Class: shaka.polyfill.MCapEncryptionScheme

Constructor

new MCapEncryptionScheme()

Source:
See:

Members

originalDecodingInfo_ :function(this:MediaCapabilities, !MediaDecodingConfiguration): !Promise<!MediaCapabilitiesDecodingInfo>

The original decodingInfo, before we patched it.
Type:
  • function(this:MediaCapabilities, !MediaDecodingConfiguration): !Promise<!MediaCapabilitiesDecodingInfo>
Source:

Methods

convertToMediaKeySystemConfig_(decodingConfignon-null) → {MediaKeySystemConfiguration}

Convert the MediaDecodingConfiguration object to a MediaKeySystemConfiguration object.
Parameters:
Name Type Description
decodingConfig MediaDecodingConfiguration The decoding configuration.
Source:
Returns:
The converted MediaKeys configuration.
Type
MediaKeySystemConfiguration

getMediaKeySystemAccess_(requestedConfigurationnon-null) → {Promise<!MediaKeySystemAccess>}

Call navigator.requestMediaKeySystemAccess to get the MediaKeySystemAccess information.
Parameters:
Name Type Description
requestedConfiguration MediaDecodingConfiguration The requested decoding configuration.
Source:
Returns:
A Promise to a MediaKeySystemAccess instance.
Type
Promise<!MediaKeySystemAccess>

install()

Installs the polyfill. To avoid the possibility of extra user prompts, this will shim MC so long as it exists, without checking support for encryptionScheme upfront. The support check will happen on-demand the first time MC is used.
Source:

polyfillDecodingInfo_(requestedConfigurationnon-null) → {Promise<!MediaCapabilitiesDecodingInfo>}

A polyfill for mediaCapabilities.decodingInfo to handle the encryptionScheme field in browsers that don't support it. It uses the user-agent string to guess what encryption schemes are supported, then those guesses are used to reject unsupported schemes.
This:
  • MediaCapabilities
Parameters:
Name Type Description
requestedConfiguration MediaDecodingConfiguration The requested decoding configuration.
Source:
Returns:
A Promise to a result describing the capabilities of the browser in the request configuration.
Type
Promise<!MediaCapabilitiesDecodingInfo>

probeDecodingInfo_(requestedConfigurationnon-null) → {Promise<!MediaCapabilitiesDecodingInfo>}

A shim for mediaCapabilities.decodingInfo to check for encryptionScheme support. Only used until we know if the browser has native support for the encryptionScheme field.
This:
  • MediaCapabilities
Parameters:
Name Type Description
requestedConfiguration MediaDecodingConfiguration The requested decoding configuration.
Source:
Returns:
A Promise to a result describing the capabilities of the browser in the request configuration.
Type
Promise<!MediaCapabilitiesDecodingInfo>