Event Order
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Event Order
The examples in this topic indicate the type and order of events you can expect when a single client connects to a Windows Media server and requests content. Examples are provided for the HTTP 1.0, HTTP 1.1, RTSP, and MMS protocols.
- Note The MMS protocol is not supported in Windows Server 2008 operating systems.
Each example subscribes to and permits all authorizable events, and each uses anonymous authentication. Please note the following items:
- Only the WMS_EVENT_BEGIN_USER_SESSION and the WMS_EVENT_END_USER_SESSION events are guaranteed to be raised.
- The WMS_EVENT_DESCRIBE event is not guaranteed, but WMS_EVENT_OPEN is. WMS_EVENT_DESCRIBE retrieves information about the content. It is guaranteed if the client is built on top of the Windows Media Format SDK. WMS_EVENT_OPEN retrieves information about the content and creates a data path. WMS_EVENT_OPEN is always raised after WMS_EVENT_DESCRIBE if the latter is present.
- The events raised for HTTP 1.0 differ from those raised for HTTP 1.1 in that HTTP 1.0 sends multiple GET requests to the server.
- WMS_EVENT_OPEN and WMS_EVENT_CLOSE pairs can overlap other WMS_EVENT_OPEN and WMS_EVENT_CLOSE pairs.
- The events raised for the MMSU and MMST protocols are very similar. Only MMST is illustrated here.
- The events raised for RTSPU and RTSPT protocols are very similar. Only RTSPT is illustrated here.
HTTP 1.0 Protocol
AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_BEGIN_USER_SESSION WMS_EVENT_BEGIN_USER_SESSION AUTHORIZE WMS_EVENT_LOGICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_PHYSICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_DESCRIBE WMS_EVENT_DESCRIBE WMS_EVENT_CLOSE WMS_EVENT_DISCONNECT WMS_EVENT_END_USER_SESSION AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_BEGIN_USER_SESSION WMS_EVENT_BEGIN_USER_SESSION AUTHORIZE WMS_EVENT_LOGICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_PHYSICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_OPEN WMS_EVENT_OPEN WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_PLAY WMS_EVENT_PLAY WMS_EVENT_STOP WMS_EVENT_DISCONNECT AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT WMS_EVENT_LOG WMS_EVENT_DISCONNECT WMS_EVENT_CLOSE WMS_EVENT_END_USER_SESSION
HTTP 1.1 Protocol
AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_BEGIN_USER_SESSION WMS_EVENT_BEGIN_USER_SESSION AUTHORIZE WMS_EVENT_LOGICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_PHYSICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_DESCRIBE WMS_EVENT_DESCRIBE AUTHORIZE WMS_EVENT_OPEN WMS_EVENT_OPEN AUTHORIZE WMS_EVENT_SELECT_STREAMS WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_PLAY WMS_EVENT_PLAY WMS_EVENT_STOP WMS_EVENT_LOG WMS_EVENT_DISCONNECT WMS_EVENT_CLOSE WMS_EVENT_END_USER_SESSION
HTTP 1.1 Reconnect
This example illustrates the events raised when an HTTP 1.1 client attempts to reconnect to a Windows Media server. All of the assumptions discussed previously remain unchanged.
AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_BEGIN_USER_SESSION WMS_EVENT_BEGIN_USER_SESSION AUTHORIZE WMS_EVENT_LOGICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_PHYSICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_DESCRIBE WMS_EVENT_DESCRIBE AUTHORIZE WMS_EVENT_OPEN WMS_EVENT_OPEN AUTHORIZE WMS_EVENT_SELECT_STREAMS WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_PLAY WMS_EVENT_PLAY WMS_EVENT_DISCONNECT WMS_EVENT_STOP AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_SELECT_STREAMS WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_PLAY WMS_EVENT_PLAY WMS_EVENT_LOG WMS_EVENT_STOP WMS_EVENT_LOG WMS_EVENT_DISCONNECT WMS_EVENT_CLOSE WMS_EVENT_END_USER_SESSION
MMST Protocol
AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_BEGIN_USER_SESSION WMS_EVENT_BEGIN_USER_SESSION AUTHORIZE WMS_EVENT_LOGICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_PHYSICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_DESCRIBE WMS_EVENT_DESCRIBE AUTHORIZE WMS_EVENT_OPEN WMS_EVENT_OPEN WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_PLAY WMS_EVENT_PLAY WMS_EVENT_STOP WMS_EVENT_LOG WMS_EVENT_CLOSE WMS_EVENT_DISCONNECT WMS_EVENT_END_USER_SESSION
RTSPT Protocol
AUTHORIZE WMS_EVENT_CONNECT WMS_EVENT_CONNECT AUTHORIZE WMS_EVENT_BEGIN_USER_SESSION WMS_EVENT_BEGIN_USER_SESSION AUTHORIZE WMS_EVENT_LOGICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_PHYSICAL_URL_TRANSFORM AUTHORIZE WMS_EVENT_DESCRIBE WMS_EVENT_DESCRIBE AUTHORIZE WMS_EVENT_OPEN WMS_EVENT_OPEN AUTHORIZE WMS_EVENT_SELECT_STREAMS WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_SELECT_STREAMS WMS_EVENT_SELECT_STREAMS AUTHORIZE WMS_EVENT_PLAY WMS_EVENT_PLAY WMS_EVENT_STOP WMS_EVENT_LOG WMS_EVENT_CLOSE WMS_EVENT_DISCONNECT WMS_EVENT_END_USER_SESSION
See Also
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