CN108235073B - Program updating method - Google Patents

Program updating method Download PDF

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Publication number
CN108235073B
CN108235073B CN201810143613.9A CN201810143613A CN108235073B CN 108235073 B CN108235073 B CN 108235073B CN 201810143613 A CN201810143613 A CN 201810143613A CN 108235073 B CN108235073 B CN 108235073B
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China
Prior art keywords
program
information
frequency point
update
terminal
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CN201810143613.9A
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Chinese (zh)
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CN108235073A (en
Inventor
张明
赵伟
徐磊
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Hisense Broadband Multimedia Technology Co Ltd
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Hisense Broadband Multimedia Technology Co Ltd
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Priority to CN201510011623.3A priority Critical patent/CN104602107B/en
Priority to CN201810143613.9A priority patent/CN108235073B/en
Publication of CN108235073A publication Critical patent/CN108235073A/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84Generation or processing of descriptive data, e.g. content descriptors

Abstract

The embodiment of the invention provides a program updating method, a terminal and a server, which can reduce the time for updating programs by the terminal and improve the user experience. The program updating method comprises the following steps: acquiring updating information in a digital transmission signal sent by a server, wherein the updating information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server; acquiring description information of each program transmitted on each frequency point in at least one frequency point according to a configuration file of at least one frequency point included in the update information, wherein the description information of the program includes various parameters required by the terminal when the terminal plays the program; and updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal. The program updating method provided by the embodiment of the invention is used for updating the program by the terminal.

Description

Program updating method
The application is a divisional application of a Chinese patent application 201510011623.3 entitled "a program updating method, a terminal and a server" provided by 09.01.2015.
Technical Field
The invention relates to the field of televisions, in particular to a program updating method, a terminal and a server.
Background
With the humanized demand of people on television programs, digital television systems are more and more widely applied, and a terminal is an important device for realizing digital television functions, under a common condition, the terminal records description information of programs capable of being received in a local program information database for management, wherein the description information comprises information such as frequency of frequency points where the programs are located, coding modes and the like, but because a server can often plan and adjust the programs, namely information such as the frequency points or the coding modes of the programs are changed, the terminal needs to update the program information database frequently, and the common terminal is a set top box.
For example, assuming that the terminal is a set-top box and a digital transmission signal sent by the server to the set-top box includes a Network Information Table (NIT), if the server updates a program, a version number of the NIT sent by the server to the set-top box may change, when a user starts a television, the set-top box may determine that the program update may be required according to a difference between a received version number of the NIT Table and a currently recorded version number of the NIT Table, then search for each frequency point included in the NIT, acquire description Information of each program transmitted on each frequency point, that is, all frequency points broadcast by the server need to be searched, and update the entire program Information database according to the acquired description Information of each program transmitted on each frequency point.
However, in general, the server does not update all programs of the whole network in a large range, and only adjusts individual programs, so that only a few frequency points are involved, and description information of most programs is not changed. In the prior art, when a set top box updates programs, all frequency points broadcasted by a server are searched, so that each time of updating, a plurality of frequency points which are not updated are searched, namely, a plurality of invalid updates are performed, and further, the time spent on updating is long, and the user experience is influenced.
Disclosure of Invention
The embodiment of the invention provides a program updating method, a terminal and a server, which can reduce the time for updating programs by the terminal and improve the user experience.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in one aspect, an embodiment of the present invention provides a program updating method for a terminal, where the method includes:
acquiring updating information in a digital transmission signal sent by a server, wherein the updating information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server;
acquiring description information of each program transmitted on each frequency point in at least one frequency point according to a configuration file of at least one frequency point included in the update information, wherein the description information of the program includes various parameters required by the terminal when the terminal plays the program;
and updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal.
In another aspect, an embodiment of the present invention provides a program updating method, which is used for a server, and the method includes:
updating at least one program;
generating updating information, wherein the updating information comprises a configuration file of at least one frequency point in the frequency points related to the at least one program updated by the server;
and sending the updated information to the terminal.
In another aspect, an embodiment of the present invention provides a terminal, where the terminal includes:
the system comprises a first acquisition unit, a second acquisition unit and a processing unit, wherein the first acquisition unit is used for updating information in a digital transmission signal sent by a server, and the updating information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server;
a second obtaining unit, configured to obtain description information of each program transmitted on each frequency point in the at least one frequency point according to a configuration file of the at least one frequency point included in the update information, where the description information of the program includes various parameters required when the terminal plays the program;
and the updating unit is used for updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal.
In another aspect, an embodiment of the present invention provides a server, where the server includes:
an updating unit for updating at least one program;
a generating unit, configured to generate update information, where the update information includes a configuration file of at least one of the frequency points related to the at least one program updated by the server;
and the sending unit is used for sending the updating information to the terminal.
