[vlc-devel] Observations on theora encoding

James MacLean macleajb at ednet.ns.ca
Tue Jul 27 00:21:48 CEST 2004


Some things I have noticed ;):

Latest SVN on Linux

. Aspect of my attempts looks like 16:9 when it starts as 4:3. I remember 
some changes being made a while back regarding aspect and I am _fairly_ 
confident the aspect looked correct prior to that. Tried at full size and 
scale=0.5.

. MPlayer runs with audio and video way out of sync, yet VLC plays with 
everthing appearing well synced.

. Even though -vvv show that vlc probes correctly the frame rate of the 
source, I still get "Missing frame rate, assuming 25fps" from 
modules/mux/ogg.c. Source is NTSC. If I hack that section of ogg.c to be 
29.970, the resultant file is definitely not in sync.

Hoping this type of report helps,
JES
-- 
James B. MacLean        macleajb at ednet.ns.ca
Department of Education 
Nova Scotia, Canada
     

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