file could not be opened error about asciicast2gif HOT 9 CLOSED

Did you try to open the gif in another program, for example a browser? I could generate and open the file in both chrome and firefox

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You can also use ffmpeg to recreate/fix the gif

ffmpeg -ss 30 -t 3 -y -i demo.gif -vf fps=10,scale=1920:-1:flags=lanczos,palettegen palette.png
ffmpeg -i demo.gif -i palette.png -filter_complex "fps=10,scale=1920:-1:flags=lanczos[x];[x][1:v]paletteuse" output.gif

However the output will be a bit larger in file size. You can use gifsicle or ImageOptim to compress it.

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I ran that command, and it generated the file on my desktop, then I double clicked the file, and got that error.

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@jwoertink can you post such broken gif file somewhere so someone can look closer?

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hmm... That's interesting. Here's a link. Looks like it works in the browser, just not on the desktop.

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@jwoertink the commands above should work, the gif after I ran the commands:
The preview app is able to open it fine, but I don't think that the Preview app is really designed to open gifs anyway.

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The preview app works fine with gif

The ones generated with this also won't work if sent to someone via text. I guess if it's only going to support web, then maybe a note could just be added to the README?

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Sorry I should have been clearer, the preview app works on (apparently only some) gifs but is not 'designed' for gifs it just displays singe frames. It looks like an after-thought on Apples part IMHO.

I have two asciinema json files that once is converted via asciicast2gif open fine in the Preview app.

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ok

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