ImageMetaData Class Reference

Abstract class for image metadata. More...

#include <libmythmetadata/imagemetadata.h>

Inheritance diagram for ImageMetaData:

Public Types
using	TagMap = QMultiMap< QString, QStringList >

Public Member Functions
virtual	~ImageMetaData ()=default
virtual bool	IsValid ()=0
virtual QStringList	GetAllTags ()=0
virtual int	GetOrientation (bool *exists=nullptr)=0
virtual QDateTime	GetOriginalDateTime (bool *exists=nullptr)=0
virtual QString	GetComment (bool *exists=nullptr)=0

Static Public Member Functions
static ImageMetaData *	FromPicture (const QString &filePath)
	Factory to retrieve metadata from pictures. More...
static ImageMetaData *	FromVideo (const QString &filePath)
	Factory to retrieve metadata from videos. More...
static QString	ToString (const QString &name, const QString &label, const QString &value)
	Encodes metadata into a string as <tag name><tag label><tag value> More...
static QStringList	FromString (const QString &str)
	Decodes metadata name, label, value from a string. More...
static TagMap	ToMap (const QStringList &tags)
	Creates a map of metadata tags as. More...

Static Public Attributes
static const QString	kSeparator = "|-|"
	Unique separator to delimit fields within a string. More...

Protected Member Functions
	ImageMetaData (QString filePath)

Protected Attributes
QString	m_filePath
	Image filepath. More...

Private Member Functions
	Q_DECLARE_TR_FUNCTIONS (ImageMetaData)

Detailed Description

Abstract class for image metadata.

Definition at line 91 of file imagemetadata.h.

Member Typedef Documentation

TagMap

using ImageMetaData::TagMap = QMultiMap<QString, QStringList>

Definition at line 111 of file imagemetadata.h.

Constructor & Destructor Documentation

~ImageMetaData()

virtual ImageMetaData::~ImageMetaData ( )

virtualdefault

ImageMetaData()

ImageMetaData::ImageMetaData ( QString  filePath )

inlineexplicitprotected

Definition at line 121 of file imagemetadata.h.

Member Function Documentation

FromPicture()

ImageMetaData * ImageMetaData::FromPicture ( const QString &  filePath )

static

Factory to retrieve metadata from pictures.

Parameters

filePath

Image path

Returns

Picture metadata reader

Definition at line 643 of file imagemetadata.cpp.

Referenced by ImageScanThread< DBFS >::PopulateMetadata(), and ReadMetaThread::run().

FromString()

static QStringList ImageMetaData::FromString ( const QString &  str )

inlinestatic

Decodes metadata name, label, value from a string.

Definition at line 108 of file imagemetadata.h.

Referenced by ToMap().

FromVideo()

ImageMetaData * ImageMetaData::FromVideo ( const QString &  filePath )

static

Factory to retrieve metadata from videos.

Parameters

filePath

Image path

Returns

Video metadata reader

Definition at line 652 of file imagemetadata.cpp.

Referenced by ImageScanThread< DBFS >::PopulateMetadata(), and ReadMetaThread::run().

GetAllTags()

virtual QStringList ImageMetaData::GetAllTags ( )

pure virtual

Implemented in PictureMetaData, and VideoMetaData.

Referenced by ReadMetaThread::run().

GetComment()

virtual QString ImageMetaData::GetComment ( bool *  exists = nullptr )

pure virtual

Implemented in PictureMetaData, and VideoMetaData.

Referenced by ImageScanThread< DBFS >::PopulateMetadata().

GetOrientation()

virtual int ImageMetaData::GetOrientation ( bool *  exists = nullptr )

pure virtual

Implemented in PictureMetaData, and VideoMetaData.

Referenced by ImageScanThread< DBFS >::PopulateMetadata().

GetOriginalDateTime()

virtual QDateTime ImageMetaData::GetOriginalDateTime ( bool *  exists = nullptr )

pure virtual

Implemented in PictureMetaData, and VideoMetaData.

Referenced by ImageScanThread< DBFS >::PopulateMetadata().

IsValid()

virtual bool ImageMetaData::IsValid ( )

pure virtual

Implemented in PictureMetaData, and VideoMetaData.

Q_DECLARE_TR_FUNCTIONS()

ImageMetaData::Q_DECLARE_TR_FUNCTIONS ( ImageMetaData  )

private

ToMap()

ImageMetaData::TagMap ImageMetaData::ToMap ( const QStringList &  tagStrings )

static

Creates a map of metadata tags as.

Parameters

tagStrings

List of strings containing encoded metadata

Returns

multimap<key group, list<key, label, value>>

Definition at line 664 of file imagemetadata.cpp.

Referenced by InfoList::Display().

ToString()

static QString ImageMetaData::ToString ( const QString &  name, const QString &  label, const QString &  value  )

inlinestatic

Encodes metadata into a string as <tag name><tag label><tag value>

Definition at line 104 of file imagemetadata.h.

Referenced by PictureMetaData::GetAllTags(), VideoMetaData::GetAllTags(), and ReadMetaThread::run().

Member Data Documentation

kSeparator

const QString ImageMetaData::kSeparator = "|-|"

static

Unique separator to delimit fields within a string.

Definition at line 101 of file imagemetadata.h.

m_filePath

QString ImageMetaData::m_filePath

protected

Image filepath.

Definition at line 125 of file imagemetadata.h.

Referenced by PictureMetaData::GetAllTags(), and VideoMetaData::GetAllTags().

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The documentation for this class was generated from the following files:

• mythtv/libs/libmythmetadata/imagemetadata.h
• mythtv/libs/libmythmetadata/imagemetadata.cpp