[streaming] Streaming bitrate tolerance (transcoding options)

[Martin Forget]

Hi everyone,

i am trying to HTTP stream live video to bandwidth limited (3Mbps  
DSL) clients.


i am using the following transcoding line:
vlc -vv udp://@{some multicast mpeg2ts feed} --sout \
"#transcode 
{vb=1600,width=640,bframes=2,noise_reduction=250,vt=100000,bt=100000,  
hq=rd,trellis,height=480,deinterlace,vcodec=mp4v,keyint=150,mpeg4_matrix 
,strict_rc}:std{access=http,mux=ts,url={myserver:port}}"


this line gives me impressively good quality at average bitrates  
around 1.6Mbps

this problem is during hard to encode scenes, instead of degrading  
the video quality, the bitrate increases  to 3 or even 5Mbps
(monitoring with iptraf)  which creates video hang on the 3Mbps dsl  
clients.

i have tried a bunch of combinaisons of vt and bt arguments but both  
don't seem to have any effect.


Does anyone has advice on how to get a more CBR stream?

thanks everyone in advance.

-mforget at vdn.ca



-- 
This is the streaming mailing-list, see http://www.videolan.org/streaming/
To unsubscribe, please read http://www.videolan.org/support/lists.html