MetaIOAVFComment Class Reference

Attempt to read metadata in files without a specific metadata reading implementation. More...

#include <libmythmetadata/metaioavfcomment.h>

Inheritance diagram for MetaIOAVFComment:

Collaboration diagram for MetaIOAVFComment:

Public Member Functions
	MetaIOAVFComment (void)=default
	~MetaIOAVFComment (void) override=default
bool	write (const QString &filename, MusicMetadata *mdata) override
	Writes all metadata back to a file. More...
MusicMetadata *	read (const QString &filename) override
	Reads MusicMetadata from a file. More...
Public Member Functions inherited from MetaIO
	MetaIO (void)
virtual	~MetaIO (void)=default
virtual bool	writeVolatileMetadata ([[maybe_unused]] const QString &filename, [[maybe_unused]] MusicMetadata *mdata)
	Writes rating and playcount back to a file. More...
virtual bool	supportsEmbeddedImages (void)
	Does the tag support embedded cover art. More...
virtual AlbumArtList	getAlbumArtList ([[maybe_unused]] const QString &filename)
	Reads the list of embedded images in the tag. More...
virtual bool	writeAlbumArt ([[maybe_unused]] const QString &filename, [[maybe_unused]] const AlbumArtImage *albumart)
virtual bool	removeAlbumArt ([[maybe_unused]] const QString &filename, [[maybe_unused]] const AlbumArtImage *albumart)
virtual bool	changeImageType ([[maybe_unused]] const QString &filename, [[maybe_unused]] const AlbumArtImage *albumart, [[maybe_unused]] ImageType newType)
virtual QImage *	getAlbumArt ([[maybe_unused]] const QString &filename, [[maybe_unused]] ImageType type)
void	readFromFilename (const QString &filename, QString &artist, QString &album, QString &title, QString &genre, int &tracknum)
	Reads MusicMetadata based on the folder/filename. More...
MusicMetadata *	readFromFilename (const QString &filename, bool blnLength=false)
	Reads MusicMetadata based on the folder/filename. More...
void	readFromFilename (MusicMetadata *metadata)
	Reads MusicMetadata based on the folder/filename. More...
virtual bool	TagExists ([[maybe_unused]] const QString &filename)

Private Member Functions
std::chrono::milliseconds	getTrackLength (const QString &filename) override
	Find the length of the track (in milliseconds) More...

Static Private Member Functions
static std::chrono::milliseconds	getTrackLength (AVFormatContext *pContext)
	Find the length of the track (in milliseconds) More...

Additional Inherited Members
Static Public Member Functions inherited from MetaIO
static MetaIO *	createTagger (const QString &filename)
	Finds an appropriate tagger for the given file. More...
static MusicMetadata *	readMetadata (const QString &filename)
	Read the metadata from filename directly. More...
static MusicMetadata *	getMetadata (const QString &filename)
	Get the metadata for filename. More...
Static Public Attributes inherited from MetaIO
static const QString	kValidFileExtensions
Protected Member Functions inherited from MetaIO
void	saveTimeStamps (void)
void	restoreTimeStamps (void)
Protected Attributes inherited from MetaIO
QString	m_filename
QString	m_filenameFormat

Detailed Description

Attempt to read metadata in files without a specific metadata reading implementation.

N.B. No write support

Definition at line 19 of file metaioavfcomment.h.

Constructor & Destructor Documentation

MetaIOAVFComment()

MetaIOAVFComment::MetaIOAVFComment ( void  )

default

~MetaIOAVFComment()

MetaIOAVFComment::~MetaIOAVFComment ( void  )

overridedefault

Member Function Documentation

write()

bool MetaIOAVFComment::write ( const QString &  filename, MusicMetadata *  mdata  )

overridevirtual

Writes all metadata back to a file.

Parameters

filename	The filename to write metadata to
mdata	A pointer to a MusicMetadata object

Returns

Boolean to indicate success/failure.

Implements MetaIO.

Definition at line 18 of file metaioavfcomment.cpp.

read()

MusicMetadata * MetaIOAVFComment::read ( const QString &  filename )

overridevirtual

Reads MusicMetadata from a file.

Parameters

filename

The filename to read metadata from.

Returns

MusicMetadata pointer or nullptr on error

Implements MetaIO.

Definition at line 27 of file metaioavfcomment.cpp.

getTrackLength() [1/2]

std::chrono::milliseconds MetaIOAVFComment::getTrackLength ( const QString &  filename )

overrideprivatevirtual

Find the length of the track (in milliseconds)

Parameters

filename

The filename for which we want to find the length.

Returns

An integer (signed!) to represent the length in milliseconds.

Implements MetaIO.

Definition at line 99 of file metaioavfcomment.cpp.

Referenced by read().

getTrackLength() [2/2]

std::chrono::milliseconds MetaIOAVFComment::getTrackLength ( AVFormatContext *  pContext )

staticprivate

Find the length of the track (in milliseconds)

Parameters

pContext

The AV Format Context.

Returns

An integer (signed!) to represent the length in milliseconds.

Definition at line 128 of file metaioavfcomment.cpp.

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

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