Mastroka ==> Matroshka

Media container format named after the wooden painted doll in a doll, in a
doll ....

Not an expert in Russian language, but they sell, or used to, these dolls
together with former Russian military hats in truck loads in European
outdoors markets.

-T

On Thu, Oct 24, 2024, 15:42 American Citizen <[email protected]>
wrote:

> A follow up here.
>
> The "-crf 0" setting for ffmpeg has to be used to insure the highest
> image quality when converting from one format (animated gif) to another
> Mastroka .mkv.
>
> The video size dropped to about 1/2 the original animated gif size.
>
> The ffmpeg defaults don't seem to handle the 800x800 animated gif files
> very well, much image degradation is visible, when doing the conversion
> to mp4 format.
>
> ffmpeg does a better job on the 1000x1000 pixel animated gif files for
> some reason.
>
> But forcing the video quality with the crf option = 0, is the correct
> way to preserve image quality.
>
> Randall
>
> P.S. I happen to know that the true image quality from GOES-16 and
> GOES-18 and now GOES-19 far surpasses what is on the standard image
> servers. In fact, the GLM lightning mapper is receiving 500 images/sec..
> but very few individuals have computing resources capable of handling
> this requirement.
>
> For some reason the meso-loop images are higher quality then the
> standard ones on the NOAA webpage.
>
>
>

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