Member Function Documentation
QAudioDecoderControl::QAudioDecoderControl(QObject * parent = 0) [protected]
Constructs a new audio decoder control with the given parent.
QAudioDecoderControl::~QAudioDecoderControl()
Destroys an audio decoder control.
QAudioFormat QAudioDecoderControl::audioFormat() const [pure virtual]
Returns the current audio format of the decoded stream.
Any buffers returned should have this format.
See also setAudioFormat() and formatChanged().
bool QAudioDecoderControl::bufferAvailable() const [pure virtual]
Returns true if a buffer is available to be read, and false otherwise. If there is no buffer available, calling the read() function may block until a buffer is available or the end of the media is reached
void QAudioDecoderControl::bufferAvailableChanged(bool available) [signal]
Signals that the bufferAvailable property has changed to available.
void QAudioDecoderControl::bufferReady() [signal]
Signals that a new buffer is ready for reading.
qint64 QAudioDecoderControl::duration() const [pure virtual]
Returns total duration (in milliseconds) of the audio stream or -1 if not available.
void QAudioDecoderControl::durationChanged(qint64 duration) [signal]
Signals that the estimated duration of the decoded data has changed.
See also positionChanged().
void QAudioDecoderControl::error(int error, const QString & errorString) [signal]
Signals that an error has occurred. The errorString provides a more detailed explanation.
void QAudioDecoderControl::finished() [signal]
Signals that the decoding has finished successfully. If decoding fails, error signal is emitted instead.
See also start(), stop(), and error().
void QAudioDecoderControl::formatChanged(const QAudioFormat & format) [signal]
Signals that the current audio format of the decoder has changed to format.
See also audioFormat() and setAudioFormat().
qint64 QAudioDecoderControl::position() const [pure virtual]
Returns position (in milliseconds) of the last buffer read from the decoder or -1 if no buffers have been read.
void QAudioDecoderControl::positionChanged(qint64 position) [signal]
Signals that the current position of the decoder has changed.
See also durationChanged().
QAudioBuffer QAudioDecoderControl::read() [pure virtual]
Read a buffer from the decoder. Returns invalid buffer on failure.
void QAudioDecoderControl::setAudioFormat(const QAudioFormat & format) [pure virtual]
Set the desired audio format for decoded samples to format.
If the decoder does not support this format, error() will be set to FormatError.
If you do not specify a format, the format of the decoded audio itself will be used. Otherwise, some format conversion will be applied.
If you wish to reset the decoded format to that of the original audio file, you can specify an invalid format.
See also audioFormat().
void QAudioDecoderControl::setSourceDevice(QIODevice * device) [pure virtual]
Sets the current source to device. Changing the source will stop any current decoding and discard any buffers.
Sources are exclusive, so only one can be set.
See also sourceDevice().
void QAudioDecoderControl::setSourceFilename(const QString & fileName) [pure virtual]
Sets the current source to fileName. Changing the source will stop any current decoding and discard any buffers.
Sources are exclusive, so only one can be set.
See also sourceFilename().
void QAudioDecoderControl::sourceChanged() [signal]
Signals that the current source of the decoder has changed.
See also sourceFilename() and sourceDevice().
QIODevice * QAudioDecoderControl::sourceDevice() const [pure virtual]
Returns the current media source QIODevice, or 0 if none (or a file).
See also setSourceDevice().
QString QAudioDecoderControl::sourceFilename() const [pure virtual]
Returns the current media source filename, or a null QString if none (or a device)
See also setSourceFilename().
void QAudioDecoderControl::start() [pure virtual]
Starts decoding the current media.
If successful the player control will immediately enter the decoding state.
See also state() and read().
QAudioDecoder::State QAudioDecoderControl::state() const [pure virtual]
Returns the state of a player control.
void QAudioDecoderControl::stateChanged(QAudioDecoder::State state) [signal]
Signals that the state of a player control has changed.
See also state().
void QAudioDecoderControl::stop() [pure virtual]
Stops playback of the current media and discards any buffers.
If successful the player control will immediately enter the stopped state.
