On Sunday 29 Dec 2002 12:02 pm, [EMAIL PROTECTED] wrote:
> I am trying to convert some MJPEG that I captured with my G400 Marvel
> to MPEG2. I have tried an mpeg2enc coomandline sever al times but
> it's too slow. The best I can get (with bad quality switches) is
> 2fps. But at that rate every hour I record will take 15 hours to
> convert.
What kind of CPU are you using. Speeds *that* low would imply something
without multimedia acceleration. I.e. a pre-MMX x86 CPU or non-AltiVec
PowerPC.
> Is there a better MPEG2 encoder out there that doesn't take nearly so
> long to encode?
I believe ffmpeg had a fairly quick MPEG-1 encoder. However, if you don't
have MMX/AltiVec everything will be pretty slow.
> What mpeg2enc switches would yield the best speed (at the cost of
> quality of course)?
-4 4 -2 4
The cost in quality is probably not noticeable over default.
If you are encoding non-interlaced material you can also use -I 0 which makes
things much faster by skipping the special interlace motion estimation
calculations. Cost in quality should be zero (given the right material).
Andrew
-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
Mjpeg-users mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
