Class: shaka.net.NetworkingEngine

Constructor

(export) new NetworkingEngine(onSegmentDownloadedopt)

NetworkingEngine wraps all networking operations. This accepts plugins that handle the actual request. A plugin is registered using registerScheme. Each scheme has at most one plugin to handle the request.
Parameters:
Name Type Attributes Description
onSegmentDownloaded function(number, number)= <optional>
 Called when a segment is downloaded. Passed the duration, in milliseconds, that the request took, and the total number of bytes transferred.
Implements:
Extends:
Source:

Extends

Members

(static) defaultRetryParameters

Gets a copy of the default retry parameters.
Source:

(export, static) PluginPriority :number

Priority level for network scheme plugins. If multiple plugins are provided for the same scheme, only the highest-priority one is used.
Type:
  • number
Properties:
Name Value Type Description
FALLBACK 1 number
PREFERRED 2 number
APPLICATION 3 number
Source:

(export, static) RequestType :number

Request types. Allows a filter to decide which requests to read/alter.
Type:
  • number
Properties:
Name Value Type Description
MANIFEST 0 number
SEGMENT 1 number
LICENSE 2 number
APP 3 number
TIMING 4 number
Source:

(private, static, non-null) schemes_ :Object.<string, shaka.net.NetworkingEngine.SchemeObject>

Contains the scheme plugins.
Type:
Source:

(private) destroyed_ :boolean

Type:
  • boolean
Source:

dispatchTarget :EventTarget

The target of all dispatched events. Defaults to |this|.
Type:
  • EventTarget
Inherited From:
Source:

(private, non-null) listeners_ :shaka.util.MultiMap.<shaka.util.FakeEventTarget.ListenerType>

Type:
Inherited From:
Source:

(private, nullable) onSegmentDownloaded_ :?function(number, number)

Type:
  • ?function(number, number)
Source:

(private, non-null) operationManager_ :shaka.util.OperationManager

Type:
Source:

(private, non-null) requestFilters_ :Array.<shaka.extern.RequestFilter>

Type:
Source:

(private, non-null) responseFilters_ :Array.<shaka.extern.ResponseFilter>

Type:
Source:

Methods

(private, static) getLocationProtocol_() → {string}

This is here only for testability. We can't mock location in our tests on all browsers, so instead we mock this.
Source:
Returns:
The value of location.protocol.
Type
string

(static) makeRequest(urisnon-null, retryParams) → {shaka.extern.Request}

Makes a simple network request for the given URIs.
Parameters:
Name Type Description
uris Array.<string>
retryParams shaka.extern.RetryParameters
Source:
Returns:
Type
shaka.extern.Request

(export, static) registerScheme(scheme, plugin, priorityopt)

Registers a scheme plugin. This plugin will handle all requests with the given scheme. If a plugin with the same scheme already exists, it is replaced, unless the existing plugin is of higher priority. If no priority is provided, this defaults to the highest priority of APPLICATION.
Parameters:
Name Type Attributes Description
scheme string
plugin shaka.extern.SchemePlugin
priority number <optional>
Source:

(private, static) shimRequests_(operationnon-null) → (non-null) {shaka.extern.IAbortableOperation.<shaka.extern.Response>}

Shims return values from requests to look like Promises, so that callers have time to update to the new operation-based API.
Parameters:
Name Type Description
operation shaka.extern.IAbortableOperation.<shaka.extern.Response>
Source:
Returns:
Type
shaka.extern.IAbortableOperation.<shaka.extern.Response>

(export, static) unregisterScheme(scheme)

Removes a scheme plugin.
Parameters:
Name Type Description
scheme string
Source:

(export) addEventListener(type, listener, optionsopt)

Add an event listener to this object.
Parameters:
Name Type Attributes Description
type string The event type to listen for.
listener shaka.util.FakeEventTarget.ListenerType The callback or listener object to invoke.
options AddEventListenerOptions | boolean <optional>
 Ignored.
Inherited From:
Source:

(export) clearAllRequestFilters()

