Looks pretty straightforward to me, especially with Safari already shipping. LGTM1
On Wed, Oct 18, 2023 at 7:18 PM Dale Curtis <dalecur...@chromium.org> wrote: > Contact emailsv...@microsoft.com, gw...@microsoft.com, > gur...@microsoft.com, dalecur...@chromium.org > > Explainer > https://github.com/w3c/media-capabilities/blob/main/explainer.md#decode-capabilities > > Specificationhttps://www.w3.org/TR/media-capabilities/#hdrmetadatatype > > Summary > > Extends the Media Capabilities API to allow detection of HDR rendering > support via three new VideoConfiguration dictionary fields: > hdrMetadataType, colorGamut, transferFunction. Chromium implements its own > tone-mapping algorithms so will always return true for HDR10 (smpteSt2086) > static metadata. HDR10+ (smpteSt2094-10) and Dolby Vision (smpteSt2094-40) > dynamic metadata are not currently supported, so will return false. We > anticipate adding support for dynamic metadata in the future, so this API > will allow developers to select the appropriate content for users with > support. > > > Blink componentBlink>Media>Capabilities > <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EMedia%3ECapabilities> > > TAG reviewAlready shipping by another UA. The now-closed Media > Capabilities TAG review covered similar discussions: > https://github.com/w3ctag/design-reviews/issues/218 > > TAG review statusNot applicable > > Risks > > > Interoperability and Compatibility > > Low interop risk: Already shipping in Safari. > > > *Gecko*: Neutral ( > https://github.com/mozilla/standards-positions/issues/910) > > *WebKit*: Shipped/Shipping ( > https://www.w3.org/2019/11/19-mediawg-minutes.html) > > *Web developers*: Positive ( > https://github.com/w3c/media-capabilities/issues/118#issuecomment-511461132 > ) > > *Other signals*: > > Activation > > Will start returning false for some DolbyVision and HDR10+ metadata types > on the web -- playback would have been broken already for these. > > > 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? > > No risks unique to WebView. > > > Debuggability > > Debuggable through media dev tools and chrome://gpu information. > > > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, Chrome OS, 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/media-capabilities/decodingInfo.any.html?label=experimental&label=master&aligned > Thanks! Is there a bug filed for the three tests failing in Chrome? Flag name on chrome://flags > > Finch feature nameMediaCapabilitiesDynamicRange > > Requires code in //chrome?False > > Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1048045 > > Estimated milestones > Shipping on desktop 120 > Shipping on Android 120 > Shipping on WebView 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). > Spec changes have already been submitted since the feature is shipping in > Safari. > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/6640863931269120 > > Links to previous Intent discussionsIntent to prototype: > https://groups.google.com/a/chromium.org/g/blink-dev/c/jBzVLBz-Yk4/m/ORuQg2zAEwAJ > > 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/CAPUDrwforrrpNE5RLc_OVa9uwa-63UX03VgijptNU5E8sVcD7g%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAPUDrwforrrpNE5RLc_OVa9uwa-63UX03VgijptNU5E8sVcD7g%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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/CAFUtAY-9LJRQwQscKevqnKDWtWkVkyaD%3Dgb7WK1RXRx2bvXn4A%40mail.gmail.com.
