BWDIF for VS

[kolak]

https://ffmpeg.org/ffmpeg-filters.html#toc-bwdif

Fairly new deinterlacing filter in ffmpeg. Good results for given speed. Could we get vs port?

[Jukus]

Is it better than QTGMC?

[kolak]

No, but 10x faster and much better than Yadif itself.
QTGMC even with Very Fast preset is still to slow for some usage.

[Jukus]

I don’t understand why some people complain about the speed of QTGMC, I calmly encode DVDs with Very Slow, while somewhere around 65% of the CPU’s resources go to encoding, not filtering. I can watch dvd in real time with Slower in VS Editor. In doing so, I use a CPU that is almost 10 years old.

[kolak]

Try HD
Besides- I don't trip DVDs but use QTMC on 1000s HD masters. Even 72 cores machines don't help.

[Jukus]

I use Fast for BD, 80-90% of the CPU is used for encoding.

[poisondeathray]

Originally Posted by kolak

Try HD
Besides- I don't trip DVDs but use QTMC on 1000s HD masters. Even 72 cores machines don't help.

Did you look at the cuda ktgmc version for avisynth ? If you have fast GPU it could be your answer

[Jukus]

Interestingly, there is a https://handbrake.fr/downloads.php where it is suggested to use Yadif+EEDI2 - it's something incredible

[Blue_MiSfit]

I use bwdif in ffmpeg and am quite happy with it

[kolak]

Originally Posted by poisondeathray

Did you look at the cuda ktgmc version for avisynth ? If you have fast GPU it could be your answer

I got Tesla K80 old but not that bad.
KTGMC looks interesting, but still sort of beta. I need something 99.9% reliable

[kolak]

Originally Posted by HolyWu

I probably would just use yadifmod(clip, order=1, mode=1, edeint=nnedi3(clip, field=3, nns=0)) for a quick and dirty deinterlacing.

It has to be fairly decent, not dirty
QTGMC (Very Fast) or BWDIF quality.
It runs over script which detects progressive parts and these are passed through. QTGMC is good as even if there is some false detection it doesn't look that different than next original frame.

Any suggestion? Tried other filters but somehow QTMC performs the best, but it's relatively slow. Any way to speed up Very Fast preset?

[Cary Knoop]

I don't see much of a point using QTGMC if you use the 'very fast' preset.

Some people want to eat the cake and have it. but you can't!

Doing a good deinterlacing cost computer time.

[kolak]

This is the point- it's still relatively good compared to other filters.

[Jukus]

Originally Posted by Cary Knoop

I don't see much of a point using QTGMC if you use the 'very fast' preset.

Some people want to eat the cake and have it. but you can't!

Doing a good deinterlacing cost computer time.

I completely agree, in the worst case, can use Faster for a new high-quality BD and Slower for dvd, otherwise it makes no sense, can use any one-button converter.

[kolak]

It's used in totally different workflows than ripping BDs/DVDs. Very different world. There are sometimes 100s files a day. No time for any tweaking- you do it at some acceptable quality. If quality is not good enough client will reject.
It still makes perfect sense as other methods leave more deinterlacing 'signs'. I do use yadifmod in some cases (less demanding clients).

[Sharc]

Originally Posted by kolak

https://ffmpeg.org/ffmpeg-filters.html#toc-bwdif

Fairly new deinterlacing filter in ffmpeg. Good results for given speed. Could we get vs port?

https://github.com/HomeOfVapourSynth...ourSynth-Bwdif

[kolak]

a lot!

Lets try it

[Cary Knoop]

Not impressed at all with this bwdif deinterlacer, QTGMC makes spaghetti out of it!

[kolak]

It's for speed, not quality
What is the difference in speed against QTGMC?

[richardpl]

What is QTGMC actually? NNEDI3 or EEDI3 or EEDI2 or something completely else?