Broadcast signal transmitter, broadcast system seamless switching availability detection method, and broadcast system seamless switching availability detection program

摘要

PROBLEM TO BE SOLVED: To provide a broadcast signal transmitting apparatus for detecting whether or not seamless switching is possible prior to switching between an active system and a standby system. SOLUTION: In a broadcast signal transmission device 1 to which an ARIB standard compliant MMT/TLV system is applied and which uses one of two broadcasting systems of a first system 100 and a second system 200 as an active system, The first decoding unit 104 and the second decoding unit 204 analyze each MMTP packet in which the encoded broadcast signal is multiplexed in the broadcasting system of its own system, and determine the start timing when the MMTP packet does not exist in its own system. By acquiring the end timing and the non-signal section of the own system and exchanging the acquired information of the no-signal section of the own system, the MMTP packet is transmitted to both the first system 100 and the second system 200. Is calculated, and if the length is less than a predetermined time threshold value, a decoding result indicating that seamless switching operation is impossible is output. [Selection diagram] Figure 1