CN101252401B - Terminal equipment, system and method for downloading program data - Google Patents

Abstract

The invention discloses a method, system and terminal equipment for downloading program data, belonging to the communication field. The method includes: receiving data sent by an electronic program index server; displaying program information to the user according to the data; determining that the focus of the user's browsing reaches a preset time when the current program stays, and downloading the program information from the electronic program index server. Describe the non-plain text content corresponding to the current program. The system includes: a terminal device and a server. The terminal device includes: a receiving module, a display module and a delayed download module. The present invention downloads the non-plain text content corresponding to the current program from the server when the focus of the user's browsing reaches the preset time, and does not need to download all the data on the server to the terminal device in advance, only downloads the real The required non-plain text content saves the space occupied by the non-plain text content on the terminal device, thereby reducing the requirement on the capacity of the terminal device.

Description

Method, system and terminal equipment for downloading program data

technical field

The invention relates to the communication field, in particular to a method, system and terminal equipment for downloading program data.

Background technique

IPTV (IP Television, IP TV) is a new and popular service. It provides users with basic services such as live video, on-demand, and TV time-shifting through IP technology, and provides EPG (Electronic Program Guide, Electronic Program Guide) for users to conveniently and quickly Browse live and on-demand programs and value-added services.

EPG is the portal provided by IPTV services to users, and is an important part of IPTV. The response speed of EPG directly affects user satisfaction. However, affected by the speed and quality of the network, the response speed of EPG has become a difficult problem for IPTV.

The display of EPG can be through page transmission or data transmission. The page transmission adopts the relatively popular browser/server mode, and the data analysis is completed by the Web server, and the generated page is transmitted to the browser of the IPTV terminal for display; the data transmission method Using the client/browser mode, the data analysis is completed by the IPTV terminal, and the EPG server only needs to send the updated program list data to the IPTV terminal. Since the data transmission mode is less affected by the network and has good scalability, it is gradually adopted by everyone.

Limited by the performance of IPTV terminals, no matter in the way of data transmission or page transmission, pictures (including advertisements, posters, etc.) are generally stored on the EPG server, and when users browse a certain program, they download pictures from the server. Because the picture is relatively large, it takes a lot of time to download and analyze the picture; if there is a lot of updated program data, it will also take a long time to download and analyze the updated data; thereby affecting the response speed of the EPG.

For this reason, the prior art provides a method for downloading EPG data, including:

When the user turns on the device, all EPG data is downloaded to the IPTV terminal. When the user browses the program list of the IPTV terminal, the EPG data is read from the local storage. When the EPG data is updated, the updated EPG data is downloaded.

In the process of realizing the present invention, the inventor finds that the method for downloading EPG data provided by the prior art has at least the following problems:

Occupies a lot of storage space on IPTV terminals: There are generally thousands or tens of thousands of on-demand programs. Downloading the data of these programs to IPTV terminals requires a large storage space, and some on-demand programs are rarely accessed. Relevant data is rarely used, resulting in waste of terminal equipment space usage;

Slow start-up time of the IPTV terminal: Every time the IPTV terminal starts up, it needs to download the updated part of the EPG data.

Contents of the invention

In order to improve the space utilization rate of the IPTV terminal and the start-up speed of the IPTV terminal, the embodiments of the present invention provide a method, a system and a terminal device for downloading program data. Described technical scheme is as follows:

A method for downloading program data, the method comprising:

According to the user's browsing situation, download the data sent by the electronic program index server by classification or segment;

present program information to the user based on the data;

When it is determined that the focus of the user's browsing reaches the preset time when the current program stays, download the non-plain text content corresponding to the current program from the electronic program index server, and the non-plain text content includes pictures, videos or audio at least one;

Wherein, the method of presenting the program information to the user according to the data is as follows: storing the data according to the structure and encapsulating them with Extensible Markup Language HTML tags, generating an HTML file, parsing the HTML file, and displaying the parsed data in the form of a web page After the HTML file.

