[PLUG] question on converting gif files to mp4 video

American Citizen website.reader3 at gmail.com
Thu Oct 24 19:42:35 UTC 2024


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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