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1/6/2010
The IMediaObjectImpl template provides partial implementations for the following IMediaObject methods.
The derived class must provide a corresponding method, which the IMediaObject method calls internally. The internal methods have the prefix Internal- to the method name. The internal methods use the same parameters as the interface methods.
| IMediaObject method | Derived class method |
|---|---|
InternalAllocateStreamingResources |
|
InternalDiscontinuity |
|
InternalFlush |
|
InternalFreeStreamingResources |
|
InternalGetInputMaxLatency |
|
InternalGetInputSizeInfo |
|
InternalGetInputStreamInfo |
|
InternalGetInputType |
|
InternalGetOutputSizeInfo |
|
InternalGetOutputStreamInfo |
|
InternalGetOutputType |
|
InternalProcessInput |
|
InternalProcessOutput |
|
InternalSetInputMaxLatency |
For the remaining IMediaObject methods, there is not a one-to-one correspondence between interface methods and internal methods.
The following table summarizes which methods are fully implemented by the template and which methods call helper methods from the derived class.
| IMediaObject method | IMediaObjectImpl implementation |
|---|---|
Fully implemented. |
|
Fully implemented. |
|
Fully implemented. |
|
Calls InternalAcceptingInput. |
|
Implemented as DMOLock. Calls Lock or Unlock. |
|
Calls InternalCheckInputType. |
|
Calls InternalCheckOutputType. |
See Also
Reference
DMO Reference
DMO Base Class Reference