A system for downloading program data, comprising a terminal device and a server, the terminal device comprising:

The receiving module is used to download the data sent by the server according to the browsing situation of the user by classifying or segmenting;

a display module, configured to display program information to the user according to the data received by the receiving module;

The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send a request to the server to download the non-plain text content corresponding to the current program, and the non-plain text content includes pictures, at least one of video or audio;

Wherein, the display module specifically includes:

a data parsing unit, configured to store the data received by the receiving module according to the structure;

An Extensible Markup Language HTML encapsulation unit, configured to encapsulate the data and HTML tags stored by the data parsing unit according to the structure to generate an HTML file;

An HTML parsing unit, configured to parse the HTML file generated by the HTML encapsulation unit, and display the parsed HTML file in the form of a web page;

The server is configured to receive a request sent by the terminal device for downloading the non-plain text content corresponding to the current program, read the non-plain text content corresponding to the current program from a database or memory, and download the non-plain text content corresponding to the current program. The non-plain text content is sent to the terminal device.

A terminal device, the terminal device comprising:

The receiving module is used to classify or segment download the data of the server according to the browsing situation of the user;

a display module, configured to display program information to the user according to the data received by the receiving module;

The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send and download the non-plain text content corresponding to the current program from the server, and the non-plain text content includes pictures, videos or at least one of audio;

Wherein, the display module specifically includes:

a data parsing unit, configured to store the data received by the receiving module according to the structure;

An Extensible Markup Language HTML encapsulation unit, configured to encapsulate the data and HTML tags stored by the data parsing unit according to the structure to generate an HTML file;

The HTML parsing unit is configured to parse the HTML file generated by the HTML encapsulation unit, and display the parsed HTML file in the form of a web page.

The beneficial effects of the technical solution provided by the embodiments of the present invention are:

When the focus of the user's browsing reaches the preset time of the current program, the non-plain text content corresponding to the current program is downloaded from the server. On the basis of not affecting the user's reading of the program data, it is not necessary to upload all the data on the server in advance. They are all downloaded to the terminal, and only the non-plain text content that the user really needs is downloaded, which saves the space occupied by the picture data on the terminal, thereby reducing the requirements for the terminal device and improving the startup speed of the terminal.

Description of drawings

FIG. 1 is a flowchart of a method for downloading program data provided by Embodiment 1 of the present invention;

Fig. 2 is the flow chart of the method for downloading the VOD poster provided by Embodiment 1 of the present invention;

3 is a structural diagram of a system for downloading program data provided by Embodiment 3 of the present invention;

4 is a structural diagram of another system for downloading program data provided by Embodiment 3 of the present invention;

5 is a structural diagram of a third system for downloading program data provided by Embodiment 3 of the present invention;

6 is a structural diagram of a fourth system for downloading program data provided by Embodiment 3 of the present invention;

FIG. 7 is a structural diagram of a terminal device provided in Embodiment 4 of the present invention;

FIG. 8 is a structural diagram of another terminal device provided in Embodiment 4 of the present invention;

FIG. 9 is a structural diagram of a terminal device provided in Embodiment 5 of the present invention;

FIG. 10 is a structural diagram of a terminal device provided by Embodiment 6 of the present invention.

Detailed ways

The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

When the IPTV terminal in the embodiment of the present invention determines that the focus of the user's browsing reaches the preset time when the current program stays, it downloads the picture, video or audio corresponding to the current program from the electronic program index server, and can download the program data that the user really needs in time. , does not need to pre-store a large amount of program data, saving a lot of space.

Among them, the IPTV terminal can be a set-top box, or a mobile phone terminal and other equipment; the program data not only includes program information described in words, but also includes non-plain text content representing the program in the form of pictures, videos and audio. The storage space is relatively large, and the embodiment of the present invention adopts a delayed download method for these non-plain text contents.

Example 1

Referring to Fig. 1, the present embodiment provides a method for downloading program data, the method comprising:

101: Receive data sent by an electronic program index server;

102: Display program information to the user according to the received data;

103: When it is determined that the user's browsing focus stays on the current program for a preset time, download the non-plain text content corresponding to the current program from the electronic program index server, wherein the non-plain text content includes: one of pictures, videos or audio One or any combination, for example, when the data corresponding to the current program includes picture data and video data, the picture data and video data will be downloaded at the same time.

