Use ffserver, ffmpeg, rtmpdump, VLC to convert live RTMP stream into UDP multicast

[secretsquirrel]

I've been banging my head against the desk for a while now with this problem, but hopefully one of you can help me. I'm attempting to use rtmpdump and VLC to convert (redirect) a couple of live RTMP streams into UDP multicasts.

When I try

rtmpdump.exe -v -r rtmp://stream2.france24.yacast.net/france24_live/en -a france24_live/en -W http://www.france24.com/en/sites/all/modules/maison/aef_player/flash/player.swf -p http://www.france24.com/en/aef_player_popup/france24_player -y f24_liveen | "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" -

VLC pops up and the video plays perfectly. However, when I try

rtmpdump.exe -v -r rtmp://stream2.france24.yacast.net/france24_live/en -a france24_live/en -W http://www.france24.com/en/sites/all/modules/maison/aef_player/flash/player.swf -p http://www.france24.com/en/aef_player_popup/france24_player -y f24_liveen | "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe" - :sout-all :sout=#duplicate{dst=udp{mux=ts,dst=239.1.1.1:9000},dst=display} :ttl=20 :sout-keep

The audio shows up, but the video disappears on the local display. Tuning into the multicast confirms the video PID has dropped. VLC is pumping out the error that duplicate PCRs are being output, so I'm guessing this is why the video is being dropped. Any ideas on how to fix this?

Thanks in advance
-SS