OPAL
Version 3.10.10
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#include <mediacmd.h>
Public Member Functions | |
Overrides from PObject | |
void | PrintOn (ostream &strm) const |
virtual Comparison | Compare (const PObject &obj) const |
Operations | |
virtual PString | GetName () const =0 |
virtual void * | GetPlugInData () const |
virtual unsigned * | GetPlugInSize () const |
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.
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inlinevirtual |
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.
LessThan
, EqualTo
or GreaterThan
according to the relative rank of the objects. obj | Object to compare against. |
References GetName().
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pure virtual |
Get the name of the command.
Implemented in OpalTemporalSpatialTradeOff, OpalVideoPictureLoss, and OpalVideoUpdatePicture.
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inlinevirtual |
Get data buffer pointer for transfer to/from codec plug-in.
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inlinevirtual |
Get data buffer size for transfer to/from codec plug-in.
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inline |
Standard stream print function. The PObject class has a << operator defined that calls this function polymorphically.
strm | Stream to output text representation |
References GetName().