[Live-devel] video quality

Ross Finlayson finlayson at live.com
Tue Dec 2 16:37:14 PST 2003


At 04:21 PM 12/2/03, you wrote:
>I tried to unicast stream a MPEG2ES with liveMedia on the server side
>and Mplayer on the client side.
>It worked, but the quality was horrible (very blocky), same happened
>to VLC (CVS version).

Does the same problem occur if you run the server 
("testMPEG1or2VideoStreamer"?) and the client player on the same computer?

For MPEG-2 video streaming, a 100 Mbps Ethernet (or higher) is 
recommended.  If you're using just a 10 Mbps Ethernet, you'll likely 
experience packet loss, which will cause the artifacts that you're seeing.

>Is that something to do with the livemedia server side library or the
>players on the clients?

As another poster on this mailing list suggested last week, you could try 
increasing
         /proc/sys/net/core/rmem_max
on your Linux client machine.  (Preferably, increase it to at least 
2,000,000 bytes, because that's what MPlayer tries to use for a socket 
buffer size.)


	Ross Finlayson
	LIVE.COM
	<http://www.live.com/>



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