MetaPicture describes a meta image that is part of an audio or video file. More...

#include <PrimoAV.h>

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

virtual const uint8_t *	data () const =0
	Returns the start of the image data. More...

virtual int32_t	dataSize () const =0
	Returns the number of image bytes. More...

virtual const char_t *	description () const =0
	Returns a picture description as a free text. More...

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

virtual const char *	mimeType () const =0
	Returns the picture MIME type. More...

virtual MetaPictureType::Enum	pictureType () const =0
	Returns the meta picture type (front cover, back cover, artist, etc.) More...

virtual bool_t	setData (const void *data, int32_t dataSize)=0
	Sets image data. More...

virtual void	setDescription (const char_t *description)=0
	Sets picture description. More...

virtual void	setMimeType (const char *mimeType)=0
	Sets the picture MIME type. More...

virtual void	setPictureType (MetaPictureType::Enum picType)=0
	Sets the picture type (front cover, back cover, artist, etc.) 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	~MetaPicture ()
	This object can be destroyed only by the library that has created it. More...

Detailed Description

MetaPicture describes a meta image that is part of an audio or video file.

See Also: Library::createMetaPicture; Metadata

Constructor & Destructor Documentation

virtual ~MetaPicture ( )

protectedvirtual

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

See Also: primo::Reference::release

Member Function Documentation

virtual MetaPicture* clone ( ) const

pure virtual

Creates a deep copy of this object.

Returns: A new MetaPicture 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.

See Also: Object Management

virtual const uint8_t* data ( ) const

pure virtual

Returns the start of the image data.

The image is a jpeg, png or another image type.

Returns: A pointer to the start of the image data. The number of image bytes is given by the MetaPicture::dataSize property. The image type (jpeg, png, etc.) is given by the MetaPicture::mimeType property.

See Also: MetaPicture::mimeType; MetaPicture::dataSize

virtual int32_t dataSize ( ) const

pure virtual

Returns the number of image bytes.

Returns: The number of image bytes that are returned by the MetaPicture::data property.

virtual const char_t* description ( ) const

pure virtual

Returns a picture description as a free text.

Returns: Unicode string. Can be NULL if the picture has no description.

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* mimeType ( ) const

pure virtual

Returns the picture MIME type.

Returns: The MIME type is an ANSI string.

See Also: primo::codecs::MimeType

virtual MetaPictureType::Enum pictureType ( ) const

pure virtual

Returns the meta picture type (front cover, back cover, artist, etc.)

Returns: A picture type constant defined in MetaPictureType::Enum.

See Also: MetaPictureType::Enum

virtual bool_t setData	(	const void *	data,
		int32_t	dataSize
	)

pure virtual

Sets image data.

Parameters

data	[in] A pointer to the new image data.
dataSize	[in] The size of the new image in bytes .

Returns: TRUE if the data is successfully set, FALSE if there's an error.

The supplied data is copied internally and is not required to be valid after the method returns.

See Also: MetaPicture::data; MetaPicture::dataSize

virtual void setDescription ( const char_t * description )

pure virtual

Sets picture description.

Parameters

description [in] A pointer to a Unicode string. Can be NULL in which case the picture description is cleared.

virtual void setMimeType ( const char * mimeType )

pure virtual

Sets the picture MIME type.

Parameters

mimeType [in] A pointer to ANSI string specifying the MIME type

See Also: primo::codecs::MimeType

virtual void setPictureType ( MetaPictureType::Enum picType )

pure virtual

Sets the picture type (front cover, back cover, artist, etc.)

Parameters

[in] picType A picture type constant defined in MetaPictureType::Enum.

See Also: MetaPictureType::Enum

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation