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+--- Thread: Hybrid always encodes TFF on BFF MPEG2 to AVI (/thread-3779.html)
Hybrid always encodes TFF on BFF MPEG2 to AVI - Hushpower - 17.07.2024
I'm trying to encode a BFF MPEG 2 file into a UT Video AVI with QTGMC Bob. I have set the "overwrite input scan type" to BFF.
The encode always comes out progressive but with the TFF.
The source MPEG 2 is on Google Drive here:
https://drive.google.com/file/d/1B_fWD8deRdZES7lNtbsx3zf99VQHuCu1/view?usp=sharing
The forum won't accept my attachment. I click in the Attachments box, choose the file then click "Open", the window closes back to the message but nothing happens after that.
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Selur - 17.07.2024
Quote:The encode always comes out progressive but with the TFF.What? You can't have progressive and a scan order,...
When I load your file, Hybrid properly detects it as bff and the UT video command line looks like:
-vcodec utvideo -pred left -slices 0 -flags +ildct+ilme -vf setfield=bff -pix_fmt yuv420p -colorspace bt709=> share a debug output of what you are doing and I'll look at it after work.
Cu Selur
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Hushpower - 17.07.2024
I can't paste text to quote it.
The top field frame is coming out first (from QTGMC Bob).
Debug attached on Google Drive, thanks Selur.
https://drive.google.com/file/d/1V2-lppaJ7HIw20tyAYh38jxjafEi6loq/view?usp=sharing
There's something wrong with the forum's attachments system. I'm using Chrome (Win11) and after I select the file to be attached (MPG or a ZIP), nothing happens.
Oh well, there it is, it's attached.
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Selur - 17.07.2024
attachment worked,..
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Selur - 17.07.2024
Had a quick look at the debug output, according to the debug output:
32bit Avisynth QTGMC was used for deinterlacing, but there the wrong field order was used:
AssumeTFF()
QTGMC(Preset="Fast", ediThreads=2)
# scaling to 768x614
Spline36Resize(768,614)
# setting output fps to 50.000fps
AssumeFPS(50,1)=> will look at it after work
Cu Selur
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Selur - 17.07.2024
In Avisynth, it's also fixed, if you set "QTGMC Avisynth->Order" to "-1".
Cu Selur
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Selur - 17.07.2024
Send you a link to a dev version which removes QTGMC Order, which should fix the problem.
Cu Selur
RE: Hybrid always encodes TFF on BFF MPEG2 to AVI - Hushpower - 18.07.2024
Excellent, thanks Selur, the dev version works a treat.
