问题
I am working on an iOS app which plays multiple rtsp streams at a time. i have integrated latest Gstreamer binaries and followed demo tutorials from Here
i added a rtsp URL to test my stream , but it is not working.
Gstreamerbackend is not adding pipeline.pipeline is nil. delegate methods are not called
When application runs , it shows message in the logs "Creating pipeline" , but nothing happens. shown in screenshot below.
来源：https://stackoverflow.com/questions/27775181/gstreamer-pipeline-is-not-added-and-remain-nil