Streaming: udp byte order(package structure)

[Tommy_y]

Previously, I posted a topic to ask for how to chech the network stream status to make sure the stream can be played smothly:
viewtopic.php?f=32&t=101209
I tried events catching(helpless) and libvlc_media_stats_t data chech(unefficient), results detialed in the previous post.

So, I decide to check the packages received from Transport Layer, but I am wondering what's the UDP package structure(or Byte Order) streamed out by a VLC player with option like:
":sout=#duplicate{dst=udp{mux=ts,dst=MyIP:SpecificPort},dst=display"

Is it following the rules defined in RFC 3550?