When the user browses programs, when the focus moves to a certain program, if the program has corresponding posters, advertisements, video or audio program data stored on the EPG server, the IPTV terminal needs to download the corresponding program data from the EPG server, Because there will be a certain delay in the transmission of program data such as pictures (posters or advertisements), video or audio, the movement of the interface focus will be slowed down, which will affect the user experience. In order to improve the response speed of the interface, the present embodiment adopts the method of delay downloading, referring to Fig. 2, is set-top box with IPTV terminal, and program data is VOD (Video On-demand, video on demand) poster is example, and its downloading process is specifically as follows:

201: When the user browses the VOD program list, the user moves the focus position on the EPG through the remote controller.

202: When the focus is moved from one program to another, the timer (the time the focus stays on a certain program) is set to 0, and the timer starts to record the time the focus stays on the current program;

203: Determine whether the time the focus stays on the current program reaches the preset threshold of the timer, if yes, go to 204; otherwise, go to 206; where the preset threshold can be the default value of the timer, or can be set as needed ;

204: Download the poster of the current program from the EPG server;

At this time, the timing of the timer reaches the preset threshold, indicating that the user wishes to obtain specific information on the program, and then downloads the poster of the current program from the EPG server;

205: Update the picture on the display interface to the poster corresponding to the current program;

206: When the count of the timer does not reach the preset threshold, the focus moves, the poster of the current program is not downloaded, and the timer is cleared to 0.

In this embodiment, when the user's browsing focus stays on the current program for a preset time, the non-plain text content corresponding to the current program is downloaded from the EPG server. The EPG data on the EPG server is downloaded to the IPTV terminal, and only the non-plain text content that the user really needs is downloaded, which saves the space occupied by the non-plain text content on the IPTV terminal, thereby reducing the requirement for the capacity of the IPTV terminal and improving the IPTV terminal capacity. startup speed.

Example 2

This embodiment provides a method for downloading program data, which is implemented by downloading data by category or by downloading data by segment. This method can be used in combination with the method for downloading program data provided in Embodiment 1, or it can be used alone use.

1) The way to classify and download data is as follows:

When the user enters the on-demand program of the current level, the IPTV terminal will send a download request to the EPG server, informing the EPG server of the level of the program that the user enters, so as to download the data of the next level sub-column of the current level of on-demand program or the current level of on-demand program The content data of the column;

When the EPG server receives a request to enter a column of a certain level, it reads the next-level sub-section of the column in the database or memory or the content data of the program corresponding to the column of this level, and then reads the program data of this level Send to IPTV terminal.

For example: when entering the on-demand interface for the first time, only the data related to the first-level on-demand program is downloaded from the EPG server and displayed to the user. When the user moves the focus to enter the next-level on-demand program, the corresponding on-demand program is sent to the EPG server Column information download request.

2) The way to download data in segments is as follows:

When the sub-sections or program data of the current level of on-demand programs entered by the user exceed the preset number, the IPTV terminal will download the specified number of sub-sections of the next-level sub-sections of the current level of on-demand programs from the EPG server successively according to the user's browsing situation data or the content data of the current level of on-demand program.

Wherein, the browsing situation of the user has multiple, for example: the next level sub-column of the on-demand program of current level is 200 altogether, when the user browses the on-demand program of this current level for the first time, download the sub-column of next level sub-column from EPG server For the first 50 sub-columns, when the user browses to the 40th sub-column, download the first 100 sub-columns from the next 150 sub-columns, and when the user browses to the 140th sub-column, download the remaining 50 sub-columns.

The number of content data downloaded from the EPG server to the next level of sub-column data or the current level of on-demand program can be set on the EPG server side, or the IPTV terminal can notify the EPG server when requesting to download data, or use the system default number, for example 20.

The above method of downloading data by segment is as follows:

When the user enters the on-demand program at the current level, the IPTV terminal sends a request for the current on-demand program to the EPG server;

After the EPG server receives the request of the column currently on demand, it reads the subsection or program data of the column currently on demand from the database or memory, if the subsection or program data M of this level column is relatively large, then only the subsection The first N sub-columns or program data are sent to the IPTV terminal.

