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orklann / capture-gif-issues

Issues & Discussions to Capture Gif
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gif file is too large #1

Closed tiann closed 8 years ago

tiann commented 8 years ago

the gif file generated is too large, i set the frame to 5ms and the frame delay to 200ms; record 5 second the file is 10M. it is almost useless on web, can you optimise this? consider use pngquant to compress the png file？

orklann commented 8 years ago

Thanks for feedback, and good call.

I will take a look at pngquant to see how good the compressed png files are, and finally decide if to use it to compress png files. Will update this issue after testing pngquant.

BTW, this feature will be available in next version 1.4.0 if possible. Because I think this is a good feature to reside in the 1.4.0 version number, not 1.3.14.

tiann commented 8 years ago

looking forward to your update！

orklann commented 8 years ago

@tiann There is a bad news, I tried pngquant to compress PNGs before merging them into a GIF (Capture Gif used whirlgif command line internally to merge PNGs into one GIF file). pngquant perfectly compress PNGs to smaller size without losing quality, it's a cool utils. but after merging them into one GIFs, the wired thing happen, the resulting GIF was bigger than that without using pngquant, I pulled my hair out and was thinking it must be the issue of algorithm of whirlgif, so at present If you want to make smaller GIF file, I recommend you to set a smaller FPS before recording, I tested with a 3 fps and 5 seconds of recording, the resulting GIF file size is around 1.8MB.

Or do you have any solution to reduce GIF size, but not to reduce the PNG size?

tiann commented 8 years ago

Sorry to hear that.

Maybe you can try LZW algorithm. The GIFLIB contains some implements.

orklann commented 8 years ago

Need to close this issue, and the solution is to set a smaller FPS (3 - 5 fps) and you get still high quality GIF and smaller GIF file size.

Take a look at an example: GIF sample