The embodiment of the invention provides a program updating method, a terminal and a server, wherein the method comprises the steps of firstly obtaining updating information in a digital transmission signal sent by the server, wherein the updating information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server, then obtaining description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the updating information, wherein the description information of the program comprises various parameters required by the terminal when the program is played, and further updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal. Compared with the prior art, when the terminal updates the program information database, the program information database is updated according to the update information sent by the server, and the frequency point in the update information is only at least one of the frequency points related to the program updated by the server, so that the terminal does not need to search all the frequency points broadcast by the server to update the program information database, only needs to search the frequency points related to the update included in the update information to obtain the description information of the program transmitted on the frequency points related to the update, and then only needs to update the program information database according to the description information of the program transmitted on the frequency points related to the update in the obtained update information, thereby saving the time for updating the program by the terminal and improving the user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a program updating method according to an embodiment of the present invention;
fig. 2 is a flowchart of another program updating method according to an embodiment of the present invention;
fig. 3 is a flowchart of another program updating method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another terminal according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a program updating method for a terminal, where as shown in fig. 1, the method includes:
step 101, obtaining update information in a digital transmission signal sent by a server, wherein the update information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server.
For example, the configuration file of the frequency point generally includes information such as frequency, modulation mode, symbol rate, and the like of the corresponding frequency point, and the server is a program sending device of a radio and television center or a program sending device of a television station, such as a program current terminal. For example, the digital transmission signal may be a signal including an NIT (Network information table) sent by the server to the terminal, for example, a TS (Transport Stream) code Stream, the update information may be included in the NIT, and the feature information configuration file includes information such as a frequency, a modulation mode, and a symbol rate of a corresponding frequency point. In practical application, the server may add a new program or adjust the original program according to the user requirement, that is, plan and adjust the frequency point of the current program and the coding mode of the individual program according to the user requirement, so that the updated program meets the user requirement. For example, suppose that a first program is a standard definition program currently, a user needs to change the first program into a high definition program, and at this time, a server needs to update an encoding mode of the first program; or the server needs to allocate frequency points for the second program in response to the user's demand, and since the programs transmittable at one frequency point are limited, the use of the current frequency point needs to be adjusted and planned when the second program is added. Therefore, when a program changes, the server does not adjust all frequency points or the coding modes of all programs, but adjusts information of individual programs, so that after the server is updated, updated information can be generated.
In practical applications, the server may send the updated information to the terminal as separate information in a broadcast form or a directional transmission form. For example, the server may send the update information to the terminal having the IP address in a targeted manner according to the IP address; the update information may also be transmitted in the form of a broadcast to all terminals connected to the server. The common terminal is a set-top box or a network terminal capable of realizing the function of the set-top box, and if the television and the set-top box are integrated into an all-in-one machine, the terminal can also be the all-in-one machine.
102, obtaining description information of each program transmitted on each frequency point in the at least one frequency point according to a configuration file of the at least one frequency point included in the update information, wherein the description information of the program includes various parameters required when the terminal plays the program.
In practical application, the terminal may obtain a configuration file of any one frequency point in the configuration file of at least one frequency point included in the update information, and then demodulate and search the frequency point according to information, such as frequency, modulation mode, symbol rate, and the like included in the configuration file of the frequency point, so as to obtain description information of each program in all programs transmitted on the frequency point, where the description information of the program includes various parameters required when the terminal plays the program, for example, the description information of the program includes information, such as frequency, coding mode, and the like of the frequency point where the corresponding program is located.
In an example, it is described that the update information includes a configuration file of a first frequency point, where the first frequency point is any one of at least one frequency point. After the terminal obtains the configuration file of the first frequency point, the terminal demodulates and searches the first frequency point according to the information such as the frequency, the modulation mode, the symbol rate and the like in the configuration file of the first frequency point, and obtains data transmitted on the first frequency point, where the data includes a PMT (Program Map Table), the PMT includes related information of all programs transmitted on the first frequency point, generally, each Program corresponds to one Program number, and each Program number corresponds to one section (slice information). Taking the first program as an example for explanation, the first program is any one of a plurality of programs transmitted on the first frequency point, and if the program number of the first program is 0100, the section corresponding to the program number 0100 includes information such as a video PID (Packet Identifier), an audio PID, a video encoding mode, and an audio encoding mode of the first program, and then updates the description information of the first program recorded in the terminal according to the acquired information of each item of the first program.
And 103, updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal.
Illustratively, after obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information, the updated description information of all programs transmitted on the frequency point may be recorded in a program information database, and when a user needs to watch the program, the terminal receives the video signal and the audio signal of the program according to the description information of the program, and decodes the video signal and the audio signal of the program into an image and sound.
