Can the failing tests be renamed to `.tentative` until those discussions
settle?

On Thu, Aug 21, 2025 at 7:42 PM Guido Urdaneta <gui...@chromium.org> wrote:

> The multi-browser failures in wpt.fyi are mainly due to their including
> features that are still under discussion (SFrame and generateKeyFrame).
> SFrame has not been shipped by any browser yet (it is not covered in the
> Interop 2025 effort). Safari and Firefox do have generateKeyFrame, but they
> are not completely compatible and there are open issues that are being
> discussed in the W3C WebRTC WG. We are not including these features in this
> launch.
> The generateKeyFrame issues are expected to be resolved after the WG
> discussion, and we plan to ship it shortly after.
>
> The results of Chrome and Edge will improve with this launch, in
> particular script-metadata-transform.https.html
> <https://wpt.fyi/results/webrtc-encoded-transform/script-metadata-transform.https.html?label=experimental&label=master&aligned>
> , script-transform-sendKeyFrameRequest.https.html
> <https://wpt.fyi/results/webrtc-encoded-transform/script-transform-sendKeyFrameRequest.https.html?label=experimental&label=master&aligned>
>  and
> RTCRtpScriptTransform-encoded-transform.https.html
> <https://wpt.live/webrtc-encoded-transform/RTCRtpScriptTransform-encoded-transform.https.html>
> will pass fully, which will put them on par with Firefox and Safari.
>
>
> On Wed, Aug 20, 2025 at 5:05 PM Philip Jägenstedt <foo...@chromium.org>
> wrote:
>
>> Very happy to see us approaching interoperability on this feature!
>>
>> Looking at
>> https://wpt.fyi/results/webrtc-encoded-transform?label=experimental&label=master&aligned
>> there are quite a lot of failures in all browsers. Does wpt.fyi reflect
>> the test results we'll have after enabling this, and are there a problem
>> with the test suite that needs to be addressed here?
>>
>> On Wed, Aug 13, 2025 at 7:21 PM Chromestatus <
>> ad...@cr-status.appspotmail.com> wrote:
>>
>>> Contact emails gui...@chromium.org, h...@chromium.org,
>>> topr...@chromium.org, alonsomo...@google.com, gui...@google.com
>>>
>>> Explainer None
>>>
>>> Specification https://github.com/w3c/webrtc-encoded-transform
>>>
>>> Summary
>>>
>>> This API allows processing of encoded media flowing through an
>>> RTCPeerConnection. Chromium shipped an early version of this API in 2020.
>>> Since then, the spec has changed and other browsers have shipped the
>>> updated version of the spec (Safari in 2022 and Firefox in 2023). This
>>> launch refers to the latest spec version and is part of Interop 2025. This
>>> launch does not cover the generateKeyFrame method, which is still under
>>> discussion https://github.com/w3c/webrtc-encoded-transform/issues/143
>>> https://github.com/w3c/webrtc-encoded-transform/issues/271
>>> https://github.com/w3c/webrtc-encoded-transform/pull/269
>>>
>>>
>>> Blink component Blink>WebRTC>PeerConnection
>>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebRTC%3EPeerConnection%22>
>>>
>>> TAG review None
>>>
>>> TAG review status Issues addressed
>>>
>>> Risks
>>>
>>>
>>> Interoperability and Compatibility
>>>
>>> Interoperability: This change improves interoperability since it
>>> implements an API already implemented by other browsers. Interoperability
>>> risks are relatively low and derive from slight differences in
>>> implementation. We have seen that WPTs don't have the same pass rate for
>>> all implementations, but we have observed that in most cases this is due to
>>> the WPTs testing unspecified behavior. Compatibility: Existing applications
>>> using the old version of the API will continue to work without changes.
>>> Existing applications using the new version of the API should start working
>>> with Chromium.
>>>
>>>
>>> *Gecko*: Shipped/Shipping
>>>
>>> *WebKit*: Shipped/Shipping
>>>
>>> *Web developers*: Positive
>>>
>>> *Other signals*:
>>>
>>> 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?
>>>
>>> N/A
>>>
>>>
>>> Debuggability
>>>
>>> None
>>>
>>>
>>> Will this feature be supported on all six Blink platforms (Windows, Mac,
>>> Linux, ChromeOS, Android, and Android WebView)? Yes
>>>
>>> Is this feature fully tested by web-platform-tests
>>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
>>> ? Yes
>>>
>>>
>>> https://wpt.fyi/results/webrtc-encoded-transform?label=experimental&label=master&aligned
>>>
>>>
>>> Flag name on about://flags RTCRtpScriptTransform
>>>
>>> Finch feature name RTCRtpScriptTransform
>>>
>>> Rollout plan Will ship enabled for all users
>>>
>>> Requires code in //chrome? False
>>>
>>> Tracking bug https://issues.chromium.org/issues/354881878
>>>
>>> Availability expectation Feature available on all major browsers.
>>>
>>> Adoption expectation Feature is used by specific partner(s) to provide
>>> functionality within 12 months of launch in Chrome
>>>
>>> Non-OSS dependencies
>>>
>>> Does the feature depend on any code or APIs outside the Chromium open
>>> source repository and its open-source dependencies to function?
>>> None
>>>
>>> Sample links
>>>
>>> https://webrtc.github.io/samples/src/content/insertable-streams/endtoend-encryption
>>>
>>> Estimated milestones
>>> Shipping on desktop 141
>>> Shipping on Android 141
>>> Shipping on WebView 141
>>>
>>> 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/5175278159265792?gate=5141653464285184
>>>
>>> This intent message was generated by Chrome Platform Status
>>> <https://chromestatus.com>.
>>>
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>>>
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