don't save total duration if hls_total_file is not configured

@@ -73,7 +73,7 @@ const char* _srs_version = "XCORE-"RTMP_SIG_SRS_SERVER;
 #define SRS_CONF_DEFAULT_HLS_PATH "./objs/nginx/html"
 #define SRS_CONF_DEFAULT_HLS_PATH "./objs/nginx/html"
 #define SRS_CONF_DEFAULT_HLS_M3U8_FILE "[app]/[stream].m3u8"
 #define SRS_CONF_DEFAULT_HLS_M3U8_FILE "[app]/[stream].m3u8"
 #define SRS_CONF_DEFAULT_HLS_TOTAL_M3U8_FILE ""
 #define SRS_CONF_DEFAULT_HLS_TOTAL_M3U8_FILE ""
-#define SRS_CONF_DEFAULT_HLS_TOTAL_FILE "[app]/[stream]_total"
+#define SRS_CONF_DEFAULT_HLS_TOTAL_FILE ""
 #define SRS_CONF_DEFAULT_HLS_TS_FILE "[app]/[stream]-[seq].ts"
 #define SRS_CONF_DEFAULT_HLS_TS_FILE "[app]/[stream]-[seq].ts"
 #define SRS_CONF_DEFAULT_HLS_TS_FLOOR false
 #define SRS_CONF_DEFAULT_HLS_TS_FLOOR false
 #define SRS_CONF_DEFAULT_HLS_FRAGMENT 10
 #define SRS_CONF_DEFAULT_HLS_FRAGMENT 10

@@ -833,6 +833,7 @@ int SrsHlsMuxer::segment_close(string log_desc)
 			}
 			}
 			srs_info("write total m3u8 %s success.", m3u8_total_file.c_str());
 			srs_info("write total m3u8 %s success.", m3u8_total_file.c_str());
 
 
+			if (!total_url.empty()) {
 				this->total_duraion += currentSeg->duration;
 				this->total_duraion += currentSeg->duration;
 				SrsFileWriter total_writer;
 				SrsFileWriter total_writer;
 				//write total duration to total
 				//write total duration to total
@@ -846,13 +847,16 @@ int SrsHlsMuxer::segment_close(string log_desc)
 
 
 				if ((ret = total_writer.write((char*) ss_total.str().c_str(),
 				if ((ret = total_writer.write((char*) ss_total.str().c_str(),
 						(int) ss_total.str().length(), NULL)) != ERROR_SUCCESS) {
 						(int) ss_total.str().length(), NULL)) != ERROR_SUCCESS) {
-							srs_error("write total temp:%s failed. ret=%d",(char*) total_tmp.c_str(), ret);
+					srs_error("write total temp:%s failed. ret=%d",
+							(char* ) total_tmp.c_str(), ret);
 					return ret;
 					return ret;
 				}
 				}
 
 
-			if(rename(total_tmp.c_str(), total.c_str()) < 0) {
+				if (rename(total_tmp.c_str(), total.c_str()) < 0) {
 					ret = ERROR_HLS_WRITE_FAILED;
 					ret = ERROR_HLS_WRITE_FAILED;
-			            srs_error("rename total file failed. %s => %s, ret=%d", total_tmp.c_str(), total.c_str(), ret);
+					srs_error("rename total file failed. %s => %s, ret=%d",
+							total_tmp.c_str(), total.c_str(), ret);
+				}
 			}
 			}
 		}
 		}