micmon/micmon/audio/player.py

35 lines
1.0 KiB
Python

import subprocess
from typing import Optional
from micmon.audio import AudioSegment
class AudioPlayer:
def __init__(self, sample_rate: int = 44100, channels: int = 1, ffplay_bin: str = 'ffplay'):
self.sample_rate = sample_rate
self.channels = channels
self.ffplay_bin = ffplay_bin
self.process: Optional[subprocess.Popen] = None
def __enter__(self):
self.process = subprocess.Popen([
self.ffplay_bin, '-f', 's16le', '-ar', str(self.sample_rate),
'-ac', str(self.channels), '-nodisp', '-'
], stdin=subprocess.PIPE)
return self
def __exit__(self, exc_type, exc_val, exc_tb):
if self.process:
self.process.terminate()
self.process.wait(timeout=5)
if self.process.poll is None:
self.process.kill()
self.process.wait()
self.process = None
def play(self, audio: AudioSegment):
assert self.process, 'Player is not running'
self.process.stdin.write(audio.data)