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View Full Version : Encoding hdtv to mpeg4


chadamir
19th March 2004, 21:02
After deinterlacing and resizing and taking out each to see which was bottlenecking I cannot seem to get better than an average of 3.5 fps. Is this normal for converting from 1080i to 540p? Heres the avisynth script I'm using:

LoadPlugin("c:\Program Files\Avisynth 2.5\plugins\mpeg2dec3.dll")
mpeg2source("e:\testjl.d2v")
crop(0,0,-12,-8)

I have an athlon xp 1700 and im using virtualdub and avisynth

timecop
20th March 2004, 03:58
sounds about right.
a basic script with MPEG2Dec3 + SeparateFields + SelectEven + Resize to 640x480 gets about 8-12fps on p4b 2.6.
(Using DivX 5.02)

Why don't you resize in Avisynth and use "fast recompress" in virtual dub during encode, that might speed things up a bit.
But in general, AMD machines aren't exactly well known for breaking benchmarks during video encoding.