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# This file is part of audioread.
# Copyright 2011, Adrian Sampson.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
"""Command-line tool to decode audio files to WAV files."""
import audioread
import sys
import os
import wave
import contextlib
def decode(filename):
filename = os.path.abspath(os.path.expanduser(filename))
if not os.path.exists(filename):
print("File not found.", file=sys.stderr)
sys.exit(1)
try:
with audioread.audio_open(filename) as f:
print('Input file: %i channels at %i Hz; %.1f seconds.' %
(f.channels, f.samplerate, f.duration),
file=sys.stderr)
print('Backend:', str(type(f).__module__).split('.')[1],
file=sys.stderr)
with contextlib.closing(wave.open(filename + '.wav', 'w')) as of:
of.setnchannels(f.channels)
of.setframerate(f.samplerate)
of.setsampwidth(2)
for buf in f:
of.writeframes(buf)
except audioread.DecodeError:
print("File could not be decoded.", file=sys.stderr)
sys.exit(1)
if __name__ == '__main__':
decode(sys.argv[1])
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