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"""PyAudio Example: Play a wave file."""
import wave
import sys
import pyaudio
CHUNK = 1024
if len(sys.argv) < 2:
print(f'Plays a wave file. Usage: {sys.argv[0]} filename.wav')
sys.exit(-1)
with wave.open(sys.argv[1], 'rb') as wf:
# Instantiate PyAudio and initialize PortAudio system resources (1)
p = pyaudio.PyAudio()
# Open stream (2)
stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),
channels=wf.getnchannels(),
rate=wf.getframerate(),
output=True)
# Play samples from the wave file (3)
while len(data := wf.readframes(CHUNK)): # Requires Python 3.8+ for :=
stream.write(data)
# Close stream (4)
stream.close()
# Release PortAudio system resources (5)
p.terminate()
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