def imageSettings(self):
settings = self.imagecapture.encodingSettings()
settings.setCodec(self.boxValue(self.ui.imageCodecBox))
settings.setQuality(
QMultimedia.EncodingQuality(self.ui.imageQualitySlider.value()))
settings.setResolution(self.boxValue(self.ui.imageResolutionBox))
return settings
def audioSettings(self):
settings = self.mediaRecorder.audioSettings()
settings.setCodec(self.boxValue(self.ui.audioCodecBox))
settings.setQuality(
QMultimedia.EncodingQuality(self.ui.audioQualitySlider.value()))
settings.setSampleRate(self.boxValue(self.ui.audioSampleRateBox))
return settings
def videoSettings(self):
settings = self.mediaRecorder.videoSettings()
settings.setCodec(self.boxValue(self.ui.videoCodecBox))
settings.setQuality(
QMultimedia.EncodingQuality(self.ui.videoQualitySlider.value()))
settings.setResolution(self.boxValue(self.ui.videoResolutionBox))
settings.setFrameRate(self.boxValue(self.ui.videoFramerateBox))
return settings
def __setRecordParams(self): ##设置音频输入参数
selectedFile = self.ui.editOutputFile.text().strip()
if (selectedFile == ""):
QMessageBox.critical(self, "错误", "请先设置录音输出文件")
return False
if os.path.exists(selectedFile):
os.remove(selectedFile) #删除已有文件
## QMessageBox.critical(self,"错误","录音输出文件被占用，无法删除")
## return False
recordFile = QUrl.fromLocalFile(selectedFile)
self.recorder.setOutputLocation(recordFile) #设置输出文件
recordDevice = self.ui.comboDevices.currentText()
self.recorder.setAudioInput(recordDevice) #设置录入设备
settings = QAudioEncoderSettings() #音频编码设置
settings.setCodec(self.ui.comboCodec.currentText()) #编码
sampRate = int(self.ui.comboSampleRate.currentText())
settings.setSampleRate(sampRate) #采样率
bitRate = int(self.ui.comboBitrate.currentText())
settings.setBitRate(bitRate) #比特率
channelCount = int(self.ui.comboChannels.currentText())
settings.setChannelCount(channelCount) #通道数
## quality=self.ui.sliderQuality.value() #也可以
quality = QMultimedia.EncodingQuality(self.ui.sliderQuality.value())
settings.setQuality(quality) #品质
if self.ui.radioQuality.isChecked(): #编码模式为固定品质,自动决定采样率，采样点大小
settings.setEncodingMode(QMultimedia.ConstantQualityEncoding)
else:
settings.setEncodingMode(
QMultimedia.ConstantBitRateEncoding) #固定比特率
self.recorder.setAudioSettings(settings) #音频设置
return True
