6b8a8ba8a8
Add unshackle.core.cdm.detect helpers to classify CDMs consistently across local and remote backends. - Add is_playready_cdm/is_widevine_cdm for DRM selection across pyplayready, pywidevine, and wrappers - Add is_remote_cdm/is_local_cdm/cdm_location so services can branch on CDM execution location - Switch core DASH/HLS parsing, track DRM selection, and dl CDM switching away from brittle isinstance/DecryptLabs-only checks - Make unshackle.core.cdm import-light via lazy __getattr__ so optional CDM deps are only imported when needed
58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
"""
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CDM helpers and implementations.
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Keep this module import-light: downstream code frequently imports helpers from
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`unshackle.core.cdm.detect`, which requires importing this package first.
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Some CDM implementations pull in optional/heavy dependencies, so we lazily
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import them via `__getattr__` (PEP 562).
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"""
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from __future__ import annotations
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from typing import Any
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__all__ = [
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"DecryptLabsRemoteCDM",
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"CustomRemoteCDM",
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"MonaLisaCDM",
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"is_remote_cdm",
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"is_local_cdm",
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"cdm_location",
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"is_playready_cdm",
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"is_widevine_cdm",
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]
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def __getattr__(name: str) -> Any:
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if name == "DecryptLabsRemoteCDM":
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from .decrypt_labs_remote_cdm import DecryptLabsRemoteCDM
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return DecryptLabsRemoteCDM
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if name == "CustomRemoteCDM":
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from .custom_remote_cdm import CustomRemoteCDM
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return CustomRemoteCDM
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if name == "MonaLisaCDM":
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from .monalisa import MonaLisaCDM
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return MonaLisaCDM
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if name in {
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"is_remote_cdm",
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"is_local_cdm",
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"cdm_location",
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"is_playready_cdm",
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"is_widevine_cdm",
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}:
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from .detect import cdm_location, is_local_cdm, is_playready_cdm, is_remote_cdm, is_widevine_cdm
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return {
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"is_remote_cdm": is_remote_cdm,
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"is_local_cdm": is_local_cdm,
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"cdm_location": cdm_location,
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"is_playready_cdm": is_playready_cdm,
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"is_widevine_cdm": is_widevine_cdm,
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}[name]
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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