[rtmpdump] rtmpsrv does not work on certain streams

[Steven Penny]

Here
http://lists.mplayerhq.hu/pipermail/rtmpdump/2011-March/001320.html
Howard noted that it would be impossible to generate a working rtmpdump command
line for ustream.tv server. I think this is not the case.

Granted that post is quite old, but the issue with rtmpsrv persists. Using
rtmpsuck output you can in fact generate a working rtmpdump command

$ rtmpdump -r rtmp://ustreamlivefs.fplive.net/ustream4live-live/ -W http://stat
ic-cdn1.ustream.tv/swf/live/viewer.rsl:354.swf -y stream_live_1_1_12632253 -v -
o a.flv
RTMPDump v2.4-78-g04c6ba8
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
Connecting ...
INFO: Connected...
Starting Live Stream
INFO: Metadata:
INFO:   framerate             30.00
INFO:   width                 854.00
INFO:   height                480.00
INFO:   videocodecid          avc1
INFO:   videodatarate         1150.00
INFO:   videokeyframe_frequency240.00
INFO:   audiocodecid          mp4a
INFO:   audiosamplerate       44100.00
INFO:   audiochannels         2.00
INFO:   audiodatarate         128.00
1019.905 kB / 0.18 sec

However as the other user noted this server causes rtmpsrv to choke.