import soundfile as sf
import sys
import os
import numpy as np
audio_subtype = os.environ.get('AUDIO_SUBTYPE', 'VORBIS')
audio_format = 'OGG'
channel_cnt = 2
sample_rate = 44100

dtype = os.environ.get('DTYPE','float64')
sample_cnt = int(os.environ.get('SAMPLE_CNT', '11235535'))

if len(sys.argv) == 2:
  with sf.SoundFile(sys.argv[1]) as audioin:
    channels = audioin.read(dtype=dtype, always_2d=True)
    print("read %d samples" % (len(channels),))
else:
  channels = np.ndarray((sample_cnt, channel_cnt), dtype=dtype)


with sf.SoundFile('crash.ogg', mode='w', samplerate=sample_rate, channels=channel_cnt, subtype=audio_subtype, format=audio_format) as audioout:
  audioout.write(channels)