[feature] Add avif file support (#4331)

# Description

> If this is a code change, please include a summary of what you've coded, and link to the issue(s) it closes/implements.
>
> If this is a documentation change, please briefly describe what you've changed and why.

This pull request implements support for reading avif images properly.

closes https://codeberg.org/superseriousbusiness/gotosocial/issues/4330

## Checklist

Please put an x inside each checkbox to indicate that you've read and followed it: `[ ]` -> `[x]`

If this is a documentation change, only the first checkbox must be filled (you can delete the others if you want).

- [x] I/we have read the [GoToSocial contribution guidelines](https://codeberg.org/superseriousbusiness/gotosocial/src/branch/main/CONTRIBUTING.md).
- [x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat.
- [x] I/we have not leveraged AI to create the proposed changes.
- [x] I/we have performed a self-review of added code.
- [x] I/we have written code that is legible and maintainable by others.
- [x] I/we have commented the added code, particularly in hard-to-understand areas.
- [x] I/we have made any necessary changes to documentation.
- [x] I/we have added tests that cover new code.
- [x] I/we have run tests and they pass locally with the changes.
- [x] I/we have run `go fmt ./...` and `golangci-lint run`.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4331
Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Co-committed-by: tobi <tobi.smethurst@protonmail.com>
This commit is contained in:
tobi 2025-07-17 13:20:01 +02:00 committed by tobi
commit a4b54aa935
8 changed files with 75 additions and 5 deletions

View file

@ -342,16 +342,21 @@ func (res *result) GetFileType() (gtsmodel.FileType, string, string) {
case "mov,mp4,m4a,3gp,3g2,mj2":
switch {
case len(res.video) > 0:
if len(res.audio) == 0 &&
res.duration <= 30 {
switch {
case res.video[0].framerate == 0 && res.video[0].stream.codec == "av1":
// Looks like an avif image.
return gtsmodel.FileTypeImage,
"image/avif", "avif"
case len(res.audio) == 0 && res.duration <= 30:
// Short, soundless
// video file aka gifv.
return gtsmodel.FileTypeGifv,
"video/mp4", "mp4"
default:
// Video file (with or without audio).
return gtsmodel.FileTypeVideo,
"video/mp4", "mp4"
}
// Video file (with or without audio).
return gtsmodel.FileTypeVideo,
"video/mp4", "mp4"
case len(res.audio) > 0 &&
res.audio[0].codec == "aac":
// m4a only supports [aac] audio.