Can this API be feature detected? IOW, do developers have an easy way to figure if RTCDataChannel can be transferred?
Thanks, Vlad On Wed, Aug 14, 2024 at 11:47 AM Daniel Bratell <bratel...@gmail.com> wrote: > LGTM1 > > /Daniel > On 2024-08-09 01:21, Thomas Guilbert wrote: > > Contact emails tguilb...@chromium.org > > Explainer None > > Specification > https://w3c.github.io/webrtc-extensions/#rtcdatachannel-transferable > > Summary > > The RTCDataChannel interface is part of the WebRTC standard, and > represents a network channel which can be used for bidirectional > peer-to-peer transfers of arbitrary data. This feature tracks exposing > RTCDataChannel in dedicated workers, and allowing the transfer of > RTCDataChannels to them workers. This will help reduce main thread > contention and lead to smoother and more reliable WebRTC applications. > > > Blink component Blink>WebRTC>DataChannel > <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EWebRTC%3EDataChannel> > > TAG review None > > TAG review status Not applicable > > Risks > > > Interoperability and Compatibility > > There is an interoperability risk when it comes to which types of workers > are supported by which browser. - Safari/WebKit supports transfers to > DedicatedWorkers and to ServiceWorkers. - Chromium is only looking to add > transfers to DedicatedWorkers; supporting transfers to ServiceWorkers would > require significant architectural changes (across processes, rather than > across threads) and might never be supported. - Firefox/Gecko supports > neither, but might support transfers to both DedicatedWorkers and > ServiceWorkers, if/when they choose to support this feature. Regardless of > whether or not Chromium supports transfers to ServiceWorkers, enabling > transfers to DedicatedWorkers addresses current developer needs, and > improves interoperability. > > > *Gecko*: No signal (https://bugzilla.mozilla.org/show_bug.cgi?id=1209163) > Mozilla is aware of the issue, but has not allocated resources to it as of > yet. > > *WebKit*: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=222965 > ) > > *Web developers*: Positive This has been a longstanding request from > developers. E.g: https://bugzilla.mozilla.org/show_bug.cgi?id=1209163#c4 > https://issues.chromium.org/issues/40787712#comment21 > > *Other signals*: > > Ergonomics > > This feature improves the ergonomics of existing Worker exposed APIs. For > example, it allows developers to use WebCodecs and Offscreen canvas from > workers, without having to repeatedly transfer data from the main thread. > > > Activation > > N/A > > > Security > > This feature should not introduce any new security risks. Existing risks > can be found in the WebRTC API specification: > https://w3c.github.io/webrtc-pc/#privacy-and-security-considerations > > > 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 > > > Debuggability > > N/A > > > 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 > > DedicatedWorkers: > https://wpt.fyi/results/webrtc-extensions/transfer-datachannel.html?label=experimental&label=master&aligned > ServiceWorkers (out of scope for this feature): > https://wpt.fyi/results/webrtc-extensions/transfer-datachannel-service-worker.https.html?label=experimental&label=master&aligned > > > Flag name on chrome://flags None > > Finch feature name TransferableRTCDataChannel > > Requires code in //chrome? False > > Sample links > https://tguilbert-google.github.io/RTCDataChannel/index.html > > Estimated milestones > Shipping on desktop 130 > DevTrial on desktop 129 > Shipping on Android 130 > DevTrial on Android 129 > > 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/6612726584180736?gate=4885503741263872 > > Links to previous Intent discussions Intent to Prototype: > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/dab53bcd-e51d-41bc-a312-4bd3e08322f0n%40chromium.org > > > 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/CABrVPoba%2B6EuYDdfxKF8ZXn%3DXmzt6vd1tZ53yTS9-CEdUBXTzw%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABrVPoba%2B6EuYDdfxKF8ZXn%3DXmzt6vd1tZ53yTS9-CEdUBXTzw%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/b2d9e822-092f-4ad3-b595-7fa0044062cc%40gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/b2d9e822-092f-4ad3-b595-7fa0044062cc%40gmail.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/CADsXd2NNCCf4Uds3zvEinm15KYCEAc25e9Et-FdEAcZPO1oamw%40mail.gmail.com.
