mobile-ffmpeg calls ffmpeg to parse out media information:

https://github.com/tanersener/mobile-ffmpeg/blob/master/ios/src/MobileFFmpeg.m#L180

This call will block forever if the stream source is live video i.e. MPEG-TS.

Instead, we should consider using ffprobe which does not block parsing live streams and should simplify the media information parsing code significantly due to the machine readable output of ffprobe:

https://ffmpeg.org/ffprobe.html#Description