Encrypted Media Extensions API
The Encrypted Media Extensions API provides interfaces for controlling the playback of content which is subject to a digital restrictions management scheme.
Interfaces
MediaKeyMessageEvent- Contains the content and related data when the content decryption module (CDM) generates a message for the session.
MediaKeys- Represents a set of keys that an associated
HTMLMediaElement can use for decryption of media data during playback. MediaKeySession- Represents a context for message exchange with a content decryption module (CDM).
MediaKeyStatusMap- Is a read-only map of media key statuses by key IDs.
MediaKeySystemAccess- Provides access to a Key System for decryption and/or a content protection provider.
MediaKeySystemConfiguration- Provides configuration information about the media key system.
Specifications
|
Desktop |
|
Chrome |
Edge |
Firefox |
Internet Explorer |
Opera |
Safari |
| Basic support |
42
- 42
- The spec requires that the passed
supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.
- The function does not exist in insecure contexts. This was not enforced until Chrome 58.
|
Yes |
Yes
- Yes
- Starting in Firefox 55, if neither
audioCapabilities nor videoCapabilities is specified in supportedConfigurations, a warning is output to the web console.
- In addition, starting in Firefox 55, if in
supportedConfigurations, either audioCapabilities's or videoCapabilities's contentType value doesn't specify a "codecs" substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.
- In the future, if neither
audioCapabilities nor videoCapabilities is specified in the supportedConfigurations, a NotSupported exception will be thrown.
|
? |
29
- 29
- The spec requires that the passed
supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.
- The function does not exist in insecure contexts. This was not enforced until Opera 45.
|
? |
|
Mobile |
|
Android webview |
Chrome for Android |
Edge Mobile |
Firefox for Android |
Opera for Android |
iOS Safari |
Samsung Internet |
| Basic support |
43
- 43
- The spec requires that the passed
supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.
- The function does not exist in insecure contexts. This was not enforced until version 58.
|
42
- 42
- The spec requires that the passed
supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.
- The function does not exist in insecure contexts. This was not enforced until Chrome 58.
|
Yes |
Yes
- Yes
- Starting in Firefox 55, if neither
audioCapabilities nor videoCapabilities is specified in supportedConfigurations, a warning is output to the web console.
- In addition, starting in Firefox 55, if in
supportedConfigurations, either audioCapabilities's or videoCapabilities's contentType value doesn't specify a "codecs" substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.
- In the future, if neither
audioCapabilities nor videoCapabilities is specified in the supportedConfigurations, a NotSupported exception will be thrown.
|
29
- 29
- The spec requires that the passed
supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.
- The function does not exist in insecure contexts. This was not enforced until Opera 45.
|
? |
? |