rtmpdump : handshake failed

[velovert]

Hi, I am trying to download streaming videos of a public commission for a university research project but I always get the same error message with rtmpdump:
RTMP_Connect1, handshake failed

The command I used is :

rtmpdump -r rtmpt://38.96.148.250:80/vod/mp4:2012-05-22-allocution.mp4\ -a vod\ -y mp4:2012-05-22-allocution.mp4\ -f "LNX 11,2,202,291"\ -W https://www.ceic.gouv.qc.ca/typo3con...es/player.swf\ -p https://www.ceic.gouv.qc.ca\ -o 2012_05_22_allocution.flv

I also tried with flvstreamer; the results are somewhat better: the download starts but it stops after a few seconds
command:
flvstreamer -r rtmpt://38.96.148.250:80/vod/mp4:2012-05-22-allocution.mp4 -o CC_2012_05_22.flv

I am currently on xubuntu 12.20, using rtmpdump v2.4


The site I am trying to DL from : https://www.ceic.gouv.qc.ca/audience...qaudiences_pi1[uid]=64cHash=dc3dbf8e3b6a8df4725e56ee82480f48

Thank you if you can help!