missing crtp init in mod_freetdm.c -- start implementing media modify

libs/freetdm/mod_freetdm/mod_freetdm.c

@@ -178,6 +178,7 @@ static const char* channel_get_variable(switch_core_session_t *session, switch_e
 ftdm_status_t ftdm_channel_from_event(ftdm_sigmsg_t *sigmsg, switch_core_session_t **sp);
 void dump_chan(ftdm_span_t *span, uint32_t chan_id, switch_stream_handle_t *stream);
 void dump_chan_xml(ftdm_span_t *span, uint32_t chan_id, switch_stream_handle_t *stream);
+void ctdm_init(switch_loadable_module_interface_t *module_interface);
 
 static switch_core_session_t *ftdm_channel_get_session(ftdm_channel_t *channel, int32_t id)
 {
@@ -5359,6 +5360,8 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_freetdm_load)
 	SWITCH_ADD_APP(app_interface, "disable_dtmf", "Disable DTMF Detection", "Disable DTMF Detection", disable_dtmf_function, "", SAF_NONE);
 	SWITCH_ADD_APP(app_interface, "enable_dtmf", "Enable DTMF Detection", "Enable DTMF Detection", enable_dtmf_function, "", SAF_NONE);
 
+	ctdm_init(*module_interface);
+
 	/* indicate that the module should continue to be loaded */
 	return SWITCH_STATUS_SUCCESS;
 }

src/mod/endpoints/mod_media_gateway/media_gateway.c

@@ -89,19 +89,6 @@ switch_status_t megaco_activate_termination(mg_termination_t *term)
     char dialstring[100];
     switch_call_cause_t cause;
 
-    if (!zstr(term->uuid)) {
-        /* A UUID is present, check if the channel still exists */
-        switch_core_session_t *session;
-        if ((session = switch_core_session_locate(term->uuid))) {
-            switch_core_session_rwunlock(session);
-            switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Channel [%s] already exists for termination [%s]\n", term->uuid, term->name);
-            return SWITCH_STATUS_SUCCESS;
-        }
-        
-        /* The referenced channel doesn't exist anymore, clear it */
-        term->uuid = NULL;
-    }
-
     switch_event_create(&var_event, SWITCH_EVENT_CLONE);
     
     if (term->type == MG_TERM_RTP) {
@@ -127,6 +114,26 @@ switch_status_t megaco_activate_termination(mg_termination_t *term)
     /* Set common variables on the channel */
     switch_event_add_header_string(var_event, SWITCH_STACK_BOTTOM, SWITCH_PARK_AFTER_BRIDGE_VARIABLE, "true");
     
+    if (!zstr(term->uuid)) {
+        /* A UUID is present, check if the channel still exists */
+        switch_core_session_t *session;
+        if ((session = switch_core_session_locate(term->uuid))) {
+            switch_event_add_header_string(var_event, SWITCH_STACK_BOTTOM, "command", "media_modify");
+            
+            switch_core_session_receive_event(session, &var_event);
+
+            switch_core_session_rwunlock(session);
+            
+            switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Sent refresh to channel [%s], for termination [%s]\n", term->uuid, term->name);
+            
+            return SWITCH_STATUS_SUCCESS;
+        }
+        
+        /* The referenced channel doesn't exist anymore, clear it */
+        term->uuid = NULL;
+    }
+    
+    if (!zstr(term->uuid)) {    
         if (switch_ivr_originate(NULL, &session, &cause, dialstring, 0, NULL, NULL, NULL, NULL, var_event, 0, NULL) != SWITCH_CAUSE_SUCCESS) {
             switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to instanciate termination [%s]: %s\n", term->name, switch_channel_cause2str(cause));   
             status = SWITCH_STATUS_FALSE;
@@ -134,6 +141,7 @@ switch_status_t megaco_activate_termination(mg_termination_t *term)
         }
         
         switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Termination [%s] successfully instanciated as [%s] [%s]\n", term->name, dialstring, switch_core_session_get_uuid(session));   
+    }
     
     switch_set_flag(term, MGT_ACTIVE);
     
@@ -162,7 +170,7 @@ mg_termination_t *megaco_choose_termination(megaco_profile_t *profile, const cha
         switch_snprintf(name, sizeof name, "%s/%d", profile->rtp_termination_id_prefix, term_id);
     } else {
         for (term = profile->physical_terminations; term; term = term->next) {
-            if (!strncasecmp(prefix, term->name, prefixlen) && !switch_test_flag(term, MGT_ALLOCATED)) {
+            if (!switch_test_flag(term, MGT_ALLOCATED) && !strncasecmp(prefix, term->name, prefixlen)) {
                 switch_set_flag(term, MGT_ALLOCATED);
                 return term;
             }
@@ -185,6 +193,7 @@ mg_termination_t *megaco_choose_termination(megaco_profile_t *profile, const cha
         term->u.rtp.local_port = switch_rtp_request_port(term->u.rtp.local_addr);
         term->u.rtp.codec = megaco_codec_str(profile->default_codec);
         term->u.rtp.term_id = term_id;
+        term->u.rtp.ptime = 20;
         term->name = switch_core_strdup(term->pool, name);
     }
     

src/mod/endpoints/mod_sofia/rtp.c

@@ -93,6 +93,7 @@ static switch_status_t channel_read_frame(switch_core_session_t *session, switch
 static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags, int stream_id);
 static switch_status_t channel_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg);
 static switch_status_t channel_send_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf);
+static switch_status_t channel_receive_event(switch_core_session_t *session, switch_event_t *event);
 
 switch_state_handler_table_t crtp_state_handlers = {
 	.on_init = channel_on_init,
@@ -104,6 +105,7 @@ switch_io_routines_t crtp_io_routines = {
 	.read_frame = channel_read_frame,
 	.write_frame = channel_write_frame,
 	.receive_message = channel_receive_message,
+    .receive_event = channel_receive_event,
     .send_dtmf = channel_send_dtmf
 };
 
@@ -395,6 +397,42 @@ static switch_status_t channel_send_dtmf(switch_core_session_t *session, const s
     return SWITCH_STATUS_SUCCESS;
 }
 
+static switch_bool_t compare_var(switch_event_t *event, switch_channel_t *channel, const char *varname)
+{
+    const char *chan_val = switch_channel_get_variable_dup(channel, varname, SWITCH_FALSE, -1);
+    const char *event_val = switch_event_get_header(event, varname);
+    
+    return strcasecmp(chan_val, event_val);
+}
+
+static switch_status_t channel_receive_event(switch_core_session_t *session, switch_event_t *event)
+{
+    const char *command = switch_event_get_header(event, "command");
+    switch_channel_t *channel = switch_core_session_get_channel(session);
+    
+    if (!zstr(command) && !strcasecmp(command, "media_modify")) {
+        /* Compare parameters */
+        if (compare_var(event, channel, kREMOTEADDR) ||
+            compare_var(event, channel, kREMOTEPORT) ||
+            compare_var(event, channel, kLOCALADDR) ||
+            compare_var(event, channel, kLOCALPORT)) {
+            /* We need to reset the rtp session */
+            
+        }
+        
+        if (compare_var(event, channel, kCODEC) ||
+            compare_var(event, channel, kPTIME) ||
+            compare_var(event, channel, kPT) ||
+            compare_var(event, channel, kRATE)) {
+            /* Reset codec */
+            
+        }
+        
+    } else {
+        switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Received unknown command [%s] in event.\n", !command ? "null" : command);
+    }
+}
+
 static switch_status_t channel_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg)
 {
     crtp_private_t *tech_pvt = NULL;