QTGMC Deinterlacing Script (v3.384)

[ravewulf]

Originally Posted by StainlessS

ravewulf, you should have done timing tests with/without YUY2 hacks in-situ, to tell if any benefit in removal, and then post
results, removal just for the sake of it is not a good idea.

In general, removing the SSE2Tools Planar YUY2 hacks to use the built in YV16 support is a good idea as well as creates cleaner code. But here are the numbers:

AviSynth 2.6 MT - Athlon II x4 640 OC'd to 3.6 GHz
500 frame 720x480 60i - 1000 frames of output
MT Mode not used, EdiThreads=1 to force single threaded performance for testing

3.33 2016-12-06 mod
YUY2 4.608 fps
YV16 5.591 fps

3.34
YV16 5.608 fps

The YV16 numbers are very close, but the old YUY2 code is slow. The main benefits are always using the YV16 path when possible and having less code to maintain (3.33 2016-12-06 mod is 91.4 KB, 3.34 is 77.1 KB). As I said in a previous post, YUY2 support could easily be added back to QTGMC by immediately converting to YV16 and converting back to YUY2 before returning at the end.