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PSSH: Rework from_playready_pssh as a class method

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rlaphoenix 2022-08-05 05:38:02 +01:00
parent 0537c9666c
commit 9d7eaf4949
1 changed files with 6 additions and 6 deletions
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12
pywidevine/pssh.py
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@ -179,14 +179,14 @@ class PSSH:
return cls(box) return cls(box)
@staticmethod @classmethod
def from_playready_pssh(box: Container) -> Container: def from_playready_pssh(cls, box: Container) -> PSSH:
""" """
Convert a PlayReady PSSH to a Widevine PSSH. Convert a PlayReady PSSH Box to a Widevine PSSH Box.
Note: The resulting Widevine PSSH will likely not be usable for Licensing. This Note: The resulting Widevine PSSH will likely not be usable for Licensing. This
is because there is some data for a Widevine CENC Header that is not going to be is because there is some data for a Widevine Cenc Header that is missing from a
listed in a PlayReady PSSH. PlayReady PSSH Box.
This converted PSSH will only be useful for it's Key IDs, so realistically only This converted PSSH will only be useful for it's Key IDs, so realistically only
for matching Key IDs with a Track. As a fallback. for matching Key IDs with a Track. As a fallback.
@ -211,7 +211,7 @@ class PSSH:
box.init_data = cenc_header.SerializeToString() box.init_data = cenc_header.SerializeToString()
box.system_ID = PSSH.SystemId.Widevine box.system_ID = PSSH.SystemId.Widevine
return box return cls(box)
@staticmethod @staticmethod
def from_key_ids(key_ids: list[UUID]) -> Container: def from_key_ids(key_ids: list[UUID]) -> Container: