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Supporting more space efficient image and video file formats
Currently image uploads are supported for files of type PNG, JPEG (.jpeg or .jpg), and GIF. In another question I uploaded a video of my screen to illustrate the problem being raised there. This was recorded by my operating system as MP4, at a size of 48kB. In order to upload it, I first had to convert it to GIF. I don't mind doing this, but I noticed that the GIF was almost 3 times the size, at 139kB.
There are a variety of modern image and video formats that are more efficient that PNG, JPEG, and GIF. Supporting them would allow Codidact to use less storage space.
Potential file formats
Are there any reasons to avoid supporting any of the following:
Image
- SVG (See also Should inline SVG or SVG uploads be supported in posts? which also covers inline SVG, which is not the topic of this question)
- WebP
Video
I understand that the video formats MP4 and WebM can also include sound, which would need to be suppressed at least by default when a post is loaded (even for users who want to hear sound, they probably don't want to hear the audio of several different videos from several different posts on the page all at once).
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