def __init__(self):
super(AudioTest, self).__init__()
self.m_device = QAudioDeviceInfo.defaultOutputDevice()
self.m_output = None
self.initializeWindow()
self.initializeAudio()
def __init__(self):
super(AudioTest, self).__init__()
self.m_device = QAudioDeviceInfo.defaultOutputDevice()
self.m_output = None
self.initializeWindow()
self.initializeAudio()
def __init__(self, args=None):
AudioDriver.__init__(self, args)
if args and args.audio_device:
available_devices = {}
for device in QAudioDeviceInfo.availableDevices(
QAudio.AudioOutput):
available_devices[device.deviceName()] = device
try:
device = available_devices[args.audio_device]
except KeyError:
logger.error("Unknown audio device: %r", args.audio_device)
logger.info("Available devices:")
for device_name in available_devices:
logger.info(" %r", device_name)
raise AudioDriverError("Unsupported audio device")
else:
device = QAudioDeviceInfo.defaultOutputDevice()
playback_format = device.preferredFormat()
self.decoder = QAudioDecoder()
self.decoder.setAudioFormat(playback_format)
self.output = QAudioOutput(device, playback_format)
self.device_name = device.deviceName()
self.duration = None
self.bytes_written = 0
self.last_frame = b""
self.starting = False
self.output_dev = None
self.current_file = None
self.current_buffer = None
self.current_buffer_pos = 0
self.output.stateChanged.connect(self.output_state_changed)
self.output.notify.connect(self.tick)
self.decoder.error.connect(self.decoder_error)
self.decoder.finished.connect(self.decoder_finished)
self.decoder.stateChanged.connect(self.decoder_state_changed)
self.decoder.positionChanged.connect(self.decoder_pos_changed)
self.decoder.bufferReady.connect(self.buffer_ready)
def initializeAudio(self):
self.m_pullTimer = QTimer(self)
self.m_pullTimer.timeout.connect(self.pullTimerExpired)
self.m_pullMode = True
self.m_format = QAudioFormat()
self.m_format.setSampleRate(self.DataSampleRateHz)
self.m_format.setChannelCount(1)
self.m_format.setSampleSize(16)
self.m_format.setCodec('audio/pcm')
self.m_format.setByteOrder(QAudioFormat.LittleEndian)
self.m_format.setSampleType(QAudioFormat.SignedInt)
info = QAudioDeviceInfo(QAudioDeviceInfo.defaultOutputDevice())
if not info.isFormatSupported(self.m_format):
qWarning("Default format not supported - trying to use nearest")
self.m_format = info.nearestFormat(self.m_format)
self.m_generator = Generator(self.m_format,
self.DurationSeconds * 1000000, self.ToneSampleRateHz, self)
self.createAudioOutput()