Clears all request filters.
Source:

(export) clearAllResponseFilters()

Clears all response filters.
Source:

(export) destroy() → (non-null) {Promise}

Request that this object be destroyed, releasing all resources and shutting down all operations. Returns a Promise which is resolved when destruction is complete. This Promise should never be rejected.
Implements:
Source:
Returns:
Type
Promise

(export) dispatchEvent(eventnon-null) → {boolean}

Dispatch an event from this object.
Parameters:
Name Type Description
event Event The event to be dispatched from this object.
Inherited From:
Source:
Returns:
True if the default action was prevented.
Type
boolean

(private) filterRequest_(type, request) → (non-null) {shaka.extern.IAbortableOperation.<undefined>}

Parameters:
Name Type Description
type shaka.net.NetworkingEngine.RequestType
request shaka.extern.Request
Source:
Returns:
Type
shaka.extern.IAbortableOperation.<undefined>

(private) filterResponse_(type, response) → (non-null) {shaka.extern.IAbortableOperation.<shaka.extern.Response>}

Parameters:
Name Type Description
type shaka.net.NetworkingEngine.RequestType
response shaka.extern.Response
Source:
Returns:
Type
shaka.extern.IAbortableOperation.<shaka.extern.Response>

(private) makeRequestWithRetry_(type, request) → (non-null) {shaka.extern.IAbortableOperation.<shaka.extern.Response>}

Parameters:
Name Type Description
type shaka.net.NetworkingEngine.RequestType
request shaka.extern.Request
Source:
Returns:
Type
shaka.extern.IAbortableOperation.<shaka.extern.Response>

(export) registerRequestFilter(filter)

Registers a new request filter. All filters are applied in the order they are registered.
Parameters:
Name Type Description
filter shaka.extern.RequestFilter
Source:

(export) registerResponseFilter(filter)

Registers a new response filter. All filters are applied in the order they are registered.
Parameters:
Name Type Description
filter shaka.extern.ResponseFilter
Source:

(export) removeEventListener(type, listener, optionsopt)

Remove an event listener from this object.
Parameters:
Name Type Attributes Description
type string The event type for which you wish to remove a listener.
listener shaka.util.FakeEventTarget.ListenerType The callback or listener object to remove.
options EventListenerOptions | boolean <optional>
 Ignored.
Inherited From:
Source:

(export) request(type, request) → (non-null) {shaka.extern.IAbortableOperation.<shaka.extern.Response>}

Makes a network request and returns the resulting data.
Parameters:
Name Type Description
type shaka.net.NetworkingEngine.RequestType
request shaka.extern.Request
Source:
Returns:
Type
shaka.extern.IAbortableOperation.<shaka.extern.Response>

(private) send_(type, request, backoffnon-null, index, lastErrornullable) → (non-null) {shaka.extern.IAbortableOperation.<shaka.extern.Response>}

Sends the given request to the correct plugin and retry using Backoff.
Parameters:
Name Type Attributes Description
type shaka.net.NetworkingEngine.RequestType
request shaka.extern.Request
backoff shaka.net.Backoff
index number
lastError shaka.util.Error <nullable>
Source:
Returns:
Type
shaka.extern.IAbortableOperation.<shaka.extern.Response>

(export) unregisterRequestFilter(filter)

Removes a request filter.
Parameters:
Name Type Description
filter shaka.extern.RequestFilter
Source:

(export) unregisterResponseFilter(filter)

Removes a response filter.
Parameters:
Name Type Description
filter shaka.extern.ResponseFilter
Source:

Type Definitions

SchemeObject

Type:
Properties:
Name Type Description
plugin shaka.extern.SchemePlugin The associated plugin.
priority number The plugin's priority.
Source:

Events

RetryEvent

Fired when the networking engine receives a recoverable error and retries.
Properties:
Name Type Attributes Description
type string 'retry'
error shaka.util.Error <nullable>
 The error that caused the retry. If it was a non-Shaka error, this is set to null.
Source: