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UMID Implementation

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Jamie Hardt
2020-01-06 08:27:34 -08:00
parent 1b9547e8c2
commit 5a30ce3afc
4 changed files with 185 additions and 203 deletions
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81
wavinfo/wave_info_reader.py
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@@ -1,6 +1,6 @@
from .riff_parser import parse_chunk, ListChunkDescriptor
class WavInfoChunkReader:
def __init__(self, f, encoding):
@@ -9,53 +9,48 @@ class WavInfoChunkReader:
f.seek(0)
parsed_chunks = parse_chunk(f)
list_chunks = [chunk for chunk in parsed_chunks.children \
if type(chunk) is ListChunkDescriptor]
list_chunks = [chunk for chunk in parsed_chunks.children if type(chunk) is ListChunkDescriptor]
self.info_chunk = next((chunk for chunk in list_chunks if chunk.signature == b'INFO'), None)
self.info_chunk = next((chunk for chunk in list_chunks \
if chunk.signature == b'INFO'), None)
#: 'ICOP' Copyright
self.copyright = self._get_field(f,b'ICOP')
self.copyright = self._get_field(f, b'ICOP')
#: 'IPRD' Product
self.product = self._get_field(f,b'IPRD')
self.product = self._get_field(f, b'IPRD')
#: 'IGNR' Genre
self.genre = self._get_field(f,b'IGNR')
self.genre = self._get_field(f, b'IGNR')
#: 'ISBJ' Supject
self.subject = self._get_field(f,b'ISBJ')
self.subject = self._get_field(f, b'ISBJ')
#: 'IART' Artist, composer, author
self.artist = self._get_field(f,b'IART')
self.artist = self._get_field(f, b'IART')
#: 'ICMT' Comment
self.comment = self._get_field(f,b'ICMT')
self.comment = self._get_field(f, b'ICMT')
#: 'ISFT' Software, encoding application
self.software = self._get_field(f,b'ISFT')
self.software = self._get_field(f, b'ISFT')
#: 'ICRD' Created date
self.created_date = self._get_field(f,b'ICRD')
self.created_date = self._get_field(f, b'ICRD')
#: 'IENG' Engineer
self.engineer = self._get_field(f,b'IENG')
self.engineer = self._get_field(f, b'IENG')
#: 'ITCH' Technician
self.technician = self._get_field(f,b'ITCH')
self.technician = self._get_field(f, b'ITCH')
#: 'IKEY' Keywords, keyword list
self.keywords = self._get_field(f,b'IKEY')
self.keywords = self._get_field(f, b'IKEY')
#: 'INAM' Name, title
self.title = self._get_field(f,b'INAM')
self.title = self._get_field(f, b'INAM')
#: 'ISRC' Source
self.source = self._get_field(f,b'ISRC')
self.source = self._get_field(f, b'ISRC')
#: 'TAPE' Tape
self.tape = self._get_field(f,b'TAPE')
self.tape = self._get_field(f, b'TAPE')
#: 'IARL' Archival Location
self.archival_location = self._get_field(f,b'IARL')
self.archival_location = self._get_field(f, b'IARL')
#: 'ISFT' Software
self.software = self._get_field(f,b'ISFT')
self.software = self._get_field(f, b'ISFT')
#: 'ICSM' Commissioned
self.commissioned = self._get_field(f,b'ICMS')
self.commissioned = self._get_field(f, b'ICMS')
def _get_field(self, f, field_ident):
search = next( ( (chunk.start, chunk.length) for chunk in self.info_chunk.children \
if chunk.ident == field_ident ), None)
search = next(((chunk.start, chunk.length) for chunk in self.info_chunk.children if chunk.ident == field_ident),
None)
if search is not None:
f.seek(search[0])
@@ -64,32 +59,24 @@ class WavInfoChunkReader:
else:
return None
def to_dict(self):
"""
A dictionary with all of the key/values read from the INFO scope.
"""
return {'copyright': self.copyright,
'product': self.product,
'genre': self.genre,
'artist': self.artist,
'comment': self.comment,
return {'copyright': self.copyright,
'product': self.product,
'genre': self.genre,
'artist': self.artist,
'comment': self.comment,
'software': self.software,
'created_date': self.created_date,
'engineer': self.engineer,
'keywords': self.keywords,
'title': self.title,
'source': self.source,
'tape': self.tape,
'title': self.title,
'source': self.source,
'tape': self.tape,
'commissioned': self.commissioned,
'software': self.software,
'archival_location':self.archival_location,
'subject': self.subject,
'technician':self.technician
'archival_location': self.archival_location,
'subject': self.subject,
'technician': self.technician
}