Sorry, I don't understand what you're trying to achieve Maybe an example can help.
Apart from that, maybe saving you the trouble right ahead, rtmp live streams aren't yet possible with OnlineVideos.
Oh btw: nice work with all the French channels! Just noticed them on the SiteManager
Sorry that url won't work due to the nature how rtmp is currently handled. Restreaming it over the local http proxy requires a fixed length of the file taken from the metadata. It's on my todo list to get that working in some way.