QRadioTuner ¶

QRadioTuner class provides an interface to the systems analog radio device. 更多 …

概要 ¶

函数 ¶

def band ()
def error ()
def errorString ()
def frequency ()
def frequencyRange (band)
def frequencyStep (band)
def isAntennaConnected ()
def isBandSupported (b)
def isMuted ()
def isSearching ()
def isStereo ()
def radioData ()
def setStereoMode (mode)
def signalStrength ()
def state ()
def stereoMode ()
def volume ()

槽 ¶

def cancelSearch ()
def searchAllStations ([searchMode=QRadioTuner.SearchFast])
def searchBackward ()
def searchForward ()
def setBand (band)
def setFrequency (frequency)
def setMuted (muted)
def setVolume (volume)
def start ()
def stop ()

信号 ¶

def antennaConnectedChanged (connectionStatus)
def bandChanged (band)
def error (error)
def frequencyChanged (frequency)
def mutedChanged (muted)
def searchingChanged (searching)
def signalStrengthChanged (signalStrength)
def stateChanged (state)
def stationFound (frequency, stationId)
def stereoStatusChanged (stereo)
def volumeChanged (volume)

详细描述 ¶

You can control the systems analog radio device using this interface, for example:
radio = new QRadioTuner;
connect(radio, SIGNAL(frequencyChanged(int)), this, SLOT(freqChanged(int)));
if (radio->isBandSupported(QRadioTuner::FM)) {
    radio->setBand(QRadioTuner::FM);
    radio->setFrequency(yourRadioStationFrequency);
    radio->setVolume(100);
    radio->start();
}
											
The radio object will emit signals for any changes in state such as: bandChanged() , frequencyChanged() , stereoStatusChanged() , searchingChanged() , signalStrengthChanged() , volumeChanged() , mutedChanged() .

You can change between the frequency bands using setBand() however it is recommended that you check to make sure the band is available first using isBandSupported() .

另请参阅

QRadioData 无线电概述

class QRadioTuner ( [ parent=None ] ) ¶

param parent

QObject

Constructs a radio tuner based on a media service allocated by the default media service provider.

parent 会被传递给 QMediaObject .

PySide2.QtMultimedia.QRadioTuner. State ¶

Enumerates radio tuner states.

常量	描述
QRadioTuner.ActiveState	The tuner is started and active.
QRadioTuner.StoppedState	The tuner device is stopped.

PySide2.QtMultimedia.QRadioTuner. Band ¶

Enumerates radio frequency bands.

常量	描述
QRadioTuner.AM	520 to 1610 kHz, 9 or 10kHz channel spacing, extended 1610 to 1710 kHz
QRadioTuner.FM	87.5 to 108.0 MHz, except Japan 76-90 MHz
QRadioTuner.SW	1.711 to 30.0 MHz, divided into 15 bands. 5kHz channel spacing
QRadioTuner.LW	148.5 to 283.5 kHz, 9kHz channel spacing (Europe, Africa, Asia)
QRadioTuner.FM2	range not defined, used when area supports more than one FM range.

PySide2.QtMultimedia.QRadioTuner. Error ¶

Enumerates radio tuner error conditions.

常量	描述
QRadioTuner.NoError	没有发生错误。
QRadioTuner.ResourceError	There is no radio service available.
QRadioTuner.OpenError	Unable to open radio device.
QRadioTuner.OutOfRangeError	An attempt to set a frequency or band that is not supported by radio device.

PySide2.QtMultimedia.QRadioTuner. StereoMode ¶

Enumerates radio tuner policy for receiving stereo signals.

常量	描述
QRadioTuner.ForceStereo	Provide stereo mode, converting if required.
QRadioTuner.ForceMono	Provide mono mode, converting if required.
QRadioTuner.Auto	Uses the stereo mode matching the station.

PySide2.QtMultimedia.QRadioTuner. SearchMode ¶

Enumerates how the radio tuner should search for stations.

常量	描述
QRadioTuner.SearchFast	Use only signal strength when searching.
QRadioTuner.SearchGetStationId	After finding a strong signal, wait for the RDS station id (PI) before continuing.

PySide2.QtMultimedia.QRadioTuner. antennaConnectedChanged ( connectionStatus ) ¶

参数: connectionStatus – bool

PySide2.QtMultimedia.QRadioTuner. band ( ) ¶

返回类型: Band

另请参阅

setBand()

PySide2.QtMultimedia.QRadioTuner. bandChanged ( band ) ¶

参数: band – Band

PySide2.QtMultimedia.QRadioTuner. cancelSearch ( ) ¶: Stops scanning for a signal.

另请参阅

searchForward() searchBackward() searching

PySide2.QtMultimedia.QRadioTuner. error ( ) ¶

返回类型: Error

Returns the error state of a radio tuner.

另请参阅

errorString()

PySide2.QtMultimedia.QRadioTuner. error ( error ) ¶

参数: error – Error

PySide2.QtMultimedia.QRadioTuner. errorString ( ) ¶

返回类型: unicode

Returns a description of a radio tuner’s error state.