When the user is about to browse the Nth sub-column or program data of this column, the IPTV terminal requests new program data from the EPG server, and the EPG server will read the next N sub-columns or program data of this column to the IPTV terminal, and the IPTV terminal will generate The corresponding file is displayed to the user.

For example: there are 1000 on-demand programs under a certain on-demand program, when the user chooses to enter this on-demand program, the first 200 on-demand programs are downloaded first, analyzed and displayed. When the user turns the page and moves the focus to the 180th on-demand program, he sends a request to the EPG server for information on the last 200 on-demand programs.

When the above-mentioned mode of classifying and downloading data or the mode of segment downloading data is used in conjunction with the downloading method that embodiment 1 provides, first the partial content under the current on-demand column is displayed to the user by the mode of classifying or segment downloading data, when the user When there is no sub-section under the browsed program, if the focus of the user's browsing reaches the preset time when the program stays, download the non-plain text content corresponding to the current program from the EPG server.

The classified and segmented download methods provided by this embodiment download program data, instead of downloading all program information to the local when the IPTV terminal is turned on, but downloading relevant content when the user really needs it, which improves the IPTV terminal. The startup speed speeds up the response of the interface, thereby improving the user experience.

Example 3

Referring to Figure 3, a system for downloading program data includes a terminal device and a server, wherein the terminal device includes:

The receiving module is used to receive the data sent by the server;

a display module, configured to display program information to the user according to the data received by the receiving module;

The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send a request to the server to download the non-plain text content corresponding to the current program. The non-plain text content includes pictures, videos or audio at least one of

The server is used to receive the request from the terminal device for downloading the non-plain text content corresponding to the current program, read the non-plain text content corresponding to the current program from the database or memory, and send the non-plain text content corresponding to the current program to the terminal device.

Below, the set-top box is used as the IPTV terminal, and the EPG server is used as the server providing program data. The server's media stream and play out. Referring to Fig. 4, it is a structural diagram of a system for downloading program data, the system includes: a set-top box and an EPG server, wherein the set-top box includes:

A receiving module, configured to receive data sent by the EPG server;

A display module, configured to display program information to the user according to the data received by the receiving module;

The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send a request for downloading the non-plain text content corresponding to the current program to the EPG server.

Among them, the display module specifically includes:

The data parsing unit is used to store the data received by the receiving module according to a certain structure;

HTML (Hypertext Markup Language, Extensible Markup Language) encapsulation unit is used to encapsulate the data and HTML tags stored in the data analysis unit according to the structure to generate HTML files;

The HTML parsing unit is configured to parse the HTML file generated by the HTML encapsulation unit, and display the parsed HTML file in the form of a web page.

The function of the EPG server is to provide program list data, including program index data and program data, to the set-top box. include:

The data reading module is used to receive the download request sent by the top box, and read the corresponding data from the database or memory according to the content of the request;

The data sending module is used to send the data read by the data reading module to the set-top box.

The specific process of downloading program data through the system provided in Figure 4 is as follows:

1) The set-top box receives the request command sent by the user, such as: the button operation information of the remote controller, and sends the request command to the data reading module of the EPG server through a network transmission protocol (for example, HTTP (Hypertext Transfer Protocol, hypertext transfer protocol)) ;

2) After the data reading module of the EPG server receives the request command, it reads the data corresponding to the request from the database or memory and hands it over to the data sending module;

3) The data sending module of the EPG server sends data to the receiving module of the set-top box through the HTTP protocol;

4) After the receiving module of the set-top box receives the data, the data is delivered to the display module, and the display module stores the data according to a certain structure through the data analysis unit;

5) The HTML encapsulation unit encapsulates the data stored by the structure and the HTML tags to generate an HTML file;

6) The HTML parsing module parses the generated HTML file, and displays it on the set-top box in the form of a web page;

7) When the user focus stays on the current webpage for a preset time, and the webpage has non-plain text content (picture, video or audio), the HTML parsing unit notifies the delayed download module to download the non-plain text content of the webpage, The downloaded non-text content is then played or displayed by the presentation module. Wherein, the preset time can be set in advance according to needs, for example, 1 second or 2 seconds, etc., and can be realized by timing with a timer on the display interface during specific implementation.

