WO2019230269A1 - Dispositif de traitement d'informations, procédé de traitement d'informations, et programme - Google Patents

Dispositif de traitement d'informations, procédé de traitement d'informations, et programme Download PDF

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Publication number
WO2019230269A1
WO2019230269A1 PCT/JP2019/017315 JP2019017315W WO2019230269A1 WO 2019230269 A1 WO2019230269 A1 WO 2019230269A1 JP 2019017315 W JP2019017315 W JP 2019017315W WO 2019230269 A1 WO2019230269 A1 WO 2019230269A1
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WIPO (PCT)
Prior art keywords
information
mmt
descriptor
data
format
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PCT/JP2019/017315
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English (en)
Japanese (ja)
Inventor
幸一 内村
伸一 竹田
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ソニー株式会社
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Priority to JP2020521798A priority Critical patent/JP7276332B2/ja
Publication of WO2019230269A1 publication Critical patent/WO2019230269A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. an encoded audio stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/39—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space-time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home

Definitions

  • the present disclosure relates to an information processing apparatus, an information processing method, and a program. More specifically, when a receiving device that receives MMT (MPEG Media Transport) data, which is scheduled to be standardized as a data transmission standard for future broadcast waves and the like, transmits program information when transmitting the received data to other devices.
  • MMT MPEG Media Transport
  • the present invention relates to an information processing apparatus, an information processing method, and a program that realize a configuration in which program information can be used at a data transmission destination.
  • the MMT format includes control information (SI: Signaling Information (SI) including various management information such as encoded data that constitutes content, such as images (Video), audio (Audio), subtitles (Subtitles), and control information and attribute information. Control information)) and the like are defined in a data transfer system (transport format) for transmitting data via broadcast waves or networks.
  • SI Signaling Information
  • management information such as encoded data that constitutes content, such as images (Video), audio (Audio), subtitles (Subtitles), and control information and attribute information.
  • Control information and the like are defined in a data transfer system (transport format) for transmitting data via broadcast waves or networks.
  • the MMT format is scheduled to be used for broadcasting next-generation content such as 4K images and high dynamic range (HDR) images.
  • next-generation content such as 4K images and high dynamic range (HDR) images.
  • Patent Document 1 International Publication No. WO2018 / 016294
  • Patent Document 1 International Publication No. WO2018 / 016294
  • Broadcast stations transmit various program contents according to the MMT format.
  • the broadcast station further records and distributes program information corresponding to the program, for example, program information such as the program title, broadcast date and time, and performers in various tables constituting the control information (SI).
  • program information such as the program title, broadcast date and time, and performers in various tables constituting the control information (SI).
  • various devices such as a television, a set top box (STB), and a PC are assumed.
  • These receiving apparatuses can acquire and use program information such as a program title, broadcasting date and time, and performers from control information (SI) received from a broadcasting station.
  • SI control information
  • the program content received by the receiving device may be transferred to another network connection device for viewing and use at the transfer destination.
  • program information that is, program information such as program title, broadcast date and time, performers, etc.
  • MMT format data is used for transfer of program information.
  • the present disclosure has been made in view of, for example, the above-described problems.
  • data according to the MMT format is output from a receiving apparatus to an external apparatus such as another network connection apparatus, the external apparatus is combined with program content.
  • an external apparatus such as another network connection apparatus
  • the first aspect of the present disclosure is: A data processing unit that inputs MMT (MPEG Media Transport) format data and generates transmission data to be transmitted to the network connection device;
  • the data processing unit The information processing apparatus generates program information corresponding to MMT format data included in input data, generates a program information recording table, and generates transmission data including a storage packet of the program information recording table.
  • MMT MPEG Media Transport
  • the second aspect of the present disclosure is: An MMT packet sequence storing MMT (MPEG Media Transport) format data is input, and a program information storage packet included in the MMT packet sequence is acquired.
  • the information processing apparatus includes a data processing unit that reads program information from the program information storage packet and displays the program information on a display unit.
  • the third aspect of the present disclosure is: An information processing method executed in an information processing apparatus, A data processing unit inputs MMT (MPEG Media Transport) format data and executes a data processing step for generating transmission data to be transmitted to the network connection device.
  • the data processing unit includes: There is an information processing method for acquiring program information corresponding to MMT format data included in input data, generating a program information recording table, and generating transmission data including a storage packet of the program information recording table.
  • the fourth aspect of the present disclosure is: An information processing method executed in an information processing apparatus,
  • the data processing unit inputs an MMT packet sequence storing MMT (MPEG Media Transport) format data, acquires a program information storage packet included in the MMT packet sequence,
  • program information is read from the program information storage packet and displayed on a display unit.
  • MMT MPEG Media Transport
  • the fifth aspect of the present disclosure is: A program for executing information processing in an information processing apparatus;
  • the data processing unit inputs MMT (MPEG Media Transport) format data, and executes a data processing step for generating transmission data to be transmitted to the network connection device.
  • the program includes: A program for acquiring program information corresponding to MMT format data included in input data, generating a program information recording table, and generating transmission data including a storage packet of the program information recording table.
  • the sixth aspect of the present disclosure is: A program for executing information processing in an information processing apparatus; An MMT packet sequence storing MMT (MPEG Media Transport) format data is input to the data processing unit, and a program information storage packet included in the MMT packet sequence is acquired. The program information is read from the program information storage packet and displayed on the display unit.
  • MMT MPEG Media Transport
  • the program of the present disclosure is a program that can be provided by, for example, a storage medium or a communication medium provided in a computer-readable format to an information processing apparatus or a computer system that can execute various program codes.
  • a program in a computer-readable format, processing corresponding to the program is realized on the information processing apparatus or the computer system.
  • system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.
  • program information is acquired from a control information recording table stipulated by the MMT format, an MMT packet sequence including a program information storage packet, or a TS packet sequence is generated and transmitted, and transmitted.
  • a configuration that enables the use of program information in advance is realized.
  • a receiving device that receives data from a broadcasting station has a data processing unit that inputs MMT format data and generates transmission data to be transmitted to the network connection device.
  • the data processing unit acquires program information corresponding to MMT format data, generates a program information recording table, and generates transmission data including a program information storage packet.
  • the data processing unit acquires program information from a control information recording table such as an MMT format-defined event information table (MH-EIT), and transmits transmission data composed of an MMT packet sequence or a TS packet sequence,
  • the program information can be used at the transmission destination.
  • program information is acquired from a control information recording table stipulated in the MMT format, an MMT packet sequence including a program information storage packet or a TS packet sequence is generated and transmitted, and the use of program information at the transmission destination is achieved.
  • MH-EIT MMT format-defined event information table
  • FIG. 5 is a diagram for describing correspondence data between descriptors recorded in an SIT (selection information table) in MPEG2-TS format, descriptors that can be acquired from control information in MMT format, and processing executed by the receiving device of the present disclosure.
  • MPT MMT package table
  • MH-EIT event information table
  • FIG. 11 is a diagram illustrating a flowchart for explaining a processing sequence of processing executed by the information processing apparatus. It is a figure explaining the hardware structural example of the information processing apparatus of this indication.
  • the broadcast station 11 shown in FIG. 1 transmits data according to the MMT format.
  • the MMT format is a data transmission standard proposed for realizing data transmission of high-quality images such as broadcasting of 4K images and 8K images.
  • the MMT format is control information (SI: Signaling Information (SI) including various management information such as encoded data, content information, program information, such as image (Video), audio (Audio), subtitle (Subtitle), and the like.
  • SI Signaling Information
  • the data transfer method (transport format) for transmitting data such as control information)) via broadcast waves or networks is defined.
  • Program information related to broadcast content such as a program distributed by a broadcast station, for example, various program information such as program title, broadcast date and time, performers, and categories (news, drama, sports, etc.) constitute control information (SI). Is recorded in the table. These pieces of program information are stored in a packet (TLV packet / MMT packet) transmitted through a broadcast wave together with program content, and transmitted to a receiving device on the user side.
  • SI control information
  • FIG. 1 shows a broadcast receiver (STB: Set Top Box) 12, a TV 14, and a recording / reproducing device 16 as devices (receiving devices) that receive MMT format data.
  • STB Set Top Box
  • TV 14 a recording / reproducing device 16
  • receive MMT format data receive MMT format data.
  • These receiving apparatuses understand the MMT format, can acquire content made up of images, sounds, and the like stored in accordance with the MMT format and output them to a TV or media.
  • program information stored in a packet TLV packet / MMT packet
  • the receiving device receives the data received by the receiving device from other devices connected to the home, such as devices in the house, other network connection devices such as PCs and recording / playback devices (recorders), etc. May output to equipment.
  • devices in the house such as devices in the house, other network connection devices such as PCs and recording / playback devices (recorders), etc. May output to equipment.
  • other network connection devices such as PCs and recording / playback devices (recorders), etc. May output to equipment.
  • the receiving apparatus transfers the MMT format as it is, or converts the MMT format into another format, for example, an existing format such as the MPEG-2TS format, and transfers it.
  • MPEG-2TS is used as a transmission format such as the current image (Video), audio (Audio), subtitle (Subtitle), etc., or as a data recording format for media. This is because many formats are used. It is assumed that the network connection device at the data output destination is a device that cannot process MMT format data and can only process the MPEG-2TS format.
  • the image or audio data constituting the program content is converted to the MMT format or the MPEG-2TS format and transferred to reproduce the program content at the transfer destination. Can be performed.
  • FIG. 1 (1) received data of a broadcast receiver (STB) 12 is output to a recording / reproducing apparatus (recorder) 13 via a network, and broadcast contents are copied or moved (moved) to the recording / reproducing apparatus (recorder) 13. This is an example of recording.
  • FIG. 1 (2) shows an example in which broadcast content is recorded in a medium (HDD or the like) built in or connected to the TV.
  • the HDD has a limited recording capacity, and in order to record new content, this is an example in which old recorded content is output to another device, for example, the recording / reproducing device 15 via the network.
  • FIG. 1 (3) shows an example in which the recording / reproducing device 16 that has received the broadcast wave records it on a medium (BD), and the portable terminal 17 receives the recorded data via a network and performs streaming reproduction.
  • BD medium
  • the receiving device generates program information corresponding to the program content received from the broadcasting station 11 by the receiving device, for example, program information such as the program title, broadcast date and time, performers, etc., and transmits it to the external device.
  • This processing rule exists as a rule when the data received from the broadcasting station is in the MPEG2-TS format.
  • the receiving device receives the conventional MPEG-2TS format data from the broadcasting station and transfers it to another network connection device, the receiving device receives the SIT (SIT (Recording Information Recording Table) defined in the MPEG-2TS format).
  • SIT Recording Information Recording Table
  • a selection information table is generated and transferred.
  • the receiving apparatus records and transfers the program information corresponding to the transfer content in the SIT (selection information table).
  • the SIT selection information table
  • the broadcasting station controls information about various programs such as program titles, broadcast dates and times, performers, categories (news, drama, sports, etc.) in addition to images and audio information constituting the programs.
  • SI selection information table
  • PMT default program map table
  • the receiving apparatus is a TS composed of TS packets storing program image and audio data to be transmitted to the network connection apparatus, and TS packets storing SIT (selection information table) composed of program information related to the transferred program.
  • SIT selection information table
  • a partial transport stream that is a stream is generated and transmitted to the network connection device.
  • the receiving device When the program content is transferred, the receiving device generates a SIT (Selection Information Table) in which program information related to the transferred program is recorded.
