[FFmpeg-user] (de)-interlacing question

[Toerless Eckert]

On Fri, Nov 25, 2016 at 05:58:58PM +0000, Andy Furniss wrote:
> Yes, that one is 50fps duped. Maybe they do it so they can switch
> between 25 and 50 easily within the same file if needed.
> 
> Strange encode, though = this one has cabac but no b frames.

Didn't try to analyze it, but that might explain why i can produce
lower bitrate through re-encoding. Pretty sure the folks in TV editing
are happy if they just got their SW tools to run at all with all
those nerd knobs they don't understand ;-)

> Whoever scaled down the high up out door shots, should really learn how
> to do it properly to avoid artifacts.

Could be moiree directly from camera.

I like the scene from 11:20 to 11:30 with a moving LCD panel. It's great
to check out quality of re-encoding with deinterlacing (using the interlaced
pal version from the live broadcast). Alas, the obvious became clear:
if i downscale the HD version, the result is better than just using the
interlaced pre-downscaled version.

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