MMMFVideoPlayHwDeviceExtensionScanCopy Class Reference
| class MMMFVideoPlayHwDeviceExtensionScanCopy |
A custom interface extending the functionality of CMMFVideoPlayHwDevice, adding support for the decoder to handle the copying of the bitstream data into the buffers, combining this with a scan of the data and support for the passing of information from the client to the decoder describing what part of a frame the data contains.
Member Functions Documentation
ScanAndCopyCodedDataL(TPtr8, TVideoInputBuffer *, TInt &, TFramePortion)
Passes a pointer to a piece of coded video data to the decoder. The data buffer, which is left empty by the client, must be retrieved from the decoder with GetBufferL().
-
leave
- "This method may leave with one of the system-wide error codes."
- Pre-condition
- "This method can only be called after the hwdevice has been initialized with Initialize()."
Parameters
| TPtr8 aCodedData | "A pointer to the coded data unit to scan and copy." |
| TVideoInputBuffer * aBuffer | "The empty data buffer." |
| TInt & aConsumed | |
| TFramePortion aPortion = EFramePortionUnknown | "The portion of the frame that the data contains. Defaults to EFramePortionUnknown." |
WriteCodedDataL(TVideoInputBuffer *, TFramePortion)
Writes a piece of coded video data to the decoder. The data buffer must be retrieved from the decoder with GetBufferL().
-
leave
- "This method may leave with one of the system-wide error codes."
- Pre-condition
- "This method can only be called after the hwdevice has been initialized with Initialize()."
Parameters
| TVideoInputBuffer * aBuffer | "The coded data unit to write." |
| TFramePortion aPortion = EFramePortionUnknown | "The portion of the frame that the data contains. Defaults to EFramePortionUnknown." |
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