The QMediaResource class provides a description of a media resource. More...

Public Methods
	QMediaResource ()

	QMediaResource (const QMediaResource &other)

	QMediaResource (const QNetworkRequest &request, const QString &mimeType=QString ())

	QMediaResource (const QUrl &url, const QString &mimeType=QString ())

	~QMediaResource ()

int	audioBitRate () const

QString	audioCodec () const

int	channelCount () const

qint64	dataSize () const

bool	isNull () const

QString	language () const

QString	mimeType () const

bool	operator!= (const QMediaResource &other) const

QMediaResource &	operator= (const QMediaResource &other)

bool	operator== (const QMediaResource &other) const

QNetworkRequest	request () const

QSize	resolution () const

int	sampleRate () const

void	setAudioBitRate (int rate)

void	setAudioCodec (const QString &codec)

void	setChannelCount (int channels)

void	setDataSize (const qint64 size)

void	setLanguage (const QString &language)

void	setResolution (const QSize &resolution)

void	setResolution (int width, int height)

void	setSampleRate (int sampleRate)

void	setVideoBitRate (int rate)

void	setVideoCodec (const QString &codec)

QUrl	url () const

int	videoBitRate () const

QString	videoCodec () const

Related Functions
These are not member functions
	QMediaResourceList

Detailed Description

A media resource is composed of a url() containing the location of the resource and a set of properties that describe the format of the resource. The properties provide a means to assess a resource without first attempting to load it, and in situations where media be represented by multiple alternative representations provide a means to select the appropriate resource.

Media made available by a remote services can often be available in multiple encodings or quality levels, this allows a client to select an appropriate resource based on considerations such as codecs supported, network bandwidth, and display constraints. QMediaResource includes information such as the mimeType(), audioCodec() and videoCodec() codecs, audioBitRate() and videoBitRate() bit rates, and resolution() so these constraints and others can be evaluated.

The only mandatory property of a QMediaResource is the url().

See also: QMediaContent

Constructor & Destructor Documentation

QMediaResource::QMediaResource ( )

Constructs a null media resource.

QMediaResource::QMediaResource	(	const QUrl &	url,
		const QString &	mimeType = `QString()`
	)

Constructs a media resource with the given mimeType from a url.

QMediaResource::QMediaResource	(	const QNetworkRequest &	request,
		const QString &	mimeType = `QString()`
	)

Constructs a media resource with the given mimeType from a network request.

QMediaResource::QMediaResource ( const QMediaResource & other )

Constructs a copy of a media resource other.

QMediaResource::~QMediaResource ( )

Destroys a media resource.

Method Documentation

int QMediaResource::audioBitRate ( ) const

Returns the bit rate in bits per second of a media resource's audio stream. This may be zero if the bit rate is unknown, or the resource contains no audio stream.

QString QMediaResource::audioCodec ( ) const

Returns the audio codec of a media resource. This may be null if the media resource does not contain an audio stream, or the codec is unknown.

int QMediaResource::channelCount ( ) const

Returns the number of audio channels in a media resource. This may be zero if the sample size is unknown, or the resource contains no audio stream.

qint64 QMediaResource::dataSize ( ) const

Returns the size in bytes of a media resource. This may be zero if the size is unknown.

bool QMediaResource::isNull ( ) const

Identifies if a media resource is null. Returns true if the resource is null, and false otherwise.

QString QMediaResource::language ( ) const

Returns the language of a media resource as an ISO 639-2 code. This may be null if the language is unknown.

QString QMediaResource::mimeType ( ) const

Returns the MIME type of a media resource. This may be null if the MIME type is unknown.

bool QMediaResource::operator!= ( const QMediaResource & other ) const

Documentation pending.

QMediaResource & QMediaResource::operator= ( const QMediaResource & other )

Assigns the value of other to a media resource.

bool QMediaResource::operator== ( const QMediaResource & other ) const

Compares a media resource to other. Returns true if the resources are identical, and false otherwise.

QNetworkRequest QMediaResource::request ( ) const

Returns the network request associated with this media resource.

QSize QMediaResource::resolution ( ) const

Returns the resolution in pixels of a media resource. This may be null is the resolution is unknown, or the resource contains no pixel data (i.e. the resource is an audio stream.

int QMediaResource::sampleRate ( ) const

Returns the audio sample rate of a media resource. This may be zero if the sample size is unknown, or the resource contains no audio stream.

void QMediaResource::setAudioBitRate ( int rate )

Sets the bit rate in bits per second of a media resource's video stream.

void QMediaResource::setAudioCodec ( const QString & codec )

Sets the audio codec of a media resource.

void QMediaResource::setChannelCount ( int channels )

Sets the number of audio channels in a media resource.

void QMediaResource::setDataSize ( const qint64 size )

Sets the size in bytes of a media resource.

void QMediaResource::setLanguage ( const QString & language )

Sets the language of a media resource.

void QMediaResource::setResolution ( const QSize & resolution )

Sets the resolution in pixels of a media resource.

void QMediaResource::setResolution	(	int	width,
		int	height
	)

Sets the width and height in pixels of a media resource.

void QMediaResource::setSampleRate ( int sampleRate )

Sets the audio sampleRate of a media resource.

void QMediaResource::setVideoBitRate ( int rate )

Sets the bit rate in bits per second of a media resource's video stream.

void QMediaResource::setVideoCodec ( const QString & codec )

Sets the video codec of media resource.

QUrl QMediaResource::url ( ) const

Returns the URL of a media resource.

int QMediaResource::videoBitRate ( ) const

Returns the bit rate in bits per second of a media resource's video stream. This may be zero if the bit rate is unknown, or the resource contains no video stream.

QString QMediaResource::videoCodec ( ) const

Returns the video codec of a media resource. This may be null if the media resource does not contain a video stream, or the codec is unknown.

Friends And Related Function Documentation

QMediaResourceList ( )

Compares a media resource to other. Returns true if they are different, and false otherwise.

Synonym for QList<QMediaResource>

Public Methods

Related Functions

Detailed Description

Constructor & Destructor Documentation

Method Documentation

Friends And Related Function Documentation