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View Full Version : DivX3 SBR vs MPEG4 SP DirectShow Decoding speed competition


dimzon
30th April 2004, 11:11
competitors:
DivX 5.1.1
3ivX 4.5.1
ffdshow-20040405


I've created 2 test clips from LOTR3-ROTK using such test.avs:

Mpeg2Source("c:\data\media\spr\lotr-rotk.d2v")
Telecide(order=1,guide=1)
Decimate(cycle=5)
x=last
x.trim(0,135651 )+x.trim(135664,0)
crop(8,60,-8,-64)
UnDot()
LanczosResize(640,272)
removedirt()
Undot()
Deen
trim(last,129000,-30000)
assumefps(160)


I've use ffdShow VFW encoder (aka ffvfw) to encode test.asv at same bitrate to
1) 2-pass DIVX3 (SBC emulation)
2) 2-pass XVID in SP mode (BFrames=OFF,GMC=OFF,QPEL=OFF,H263Matrix)


For each decoders and testclip listed above I create such graph into graphedit:
http://img8.imageshack.us/img8/2636/competition0.PNG


I disable any PP into all decoders and play those graphs. When playback finished i used Windows Task Manager to estimate Decoding CPU Cost in form of CPU Time.
I've got such results on my AthlonXP2000+ 512RAM WinXP Prof SP1:
http://img8.imageshack.us/img8/6550/competition1.PNG

bond
30th April 2004, 11:15
nice, thx :)