Clarification about platform support: The feature will support the platforms that support getDisplayMedia (Mac, Windows, Linux and ChromeOS), but the plan is to launch Mac and Windows first (in 136) and Linux and ChromeOS shortly after that (targeting 137).
On Fri, Mar 28, 2025 at 12:12 AM Chromestatus < ad...@cr-status.appspotmail.com> wrote: > Contact emails agpa...@google.com, gui...@chromium.org > > Explainer > https://github.com/guidou/mediacapture-extensions/blob/main/explainer-pixels.md > > Specification > https://w3c.github.io/mediacapture-screen-share/#dfn-screenpixelratio > > Summary > > Expose pixel ratio of the captured surface while screensharing. This > feature will help applications to conserve their system resources or adapt > the quality/bandwidth trade-off according to the physical and logical > resolutions of the captured surface. > > > Blink component Blink>MediaStream > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EMediaStream%22> > > TAG review https://github.com/w3ctag/design-reviews/issues/1060 > > TAG review status Pending > > Risks > > > Interoperability and Compatibility > > Interoperability risk is relatively low. The main risk is that other > browsers do not implement the feature. However, since the feature is a > small addition to an existing spec and it has consensus across browsers, it > is possible that it will be implemented. There is no compatibility risk as > the feature is strictly additive and orthogonal to existing features. > > > *Gecko*: Positive ( > https://github.com/w3c/mediacapture-screen-share/pull/315) Since this is > a minor addition to an existing spec, no official position was requested as > it would have been closed without response. The provided link points to the > PR where Firefox's representative was supportive. > > *WebKit*: Positive ( > https://github.com/w3c/mediacapture-screen-share/pull/315) Since this is > a minor addition to an existing spec, no official position was requested as > it would have been closed without response. The provided link points to the > PR where Safari's representative approved. > > *Web developers*: No signals > > *Other signals*: > > Ergonomics > > No risks identified. > > > Activation > > No risks identified. > > > Security > > This feature exposes the pixel ratio of the screen being captured. This > type of ratio is already exposed in other APIs, but it was not possible to > tie a capture to the ratio of the screen being captured. The ratio is > exposed only while the capture is active, and the capture requires explicit > permission from the user. > > > 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 > > N/A > > > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)? No > > Will be supported for Windows, Mac, Linux, ChromeOS but not for Android > and Android WebView as they don't support the getDisplayMedia API, which is > the base for this feature. > > > 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/screen-capture/tentative/getdisplaymedia-captured-surface-resolution.https.html?label=experimental&label=master&aligned > > > Flag name on about://flags > > Finch feature name CapturedSurfaceResolution > > Requires code in //chrome? False > > Tracking bug https://g-issues.chromium.org/issues/383946052 > > Launch bug https://launch.corp.google.com/launch/4382372 > > Availability expectation Feature is available only in Chromium browsers > for the foreseeable future. However, since the feature is small and has > consensus across browser vendors, it might become available in other > browsers. > > Adoption expectation Feature is used by specific partner(s) to provide > functionality within 12 months of launch in Chrome. > > Estimated milestones > Shipping on desktop 136 > > 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). > N/A > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/6738236535472128?gate=5004697808928768 > > 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 visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CA%2BBuZxaxdP2bDO70yM_FabJDPAR-spgWyHSv4KX%3De35QHyfLtg%40mail.gmail.com.
