36 lines
950 B
Python
36 lines
950 B
Python
# encoding: utf-8
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"""MediaPart and related objects."""
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from __future__ import absolute_import, division, print_function, unicode_literals
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import hashlib
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from ..opc.package import Part
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from ..util import lazyproperty
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class MediaPart(Part):
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"""A media part, containing an audio or video resource.
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A media part generally has a partname matching the regex
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``ppt/media/media[1-9][0-9]*.*``.
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"""
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@classmethod
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def new(cls, package, media):
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"""Return new |MediaPart| instance containing *media*.
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*media* must be a |Media| object.
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"""
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partname = package.next_media_partname(media.ext)
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return cls(partname, media.content_type, media.blob, package)
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@lazyproperty
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def sha1(self):
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"""The SHA1 hash digest for the media binary of this media part.
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Example: `'1be010ea47803b00e140b852765cdf84f491da47'`
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"""
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return hashlib.sha1(self._blob).hexdigest()
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