Class: shaka.dash.ContentProtection

A set of functions for parsing and interpreting ContentProtection elements.

Constructor

new ContentProtection()

A set of functions for parsing and interpreting ContentProtection elements.

Implements:
Source:

Members

Aes128Protection_ :string

Type:
  • string
Source:

CencNamespaceUri_ :string

Type:
  • string
Source:

ClearKeyNamespaceUri_ :string

Type:
  • string
Source:

ClearKeySchemeUri_ :string

Type:
  • string
Source:

DashIfNamespaceUri_ :string

Type:
  • string
Source:

licenseUrlParsers_ :Map<string, function(shaka.dash.ContentProtection.Element)>

A map of key system name to license server url parser.
Type:
Source:

MP4Protection_ :string

Type:
  • string
Source:

psshToInitData_ :Map<string, !Uint8Array>

Type:
  • Map<string, !Uint8Array>
Source:

Methods

convertElements_(defaultInit, encryptionScheme, elementsnon-null, keySystemsByURInon-null, keyIdsnon-null) → {Array<shaka.extern.DrmInfo>}

Creates DrmInfo objects from the given element.
Parameters:
Name Type Description
defaultInit Array<shaka.extern.InitDataOverride>
encryptionScheme string
elements Array<shaka.dash.ContentProtection.Element>
keySystemsByURI Object<string, string>
keyIds Set<string>
Source:
Returns:
Type
Array<shaka.extern.DrmInfo>

getClearKeyLicenseUrl(element) → {string}

Gets a ClearKey license URL from a content protection element containing a custom `clearkey::Laurl` or 'dashif:Laurl' elements
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
Source:
Returns:
Type
string

getFairPlayLicenseUrl(element) → {string}

Gets a FairPlay license URL from a content protection element containing a 'dashif:Laurl' element
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
Source:
Returns:
Type
string

getInitDataClearKey_(element, keyIdsnon-null) → {Array<shaka.extern.InitDataOverride>}

Creates ClearKey initData from Default_KID value retrieved from previously parsed ContentProtection tag.
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
keyIds Set<string>
Source:
Returns:
Type
Array<shaka.extern.InitDataOverride>

getInitDataFromPro_(element) → {Array<shaka.extern.InitDataOverride>}

Gets a PlayReady initData from a content protection element containing a PlayReady Pro Object
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
Source:
Returns:
Type
Array<shaka.extern.InitDataOverride>

getPlayReadyLicenseUrl(element) → {string}

Gets a PlayReady license URL from a content protection element containing a PlayReady Header Object
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
Source:
Returns:
Type
string

getWidevineLicenseUrl(element) → {string}

Gets a Widevine license URL from a content protection element containing a custom `ms:laurl` or 'dashif:Laurl' elements
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
Source:
Returns:
Type
string

parseAes128_(element) → {shaka.dash.ContentProtection.Aes128Info}

Parses the given AES-128 ContentProtection element.
Parameters:
Name Type Description
element shaka.dash.ContentProtection.Element
Source:
Returns:
Type
shaka.dash.ContentProtection.Aes128Info

parseElement_(elemnon-null) → {shaka.dash.ContentProtection.Element}

Parses the given ContentProtection element.
Parameters:
Name Type Description
elem shaka.extern.xml.Node
Source:
Returns:
Type
shaka.dash.ContentProtection.Element

parseElements_(elementsnon-null) → {Array<shaka.dash.ContentProtection.Element>}

Parses the given ContentProtection elements. If there is an error, it removes those elements.
Parameters:
Name Type Description
elements Array<!shaka.extern.xml.Node>
Source:
Returns:
Type
Array<shaka.dash.ContentProtection.Element>

parseFromAdaptationSet(elementsnon-null, ignoreDrmInfo, keySystemsByURInon-null) → {shaka.dash.ContentProtection.Context}

Parses info from the ContentProtection elements at the AdaptationSet level.
Parameters:
Name Type Description
elements Array<!shaka.extern.xml.Node>
ignoreDrmInfo boolean
keySystemsByURI Object<string, string>
Source:
Returns:
Type
shaka.dash.ContentProtection.Context

parseFromRepresentation(elementsnon-null, context, ignoreDrmInfo, keySystemsByURInon-null) → {string}

Parses the given ContentProtection elements found at the Representation level. This may update the |context|.
Parameters:
Name Type Description
elements Array<!shaka.extern.xml.Node>
context shaka.dash.ContentProtection.Context
ignoreDrmInfo boolean
keySystemsByURI Object<string, string>
Source:
Returns:
The parsed key ID
Type
string

release()

Request that this object release all internal references.
Implements:
Source:

Type Definitions

Aes128Info

Contains information about the AES-128 keyUri and IV found at the AdaptationSet level.
Type:
  • {keyUri: string, iv: !Uint8Array}
Properties:
Name Type Description
method string The keyUri in the manifest.
iv Uint8Array The IV in the manifest.
Source:

Context

Contains information about the ContentProtection elements found at the AdaptationSet level.
Type:
Properties:
Name Type Attributes Description
defaultKeyId string <nullable>
 The default key ID to use. This is used by parseKeyIds as a default. This can be null to indicate that there is no default.
defaultInit Array<shaka.extern.InitDataOverride> The default init data override. This can be null to indicate that there is no default.
drmInfos Array<shaka.extern.DrmInfo> The DrmInfo objects.
aes128Info shaka.dash.ContentProtection.Aes128Info <nullable>
 The AES-128 key info.
firstRepresentation boolean True when first parsed; changed to false after the first call to parseKeyIds. This is used to determine if a dummy key-system should be overwritten; namely that the first representation can replace the dummy from the AdaptationSet.
Source:

Element

The parsed result of a single ContentProtection element.
Type:
Properties:
Name Type Attributes Description
node shaka.extern.xml.Node The ContentProtection XML element.
schemeUri string The scheme URI.
keyId string <nullable>
 The default key ID, if present.
init Array<shaka.extern.InitDataOverride> The init data, if present. If there is no init data, it will be null. If this is non-null, there is at least one element.
encryptionScheme string <nullable>
 The encryption scheme, if present.
Source: