|Microsoft DirectX 9.0|
This topic applies to Windows XP Service Pack 1 only.
The Stream Buffer Engine posts the following events to the Filter Graph Manager.
|Event notification code||Description|
|STREAMBUFFER_EC_TIMEHOLE||The Stream Buffer Source filter has reached a gap in the content.
param1 = Time of the start of the gap, in milliseconds, relative to the content start.
param2 = Duration of the gap, in milliseconds.
|STREAMBUFFER_EC_STALE_DATA_READ||The Stream Buffer Source is reading a backing file that has been marked for deletion.|
|STREAMBUFFER_EC_STALE_FILE_DELETED||A backing file has been deleted.|
|STREAMBUFFER_EC_CONTENT_BECOMING_STALE||The Stream Buffer Source has lagged behind the Stream Buffer Sink by more than a pre-set number of backing files. For more information, see IStreamBufferConfigure::GetBackingFileCount.|
|STREAMBUFFER_EC_READ_FAILURE||A read failure has occurred.
param1 = HRESULT code of the failure
param2 = not used
|STREAMBUFFER_EC_WRITE_FAILURE||A write failure has occurred.|
|STREAMBUFFER_EC_RATE_CHANGED||The playback rate has changed.
param1 = old playback rate x 1000
param2 = new playback rate x 1000
For example, 2x speed is represented as 2000.