a. Unless you use a bobber (for QTGMC enable 'Bob') there is no way you are lossless, since you throw out up to half of the motion information.
b. You might want to read up on the basics on what happens during deinterlacing.
I doubt that QTMC can even be fully lossless. (A stupid bobber might be more lossless, but will look worse.
)
QTGMC is a quicker variant of TGMC which is described as:
(no clue what made you thing that QTGMC is lossless to start with)
Cu Selur
b. You might want to read up on the basics on what happens during deinterlacing.
I doubt that QTMC can even be fully lossless. (A stupid bobber might be more lossless, but will look worse.

QTGMC is a quicker variant of TGMC which is described as:
Quote:Motion-compensated bob deinterlacer, based on temporal Gaussian blurring. Reduces noise/grain of the source and does NOT leave the original fields unchanged. Output is rich with details and very stable. It is SLOW.and even with the changes QTGMC made over the years I doubt it is lossless.
(no clue what made you thing that QTGMC is lossless to start with)
Cu Selur
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Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.