shaka-packager/docs/source/options/general_encryption_options.rst

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General encryption options
^^^^^^^^^^^^^^^^^^^^^^^^^^
--protection_scheme <scheme>
Specify a protection scheme, 'cenc' or 'cbc1' or pattern-based protection
schemes 'cens' or 'cbcs'.
--vp9_subsample_encryption, --novp9_subsample_encryption
Enable / disable VP9 subsample encryption. Enabled by default.
--clear_lead <seconds>
Clear lead in seconds if encryption is enabled.
--generate_widevine_pssh
Generate a Widevine PSSH box. This option is always true
when using :doc:`/tutorials/widevine` key source.
--generate_common_pssh
Generate a v1 PSSH box for the common system ID that includes
the key IDs. See https://goo.gl/s8RIhr. This option is default to be
true when using :doc:`/tutorials/raw_key` source and no other pssh
flag is specified.
--generate_playready_pssh
Generate a PlayReady PSSH box. This option is always
true when using :doc:`/tutorials/playready` key source.