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-rw-r--r--gst/rtsp/gstrtpdec.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/gst/rtsp/gstrtpdec.c b/gst/rtsp/gstrtpdec.c
new file mode 100644
index 00000000..7484ad33
--- /dev/null
+++ b/gst/rtsp/gstrtpdec.c
@@ -0,0 +1,277 @@
+/* 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"
+
+GST_DEBUG_CATEGORY (rtpdec_debug);
+#define GST_CAT_DEFAULT (rtpdec_debug)
+
+/* 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 GstCaps *gst_rtpdec_getcaps (GstPad * pad);
+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 GstStateChangeReturn gst_rtpdec_change_state (GstElement * element,
+ GstStateChange transition);
+
+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;
+
+ GST_DEBUG_CATEGORY_INIT (rtpdec_debug, "rtpdec", 0, "RTP decoder");
+}
+
+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_getcaps_function (rtpdec->sink_rtp, gst_rtpdec_getcaps);
+ 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_pad_set_getcaps_function (rtpdec->src_rtp, gst_rtpdec_getcaps);
+ 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 GstCaps *
+gst_rtpdec_getcaps (GstPad * pad)
+{
+ GstRTPDec *src;
+ GstPad *other;
+ GstCaps *caps;
+
+ src = GST_RTPDEC (GST_PAD_PARENT (pad));
+
+ other = pad == src->src_rtp ? src->sink_rtp : src->src_rtp;
+
+ caps = gst_pad_peer_get_caps (other);
+
+ if (caps == NULL)
+ caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
+
+ return caps;
+}
+
+static GstFlowReturn
+gst_rtpdec_chain_rtp (GstPad * pad, GstBuffer * buffer)
+{
+ GstRTPDec *src;
+
+ src = GST_RTPDEC (GST_PAD_PARENT (pad));
+
+ GST_DEBUG ("got rtp packet");
+ return gst_pad_push (src->src_rtp, buffer);
+}
+
+static GstFlowReturn
+gst_rtpdec_chain_rtcp (GstPad * pad, GstBuffer * buffer)
+{
+ GST_DEBUG ("got rtcp packet");
+
+ gst_buffer_unref (buffer);
+ 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 GstStateChangeReturn
+gst_rtpdec_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret;
+ GstRTPDec *rtpdec;
+
+ rtpdec = GST_RTPDEC (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
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