I am asking the WMF to add MP4: https://phabricator.wikimedia.org/T329258 On Monday, October 23, 2023 at 8:53:14 AM UTC-7 Dale Curtis wrote:
> Contact emailsdalec...@chromium.org > > ExplainerNone > > Specificationhttps://en.wikipedia.org/wiki/Theora > > Summary > > Chrome will deprecate and remove support for the Theora video codec in > desktop Chrome due to emerging security risks. Theora's low (and now often > incorrect) usage no longer justifies support for most users. Notes: - Zero > day attacks against media codecs have spiked. - Usage has fallen below > measurable levels in UKM. - The sites we manually inspected before levels > dropped off were incorrectly preferring Theora over more modern codecs like > VP9. - It's never been supported by Safari or Chrome on Android. - An > ogv.js polyfill exists for the sites that still need Theora support. - We > are not removing support for ogg containers. Our plan is to begin > escalating experiments turning down Theora support in M120. During this > time users can reactivate Theora support via > chrome://flags/#theora-video-codec if needed. The tentative timeline for > this is (assuming everything goes smoothly): - ~Oct 23, 2023: begin 50/50 > canary dev experiments. - ~Nov 1-6, 2023: begin 50/50 beta experiments. - > ~Dec 6, 2023: begin 1% stable experiments. - ~Jan 8, 2024: begin 50% stable > experiments. - ~Jan 16th, 2024: launch at 100%. - ~Feb 2024: remove code > and chrome://flag in M123. - ~Mar 2024: Chrome 123 will roll to stable. > > > Blink componentInternals>Media>Codecs > <https://bugs.chromium.org/p/chromium/issues/list?q=component:Internals%3EMedia%3ECodecs> > > Search tagstheora <https://chromestatus.com/features#tags:theora>, vp3 > <https://chromestatus.com/features#tags:vp3>, video > <https://chromestatus.com/features#tags:video> > > TAG reviewNone > > TAG review statusNot applicable > > Risks > > > Interoperability and Compatibility > > Sites which only provide a Theora video source will no longer have video > playback. These sites would already be broken in Chrome for Android or > Safari. > > > *Gecko*: Under consideration Private discussions. I asked if they'd like > an RFP for this, but haven't yet heard back. > > *WebKit*: Shipped/Shipping (https://caniuse.com/ogv) Safari never shipped > support for Theora. > > *Web developers*: Mixed signals Most developers are not likely to have an > opinion, some may lament the loss of one of the first open codecs on the > web. > > *Other signals*: > > Security > > Security positive change -- removes support for a complicated binary > parsing and decoding mechanism. > > > WebView application risks > > Does this intent deprecate or change behavior of existing APIs, such that > it has potentially high risk for Android WebView-based applications? > > None, never supported on Android or WebView. > > > Debuggability > > Can be debugged through media dev tools or chrome://media-internals. > > > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, Chrome OS, Android, and Android WebView)?Yes > > Not currently supported on Chrome for Android. > > > Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> > ?Yes > > As part of pre-work, I've switched all tests using Theora (of which there > were hundreds) over to using VP8/VP9 where appropriate. > > > Flag name on chrome://flagsTheoraVideoCodec > > Finch feature nameTheoraVideoCodec > > Requires code in //chrome?False > > Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1489034 > > Estimated milestones > DevTrial on desktop 120 > > Anticipated spec changes > > Open questions about a feature may be a source of future web compat or > interop issues. Please list open issues (e.g. links to known github issues > in the project for the feature specification) whose resolution may > introduce web compat/interop risk (e.g., changing to naming or structure of > the API in a non-backward-compatible way). > None > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/5158654475239424 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com/>. > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/31c35c13-03f2-4dff-bc3b-8e2f82a3c90an%40chromium.org.
