I am trying to append two streams from different sources. One using gocoder and the other from wirecast. I want to append the gocoder output with the wirecast. Both the audio and video codecs are same . But bitrates are different. It is not getting appended successfully and the only till the first stream is getting played on the appended video. Is it possible to append streams from different sources successfully? If yes, what is my problem? is it about the bitrate?