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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstfilter.c: element for filter plug-ins
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstfilter.h"
#include <gst/audio/audio.h>
struct _elements_entry {
gchar *name;
GType (*type) (void);
};
static struct _elements_entry _elements[] = {
{ "iir", gst_iir_get_type },
{ "lpwsinc", gst_lpwsinc_get_type },
{ "bpwsinc", gst_bpwsinc_get_type },
{ NULL, 0 },
};
GstPadTemplate*
gst_filter_src_factory (void)
{
static GstPadTemplate *templ = NULL;
if (!templ) {
templ = GST_PAD_TEMPLATE_NEW (
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
gst_caps_new (
"filter_src",
"audio/x-raw-float",
GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_PROPS
)
);
}
return templ;
}
GstPadTemplate*
gst_filter_sink_factory (void)
{
static GstPadTemplate *templ = NULL;
if (!templ) {
templ = GST_PAD_TEMPLATE_NEW (
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
gst_caps_new (
"filter_src",
"audio/x-raw-float",
GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_PROPS
)
);
}
return templ;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
gint i = 0;
while (_elements[i].name) {
if (!gst_element_register (plugin, _elements[i].name, GST_RANK_NONE, _elements[i].type()))
return FALSE;
i++;
}
return TRUE;
}
GST_PLUGIN_DEFINE (
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"filter",
"IIR, lpwsinc and bpwsinc audio filter elements",
plugin_init,
VERSION,
"LGPL",
GST_COPYRIGHT,
GST_PACKAGE,
GST_ORIGIN
);
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