MetaAttribute describes a textual meta information that is part of an audio or video file. More...

Inheritance diagram for MetaAttribute:

Public Member Functions
virtual MetaAttribute *	clone () const =0
	Creates a deep copy of this object. More...

virtual bool_t	immutable () const =0
	Returns whether the object is immutable. More...

virtual const char *	name () const =0
	Returns the name of the meta attribute. More...

virtual bool_t	setName (const char *name)=0
	Sets the name of a meta attribute. More...

virtual bool_t	setValue (const char_t *val)=0
	Sets the value a meta attribute. More...

virtual const char_t *	value () const =0
	Returns the value of the meta attribute. 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...

Protected Member Functions
virtual	~MetaAttribute ()
	This object can be destroyed only by the library that has created it. More...

Detailed Description

MetaAttribute describes a textual meta information that is part of an audio or video file.

See Also: Library::createMetaAttribute; Metadata

Constructor & Destructor Documentation

virtual ~MetaAttribute ( )

protectedvirtual

This object can be destroyed only by the library that has created it.

See Also: primo::Reference::release

Member Function Documentation

virtual MetaAttribute* clone ( ) const

pure virtual

Creates a deep copy of this object.

Returns: A new MetaAttribute object. The caller is responsible for releasing the new object when it's not needed anymore.; NULL if the object cannot be cloned because there is not enough memory.

Remarks

When cloned an immutable object becomes mutable.

            @see \ref object_management "Object Management"

virtual bool_t immutable ( ) const

pure virtual

Returns whether the object is immutable.

An immmutable object cannot be modified and all modifying methods fail to produce a result.

Returns: TRUE if the object is immutable, FALSE otherwise.

Remarks: An immutable object can be modified by the AVBlocks library.; Object immutability spreads to all nested objects. Therefore it is not possible to add/set an immutable object to a mutable object.; When cloned an immutable object becomes mutable.

virtual const char* name ( ) const

pure virtual

Returns the name of the meta attribute.

Returns: A pointer to an ANSI string.

Common meta attribute names are defined in primo::codecs::Meta

See Also: primo::codecs::Meta

virtual bool_t setName ( const char * name )

pure virtual

Sets the name of a meta attribute.

Parameters

[in] name A pointer to an ANSI string.

Common meta attribute names are defined in primo::codecs::Meta

Returns

TRUE if the name is successfully set, otherwise FALSE.

            @see primo::codecs::Meta

virtual bool_t setValue ( const char_t * val )

pure virtual

Sets the value a meta attribute.

Parameters

[in] val A pointer to a Unicode string.

Returns: TRUE if the value is successfully set, otherwise FALSE.

virtual const char_t* value ( ) const

pure virtual

Returns the value of the meta attribute.

Returns: A pointer to a Unicode string.

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation