gstreamer/gst/rtp/gstrtpdec.c

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/* GStreamer
* Copyright (C) <2005> Wim Taymans <wim@fluendo.com>
*
* 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.
*/
/* Element-Checklist-Version: 5 */
#include "gstrtpdec.h"
/* elementfactory information */
static GstElementDetails rtpdec_details = GST_ELEMENT_DETAILS ("RTP Decoder",
"Codec/Parser/Network",
"Accepts raw RTP and RTCP packets and sends them forward",
"Wim Taymans <wim@fluendo.com>");
/* GstRTPDec signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_SKIP
/* FILL ME */
};
static GstStaticPadTemplate gst_rtpdec_src_rtp_template =
GST_STATIC_PAD_TEMPLATE ("srcrtp",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp")
);
static GstStaticPadTemplate gst_rtpdec_src_rtcp_template =
GST_STATIC_PAD_TEMPLATE ("srcrtcp",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtcp")
);
static GstStaticPadTemplate gst_rtpdec_sink_rtp_template =
GST_STATIC_PAD_TEMPLATE ("sinkrtp",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp")
);
static GstStaticPadTemplate gst_rtpdec_sink_rtcp_template =
GST_STATIC_PAD_TEMPLATE ("sinkrtcp",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtcp")
);
static void gst_rtpdec_class_init (gpointer g_class);
static void gst_rtpdec_init (GstRTPDec * rtpdec);
static GstFlowReturn gst_rtpdec_chain_rtp (GstPad * pad, GstBuffer * buffer);
static GstFlowReturn gst_rtpdec_chain_rtcp (GstPad * pad, GstBuffer * buffer);
static void gst_rtpdec_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_rtpdec_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static GstElementStateReturn gst_rtpdec_change_state (GstElement * element);
static GstElementClass *parent_class = NULL;
/*static guint gst_rtpdec_signals[LAST_SIGNAL] = { 0 };*/
GType
gst_rtpdec_get_type (void)
{
static GType rtpdec_type = 0;
if (!rtpdec_type) {
static const GTypeInfo rtpdec_info = {
sizeof (GstRTPDecClass), NULL,
NULL,
(GClassInitFunc) gst_rtpdec_class_init,
NULL,
NULL,
sizeof (GstRTPDec),
0,
(GInstanceInitFunc) gst_rtpdec_init,
};
rtpdec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRTPDec", &rtpdec_info, 0);
}
return rtpdec_type;
}
static void
gst_rtpdec_class_init (gpointer g_class)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstRTPDecClass *klass;
klass = (GstRTPDecClass *) g_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_rtpdec_src_rtp_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_rtpdec_src_rtcp_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_rtpdec_sink_rtp_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_rtpdec_sink_rtcp_template));
gst_element_class_set_details (gstelement_class, &rtpdec_details);
gobject_class->set_property = gst_rtpdec_set_property;
gobject_class->get_property = gst_rtpdec_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SKIP, g_param_spec_int ("skip", "skip", "skip", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gstelement_class->change_state = gst_rtpdec_change_state;
}
static void
gst_rtpdec_init (GstRTPDec * rtpdec)
{
/* the input rtp pad */
rtpdec->sink_rtp =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpdec_sink_rtp_template), "sinkrtp");
gst_element_add_pad (GST_ELEMENT (rtpdec), rtpdec->sink_rtp);
gst_pad_set_chain_function (rtpdec->sink_rtp, gst_rtpdec_chain_rtp);
/* the input rtcp pad */
rtpdec->sink_rtcp =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpdec_sink_rtcp_template), "sinkrtcp");
gst_element_add_pad (GST_ELEMENT (rtpdec), rtpdec->sink_rtcp);
gst_pad_set_chain_function (rtpdec->sink_rtcp, gst_rtpdec_chain_rtcp);
/* the output rtp pad */
rtpdec->src_rtp =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpdec_src_rtp_template), "srcrtp");
gst_element_add_pad (GST_ELEMENT (rtpdec), rtpdec->src_rtp);
/* the output rtcp pad */
rtpdec->src_rtcp =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpdec_src_rtcp_template), "srcrtcp");
gst_element_add_pad (GST_ELEMENT (rtpdec), rtpdec->src_rtcp);
}
static GstFlowReturn
gst_rtpdec_chain_rtp (GstPad * pad, GstBuffer * buffer)
{
GstRTPDec *src;
src = GST_RTPDEC (GST_PAD_PARENT (pad));
g_print ("got rtp packet\n");
return gst_pad_push (src->src_rtp, buffer);
}
static GstFlowReturn
gst_rtpdec_chain_rtcp (GstPad * pad, GstBuffer * buffer)
{
g_print ("got rtcp packet\n");
return GST_FLOW_OK;
}
static void
gst_rtpdec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRTPDec *src;
src = GST_RTPDEC (object);
switch (prop_id) {
case ARG_SKIP:
break;
default:
break;
}
}
static void
gst_rtpdec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRTPDec *src;
src = GST_RTPDEC (object);
switch (prop_id) {
case ARG_SKIP:
break;
default:
break;
}
}
static GstElementStateReturn
gst_rtpdec_change_state (GstElement * element)
{
GstElementStateReturn ret;
GstRTPDec *rtpdec;
gint transition;
rtpdec = GST_RTPDEC (element);
transition = GST_STATE_TRANSITION (element);
switch (transition) {
case GST_STATE_PAUSED_TO_READY:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
switch (transition) {
case GST_STATE_PAUSED_TO_READY:
break;
default:
break;
}
return ret;
}
gboolean
gst_rtpdec_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpdec",
GST_RANK_NONE, GST_TYPE_RTPDEC);
}