class VoIPAlsaOutgoingCall(VoIPOutgoingCall):
def __init__(self, *args, **kwargs):
super(VoIPAlsaOutgoingCall, self).__init__(*args, **kwargs)
self.playback_device = None
self.capture_device = None
self.ctrl.set_send_audio_frame_callback(self._read_frame)
self.ctrl.set_recv_audio_frame_callback(self._write_frame)
def build_capture_device(self):
self.capture_device = PCM(PCM_CAPTURE, PCM_NONBLOCK)
self.capture_device.setrate(48000)
self.capture_device.setperiodsize(960)
self.capture_device.setchannels(1)
def build_playback_device(self):
self.playback_device = PCM(mode=PCM_NONBLOCK)
self.playback_device.setrate(48000)
self.playback_device.setperiodsize(960)
self.playback_device.setchannels(1)
def _read_frame(self, length: int):
if not self.capture_device:
self.build_capture_device()
_, frame = self.capture_device.read()
return frame
def _write_frame(self, frame: bytes):
if not self.playback_device:
self.build_playback_device()
self.playback_device.write(frame)
class AudioCapture(object):
def __init__(self):
os = system()
if os == 'Windows':
self.usuario = environ['USERNAME']
else:
self.usuario = environ['USER']
try:
self.capturarAudio()
self.guardarAudio()
except Exception as e:
print e
def capturarAudio(self):
self.captura = PCM(PCM_CAPTURE)
self.captura.setchannels(1) # default 2
self.captura.setrate(44100) # default 44100
self.captura.setformat(PCM_FORMAT_S16_LE) # default PCM_FORMAT_S16_LE
self.captura.setperiodsize(1024) # default 32
def guardarAudio(self):
if not 'audio' in listdir('./'):
mkdir('audio')
tiempo = strftime("%d %b %Y_%H:%M:%S", gmtime())
miAudio = './audio/' + self.usuario + '_' + tiempo + '.wav'
audio = wave.open(miAudio, 'w')
audio.setnchannels(1)
audio.setsampwidth(2)
audio.setframerate(44100)
while True:
try:
length, data = self.captura.read()
audio.writeframes(data)
except KeyboardInterrupt:
break
