Merge pull request #1606 in FS/freeswitch from ~LAZEDO/freeswitch:feature/FS-11312 to master

* commit '0e0d5881':
  FS-11312 [core] prevent double firing record_start event

src/switch_ivr_async.c

@@ -1145,6 +1145,7 @@ struct record_helper {
 	uint32_t writes;
 	uint32_t vwrites;
 	const char *completion_cause;
+	int start_event_sent;
 };
 
 /**
@@ -1188,6 +1189,7 @@ static void send_record_stop_event(switch_channel_t *channel, switch_codec_imple
 {
 	switch_event_t *event;
 
+	rh->start_event_sent = 0;
 	if (rh->fh) {
 		switch_channel_set_variable_printf(channel, "record_samples", "%d", rh->fh->samples_out);
 		if (read_impl->actual_samples_per_second) {
@@ -1304,10 +1306,13 @@ static switch_bool_t record_callback(switch_media_bug_t *bug, void *user_data, s
 				}
 			}
 
-			if (switch_event_create(&event, SWITCH_EVENT_RECORD_START) == SWITCH_STATUS_SUCCESS) {
-				switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Record-File-Path", rh->file);
-				switch_channel_event_set_data(channel, event);
-				switch_event_fire(&event);
+			if(rh->start_event_sent == 0) {
+				rh->start_event_sent = 1;
+				if (switch_event_create(&event, SWITCH_EVENT_RECORD_START) == SWITCH_STATUS_SUCCESS) {
+					switch_channel_event_set_data(channel, event);
+					switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Record-File-Path", rh->file);
+					switch_event_fire(&event);
+				}
 			}
 
 			rh->silence_time = switch_micro_time_now();