There is similar question here exporting-animated-gifs-animationrepetitions-1-doesnt-work

But the accepted answer there no longer works in 11.3, which is to use "AnimationRepetitions" -> 0 as it gives error

Export::erropts: The value 0 specified for the option AnimationRepetitions is invalid.

I need the animated gif file to play once and stop. By default, with no options, the animation in the Chrome browser always plays 2 times and then stops. I also tested it in FireFox.

The help page on AnimationRepetitions does not say anything about how to make it play only once. Using "AnimationRepetitions" -> 1 has no effect also, it plays 2 times always then stops. Has this changed in 11.3 from the time of the accepted answer above?

Here is MWE

   Grid[{{Row[{"time ",t}]},
     Plot[Sin[t x],{x,-2 Pi,2 Pi}]

loading the above animation to the browser (drag the file and drop it on a web page that is open), will show it plays 2 times.

question: How to make it play only once in 11.3? Is there other options to use? Version 11.3 on windows 7 home edition.

  • 2
    $\begingroup$ I suspect a bug. It seems that the exported GIF animation always plays "AnimationRepetitions"$+1$ times in my MMA 11.3, and as you said, a value of $0$ for "AnimationRepetitions" is not accepted. $\endgroup$
    – MarcoB
    Apr 23 '18 at 15:02

This is indeed a bug in 11.3 and there is no way to export a gif that will only play once. That bug will be fixed in the next release.

Here is a simple workaround you can use:

ExportSingleAnimationGIF[fname_String, expr_, opts___] := 
    bytes = StringToByteArray[ExportString[ expr, "GIF", opts, CharacterEncoding -> "ISO8859-1"], "ISO8859-1"],
    loop = {33, 255, 11, 78, 69, 84, 83, 67, 65, 80, 69, 50, 46, 48, 3, 1, _, _, 0}
        gifBytes = Join @@ SequenceSplit[Normal[bytes], loop]
        BinaryWrite[fname, gifBytes];

You call it with the same arguments and options as you would pass to Export but obviously "AnimationRepetitions" will be ignored. It should always produce a GIF that only plays once.

  • $\begingroup$ What changes do I need to do to make the animation loop indefinitely? I have version 11.2. In my browser the animation runs exactly twice. Irrespective of the value I give to "AnimationRepetitions". If you prefer, I can write another question about it. $\endgroup$ May 17 at 12:55

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.