SCTE 35 Part 1
sap_type
splice_info_section
Signals whether a Stream Access Point exists at this point and, if so, which ISOBMFF SAP type it is. A value of 0x3 means no SAP type is specified.
splice_info_section
Signals whether a Stream Access Point exists at this point and, if so, which ISOBMFF SAP type it is. A value of 0x3 means no SAP type is specified.