  • the receiving device selects necessary information from a table (for example, PMT) constituting control information (SI) received from the broadcasting station, records the selection information at a predetermined position of the SIT, and includes program information related to the transfer program. Generate SIT.
  • this rule is a rule when the data received from the broadcasting station is in the MPEG-2TS format and the transfer data is also in the MPEG-2TS format.
  • the receiving device acquires necessary data from the control information (SI) received from the broadcasting station in accordance with this rule, and records it in the SIT, whereby the program information recording table relating to the transferred program, that is, the SIT is connected to the network connection device. Can be transmitted together with the program content.
  • SI control information
  • the current rule is a rule when the data received from the broadcasting station is in the MPEG-2TS format and the transfer data is also in the MPEG-2TS format. Therefore, it cannot be used when the data received from the broadcasting station is in the MMT format.
  • the program information recording table corresponding to the MPEG-2TS format distributed by the broadcasting station is different from the program information recording table corresponding to the MMT format, and when the data received by the receiving device from the broadcasting station is in the MMT format, It is necessary to generate and transfer a program information recording table by a completely different procedure.
  • Program information recording table (SIT: selection information table) in accordance with current regulations, that is, generated by the receiving device when the received data from the broadcasting station is in the MPEG-2TS format and the transfer data is also in the MPEG-2TS format
  • SIT selection information table
  • the SIT selection information table
  • management information control information, attribute information, etc.
  • PID unit data type
  • First descriptor loop transmission information descriptor loop
  • Second descriptor loop service information descriptor loop
  • first descriptor loop transmission information descriptor loop
  • second descriptor loop service information descriptor loop
  • FIG. 4 A specific example of the descriptor recorded in the SIT (selection information table) is shown in FIG.
  • the descriptor shown in FIG. 4 is a descriptor recorded in an SIT (selection information table) defined as a program information recording table in the current MPEG-2 TS format.
  • FIG. 4 shows the value of the tag (descriptor_tag) defined in the MPEG-2TS format corresponding to each descriptor, the descriptor name, and the meaning thereof in association with each other.
  • Service descriptor channel name and company name, etc.
  • Short format event descriptor Description of program name and brief description of program
  • Extended format event descriptor Description of detailed information about program ( 4)
  • Component descriptor type, description, etc. regarding video component (5)
  • Content descriptor program genre, etc.
  • Event group descriptor grouping of events with the same content when sharing an event and event relay link
  • Broadcaster name descriptor broadcaster name (broadcasting station name)
  • Component group descriptor component group in multi-view television (MVTV)
  • Series descriptor series information across multiple events
  • Network identification descriptor network of generation source of partial TS (transport stream) Information
  • Partial Transport Stream Time Descriptor Generation Time Information of Partial TS (Transport Stream)
  • Broadcast ID Descriptor Various IDs for Broadcasting Necessary for Data Broadcast Playback
  • FIG. 5 shows a broadcasting station 11 such as a broadcasting server, a receiving device 20, and a network connection device 30.
  • a broadcast station 11 such as a broadcast server transmits data according to the MMT format.
  • the receiving device 20 receives MMT format data from the broadcast station 11.
  • FIG. 5 shows a broadcast receiver (STB: Set Top Box) 21, a TV 22, a recording / playback device 23, a PC 24, and a portable terminal 25 as examples of the receiving device 20.
  • STB Set Top Box
  • TV 22 a TV 22
  • recording / playback device 23 a PC 24, and a portable terminal 25
  • PC 24 a PC 24
  • portable terminal 25 as examples of the receiving device 20.
  • These devices are all devices that can understand MMT format data and perform data processing on the MMT format data.
  • These receiving devices 20 transmit broadcast content to the network connection device 30 via a communication network such as a home network.
  • the reception apparatus 20 executes one of the following two processes.
  • the MMT format data configured by the MMT packet sequence is transmitted to the network connection device 30.
  • the MMT format is converted to the MPEG2-TS format, and MPEG-2 TS format data constituted by a TS packet sequence is transmitted to the network connection device 30.
  • the receiving device 20 executes either one of these two processes or selectively executes both. For example, if the broadcast content transmission destination device is a device capable of processing the MMT format, (Process 1) is executed, and if the broadcast content transmission destination device is a device that cannot process the MMT format ( Process 2) is executed.
  • the receiving device 20 when executing either (Processing 1) or (Processing 2), the receiving device 20 generates a table in which program information related to content (program) to be transmitted to the network connection device 30 is generated, and the MMT packet, Alternatively, it is stored in a TS packet and transmitted together with program content.
  • the receiving device 20 selects and acquires program information from control information (SI) included in the MMT format data received from the broadcast station 11, and generates a table in which the program information is recorded.
  • SI control information
  • the (program 1) that is, the program information recording table stored in the MMT format data composed of the MMT packet sequence is called MH-SIT (selection information table).
  • the program information recording table stored in the MPEG2-TS format data composed of the TS packet sequence is called SIT (selection information table) as usual.
  • MH means data or a table corresponding to the MMT format.
  • each table is classified into a plurality of message categories according to stored data. For example, there are a PA message, an M2 section message, a CA message, an M2 short section message, and a data transmission message.
  • the newly defined program information recording table MH-SIT selection information table is a table belonging to the M2 section message.
  • the data processing unit of the network connection device 30 that has received the MMT packet sequence or the TS packet sequence from the receiving device 20, in any case, the MH-SIT storage packet in which program information is recorded based on the packet identifier from each packet sequence, or It is possible to acquire the SIT storage packet and refer to and use the program information.
  • the data processing unit of the network connection device 30 can perform processing such as reading program information from the program information storage packet and displaying it on the display unit.
  • the MH-SIT storage packet in which the program information is recorded, or the program information stored in the SIT storage packet is composed of a plurality of different descriptors, and at least some of the descriptors are
  • the descriptor is the same as the descriptor defined in the conventional MPEG2-TS format selection information table (SIT), and the network connection device 30 can use the program information by almost the same processing as the conventional one.
  • the MH-SIT (selection information table) generation process corresponding to the MMT format and the SIT (selection information table) generation process compatible with the MPEG2-TS format executed in the receiving apparatus 20 will be described in detail later.
  • MMT MPEG Media Transport format
  • MMT MPEG Media Transport
  • FIG. 6 is a diagram showing a stack model in the MMT format.
  • a physical layer PHY
  • the physical layer is divided into a broadcast layer that performs broadcast processing and a broadband layer that performs network processing.
  • the MMT enables processing using two communication networks, a broadcast system and a network system.
  • TLV Type Length Value
  • PHY physical layer
  • TLV is a format defining layer that defines a multiplexing method for IP packets. A plurality of IP packets are multiplexed and transmitted as TLV packets.
  • TLV-SI is a transmission layer of control information (SI) such as control messages according to the TLV format.
  • Control information is configured by setting information necessary for receiving and playing back content (program) on the receiving device side, guide information such as program information, notification information, control information, and management information.
  • the control information (SI) stored in the TLV packet generated by the TLV layer is TLV-SI, which is mainly composed of control information related to reception processing.
  • Control information (SI) stored in an MMT packet (sometimes referred to as an MMTP packet) that is a packet generated according to the MMT protocol (MMTP) is MMT-SI shown in the highest layer, and mainly relates to playback control. It consists of control information.
  • a UDP / IP layer is set on the TLV layer.
  • the UDP / IP layer can be divided into an IP layer and a UDP layer in detail, but is a layer that defines transmission for storing a UDP packet in the payload of the IP packet.
  • An MMT layer and a File delivery method layer are set on the UDP / IP layer. The setting is such that the MMT packet is stored in an IP packet and transmitted, and the method of transmitting data as an IP packet using the File delivery method, which is a data transmission method that does not use the MMT packet, can be used together.
  • Image (Video) data that is encoded image data in accordance with HEVC (High Efficiency Video Coding), which is an image encoding standard
  • Audio data that is encoded audio data in accordance with AAC (Advanced Audio Coding) that is an audio encoding standard
  • Subtitle data that is encoded subtitle data in accordance with TTML (Timed Text Markup Language) that is a subtitle encoding standard
  • Control information MMT-SI
  • HTML5 Hyper Text Markup Language 5
  • the control information is control information (control information) transmitted in an MMT packet, and information such as setting information and program information necessary for reproducing content (program) on the information processing apparatus 30 side. It consists of various management information such as guidance information, notification information, and control information.
  • time information is absolute time information and is directly stored in a UDP packet and transmitted.
  • Other data services for data distribution can be distributed using a file distribution method (File delivery method) different from MMT.
  • control information (MMT-SI) and applications composed of various management information such as images, audio, subtitles, and various notification information and control information are transmitted by MMT packets.
  • control information included in the MMT format data will be described with reference to FIG. As shown in FIG. 7, the control information includes the following information. TLV control information (TLV-SI) MMT control information (MMT-SI)
  • the control information includes setting information necessary for receiving content (programs and the like) on the information processing apparatus 30 side, guide information such as program information and notification information, It consists of management information such as control information.
  • the control information stored in the TLV packet generated by processing in the TLV layer is TLV control information (TLV-SI), and the control information stored in the MMT packet, which is a packet generated according to the MMT protocol, is stored in the highest layer.
  • TLV-SI TLV control information
  • MMT-SI MMT control information
  • management information such as program information included in MMT format data
  • management information such as program information included in the MMT format data
  • the two types of management information (TLV-SI, MMT-SI) shown in FIG. 7 (1) include a plurality of tables (TLV-NIT, MH-BIT, ..., MPT, ). Further, as shown in FIG. 7 (3), various program information, management information, and the like are recorded in these plural tables in units of descriptors (Descriptors).
  • descriptor service descriptor
  • content descriptor that indicates the content (program) (performers, etc.)
  • copy control descriptor copy permission information of content (program)
  • parental information descriptor indicating the age limit for viewing content (program)
  • FIG. 8 is a diagram illustrating an example of a management information recording table distributed by the broadcast station 11.
  • FIG. 8A shows an example of a management information recording table according to the MMT format distributed by the broadcast station 11 when the data distributed by the broadcast station 11 is in the MMT format.
  • the receiving device 20 receives these tables, and generates a table (MH-SIT, SIT) in which program information is recorded from these tables.
  • PMT program map table
  • the management information recording table according to the MMT format distributed by the broadcasting station includes the following tables.
  • A TLV-NIT (network information table)
  • B MH-BIT (Broadcaster information table)
  • C MH-SDT (service description table)
  • D MH-EIT (event information table)
  • E MH-TOT (time offset table)
  • F MPT (MMT package table)
  • TLV-NIT network information table
  • TLV-SI TLV control information
  • B MH-BIT (broadcaster information table) is a table included in MMT control information (MMT-SI), and is a table in which information on broadcasters on the network is recorded.
  • MH-SDT service description table
  • MMT-SI MMT control information
  • channel-related information such as channel names and broadcaster names are recorded.
  • the MH-EIT event information table
  • MMT-SI MMT control information
  • content-related information such as the name of the content (program, etc.), broadcast date and time, and description of the content. It is a table.
  • MH-TOT time offset table
  • MMT-SI MMT control information
  • D-related information such as current date and time information is recorded.
  • MPT MMT package table
  • assets images, audio, subtitles, etc.
  • It is the table which recorded package composition information, such as a position.
  • the management information recording table according to the MPEG2-TS format distributed by the broadcasting station includes the following tables.
  • PMT Program Map Table
  • PSI Program Specific Information
  • data management information control information, attribute information, etc.
  • PID unit data type
  • the receiving apparatus When the broadcasting station distributes MPEG2-TS format data as in the example described above with reference to FIG. 2, the receiving apparatus generates a table (SIT) in which program information is recorded mainly from the PMT. To the network connection device.
  • SIT a table in which program information is recorded mainly from the PMT.
  • the receiving device 20 receives a table according to the MMT format data shown in FIG. 8A from the broadcast station 11, and from these tables, a table (MH-SIT, SIT) in which program information is recorded. (Selection information table)) is generated.
  • the receiving apparatus 20 converts the program information recording table (MH-SIT, SIT) including almost the same data as the conventional MPEG2-TS format-based program information recording table (SIT) into the MMT format data shown in FIG.
  • the process of selecting and generating data such as descriptors recorded in each table is performed.
  • FIG. 9 illustrates the correspondence data between the descriptors recorded in the SIT (selection information table) in the MPEG2-TS format, the descriptors that can be acquired from the control information in the MMT format, and the processing executed by the receiving device of the present disclosure. It is a figure to do.
  • FIG. A Descriptor recorded in SIT (selection information table) in MPEG2-TS format
  • B Descriptor recorded in control information (SI) in MMT format corresponding to descriptor shown in
  • SI control information
  • C A table in which the disclosed receiving device 20 acquires a descriptor from MMT format data received from the broadcast station 11 or processing executed by the receiving device 20 shows corresponding data.
  • the data shown in entry (1) will be described.
  • the (A) service descriptor recorded in the SIT (selection information table) in the MPEG2-TS format is also recorded as the MH-service descriptor in the control information (SI) in the MMT format as shown in (B). ing.
  • This descriptor is recorded in the service description table (MH-SDT) corresponding to the MMT format, as shown in (C).
  • a receiving apparatus that receives MMT format data from a broadcast station acquires a service descriptor from an MMT compatible service description table (MH-SDT) and records it in a program information recording table (MH-SIT, SIT). be able to.
  • MH-SDT MMT compatible service description table
  • MH-SIT program information recording table
  • the short format event descriptor shown in the entry (2) can be obtained by acquiring a service descriptor from the MMT event information table (MH-EIT) and recording it in the program information recording table (MH-SIT, SIT). it can.
  • the descriptors corresponding to the other descriptors (8) to (11) are not recorded in the MMT-compatible table, and the receiving apparatus cannot obtain the corresponding descriptor from the MMT format data. In such a case, processing corresponding to each descriptor shown in FIG. 9C is performed. Details of specific processing corresponding to each descriptor will be described later.
  • the table (MH-EIT, etc.) constituting the control information (SI) corresponding to MMT transmitted from the broadcasting station 11 contains the MPEG-2TS described above with reference to FIGS. A lot of data similar to the descriptor recorded in the SIT (Selection Information Table) defined in the format is recorded. Therefore, the receiving apparatus 20 is specified in the MPEG-2TS format by selectively acquiring descriptors (descriptors) recorded in each table constituting control information (SI) transmitted by the broadcast station 11 according to the MMT format. Data similar to SIT (selection information table) can be generated.
  • FIG. 10 is a diagram illustrating a data configuration (syntax) of an MMT package table (MPT) stipulated in the MMT format.
  • the MMT package table (MPT) is a table that records a list of assets (images, audio, subtitles, etc.) that are components of a content (program, etc.) package, and package configuration information such as positions.
  • an asset unit descriptor (asset descriptor) is recorded in the MMT package table (MPT).
  • an entry (8) parental rate descriptor shown in FIG. 9 is recorded.
  • FIG. 11 is a diagram showing a data configuration (syntax) of an event information table (MH-EIT) stipulated in the MMT format.
  • the event information table (MH-EIT) is a table that records content-related information such as the name of the content (program, etc.), the broadcast date and time, and the description of the content.
  • a descriptor recording area is also set in the event information table (MH-EIT), and various descriptors are recorded here.
  • a plurality of descriptors such as the entry (2) short format event descriptor shown in FIG. 9 are recorded.
  • the receiving device 20 can acquire various descriptors for recording in the program information recording table (MH-SIT, SIT) from these MMT compatible tables.
  • MH-SIT, SIT program information recording table
  • the reception device 20 receives MMT format data from the broadcast station 11.
  • the receiving device 20 is a device capable of understanding the MMT format data and performing data processing on the MMT format data.
  • the receiving device 20 transmits broadcast content to the network connection device 30 via a communication network such as a home network.
  • the reception apparatus 20 executes one of the following two processes.
  • Process 1 Generate MMT format data composed of an MMT packet sequence, generate a program information recording table (MH-SIT), store it in the MMT packet, and transmit it to the network connection device 30.
  • Process 2 Convert MMT format to MPEG2-TS format to generate MPEG-2TS format data composed of TS packet sequences, and generate program information recording table (SIT) and store in MPEG2-TS packet To the network connection device 30.
  • MH-SIT program information recording table
  • FIG. 13 (1) shows the data structure (syntax) of the program information recording table (MH-SIT) shown in FIG.
  • FIG. 13 (2) shows the data structure (syntax) of the program information recording table (SIT) to be inserted into the MPEG-2TS packet sequence shown in FIG. 12 (Process 2).
  • the MMT compatible program information storage table MH-SIT shown in FIG. 13A is a new table that has not been defined in the MMT format so far.
  • the MPEG2-TS compatible program information storage table SIT shown in FIG. 13 (2) corresponds to a table already defined in the MPEG-2TS format, and the table configuration described above with reference to FIGS. Has the same configuration as
  • the MMT compatible program information storage table MH-SIT shown in FIG. 13 (1) also basically has the same data structure as the existing MPEG2-TS compatible program information storage table SIT shown in FIG. 13 (2).
  • Each has the following two descriptor recording areas as described above with reference to FIG. (1)
  • First descriptor loop transmission information descriptor loop
  • Second descriptor loop service information descriptor loop
  • the first descriptor loop transmission information descriptor loop
  • a descriptor corresponding to management information (including program information) corresponding to each transmission processing unit data is recorded.
  • the second descriptor loop service information descriptor loop
  • a descriptor corresponding to management information (including program information) for each service (program etc.) is recorded.
  • the table ID of the MMT compatible program information storage table MH-SIT shown in FIG. 13 (1) is [0xE0], and the table ID of the MPEG2-TS compatible program information storage table SIT shown in FIG. [0x7F].
  • Table ID [0x7F] of the MPEG2-TS compatible program information storage table SIT shown in FIG. 13 (2) is a specified ID on the MPEG2-TS format.
  • the table ID [0xE0] of the MMT compatible program information storage table MH-SIT shown in FIG. 13 (1) is the current free ID in the MMT format. It is also possible to use other IDs as long as no conflict occurs.
  • the MMT package ID recorded in the MMT package table (MPT) defined in the MMT format is recorded. This is to record a common service ID for the same service in the MMT format.
  • the service ID recorded in the MPEG2-TS compatible program information storage table SIT shown in FIG. 13 (2) is the service ID recorded in the program map table (PMT) defined in the MPEG2-TS format. To do. This is also for recording a common service ID for the same service in the MPEG2-TS format.
  • PMT program map table
  • the receiving device 20 generates one of the two program information recording tables (MH-SIT, SIT) shown in FIG. 13 and transmits it to the network connection device 30.
  • the data processing unit of the network connection device 30 that has received the MMT packet sequence or the TS packet sequence from the receiving device 20, in any case, the MH-SIT storage packet in which program information is recorded based on the packet identifier from each packet sequence, or It is possible to acquire the SIT storage packet and refer to and use the program information.
  • the data processing unit of the network connection device 30 can perform processing such as reading program information from the program information storage packet and displaying it on the display unit.
  • program information is recorded as a descriptor in the descriptor loop in the MH-SIT and SIT shown in FIG. At least some of these descriptors are the same as those defined in the conventional MPEG2-TS format selection information table (SIT), and the network connection device 30 is substantially the same as the conventional one.
  • the program information can be used by the processing.
  • the reception device 20 executes one of the following two processes.
  • Process 1 Generate MMT format data composed of an MMT packet sequence, generate a program information recording table (MH-SIT), store it in the MMT packet, and transmit it to the network connection device 30.
  • Process 2 Convert MMT format to MPEG2-TS format to generate MPEG-2TS format data composed of TS packet sequences, and generate program information recording table (SIT) and store in MPEG2-TS packet To the network connection device 30.
  • MH-SIT program information recording table
  • FIG. 14 shows an example of processing steps S11 to S13 executed by the receiving apparatus 20 and a service descriptor record in the program information recording table (MH-SIT, SIT) generated as a result of these processes.
  • step S11 and step S12 are executed.
  • a service descriptor having the data structure shown in FIG. 14A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S11 and step S13 are executed.
  • a service descriptor having the data structure shown in FIG. 14B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S11 the receiving device 20 acquires a service description table (MH-SDT) from control information (SI) of MMT format data received from the broadcast station 11, and from this service description table (MH-SDT), a program is acquired.
  • Information corresponding to the service descriptor recorded in the information recording table (MH-SIT, SIT (selection information table)) is acquired.
  • the MH-SDT (service description table) is a table included in the MMT control information (MMT-SI) and includes channel-related information such as a channel name and a broadcaster name. Is a table in which is recorded.
  • the receiving device 20 acquires information corresponding to the service descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the service description table (MH-SDT). Specifically, information such as a service type indicating the type of program, an operator name as program provider information, and a channel name indicating a program providing channel is acquired.
  • the MH-SDT (service description table) distributed in the MMT format includes two types of tables: all station information common to all broadcasting stations and each station information that is information of each station.
  • the table used here is an MH-SDT (service description table) corresponding to each station information, which is information for each station.
  • Step S12 The process of step S12 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 records the service descriptor in the MPEG2-TS compatible program information recording table (SIT) using the information acquired from the MMT format compatible service description table (MH-SDT) in step S11. To do.
  • the service descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the service descriptor having the data structure shown in FIG. 14A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • the service type, provider name, and channel name are information acquired from the service description table (MH-SDT) corresponding to the MMT format in step S11.
  • the service type information that can be acquired from the service description table (MH-SDT) corresponding to the MMT format includes the digital TV service corresponding to 0x01 and the temporary video service corresponding to 0xA1 shown in FIG.
  • One of these two service types is recorded in the service descriptor of the program information recording table (SIT) corresponding to the MPEG2-TS format shown in FIG.
  • Step S13 is a process executed when the receiving apparatus 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT program information recording table
  • the receiving device 20 records the service descriptor in the MMT compatible program information recording table (MH-SIT) using the information acquired from the MMT format compatible service description table (MH-SDT) in step S11. To do.
  • the service descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the service descriptor having the data structure shown in FIG. 14B is recorded in the MMT compatible program information recording table (MH-SIT).
  • the service type, provider name, and channel name are information acquired from the service description table (MH-SDT) corresponding to the MMT format in step S11.
  • step S11 the service type information that can be acquired from the service description table (MH-SDT) corresponding to the MMT format corresponds to the digital television service corresponding to 0x01 shown in FIG. 15B and 0xA1.
  • One of these two service types is recorded in the service descriptor of the program information recording table (MH-SIT) corresponding to the MMT format shown in FIG. 14B. .
  • FIG. 16 shows processing steps S21 to S23 executed by the receiving apparatus 20, and a recording example of short format event descriptors in the program information recording table (MH-SIT, SIT) generated as a result of these processes. Yes.
  • step S21 and step S22 are executed.
  • a short format event descriptor having the data structure shown in FIG. 16A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S21 and step S23 are executed.
  • a short format event descriptor having the data structure shown in FIG. 16B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S21 First, in step S21, the receiving device 20 acquires an event information table (MH-EIT) from control information (SI) of MMT format data received from the broadcast station 11, and from this event information table (MH-EIT) Information corresponding to the short format event descriptor to be recorded in the information recording table (MH-SIT, SIT (selection information table)) is acquired.
  • MH-EIT event information table
  • SI control information
  • MH-EIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the receiving device 20 acquires information corresponding to the short format event descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, information such as program language information (ISO639 language code), program name, and program detailed information is acquired.
  • Step S22 The process of step S22 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) compatible with the MMT format in step S21 to store the short format event descriptor in the program information recording table (SIT) compatible with MPEG2-TS. Record.
  • the short format event descriptor recording area is the second descriptor loop (service information descriptor loop).
  • the short format event descriptor having the data structure shown in FIG. 16A is recorded in the MPEG2-TS compatible program information recording table (SIT).
  • descriptor tag 0x4D is recorded, and further information such as program language information (ISO639 language code), program name, and program detailed information is recorded.
  • Descriptor tag 0x4D is a tag used as a short format event descriptor tag in the conventional MPEG2-TS compatible SIT.
  • the program language information, program name, and program detailed information are information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S21.
  • Step S23 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S21 to store the short format event descriptor in the program information recording table (MH-SIT) compatible with the MMT. Record.
  • the short format event descriptor recording area is the second descriptor loop (service information descriptor loop).
  • the short format event descriptor having the data structure shown in FIG. 16B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0xF001 is recorded, and information such as program language information (ISO639 language code), program name, and program detailed information is recorded.
  • Descriptor tag 0xF001 is a tag used as a short event descriptor tag in the MMT format.
  • the program language information, program name, and program detailed information are information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S21.
  • FIG. 17 shows processing steps S31 to S33 executed by the receiving device 20, and FIG. 18 shows an extended format event descriptor in the program information recording table (MH-SIT, SIT) generated as a result of these processing. An example of recording is shown.
  • MH-SIT program information recording table
  • step S31 and step S32 are executed.
  • an extended format event descriptor having the data structure shown in FIG. 18A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S31 and step S33 are executed.
  • the extended format event descriptor having the data structure shown in FIG. 18B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S31 First, in step S31, the receiving device 20 acquires an event information table (MH-EIT) from the control information (SI) of MMT format data received from the broadcast station 11, and from this event information table (MH-EIT) Information corresponding to the extended format event descriptor to be recorded in the information recording table (MH-SIT, SIT (selection information table)) is acquired.
  • MH-EIT event information table
  • SI control information
  • MH-EIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the receiving device 20 acquires information corresponding to the extended format event descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, information such as program language information (ISO639 language code), item names such as performers and directors, and item contents is acquired.
  • Step S32 The process of step S32 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving apparatus 20 uses the information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S31, and adds the extended format event descriptor to the program information recording table (SIT) compatible with MPEG2-TS. Record.
  • the extended format event descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the extended format event descriptor having the data configuration shown in FIG. 18A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • descriptor tag 0x4E is recorded, and further information such as program language information (ISO639 language code), item names and item contents such as performers and directors, etc. Is recorded.
  • Descriptor tag 0x4E is a tag used as an extended event descriptor tag in the conventional MPEG2-TS compliant SIT.
  • the language information of the program, item names such as performers and directors, and item content information are information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S31.
  • Step S33 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcast station.
  • MH-SIT MMT compatible program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) compatible with the MMT format in step S31, and stores the extended format event descriptor in the program information recording table (MH-SIT) compatible with MMT. Record.
  • the extended format event descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the extended format event descriptor having the data configuration shown in FIG. 18B is recorded in the MMT compatible program information recording table (MH-SIT).
  • the language information of the program, item names such as performers and directors, and item content information are information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S31.
  • FIG. 19 shows processing steps S41 to S43 executed by the receiving apparatus 20, and FIG. 20 shows a recording example of component descriptors in the program information recording table (MH-SIT, SIT) generated as a result of these processes. Yes.
  • step S41 and step S42 are executed.
  • a component descriptor having the data structure shown in FIG. 20A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S41 and step S43 are executed.
  • a component descriptor having the data structure shown in FIG. 20B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S41 the receiving device 20 acquires the MMT package table (MPT) or the event information table (MH-EIT) from the control information (SI) of the MMT format data received from the broadcast station 11, and acquires the acquired MMT package.
  • Information corresponding to the component descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) is acquired from the table (MPT) or the event information table (MH-EIT).
  • the MMT package table is a table included in the MMT control information (MMT-SI), and is an asset (image) that is a component of a content (program etc.) package. , Audio, subtitles, etc.) and a table in which package configuration information such as position is recorded.
  • the MH-EIT event information table
  • MMT-SI MMT control information
  • content-related information such as the name of the content (program, etc.), broadcast date and time, and description of the content. .
  • the receiving device 20 uses the MMT package table (MPT) or the event information table (MH-EIT) to receive information corresponding to the component descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)). To get.
  • MPT MMT package table
  • MH-EIT event information table
  • FIG. 21 shows the data structure of the video component descriptor recorded in the MMT package table (MPT) and the event information table (MH-EIT). As shown in FIG. 21, the following information is included in the video component descriptor recorded in the MPT and MH-EIT in the MMT format.
  • Video signal transfer characteristics (video_rtransfer_characteristics) Specific setting values for each piece of information are as shown in FIG.
  • FIG. 22 shows only a part of values defined in the MMT.
  • step S41 the receiving device 20 acquires the video component descriptor having the data configuration shown in FIG. 21 from the MMT package table (MPT) or the event information table (MH-EIT).
  • MMT MMT package table
  • MH-EIT event information table
  • Step S42 The process of step S42 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 receives the video component descriptor acquired from the MMT package table (MPT) or event information table (MH-EIT) corresponding to the MMT format in step S41, that is, the video having the data configuration shown in FIG.
  • the component descriptor record information is converted into MPEG2-TS compatible component descriptor record information. Thereafter, this conversion information is recorded as a component descriptor in a program information recording table (SIT) compatible with MPEG2-TS.
  • the component descriptor recording area is a second descriptor loop (service information descriptor loop).
  • FIG. 20A shows the data structure of the component descriptor of the MPEG2-TS compatible program information recording table (SIT).
  • MPEG2-TS compatible component descriptors include: Stream content (stream_content) information, Component type (component_type) information, It is necessary to record such information.
  • the resolution of the data received from the broadcasting station can be obtained from the video signal resolution (video_resolution) of the video component descriptor corresponding to the MMT format described above with reference to FIGS.
  • the component descriptor having the data structure shown in FIG. 20A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • Step S43 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • step S41 the receiving device 20 receives the information acquired from the MMT package table (MPT) or event information table (MH-EIT) corresponding to the MMT format, specifically, the video component descriptor shown in FIG. It is recorded as a component descriptor of the corresponding program information recording table (MH-SIT).
  • the component descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the component descriptor having the data configuration shown in FIG. 20B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Video signal transfer characteristics video_rtransfer_characteristics
  • FIG. 23 shows a recording example of content descriptors in the program information recording table (MH-SIT, SIT) generated as a result of the processing steps S51 to S53 executed by the receiving device 20.
  • step S51 and step S52 are executed.
  • a content descriptor having the data structure shown in FIG. 23A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S51 and step S53 are executed.
  • a content descriptor having the data structure shown in FIG. 23B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S51 First, in step S51, the receiving device 20 acquires an event information table (MH-EIT) from control information (SI) of MMT format data received from the broadcast station 11, and from this event information table (MH-EIT) Information corresponding to the content descriptor recorded in the information recording table (MH-SIT, SIT (selection information table)) is acquired.
  • MH-EIT event information table
  • SI control information
  • MH-EIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the receiving device 20 acquires information corresponding to the content descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, information such as program genre information is acquired.
  • Step S52 The process of step S52 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 records the content descriptor in the MPEG2-TS compatible program information recording table (SIT) using the information acquired from the MMT format compatible event information table (MH-EIT) in step S51. To do.
  • the content descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the content descriptor having the data structure shown in FIG. 23A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • descriptor tag 0x54 is recorded.
  • the values corresponding to the program genre recorded in the data areas (a) to (d) are defined in MPEG2-TS.
  • the event information table (MH) corresponding to the MMT format in step S51.
  • -A value code information based on the genre information obtained from (EIT) is recorded.
  • Step S53 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving device 20 records the content descriptor in the MMT compatible program information recording table (MH-SIT) using the information acquired from the MMT format compatible event information table (MH-EIT) in step S51.
  • the content descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the content descriptor having the data structure shown in FIG. 23B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0x8012 is recorded
  • the genre information of the program is (A) Content nibble level 1 (content_nibble_level_1)
  • Descriptor tag 0x8012 is a tag used as a content descriptor tag in the MMT format.
  • the program genre information is recorded using the information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S51.
  • FIG. 24 shows a recording example of parental rate descriptors in the program information recording table (MH-SIT, SIT) generated as a result of the processing steps S61 to S63 executed by the receiving device 20. Yes.
  • step S61 and step S62 are executed.
  • a parental rate descriptor having the data structure shown in FIG. 24A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S61 and step S63 are executed.
  • a parental rate descriptor having the data structure shown in FIG. 24B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S61 the receiving device 20 acquires the MMT package table (MPT) or the event information table (MH-EIT) from the control information (SI) of the MMT format data received from the broadcast station 11, and this MMT package table
  • MMT MMT package table
  • SI control information
  • MH-EIT selection information table
  • the MMT package table is a table included in the MMT control information (MMT-SI), and is an asset (image) that is a component of a content (program etc.) package. , Audio, subtitles, etc.) and a table in which package configuration information such as position is recorded.
  • the MH-EIT event information table
  • MMT-SI MMT control information
  • content-related information such as the name of the content (program, etc.), broadcast date and time, and description of the content. .
  • the receiving device 20 corresponds to the parental rate descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the MMT package table (MPT) or the event information table (MH-EIT). Get information to do. Specifically, information such as program viewing age restriction information is acquired.
  • Step S62 The process of step S62 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 uses the information acquired from the MMT package table (MPT) corresponding to the MMT format or the event information table (MH-EIT) in step S61, and the program information recording table (for MPEG2-TS) ( Record the parental rate descriptor in SIT).
  • MPT MMT package table
  • MH-EIT event information table
  • MPEG2-TS program information recording table
  • the parental rate descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the parental rate descriptor having the data structure shown in FIG. 24A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • descriptor tag 0x55 is recorded.
  • Descriptor tag 0x55 is a tag used as a parental rate descriptor tag in the conventional MPEG2-TS compatible SIT.
  • a country code (0x6A706E) indicating Japan is recorded in the country code (country_code).
  • Step S63 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving device 20 uses the information acquired from the MMT package table (MPT) corresponding to the MMT format or the event information table (MH-EIT) in step S61, and the program information recording table (MH-) corresponding to the MMT. Record the parental rate descriptor in SIT). Note that the parental rate descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the parental rate descriptor having the data structure shown in FIG. 24B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0x8013 is recorded.
  • Descriptor tag 0x8013 is a tag used as a parental rate descriptor tag in the MMT format.
  • a country code (0x6A706E) indicating Japan is recorded in the country code (country_code).
  • Audio Component Descriptor Corresponding Information Acquisition and Recording Process Next, referring to FIG. 25 and subsequent figures, an audio component descriptor corresponding information acquisition process from MMT format data received from a broadcasting station, and MMT compatible program information An audio component descriptor recording process for the recording table (MH-SIT) and the MPEG-2TS compatible program information recording table (SIT) will be described. As described above with reference to FIG. 4, information such as type and description regarding the audio component is recorded in the audio component descriptor. As shown in FIG. 9, the descriptor corresponding to the audio component descriptor is recorded in the MMT package table (MPT) and the event information table (MH-EIT) defined in the MMT format.
  • MPT MMT package table
  • MH-EIT event information table
  • FIG. 25 shows processing steps S71 to S73 executed by the receiving apparatus 20, and FIG. 26 shows a recording example of the audio component descriptor in the program information recording table (MH-SIT, SIT) generated as a result of these processes. ing.
  • step S71 and step S72 are executed.
  • an audio component descriptor having the data structure shown in FIG. 26A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • step S71 and step S73 are executed.
  • an audio component descriptor having the data structure shown in FIG. 26B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Step S71 the receiving device 20 acquires the MMT package table (MPT) or the event information table (MH-EIT) from the control information (SI) of the MMT format data received from the broadcast station 11, and acquires the acquired MMT package.
  • Information corresponding to the audio component descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) is acquired from the table (MPT) or the event information table (MH-EIT).
  • the MMT package table is a table included in the MMT control information (MMT-SI), and is an asset (image) that is a component of a content (program etc.) package. , Audio, subtitles, etc.) and a table in which package configuration information such as position is recorded.
  • the MH-EIT event information table
  • MMT-SI MMT control information
  • content-related information such as the name of the content (program, etc.), broadcast date and time, and description of the content. .
  • the receiving device 20 corresponds to the audio component descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the MMT package table (MPT) or the event information table (MH-EIT). Get information.
  • MH-SIT selection information table
  • MPT MMT package table
  • MH-EIT event information table
  • FIG. 27 shows the data structure of the audio component descriptor recorded in the MMT package table (MPT) and the event information table (MH-EIT). As shown in FIG. 27, the following information is included in the audio component descriptor recorded in the MPT and MH-EIT of the MMT format.
  • (1d) Voice quality identifier (quality_indicator)
  • FIG. 28 shows an example of set values of (1a) stream content information (stream_content).
  • FIG. 29 is an example of setting values of (1b) component type information (component_type).
  • FIG. 30 is an example of a set value of (1e) sampling rate (sampling_rate). These are values (codes) defined in the MMT, and other setting values of the information (1a) to (1d) are defined in the MMT.
  • the reception apparatus 20 acquires an audio component descriptor having the data configuration illustrated in FIG. 27 from the MMT package table (MPT) or the event information table (MH-EIT).
  • MPT MMT package table
  • MH-EIT event information table
  • Step S72 The process of step S72 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 receives the audio component descriptor acquired from the MMT package table (MPT) or the event information table (MH-EIT) corresponding to the MMT format in step S71, that is, the audio having the data configuration shown in FIG.
  • the recording information of the component descriptor is used and recorded as it is as the recording information of the audio component descriptor corresponding to MPEG2-TS.
  • the recording area of the audio component descriptor is a second descriptor loop (service information descriptor loop).
  • FIG. 26A shows the data structure of the audio component descriptor of the MPEG2-TS compatible program information recording table (SIT).
  • descriptor tag 0xC4 is recorded, and further, (1a) Stream content information (stream_content) (1b) Component type information (component_type) (1c) Stream type information (stream_type) (1d) Voice quality identifier (quality_indicator) (1e) Sampling rate (sampling_rate) Record these values.
  • Step S73 is a process executed when the receiving device 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • step S71 the receiving apparatus 20 directly receives the information acquired from the MMT package table (MPT) or the event information table (MH-EIT) corresponding to the MMT format, specifically, the audio component descriptor shown in FIG. It is recorded as an audio component descriptor of the corresponding program information recording table (MH-SIT). Note that the recording area of the audio component descriptor is a second descriptor loop (service information descriptor loop).
  • the audio component descriptor having the data structure shown in FIG. 26B is recorded in the MMT compatible program information recording table (MH-SIT).
  • the hyperlink descriptor contains information such as links to other programs, the inside of the program, and program related information. To be recorded. Also, as shown in FIG. 9, the descriptor corresponding to the hyperlink descriptor is not recorded in the MMT format stipulated table.
  • the hyperlink descriptor Since the information corresponding to this hyperlink descriptor is not defined in the current MMT format data, the hyperlink descriptor corresponding information acquisition processing from the MMT format data received from the broadcasting station, and the MMT compatible program information The hyperlink descriptor recording process is not executed for the recording table (MH-SIT) and the MPEG-2TS compatible program information recording table (SIT).
  • the MMT compatible program information recording table (MH-SIT) and the MPEG-2TS compatible program information recording table (SIT) record only formal information such as descriptor tags of hyperlink descriptors.
  • a configuration in which information is not recorded, or formal information such as a descriptor tag of a hyperlink descriptor may be set not to be recorded.
  • FIG. 31 shows recording examples of processing steps S91 to S93 executed by the receiving apparatus 20 and data content descriptors in the program information recording table (MH-SIT) generated as a result of these processes.
  • the program corresponding to MPEG2-TS In the information recording table (SIT), the recording process of the data content descriptor based on the information acquired from the MMT format data received from the broadcasting station is not performed.
  • the receiving device 20 when the receiving device 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the processing of steps S91 and S93 is executed. As a result of this processing, a data content descriptor having the data structure shown in FIG. 31B is recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT compatible program information recording table
  • Step S91 the receiving device 20 acquires an MMT package table (MPT) from control information (SI) of MMT format data received from the broadcast station 11, and from this MMT package table (MPT), a program information recording table ( Information corresponding to the data content descriptor recorded in the MH-SIT (selection information table) is acquired.
  • MPT MMT package table
  • SI control information
  • MPT MPT
  • Program information recording table Information corresponding to the data content descriptor recorded in the MH-SIT (selection information table) is acquired.
  • the MMT package table is a table included in the MMT control information (MMT-SI), and is an asset (image) that is a component of a content (program etc.) package. , Audio, subtitles, etc.) and a table in which package configuration information such as position is recorded.
  • the receiving device 20 acquires information corresponding to the data content descriptor recorded in the program information recording table (MH-SIT (selection information table)) from the MMT package table (MPT). Specifically, detailed information regarding the data content is acquired.
  • MH-SIT selection information table
  • FIG. 32 shows an example of a part of detailed information regarding data contents that can be acquired from the MMT package table (MPT).
  • the example shown in FIG. 32 is an example of information related to a caption of a program.
  • various content (program) related detailed information corresponding to the data content descriptor is recorded. Is obtained from the MMT package table (MPT).
  • Step S92 The process of step S92 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the MPEG2-TS compatible program is used.
  • the recording process of the data content descriptor based on the information acquired from the MMT format data received from the broadcasting station is not performed.
  • the receiving device 20 records only the formal information such as the descriptor tag of the data content descriptor in the MPEG-2TS compatible program information recording table (SIT), or does not record the entity information, or data Any processing that does not record formal information such as a descriptor tag of the content descriptor is performed.
  • the formal information such as the descriptor tag of the data content descriptor in the MPEG-2TS compatible program information recording table (SIT)
  • SIT MPEG-2TS compatible program information recording table
  • Step S93 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving apparatus 20 records the data content descriptor in the MMT compatible program information recording table (MH-SIT) using the information acquired from the MMT format compatible MMT package table (MPT) in step S91.
  • the data content descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the data content descriptor having the data configuration shown in FIG. 31B is recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT compatible program information recording table
  • the information acquired from the MMT package table (MPT) in step S91 is recorded in the additional data component information (additional_data_component_info) recording area.
  • FIG. 33 shows processing examples S101 to S103 executed by the receiving apparatus 20, and a recording example of the staff descriptor in the program information recording table (MH-SIT) generated as a result of these processes.
  • the stuff descriptor is used to secure a predetermined descriptor recording space. For example, when a surplus area other than the effective information recording area is generated, a stuffing byte as dummy data, for example, [0000... .] Is an area for recording stuffing bytes.
  • This process is executed only when it is necessary to adjust the descriptor recording area and packet size, such as when the data of the MH-EIT storage packet is overwritten with MH-SIT. In other cases, this staff description No child record is required.
  • Step S101 the receiving device 20 performs a process of calculating the number of adjustment bytes (stuffing bytes) when the descriptor recording area and the packet size of the MMT-compatible MH-SIT storage packet (MMT packet) need to be adjusted.
  • Step S102 The process of step S102 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on MMT format data received from a broadcasting station.
  • SIT program information recording table
  • the stuff descriptor recording is necessary only when the descriptor recording area or the packet size needs to be adjusted, such as when “overwrite the data of the MH-EIT storage packet with MH-SIT”. This is an unnecessary process when a program information recording table (SIT) compatible with MPEG2-TS is generated.
  • SIT program information recording table
  • the staff descriptor recording process is not performed in the program information recording table (SIT) compatible with MPEG2-TS.
  • the receiving apparatus 20 records only the formal information such as the descriptor tag of the staff descriptor in the MPEG-2TS compatible program information recording table (SIT), or does not record the entity information, or the staff description. Any processing that does not record formal information such as a child descriptor tag is performed.
  • Step S103 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving device 20 adds a stuff descriptor including the stuffing bytes of the adjusted number of bytes calculated in step S101 to at least one of the first loop and the second loop of the MMT compatible program information recording table (MH-SIT). Record.
  • the staff descriptor having the data structure shown in FIG. 33B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0xFC00 is recorded.
  • 0x800B, 0x800E-F, 0x8022, 0x8043-0xEBFF, 0xEC00-0xEFFF, 0xF004-0xFBFF, and 0xFC00-0xFFFF are in a reserved (empty) state as descriptor tags in the MMT format.
  • stuffing byte of the number of adjustment bytes calculated in step S101 is recorded in the stuffing byte (stuffing_byte) recording area.
  • the partial transport stream descriptor includes partial TS stream information such as maximum bit rate information. Is recorded. Also, as shown in FIG. 9, the descriptor corresponding to the partial transport stream descriptor is not recorded in the MMT format specification table.
  • the acquisition process of the partial transport stream descriptor correspondence information from the MMT format data received from the broadcasting station, and the MMT correspondence It is set so that the recording process of the partial transport stream descriptor for the program information recording table (MH-SIT) and the MPEG-2TS compatible program information recording table (SIT) is not executed.
  • MH-SIT program information recording table
  • SIT MPEG-2TS compatible program information recording table
  • the receiving device 20 calculates the maximum bit rate information of the data stored in the generated TS packet sequence and converts the calculated value to MPEG Processing for recording in a partial transport stream descriptor of a program information recording table (SIT) compatible with -2TS may be performed.
  • SIT program information recording table
  • only the formal information such as the descriptor tag of the partial transport stream descriptor is recorded and the entity information is not recorded, or the formal information such as the descriptor tag of the partial transport stream descriptor is not recorded. May be performed.
  • FIG. 34 shows processing steps S121 to S123 executed by the receiving apparatus 20, and FIG. 35 shows event group descriptors in the program information recording table (MH-SIT, SIT) generated as a result of these processing.
  • MH-SIT, SIT program information recording table
  • step S121 and step S122 are executed.
  • an event group descriptor having the data structure shown in FIG. 35A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • the receiving device 20 when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcast station, the processing of steps S121 and S123 is executed. As a result of this processing, an event group descriptor having the data structure shown in FIG. 35B is recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT-compatible program information recording table
  • Step S121 the receiving device 20 acquires an event information table (MH-EIT) from control information (SI) of MMT format data received from the broadcast station 11, and from this event information table (MH-EIT), a program is acquired. Information corresponding to the event group descriptor recorded in the information recording table (MH-SIT, SIT (selection information table)) is acquired.
  • MH-EIT event information table
  • SI control information
  • MH-EIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the receiving device 20 acquires information corresponding to the event group descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT).
  • This event group descriptor setting is common to each format of MMT and MPEG2-TS.
  • Step S122 The process of step S122 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcasting station.
  • SIT program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) compatible with the MMT format in step S121, and sets the event group descriptor in the program information recording table (SIT) compatible with MPEG2-TS. Record.
  • the event group descriptor recording area is a second descriptor loop (service information descriptor loop).
  • an event group descriptor having the data structure shown in FIG. 35A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • Information such as a service ID and an event ID related to the event group is information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S121.
  • Step S123 is a process executed when the receiving device 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving apparatus 20 uses the information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S121, and stores the event group descriptor in the program information recording table (MH-SIT) compatible with MMT. Record.
  • the event group descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the event group descriptor having the data configuration shown in FIG. 35B is recorded in the MMT compatible program information recording table (MH-SIT).
  • Information such as a service ID and an event ID related to the event group is information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S121.
  • FIG. 36 shows recording examples of processing steps S131 to S133 executed by the receiving apparatus 20 and broadcaster name descriptors in the program information recording table (MH-SIT, SIT) generated as a result of these processes. Yes.
  • step S131 and step S132 are executed.
  • a broadcaster name descriptor having the data structure shown in FIG. 36A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • the receiving device 20 when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcast station, the processing of steps S131 and S133 is executed. As a result of this processing, a broadcaster name descriptor having the data structure shown in FIG. 36B is recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT-compatible program information recording table
  • Step S131 the receiving apparatus 20 acquires a broadcaster information table (MH-BIT) from the control information (SI) of MMT format data received from the broadcast station 11, and from this broadcaster information table (MH-BIT).
  • MH-SIT selection information table
  • the broadcaster information table (MH-BIT) is a table included in the MMT control information (MMT-SI), and is a table in which information on broadcasters on the network is recorded. It is.
  • the receiving device 20 acquires information corresponding to the broadcaster name descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the broadcaster information table (MH-BIT). Specifically, information such as a broadcaster name (broadcasting station name) is acquired.
  • Step S132 The process of step S132 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving apparatus 20 uses the information acquired from the broadcast information table (MH-BIT) corresponding to the MMT format in step S131 to describe the broadcaster name in the program information recording table (SIT) compatible with MPEG2-TS. Record the child.
  • the recording area of the broadcaster name descriptor is a second descriptor loop (service information descriptor loop).
  • the broadcaster name descriptor having the data structure shown in FIG. 36A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • Information such as the broadcaster name (broadcast station name) is information acquired from the broadcaster information table (MH-BIT) corresponding to the MMT format in step S131.
  • Step S133 is a process executed when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT program information recording table
  • the receiving device 20 uses the information acquired from the broadcast information table (MH-BIT) corresponding to the MMT format in step S131 to describe the broadcaster name in the program information recording table (MH-SIT) compatible with MMT. Record the child.
  • the recording area of the broadcaster name descriptor is a second descriptor loop (service information descriptor loop).
  • the broadcaster name descriptor having the data structure shown in FIG. 36B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0x8018 is recorded, and further information such as the broadcaster name (broadcasting station name) is recorded.
  • Descriptor tag 0x8018 is a tag used as a broadcaster name descriptor tag in the MMT format.
  • Information such as the broadcaster name (broadcast station name) is information acquired from the broadcaster information table (MH-BIT) corresponding to the MMT format in step S131.
  • the component group descriptor Since the information corresponding to this component group descriptor is not defined in the current MMT format data, the component group descriptor corresponding information acquisition process from the MMT format data received from the broadcasting station, and the MMT compatible program information It is set so that the recording process of the component group descriptor is not executed for the recording table (MH-SIT) and the MPEG-2TS compatible program information recording table (SIT).
  • MH-SIT MMT compatible program information recording table
  • SIT MPEG-2TS compatible program information recording table
  • FIG. 37 shows processing steps S151 to S153 executed by the receiving apparatus 20, and FIG. 38 shows recording of series descriptors in the program information recording table (MH-SIT, SIT) generated as a result of these processing. An example is shown.
  • step S151 and step S152 are executed.
  • a series descriptor having the data structure shown in FIG. 38A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • the receiving apparatus 20 when the receiving apparatus 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the processes of steps S151 and S153 are executed. As a result of this processing, a series descriptor having the data structure shown in FIG. 38B is recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT-compatible program information recording table
  • Step S151 First, in step S151, the receiving device 20 acquires an event information table (MH-EIT) from control information (SI) of MMT format data received from the broadcast station 11, and from this event information table (MH-EIT) Information corresponding to the series descriptor recorded in the information recording table (MH-SIT, SIT (selection information table)) is acquired.
  • MH-EIT event information table
  • SI control information
  • MH-EIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the receiving device 20 acquires information corresponding to the series descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) from the event information table (MH-EIT). Specifically, series information and the like across multiple events are acquired. This series descriptor setting is common to each format of MMT and MPEG2-TS.
  • Step S152 The process of step S152 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving apparatus 20 records the series descriptor in the MPEG2-TS compatible program information recording table (SIT) using the information acquired from the MMT format compatible event information table (MH-EIT) in step S151.
  • the series descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the series descriptor having the data structure shown in FIG. 38A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • As series information across multiple events a series ID, the number of rebroadcasts, a program pattern, a series name, and the like are recorded.
  • values corresponding to the information shown in the lower part of FIG. 38 are recorded. These pieces of information are information acquired from the event information table (MH-EIT) corresponding to the MMT format in step S151.
  • Step S153 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the receiving device 20 records the series descriptor in the MMT compatible program information recording table (MH-SIT) using the information acquired from the MMT format compatible event information table (MH-EIT) in step S151.
  • the series descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the series descriptor having the data configuration shown in FIG. 38B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0x8016 is recorded, and further information such as series information over a plurality of events is recorded.
  • the recording information of the series information extending over a plurality of events is the same information as MPEG2-TS, and is information obtained from the event information table (MH-EIT) corresponding to the MMT format.
  • FIG. 39 shows recording examples of processing steps S161 to S163 executed by the receiving apparatus 20 and network identification descriptors in the program information recording table (SIT) generated as a result of these processes.
  • the network identification descriptor is network information of the generation source of the partial TS (transport stream), and is information necessary when transmitting a TS packet sequence according to the MPEG2-TS format. . This is unnecessary information when data composed of an MMT packet sequence according to the MMT format is transmitted.
  • the receiving apparatus 20 when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcasting station, the processing of steps S161 and S162 is executed, and MPEG2-TS is executed.
  • SIT program information recording table
  • a network identification descriptor having the data structure shown in FIG. 39A is recorded in the TS-compatible program information recording table (SIT).
  • the receiving device 20 when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the processing of steps S161 and S163 is executed. In this case, the network identification descriptor is not recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT-compatible program information recording table
  • Step S161 First, in step S161, the receiving device 20 acquires the event information table (MH-EIT) from the control information (SI) of the MMT format data received from the broadcast station 11, and from this event information table (MH-EIT) Information corresponding to the network identification descriptor recorded in the information recording table (SIT (selection information table)) is acquired.
  • MH-EIT event information table
  • SI control information
  • SIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the receiving device 20 acquires information corresponding to the network identification descriptor recorded in the program information recording table (SIT (selection information table)) from the event information table (MH-EIT). Specifically, information such as network information of the generation source of the partial TS (transport stream) is acquired.
  • SIT selection information table
  • Step S162 The process of step S162 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) compatible with the MMT format in step S161 to add a network identification descriptor to the program information recording table (SIT) compatible with MPEG2-TS. Record.
  • the recording area of the network identification descriptor is a first descriptor loop (transmission information descriptor loop).
  • the network identification descriptor having the data configuration shown in FIG. 39A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • descriptor tag 0xC2 is recorded.
  • Descriptor tag 0xC2 is a tag used as a network identification descriptor tag in the conventional MPEG2-TS compatible SIT.
  • country_code country_code
  • media_type media_type
  • network_id network_id
  • the country code (country_code) is based on the language code (ISO_639_language_code) recorded in the MH-short format event descriptor of the event information table (MH-EIT) corresponding to the MMT format shown in FIG. Record the country code shown.
  • the media type (media_type) is obtained by acquiring information recorded in the service list descriptor of the MH-EIT (MH event information table) stipulated in the MMT format shown in FIG. 40 (2) or the service type information of the service descriptor. Record.
  • the original network ID (original_network_id) recorded in the MH-EIT (event information table) defined in the MMT format shown in FIG. 40 (3) is acquired and recorded.
  • Step S163 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the network identification descriptor is network information of a generation source of a partial TS (transport stream), and is information necessary for transmitting a TS packet sequence according to the MPEG2-TS format. This is unnecessary information when data composed of an MMT packet sequence according to the MMT format is transmitted.
  • the receiving apparatus 20 when the receiving apparatus 20 generates the MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the MMT compatible program information recording table (MH-SIT) Does not record network identification descriptors.
  • the same descriptor as the partial transport stream time descriptor is not set in the MMT format stipulated table, but the same data as the actual data of the partial transport stream time descriptor can be obtained from each table.
  • FIG. 41 shows processing steps S171 to S173 executed by the receiving apparatus 20, and a recording example of the partial transport stream time descriptor in the program information recording table (SIT) generated as a result of these processing.
  • the partial transport stream time descriptor is generation time information of a partial TS (transport stream), and is information necessary when transmitting a TS packet sequence according to the MPEG2-TS format. is there. This is unnecessary information when data composed of an MMT packet sequence according to the MMT format is transmitted.
  • the receiving apparatus 20 when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station, the processing of steps S171 and S172 is executed, and MPEG2-TS is executed.
  • SIT program information recording table
  • a partial transport stream time descriptor having the data structure shown in FIG. 41A is recorded in the TS-compatible program information recording table (SIT).
  • the receiving device 20 when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the processing of steps S171 and S173 is executed. In this case, the partial transport stream time descriptor is not recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT-compatible program information recording table
  • Step S171 First, in step S171, the receiving device 20 acquires the event information table (MH-EIT) and the time offset table (MH-TOT) from the control information (SI) of the MMT format data received from the broadcast station 11, and these Information corresponding to the partial transport stream time descriptor recorded in the program information recording table (SIT (selection information table)) is acquired from the event information table (MH-EIT) and the time offset table (MH-TOT).
  • SI control information
  • SIT selection information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the time offset table (MH-TOT) is a table included in the MMT control information (MMT-SI), and is a table in which date / time related information such as current date and time information is recorded.
  • the receiving device 20 corresponds to the partial transport stream time descriptor recorded in the program information recording table (SIT (selection information table)) from the event information table (MH-EIT) and the time offset table (MH-TOT). Get information to do. Specifically, the generation time information of the partial TS (transport stream) is acquired.
  • SIT selection information table
  • MH-EIT event information table
  • MH-TOT time offset table
  • Step S172 The process of step S172 is a process executed when the receiving apparatus 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on MMT format data received from the broadcasting station.
  • SIT program information recording table
  • the receiving apparatus 20 uses the information acquired from the event information table (MH-EIT) and the time offset table (MH-TOT) corresponding to the MMT format in step S171, and the program information recording table corresponding to MPEG2-TS.
  • the partial transport stream time descriptor is recorded in (SIT).
  • the recording area of the partial transport stream time descriptor is a first descriptor loop (transmission information descriptor loop) or a second descriptor loop (service information descriptor loop).
  • the partial transport stream time descriptor having the data structure shown in FIG. 41A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • descriptor tag 0xC3 is recorded.
  • Descriptor tag 0xC3 is a tag used as a partial transport stream time descriptor tag in the conventional MPEG2-TS compatible SIT.
  • information such as the event version (event_version_number), the event start time (event_start_time), and the event duration (Duration) is recorded. Furthermore, the offset (Offset) indicating the time difference of daylight saving time, the offset flag (offset_flag) indicating that the time before the offset time (0) is after (1), the change status (other_descriptor_status) of another SIT descriptor (descriptor), etc. To do. These are information acquired from the event information table (MH-EIT) and the time offset table (MH-TOT) corresponding to the MMT format in step S171.
  • MH-EIT event information table
  • MH-TOT time offset table
  • Event_version_number event version
  • event start time event start time
  • event_start_time event duration
  • MH-EIT event information table
  • Offset indicating the time difference of daylight saving time
  • offset flag offset_flag
  • offset_flag offset (time difference) information recorded in the time offset table (MH-TOT) defined in the MMT format shown in FIG. (Local_time_offset etc.) is acquired and recorded.
  • the change status (other_descriptor_status) of another SIT descriptor (descriptor) obtains (e) time information (JST_time) recorded in the time offset table (MH-TOT) defined in the MMT format shown in FIG. And record.
  • Step S173 is a process executed when the receiving apparatus 20 generates an MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station.
  • MH-SIT MMT compatible program information recording table
  • the partial transport stream time descriptor is generation time information of a partial TS (transport stream), and is information necessary when transmitting a TS packet sequence according to the MPEG2-TS format. This is unnecessary information when data composed of an MMT packet sequence according to the MMT format is transmitted.
  • the receiving apparatus 20 when the receiving apparatus 20 generates the MMT compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the MMT compatible program information recording table (MH-SIT) Does not record the partial transport stream time descriptor.
  • the broadcast ID descriptor records information such as various IDs at the time of broadcasting necessary for data broadcast reproduction. Also, as shown in FIG. 9, the descriptor corresponding to the broadcast ID descriptor is not recorded in the MMT format stipulated table. Although there is no descriptor that is the same as the broadcast ID descriptor in the MMT format stipulated table, data similar to the entity data in the broadcast ID descriptor can be obtained from each table.
  • FIG. 43 shows recording examples of processing steps S181 to S183 executed by the receiving apparatus 20 and broadcast ID descriptors in the program information recording table (MH-SIT, SIT) generated as a result of these processes. .
  • step S181 and step S182 are executed.
  • a broadcast ID descriptor having the data structure shown in FIG. 43A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • the receiving device 20 when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcasting station, the processing of steps S181 and S183 is executed. As a result of this processing, a broadcast ID descriptor having the data structure shown in FIG. 43B is recorded in the MMT compatible program information recording table (MH-SIT).
  • MH-SIT MMT-compatible program information recording table
  • Step S181 First, in step S181, the receiving apparatus 20 acquires an event information table (MH-EIT) and a broadcaster information table (MH-BIT) from the control information (SI) of MMT format data received from the broadcast station 11, and this Information corresponding to the broadcast ID descriptor recorded in the program information recording table (MH-SIT, SIT (selection information table)) is acquired from the event information table (MH-EIT) and broadcaster information table (MH-BIT). To do.
  • MH-EIT event information table
  • MH-BIT broadcaster information table
  • the MH-EIT (event information table) is a table included in the MMT control information (MMT-SI), and the name, broadcast date, and content of the content (program etc.) It is a table in which content-related information such as explanations is recorded.
  • the MH-BIT (Broadcaster Information Table) is a table included in the MMT control information (MMT-SI), and is a table in which information on broadcasters on the network is recorded.
  • the receiving apparatus 20 broadcasts from the event information table (MH-EIT) and the broadcaster information table (MH-BIT) to the broadcast information descriptor table (MH-SIT, SIT (selection information table)). Get information corresponding to. Specifically, information such as information such as various IDs at the time of broadcasting necessary for reproduction of data broadcasting is acquired.
  • Step S182 The process of step S182 is a process executed when the receiving device 20 generates a program information recording table (SIT) compatible with MPEG2-TS based on the MMT format data received from the broadcast station.
  • SIT program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) corresponding to the MMT format and the broadcaster information table (MH-BIT) in step S181, and the program information corresponding to MPEG2-TS.
  • a broadcast ID descriptor is recorded in a recording table (SIT).
  • the broadcast ID descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the broadcast ID descriptor having the data structure shown in FIG. 43A is recorded in the program information recording table (SIT) compatible with MPEG2-TS.
  • descriptor tag 0x85 is recorded, and further, the original network ID (original_network_id), TLV stream ID (tlv_stream_id), event ID (event_id), broadcaster ID (broadcaster_id) ) Etc. are recorded.
  • the information such as the original network ID (original_network_id), TLV stream ID (tlv_stream_id), event ID (event_id), broadcaster ID (broadcaster_id), etc. is the event information table (MH-EIT) corresponding to the MMT format and the broadcaster in step S181. Information acquired from the information table (MH-BIT).
  • Step S183 is a process executed when the receiving device 20 generates an MMT-compatible program information recording table (MH-SIT) based on the MMT format data received from the broadcast station.
  • MH-SIT program information recording table
  • the receiving device 20 uses the information acquired from the event information table (MH-EIT) corresponding to the MMT format and the broadcaster information table (MH-BIT) in step S181, and the program information recording table corresponding to the MMT. Record the broadcast ID descriptor in (MH-SIT).
  • the broadcast ID descriptor recording area is a second descriptor loop (service information descriptor loop).
  • the broadcast ID descriptor having the data structure shown in FIG. 43B is recorded in the MMT compatible program information recording table (MH-SIT).
  • descriptor tag 0xFC01 is recorded, and further, the original network ID (original_network_id), TLV stream ID (tlv_stream_id), event ID (event_id), broadcaster ID (broadcaster_id). ) Etc. are recorded.
  • Descriptor tag 0xFC01 is a tag used as a broadcast ID descriptor tag in the MMT format.
  • the information such as the original network ID (original_network_id), TLV stream ID (tlv_stream_id), event ID (event_id), broadcaster ID (broadcaster_id), etc. is the event information table (MH-EIT) corresponding to the MMT format and the broadcaster in step S181. Information acquired from the information table (MH-BIT).
  • the original network ID (original_network_id) is acquired and recorded (a) the original network ID (original_network_id) recorded in the event information table (MH-EIT) corresponding to the MMT format shown in FIG.
  • MH-EIT event information table
  • TLV stream ID (tlv_stream_id) and the event ID (event_id) are recorded in the event information table (MH-EIT) corresponding to the MMT format shown in FIG. 44 (1)
  • MH-EIT event information table
  • Broadcaster ID acquires and records (d) broadcaster ID (broadcaster_id) recorded in the broadcaster information table (MH-BIT) corresponding to the MMT format shown in FIG. 44 (2).
  • the receiving device 20 inputs data according to the MMT format from the broadcast station 11 and executes the following process 1 or process 2.
  • Process 1 or process 2 Generate MMT format data composed of an MMT packet sequence, generate a program information recording table (MH-SIT), store it in the MMT packet, and transmit it to the network connection device 30.
  • Process 2 Convert MMT format to MPEG2-TS format to generate MPEG-2TS format data composed of TS packet sequences, and generate program information recording table (SIT) and store in MPEG2-TS packet To the network connection device 30.
  • MH-SIT program information recording table
  • FIG. 45 is a diagram illustrating a configuration of an information processing device 400 corresponding to the reception device 20.
  • the data input unit 401 stores MMT format data 431, that is, image data, audio data, and various tables (MPT, MH-EIT, MH-BIT, MH-SDT, MH-TOT, etc.) as control information (SI).
  • the included MMT format data 431 is input.
  • the data input unit 401 is a receiving unit that transmits MMT format data 431, for example, a receiving unit that receives transmission data from a broadcasting station, a content server, or the like, or a media reading unit that executes data reading from a medium that records the MMT format data 431 Composed of etc.
  • the MMT format data 431 input from the data input unit 401 is data in accordance with the data format described above with reference to FIG. 2, and includes high-definition image data such as HEVC images, for example.
  • the MMT format data 431 is stored in the storage unit 404 under the control of the control unit 403.
  • the user input unit 402 inputs, for example, a data transmission start request to the network connection device.
  • MMT format data 431 stored in the storage unit 404 is input to the demultiplexer (DeMUX) 405 using this input as a trigger.
  • the demultiplexer (DeMUX) 405 acquires, from the MMT format data 431, control information (TLV-SI, MMT-SI) including packets storing data such as images, audio, and captions, and the various tables described above.
  • the packets are classified into data type packets, and each packet is input to the caption data generation unit 411, the image data generation unit 412, the audio data generation unit 413, and the control information analysis unit 414 of the data processing unit 406 according to the data type.
  • the subtitle data generation unit 411 acquires subtitle data from the MMT format data 331 input by the data input unit 401 and stored in the storage unit 404, and generates stream file storage data defined in the BDAV format.
  • the image data generation unit 412 acquires image data from the MMT format data 331 input by the data input unit 401 and stored in the storage unit 404, and generates stream file storage data defined in the BDAV format.
  • the audio data generation unit 413 obtains audio data from the MMT format data 431 input by the data input unit 401 and stored in the storage unit 404, and generates stream file storage data defined in the BDAV format.
  • the control information analysis unit 414 receives control information (TLV-SI, MMT) including notification information, reproduction control information, copy control information, and the like from the MMT format data 431 input by the data input unit 401 and stored in the storage unit 404. -Control information such as SI) is acquired.
  • the program information recording table generation unit 416 receives control information (SI) included in the MMT format data from the control information analysis unit 414, that is, a plurality of various tables (MPT, MH-EIT, MH-BIT, MH-SDT, MH). -TOT etc.) is input, and a program information recording table (MH-SIT, SIT) is generated.
  • SI control information
  • a program information recording table (MH-SIT) corresponding to the MMT format is generated.
  • MH-SIT program information recording table
  • SIT program information recording table
  • the multiplexer (MUX) 415 is a subtitle data generation unit 411, an image data generation unit 412, subtitle, image, and audio data converted by the audio data generation unit 413, and a control information analysis unit 414 controls the control information (MMT format data 331).
  • the packet sequence generated here is MMT format data configured by an MMT packet sequence, or Any one of MPEG2-TS format data composed of a TS packet sequence.
  • the MMT format data constituted by the MMT packet sequence includes an MMT packet storing a program information recording table (MH-SIT) corresponding to the MMT format.
  • the MPEG2-TS format data constituted by the TS packet sequence includes a TS packet storing a program information recording table (SIT) corresponding to the MPEG2-TS format.
  • the transmission data 432 generated by the data processing unit 406 is transmitted to the network connection device via the communication unit 407 under the control of the control unit 403.
  • the processing according to the flow shown in FIG. 46 can be executed under the control of a data processing unit (control unit) including a CPU having a program execution function, for example, according to a program stored in the storage unit of the information processing apparatus. it can.
  • a data processing unit control unit
  • CPU central processing unit
  • program execution function for example, according to a program stored in the storage unit of the information processing apparatus.
  • Step S201 First, the information processing apparatus 400 inputs MMT format data via the data input unit 401 in step S201.
  • This data includes image data, audio data, caption data, and control information (TLV-SI, MMT-SI) storing notification information and control information.
  • the control information includes a plurality of various tables (MPT, MH-EIT, MH-BIT, MH-SDT, MH-TOT, etc.) in which program information is recorded.
  • step S202 the information processing apparatus 400 performs demultiplex processing of the input MMT format data, that is, data separation processing in units of data types. Separation processing of image, sound, caption, control information, etc. is executed.
  • step S203 the information processing apparatus 400 determines whether the transfer data to be transmitted to an external apparatus such as a network connection apparatus is MMT format data or MPEG2-TS format data. This determination is performed by, for example, prior communication with the transmission destination apparatus to check whether the transmission destination apparatus can process the MMT format data. If the transmission is possible, the transmission data is set to MMT format data and cannot be processed. In this case, it is performed by processing such as MPEG2-TS format data.
  • Step S204 If the transmission data is set to MMT format data, in step S204, the information processing apparatus 400 generates a program information recording table (MH-SIT) corresponding to the MMT format.
  • MH-SIT program information recording table
  • the program information recording table generation unit 416 of the data processing unit 406 shown in FIG. 45 has a plurality of various tables (MPT, MH-EIT, MH-BIT, MH-SDT, MH-TOT, etc.) included in the MMT format data. ) Is selected and acquired, and a program information recording table (MH-SIT) corresponding to the MMT format is generated.
  • MPT various tables
  • MH-EIT program information recording table
  • Step S205 the information processing apparatus 400 displays the MMT packet storing the program information recording table (MH-SIT) corresponding to the MMT format generated in step S204, the image constituting the transmission content, and the content data of the sound Muto.
  • An MMT packet sequence corresponding to the MMT format composed of the MMT packet storing the message is generated and transmitted via the network.
  • Step S206 On the other hand, when the transmission data is set to the MPEG2-TS format data in step S203, the information processing apparatus 400 generates a program information recording table (SIT) corresponding to the MPEG2-TS format in step S206.
  • SIT program information recording table
  • the program information recording table generation unit 416 of the data processing unit 406 shown in FIG. 45 has a plurality of various tables (MPT, MH-EIT, MH-BIT, MH-SDT, MH-TOT, etc.) included in the MMT format data.
  • the program information recording table (SIT) corresponding to the MPEG2-TS format is generated.
  • Step S207 the information processing apparatus 400 stores the TS packet storing the program information recording table (SIT) corresponding to the MPEG2-TS format generated in step S206, the image constituting the transmission content, and the content data of the sound Muto.
  • SIT program information recording table
  • step S205 or step S207 the MMT packet or TS packet transmitted from the information processing apparatus 400 is transmitted to the network connection apparatus.
  • the data processing unit of the network connection device that has received the MMT packet sequence or TS packet sequence obtains an MH-SIT stored packet or SIT stored packet in which program information is recorded based on the packet identifier from each packet sequence. It is possible to refer to and use the program information.
  • the data processing unit of the network connection apparatus can perform processing such as reading program information from the program information storage packet and displaying it on the display unit.
  • a CPU (Central Processing Unit) 601 functions as a data processing unit that executes various processes according to a program stored in a ROM (Read Only Memory) 602 or a storage unit 608. For example, processing according to the sequence described in the above-described embodiment is executed.
  • a RAM (Random Access Memory) 603 stores programs executed by the CPU 601 and data. These CPU 601, ROM 602, and RAM 603 are connected to each other by a bus 604.
  • the CPU 601 is connected to an input / output interface 605 via a bus 604, and an input unit 606 including various switches, a keyboard, a mouse, and a microphone, and an output unit 607 including a display and a speaker are connected to the input / output interface 605. Yes.
  • the CPU 601 executes various processes in response to commands input from the input unit 606 and outputs the processing results to the output unit 607, for example.
  • the storage unit 608 connected to the input / output interface 605 includes, for example, a hard disk and stores programs executed by the CPU 601 and various data.
  • the communication unit 609 functions as a data communication transmission / reception unit via a network such as the Internet or a local area network, and further as a broadcast wave transmission / reception unit, and communicates with an external device.
  • the drive 610 connected to the input / output interface 605 drives a removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory such as a memory card, and executes data recording or reading.
  • a removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory such as a memory card
  • the technology disclosed in this specification can take the following configurations.
  • An MMT (MPEG Media Transport) format data is input, and a data processing unit that generates transmission data to be transmitted to the network connection device is included.
  • the data processing unit An information processing apparatus that acquires program information corresponding to MMT format data included in input data, generates a program information recording table, and generates transmission data including a storage packet of the program information recording table.
  • the MMT format-defined control information recording table is: Event information table (MH-EIT), MMT package table (MMT), service description table (MH-SDT), broadcaster information table (MH-BIT), or time offset table (MH-TOT)
  • MH-EIT Event information table
  • MMT MMT package table
  • MH-SDT service description table
  • MH-BIT broadcaster information table
  • MH-TOT time offset table
  • the data processing unit The information processing apparatus according to any one of (1) to (3), wherein transmission data including an MMT packet sequence according to the MMT format or a TS packet sequence according to the MPEG2-TS format is generated.
  • the data processing unit When generating transmission data composed of a TS packet sequence according to the MPEG2-TS format, format conversion for converting MMT format data as input data into the MPEG2-TS format is executed (1) to (4) The information processing apparatus described in 1.
  • the data processing unit The program information recording table in which program information is recorded in at least one of the two descriptor loops of the first descriptor loop and the second descriptor loop is generated. (1) to (6) Processing equipment.
  • the data processing unit The information processing apparatus according to any one of (1) to (7), wherein a program information recording table that records a descriptor defined in a selection information table (SIT) defined in the MPEG2-TS format is generated.
  • SIT selection information table
  • the data processing unit Transmission data to be transmitted to the network connection device is When the MMT packet sequence conforms to the MMT format, The information processing apparatus according to any one of (1) to (8), which generates a program information recording table (MH-SIT) according to an MMT format.
  • MH-SIT program information recording table
  • the data processing unit Transmission data to be transmitted to the network connection device is When the TS packet sequence conforms to the MPEG2-TS format, The information processing apparatus according to any one of (1) to (9), which generates a program information recording table (SIT) according to the MPEG2-TS format.
  • SIT program information recording table
  • the data processing unit The same descriptor as that specified in the MPEG2-TS format program information recording table (SIT) is selected from the control information recording table specified in the MMT format and recorded in the program information recording table (1) to ( 10) The information processing apparatus according to any one of the above.
  • the data processing unit The information processing apparatus according to any one of (1) to (12), wherein a packet identifier capable of identifying that the packet is a program information recording table storage packet is recorded in a storage packet of the program information recording table.
  • An MMT packet sequence storing MMT (MPEG Media Transport) format data is input, and a program information storage packet included in the MMT packet sequence is acquired.
  • An information processing apparatus having a data processing unit that reads program information from the program information storage packet and displays the program information on a display unit.
  • the program information is composed of a plurality of different descriptors, and at least some of the descriptors are descriptors defined in a selection information table (SIT) defined in the MPEG2-TS format.
  • SIT selection information table
  • a data processing unit inputs MMT (MPEG Media Transport) format data and executes a data processing step for generating transmission data to be transmitted to the network connection device.
  • the data processing unit includes: An information processing method for acquiring program information corresponding to MMT format data included in input data, generating a program information recording table, and generating transmission data including a storage packet of the program information recording table.
  • the data processing unit inputs an MMT packet sequence storing MMT (MPEG Media Transport) format data, acquires a program information storage packet included in the MMT packet sequence, An information processing method for reading program information from the program information storage packet and displaying the program information on a display unit.
  • MMT MPEG Media Transport
  • a program for executing information processing in an information processing device The data processing unit inputs MMT (MPEG Media Transport) format data, and executes a data processing step for generating transmission data to be transmitted to the network connection device.
  • the program includes: A program for acquiring program information corresponding to MMT format data included in input data, generating a program information recording table, and generating transmission data including a storage packet of the program information recording table.
  • a program for executing information processing in an information processing device An MMT packet sequence storing MMT (MPEG Media Transport) format data is input to the data processing unit, and a program information storage packet included in the MMT packet sequence is acquired.
  • the series of processes described in the specification can be executed by hardware, software, or a combined configuration of both.
  • the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run.
  • the program can be recorded in advance on a recording medium.
  • the program can be received via a network such as a LAN (Local Area Network) or the Internet and installed on a recording medium such as a built-in hard disk.
  • the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary.
  • the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.
  • the program information is acquired from the control information recording table stipulated by the MMT format, and the MMT packet sequence including the program information storage packet, or the TS packet sequence is obtained.
  • a configuration that enables generation and transmission of the program information at the transmission destination is realized.
  • a receiving device that receives data from a broadcasting station has a data processing unit that inputs MMT format data and generates transmission data to be transmitted to the network connection device.
  • the data processing unit acquires program information corresponding to MMT format data, generates a program information recording table, and generates transmission data including a program information storage packet.
  • the data processing unit acquires program information from a control information recording table such as an MMT format-defined event information table (MH-EIT), and transmits transmission data composed of an MMT packet sequence or a TS packet sequence,
  • MH-EIT MMT format-defined event information table
  • the program information can be used at the transmission destination.
  • program information is acquired from a control information recording table stipulated in the MMT format, an MMT packet sequence including a program information storage packet or a TS packet sequence is generated and transmitted, and the use of program information at the transmission destination is achieved.
  • MH-EIT MMT format-defined event information table
  • Broadcasting station (broadcasting server) DESCRIPTION OF SYMBOLS 20 Receiving device 30 Network connection apparatus 400 Information processing apparatus 401 Data input part 402 User input part 403 Control part 404 Storage part 405 Demultiplexer 406 Data processing part 407 Communication part 411 Subtitle data generation part 412 Image data generation part 413 Audio

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Abstract

La présente invention acquiert des informations de programme à partir d'une table d'enregistrement d'informations de commande conforme au format MMT, génère une séquence de paquets MMT ou une séquence de paquets TS comprenant un paquet de stockage d'informations de programme, et transmet la séquence de paquets générée, permettant aux informations de programme d'être utilisées au niveau d'une destination de transmission. La présente invention comprend une unité de traitement de données pour entrer des données de format MMT et générer des données de transmission à transmettre à un dispositif connecté au réseau. L'unité de traitement de données acquiert des informations de programme compatibles avec les données de format MMT, génère une table d'enregistrement d'informations de programme, et génère des données de transmission qui comprennent un paquet de stockage d'informations de programme. L'unité de traitement de données acquiert des informations de programme à partir d'une table d'enregistrement d'informations de commande telle qu'une table d'informations d'événement conforme au format MMT (MH-EIT) et transmet des données de transmission composées d'une séquence de paquets MMT ou d'une séquence de paquets TS, permettant aux informations de programme d'être utilisées au niveau d'une destination de transmission.
PCT/JP2019/017315 2018-05-30 2019-04-23 Dispositif de traitement d'informations, procédé de traitement d'informations, et programme WO2019230269A1 (fr)

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