KR100813957B1 - Storage medium including meta data for enhanced search and event-generation, display playback device and display playback method thereof - Google Patents

Abstract

Disclosed are a storage medium, a reproducing apparatus, and a reproducing method, in which meta information for providing an extended retrieval and event generation function is recorded.

A storage medium having recorded moving picture information according to the present invention includes moving picture data; And meta information indicating information for searching for a section of the video data satisfying a predetermined search condition among the video data and information for generating an event when playing the searched video data of the searched section.

Accordingly, the extended search function using various search keywords is provided, and a play start event and / or a play completion event of a searched section may be generated and applied as an API for program data or browser data.

Description

Storage medium including meta data for enhanced search and event-generation, display playback device and display playback method

1 is a view showing the type of data recorded on a storage medium according to an embodiment of the present invention;

2 is a block diagram of a playback apparatus according to a preferred embodiment of the present invention;

3 is a detailed block diagram of a playback apparatus according to a preferred embodiment of the present invention;

4a to 4c are exemplary implementations of meta information for extended search and event generation according to the present invention;

5a and 5b is an application example using the extended search and event generation function according to the present invention,

6 is a flowchart illustrating a reproduction method for providing an extended search and event generation function according to the present invention.

The present invention relates to playback of a storage medium, and more particularly, to a storage medium, a playback device, and a playback method, in which meta information for providing an extended search and event generation function is recorded.

In a storage medium such as a DVD, AV data (Audio-Visual Data or moving image data stream) including video and audio or subtitles that are compression-coded according to a standard such as MPEG (Motion Picture Experts Group) is recorded. In addition, additional information such as encoding attributes of the moving picture data stream or the reproduction order of moving pictures is further recorded.

Accordingly, it is common for moving pictures recorded on the storage medium to be reproduced in order according to the reproduction information, and sometimes, they are reproduced by jumping in chapter units during reproduction of the AV data.

However, the conventional storage medium does not provide a method of jumping and playing back to an arbitrary scene according to a search criterion desired by the user. In other words, a function of moving to an arbitrary position of AV data according to a search criterion desired by a user such as a scene unit search, a character unit search, or a background location unit search is provided. There was a problem that various search was difficult

On the other hand, in a storage medium in which a moving picture is recorded, a program that provides an interactive function with a user, such as a game or a chat using a reproduced moving picture, cannot be recorded together with the moving picture information in one storage medium.                         

In addition, an application that provides a browsing function for importing and displaying information related to a moving picture reproduced from a markup document may not be recorded on a single storage medium together with moving picture information.

That is, the conventional storage medium recording a moving picture has a problem in that it is not possible to provide an additional function such as a program function for providing interactive functions with a user in addition to the reproduction of moving picture information, and a browsing function for reproducing related information from markup documents.

Further, while providing various search functions according to the search criteria desired by the above-described users, and at the same time, when playing according to each search result, a program function that provides an interactive function with the user, or a browsing function that reproduces related information from a markup document, etc. There was a problem that can not be provided with additional features such as.

Accordingly, an object of the present invention is to provide a storage medium in which meta information is recorded to provide an extended search and event generation function in order to solve the above problems.

In addition, another object of the present invention is to use an API (Application Program Interface) for the program function or the browsing function at the same time using the extended information and meta information that provides the extended search and event generation function recorded in the storage medium It is to provide a playback apparatus for generating an event (including information, status information, etc.).

The object is moving picture data; And meta-information indicating information for retrieving a section of the video data that satisfies a predetermined search condition among the video data and information for generating an event when reproducing the searched video data of the searched section. Is achieved.

The meta information includes search keyword information to be compared with a predetermined search condition received from the outside; Location information indicating a location of a section of video data corresponding to search keyword information; And section information for controlling occurrence of an event for a playback section during playback of the video data section based on the location information.

The section information preferably represents time information from the start of the playback of the playback section to the time when the playback is completed according to the search result.

The event preferably includes a playback start event and / or a playback end event, and the event is preferably used as an application program interface (API) for an engine providing additional functions such as program function or browser function. Is used to continuously play back scenes of video data corresponding to specific search keyword information, or play back scenes of video data corresponding to specific search keyword information, and go to search menu for user selection again when playback end event occurs It is preferable to use to.

The meta information is recorded in a playlist mark, which is a set of marks indicating a specific position of the video data, included in a playlist that is a playback unit of the video data, separately recorded from a playlist mark included in the playlist, or played. It is preferably written separately from the list.

The meta information is preferably composed of data in text form or binary form, and preferably in markup language form.

On the other hand, according to another field of the present invention, the above object is to generate information for retrieving a section of the video data that satisfies a predetermined search condition among the video data and the video data and to generate an event during playback of the searched video data A search unit for searching for a section of video data satisfying a predetermined search condition with reference to the meta information from a storage medium characterized by including meta information indicating information; And a playback control unit for reproducing the video data of the searched section and generating an event for the section using meta information.

On the other hand, according to another field of the present invention, the object is (a) receiving a predetermined search condition; (b) information for searching for a section of the video data satisfying a predetermined search condition among the video data and the video data, and meta information indicating information for generating an event when the video data of the searched section is played. Searching for a section of video data satisfying a search condition with reference to meta information from a storage medium; And (c) reproducing the video data of the searched section and generating an event for the section using meta information.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

The storage medium according to an exemplary embodiment of the present invention includes meta data used for extended search and event generation, as well as moving picture data used for playing a movie and navigation information for controlling the play. In the meta information, search information, position information, section information, and the like of video data in which each search keyword exists. Therefore, the playback of the video data can be started from the position where the specific search keyword input by the user exists. In this case, the presentation engine in the playback apparatus generates a section playback start event and a section playback completion event at the playback start time and the completion time of the section including the corresponding search keyword, respectively. Accordingly, a browser engine or a program engine that controls the presentation engine may perform a specific operation on the corresponding event.

