@ -25,20 +25,19 @@ #include "gstfilter.h" #include "iir.h" -static GstElementDetails gst_iir_details = GST_ELEMENT_DETAILS ( - "IIR", - "Filter/Effect/Audio", - "IIR filter based on vorbis code", - "Monty <monty@xiph.org>, " - "Thomas <thomas@apestaart.org>" -); - -enum { +static GstElementDetails gst_iir_details = GST_ELEMENT_DETAILS ("IIR", + "Filter/Effect/Audio", + "IIR filter based on vorbis code", + "Monty <monty@xiph.org>, " "Thomas <thomas@apestaart.org>"); + +enum +{ /* FILL ME */ LAST_SIGNAL }; -enum { +enum +{ ARG_0, ARG_A, ARG_B, @@ -74,33 +73,34 @@ struct _GstIIR struct _GstIIRClass { - GstElementClass parent_class; + GstElementClass parent_class; }; -static void gst_iir_base_init (gpointer g_class); -static void gst_iir_class_init (GstIIRClass * klass); -static void gst_iir_init (GstIIR * filter); +static void gst_iir_base_init (gpointer g_class); +static void gst_iir_class_init (GstIIRClass * klass); +static void gst_iir_init (GstIIR * filter); -static void gst_iir_set_property (GObject * object, guint prop_id, - const GValue * value, - GParamSpec * pspec); -static void gst_iir_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); +static void gst_iir_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_iir_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); -static void gst_iir_chain (GstPad * pad, GstData *_data); +static void gst_iir_chain (GstPad * pad, GstData * _data); static GstPadLinkReturn - gst_iir_sink_connect (GstPad * pad, const GstCaps * caps); +gst_iir_sink_connect (GstPad * pad, const GstCaps * caps); static GstElementClass *parent_class = NULL; + /*static guint gst_iir_signals[LAST_SIGNAL] = { 0 }; */ -GType gst_iir_get_type (void) +GType +gst_iir_get_type (void) { static GType iir_type = 0; if (!iir_type) { static const GTypeInfo iir_info = { - sizeof (GstIIRClass), + sizeof (GstIIRClass), gst_iir_base_init, NULL, (GClassInitFunc) gst_iir_class_init, NULL, NULL, @@ -108,8 +108,8 @@ GType gst_iir_get_type (void) (GInstanceInitFunc) gst_iir_init, }; - iir_type = g_type_register_static (GST_TYPE_ELEMENT, "GstIIR", - &iir_info, 0); + iir_type = g_type_register_static (GST_TYPE_ELEMENT, "GstIIR", + &iir_info, 0); } return iir_type; } @@ -123,9 +123,9 @@ gst_iir_base_init (gpointer g_class) gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_filter_src_template)); gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&gst_filter_sink_template)); + gst_static_pad_template_get (&gst_filter_sink_template)); - gst_element_class_set_details (element_class, &gst_iir_details); + gst_element_class_set_details (element_class, &gst_iir_details); } static void @@ -140,21 +140,17 @@ gst_iir_class_init (GstIIRClass * klass) parent_class = g_type_class_ref (GST_TYPE_ELEMENT); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_A, - g_param_spec_double ("A", "A", "A filter coefficient", - -G_MAXDOUBLE, G_MAXDOUBLE, - 0, G_PARAM_READWRITE)); + g_param_spec_double ("A", "A", "A filter coefficient", + -G_MAXDOUBLE, G_MAXDOUBLE, 0, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_B, - g_param_spec_double ("B", "B", "B filter coefficient", - -G_MAXDOUBLE, G_MAXDOUBLE, - 0, G_PARAM_READWRITE)); + g_param_spec_double ("B", "B", "B filter coefficient", + -G_MAXDOUBLE, G_MAXDOUBLE, 0, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_GAIN, - g_param_spec_double ("gain", "Gain", "Filter gain", - -G_MAXDOUBLE, G_MAXDOUBLE, - 0, G_PARAM_READWRITE)); + g_param_spec_double ("gain", "Gain", "Filter gain", + -G_MAXDOUBLE, G_MAXDOUBLE, 0, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_STAGES, - g_param_spec_int ("stages", "Stages", "Number of filter stages", - 1, G_MAXINT, - 1, G_PARAM_READWRITE)); + g_param_spec_int ("stages", "Stages", "Number of filter stages", + 1, G_MAXINT, 1, G_PARAM_READWRITE)); gobject_class->set_property = gst_iir_set_property; gobject_class->get_property = gst_iir_get_property; @@ -163,19 +159,21 @@ gst_iir_class_init (GstIIRClass * klass) static void gst_iir_init (GstIIR * filter) { - filter->sinkpad = gst_pad_new_from_template ( - gst_static_pad_template_get (&gst_filter_sink_template), "sink"); + filter->sinkpad = + gst_pad_new_from_template (gst_static_pad_template_get + (&gst_filter_sink_template), "sink"); gst_pad_set_chain_function (filter->sinkpad, gst_iir_chain); gst_pad_set_link_function (filter->sinkpad, gst_iir_sink_connect); gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad); - filter->srcpad = gst_pad_new_from_template ( - gst_static_pad_template_get (&gst_filter_src_template), "src"); + filter->srcpad = + gst_pad_new_from_template (gst_static_pad_template_get + (&gst_filter_src_template), "src"); gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad); filter->A = 0.0; filter->B = 0.0; - filter->gain = 1.0; /* unity gain as default */ + filter->gain = 1.0; /* unity gain as default */ filter->stages = 1; filter->state = NULL; } @@ -185,23 +183,23 @@ gst_iir_sink_connect (GstPad * pad, const GstCaps * caps) { GstIIR *filter; GstPadLinkReturn set_retval; - + filter = GST_IIR (gst_pad_get_parent (pad)); - - set_retval = gst_pad_try_set_caps(filter->srcpad, caps); + + set_retval = gst_pad_try_set_caps (filter->srcpad, caps); if (set_retval > 0) { /* connection works, so init the filter */ /* FIXME: remember to free it */ filter->state = (IIR_state *) g_malloc (sizeof (IIR_state)); - IIR_init (filter->state, filter->stages, - filter->gain, &(filter->A), &(filter->B)); + IIR_init (filter->state, filter->stages, + filter->gain, &(filter->A), &(filter->B)); } return set_retval; } static void -gst_iir_chain (GstPad * pad, GstData *_data) +gst_iir_chain (GstPad * pad, GstData * _data) { GstBuffer *buf = GST_BUFFER (_data); GstIIR *filter; @@ -223,7 +221,8 @@ gst_iir_chain (GstPad * pad, GstData *_data) } static void -gst_iir_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) +gst_iir_set_property (GObject * object, guint prop_id, const GValue * value, + GParamSpec * pspec) { GstIIR *filter; @@ -234,30 +233,31 @@ gst_iir_set_property (GObject * object, guint prop_id, const GValue * value, GPa switch (prop_id) { case ARG_A: - filter->A = g_value_get_double (value); - break; + filter->A = g_value_get_double (value); + break; case ARG_B: - filter->B = g_value_get_double (value); - break; + filter->B = g_value_get_double (value); + break; case ARG_GAIN: - filter->gain = g_value_get_double (value); - break; + filter->gain = g_value_get_double (value); + break; case ARG_STAGES: - filter->stages = g_value_get_int (value); - break; + filter->stages = g_value_get_int (value); + break; default: break; } } static void -gst_iir_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) +gst_iir_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) { GstIIR *filter; /* it's not null if we got it, but it might not be ours */ g_return_if_fail (GST_IS_IIR (object)); - + filter = GST_IIR (object); switch (prop_id) { @@ -277,5 +277,4 @@ gst_iir_get_property (GObject * object, guint prop_id, GValue * value, GParamSpe G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } -} - +} |