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In-progress flake8 fixes

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This commit is contained in:
Jamie Hardt
2023-11-08 20:43:56 -08:00
parent f978927648
commit 5b1e4ab631
12 changed files with 485 additions and 483 deletions
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77
wavinfo/wave_bext_reader.py
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@@ -3,74 +3,75 @@ import struct
from typing import Optional
class WavBextReader:
def __init__(self, bext_data, encoding):
"""
Read Broadcast-WAV extended metadata.
:param bext_data: The bytes-like data.
:param encoding: The encoding to use when decoding the text fields of
the BEXT metadata scope. According to EBU Rec 3285 this shall be
:param encoding: The encoding to use when decoding the text fields of
the BEXT metadata scope. According to EBU Rec 3285 this shall be
ASCII.
"""
packstring = "<256s" + "32s" + "32s" + "10s" + "8s" + "QH" + "64s" + \
"hhhhh" + "180s"
"hhhhh" + "180s"
rest_starts = struct.calcsize(packstring)
unpacked = struct.unpack(packstring, bext_data[:rest_starts])
def sanitize_bytes(b : bytes) -> str:
def sanitize_bytes(b: bytes) -> str:
# honestly can't remember why I'm stripping nulls this way
first_null = next((index for index, byte in enumerate(b) \
if byte == 0), None)
first_null = next((index for index, byte in enumerate(b)
if byte == 0), None)
trimmed = b if first_null is None else b[:first_null]
decoded = trimmed.decode(encoding)
return decoded
#: Description. A free-text field up to 256 characters long.
self.description : str = sanitize_bytes(unpacked[0])
self.description: str = sanitize_bytes(unpacked[0])
#: Originator. Usually the name of the encoding application, sometimes
#: an artist name.
self.originator : str = sanitize_bytes(unpacked[1])
self.originator: str = sanitize_bytes(unpacked[1])
#: A unique identifier for the file, a serial number.
self.originator_ref : str = sanitize_bytes(unpacked[2])
self.originator_ref: str = sanitize_bytes(unpacked[2])
#: Date of the recording, in the format YYYY-MM-DD.
self.originator_date : str = sanitize_bytes(unpacked[3])
self.originator_date: str = sanitize_bytes(unpacked[3])
#: Time of the recording, in the format HH:MM:SS.
self.originator_time : str = sanitize_bytes(unpacked[4])
#: The sample offset of the start, usually relative
#: to midnight.
self.time_reference : int = unpacked[5]
self.originator_time: str = sanitize_bytes(unpacked[4])
#: The sample offset of the start, usually relative
#: to midnight.
self.time_reference: int = unpacked[5]
#: A variable-length text field containing a list of processes and
#: and conversions performed on the file.
self.coding_history : str = sanitize_bytes(bext_data[rest_starts:])
#: BEXT version.
self.version : int = unpacked[6]
#: SMPTE 330M UMID of this audio file, 64 bytes are allocated though
self.coding_history: str = sanitize_bytes(bext_data[rest_starts:])
#: BEXT version.
self.version: int = unpacked[6]
#: SMPTE 330M UMID of this audio file, 64 bytes are allocated though
#: the UMID may only be 32 bytes long.
self.umid : Optional[bytes] = None
self.umid: Optional[bytes] = None
#: EBU R128 Integrated loudness, in LUFS.
self.loudness_value : Optional[float] = None
self.loudness_value: Optional[float] = None
#: EBU R128 Loudness range, in LUFS.
self.loudness_range : Optional[float] = None
self.loudness_range: Optional[float] = None
#: True peak level, in dBFS TP
self.max_true_peak : Optional[float] = None
self.max_true_peak: Optional[float] = None
#: EBU R128 Maximum momentary loudness, in LUFS
self.max_momentary_loudness : Optional[float] = None
self.max_momentary_loudness: Optional[float] = None
#: EBU R128 Maximum short-term loudness, in LUFS.
self.max_shortterm_loudness : Optional[float] = None
self.max_shortterm_loudness: Optional[float] = None
if self.version > 0:
self.umid = unpacked[7]
@@ -87,7 +88,7 @@ class WavBextReader:
# umid_parsed = UMIDParser(self.umid)
# umid_str = umid_parsed.basic_umid_to_str()
# else:
umid_str = None
return {'description': self.description,