Custom Plug-in Interfaces (C++)

Article
09/04/2009

You can use the following interfaces to create custom plug-ins for a Windows Media server.

Note

These interfaces are available only on Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; and Windows Server 2008.

Interface	Description
DWMSNamedValuesEvents	Declares an event sink that you can implement in a plug-in to handle an event notice raised by the server when a plug-in property is created, removed, or modified.
INSSBuffer	Provides methods for supporting a segment of memory to store data.
IWMSAuthenticationCallback	Contains a method that can be called by a plug-in to notify the server whether a client has been authenticated.
IWMSAuthenticationContext	Contains methods that can be used to authenticate a client and retrieve an authentication plug-in.
IWMSAuthenticationPlugin	Provides a method for creating an IWMSAuthenticationContext interface.
IWMSBasicPlugin	Contains methods to initialize, enable, disable, and shut down a plug-in and expose an administration interface.
IWMSBufferAllocator	Provides methods for allocating a buffer.
IWMSCacheItemDescriptor	Retrieves the size, version number, expiration date, and URL of cached content. This interface is implemented by a cache plug-in and called by the server.
IWMSCacheItemCollection	Contains a collection of IWMSCacheItemDescriptor interfaces. This interface is implemented by a cache plug-in and called by the server.
IWMSCacheProxy	Contains methods that administer a cache and specify cache policy. This interface is implemented by a cache plug-in and called by the server.
IWMSCacheProxyCallback	Contains methods that enable a cache plug-in to respond to calls that the server makes through the IWMSCacheProxy interface. This interface is implemented by the server and called by a cache plug-in.
IWMSCacheProxyServer	Contains methods that validate client authorization, retrieve information about cached content, determine whether the content is current, and download content to a cache. This interface is implemented by the server and called by a cache plug-in.
IWMSCacheProxyServerCallback	Contains methods that enable a cache plug-in to respond to calls that the server makes through the IWMSCacheProxyServer interface. This interface is implemented by a cache plug-in and called by the server.
IWMSClassObject	Allows plug-in components to allocate commonly used data structures.
IWMSCommandContext	Provides methods for retrieving or deleting the current command request and response.
IWMSContext	Provides methods for retrieving, adding or updating a context.
IWMSContentDescriptionList	Provides methods for managing a description list.
IWMSDataContainer	Supports methods for a data container.
IWMSDataContainerCallback	Provides methods to receive event notices from the server about calls to methods of the IWMSDataContainer interface.
IWMSDataContainerVersion	Provides methods for enumerating and controlling settings.
IWMSDataSourcePlugin	Provides methods to compare data container versions, create a storage system enumerator, and open and delete a data container.
IWMSDataSourcePluginCallback	Provides methods to receive event notices from the server about calls to methods of the IWMSDataContainer interface.
IWMSDirectoryIWMSDirectory Interface	Provides methods for navigating a directory structure.
IWMSEventAuthorizationCallback	Provides methods to receive event notices from the server about calls to methods of the IWMSEventAuthorizationPlugin interface.
IWMSEventAuthorizationPlugin	Provides methods for authorizing clients.
IWMSEventLog	Provides a method for event logging.
IWMSEventNotificationPlugin	Provides methods for event notification.
IWMSHeaderLine	Provides a method that can be used to retrieve a client cookie.
IWMSIncomingCounters	Provides methods for updating incoming counters.
IWMSPacket	Provides methods for managing the buffers, attributes, and headers associated with a packet.
IWMSPacketList	Provides methods for managing the packets, attributes, and buffers associated with a packet list.
IWMSPacketListCallback	Provides a method to respond to the IWMSPacketList::ReportStatus method call.
IWMSPacketParser	Provides methods to manipulate individual packets. This interface is implemented by a media parser plug-in.
IWMSPacketStreamDataContainer	Provides methods to notify the server of stream signals and to determine the maximum packet size used by a data container.
IWMSPacketStreamer	Provides methods for retrieving information about streams being sent down a data path and for controlling the streams being sent down a data path.
IWMSPacketStreamerCallback	Provides methods that enable a plug-in to respond to IWMSPacketStreamer method calls.
IWMSPlaylistParser	Provides methods for parsing different types of playlist files.
IWMSPlaylistParserCallback	Provides methods to receive event notices from the server about calls to methods of the IWMSPlaylistParser interface.
IWMSPlaylistParserPlugin	Provides a method for creating a playlist parser object that is to be used by the server.
IWMSPlaylistParserPluginCallback	Used to receive event notices from the server, to determine when a playlist parser plug-in has been created.
IWMSProxyContext	Provides methods that enable a network data source plug-in to discover upstream proxy settings and credentials to facilitate cache proxy binding.
IWMSPushSink	Provides methods to process packet lists and connect to upstream data sources.
IWMSPushSource	Provides methods that control the flow of data through a data path.
IWMSPushSourceCallback	Provides methods that enable a plug-in to respond to IWMSPushSource method calls.
IWMSStreamHeader	Provides methods that describe the header for a specific stream.
IWMSStreamHeaderList	Provides a collection of IWMSStreamHeader objects and methods that describe each stream in a digital media stream.
IWMSStreamSignalHandler	Provides a method to provide notification of stream signals defined by WMS_STREAM_SIGNAL_TYPE.
IWMSStreamSwitchDescriptionList	Provides methods that control which streams are sent down a data path.
IWMSTransportProperties	Provides methods for retrieving, adding, or updating network transport properties used by the server and a data sink plug-in during the media streaming process.

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Custom Plug-in Interfaces (C++)

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