Re: yank-media: allow users to limit image types that can be inserted

[pinmacs <pinmacs@cas.cat>]

On 2024-10-31 12:16, Eli Zaretskii wrote:
>> Date: Thu, 31 Oct 2024 11:47:42 +0100
>> From: pinmacs <pinmacs@cas.cat>
>>
>> Maybe I am missing too but when you choose a format, you choose how you
>> store and retain that information. Depending on what you are going to do
>> with that images, you might be interested in different formats.
> That is inaccurate: the format in which the yanked data is store in
> Emacs does NOT depend on your selection.  Your selection only
> determines how Emacs will fetch the data from the clipboard/selection,
> and therefore also how it will interpret that data for the purpose of
> inserting it into a buffer.

Hi Eli,

Let me provide more detail.

For the way I use it through orgmode the selection determines how the 
file is stored.

If I do 2 screen captures of nature [0], and I save one of them with png 
and jpeg, this is  what appears in my orgmode buffer:

file:/path/to/emacs-orgmode-images/2024/2024-10-31_12-36-45_screenshot.png
file:/path/to/emacs-orgmode-images/2024/2024-10-31_12-36-59_screenshot.jpeg

Hence, new files where saved. And that has an impact in file size, so in 
[1] png takes 8 times more, because jpeg is able to compress better a 
natural image [2].

So me as user in two different use cases of yank-media:

- So, me in a day where I am working in IT stuff related, I might want 
to just select preferred format as png if what I capture is more 
synthetic, such as text, log errors, visual annotations on user interfaces.
- And me, in a day where I am planning a hiking, I might want to select 
jpeg as preferred format, if I am planning to go to nature, and I am 
looking on images of nature... because maybe I don't want to save full 
images, but take pieces of it

Let me know if you want the exact results attached in the mailing list, 
or you are able to reproduce yourself.

Cheers,
pinmacs

[0] 
https://en.wikipedia.org/wiki/Nature_photography#/media/File:Altja_j%C3%B5gi_Lahemaal.jpg

[1]
   [2024-10-31 Thu 12:37:08] $ du -sh 
/path/to/emacs-orgmode-images/2024/2024-10-31_12-36-45_screenshot.png
   805K 
/path/to/emacs-orgmode-images/2024/2024-10-31_12-36-45_screenshot.png
   [2024-10-31 Thu 12:37:09] $ du -sh 
/path/to/org-extra/emacs-orgmode-images/2024/2024-10-31_12-36-59_screenshot.jpeg
   101K 
/path/to/emacs-orgmode-images/2024/2024-10-31_12-36-59_screenshot.jpeg

[2] here is why https://www.techsmith.com/blog/jpg-vs-png/