A Block is a unit that can produce, consume or transform media samples from/to multiple inputs/outputs. More...
Public Member Functions | |
| virtual void | close ()=0 |
| Closes the block. More... | |
| virtual bool_t | endOfStream (int32_t inputIndex)=0 |
| Tells the block that there's no more data for the specified input socket. More... | |
| virtual const primo::error::ErrorInfo * | error () const =0 |
| Returns the error information for the last operation. More... | |
| virtual bool_t | flush ()=0 |
| Flushes the data buffered in the block to the output. More... | |
| virtual MediaSocketList * | inputs () const =0 |
| Returns a modifiable collection of MediaSocket objects which describe the input data of the block. More... | |
| virtual bool_t | open ()=0 |
| Initializes the block based on the specified inputs and outputs. More... | |
| virtual MediaSocketList * | outputs () const =0 |
| Returns a modifiable collection of MediaSocket objects which describe the output data of the block. More... | |
| virtual bool_t | pull (int32_t &outputIndex, primo::codecs::MediaSample *outputData)=0 |
| Pulls output data from the block. More... | |
| virtual bool_t | push (int32_t inputIndex, primo::codecs::MediaSample *inputSample)=0 |
| Pushes input data to the block. More... | |
 Public Member Functions inherited from Reference | |
| virtual int32_t | release () const =0 |
| Releases the instance. More... | |
| virtual int32_t | retain () const =0 |
| Retains the instance. More... | |
| virtual int32_t | retainCount () const =0 |
| Returns the current reference count. More... | |
Detailed Description
A Block is a unit that can produce, consume or transform media samples from/to multiple inputs/outputs.
Member Function Documentation
|
pure virtual |
|
pure virtual |
Tells the block that there's no more data for the specified input socket.
This method can be used only in push mode.
- Parameters
-
inputIndex [in] specifies the index of the input socket for which there's no more data.
- Returns
- TRUE if the operation is successful, otherwise FALSE.
Implemented in Transcoder.
|
pure virtual |
Returns the error information for the last operation.
- Returns
- A pointer to an ErrorInfo object.
Implemented in Transcoder.
|
pure virtual |
Flushes the data buffered in the block to the output.
This method can be used only in push mode.
- Returns
- TRUE if the buffered data is successfully flushed, otherwise FALSE.
- Remarks
- This method also marks the end-of-stream for all inputs. No data should be pushed to the block after it is flushed.
Implemented in Transcoder.
|
pure virtual |
Returns a modifiable collection of MediaSocket objects which describe the input data of the block.
- Returns
- A pointer to a collection of input sockets. Cannot be NULL.
Implemented in Transcoder, and MediaInfo.
|
pure virtual |
Initializes the block based on the specified inputs and outputs.
- Returns
- TRU The block is successfully initialized and is ready to process data, otherwise FALSE.
Implemented in Transcoder, and MediaInfo.
|
pure virtual |
Returns a modifiable collection of MediaSocket objects which describe the output data of the block.
- Returns
- A pointer to a collection of output sockets. Cannot be NULL.
Implemented in Transcoder, and MediaInfo.
|
pure virtual |
Pulls output data from the block.
- Parameters
-
outputIndex [out] contains the index of the output socket to which the data belongs. outputData [out] A pointer to a MediaSample object that receives the output data.
- Returns
- TRUE The block has successfully generated output, otherwise FALSE.
Implemented in Transcoder.
|
pure virtual |
Pushes input data to the block.
- Parameters
-
inputIndex [in] Specifies the index of the input socket whose data is pushed to the block. inputSample [in] A pointer to a MediaSample object that contains the input data.
- Returns
- TRUE The block has successfully processed the input data, otherwise FALSE.
Implemented in Transcoder, and MediaInfo.