To put simply, pixel format is a kind of computer representation for color.
GIFSICLE LOOP GIF HOW TO
I’m going to show you how to turn the clip into a GIF and add an image macro overlay. You can do this with GIFsicle, using the following options. R is a frame rate, in our case 20 frames per second. Like this, The key tool here is going to be Gifsicle, a very excellent command-line tool for creating and manipulating GIF images. Next, we ask Gifsicle to compile an animated GIF. gifsicle -loop -delay 5 -dither -colors 32 -O2. gifsicle -U -disposalprevious -transparent'ffffff' -O2 anim.gif > animtrans.gif where anim.gif and animtrans.gif are the source and destination file names, and ffffff is the hex code of the color you want to make transparent (here, pure white). The simplest way to create an animation is to give more than one input file, which gifsicle will combine to create a flipbook animation: gifsicle pic1.gif pic2.gif pic3.gif > animation.gif. What happens under the hood is that if the original video has higher frame rate than 20 than ffmpeg will remove some frames and if it had lower frame rate it will duplicate some frames to obtain output video with desired number of frames per second. f flag is used to set filter for ffmpeg, e.g. gif filter will transform video into a gif. optimize is used to shrink resulting gif. To start with, youll need to install Homebrew, Gifsicle, and FFmpeg, which are all command line tools for Mac. Level 3 will take more time to process but is the best optimization. delay sets the delay in time between gif frames in hundredths of a second, in our case it will be 0.03s.
GIFSICLE LOOP GIF MAC OS
You can do this by adding a function on Mac OS or Linux in your ~/.bash_profile or ~/.bashrcĪdd the following lines: gifly() You can even set a handy shortcut in your bash to just type: gifly input.mov output.gif The larger the value the slower the gif will be but if the value is too high it will make impression of lags. 2 ) Record a video (in MOV format) which you'd like to convert later to a gif file. That’s it, ffmpeg rocks! Enjoy creating gifs without any special software.
3 ) Transform video into gif like that: ffmpeg -i my.mov -s 1400x800 -pixfmt rgb24 \ -r 20 -f gif - gifsicle -optimize3 -dela圓 > my.gif.
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