add support for downloading youtube community posts

[kenziewebm]

describe the feature you'd like to see

add support for downloading youtube community posts (afaik cobalt doesnt support this yet. tried pasting the url below and got an error)

additional context

i managed to create a bash oneliner to successfully download a youtube community post image, so i think this will help somewhat :3

# this downloads the best resolution image, remove everything after "grep trackingParams" to list available resolutions in a very shitty way
# example url i used for testing
# export URL='https://www.youtube.com/post/UgkxpzFlSEobNVmQT14KeROKeOIPOXuhX8F9'
curl $URL | grep ggpht | sed -e 's/:"/\n/g' | grep trackingParams | head -1 | sed 's/",.*$//g' | xargs -I{} curl -s {} | convert - out.gif

its not the best, but it works
tested only on posts with animated content, not static images

FYI - the animated posts use some custom animated webp thing? ffmpeg doesnt support it and refuses to convert. imagemagick however does, thats why i use it here.