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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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 <string.h>
#include "gstspeexdec.h"
static GstPadTemplate *speexdec_src_template, *speexdec_sink_template;
/* elementfactory information */
GstElementDetails gst_speexdec_details = {
"speex audio decoder",
"Codec/Audio/Decoder",
".speex",
"Wim Taymans <wim.taymans@chello.be>",
};
/* SpeexDec signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
/* FILL ME */
};
static void gst_speexdec_base_init (gpointer g_class);
static void gst_speexdec_class_init (GstSpeexDec *klass);
static void gst_speexdec_init (GstSpeexDec *speexdec);
static void gst_speexdec_chain (GstPad *pad, GstData *_data);
static GstPadLinkReturn gst_speexdec_sinkconnect (GstPad *pad, const GstCaps *caps);
static GstElementClass *parent_class = NULL;
/*static guint gst_speexdec_signals[LAST_SIGNAL] = { 0 }; */
GType
gst_speexdec_get_type(void) {
static GType speexdec_type = 0;
if (!speexdec_type) {
static const GTypeInfo speexdec_info = {
sizeof(GstSpeexDecClass),
gst_speexdec_base_init,
NULL,
(GClassInitFunc)gst_speexdec_class_init,
NULL,
NULL,
sizeof(GstSpeexDec),
0,
(GInstanceInitFunc)gst_speexdec_init,
};
speexdec_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSpeexDec", &speexdec_info, 0);
}
return speexdec_type;
}
static GstStaticPadTemplate speex_sink_template =
GST_STATIC_PAD_TEMPLATE (
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-speex, "
"rate = (int) [ 1000, 48000 ], "
"channels = (int) 1"
)
);
static GstStaticPadTemplate speex_src_template =
GST_STATIC_PAD_TEMPLATE (
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) [ 1000, 48000 ], "
"channels = (int) 1"
)
);
static void
gst_speexdec_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&speex_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&speex_sink_template));
gst_element_class_set_details (element_class, &gst_speexdec_details);
}
static void
gst_speexdec_class_init (GstSpeexDec *klass)
{
GstElementClass *gstelement_class;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
}
static void
gst_speexdec_init (GstSpeexDec *speexdec)
{
GST_DEBUG ("gst_speexdec_init: initializing");
/* create the sink and src pads */
speexdec->sinkpad = gst_pad_new_from_template (speexdec_sink_template, "sink");
gst_element_add_pad (GST_ELEMENT (speexdec), speexdec->sinkpad);
gst_pad_set_chain_function (speexdec->sinkpad, gst_speexdec_chain);
gst_pad_set_link_function (speexdec->sinkpad, gst_speexdec_sinkconnect);
speexdec->srcpad = gst_pad_new_from_template (speexdec_src_template, "src");
gst_element_add_pad (GST_ELEMENT (speexdec), speexdec->srcpad);
}
static GstPadLinkReturn
gst_speexdec_sinkconnect (GstPad *pad, const GstCaps *caps)
{
GstSpeexDec *speexdec;
gint rate;
GstStructure *structure;
speexdec = GST_SPEEXDEC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "rate", &rate);
if (gst_pad_try_set_caps (speexdec->srcpad,
gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"rate", G_TYPE_INT, rate,
"channels", G_TYPE_INT, 1,
NULL)))
{
return GST_PAD_LINK_OK;
}
return GST_PAD_LINK_REFUSED;
}
static void
gst_speexdec_chain (GstPad *pad, GstData *_data)
{
GstBuffer *buf = GST_BUFFER (_data);
GstSpeexDec *speexdec;
gchar *data;
guint size;
g_return_if_fail(pad != NULL);
g_return_if_fail(GST_IS_PAD(pad));
g_return_if_fail(buf != NULL);
/*g_return_if_fail(GST_IS_BUFFER(buf)); */
speexdec = GST_SPEEXDEC (gst_pad_get_parent (pad));
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
gst_buffer_unref(buf);
}
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