Raw key encryption options ^^^^^^^^^^^^^^^^^^^^^^^^^^ --enable_raw_key_encryption Enable encryption with raw key (keys provided in command line)). --enable_raw_key_decryption Enable decryption with raw key (keys provided in command line). --keys **key_info_string** is of the form:: label={label}:key_id={key_id}:key={key} *label* can be an arbitrary string or a predefined DRM label like AUDIO, SD, HD, etc. Label with an empty string indicates the default key and key_id. The *drm_label* in :doc:`/options/stream_descriptors`, which can be implicit, determines which key info is applied to the stream by matching the *drm_label* with the *label* in key info. *key_id* and *key* should be 32-digit hex strings. --iv <16-digit or 32-digit hex string> IV in hex string format. If not specified, a random IV will be generated. This flag should only be used for testing. IV must be either 8 bytes (16 digits HEX) or 16 bytes (32 digits in HEX). --pssh One or more concatenated PSSH boxes in hex string format. If not specified, a `v1 common PSSH box `_ will be generated.