[postprocessor/common] Improve postprocessor args fetching and clarify doc

This commit is contained in:
Sergey M․ 2015-07-11 22:41:33 +06:00
parent f72b0a6032
commit e35b23f54d

View file

@ -22,14 +22,15 @@ class PostProcessor(object):
of the chain is reached.
PostProcessor objects follow a "mutual registration" process similar
to InfoExtractor objects. And it can receive parameters from CLI trough
--postprocessor-args.
to InfoExtractor objects.
Optionally PostProcessor can use a list of additional command-line arguments
with self._configuration_args.
"""
_downloader = None
def __init__(self, downloader=None):
self._extra_cmd_args = downloader.params.get('postprocessor_args')
self._downloader = downloader
def set_downloader(self, downloader):
@ -59,6 +60,13 @@ class PostProcessor(object):
except Exception:
self._downloader.report_warning(errnote)
def _configuration_args(self, default=[]):
pp_args = self._downloader.params.get('postprocessor_args')
if pp_args is None:
return default
assert isinstance(pp_args, list)
return pp_args
class AudioConversionError(PostProcessingError):
pass