When use source config stream, Publisher always 0

[a-wing]

If use sources

[stream]                                                                                                                                                                                                                
                                                                                                                                                                                                                        
[[stream.sources]]                                                                                                                                                                                                      
stream_id = "src"                                                                                                                                                                                                       
# - RTSP: rtsp://username:password@host:port/path                                                                                                                                                                       
# - SDP file: file:///path/to/file.sdp or /path/to/file.sdp                                                                                                                                                             
# url = "file:///path/to/file.sdp"                                                                                                                                                                                      
url = "file://./i.sdp"

No any status. but, it's work. There look like some confusing