128 lines
3.9 KiB
Python
128 lines
3.9 KiB
Python
import pyaudio
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import logging
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import audioop
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import wave
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import time
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import os
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import chunk
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from _struct import pack
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from array import array
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mainLogger = logging.getLogger("hugvey")
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logger = mainLogger.getChild("recorder")
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class Recorder:
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"""
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Record the streamed audio
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"""
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def __init__(self, hv_id, src_rate, out_folder, record_voice = True):
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self.logger = mainLogger.getChild(f"{hv_id}").getChild('recorder')
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if not os.path.exists(out_folder):
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raise Exception(f"Invalid output folder for recordings: {out_folder}")
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self.hv_id = hv_id
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self.src_rate = src_rate
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self.main_folder = out_folder # unfortunately not every device plays 16kHz audio streams
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self.running = False
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self.record_voice = record_voice
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self.data = array('h')
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self.currentLog = []
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def start(self):
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self.subsequentMutedFrames = 0
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self.fragmentNr = 0
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self.data = array('h')
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self.currentTranscription = ""
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self.currentLog = []
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day = time.strftime("%Y%m%d")
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t = time.strftime("%H:%M:%S")
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self.out_folder = os.path.join(self.main_folder, day, f"{self.hv_id}", t)
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if not os.path.exists(self.out_folder):
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self.logger.debug(f"Create directory {self.out_folder}")
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self.target_folder = os.makedirs(self.out_folder, exist_ok=True)
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self.running = True
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def writeData(self):
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if self.record_voice:
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if len(self.data) < 1:
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self.logger.info("Skip empty wave creation")
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else:
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self.fragmentNr += 1
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fn = os.path.join(self.out_folder, f"{self.fragmentNr}.wav")
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self.logger.info(f"Write wave: {fn}")
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self.wf = wave.open(fn, 'wb')
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self.wf.setnchannels(1)
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self.wf.setsampwidth(2)
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self.wf.setframerate(self.src_rate)
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# adapted from https://stackoverflow.com/questions/892199/detect-record-audio-in-python#6743593
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self.wf.writeframes(pack('<' + ('h'*len(self.data)), *self.data))
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self.wf.close()
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with open(os.path.join(self.out_folder, "transcriptions.txt"), "a") as fp:
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fp.write(f"{self.fragmentNr}\t{self.currentTranscription}\n")
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self.log('-',self.currentTranscription)
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self.data = array('h')
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self.currentTranscription = ""
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def receive(self, chunk):
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if not self.running:
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return
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# self.logger.debug('receive {}'.format(len(chunk)))
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if audioop.max(chunk, 2) == 0:
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# mic is muted on client side.
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self.subsequentMutedFrames += 1
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#self.logger.debug(f"Empty frame {self.subsequentMutedFrames}")
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if self.subsequentMutedFrames == 4:
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# self.createWave()
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self.writeData()
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if self.subsequentMutedFrames > 4:
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# Don't write more muted frames to the audio file.
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return
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else:
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self.subsequentMutedFrames = 0
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if not self.record_voice:
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# we only check this here, as the writeData above is used to write
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# transcriptions to the log.
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return
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d = array('h', chunk)
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self.data.extend(d)
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# self.wf.writeframes(chunk)
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def shutdown(self):
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self.writeData()
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self.running = False
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# self.wf.close()
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def triggerStart(self):
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self.start()
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def updateTranscription(self, text):
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self.currentTranscription = text
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def log(self, origin, msg, extra=None):
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self.currentLog.append({'time':time.time(), 'origin': origin, 'msg': msg, 'extra': extra})
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with open(os.path.join(self.out_folder, "log.txt"), "a") as fp:
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extratxt = "" if not extra else f"({extra})"
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fp.write(f"{origin}: {extratxt} {msg}\n")
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def __del__(self):
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self.logger.warn("Destroyed recorder object")
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