#include <mediacmd.h>
This is the base class for a command to a media transcoder and/or media stream. The commands are highly context sensitive, for example OpalVideoUpdatePicture would only apply to a video transcoder.
| virtual PObject* OpalMediaCommand::Clone |
( |
| ) |
const |
|
pure virtual |
| virtual Comparison OpalMediaCommand::Compare |
( |
const PObject & |
obj | ) |
const |
|
virtual |
Compare the two objects and return their relative rank. This function is usually overridden by descendent classes to yield the ranking according to the semantics of the object.
The default function is to use the CompareObjectMemoryDirect() function to do a byte wise memory comparison of the two objects.
- Returns
LessThan, EqualTo or GreaterThan according to the relative rank of the objects.
- Parameters
-
| obj | Object to compare against. |
| virtual PString OpalMediaCommand::GetName |
( |
| ) |
const |
|
pure virtual |
| virtual void* OpalMediaCommand::GetPlugInData |
( |
| ) |
const |
|
virtual |
Get data buffer pointer for transfer to/from codec plug-in.
| virtual unsigned* OpalMediaCommand::GetPlugInSize |
( |
| ) |
const |
|
virtual |
Get data buffer size for transfer to/from codec plug-in.
| virtual void OpalMediaCommand::PrintOn |
( |
ostream & |
strm | ) |
const |
|
virtual |
Standard stream print function. The PObject class has a << operator defined that calls this function polymorphically.
- Parameters
-
| strm | Stream to output text representation |
The documentation for this class was generated from the following file:
