modules/ims_qos: new mod_param to add RTCP flow description for media…

… flow

New parameter include_rtcp_fd that if set adds additional flow description to AAR for RTCP

modules/ims_qos/doc/ims_qos_admin.xml

@@ -360,6 +360,26 @@ if the Rx session fails</para>
         <programlisting format="linespecific">
 ...
 modparam("ims_qos", "delete_contact_on_rx_failure", 0)
+...
+        </programlisting>
+      </example>
+    </section>
+
+    <section>
+      <title><varname>include_rtcp_fd</varname> integer</title>
+
+      <para>If set then a flow description is added for media flows - next available odd port 
+          is used as the default for RTCP traffic</para>
+
+      <para><emphasis> Default value is 0, RTCP flow description not added</emphasis></para>
+
+      <example>
+        <title><varname>include_rtcp_fd</varname> parameter
+        usage</title>
+
+        <programlisting format="linespecific">
+...
+modparam("ims_qos", "include_rtcp_fd", 1)
 ...
         </programlisting>
       </example>

modules/ims_qos/mod.c

@@ -104,6 +104,9 @@ int video_default_bandwidth = 128;
 //Very useful for UEs that change ports mid way through call therefore breaking flow description filters
 str regex_sdp_ip_prefix_to_maintain_in_fd = {0, 0};
 
+//If set this will include an additional filter for all existing filters using the next odd port up - as this is the RTCP port
+int include_rtcp_fd = 0;
+
 int cdp_event_list_size_threshold = 0; /**Threshold for size of cdp event list after which a warning is logged */
 
 stat_var *aars;
@@ -204,6 +207,7 @@ static param_export_t params[] = {
 		{ "terminate_dialog_on_rx_failure", INT_PARAM, &terminate_dialog_on_rx_failure},
 		{ "delete_contact_on_rx_failure", INT_PARAM, &delete_contact_on_rx_failure},
 		{ "regex_sdp_ip_prefix_to_maintain_in_fd", PARAM_STR, &regex_sdp_ip_prefix_to_maintain_in_fd},
+		{ "include_rtcp_fd", INT_PARAM, &include_rtcp_fd},
 		{ 0, 0, 0}
 };