For example, after information such as a video PID (Packet Identifier), an audio PID, a video coding method, and an audio coding method of the first program is obtained, where the video PID is an Identifier of video information of the first program, and the audio PID is an Identifier of audio information of the first program. The method comprises the steps of obtaining video information of a first program in a first frequency point according to a video PID of the first program, then decoding the video information of the first program in a video coding mode of the first program, obtaining a display image of the first program, similarly obtaining audio information of the first program in the first frequency point according to an audio PID of the first program, then decoding the audio information of the first program in an audio coding mode of the first program, and obtaining playing sound of the first program. When a plurality of programs are transmitted in the first frequency point, the description information of the first program further needs to include a video PID and an audio PID of the first program, and when only the first program is transmitted in the first frequency point, the description information of the first program may only include the frequency and the encoding mode of the first frequency point. There are various common video encoding methods, such as MPAG2 and MPAG4, etc., where the video encoding method is MPAG2, which indicates that the first program is a standard definition program, and the video type is MPAG4, which indicates that the first program is a high definition program.
Therefore, when the terminal updates the program, the program is updated according to the update information, and the update information only comprises the configuration file of at least one frequency point in the frequency points related to the program updated by the server, so that the terminal does not need to demodulate and search each frequency point broadcast by the server, only needs to demodulate and search the frequency point related to the updated program included in the update information, and further updates the program information database, saves the time for the terminal to update the program, and improves the user experience.
Optionally, the update information includes a program version of the updated program of the server; the obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information includes: and when the current program version of the terminal is lower than the program version of the updated program of the server, acquiring the description information of each program transmitted on each frequency point in at least one frequency point according to the configuration file of at least one frequency point included in the updating information.
In the prior art, a terminal judges whether to need updating according to a received NIT version number, but the NIT has a lot of information, and the change of the NIT version number is not absolutely caused by program updating, so that if the program updating is determined according to whether the NIT version number changes, a lot of invalid updating can be caused, so that the program version can be added into the updating information, and whether to need the program updating is judged according to the change of the program version.
For example, after the server completes one update, an updated program version may be generated, in general, the updated program version is higher than the program version before the update, and the current highest program version is the latest updated program version. The updated program version of the server can be carried in the update information generated after the update of the server is completed, then the terminal firstly analyzes the program version in the update information after receiving the update information, then compares the program version in the update information with the current local program version, when the current program version of the terminal is lower than the program version of the updated program of the server, the description information of the program is obtained according to the configuration file of the frequency point included in the update information, and the program information database is updated according to the obtained description information of the program, when the current program version of the terminal is the same as the program version of the updated program of the server, or the current program version of the terminal is higher than the program version of the updated program of the server, the description information of the program does not need to be obtained, and further the program information database does not need to be updated, repeated updating or invalid updating is avoided, and the updating time is further saved.
Optionally, the update information includes a hardware identifier for identifying the terminal hardware information; the obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information includes: and when the hardware information of the terminal is matched with the hardware identifier, acquiring the description information of each program transmitted on each frequency point in at least one frequency point according to the configuration file of at least one frequency point included in the updated information.
In the example, for the set top box as an example, there are many manufacturers for producing set top boxes in the prior art, and there are many types of set top boxes produced by each manufacturer, different types of set top boxes can perform different functions, and the same function cannot be performed by all types of set top boxes. Different types of set top boxes are distinguished through hardware of the set top box, namely the set top boxes with different functions have different hardware, and each hardware has a unique identifier, for example, the unique identifier can be a manufacturer identifier or a model identifier. For example, it is assumed that the first set top box can complete the decoding of the high definition program, that is, the hardware of the first set top box has a function of decoding the high definition program, and the second set top box cannot complete the decoding of the high definition program, that is, the hardware of the second set top box does not have a function of decoding the high definition program. And when the server updates, the first program is converted into a high-definition program, and update information is generated for broadcasting. If the user uses the second set-top box, the first program cannot be updated, but the second set-top box cannot judge whether the updating can be performed or not, so that the second set-top box performs invalid updating on the program database after receiving the updating information, and the time for the user to watch the program is wasted. Therefore, the generated update information can carry a hardware identifier for identifying the terminal hardware information, and is used for indicating that only the set top box with the hardware information matched with the hardware identifier in the update information can update the program information database according to the update information.
Further, before the obtaining of the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information, the method includes: prompting the user whether to update the program information database; the obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information includes: when a user confirms to update the program information database, the description information of each program transmitted on each frequency point in at least one frequency point is obtained according to the configuration file of at least one frequency point included in the update information.
For example, since the server only relates to individual programs per update, if the terminal does not perform an update, viewing of most programs is not affected. Therefore, before the terminal acquires the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information, the terminal may first prompt a user whether the user needs to update, the prompt information may include a program identifier that needs to be updated, and if the user does not feel that the current program is watched and does not need to be updated, the terminal may not acquire the description information of the program and further does not need to update the program information database according to the description information of the program, thereby providing a more humanized choice for updating the program.
