CN106535005B - Method and device for realizing broadcast control service - Google Patents

Method and device for realizing broadcast control service Download PDF

Info

Publication number
CN106535005B
CN106535005B CN201610941222.2A CN201610941222A CN106535005B CN 106535005 B CN106535005 B CN 106535005B CN 201610941222 A CN201610941222 A CN 201610941222A CN 106535005 B CN106535005 B CN 106535005B
Authority
CN
China
Prior art keywords
broadcast control
program
lan
multicast group
multicast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610941222.2A
Other languages
Chinese (zh)
Other versions
CN106535005A (en
Inventor
艾本仁
鲍海兵
易晓莉
沈峰平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Baustem Information Technology Co ltd
Original Assignee
Beijing Baustem Information Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Baustem Information Technology Co ltd filed Critical Beijing Baustem Information Technology Co ltd
Priority to CN201610941222.2A priority Critical patent/CN106535005B/en
Publication of CN106535005A publication Critical patent/CN106535005A/en
Application granted granted Critical
Publication of CN106535005B publication Critical patent/CN106535005B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64322—IP
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6402—Address allocation for clients
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
    • H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL

Abstract

A method and device for realizing broadcast control service includes: the media server module receives a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); the media server module sends a second broadcast control request to the broadcast control agent module according to the URL of the broadcast control program in the first broadcast control request in the Home LAN and based on the IP address on the IP local area network LAN; the broadcast control agent module converts the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sends the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN; the media server module adds a multicast group according to the multicast group address of the broadcast control program on the IP LAN, acquires the IP multicast stream of the broadcast control program, converts the acquired IP multicast stream into an IP unicast stream and sends the IP unicast stream to the home network terminal.

Description

Method and device for realizing broadcast control service
Technical Field
The present disclosure relates to, but not limited to, the field of radio, television and telecommunications, and more particularly, to a method and apparatus for implementing broadcast control services.
Background
In the field of traditional operator terminals, such as set-top boxes, a set-top box receives a broadcast control request from a user; wherein, the broadcast control request comprises the requested broadcast control program (live program or on-demand program); the set top box acquires a broadcast control stream corresponding to a broadcast control program requested in the broadcast control request, decodes the acquired broadcast control stream, and sends the decoded broadcast control stream to the television for playing.
Currently, with the development of home network technology, users expect to receive broadcast control services (i.e., live broadcast services or on-demand services) on a plurality of home network terminals (e.g., smart phones, smart televisions, television boxes, or Personal Computers (PCs)) in homes. These home network terminals are based on Internet Protocol (IP) and have corresponding media stream decoders.
At this time, since the broadcast control stream obtained by the conventional set-top box is based on a Digital Video Broadcasting (DVB) protocol and the set-top box directly completes decoding, the decoded signal is sent to the television, and the home network terminal does not support the DVB protocol, the home network terminal cannot obtain the broadcast control service from the conventional set-top box. It is necessary to invent a method for realizing broadcast control service, which converts the conventional DVB protocol into IP and forwards the IP to the home network terminal, so that the home network terminal can obtain the broadcast control stream.
Disclosure of Invention
The embodiment of the invention provides a method and a device for realizing broadcast control service, which can provide the broadcast control service for a home network terminal.
The embodiment of the invention provides a method for realizing broadcast control service, which comprises the following steps:
the media server module receives a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); wherein, the first broadcast control request comprises: broadcasting a Uniform Resource Locator (URL) of a program in the Home LAN;
the media server module sends a second broadcast control request containing a program identifier to the broadcast control agent module according to the URL of the broadcast control program in the first broadcast control request in the Home LAN and based on the IP address on the IP Local Area Network (LAN);
the broadcast control agent module converts the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sends the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN;
the media server module adds a multicast group according to the multicast group address of the broadcast control program on the IP LAN based on the IP address on the IP LAN to obtain the IP multicast stream of the broadcast control program, converts the obtained IP multicast stream into an IP unicast stream, and sends the IP unicast stream to the Home network terminal based on the IP address on the Home LAN.
Optionally, the sending, by the media server module, the second broadcast control request to the broadcast control agent module includes:
the media server module analyzes the URL to obtain the broadcast control program identifier, or searches the broadcast control program identifier corresponding to the URL in the first broadcast control request in a first corresponding relation between the pre-stored URL and the broadcast control program identifier, and sends a second broadcast control request containing the broadcast control program identifier to the broadcast control agent module based on the IP address on the IP LAN.
Optionally, the broadcast control program identifier is a program identifier of a live program; the converting the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN includes:
the broadcast control agent searches a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN for the multicast group address on the IP LAN corresponding to the program identifier of the live program in the second broadcast control request;
or, the broadcast control agent sends the program identifier of the live program to a DVB-to-IP multicast forwarding module; the DVB-to-IP multicast forwarding module searches a multicast group address on the IP LAN corresponding to the program identifier of the live program in a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN, which is established in advance, and sends the searched multicast group address on the IP LAN to the broadcast control agent.
Optionally, the method further comprises:
the broadcast control agent module or DVB-to-IP multicast forwarding module establishes a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN in advance.
Optionally, the pre-establishing, by the broadcast control agent module or the DVB-to-IP multicast forwarding module, a second correspondence between the program identifier of the live program and the multicast group address on the IP LAN includes:
the broadcast control agent module receives a program information change message from a program information management module based on an IP address on an IP LAN, acquires program information of a live program from the program information management module, and sends a provision request to the DVB-to-IP multicast repeater module; the program information comprises a program identifier of a live program, and the Provisioning request comprises the program identifier of the live program;
the DVB-to-IP multicast forwarding module allocates a multicast group address on an IP LAN for each program identifier in the Provisioning request;
the DVB-to-IP multicast forwarding module sends a second corresponding relation between a program identifier of a live program and a multicast group address on an IP LAN to the broadcast control agent module; the broadcast control agent module stores the received second corresponding relation; alternatively, the first and second electrodes may be,
and the DVB-to-IP multicast forwarding module stores a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
Optionally, the broadcast control program identifier is a program identifier of an on-demand program; the step of converting the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN by the broadcast control agent module includes:
after receiving the second broadcast control request, the broadcast control agent module sends a Provisioning request to a DVB-to-IP multicast repeater; wherein the Provisioning request comprises: program identification of the on-demand program;
the DVB-to-IP multicast forwarding module allocates the multicast group address on the IP LAN for the on-demand program and sends the allocated multicast group address on the IP LAN to the broadcast control agent module.
Optionally, the adding a multicast group according to the multicast group address of the broadcast control program on the IP LAN, and obtaining the IP multicast stream of the broadcast control program includes:
the media server module sends a multicast group joining request to the DVB-to-IP multicast forwarding module; wherein, the request for joining the multicast group comprises the multicast group address of the broadcast control program on the IP LAN; the DVB-to-IP multicast forwarding module acquires the issued frequency point and the program number of the broadcast control program corresponding to the multicast group address in the DVB network; receiving a broadcast control program stream in the DVB network by adopting a DVB protocol according to the issued frequency point and the program number of the broadcast control program in the DVB network; and analyzing the broadcast control program stream to obtain an effective load, then packing the effective load according to a data transmission protocol of an IP network to obtain the IP multicast stream, and transmitting the packed effective load to the media server module.
The embodiment of the present invention further provides a device for implementing broadcast control service, including:
the media server module is used for receiving a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); wherein, the first broadcast control request comprises: broadcasting a Uniform Resource Locator (URL) of a program in the Home LAN;
according to the URL of the broadcast control program in the first broadcast control request in the Home LAN, based on the IP address on the IP local area network LAN, sending a second broadcast control request containing a program identifier to the broadcast control agent module;
the broadcast control agent module is used for converting the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sending the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN;
the media server module is further to: based on the IP address on the IP LAN, adding a multicast group according to the multicast group address of the broadcast control program on the IP LAN to obtain an IP multicast stream of the broadcast control program, converting the obtained IP multicast stream into an IP unicast stream, and sending the IP unicast stream to the Home network terminal based on the IP address on the Home LAN.
Optionally, the media server module is specifically configured to send the second broadcast control request to the broadcast control agent module by using the following manner:
and analyzing the URL to obtain the broadcast control program identifier, or searching the broadcast control program identifier corresponding to the URL in the first broadcast control request in a first corresponding relation between the pre-stored URL and the broadcast control program identifier, and sending a second broadcast control request containing the broadcast control program identifier to the broadcast control agent module based on the IP address on the IP LAN.
Optionally, the broadcast control program identifier is a program identifier of a live program; the broadcast control agent module is specifically configured to implement the following method to convert the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN:
searching a multicast group address on the IP LAN corresponding to the program identifier of the live program in the second broadcast control request in a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN;
or, the program identification of the live program is sent to a DVB-to-IP multicast forwarding module; receiving a multicast group address on an IP LAN from a DVB to IP multicast forwarding module;
further comprising:
and the DVB-to-IP multicast forwarding module is used for searching a multicast group address on the IP LAN corresponding to the program identifier of the live program in a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN, and sending the searched multicast group address on the IP LAN to the broadcast control agent.
Optionally, the broadcast control agent module or the DVB-to-IP multicast forwarding module is further configured to:
and pre-establishing a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
Optionally, the broadcast control agent module is specifically configured to implement the following method to establish a second correspondence between a program identifier of a live program and a multicast group address on an IP LAN in advance:
based on an IP address on an IP LAN, after receiving a program information change message from a program information management module, acquiring program information of a live program from the program information management module, and sending a Provisioning request to the DVB-to-IP multicast repeater module; the program information comprises a program identifier of a live program, and the Provisioning request comprises the program identifier of the live program;
receiving and storing a second corresponding relation from the DVB to the IP multicast forwarding module;
the device further comprises:
the program information management module is used for sending a program information change message to the broadcast control agent module;
the DVB-to-IP multicast forwarding module is used for allocating a multicast group address on an IP LAN for each program identifier in the Provisioning request;
sending the corresponding relation between the program identification of the live program and the multicast group address on the IP LAN to the broadcast control agent module; alternatively, the first and second electrodes may be,
and storing a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
Optionally, the broadcast control program identifier is a program identifier of an on-demand program; the broadcast control agent module is specifically configured to implement the following method to convert the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN:
after receiving the second broadcast control request, sending a Provisioning request to a DVB-to-IP multicast repeater; wherein the Provisioning request comprises: program identification of the on-demand program; receiving a multicast group address on an IP LAN from the DVB-to-IP multicast forwarding module;
the device further comprises:
and the DVB-to-IP multicast forwarding module is used for distributing the multicast group address on the IP LAN for the on-demand program and sending the distributed multicast group address on the IP LAN to the broadcast control agent module.
Optionally, the media server module is specifically configured to add the multicast group according to the multicast group address of the broadcast control program on the IP LAN, and obtain an IP multicast stream of the broadcast control program by using the following method:
sending a multicast group joining request to the DVB-to-IP multicast forwarding module; wherein, the request for joining the multicast group comprises the multicast group address of the broadcast control program on the IP LAN; receiving the packed effective load from the DVB-to-IP multicast forwarding module;
the DVB-to-IP multicast forwarding module is further configured to:
receiving the multicast group joining request, and acquiring a distribution frequency point and a program number of a broadcast control program corresponding to a multicast group address in a DVB network; receiving a broadcast control program stream in the DVB network by adopting a DVB protocol according to the issued frequency point and the program number of the broadcast control program in the DVB network; and analyzing the broadcast control program stream to obtain an effective load, then packing the effective load according to a data transmission protocol of an IP network to obtain the IP multicast stream, and transmitting the packed effective load to the media server module.
Compared with the related art, the technical scheme of the embodiment of the invention comprises the following steps: the media server module receives a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); wherein, the first broadcast control request comprises: broadcasting a Uniform Resource Locator (URL) of a program in the Home LAN; the media server module sends a second broadcast control request containing a program identifier to the broadcast control agent module according to the URL of the broadcast control program in the first broadcast control request in the Home LAN and based on the IP address on the IP Local Area Network (LAN); the broadcast control agent module converts the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sends the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN; the media server module adds a multicast group according to the multicast group address of the broadcast control program on the IP LAN based on the IP address on the IP LAN to obtain the IP multicast stream of the broadcast control program, converts the obtained IP multicast stream into an IP unicast stream, and sends the IP unicast stream to the Home network terminal based on the IP address on the Home LAN. According to the scheme of the embodiment of the invention, the IP multicast stream of the broadcast control program is obtained by converting the URL of the broadcast control program in the Home LAN into the multicast group address of the broadcast control program on the IP LAN, and is further converted into the IP unicast stream, so that the broadcast control service is provided for the Home network terminal.
