Problems with converting swf (video) into gifs.

JJZ-Godd

Member
Sep 29, 2017
311
189
I've been trying to convert a video swf file into a gif, but I either get an error or this message:

[ Could not find codec parameters for stream 0 (Video: none, none): unknown codec . Decoder (codec none) not found for input stream #0:0 ]

Can anyone please help in explaining what that message means, and or generally explain the problem? Thank you.