In practical application, the terminal may also monitor the NIT, and if the user is watching a program, the terminal may prompt the user to update the program when the terminal monitors that the NIT includes the update information and the program version in the update information is higher than the current version, so that the user can watch the latest program and the user experience is improved.
The embodiment of the invention provides a program updating method, which comprises the steps of acquiring updating information in a digital transmission signal sent by a server, wherein the updating information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server; acquiring description information of each program transmitted on each frequency point in at least one frequency point according to a configuration file of at least one frequency point included in the update information, wherein the description information of the program includes various parameters required by the terminal when the terminal plays the program; and updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal. Compared with the prior art, when the terminal updates the program, the terminal updates according to the update information, and the update information only includes the configuration files of all frequency points related to the program updated by the server, so that the terminal does not need to search for the program transmitted on each frequency point broadcast by the server to update, and only needs to demodulate and search all frequency points related to the updated program included in the update information, so that the program information database is updated, the time for the terminal to update the program is saved, and the user experience is improved.
An embodiment of the present invention provides a program updating method, as shown in fig. 2, for a server, where the method includes:
step 201, updating at least one program.
In practical applications, a server may broadcast a plurality of programs, and when the server updates the programs according to the needs of users, not all the programs are updated, but only individual programs which need to be updated are involved. For example, assuming that the first program is a standard definition program at present, the user needs to change the first program into a high definition program, and at this time, the server only needs to update the decoding mode of the first program; or the server needs to allocate frequency points for the second program in response to the user's demand, and the server needs to adjust and plan the current frequency point because the programs that can be transmitted on one frequency point are limited.
Step 202, generating update information, where the update information includes a configuration file of at least one frequency point in the frequency points related to the at least one program updated by the server.
For example, the configuration file may include information such as frequency, modulation mode, and symbol rate of a corresponding frequency point. After the server finishes updating at least one program, updating information can be generated, wherein the updating information comprises a configuration file of at least one frequency point in frequency points related to the program updated by the server. For example, it is assumed that the update of the server only relates to the first program, specifically, the first program which is originally a standard definition program is changed into a high definition program, so that the decoding mode of the first program needs to be updated, and at this time, the update information includes a configuration file of the frequency point of the first program. Or, assuming that the update of the server involves multiple programs, and the multiple programs may be transmitted on multiple frequency points, in practical applications, the update information may include a configuration file of at least one of the multiple frequency points, and the terminal updates only according to the configuration file of the frequency point included in the update information, and preferably, the update information includes the configuration file of each of the multiple frequency points.
In practical application, the update information may further include a program version, so that the terminal can determine whether to update; and a hardware identifier for identifying the terminal hardware information can be further included, so that the terminal can judge whether the updating can be carried out.
Step 203, sending the update information to the terminal.
Specifically, the server sends a digital transmission signal to the terminal in a timing cycle, where the digital transmission signal may include an NIT (Network Information Table), and then adds the update Information to the NIT to be sent together, so that the terminal obtains the update Information after receiving the digital transmission signal.
The embodiment of the invention provides a program updating method, which comprises the steps of updating at least one program; generating updating information, wherein the server updates a configuration file of at least one frequency point in the frequency points related to the at least one program; and sending the updated information to the terminal. Compared with the prior art, after the server finishes program updating, the updating information is generated, and the updating information only comprises the configuration file of the frequency point related to the updated program, so that when the terminal updates the program, the frequency point in the updating information is updated, and the program transmitted on all the frequency points broadcasted by the server does not need to be searched to update the program information database, so that the time for updating the program by the terminal is saved, and the user experience is improved.
The embodiment of the invention provides a program updating method, which is used for a terminal and a server, wherein the terminal is assumed to be a set top box, the server totally broadcasts 30 programs, the programs are respectively transmitted on 10 frequency points, the updating relates to 3 programs, namely a first program, a second program and a third program, wherein the first program is the existing program transmitted on a first frequency point, and the updating relates to the coding mode of the first program, namely the first program which is originally a standard definition program is converted into a high definition program; the second program is a newly added program, and the updating involves that the second program is planned to be transmitted on a second frequency point; the third program is the existing program originally transmitted on the second frequency point, and in order to plan the second program to be transmitted on the second frequency point, the program frequency points which can be transmitted on the second frequency point are limited, so that the updating relates to the frequency point adjustment of the third program, namely, the third program which is originally transmitted on the second frequency point is adjusted to be transmitted on the third frequency point. Therefore, the frequency points related to the first program, the second program, and the third program updated this time are the first frequency point, the second frequency point, and the third frequency point, respectively, and the embodiment of the present invention takes a digital transmission signal as an example of a TS (Transport Stream) code Stream, where the TS code Stream includes an NIT, as shown in fig. 3, the method includes:
step 301, the server updates the first program, the second program and the third program, and executes step 302.
The server converts the first program into a high-definition program according to the user requirement, adds a second program, and simultaneously adjusts the transmission frequency point of a third program in order to program the second program to be transmitted on the second frequency point. Therefore, the server updates the coding mode related to the first program and provides the plan of the transmission frequency points of the second program and the third program.
Step 302, the server generates update information and executes step 303.
In the prior art, the NIT included in the TS code stream includes configuration files of 10 frequency points of 30 programs currently broadcast by the server, and a data packet format of the configuration file of each frequency point is shown in table 1, that is, the NIT includes 10 data packets shown in table 1:
table 1 configuration file packet format
Wherein, descriptor _ tag represents a descriptor label for explaining the property of the data packet, i.e. the data packet is a data packet for describing a configuration file of a frequency point; descriptor _ length represents "descriptor length" for describing the length of the packet; frequency represents frequency and is used for explaining the frequency points described by the data packet; reserved _ future _ use is a reserved item and is used for carrying expansion information; FEC _ outer is FEC outer code; modulation indicates "modulation" and is used to explain the modulation mode of the frequency points described by the data packet; symbol _ rate represents a "symbol rate" for explaining the symbol rate of the frequency point described by the data packet; FEC _ inner is FEC inner code; the number of bits represents the number of bytes occupied by each item; bslbf (bitstring, left bit first) indicating that the character string is a bit string and the left bit is first; uimsbf (unsigned flag bit first) indicates that the character string is an unsigned integer with a high leading.
After the update is completed, the configuration files of the first frequency point, the second frequency point and the third frequency point are determined, that is, the information of the first frequency point, the second frequency point and the third frequency point, such as the frequency, the modulation mode and the symbol rate, is determined, then the update information is generated according to the configuration files of the first frequency point, the second frequency point and the third frequency point, and the data packet format of the update information is as shown in table 2:
table 2 update information packet format
Wherein, Descriptor _ tag represents a Descriptor label for identifying the update information, i.e. the update information identifier; descriptor _ length represents "Descriptor length" for explaining the length of the update information; linkage _ type represents "Link type"; data _ length represents "data length" for explaining the length of data from after data _ length in the update information; hardware _ version represents a Hardware identifier, and is used for explaining the identifier of Hardware capable of completing corresponding frequency point updating in the embodiment of the invention; program _ version represents "software identification", and is used to explain Program versions in the embodiments of the present invention; the selector _ length represents "selector length" and is used for explaining the lengths of configuration files of all frequency points included in a data packet of update information, and in the embodiment of the invention, the selector _ length is used for explaining the lengths of the configuration files of three frequency points, namely a first frequency point, a second frequency point and a third frequency point; a cable _ delivery _ system _ descriptor is a configuration file of a frequency point; the Private _ data _ byte is a reserved entry and is used for carrying extension information.
In practical application, the update information not only includes configuration files of the first frequency point, the second frequency point and the third frequency point, but also can carry a hardware identifier and a program version for identifying the terminal hardware information. In the embodiment of the invention, the updating involves converting the first program which is originally an expression program into a high-definition program, but the set top box of each type can not decode the high-definition program, so that the updating information carries a hardware identifier for identifying the terminal hardware information, the set top box is favorable for judging whether the updating can be carried out, and the updating efficiency is improved. And because the server will circulate the broadcast updating information, the set-top box will probably be updated when the set-top box is started up last time, and the set-top box will not need to be updated when the set-top box is started up this time, therefore, the updating information carries the program version, which is helpful for the set-top box to judge whether the set-top box needs to be updated.
Step 303, the server adds the update information in the NIT to broadcast by the digital transmission signal, and step 304 is executed.
In practical applications, the update information shown in table 2 meets the NIT standard, so the server can add the update information shown in table 2 into the NIT and broadcast the update information in a TS code stream timing cycle.
Step 304, the set-top box receives the digital transmission signal broadcasted by the server.
When a user needs to watch a television, a television and a set-top box are opened, the set-top box receives a TS code stream which is broadcasted by a server and comprises an NIT, the general NIT comprises information such as a Network identifier (Network _ ID), a Network name, transmission system parameters and a Service identifier (Service _ ID), and the transmission system parameters comprise all frequency point configuration files, program Service types and the like. In the prior art, as long as the set-top box receives the TS code stream and acquires the NIT, configuration files of all frequency points can be extracted, and channels can be automatically searched by Demux (demultiplexing) according to the extracted configuration files.
Step 305, the set-top box acquires the updated information in the digital transmission signal, and step 306 is executed.
Specifically, since the update information includes the update information identifier, such as the Descriptor _ tag shown in table 2, during initialization, an update information identifier rule may be preset in the set-top box and the server, for example, the update information identifier may be preset to 1011, the set-top box acquires the NIT after receiving the TS code stream, and then extracts the information identified to 1011, where the information is the update information, and the update information is the data packet shown in table 2. In the embodiment of the invention, the update information may include a hardware identifier, a program version, a configuration file of a first frequency point, a second frequency point, a third frequency point, and the like.
Step 306, the set-top box analyzes the update information to obtain the hardware identifier and the program version, and step 307 is executed.
For example, after the update information is acquired, the update information is a data packet in accordance with the NIT standard as shown in table 2, and the update information may be analyzed according to the NIT standard, and Hardware _ version in the update information is obtained through analysis, that is, the Hardware identifier; and analyzing to obtain Program _ version in the updating information, namely the Program version.
Step 307, judging whether the current program version of the set top box is lower than the program version of the updated program of the server; when the current program version of the set-top box is lower than the program version of the updated program of the server, executing step 308; when the current program version of the set-top box is not lower than the program version after the updated program of the server, step 313 is executed.
In practical application, the same program version rule may be preset in the set-top box and the server during initialization, and it is assumed that the program version after each update is the program version before update plus 1, the program version before update of the server is 2.1 and the program version after update is 2.2 in this embodiment, and the set-top box does not update the program synchronously every time the server updates the program, so that the difference between the program version of the set-top box and the program version of the server may be large, but as long as the set-top box is compared with the server, the program version is low, it may be determined that the set-top box needs to update the program information database.
For example, after acquiring the program version in the update information, the set top box may compare the program version in the update information with the current local program version, and when the current program version of the set top box is lower than the program version after the server updates the program, it indicates that the program version of the set top box is lower and the program information database needs to be updated; when the current program version of the set-top box is the same as the program version of the server after updating the program or the current program version of the set-top box is higher than the program version of the server after updating the program, the program version of the set-top box is higher, and the program can be played without updating the program information database.
Step 308, judging whether the hardware information of the set-top box is matched with the hardware identifier; when the hardware information of the set-top box matches the hardware identifier, executing step 309; when the hardware information of the set-top box does not match the non-identical hardware identification, step 313 is performed.
For example, there are many manufacturers for producing set-top boxes, and there are many types of set-top boxes produced by each manufacturer, and different types of set-top boxes can perform different functions, and the same function cannot be performed by all types of set-top boxes. Different types of set top boxes are distinguished through hardware of the set top box, namely the set top boxes with different functions have different hardware, each hardware has a unique identifier, and the hardware identifier can be a manufacturer identifier or a model identifier. For example, assume that a first set top box can perform modem of high definition programs, while a second set top box cannot perform modem of high definition programs.
In the embodiment of the invention, the server not only adjusts the frequency points of the second program and the third program, but also converts the first program into the high-definition program. If the user uses the second set-top box, the update of the first program cannot be completed. Therefore, the set-top box can firstly acquire the hardware identifier in the update information, and when the hardware information of the set-top box is matched with the hardware identifier, the set-top box is judged to be capable of updating the program; when the hardware information of the set-top box is not matched with the hardware identifier, the set-top box cannot finish the program updating, namely the program is normally played by ignoring the program updating. Invalid updating of the set top box which does not meet the requirements is avoided, and updating time is saved.
In practical application, the server may also perform program update according to the type of the set-top box, for example, the program update is performed only for the set-top boxes manufactured by preset manufacturers, and the program update is not performed for the set-top boxes manufactured by other manufacturers, so that personalized services can be provided for different users.
Step 309, the set-top box analyzes the update information, obtains configuration files of the first frequency point, the second frequency point and the third frequency point, and executes step 310.
When the set-top box determines that the program version is low, the program version needs to be updated, and the hardware identifiers are matched and can be updated, the update information can be continuously analyzed to obtain a cable _ delivery _ system _ descriptor in the update information, wherein the cable _ delivery _ system _ descriptor comprises three data packets shown in table 1, and the three data packets are a configuration file of a first frequency point, a configuration file of a second frequency point and a configuration file of a third frequency point.
Step 310, the set-top box prompts a user whether to update the program information database; when the user confirms to update the program information database, step 311 is executed; when the user cancels the update of the program information database, step 313 is performed.
After acquiring the configuration file of the first frequency point, the configuration file of the second frequency point and the configuration file of the third frequency point, the program information database of the set-top box can be updated, however, as the server broadcasts 30 programs, the updating only involves updating the first program, the second program and the third program, if the user does not watch the first program, the second program and the third program, the updating is not needed, and before the set-top box updates the programs, the user can be prompted whether to update the program information database of the set-top box.
For example, when the set-top box determines that a program needs to be updated and the program can be updated, a prompt message may be displayed on the screen of the television, where the prompt message may prompt the user whether the program needs to be updated, and the prompt message may also include a program name related to the update, so that the user may select whether the program needs to be updated. When a user determines that the program information database of the set-top box needs to be updated, the set-top box updates the program; when the user cancels the program updating, namely the user cancels the updating of the program information database of the set-top box, the set-top box normally plays the program.
And 311, the set top box respectively acquires the description information of each program transmitted on the updated first frequency point, the updated second frequency point and the updated third frequency point according to the configuration files of the first frequency point, the updated second frequency point and the updated third frequency point, and executes 312.
In an example, after acquiring a configuration file of a first frequency point program, a set top box demodulates and searches a frequency of the first frequency point according to information such as a frequency, a modulation mode, a symbol rate and the like in the configuration file, and acquires description information of each program transmitted on the first frequency point. Similarly, demodulating and searching the frequency of the second frequency point according to the information such as the modulation mode, the symbol rate and the like in the configuration file of the second frequency point, and acquiring the description information of each program transmitted on the second frequency point; and demodulating and searching the frequency of the third frequency point according to the information such as the frequency, the modulation mode, the symbol rate and the like in the configuration file of the third frequency point, and acquiring the description information of each program transmitted on the third frequency point.
Step 312, the set top box stores the updated description information of each program transmitted on the first frequency point, the second frequency point and the third frequency point in a program information database of the set top box, and step 313 is executed.
The program information database of the set-top box includes description information of each program recorded by the set-top box, and the description information of each program may include information such as a frequency point and a decoding mode of the program. In the embodiment of the present invention, the programs transmitted at the first frequency point include the first program, and therefore, the obtained description information of each program transmitted at the first frequency point includes the description information of the first program, and therefore, when the description information of each program transmitted at the first frequency point is stored, the update of the description information of the first program in the program information database can be completed. The programs transmitted on the same second frequency point comprise second programs, and because the current program information database of the set top box does not comprise the description information of the second programs, the description information of each program transmitted on the second frequency point is stored, and the storage of the description information of the second program is completed at the same time, so that the set top box can receive and decode the signals of the second information; the programs transmitted on the third frequency point comprise third programs, and because the frequency point of the third program in the current program information database of the set top box is the second frequency point and is different from the updated frequency point, the updating of the description information of the third program is completed when the description information of each program transmitted on the third frequency point is stored.
Step 313, playing the program.
When the program version of the set-top box is higher than the program version included in the update information or the program version of the set-top box is the same as the program version included in the update information, the program does not need to be updated, so that the program can be played normally.
Or, when the hardware information of the set-top box is not matched with the hardware identifier included in the update information, it indicates that the set-top box cannot complete the program update, and the program can be played normally.
Or the set top box needs and can update the program, but the user cancels the program update, so that the program update can be ignored and the program can be played normally.
It should be noted that, the sequence of the steps of the program updating method provided in the embodiment of the present invention may be appropriately adjusted, and the steps may also be increased or decreased according to the situation, for example, the sequence of step 307 and step 308 may be interchanged in the embodiment of the present invention, and step 307, step 308, or step 310 may also be omitted in actual applications. Any method that can be easily conceived by one skilled in the art within the technical scope of the present disclosure is covered by the present disclosure, and therefore, the detailed description thereof is omitted
Compared with the prior art, the program updating method provided by the embodiment of the invention has the advantages that the server firstly generates the updating information according to the updated program and sends the updating information to the set top box, when the set top box updates the program, the updating information is updated according to the updating information, and only the configuration file of the updated program is included in the updating information, so that the terminal does not need to search all programs broadcast by the server to update the program information database, only needs to search the updated program included in the updating information, further updates the program information database, saves the time for updating the program by the terminal, and improves the user experience.
An embodiment of the present invention provides a terminal 40, as shown in fig. 4, where the terminal 40 includes:
the first obtaining unit 401 is configured to obtain update information in a digital transmission signal sent by a server, where the update information includes a configuration file of at least one frequency point in frequency points related to a program updated by the server.
A second obtaining unit 402, configured to obtain description information of each program transmitted on each frequency point in the at least one frequency point according to a configuration file of the at least one frequency point included in the update information, where the description information of the program includes various parameters required when the terminal plays the program.
An updating unit 403, configured to update a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, where the program information database is used to store the description information of all programs recorded by the terminal.
The common terminal is a set-top box or a network terminal capable of realizing the function of the set-top box, and if the television and the set-top box are integrated into an all-in-one machine, the terminal can also be the all-in-one machine.
Therefore, when the terminal updates the programs, the first obtaining unit first obtains the update information, then the second obtaining unit obtains the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information, and finally the updating unit updates the program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the update information only includes the configuration file of the at least one frequency point in the frequency point related to the program updated by the server, so that the terminal does not need to search all programs broadcast by the server for updating, only needs to search the frequency points included in the update information, and further updates the program information database, saves the time for updating the programs by the terminal, and improves the user experience.
Optionally, the update information includes a program version of the updated program of the server; the second obtaining unit 402 is specifically configured to: and when the current program version of the terminal is lower than the program version of the updated program of the server, acquiring the description information of each program transmitted on each frequency point in at least one frequency point according to the configuration file of at least one frequency point included in the updating information.
Optionally, the update information includes a hardware identifier for identifying the terminal hardware information; the second obtaining unit 402 is specifically configured to: and when the hardware information of the terminal is matched with the hardware identifier, acquiring the description information of each program transmitted on each frequency point in at least one frequency point according to the configuration file of at least one frequency point included in the updated information.
Optionally, as shown in fig. 5, the terminal 40 further includes: a prompting unit 404, configured to prompt a user whether to update the program information database; the second obtaining unit 402 is specifically configured to: when a user confirms to update the program information database, the description information of each program transmitted on each frequency point in at least one frequency point is obtained according to the configuration file of at least one frequency point included in the update information.
The terminal provided by the embodiment of the invention firstly obtains the update information in the digital transmission signal sent by the server through the first obtaining unit, the update information comprises the configuration file of at least one frequency point in the frequency points related to the program updated by the server, then obtains the description information of each program transmitted on each frequency point in the at least one frequency point through the second obtaining unit according to the configuration file of at least one frequency point included in the update information, and further updates the program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point through the updating unit. Compared with the prior art, when the terminal updates the program, the program is updated according to the update information, and the update information only comprises the configuration file of at least one frequency point in the frequency points related to the program updated by the server, so that the terminal does not need to search all programs broadcast by the server to update the program information database, only needs to search the updated program included in the update information, and further updates the program information database, thereby saving the time for the terminal to update the program and improving the user experience.
An embodiment of the present invention provides a server 60, as shown in fig. 6, where the server 60 includes:
an updating unit 601, configured to update at least one program.
A generating unit 602, configured to generate update information, where the update information includes a configuration file of at least one of the frequency points related to the at least one program updated by the server.
A sending unit 603, configured to send the update information to the terminal.
The server provided by the embodiment of the invention updates at least one program through the updating unit; generating, by a generating unit, update information; and sending the updated information to the terminal through a sending unit. Compared with the prior art, the update information is generated after the server finishes the program update, and only the configuration file of the updated program is included in the update information, so that when the terminal updates the program, the program is updated according to the update information, and all programs broadcasted by the server do not need to be searched to update the program information database, so that the time for updating the program by the terminal is saved, and the user experience is improved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (4)

1. A program update method, for a terminal, the method comprising:
acquiring updating information in a digital transmission signal sent by a server, wherein the updating information comprises a configuration file of at least one frequency point in frequency points related to a program updated by the server and does not comprise a configuration file of frequency points related to a program not updated by the server;
the server directionally sends the updated information to the terminal with the IP address according to the IP address;
the configuration file comprises the frequency, the modulation mode and the symbol rate of the corresponding frequency point;
acquiring description information of each program transmitted on each frequency point in at least one frequency point according to a configuration file of at least one frequency point included in the update information, wherein the description information of the program includes various parameters required by the terminal when the terminal plays the program;
the description information of the program comprises the frequency and coding mode information of the frequency point where the corresponding program is located;
and updating a program information database according to the description information of each program transmitted on each frequency point in the at least one frequency point, wherein the program information database is used for storing the description information of all programs recorded by the terminal.
2. The method according to claim 1, wherein the update information includes a program version after the server updates the program;
the obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information includes:
and when the current program version of the terminal is lower than the program version of the updated program of the server, acquiring the description information of each program transmitted on each frequency point in at least one frequency point according to the configuration file of at least one frequency point included in the updating information.
3. The method of claim 1, wherein the update information includes a hardware identifier for identifying hardware information of the terminal;
the obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information includes:
and when the hardware information of the terminal is matched with the hardware identifier, acquiring the description information of each program transmitted on each frequency point in at least one frequency point according to the configuration file of at least one frequency point included in the updated information.
4. The method of claim 1,
before the obtaining of the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information, the method includes:
prompting the user whether to update the program information database;
the obtaining the description information of each program transmitted on each frequency point in the at least one frequency point according to the configuration file of the at least one frequency point included in the update information includes:
when a user confirms to update the program information database, the description information of each program transmitted on each frequency point in at least one frequency point is obtained according to the configuration file of at least one frequency point included in the update information.
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