[PLUG] question on converting gif files to mp4 video

American Citizen website.reader3 at gmail.com
Thu Oct 24 01:14:41 UTC 2024


Hello:

The NOAA stores graphics on their webpage 
https://cdn.star.nesdis.noaa.gov/FLOATER/data/EP122024/GEOCOLOR/

The graphics are arranged by time, latest time at the bottom.

If you carefully observe the file size, you can locate the gif videos.

Right now I am watching Hurricane Kristy in the eastern Pacific Ocean 
which has strengthened to about Category 4.

Question:

I tried to use "ffmpeg -i NOAA_file.gif output.mkv" but the image 
quality suffers. It is even worse, if I choose the mp4 file output.

What settings must ffmpeg receive in order to create a video file of the 
highest possible quality, from these NOAA gifs?

Randall

p.s. Has anyone worked with the data from the GOES-16 and GOES-18 
directly to obtain high quality image files?



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