另请参阅

error()

PySide2.QtMultimedia.QRadioTuner. frequency ( ) ¶

返回类型: int

另请参阅

setFrequency()

PySide2.QtMultimedia.QRadioTuner. frequencyChanged ( frequency ) ¶

参数: frequency – int

PySide2.QtMultimedia.QRadioTuner. frequencyRange ( band ) ¶

参数: band – Band
返回类型

Returns a frequency band ‘s minimum and maximum frequency.

PySide2.QtMultimedia.QRadioTuner. frequencyStep ( band ) ¶

参数: band – Band
返回类型: int

Returns the number of Hertz to increment the frequency by when stepping through frequencies within a given band .

PySide2.QtMultimedia.QRadioTuner. isAntennaConnected ( ) ¶

返回类型: bool

PySide2.QtMultimedia.QRadioTuner. isBandSupported ( b ) ¶

参数: b – Band
返回类型: bool

Identifies if a frequency band is supported by a radio tuner.

Returns true if the band is supported, and false if it is not.

PySide2.QtMultimedia.QRadioTuner. isMuted ( ) ¶

返回类型: bool

PySide2.QtMultimedia.QRadioTuner. isSearching ( ) ¶

返回类型: bool

PySide2.QtMultimedia.QRadioTuner. isStereo ( ) ¶

返回类型: bool

PySide2.QtMultimedia.QRadioTuner. mutedChanged ( muted ) ¶

参数: muted – bool

PySide2.QtMultimedia.QRadioTuner. radioData ( ) ¶

返回类型: QRadioData

PySide2.QtMultimedia.QRadioTuner. searchAllStations ( [ searchMode=QRadioTuner.SearchFast ] ) ¶

参数: searchMode – SearchMode

Search all stations in current band

Emits stationFound (int, QString ) for every found station. After searching is completed, searchingChanged (bool) is emitted (false). If searchMode is set to SearchGetStationId , searching waits for station id (PI) on each frequency.

另请参阅

searchForward() searchBackward() searching

PySide2.QtMultimedia.QRadioTuner. searchBackward ( ) ¶: Starts a backwards scan for a signal, starting from the current frequency .

另请参阅

searchForward() cancelSearch() searching

PySide2.QtMultimedia.QRadioTuner. searchForward ( ) ¶: Starts a forward scan for a signal, starting from the current frequency .

另请参阅

searchBackward() cancelSearch() searching

PySide2.QtMultimedia.QRadioTuner. searchingChanged ( searching ) ¶

参数: searching – bool

PySide2.QtMultimedia.QRadioTuner. setBand ( band ) ¶

参数: band – Band

Sets a radio tuner’s frequency band .

Changing the band will reset the frequency to the new band’s minimum frequency.

另请参阅

band()

PySide2.QtMultimedia.QRadioTuner. setFrequency ( frequency ) ¶

参数: frequency – int

Sets a radio tuner’s frequency .

If the tuner is set to a frequency outside the current band , the band will be changed to one occupied by the new frequency.

另请参阅

frequency()

PySide2.QtMultimedia.QRadioTuner. setMuted ( muted ) ¶

参数: muted – bool

另请参阅

isMuted()

PySide2.QtMultimedia.QRadioTuner. setStereoMode ( mode ) ¶

参数: mode – StereoMode

另请参阅

stereoMode()

PySide2.QtMultimedia.QRadioTuner. setVolume ( volume ) ¶

参数: volume – int

另请参阅

volume()

PySide2.QtMultimedia.QRadioTuner. signalStrength ( ) ¶

返回类型: int

PySide2.QtMultimedia.QRadioTuner. signalStrengthChanged ( signalStrength ) ¶

参数: signalStrength – int

PySide2.QtMultimedia.QRadioTuner. start ( ) ¶: Activate the radio device.

PySide2.QtMultimedia.QRadioTuner. state ( ) ¶

返回类型: State

PySide2.QtMultimedia.QRadioTuner. stateChanged ( state ) ¶

参数: state – State

PySide2.QtMultimedia.QRadioTuner. stationFound ( frequency , stationId ) ¶

参数

frequency – int
stationId – unicode

PySide2.QtMultimedia.QRadioTuner. stereoMode ( ) ¶

返回类型: StereoMode

另请参阅

setStereoMode()

PySide2.QtMultimedia.QRadioTuner. stereoStatusChanged ( stereo ) ¶

参数: stereo – bool

PySide2.QtMultimedia.QRadioTuner. stop ( ) ¶: Deactivate the radio device.

PySide2.QtMultimedia.QRadioTuner. volume ( ) ¶

返回类型: int

另请参阅

setVolume()

PySide2.QtMultimedia.QRadioTuner. volumeChanged ( volume ) ¶

参数: volume – int

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QRadioTuner ¶

概要 ¶

函数 ¶

槽 ¶

信号 ¶

详细描述 ¶