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Author Topic: Why is my network doubling or tripling the bitrate on my video streams?  (Read 3096 times)

bs70053

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My setup:

I am currently wirelessly streaming BR rip movies from my PC tower to a PS3.  I have a gigabit connection from the PC to the router (D-Link DIR-825) which is broadcasting (5Ghz 'N') to a D-Link DAP-1522 bridge.  Gigabit connection from the bridge to the PS3.  The router is reporting a 70-75% connection with 240mbps, although I am realistic and don't expect that.

I had been ripping and compressing my BR movies to 4-8GB.  I had never noticed any trouble with these because my network can easily handle the additional traffic if it had been doubling or tripling these.  I recently purchased a 2TB HDD and decided to just rip and not compress a few of my favorites.  So now instead of a 3-10Mbps stream I have 15-45Mbps streams.  I am ripping them straight to an .m2ts container (AVC/AC3) when the original video codec is AVC and converting to .mp4 (AVC/AAC) with Ripbot if the original codec is VC-1.  Neither container makes a difference.

What's happening is that when I stream these uncompressed BRs, the picture and audio stutter and jump (indicating a bit-starved network connection).  When I check the bitrate reported by the PS3, it is showing 80-150Mbps.  I have run these video files through Bitrate Viewer just to be sure, and they are all running at normal bitrates, i.e. <50Mbps.  Somewhere along the line, my network is doubling or tripling the stream. 

I have used both Mezzmo and TVersity as my DLNA servers with the transcoding turned off.  The files playback fine at the expected bitrates on the PC with VLC Media Player.

Also, the problem is not with the wireless bridge.  I was linked with a Linksys WET610N, while working on this problem, I attempted to update the firmware and bricked it.  If anyone needs a DOA WET610N, they can have it for the cost of shipping.  The DAP-1522 is getting a better signal and reporting a higher bitrate ceiling than the Linksys was.

Is there a PC or router setting that could be causing this?  I have even done a reset to restore the factory defaults on my router, but it hasn't made a difference.
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FurryNutz

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Re: Why is my network doubling or tripling the bitrate on my video streams?
« Reply #1 on: August 26, 2011, 03:51:24 PM »

Possibly the connection between the bridge and the router isn't good enough.
I have the save kind of BD set up on my server, I rip them straight to a 2Tb drive. However I don't have any wireless that I steam over. Yet. Heres my setup:
Modem>Router>24pt Gb switch<All wired devices comming off the switch including Server and Boxee.
My xboxes are direct wired to the router for gaming.

Any chance you could test the server and PS3 connected directly to the router or put a switch online and test? Might help narrow down the issue.

Also what wireless modes are you using and what security?
I presume you should be using Single N at 2.4Ghz or 5Ghz? Also AES is best and seems to handle better connections. Try also with out security to test and see.


Also have you set up reserved IP addresses for ALL devices on the router?
 
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Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.