Real-time Transport Object delivery over Unidirectional Transport (ROUTE)

Introduction Interoperability Chart

Element	ATSC-ROUTE	This Document	DVB-MABR
LCT header field: PSI LSB	Set to 0 for Source Flow	Not defined	Set to 1 for Source Flow for CMAF Random access chunk
LCT header field: CCI	May be set to 0	May be set to EPT for Source Flow
LCT header extensions	EXT_ROUTE_&zwsp;PRESENTATION_TIME Header used for MDE mode	Not defined; may be added by a profile.	Shall not be used.
LCT header extensions	EXT_TIME Header linked to MDE mode in Annex A.3.7.2	EXT_TIME Header may be used regardless (for FDT-Instance@Expires calculation)
Codepoints	Full set	Does not specify range 11 - 255 (leaves to profiles)	Restricted to 5 - 9
Session metadata	Full set	Only defines a small subset of data necessary for setting up Source and Repair Flows. Does not define format or encoding of data except if data is integral/alphanumerical. Leaves rest to profiles.	Reuses A/331 metadata, duplicated from its own service signaling.
Extended FDT	Instance shall not be sent with Source Flow	Not restricted, may be restricted by a profile.	Instance shall not be sent with Source Flow
Extended FDT	No restriction	Only allowed in File Mode
Delivery Object Mode	File, Entity, Signed/unsigned package		Signed/unsigned package not allowed
Sender operation: Packetization	Defined for DASH segment	Defined for DASH segment and CMAF Chunks
Receiver object recovery	Object handed to application upon complete reception	Object may be handed before completion if MPD@availabilityTimeOffset signaled
Receiver object recovery	-	Fast Stream acquisition guideline provided