Viuing images in vim's terminal

[mark2185]

I saw the #45 and it was closed because it was too niche so I presume this is even too niche for the "too niche" category.

In short, when trying to use viu from within vim's :terminal I only get what looks like a base64 of the image and the program halts, and then after pressing <Ctrl-C> I get a bunch of characters instead of any kind of image. Example of the output:

Gi=31,s=1,v=1,a=q,t=t;L3Zhci9mb2xkZXJzLzM1L2s5cjVwOXNzN3RsZDkwZHBmOXhucXE3NDAwMDBnbi9ULy50bXAudml1ZXIuQg==
<I press ctrl-c here>
ov/nIyK/52Ni/+aiov/nIuM/5qMjP+bjY3/mYuL/5mLi/+ajIz/nI+P/5yLjP+ZiYr/mouJ/5qLif+Zi4v/mIqK/5iKiv+Zi4v/mYuJ/5mLif+Yior/mIqK/5mLi/+Zi4v/mIqK/5iKiv+ci4z/moqL/5qLif+Xh4b/lYWB/5aGgv+Yioj/lomH/5iKiv+WiYn/l4eG/5eHhv...

The terminal states both $TERM and $COLORTERM are xterm-kitty and truecolor, respectively. Running viu from outside vim works as expected.

Steps to reproduce with vim 8.2 (2019 Dec 12, compiled Jun 26 2021 10:02:55):

vim -Nu NONE +terminal
viu /path/to/image

When running it from vim within tmux though, I get a low-resolution image that is slowly printed (probably due to vim redrawing it constantly), but there $TERM is xterm-256color, $COLORTERM is truecolor.

[davibarreira]

I'm also trying to use it inside Neovim terminal. I have the same issue. It would be great to run it from within neovim :D

[mark2185]

Same happens if viu used for preview within vifm.

[mark2185]

Not only that, but it starts hogging up memory until it's killed. I'm using vifm with kitty.