Drawings
The accompanying drawings in the embodiments of the present invention are described below, and the drawings in the embodiments are provided for further understanding of the present invention, and together with the description serve to explain the present invention without limiting the scope of the present invention.
Fig. 1 is a flowchart of a method for implementing broadcast control service according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a device for implementing broadcast control service according to an embodiment of the present invention.
Detailed Description
The following further description of the present invention, in order to facilitate understanding of those skilled in the art, is provided in conjunction with the accompanying drawings and is not intended to limit the scope of the present invention. In the present application, the embodiments and various aspects of the embodiments may be combined with each other without conflict.
Referring to fig. 1, an embodiment of the present invention provides a method for implementing a broadcast control service, including:
step 100, a Media Server (Media Server) module receives a first broadcast request from a Home network terminal based on an IP address on the Home LAN.
In this step, the home network terminal may be any one or more of the following: intelligent mobile terminal, intelligent TV, TV box, PC etc..
In this step, the first broadcast control request includes: a Uniform Resource Locator (URL) of the program in the Home LAN is broadcast.
The broadcast control program can be a live program or an on-demand program.
The URL of the broadcast program is obtained from a Media Server (Media Server) module by the home network terminal, and how to obtain the URL can be implemented by a technique known to those skilled in the art, and is not used to limit the protection scope of the embodiment of the present invention, and will not be described herein again.
In this step, the media server module may receive a first broadcast control request from the home network terminal through a streaming media Protocol (e.g., Hypertext Transfer Protocol (HTTP)).
Step 101, the media server module sends a second broadcast control request containing a program identifier to the broadcast control agent module according to the URL of the broadcast control program in the first broadcast control request in the Home LAN and based on the IP address on the IP LAN.
In this step, the sending, by the media server module, the second broadcast control request to the broadcast control agent module includes:
the media server module analyzes the URL to obtain a broadcast control program identifier, or searches the broadcast control program identifier corresponding to the URL in the first broadcast control request in a first corresponding relation between the pre-stored URL and the broadcast control program identifier, and sends a second broadcast control request containing the broadcast control program identifier to the broadcast control agent module based on the IP address on the IP LAN.
Because the URL includes the broadcast control program identification field, the media server module can directly read the broadcast control program identification field in the URL to obtain the broadcast control program identification.
The broadcast control program identifier may be a program identifier of a live program or a program identifier of an on-demand program.
Step 102, the broadcast control agent module converts the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sends the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN.
In this step, when the broadcast control program identifier is a live program identifier, converting the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN includes:
the broadcast control agent searches a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN, and searches the multicast group address on the IP LAN corresponding to the program identifier of the live program in the second broadcast control request;
or, the broadcast control agent sends the program identification of the live program to the DVB-to-IP multicast forwarding module; and the DVB-to-IP multicast forwarding module searches a multicast group address on the IP LAN corresponding to the program identifier of the live program in a second corresponding relation between the program identifier of the live program established in advance and the multicast group address on the IP LAN, and sends the searched multicast group address on the IP LAN to the broadcast control agent.
Optionally, the second corresponding relationship further includes: the distribution frequency point and program number of the live program in DVB network.
When the broadcast control program identifier is the program identifier of the on-demand program, the step of converting the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN by the broadcast control agent module includes:
after receiving the second broadcast control request, the broadcast control agent module sends a configuration (Provisioning) request to the DVB-to-IP multicast forwarding module; wherein the Provisioning request comprises: program identification of the on-demand program;
the DVB-to-IP multicast forwarding module allocates the multicast group address on the IP LAN for the on-demand program and sends the allocated multicast group address on the IP LAN to the broadcast control agent module.
After receiving the second broadcast control request, the broadcast control agent module also sends a program broadcast request containing the program identifier of the on-demand program to the DVB front-end system; the method comprises the steps of receiving a distribution frequency point and a program number of a program on demand from a DVB front-end system in a DVB network, including the distribution frequency point and the program number of the program on demand in the DVB network in a Provisioning request, and sending the distribution frequency point and the program number to a DVB-to-IP multicast forwarding module.
The broadcast control agent module sets the request program identification, the distribution frequency point and the program number to the DVB-to-IP multicast forwarding module, namely, the corresponding relation among the request program identification, the distribution frequency point, the program number and the multicast group address is stored, so that the DVB-to-IP multicast forwarding module can acquire the request stream from the DVB network.
The DVB-to-IP multicast forwarding module may assign a multicast group address on the IP LAN for each program according to a preset rule.
The preset rule can be, but is not limited to, one of the following modes:
(1) searching an idle multicast address from a self multicast group address pool;
(2) the multicast address is divided into a plurality of domains according to one or more classification modes in advance, and an idle multicast group address is searched in each domain.
Such as: the first according to the service can be divided into three domains: live broadcast, on demand, and others; and then the multicast address can be directly distributed in the live broadcast domain, or the multicast address can be divided into domains according to other classification modes.
And 103, the media server module adds a multicast group according to the multicast group address of the broadcast control program on the IP LAN based on the IP address on the IP LAN to obtain an IP multicast stream of the broadcast control program, converts the obtained IP multicast stream into an IP unicast stream, and sends the IP unicast stream to the Home network terminal based on the IP address on the Home LAN.
In this step, the media server module may use a Group Management Protocol (IGMP) to join the multicast Group.
In this step, adding a multicast group according to the multicast group address of the broadcast control program on the IP LAN, and obtaining an IP multicast stream of the broadcast control program includes:
