sip: Add media manager and sipify origin

* pipeline: we should bind the used socket of our udpsink to the socket udpsrc

plugins/sip/gst-rfc3551.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2021 Purism SPC
+ *
+ * This file is part of Calls.
+ *
+ * Calls is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Calls 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Calls.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+#pragma once
+
+#include <glib.h>
+
+/*
+ * For more information
+ * see: https://tools.ietf.org/html/rfc3551#section-6
+ */
+
+typedef struct {
+  gint payload_type;
+  gchar* name;
+  gint clock_rate;
+  gint channels;
+  char *gst_payloader_name;
+  char *gst_depayloader_name;
+  char *gst_encoder_name;
+  char *gst_decoder_name;
+} MediaCodecInfo;
+
+
+MediaCodecInfo*  media_codec_by_name (const char *name);
+gchar*           media_codec_get_gst_capabilities (MediaCodecInfo *codec);