Methods and devices for inserting an event into a transport flow, for monitoring, managing and receiving the transport flow, and computer program all corresponding thereto

A method for inserting an event into a transport stream intended to be broadcast in a broadcast network, characterized in that it implements the following steps:

• obtaining said transport stream,
• inserting, in said transport stream, at least one current event packet associated with content carried by said transport stream, said current event packet carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content;
• a desired delay between said current event packet and a reference packet of said content identified based on said reference time information,
• said current event packet being inserted into said transport stream at a position defined from the position of said reference packet and said desired delay.

A method for managing a transport stream broadcast in a broadcast network, characterized in that it implements the following steps:

• obtaining at least one offset among:
• at least one offset between an actual position of a current event packet in said transport stream, at the output of an equipment of the broadcast network, and a desired position of said current event packet in said transport stream, called processing offset,
• an offset determined according to a type of receiver intended to receive said transport stream, called reception offset,
• said current event packet being associated with content carried by said transport stream, and carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content;
• a desired delay between said current event packet and a reference packet of said content identified based on said reference time information,
• said desired position being determined based on said reference time information and on said desired delay,
• transmitting, to at least one other item of equipment of said broadcast network, said at least one obtained offset, or a global offset determined based on at least one obtained offset.

A method for receiving a transport stream broadcast in a broadcast network, characterized in that it implements the following steps:

• receiving a transport stream carrying at least one current event packet associated with content carried by said transport stream, said current event packet carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content,
• a desired or actual delay between said current event packet and a reference packet of said content identified based on said reference time information,
• synchronizing an event carried by payload data of said current event packet with a reference point associated with said reference time information, taking into account a waiting delay determined based on said synchronization header of said current event packet.

A device for monitoring a transport stream at the output of an equipment of a broadcast network, characterized in that it comprises a reprogrammable calculation machine or a dedicated calculation machine, configured for:

• obtaining the transport stream delivered by said equipment,
• detecting a current event packet associated with content carried by said transport stream, said event packet carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content;
• a desired delay between said current event packet and a reference packet of said content identified based on said reference time information,
• determining an offset between an actual position of said current event packet in said transport stream, and a desired position of said current event packet in said transport stream, determined based on said reference time information and on said desired delay, called processing offset.

A device for inserting an event into a transport stream intended to be broadcast in a broadcast network, characterized in that it comprises a reprogrammable calculation machine or a dedicated calculation machine, configured for:

• obtaining said transport stream,
• inserting, in said transport stream, at least one current event packet associated with content carried by said transport stream, said current event packet carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content;
• a desired delay between said current event packet and a reference packet of said content identified based on said reference time information,
• said current event packet being inserted into said transport stream at a position defined from the position of said reference packet and said desired delay.

A platform for managing a transport stream broadcast in a broadcast network, characterized in that it comprises a reprogrammable calculation machine or a dedicated calculation machine, configured for:

• obtaining at least one offset among:
• at least one offset between an actual position of a current event packet in said transport stream, at the output of an equipment of the broadcast network, and a desired position of said current event packet in said transport stream, called processing offset,
• an offset determined according to a type of receiver intended to receive said transport stream, called reception offset,
• said current event packet being associated with content carried by said transport stream, and carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content;
• a desired delay between said current event packet and a reference packet of said content identified based on said reference time information,
• said desired position being determined based on said reference time information and on said desired delay,
• transmitting, to at least one other item of equipment of said broadcast network, said at least one obtained offset, or a global offset determined based on at least one obtained offset.

A device for receiving a transport stream broadcast in a broadcast network, characterized in that it comprises a reprogrammable calculation machine or a dedicated calculation machine, configured for:

• receiving a transport stream carrying at least one current event packet associated with content carried by said transport stream, said current event packet carrying a synchronization header comprising:
• reference time information defined with respect to a reference clock of said content,
• a desired or actual delay between said current event packet and a reference packet of said content identified based on said reference time information,
• synchronizing an event carried by payload data of said current event packet with a reference point associated with said reference time information, taking into account a waiting delay determined based on said synchronization header of said current event packet.