as usual, linux: http://www.dspaudio.com/~jaymz/fishstream-fec-linux.tar.gz
win32: http://www.dspaudio.com/~jaymz/streamserver.zip http://www.dspaudio.com/~jaymz/freenet-encoder.zip So, this is the mythical test of using FEC encoding with 50% redundancy. i've included a binary of the new FEC module, however, you might have to build it yourself - i stole the code from nobody else, who is clearly much better at the whole module thing than I am :) the new test stream is at http://localhost:8892/SSK at kWu5Osv~VAI3-kH7z8QIVxklv-YPAgM/bgc2040-fec.ogg , however, it was only inserted at HTL=5, which means that it's patchy at best, for now (freenet seems ratehr fond of dropping data on the floor still, tho obviously less so now that we're DSB-Free(tm)) - on a clean transient node, I was only able to retrieve the first 4 minutes on my first attempt, and 7 on my second, before the DNF's set in. Better then I'd have done without FEC, but still, kinda sucks. However, things get a lot less pessemistic if you're running a permanent node. it seems that transient nodes are often nigh on useless when it comes to routing..... and the fact that things get better over time means that perhaps I should increase the number of retries (at 3, right now, with htl=htl+5 at the start of each), tho it's possible that this is perhaps a side effect of DNF caching (which i know makes sense in the context of the network blah blah, yeah, i'm aware of it's good points, not flaming) side note: i used to have a lot of success running a permanode behind a nat... i found it routed *much* better than a transient did iun hte same config. weird. But I havn't tried this for ages.... Anyhow, about the FEC, currently, it's implented by using t second chunks, each FEC encoded into n/k chunks. the defaults for these t=60, n=6, k=4, which provides 50% redundancy on each minute of audio, and happens to be a good size that i don't need to use redirects to fit into keys (around 30k per fec block) oh, yeah, connecting and getting the stream started still takes *far* too long for my liking. I'm working on that... that's another one of those things that (a) inserting things at higher htl's and (b) being a permanode both help - fish _______________________________________________ devl mailing list devl at freenetproject.org http://hawk.freenetproject.org/cgi-bin/mailman/listinfo/devl
