Safari 17.4 is here

[jensimmons]

https://webkit.org/blog/15063/webkit-features-in-safari-17-4/

[nihil-admirari]

The Vorbis audio codec is also now supported in WebKit on iOS 17.4, iPadOS 17.4 and in visionOS 1.1.

Doesn't work. Tested on iOS 17.4, test files are from https://hpr.dogphilosophy.net/test/. Both Vorbis in Ogg and Vorbis in WebM don't play.

[jensimmons]

@nihil-admirari I cannot open that URL because of security protections. Can you provide the test files in a place that's not insecure?

Ogg is not supported, so it's expected that Vorbis in Ogg will not work. Vorbis should work in other containers, like WebM.

[jensimmons]

We just retested with multiple files, including some from Wikipedia, and confirmed Safari 17.4 on iOS does support the Vorbis codec, for example in a WebM container.

The site you linked to above requests the user install the WebM QuickTime Component, something that stopped working over a decade ago when support was dropped for QuickTime.framework. And it's serving a .weba file, which is not a supported file type. Also, as I mentioned above, the site is misconfigured for HTTPS, which causes many browser to block loading it at all. Please retest with modern technology.

[jyavenard]

Here is a vp8/vorbis file
http://wpt.live/html/semantics/embedded-content/media-elements/track/track-element/resources/vp8-vorbis-webvtt.webm

.weba is not a valid extension file

[nihil-admirari]

Ok, Vorbis in webm does work. The site in question uses weba and ogg, which are unfortunately still not supported.

Release notes don't specify the container:

Added support for the Vorbis audio codec on iOS, iPadOS, and in visionOS. (116776158)

which is confusing, especially when compared with the release notes for Safari 17, where container for Opus files was indeed specified:

Added support for stereo-only Opus in MPEG-4 and WebM containers on macOS Sonoma. (50994465)

[jyavenard]

weba is not a thing. That’s an extension the site made up. Had the extension of the file been .webm it would have played.
https://www.webmproject.org/docs/container/

[nihil-admirari]

weba is not a thing

Didn't know that it's non-standard. Such files are over the Internet. Chromium supports them: chromium/chromium@c3ce84e.

[jyavenard]

Chromium sniff the content and ignore the file extension. As long as ffmpeg can play them, so will chromium.
So it will play webm with h264 which are technically invalid (they are matroska not webm).

Safari is a tad more strict.