the media server module sends a multicast group joining request to the DVB-to-IP multicast forwarding module; wherein, the request for joining the multicast group comprises the multicast group address of the broadcast control program on the IP LAN; the DVB-to-IP multicast forwarding module acquires the issued frequency point and the program number of the broadcast control program corresponding to the multicast group address in the DVB network; and according to the issued frequency point and program number of the broadcast control program in the DVB network, adopting DVB protocol to receive the broadcast control program stream in the DVB network, analyzing the broadcast control program stream to obtain an effective load, then packing the effective load according to the data transmission protocol of the IP network to obtain IP multicast stream, and transmitting the packed effective load to the media server module.
The DVB-to-IP multicast forwarding module can search the distribution frequency point and the program number of the broadcast control program corresponding to the multicast group address in the DVB network in the corresponding relation.
The data transmission Protocol of the IP network may include Moving Picture Experts Group (MPEG) 2 and User Datagram Protocol (UDP) multicast.
In this step, how to convert the obtained IP multicast stream into the IP unicast stream by the media server may be implemented by using a technical means known by those skilled in the art, and is not used to limit the protection scope of the embodiment of the present invention, and details are not described here.
Optionally, when the broadcast program identifier is a program identifier of a live program, the method further includes, before:
the broadcast control agent module or DVB-to-IP multicast forwarding module establishes a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN in advance.
The pre-establishing of the second correspondence between the program identifier of the live program and the multicast address on the IP LAN includes:
after receiving the program information change message from the program information management module, the broadcast control agent module acquires the program information from the program information management module and sends a Provisioning (Provisioning) request to the DVB-to-IP multicast forwarding module; wherein the program information includes: the program identification of the live program, wherein the provision request comprises the program identification of the live program; the DVB-to-IP multicast forwarding module allocates a multicast group address on an IP LAN for each program identifier in the Provisioning request;
the DVB-to-IP multicast forwarding module sends a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN to the broadcast control agent module; the broadcast control agent module stores the received second corresponding relation; alternatively, the first and second electrodes may be,
the DVB-to-IP multicast forwarding module stores a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
Optionally, when the DVB-to-IP multicast forwarding module receives the query request from the broadcast control agent module, in the second correspondence, the multicast group address on the IP LAN corresponding to the program identifier of the live program in the query request is searched, and the searched multicast group address on the IP LAN is sent to the broadcast control agent module; the broadcast control agent module stores the program identification of the live program in the query request and the received corresponding relation between the multicast group addresses on the IP LAN.
Optionally, the program information further includes: sending down frequency points and program numbers of live programs in a DVB network; the Provisioning request further includes: sending down frequency points and program numbers of live programs in a DVB network; the corresponding relation further includes: the distribution frequency point and program number of the live program in DVB network.
After the program information management module carries out live broadcast search, the program information management module sends a program information change message to the broadcast control agent module and the media server module. And after receiving the program information change message, the media server module acquires the program information from the program information management module, distributes the metadata of the program for the program according to the program information and a certain rule, and sends the metadata of the program to the Home network terminal on the Home LAN.
Wherein the metadata of the program includes a URL of the program.
Specifically, how to perform live broadcast search by the program information management module may be implemented by techniques known to those skilled in the art, and is not used to limit the protection scope of the present invention, and details thereof are not described here.
The specific way how the media server module allocates the metadata of the program to the program according to the program information may be implemented by using techniques well known to those skilled in the art, and is not used to limit the protection scope of the present invention, and is not described herein again.
The DVB-to-IP multicast forwarding module may assign a multicast group address on the IP LAN for each program according to a preset rule.
The preset rule can be, but is not limited to, one of the following modes:
(3) searching an idle multicast address from a self multicast group address pool;
(4) the multicast address is divided into a plurality of domains according to one or more classification modes in advance, and an idle multicast group address is searched in each domain.
Such as: the first according to the service can be divided into three domains: live broadcast, on demand, and others; and then the multicast address can be directly distributed in the live broadcast domain, or the multicast address can be divided into domains according to other classification modes.
Optionally, the method further includes:
when the media server module receives a browsing request from the Home network terminal based on the IP address on the Home LAN, the media server module forwards the browsing request to the program information management module based on the IP address on the IP LAN; the program information management module acquires metadata of the broadcast control program from a DVB front-end system, and sends the acquired metadata to the media server module based on an IP address on an IP LAN; the media server module transmits the obtained metadata to the Home network terminal based on the IP address on the Home LAN.
In the method, the Home LAN includes a media server module and a Home network terminal, and is an independent local area network, the Home network terminal in the Home LAN only communicates with the media server module and does not communicate with a device in the IP LAN, a Dynamic Host Configuration Protocol (DHCP) service module in the Home LAN allocates IP addresses on the Home LAN for the Home network terminal and the media server module, and may also allocate a static IP address for the media server module, and the Home network terminal and the media server module communicate based on the allocated IP addresses on the Home LAN.
The IP LAN is another local area network independent of the Home LAN, and comprises a program information management module, a DVB-to-IP multicast forwarding module, a broadcast control agent module and a media server module, wherein a DHCP service module in the IP LAN allocates IP addresses on the IP LAN for the program information management module, the DVB-to-IP multicast forwarding module, the broadcast control agent module and the media server module, and can also allocate static IP addresses for the program information management module, the DVB-to-IP multicast forwarding module, the broadcast control agent module and the media server module, and the program information management module, the DVB-to-IP multicast forwarding module, the broadcast control agent module and the media server module communicate based on the allocated IP addresses on the Home LAN.
