| class MMMFHwDeviceObserver |
The observer class interface for a hardware device listener class.
MMMFHwDeviceObserver provides a generic interface which should be implemented by the classes that are interested in receiving events from the CMMFHwDevice implementation class.
| Public Member Functions | |
|---|---|
| TInt | EmptyThisHwBuffer ( CMMFBuffer &) |
| void | Error ( TInt ) |
| TInt | FillThisHwBuffer ( CMMFBuffer &) |
| TInt | MsgFromHwDevice ( TUid , const TDesC8 &) |
| void | Stopped () |
| TInt | EmptyThisHwBuffer | ( | CMMFBuffer & | aHwDataBuffer | ) | [pure virtual] |
Handles CMMFHwDevice object s data request event.
This function is called by the CMMFHwDevice implementation class when it fills encoded data into a buffer.
| CMMFBuffer & aHwDataBuffer | The buffer with encoded data. |
| void | Error | ( | TInt | aError = KErrNone | ) | [pure virtual] |
Called by a CMMFHwDevice derived class when it stops a decoding/encoding task.
| TInt | FillThisHwBuffer | ( | CMMFBuffer & | aHwDataBuffer | ) | [pure virtual] |
Handles CMMFHwDevice object s data request event.
This function is called by the CMMFHwDevice implementation class when it needs data for decoding.
| CMMFBuffer & aHwDataBuffer | The buffer to fill the data. |
| TInt | MsgFromHwDevice | ( | TUid | aMessageType, |
| const TDesC8 & | aMsg | |||
| ) | [pure virtual] | |||
Handles the CMMFHwDevice object s message event.
This function is called by the CMMFHwDevice implementation class when a message is generated and passed back to the observer.
| void | Stopped | ( | ) | [pure virtual] |
Called by a CMMFHwDevice derived class when it stops a decoding/encoding task.
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