ffmpeg-python/ffmpeg/_utils.py at extra-examples2 · GamemakerY/ffmpeg-python · GitHub

43 lines (34 loc) · 1.24 KB

from __future__ import unicode_literals

from builtins import str

from past.builtins import basestring

import hashlib

def _recursive_repr(item):

"""Hack around python `repr` to deterministically represent dictionaries.

This is able to represent more things than json.dumps, since it does not require things to be JSON serializable

(e.g. datetimes).

"""

if isinstance(item, basestring):

result = str(item)

elif isinstance(item, list):

result = '[{}]'.format(', '.join([_recursive_repr(x) for x in item]))

elif isinstance(item, dict):

kv_pairs = ['{}: {}'.format(_recursive_repr(k), _recursive_repr(item[k])) for k in sorted(item)]

result = '{' + ', '.join(kv_pairs) + '}'

else:

result = repr(item)

return result

def get_hash(item):

repr_ = _recursive_repr(item).encode('utf-8')

return hashlib.md5(repr_).hexdigest()

def get_hash_int(item):

return int(get_hash(item), base=16)

def escape_chars(text, chars):

"""Helper function to escape uncomfortable characters."""

text = str(text)

chars = list(set(chars))

if '\\' in chars:

chars.remove('\\')

chars.insert(0, '\\')

for ch in chars:

text = text.replace(ch, '\\' + ch)

return text

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