[MPlayer-users] Encoding too slow on AMD Athlon 64 3000+ comparing with Pentium Celeron M 1, 4

[Corey Hickey]

Martin Kamín wrote:
> Dne st 29. března 2006 13:02 Martin Kamín napsal(a):
>> Dne út 28. března 2006 20:36 Corey Hickey napsal(a):
>>> Martin Kamín wrote:
>>>> The whole process runs well and it is done well, but comparing encoding
>>>> time on my Athlon 63 3000+ with old Pentium Celeron M notebook,
>>>> diference is really HUGE.
>>> That's odd. Offhand, I would expect 50-70fps xvid encoding of a
>>> normal-resolution movie on a 3000+.
>> Yeaaa, I would expect it too :(
>> I tried this one, without frameno:
>> mencoder -noaspect -oac mp3lame -lameopts vbr=3:br=96 -ovc xvid
>> -xvidencopts
>> bitrate=1000:vhq=1:me_quality=6:trellis:chroma_opt:max_bframes=0:hq_ac:pass
>> =1 ../$file -o $file-final.avi
>> butt SLOW SLOW... 7 frames / second
> 
> Another one example, when encoding lavopt, 
> mencoder ../$file -oac mp3lame -lameopts vbr=3:br=96 -ovc lavc -lavcopts 
> vcodec=mpeg4:vbitrate=1200 -o $file-final.avi
> 
> I got 42 frames / second.

That seems kind of low, but maybe not absurd. It's a little bit 
difficult to be sure what's going on without having access to the same 
source file.

Can you please download this sample:
http://www.mplayerhq.hu/MPlayer/samples/Matroska/matrix/Matrix.Reloaded.Trailer-640x346-XviD-1.0beta2-HE_AAC_subtitled.mkv

...and try encoding it with the following commands. The times for my 
system (overclocked 3400+ at 2.56 Ghz) are listed below each command. 
Roughly, I think your 3000+ should take about 1.3 times as long as mine.

time mencoder -nosound -ovc lavc -o /dev/null \
Matrix.Reloaded.Trailer-640x346-XviD-1.0beta2-HE_AAC_subtitled.mkv

real    0m23.717s
user    0m22.251s
sys     0m0.288s


time mencoder -nosound -ovc xvid -xvidencopts bitrate=800 -o /dev/null \
Matrix.Reloaded.Trailer-640x346-XviD-1.0beta2-HE_AAC_subtitled.mkv

real    1m4.684s
user    1m3.753s
sys     0m0.484s


If you end up getting appropriate-looking times, then we know for sure 
it's something peculiar about your source file or how you're encoding 
it. Otherwise, something else is weird.

-Corey