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Some line cleanup, starting cue impl

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This commit is contained in:
Jamie Hardt
2023-11-05 19:55:38 -08:00
parent 4384d8f575
commit 0792388871
1 changed files with 13 additions and 4 deletions
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17
wavinfo/wave_reader.py
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@@ -152,7 +152,8 @@ class WavInfoReader:
)
def _get_info(self, f, encoding):
finder = (chunk.signature for chunk in self.main_list if type(chunk) is ListChunkDescriptor)
finder = (chunk.signature for chunk in self.main_list \
if type(chunk) is ListChunkDescriptor)
if b'INFO' in finder:
return WavInfoChunkReader(f, encoding)
@@ -164,23 +165,31 @@ class WavInfoReader:
def _get_adm(self, f):
axml = self._find_chunk_data(b'axml', f, default_none=True)
chna = self._find_chunk_data(b'chna', f, default_none=True)
return WavADMReader(axml_data=axml, chna_data=chna) if axml and chna else None
return WavADMReader(axml_data=axml, chna_data=chna) \
if axml and chna else None
def _get_dbmd(self, f):
dbmd_data = self._find_chunk_data(b'dbmd', f, default_none=True)
return WavDolbyMetadataReader(dbmd_data=dbmd_data) if dbmd_data else None
return WavDolbyMetadataReader(dbmd_data=dbmd_data) \
if dbmd_data else None
def _get_ixml(self, f):
ixml_data = self._find_chunk_data(b'iXML', f, default_none=True)
return WavIXMLFormat(ixml_data.rstrip(b'\0')) if ixml_data else None
def _get_cue(self, f):
cue = self._find_chunk_data(b'cue ', f, default_none=True)
labl = self._find_chunk_data(b'labl', f, default_none=True)
ltxt = self._find_chunk_data(b'ltxt', f, default_none=True)
assert False, "cue metadata implementation in progress"
def walk(self) -> Generator[str,str,Any]: #FIXME: this should probably be named "iter()"
"""
Walk all of the available metadata fields.
:yields: tuples of the *scope*, *key*, and *value* of
each metadatum. The *scope* value will be one of
"fmt", "data", "ixml", "bext", "info", "dolby", or "adm".
"fmt", "data", "ixml", "bext", "info", "dolby", "cue" or "adm".
"""
scopes = ('fmt', 'data', 'ixml', 'bext', 'info', 'adm', 'dolby')