The request's subtype, represented by a value from the following list: - 'initialization-segment' - Any value of ContentProtectionRequestSubType - Empty string ('') when the subtype is unknown
'initialization-segment'
''
The request's subtype, represented by a value from the following list:
-
'initialization-segment'
- Any value of ContentProtectionRequestSubType
- Empty string (
''
) when the subtype is unknown