Contact emails [email protected] Specification https://w3c.github.io/media-capabilities/#dom-keysystemtrackconfiguration-encryptionscheme
Summary Adds the encryptionScheme attribute to the KeySystemTrackConfiguration dictionary used in navigator.mediaCapabilities.decodingInfo(). This allows web applications to query whether a specific encryption scheme (such as 'cenc' or 'cbcs') is supported. This feature is already approved by the W3C spec and the underlying backend implementation in Chromium already exists. This launch is purely to plumb the encryptionScheme property from the Blink IDL layer to the existing backend. Blink component Blink>Media Search tags media-capabilities, decodingInfo, encryptionScheme, eme, drm, cenc, cbcs TAG review None. This is a trivial IDL plumbing update for a standard that is already shipped by other vendors. TAG review status Not applicable Risks Interoperability and Compatibility None. We are simply exposing the encryptionScheme property to match the W3C spec. Edge and Firefox have already implemented this and pass the relevant tests. *Gecko:* Shipped *WebKit:* Not Supported *Web developers:* Positive 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? Yes. The web-platform-tests were recently updated to robustly verify this plumbing. As shown on the main WPT dashboard, Chrome Stable is currently lagging behind Edge and Firefox: https://wpt.fyi/results/media-capabilities/decodingInfoEncryptedMedia.https.html?label=master&product=chrome%5Bstable%5D&product=edge%5Bexperimental%5D&product=firefox%5Bexperimental%5D&product=safari%5Bexperimental%5D&aligned However, the plumbing is already verified to work in Chrome Canary (where the feature flag is enabled), as shown here: https://wpt.fyi/results/media-capabilities/decodingInfoEncryptedMedia.https.html?label=experimental&label=master&aligned This launch simply flips the flag to stable to catch up. Requires code in //chrome? False Tracking bug https://crbug.com/498284510 Link to entry on the Chrome Platform Status https://chromestatus.com/feature/4644898109259776 -- 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 [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAKG2shGB7yFuQEKVQuXPFrwB%2BzDFN4PqDBHYv8s8qKrgxK_nJg%40mail.gmail.com.
