This is a gif converter that changes it to an ascii output (technically it's just a text output, because it can be utf-8 if I want it to it just changes it to arbritary characters and since rust handles utf-8 that's really the limit)
It's also the project I am using to get into rust, I've done a few other practice things but this is the first propper piece that will do something. This means that the code is probably awful, I mean really bad. I'm hoping future Jemma will come back and refactor it, make it something that runs quickly and easily but that's maybe a pipe dream.
I've found the wonderous crate "clap" (yes Jemma's got the clap!) this is kinda cool and means taking command line arguments has never been so easy! Here are all the ones I take and what I expect from you
-h --help : The help menu (bascially this) -V --version : The version number and stuff (I should update that right?) -f --file : The path to the file you want to convert, works from current dir -W -Width : The width of the output image (this will default to the maximum number of characters in your terminals width, basically filling out whatever terminal (looks pretty good)) -H -Height: Same kinda thing as width, defaults to maximum number of lines of terminal (something to remember is that most fonts are 1x2 meaning they are twice as high as they are wide, this means that for it to render in a ~ square you need half the height as you do width) :) -p --print : If the gif gets shown in the terminal (THIS SHOULD probably BE UPDATED TO BE SWITCHED AROUND) it's more likely you will want to see it than not -l --luminance : Currently I have two functions to calculate luminance, one actually calculates the value the other uses a different (mostly worse calculation) but I've found some images work best with one and worse with another, so options are good, this will almost certainly become close to defunct with adding colour -t --time : The time between frames, withou ta value it will extract that of the last frame in the sequence,
We all love a good todo list, and this one is no different
[] - Colour output [] - Handels interlaced gifs (they're more common than you'd think) [] - More downsampling functions / options [] - Upscaling for images smaller than terminal resolution [] - Using half height block and background / foreground colour to double vertical resolution at a loss of the "ascii" aestetic
Hey weirdo reading this, this my unfiltered thoughts whilst writing this, if you are reading this then you are probably going back through the commit log because I should be deleting this quite regularly. So if you are on the current version try running with the test gif "egg.gif" that output looks interlaced, but the gif crate is telling me no. I'm guessing this might be a bug, I'm not exactly sure last time I thought something was a bug turned out it was just my resize function being silly (what I passed it) so I'm guessing that ain't right. Even weirder are the black boxes in "happy.gif" This is probably caused by the function that's been causing me so much greif recently, that damned "calc_next_frame"! because it seems to be exactly the sort of stuff that should handel, boxes like that. But why isn't it getting those frames, why do other gifs work so well? WHAT IS GOING ON HERE!