CopperSpice API
1.9.2
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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 |
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().
QMediaResource::QMediaResource | ( | ) |
Constructs a null media resource.
Constructs a media resource with the given mimeType from a url.
QMediaResource::QMediaResource | ( | const QNetworkRequest & | request, |
const QString & | mimeType = QString() |
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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.
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 | ||
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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.