[FFmpeg-user] Video filtering for chroma dot crawl and rainbow effect

[Carl Eugen Hoyos]

Christian Johannesen <chrisjohannesen <at> gmail.com> writes:

> Looked through all the documentation for FFMPEG and I can't 
> seem to find any video filters that deal with chroma dot 
> crawl & rainbow artifacts in files captured from analog 
> tape formats.

One of the reasons we always ask for command line including 
complete, uncut console output is that it often helps 
understanding the original issue.

I am not convinced I understand your issue but maybe you 
are searching for the interl option of the scale filter?
$ ffmpeg -i test_720x486i_dotcrawl.mov -vf scale=interl=1,fieldmatch

I opened ticket #5187 because of the green lines fieldmatch 
produces.

Carl Eugen