In the method, the program information management module, the broadcast control agent module, the DVB-to-IP multicast forwarding module and the media server module can be arranged in the home gateway.
The above method has the following advantages:
a media server module in the Home LAN does not need to concern about DVB network characteristics, so that the development difficulty is reduced, and even the media server module can be developed by a third-party service provider;
the media server module in the Home LAN can be directly applied to an interactive network Television (IPTV) service;
the home gateway can also directly use a media server module in an interactive network Television (IPTV) service;
data of the DVB network can be shared by a plurality of components on an IP LAN in the home gateway without influencing the current playing and without needing additional television Cable (Cable) receiving resources.
Referring to fig. 2, an embodiment of the present invention further provides a device for implementing broadcast control service, which may be disposed in a home gateway, and includes:
the media server module is used for receiving a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); wherein, the first broadcast control request comprises: broadcasting a Uniform Resource Locator (URL) of a program in the Home LAN;
according to the URL of the broadcast control program in the first broadcast control request in the Home LAN, based on the IP address on the IP local area network LAN, sending a second broadcast control request containing a program identifier to the broadcast control agent module;
the broadcast control agent module is used for converting the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sending the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN;
the media server module is further to: based on the IP address on the IP LAN, adding a multicast group according to the multicast group address of the broadcast control program on the IP LAN to obtain an IP multicast stream of the broadcast control program, converting the obtained IP multicast stream into an IP unicast stream, and sending the IP unicast stream to the Home network terminal based on the IP address on the Home LAN.
Optionally, the media server module is specifically configured to send the second broadcast control request to the broadcast control agent module by using the following manner:
and analyzing the URL to obtain a broadcast control program identifier, or searching the broadcast control program identifier corresponding to the URL in the first broadcast control request in a first corresponding relation between the pre-stored URL and the broadcast control program identifier, and sending a second broadcast control request containing the program identifier to the broadcast control agent module based on the IP address on the IP LAN.
Optionally, the broadcast control program identifier is a program identifier of a live program; the broadcast control agent module is specifically configured to implement the following method to convert the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN:
searching a multicast group address on the IP LAN corresponding to the program identifier of the live program in the second broadcast control request in a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN;
or, the program identification of the live program is sent to the DVB-to-IP multicast forwarding module; receiving a multicast group address on an IP LAN from a DVB to IP multicast forwarding module;
further comprising:
and the DVB-to-IP multicast forwarding module is used for searching a multicast group address on the IP LAN corresponding to the program identifier of the live program in a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN, and sending the searched multicast group address on the IP LAN to the broadcast control agent.
Optionally, the broadcast control agent module or the DVB-to-IP multicast forwarding module is further configured to:
and pre-establishing a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
Optionally, the broadcast control agent module is specifically configured to implement the following method to establish a second correspondence between the program identifier of the live program and the multicast group address on the IP LAN in advance:
based on an IP address on an IP LAN, after receiving a program information change message from a program information management module, acquiring program information of a live program from the program information management module, and sending a provision request to a DVB-to-IP multicast repeater module; the program information comprises a program identifier of a live program, and the Provisioning request comprises the program identifier of the live program;
receiving and storing a second corresponding relation from the DVB to the IP multicast forwarding module;
the device still includes:
the program information management module is used for sending a program information change message to the broadcast control agent module;
a DVB-to-IP multicast forwarding module, configured to allocate a multicast group address on an IP LAN to each program identifier in the Provisioning request;
sending the corresponding relation between the program identification of the live program and the multicast group address on the IP LAN to a broadcast control agent module; alternatively, the first and second electrodes may be,
and storing a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
Optionally, the broadcast control program identifier is a program identifier of the on-demand program; the broadcast control agent module is specifically configured to implement the following method to convert the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN:
after receiving the second broadcast control request, sending a Provisioning request to the DVB-to-IP multicast repeater; wherein the Provisioning request comprises: program identification of the on-demand program; receiving a multicast group address on an IP LAN from a DVB to IP multicast forwarding module;
the device still includes:
and the DVB-to-IP multicast forwarding module is used for distributing the multicast group address on the IP LAN for the on-demand program and sending the distributed multicast group address on the IP LAN to the broadcast control agent module.
Optionally, the media server module is specifically configured to join the multicast group according to the multicast group address of the broadcast control program on the IP LAN, and obtain an IP multicast stream of the broadcast control program by using the following method:
sending a multicast group joining request to a DVB-to-IP multicast forwarding module; wherein, the request for joining the multicast group comprises the multicast group address of the broadcast control program on the IP LAN; receiving a packed effective load from DVB to IP multicast forwarding module;
the DVB-to-IP multicast forwarding module is further configured to:
receiving a request for joining a multicast group, and acquiring a distributed frequency point and a program number of a broadcast control program corresponding to a multicast group address in a DVB network; receiving a broadcast control program stream in the DVB network by adopting a DVB protocol according to an issued frequency point and a program number of the broadcast control program in the DVB network; and analyzing the broadcast control program stream to obtain an effective load, then packing the effective load according to a data transmission protocol of an IP network to obtain the IP multicast stream, and transmitting the packed effective load to a media server module.
It should be noted that the above-mentioned embodiments are only for facilitating the understanding of those skilled in the art, and are not intended to limit the scope of the present invention, and any obvious substitutions, modifications, etc. made by those skilled in the art without departing from the inventive concept of the present invention are within the scope of the present invention.

Claims (14)

1. A method for implementing broadcast control service is characterized in that the method comprises the following steps:
the media server module receives a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); wherein, the first broadcast control request comprises: broadcasting a Uniform Resource Locator (URL) of a program in the Home LAN;
the media server module sends a second broadcast control request containing a program identifier to the broadcast control agent module according to the URL of the broadcast control program in the first broadcast control request in the Home LAN and based on the IP address on the IP Local Area Network (LAN);
the broadcast control agent module converts the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sends the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN;
the media server module adds a multicast group according to the multicast group address of the broadcast control program on the IP LAN based on the IP address on the IP LAN to obtain the IP multicast stream of the broadcast control program, converts the obtained IP multicast stream into an IP unicast stream, and sends the IP unicast stream to the Home network terminal based on the IP address on the Home LAN.
2. The method of claim 1, wherein the media server module sending a second broadcast request to a broadcast agent module comprises:
the media server module analyzes the URL to obtain the broadcast control program identifier, or searches the broadcast control program identifier corresponding to the URL in the first broadcast control request in a first corresponding relation between the pre-stored URL and the broadcast control program identifier, and sends a second broadcast control request containing the broadcast control program identifier to the broadcast control agent module based on an IP address on an IP LAN.
3. The method of claim 1, wherein the broadcast program identifier is a program identifier of a live program; the converting the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN includes:
the broadcast control agent searches a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN for the multicast group address on the IP LAN corresponding to the program identifier of the live program in the second broadcast control request;
or, the broadcast control agent sends the program identifier of the live program to a Digital Video Broadcasting (DVB) to IP multicast forwarding module; the DVB-to-IP multicast forwarding module searches a multicast group address on the IP LAN corresponding to the program identifier of the live program in a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN, which is established in advance, and sends the searched multicast group address on the IP LAN to the broadcast control agent.
4. The method of claim 3, further comprising, prior to the method:
the broadcast control agent module or the DVB-to-IP multicast forwarding module establishes a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN in advance.
5. The method as claimed in claim 4, wherein the pre-establishing, by the broadcast control agent module or the DVB-to-IP multicast forwarding module, the second correspondence between the program identifier of the live program and the multicast group address on the IP LAN comprises:
the broadcast control agent module receives a program information change message from a program information management module based on an IP address on an IP LAN, acquires program information of a live program from the program information management module, and sends a provision request to the DVB-to-IP multicast repeater module; the program information comprises a program identifier of a live program, and the Provisioning request comprises the program identifier of the live program;
the DVB-to-IP multicast forwarding module allocates a multicast group address on an IP LAN for each program identifier in the Provisioning request;
the DVB-to-IP multicast forwarding module sends a second corresponding relation between a program identifier of a live program and a multicast group address on an IP LAN to the broadcast control agent module; the broadcast control agent module stores the received second corresponding relation; alternatively, the first and second electrodes may be,
and the DVB-to-IP multicast forwarding module stores a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
6. The method of claim 1, wherein the broadcast program identifier is a program identifier of an on-demand program; the step of converting the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN by the broadcast control agent module includes:
after receiving the second broadcast control request, the broadcast control agent module sends a Provisioning request to a DVB-to-IP multicast repeater; wherein the Provisioning request comprises: program identification of the on-demand program;
the DVB-to-IP multicast forwarding module allocates the multicast group address on the IP LAN for the on-demand program and sends the allocated multicast group address on the IP LAN to the broadcast control agent module.
7. The method of claim 1, wherein the joining the multicast group according to the multicast group address of the broadcast control program on the IP LAN, and obtaining the IP multicast stream of the broadcast control program comprises:
the media server module sends a multicast group joining request to a DVB-to-IP multicast forwarding module; wherein, the request for joining the multicast group comprises the multicast group address of the broadcast control program on the IP LAN; the DVB-to-IP multicast forwarding module acquires the issued frequency point and the program number of the broadcast control program corresponding to the multicast group address in the DVB network; receiving a broadcast control program stream in the DVB network by adopting a DVB protocol according to the issued frequency point and the program number of the broadcast control program in the DVB network; and analyzing the broadcast control program stream to obtain an effective load, then packing the effective load according to a data transmission protocol of an IP network to obtain the IP multicast stream, and transmitting the packed effective load to the media server module.
8. An apparatus for implementing broadcast control service, comprising:
the media server module is used for receiving a first broadcast control request from a Home network based on an Internet Protocol (IP) address on a Home local area network (Home LAN); wherein, the first broadcast control request comprises: broadcasting a Uniform Resource Locator (URL) of a program in the Home LAN;
according to the URL of the broadcast control program in the first broadcast control request in the Home LAN, based on the IP address on the IP local area network LAN, sending a second broadcast control request containing a program identifier to the broadcast control agent module;
the broadcast control agent module is used for converting the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN, and sending the multicast group address of the broadcast control program on the IP LAN to the media server module based on the IP address on the IP LAN;
the media server module is further to: based on the IP address on the IP LAN, adding a multicast group according to the multicast group address of the broadcast control program on the IP LAN to obtain an IP multicast stream of the broadcast control program, converting the obtained IP multicast stream into an IP unicast stream, and sending the IP unicast stream to the Home network terminal based on the IP address on the Home LAN.
9. The apparatus as claimed in claim 8, wherein the media server module is specifically configured to implement sending the second broadcast control request to the broadcast agent module by:
analyzing the URL to obtain the broadcast control program identifier, or searching the broadcast control program identifier corresponding to the URL in the first broadcast control request in a first corresponding relation between the pre-stored URL and the broadcast control program identifier, and sending a second broadcast control request containing the broadcast control program identifier to the broadcast control agent module based on an IP address on an IP LAN.
10. The apparatus of claim 8, wherein the broadcast program identifier is a program identifier of a live program; the broadcast control agent module is specifically configured to implement the following method to convert the broadcast control program identifier in the second broadcast control request into a multicast group address of the broadcast control program on the IP LAN:
searching a multicast group address on the IP LAN corresponding to the program identifier of the live program in the second broadcast control request in a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN;
or, the program identification of the live program is sent to a DVB-to-IP multicast forwarding module; receiving a multicast group address on an IP LAN from a DVB to IP multicast forwarding module;
further comprising:
and the DVB-to-IP multicast forwarding module is used for searching a multicast group address on the IP LAN corresponding to the program identifier of the live program in a second corresponding relation between the program identifier of the pre-established live program and the multicast group address on the IP LAN, and sending the searched multicast group address on the IP LAN to the broadcast control agent.
11. The apparatus of claim 10, wherein the broadcast agent module or the DVB-to-IP multicast forwarding module is further configured to:
and pre-establishing a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
12. The apparatus according to claim 11, wherein the broadcast control agent module is specifically configured to implement pre-establishing the second correspondence between the program identifier of the live program and the multicast group address on the IP LAN, in the following manner:
based on an IP address on an IP LAN, after receiving a program information change message from a program information management module, acquiring program information of a live program from the program information management module, and sending a Provisioning request to the DVB-to-IP multicast repeater module; the program information comprises a program identifier of a live program, and the Provisioning request comprises the program identifier of the live program;
receiving and storing a second corresponding relation from the DVB to the IP multicast forwarding module;
the device further comprises:
the program information management module is used for sending a program information change message to the broadcast control agent module;
the DVB-to-IP multicast forwarding module is used for allocating a multicast group address on an IP LAN for each program identifier in the Provisioning request;
sending the corresponding relation between the program identification of the live program and the multicast group address on the IP LAN to the broadcast control agent module; alternatively, the first and second electrodes may be,
and storing a second corresponding relation between the program identifier of the live program and the multicast group address on the IP LAN.
13. The apparatus of claim 8, wherein the broadcast program identifier is a program identifier of an on-demand program; the broadcast control agent module is specifically configured to implement the following method to convert the broadcast control program identifier in the second broadcast control request into the multicast group address of the broadcast control program on the IP LAN:
after receiving the second broadcast control request, sending a Provisioning request to a DVB-to-IP multicast repeater; wherein the Provisioning request comprises: program identification of the on-demand program; receiving a multicast group address on an IP LAN from the DVB-to-IP multicast forwarding module;
the device further comprises:
and the DVB-to-IP multicast forwarding module is used for distributing the multicast group address on the IP LAN for the on-demand program and sending the distributed multicast group address on the IP LAN to the broadcast control agent module.
14. The apparatus as claimed in claim 8, wherein the media server module is specifically configured to implement the joining of the multicast group according to the multicast group address of the broadcast control program on the IP LAN to obtain the IP multicast stream of the broadcast control program by:
sending a multicast group joining request to a DVB-to-IP multicast forwarding module; wherein, the request for joining the multicast group comprises the multicast group address of the broadcast control program on the IP LAN; receiving the packed effective load from the DVB-to-IP multicast forwarding module;
the DVB-to-IP multicast forwarding module is used for:
receiving the multicast group joining request, and acquiring a distribution frequency point and a program number of a broadcast control program corresponding to a multicast group address in a DVB network; receiving a broadcast control program stream in the DVB network by adopting a DVB protocol according to the issued frequency point and the program number of the broadcast control program in the DVB network; and analyzing the broadcast control program stream to obtain an effective load, then packing the effective load according to a data transmission protocol of an IP network to obtain the IP multicast stream, and transmitting the packed effective load to the media server module.
CN201610941222.2A 2016-10-25 2016-10-25 Method and device for realizing broadcast control service Active CN106535005B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610941222.2A CN106535005B (en) 2016-10-25 2016-10-25 Method and device for realizing broadcast control service

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610941222.2A CN106535005B (en) 2016-10-25 2016-10-25 Method and device for realizing broadcast control service

Publications (2)

Publication Number Publication Date
CN106535005A CN106535005A (en) 2017-03-22
CN106535005B true CN106535005B (en) 2021-07-06

Family

ID=58292679

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610941222.2A Active CN106535005B (en) 2016-10-25 2016-10-25 Method and device for realizing broadcast control service

Country Status (1)

Country Link
CN (1) CN106535005B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111432250B (en) * 2019-01-09 2022-05-17 中央电视台 4K program broadcasting control system and method
CN111225252B (en) * 2020-01-06 2022-07-26 广东九联科技股份有限公司 PON gateway UPNP video live broadcast method based on openwrt system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101163140A (en) * 2006-10-09 2008-04-16 华为技术有限公司 Content obtaining method and server
CN202334795U (en) * 2011-10-12 2012-07-11 北京歌华有线数字媒体有限公司 Satellite broadcasting-based mobile wireless video service system
CN103024508A (en) * 2011-09-20 2013-04-03 Lg电子株式会社 Digital system and method of processing service data thereof
CN103871299A (en) * 2014-01-23 2014-06-18 东南大学 Multimedia network communication comprehensive experiment system
EP2953316A1 (en) * 2006-10-02 2015-12-09 LG Electronics Inc. Apparatus for receiving adaptive broadcast signal and method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050055723A1 (en) * 2003-09-10 2005-03-10 Wi Networks Inc. Indoor installation of TV broadcasting with return channel
US20110158149A1 (en) * 2009-12-29 2011-06-30 Satish Mugulavalli Multimedia gateway for use in a networked home environment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2953316A1 (en) * 2006-10-02 2015-12-09 LG Electronics Inc. Apparatus for receiving adaptive broadcast signal and method thereof
CN101163140A (en) * 2006-10-09 2008-04-16 华为技术有限公司 Content obtaining method and server
CN103024508A (en) * 2011-09-20 2013-04-03 Lg电子株式会社 Digital system and method of processing service data thereof
CN202334795U (en) * 2011-10-12 2012-07-11 北京歌华有线数字媒体有限公司 Satellite broadcasting-based mobile wireless video service system
CN103871299A (en) * 2014-01-23 2014-06-18 东南大学 Multimedia network communication comprehensive experiment system

Also Published As

Publication number Publication date
CN106535005A (en) 2017-03-22

Similar Documents

Publication Publication Date Title
EP1909457B1 (en) Apparatus for receiving adaptive broadcast signal and method thereof
US20120297423A1 (en) Method and system for program and stream control of video to target device
CN101217642A (en) Method of transmitting preview content and method and apparatus for receiving preview content
KR102443060B1 (en) Information processing devices and information processing methods
WO2018103644A1 (en) Live stream sharing method and device, home media apparatus, and data storage medium
KR102496890B1 (en) Information processing device, client device, and data processing method
US11956159B2 (en) Transmission device, transmission method, reception device, and reception method
US20180139476A1 (en) Dynamic event signaling
KR102532046B1 (en) Receiving device, sending device and data processing method
CN104160707A (en) Broadcast encoding, recording and distribution system and method
CN104754406A (en) Method and device for playing Internet video and audio contents by use of IPTV set-top box
KR102479001B1 (en) Receiving device, sending device, and data processing method
CN106535005B (en) Method and device for realizing broadcast control service
CN104780424A (en) Local area network live video distribution method based on set-top box
US10757479B2 (en) Media interface device
US9641890B2 (en) Media services transport format converter
WO2018043111A1 (en) Information processing device, information processing method, and information processing system
CN111263214A (en) Multi-screen interaction realization method and system
CN103297822A (en) Set-top box and digital signal processing method thereof for television programs
US20210204018A1 (en) Content distribution system using broadcast network
US20210288864A1 (en) Methods and systems for content distribution
KR101603113B1 (en) Iptv broadcast receiver and application data receiving method thereof
KR20160041833A (en) Method and apparatus for rendering broadcast service
KR20180024970A (en) System for providing a broadcast service continuously and method for using the same
JP2019062457A (en) Content receiving system, communication device, and program

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant