b6fb7e8a86
Whipper is now fully PEP8 compliant. Revised version which includes all the changes suggested by Freso.
53 lines
1.2 KiB
Python
53 lines
1.2 KiB
Python
from subprocess import Popen, PIPE
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import logging
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logger = logging.getLogger(__name__)
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ARB = 'accuraterip-checksum'
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FLAC = 'flac'
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def accuraterip_checksum(f, track, tracks, wave=False, v2=False):
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v = '--accuraterip-v1'
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if v2:
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v = '--accuraterip-v2'
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track, tracks = str(track), str(tracks)
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if not wave:
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flac = Popen([FLAC, '-cds', f], stdout=PIPE)
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arc = Popen([ARB, v, '/dev/stdin', track, tracks],
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stdin=flac.stdout, stdout=PIPE, stderr=PIPE)
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else:
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arc = Popen([ARB, v, f, track, tracks],
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stdout=PIPE, stderr=PIPE)
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if not wave:
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flac.stdout.close()
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out, err = arc.communicate()
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if not wave:
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flac.wait()
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flac_rc = flac.returncode
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arc_rc = arc.returncode
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if not wave and flac_rc != 0:
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logger.warning('ARC calculation failed: flac return code is non zero')
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return None
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if arc_rc != 0:
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logger.warning('ARC calculation failed: arc return code is non zero')
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return None
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out = out.strip()
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try:
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outh = int('0x%s' % out, base=16)
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except ValueError:
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logger.warning('ARC output is not usable')
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return None
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return outh
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