Avisynth: Way to measure filter speed?
How can you compare and measure filter speeds.
I want to evaluate and measure the speed at which these filter process video's (although I know its very subjective to the source). Lremovedust_YV12() Degrainmedian() STMedianfilter() Convolutions3d() ----YV12 Hqdn3D() removegrain() At their default values, for subtle grain removal and for speed. If someone has already done similar comparison/knows of it, please direct me to the thread. |
Hi,
it's quite easy: just make an avisynth script with each filter, and see how many time HC last encoding a quite small clip (using slicer to extract a representative clip of a movie, for example). With slicer, you should get differents kind of scene, and if you're not using others programs meanwhile, you will have a quite good speed comparison. Fabrice |
There's kassandro's AVSTimer, www.avstimer.de.tf
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So here are the results :
2894 frames - HCEnc 0.17, 2-pass, Normal Q No filter - 3:03 - 58922KB removegrain(mode=2) - 3:15 - 58925KB Removegrain(mode=2).STMedianfilter(3,3,1,1) - 3:44 - 58914KB STMedianfilter(3,3,1,1) - 3:50 - 58924KB Lremovedust(17,1) - 3:51 - 58949KB DeGrainMedian(limitY=5,limitUV=5,mode=3) - 4:00 - 58926KB hqdn3d(3,2,4,4.5) - 4:25 - 58923KB Convolution3d(preset="movieHQ") - 4:34 - 58914KB Have included the file size just in case ppl were interested in the compression levels also. |
Uhm, the compression cannot be measured as you did a 2-pass encode :wink:
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But you cannot discuss compression levels if you use a 2-pass encode. The avg bitrate will always be nearly (if not completely) the same in every encode no matter what filter you use. If you want to measure compression at the same time as the performance of the filter, you need to use the CQ mode in HC.
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