A High Speed Video/Audio Stream Splitter for 4K Digital-Cinema

A secure stream multicasting architecture for 4K motion picture

“…However, the 4K stream uses standard Ethernet MTU size of 1.5 Kbyte packets without any continuous small packet. Therefore, we can conclude that the prototype system satisfies the performance requirement of generating 10 replicated 4K streams and matches the performance of the previously developed security-free 4K splitter [3].…”

“…The second, a performance evaluation of the 4K splitter, was to observe the stream bandwidth that could be processed without data loss. The previously developed 4K splitter can generate 10 replicated 1Gbps streams [3]. We confirmed whether its performance was degraded by implementing the functions.…”

“…The previously developed architecture [3] does not support security functions. This permits, first of all, invalid receiving clients to easily receive streams by receiver spoofing.…”

“…We implemented the gateway as software running on a PC with a pair of Intel Xeon 3.6 GHz MPUs and a pair of PCI-X based network interfaces. We also implemented the 4K splitter as hardware by adding the functions to the previously developed 4K splitter [3]. The 4K splitter has twelve 1 Gbps Ethernet interfaces.…”

“…A 4K stream multicasting architecture using a stream replication device called the 4K splitter has been introduced [3]. It is based on a multicast protocol called Flexcast [4] which uses IP unicast addresses to transfer data; this permits it to be realized in an IP multicast-disabled network.…”