Rbrowser license key12/18/2023 If the application waits for the encrypted event but then MediaKeys shows it can't handle the chosen format/codec, it may be too late to switch without interrupting playback. It's best to negotiate a MediaKeys configuration before selecting a format and codec. However, the CDM may only support a subset of what the browser supports for unencrypted content. If multiple formats or codecs are available, MediaSource.isTypeSupported() or HTMLMediaElement.canPlayType() can both be used to select the right one. Here's how the components of EME interact, corresponding to the code example below: Services such as Netflix must authenticate users within their web application: when a user signs into the application, the application determines the user's identity and privileges. Retrieval of keys to enable media playback happens after (optionally) authenticating a user. Note that an application using EME interacts with a license server to get keys to enable decryption, but user identity and authentication are not part of EME. Packaging service: Encodes and encrypts media for distribution/consumption.Negotiation with the license server is the responsibility of the application. License (Key) server: Interacts with a CDM to provide keys to decrypt media.As with Key Systems, EME doesn't define any CDMs, but provides an interface for applications to interact with CDMs that are available. Content Decryption Module (CDM): A client-side software or hardware mechanism that enables playback of encrypted media.EME doesn't define Key Systems themselves, apart from Clear Key (more about that below). Key System: A content protection (DRM) mechanism.This is achieved by requiring content protection system-specific messaging to be mediated by the page rather than assuming out-of-band communication between the encryption system and a license or other server.ĮME implementations use the following external components: The common API supports a simple set of content encryption capabilities, leaving application functions such as authentication and authorization to page authors. Implementation of Digital Rights Management is not required for compliance with this specification: only the Clear Key system is required to be implemented as a common baseline. Rather, it defines a common API that may be used to discover, select and interact with such systems as well as with simpler content encryption systems. This specification does not define a content protection or Digital Rights Management system. License/key exchange is controlled by the application, facilitating the development of robust playback applications supporting a range of content decryption and protection technologies. The API supports use cases ranging from simple clear key decryption to high value video (given an appropriate user agent implementation). This proposal extends HTMLMediaElement providing APIs to control playback of protected content. Being an 'extension' means that browser support for EME is optional: if a browser does not support encrypted media, it will not be able to play encrypted media, but EME is not required for HTML spec compliance. The former is made possible by the standardized APIs and flow while the latter is made possible by the concept of Common Encryption.ĮME is an extension to the HTMLMediaElement specification - hence the name. Related technology 2: Dynamic Adaptive Streaming over HTTP (DASH)Įncrypted Media Extensions provides an API that enables web applications to interact with content protection systems, to allow playback of encrypted audio and video.ĮME is designed to enable the same app and encrypted files to be used in any browser, regardless of the underlying protection system. Related technology 1: Media Source Extensions (MSE).
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