Ok cool as i said i have a server in a DC in Sydney Australia which may be perfect to check out latency issues. Im prob not so cool to put the ip in an archived list so i guess someone email me offlist for the url :\
joseph wamicha wrote: > Hi Dan, > > Thanks alot for your very clear and concise explanation. It will help > us all > so much as we do our tests. Also, it will now be much easier to help out > with patches where I can manage to understand the red5 streaming > issues; it > is very hard! > > Thanks once again. > > On 3/21/07, Dan Rossi <[EMAIL PROTECTED]> wrote: >> >> Hi, >> > Hi Dan, >> > >> > You have been testing live streaming much longer than most of us so if >> > I get >> > you right, red5 has had the following issues for live streaming: >> Im not sure about longer my very first post here was july last year >> ?? :) >> >> > >> > 1. Heap space errors for large files. This is because of mina. >> Sorry i think I got you confused, there was java memory heap errors with >> red5 last november for videos larger than 46MB to be exact. This was >> fixed. >> >> The mina issue i mentioned about was suggested to me here >> >> http://jira.red5.org/browse/SN-1 >> >> Ive logged every single comparison test i can do here, it was painful >> and time consuming :\ >> >> the problem with vod buffering problems which red5 seems to have an >> issue with latency and is unable to handle the video data to "push" more >> bits down the connection to keep the buffer length in check which seems >> both FMS and wowza seem to do. So if you are a few k's from your server >> in a data centre you are fine and buffer lengths of 1 minute, if you are >> inter-continental across underwater cabling like I am then the problems >> start to arise i think. Well we've had issues with people broadcasting >> from brazil to our DC in NY, and from Sydney to NY. Its that bad we've >> had to move the short clips back to progressive download as i did in >> november, however we added scrub features into our player so was just a >> test to see how stable red5 is with it. So in terms of memory and >> resources stability is perfect maybe a little more cpu than i like (P4 >> 3G 2G of ram) about 20% usage so far compared to IIS with the same >> traffic its pretty much 0% :) >> >> > 2. Buffering issues. What do you think is causing buffering problems? >> >> See above. >> > 3. Live delay. Audio/Video is out of sync? What do you think is >> > causing this >> > for live streaming? >> Well from the previous comments live delay shows up as 0 , i get the >> negative timestamp warnings, its streaming at 150k so no problem with >> buffering however a 180k vod still has ther same buffer problem on a >> 24MB adsl conn so its not that ! We've teried every config pososible it >> seems streaming at 80 video quality seems to make the frames stick less, >> streaming at 30fps seems to give alot of headroom to accomodate on >> playback so red5 is doing between 9 and 16fps so thats ok. The issue >> lots of us are experiencing as with my case is it will play the frames >> smooth for 3 seconds, stick, play frames smooth for another 3-5 seconds >> stick and over and over. >> >> Im just so hoping its related the the vod problem so if thats fixed so >> is the live issue. >> >> Back to the comparison, red5 streamed live better than fms which caused >> rebuffering, maybe its because of the bandwidth limits set but i got no >> error about it. Wowza rebuffered also on live streaming, but both wowza >> and fms was perfect with vod so cancels out bad route issues to servers. >> >> > >> > What other issues might you be having? I seem to be hitting the same >> > issues >> > you speak about. For example, when I begin loading files over >> 300MB, it >> > sometimes fails to play. >> >> >> the only issue i have is on first load the buffer of 8 seconds is empty >> again so rebuffers and then when it goes to play it starts at 8 seconds >> not 0 seconds ! No major issue with 300MB files. >> >> >> >> _______________________________________________ >> Red5 mailing list >> [email protected] >> http://osflash.org/mailman/listinfo/red5_osflash.org >> > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Red5 mailing list > [email protected] > http://osflash.org/mailman/listinfo/red5_osflash.org > _______________________________________________ Red5 mailing list [email protected] http://osflash.org/mailman/listinfo/red5_osflash.org
