ffplay -i http://192.168.1.2:7522/upnp/channelstream/1.ts - | ffmpeg -f yuv4mpegpipe -i - -vcodec libx264 -vpre libx264-hq foo.mp4


Argument provided as input filename, but 'http://192.168.1.2:7522/upnp/channelstream/1.ts'
was already specified.
pipe:: Operation not permitted