Referring to Fig. 5, in order to further improve the performance of downloading data, the terminal device also includes:

The classified downloading module is used for downloading from the server the data of the sub-categories of the next level of the program of the current level or the content data of the program of the current level when the user enters the program of the current level.

Referring to Figure 6, for certain levels of sub-columns or program data are relatively large, the terminal equipment also includes:

Segment download module, used for when the user enters the on-demand program of the current level, according to the browsing situation of the user, download the specified number of sub-column data of the next level of the on-demand program of the current level or the content of the current level of the on-demand program from the server data.

In this embodiment, when the focus of the user's browsing reaches the preset time when the current program stays, the non-plain text content (picture, video or audio) corresponding to the current program is downloaded from the server, without affecting the user's reading of the EPG data. , it is not necessary to download all the EPG data on the EPG server to the terminal device in advance, and only download the non-plain text content that the user really needs, which saves the space occupied by the picture data on the terminal device. At the same time, through classification or segment download, further The requirement on the capacity of the terminal equipment is reduced, and the startup speed of the terminal equipment is improved.

Example 4

Referring to FIG. 7, this embodiment provides a terminal device, including:

A receiving module, configured to receive data from the server;

a display module, configured to display program information to the user according to the data received by the receiving module;

The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send and download the non-plain text content corresponding to the current program from the server. The non-plain text content includes at least one of the pictures, videos or audio A sort of.

Referring to Figure 8, the terminal equipment also includes:

The classified downloading module is used for downloading from the server the data of the sub-categories of the next level of the program of the current level or the content data of the program of the current level when the user enters the program of the current level.

The terminal equipment also includes:

Segment download module, used for when the user enters the on-demand program of the current level, according to the browsing situation of the user, download the specified number of sub-column data of the next level of the on-demand program of the current level or the content of the current level of the on-demand program from the server data.

The terminal device provided in this embodiment may be a set-top box or a mobile phone terminal.

In this embodiment, when the focus of the user's browsing reaches the preset time of the current program, the picture corresponding to the current program is downloaded from the server. Both are downloaded to the terminal device, and only the non-plain text content that the user really needs is downloaded, which saves the space occupied by the non-plain text content on the terminal device. The startup speed of the terminal device is improved.

Example 5

Referring to FIG. 9, this embodiment provides a terminal device, including:

A receiving module, configured to receive data sent by an electronic program index server;

A display module, configured to display program information to the user according to the data received by the receiving module;

The classification downloading module is used for downloading the next-level sub-category data of the current-level on-demand program or the content data of the current-level on-demand program from the electronic program index server when the user enters the current-level on-demand program.

The terminal device provided in this embodiment may be a set-top box or a mobile phone terminal.

The terminal device provided in this embodiment downloads program data in a classified download mode, instead of downloading all the program information to the local when the terminal device is turned on, but downloading relevant content when the user really needs it, which improves the user experience of the terminal device. The startup speed speeds up the response of the interface, thereby improving the user experience.

Example 6

Referring to FIG. 10, this embodiment provides a terminal device, which is characterized in that the terminal device includes:

A receiving module, configured to receive data sent by an electronic program index server;

A display module, configured to display program information to the user according to the data received by the receiving module;

The segment downloading module is used for sequentially downloading from the electronic program index server a specified number of data of sub-categories of the next level of on-demand programs of the current level or content data of the on-demand programs of the current level according to the user's browsing situation.

The terminal device provided in this embodiment may be a set-top box or a mobile phone terminal.

The terminal device provided in this embodiment downloads program data in segmented download mode, instead of downloading all the program information to the local when the terminal device is turned on, but downloading relevant content when the user really needs it, which improves the terminal device. The boot speed is faster, the response of the interface is accelerated, and the user experience is improved.

