Block Class Reference

Provides functionality for audio and video encoding, decoding and transforming. More...

Inheritance diagram for Block:

Public Member Functions
abstract void	Close ()
	Closes the Block.
abstract void	Dispose ()
	Disposes the Block and reclaims the resources used by the object.
abstract bool	EndOfStream (int inputIndex)
	Tells the Block that there's no more data for the specified input socket.
abstract bool	Flush ()
	Flushes the data buffered in the Block to the output.
abstract bool	Open ()
	Initializes the Block based on the specified input and desired output.
abstract bool	Pull (out int outputIndex, MediaSample outputSample)
	Pulls output data from the Block.
abstract bool	PullUnmanaged (out int outputIndex, MediaSample outputSample)
	Pulls output data from the Block.
abstract bool	Push (int inputIndex, MediaSample inputSample)
	Pushes input data to the Blocks.
abstract bool	PushUnmanaged (int inputIndex, MediaSample inputSample)
	Pushes input data to the Block.

Properties
abstract ErrorInfo	Error [get]
	The error information for the last block operation.
abstract MediaSocketList	Inputs [get]
	A modifiable collection of MediaSocket objects which describe the input data of the Block.
abstract MediaSocketList	Outputs [get]
	A modifiable collection of MediaSocket objects which describe the output data of the Blocks.

Detailed Description

Provides functionality for audio and video encoding, decoding and transforming.

See also

Transcoder

Member Function Documentation

Close()

abstract void Close ( )

pure virtual

Closes the Block.

When closed it can neither accept, nor deliver data.

Implemented in MediaInfo, and Transcoder.

Dispose()

abstract void Dispose ( )

pure virtual

Disposes the Block and reclaims the resources used by the object.

Implemented in MediaInfo, and Transcoder.

EndOfStream()

abstract bool EndOfStream ( int  inputIndex )

pure virtual

Tells the Block that there's no more data for the specified input socket.

Parameters

inputIndex

Specifies the index of the input socket for which there's no more data.

Returns

true if the operation is sucessfull; otherwise false.

Implemented in MediaInfo, and Transcoder.

Flush()

abstract bool Flush ( )

pure virtual

Flushes the data buffered in the Block to the output.

Returns

true if the buffered data is sucessfully flushed; otherwise false.

Implemented in MediaInfo, and Transcoder.

Open()

abstract bool Open ( )

pure virtual

Initializes the Block based on the specified input and desired output.

Returns

true if the Block is sucessfully initialized and is ready to process data; otherwise false.

Implemented in MediaInfo, and Transcoder.

Pull()

abstract bool Pull ( out int  outputIndex, MediaSample  outputSample  )

pure virtual

Pulls output data from the Block.

Parameters

outputIndex	Returns the index of the output socket to which the data belongs.
outputSample	The MediaSample object receives the output data in the MediaBuffer property.

Returns

true if the Block has successfully generated output, otherwise false.

Implemented in MediaInfo, and Transcoder.

PullUnmanaged()

abstract bool PullUnmanaged ( out int  outputIndex, MediaSample  outputSample  )

pure virtual

Pulls output data from the Block.

Parameters

outputIndex	Returns the index of the output socket to which the data belongs.
outputSample	The MediaSample object receives the output data in the UnmanagedMediaBuffer property.

Returns

true if the Block has successfully generated output, otherwise false.

Implemented in MediaInfo, and Transcoder.

Push()

abstract bool Push ( int  inputIndex, MediaSample  inputSample  )

pure virtual

Pushes input data to the Blocks.

Parameters

inputIndex	Specifies the index of the input socket whose data is pushed to the Block.
inputSample	A MediaSample object that contains the input data in the MediaBuffer property.

Returns

true when the Block has successfully processed the input data, otherwise false.

Implemented in MediaInfo, and Transcoder.

PushUnmanaged()

abstract bool PushUnmanaged ( int  inputIndex, MediaSample  inputSample  )

pure virtual

Pushes input data to the Block.

Parameters

inputIndex	Specifies the index of the input socket whose data is pushed to the Block.
inputSample	A MediaSample object that contains the input data in the UnmanagedMediaBuffer property.

Returns

true when the Block has successfully processed the input data, otherwise false.

Implemented in MediaInfo, and Transcoder.