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Do you know how to convert an animated GIF (only two pics in loop) to FLV or AVI?

I didn't search for a Microsoft alternative that maybe could run with WINE, because I really prefer a native one; also a java version will be fine.

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So guys, I wish I could give the bounty to all of you! I found the right way to achieve what I was trying to do by mixing your commands. The result is "convert input.gif -coalesce 'frame%02d.png'" and "ffmpeg -r 1 -i 'frame%02d.png' output.flv". (I gave a +1 to all of you, but for the bounty...I really don't know!) Thanks again to everyone that helped me so far, you are really great! – dag729 Feb 12 '10 at 2:23
You should pick one randomly. :) – Iain Feb 14 '10 at 14:00
Maybe I should answer to myself with the right code, and then give to me the bounty! :D But I suppose that will go to the guy with more votes, instead. – dag729 Feb 14 '10 at 22:25
From the FAQ: "The highest voted answer created after the bounty started with at least 2 upvotes will be automatically accepted. Half the bounty will be awarded to the owner of that answer." --- Why the bounty went to JohnT and not to WhiteQuark, since I didn't decided myself? – dag729 Feb 15 '10 at 20:43
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3 Answers

up vote 4 down vote accepted
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ffmpeg should be able to do this all by itself:

ffmpeg -f gif -i infile.gif outfile.flv

If you prefer a GUI tool, Format Factory can do this, and will run under WINE.

alt text

No need to worry, it's available in English!

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No luck even with that command...I've tried with different gifs – dag729 Feb 9 '10 at 17:12
@dag729 What about FormatFactory? – John T Feb 11 '10 at 0:46
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up vote 5 down vote

Try doing this in console:

convert image.gif 'frame%02d.png'
ffmpeg -r RATE -i 'frame%02d.png' movie.flv

Replace RATE with needed framerate, e.g. 2 for 2 frames per second.

You'll need two packages: imagemagick and ffmpeg.

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+1, but can't ffmpeg do this in one shot? – DaveParillo Jan 31 '10 at 20:09
It only translates one frame of gif, and I wasn't able to find any options regarding. – whitequark Jan 31 '10 at 20:21
It doesn't did the trick...all I get is a kind 0f 19:6 (yes, not 16:9) video where you cannot see anything! :D I'm still searching. Thank you for the "convert" advice: I have it but I didn't remember that ImageMagick was that featured! – dag729 Feb 2 '10 at 16:20
Try doing mencoder "mf://frame*.png" -mf fps=RATE -o output.flv -ovc lavc -lavcopts vcodec=flv instead. – whitequark Feb 2 '10 at 19:20
same output... :( – dag729 Feb 4 '10 at 13:31
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up vote 1 down vote

Try this with ImageMagick and ffmpeg :

convert original.gif -coalesce out.gif
ffmpeg -f gif -i out.gif result.flv

Optimizing the gif with ImageMagick before converting to flv is done to resolve transparency problems.

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