All or part of the technical solutions provided by the above embodiments can be realized by software programming, and the software program is stored in a readable storage medium, such as a hard disk, an optical disk or a floppy disk in a computer.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A method for downloading program data, characterized in that the method comprises: According to the user's browsing situation, download the data sent by the electronic program index server by classification or segment; present program information to the user based on the data; When it is determined that the focus of the user's browsing reaches the preset time when the current program stays, download the non-plain text content corresponding to the current program from the electronic program index server, and the non-plain text content includes pictures, videos or audio at least one; Wherein, the method of presenting the program information to the user according to the data is as follows: storing the data according to the structure and encapsulating them with Extensible Markup Language HTML tags, generating an HTML file, parsing the HTML file, and displaying the parsed data in the form of a web page After the HTML file. 2. The method for downloading program data according to claim 1, wherein the downloading the non-plain text content corresponding to the current program from the electronic program index server comprises: The IPTV terminal sends a request for downloading the non-plain text content corresponding to the current program to the electronic program index server; The IPTV terminal receives the non-plain text content corresponding to the current program of the electronic program index server, and the non-plain text content is obtained from a database or a memory read in and sent over the network transport protocol. 3. The method for downloading program data according to claim 1, wherein the data sent by the classified downloading electronic program index server specifically includes: When the user enters the on-demand program of the current level, the IPTV terminal downloads the next-level sub-column data of the on-demand program of the current level or the content data of the on-demand program of the current level from the electronic program index server. 4. The method for downloading program data as claimed in claim 1, characterized in that, when the sub-sections or program data of the current level of on-demand program entered by the user exceed the preset number, the electronic program index server for segment downloading The data sent specifically includes: According to the browsing situation of the user, download the specified number of sub-programme data of the next level of the on-demand program of the current level or the content data of the on-demand program of the current level from the electronic program index server successively. 5. A system for downloading program data, comprising a terminal device and a server, characterized in that the terminal device comprises: The receiving module is used to download the data sent by the server according to the browsing situation of the user by classifying or segmenting; a display module, configured to display program information to the user according to the data received by the receiving module; The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send a request to the server to download the non-plain text content corresponding to the current program, and the non-plain text content includes pictures, at least one of video or audio; Wherein, the display module specifically includes: a data parsing unit, configured to store the data received by the receiving module according to the structure; An Extensible Markup Language HTML encapsulation unit, configured to encapsulate the data and HTML tags stored by the data parsing unit according to the structure to generate an HTML file; An HTML parsing unit, configured to parse the HTML file generated by the HTML encapsulation unit, and display the parsed HTML file in the form of a web page; The server is configured to receive a request sent by the terminal device for downloading the non-plain text content corresponding to the current program, read the non-plain text content corresponding to the current program from a database or memory, and download the non-plain text content corresponding to the current program. The non-plain text content is sent to the terminal device. 6. The system for downloading program data according to claim 5, wherein the receiving module is specifically used for downloading the current-level on-demand program from the server when the user enters the current-level on-demand program Sub-programme data at the next level or content data of the on-demand program at the current level. 7. The system for downloading program data according to claim 5, wherein the receiving module is specifically configured to download program data from the server successively according to the user's browsing situation when the user enters the current level of on-demand program. The specified number of sub-column data of the current level of on-demand programs or the content data of the current level of on-demand programs. 8. A terminal device, characterized in that the terminal device comprises: The receiving module is used to classify or segment download the data of the server according to the browsing situation of the user; a display module, configured to display program information to the user according to the data received by the receiving module; The delayed download module is used to determine that when the focus of the user's browsing reaches the preset time when the current program stays, send and download the non-plain text content corresponding to the current program from the server, and the non-plain text content includes pictures, videos or at least one of audio; Wherein, the display module specifically includes: a data parsing unit, configured to store the data received by the receiving module according to the structure; An Extensible Markup Language HTML encapsulation unit, configured to encapsulate the data and HTML tags stored by the data parsing unit according to the structure to generate an HTML file; The HTML parsing unit is configured to parse the HTML file generated by the HTML encapsulation unit, and display the parsed HTML file in the form of a web page. 9. The terminal device according to claim 8, wherein the receiving module is specifically configured to download the next level of the current level of the on-demand program from the server when the user enters the current level of the on-demand program The sub-programme data or the content data of the on-demand program at the current level. 10. The terminal device according to claim 8, wherein the receiving module is specifically configured to, when the user enters the on-demand program of the current level, download a specified number of programs successively from the server according to the browsing situation of the user. The data of the next level sub-section of the current level of on-demand program or the content data of the current level of on-demand program.

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