[streaming] Re: Streaming mpeg4

[Benjamin Pracht]

Le vendredi 27 janvier 2006 à 10:15 +0100, Tore Erntsen a écrit :
> Hi there !
> 
> I want to stream MPEG4 video on network between winxp and 2003 servers. I 
> have downloaded VLC, and have successfully startet to use the software.
> 
> I have used several interfaces, and it seems to be working. But I struggle 
> with the quality of the video. I have used the following command :
> 
> "C:\Program Files\VideoLan\VLC\VLC.exe"  -vvv 
> d:\iScan\iscan1_20060123_141915.avi 
> :sout=#transcode{vcodec=DIV3,vb=2000,scale=1,acodec=mp3,ab=96,channels=2}:duplicate{dst=std{access=mmsh,mux=asfh,url=:5000}} 
> --file-caching=5000  --sout-keep --repeat
> 
> I connect with a WMP (on a xp machine), and it works, but the quality is 
> bad. How is it possible to stream data with a higher quality. If I open the 
> .avi file directly in WMP or VLC without streaming, the quality of the video 
> is good....
> 

Well, you'll always loose quality when transcoding. You may want to try
to stream without transcoding. Depending on the original codec, WMP
might be unable to read the stream however. An alternative to achieve an
at least a slightly better quality would be to transcode your file to
DIV3 once for all, using another tool than VLC, and using a 2 pass
encoding (your bitrate will vary along the file that way however).

-- 
BigBen

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