1 is a diagram illustrating the types of data recorded on a storage medium according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a core data 100, full data 110, and system data 120 are recorded in a storage medium according to the present invention.

The core data 100 is data for reproduction of a moving image, and includes compressed and encoded moving image information 102 and navigation information 101 for controlling reproduction of the moving image information. The moving picture information 102 includes a Clip A / V Stream file encoded by a standard such as MPEG, as a recording unit, and a Clip Information file including encoding attributes, entry point information, and the like of a Clip A / V Stream file. The reproduction unit also includes a playitem (PlayItem) designating IN and OUT time positions of the Clip Information file and a playlist (PlayList) consisting of a plurality of playitems. Accordingly, the video information 102 may be played with reference to the navigation information 101 of the storage medium, and the user may watch a video such as a high quality movie.

On the other hand, the full data 110 is data for providing an additional function in addition to the playback of the video, from the markup document storing the program data 111 and / or information related to the video for providing an interactive function with the user. Browser data 112 for retrieving and playing related information. If the additional function is not used, the full data 110 may not be included.

The program data 111 includes a game function using a video, a function of displaying a director's commentary while playing a part of a video, a function of displaying other additional information while playing a part of a video, or a video. It can provide the ability to chat. Programs using the Java language may be included.

The browser data 112 is composed of a command for retrieving related information from a markup document storing information related to a video, and the aforementioned command is a markup language such as HTML (HyperText Markup Language). And / or an executable scripting language such as ECMA Script. Accordingly, the relevant information can be taken from the markup document storing the information related to the video and played along with the video. For example, related information such as a recent news about a movie actor, a news about an event held about a movie, or an updated subtitle associated with a movie recorded on a web page or another file, and the like may be retrieved and played with the movie. . In addition, the full data 110 may include another data type that provides other additional functions in addition to playing the video.

On the other hand, the system data 120 is data for controlling the reproduction of the core data 100 and / or the full data 110 and includes startup information 121 and title information 122. The startup information 121 indicates the position of the object to be reproduced first when the storage medium is reproduced by the playback apparatus, and the title information 122 includes entry point information indicating the position of each object to be reproduced. .

Meanwhile, according to the present invention, meta information, which is data providing an extended search function and an event generation function, includes a search keyword providing an extended search function and location information of an AV data in which each search keyword exists and event generation. It includes section information.

For example, the meta information according to the present invention is based on the contents of a scenario used in the production of a movie, and includes characters, dialogs, sounds, props, and shooting locations. ) Can be used as a search keyword. Accordingly, only the video information of the desired position among the video information may be searched for and reproduced by using the search keyword by the person, the dialogue, the background music, the accessory, and the shooting location. Hereinafter, this will be referred to as an extended search function.                     

In addition, by using the meta information according to the present invention, playback starts from the position of the AV data in which the search keyword specified by the user exists, and at this time, at the start of playback and the completion of playback of the section including the search keyword, respectively. The interval reproduction start event and the interval reproduction completion event may be generated. Accordingly, a specific operation may be performed on an event generated by an engine executing the program data 111 or the browser data 112.

Meanwhile, the meta information may be included in the moving picture information 102 and recorded, or may be recorded separately from the moving picture information 102. That is, it may be included in the playlist mark existing in the playlist included in the video information, may exist separately from the playlist mark in the playlist, or exist as a file in binary or text form separate from the playlist. have. Various embodiments of the meta information included in the video information or recorded separately from the video information will be described later.

In the following description, the video information 102 and the navigation information 101 which is a set of commands for reproducing the video are referred to as the core data 100 or data for the core mode. Core mode is also called movie mode because it plays data required for watching movies, such as DVD, a typical video application. On the other hand, data for programming 111 and / or browser 112 functions that provide interaction with a user are referred to as full data or data for full mode 110. The startup information 121 and the title information 122 do not belong to any particular mode and are referred to as system data 120.

Moving picture data recorded on a storage medium storing the above-described data can be reproduced in two ways. One is a core mode for reproducing in a general movie mode using navigation data, which is the core data 100 as described above, and the other is a programming language in which the reproduced video data is included in the full data 110; Full mode that allows display through a display window defined by an application written in a markup language.

When the full mode is selected by the user's selection or navigation flow, Java programming is performed in an application produced in a program language and / or a markup language (in the present invention, the case where Java is used as a programming language is referred to as a Java application). The display window of the video data is generated by the function or the "object element" of the markup language, and the video data can be controlled and displayed through the Java API or the ECMAScript API.

At the same time, several resources (for example, images, audio, etc.) and / or markup documents written in markup languages and markup documents referenced in Java-programmed content or Java applications Can be displayed together with the playback of moving picture data.

At this time, when the video data is displayed through the display window defined by the Java application and / or markup language in the aforementioned pull mode, synchronization between the video data and the Java application and / or markup document is required. In the present invention, an event is used to synchronize the program data 111 or the browser data 112 with the video data.                     

Hereinafter, the reproduction apparatus for reproducing the aforementioned storage medium will be described in detail.

2 is a block diagram of a playback apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 2, the reproducing apparatus according to the present invention includes a reading unit 210, a buffer unit 220 to 260, a reproducing unit 221 to 261, and a user input unit 270 and 280.

First, the playback apparatus according to the present invention can be divided into three modes. That is, in the browser mode, the Java language, and the like, which outputs the markup document using the browser mode 112 including the core mode, a markup language, and related resources, for playing a video such as a movie using the core data 100. The configured program data 111 may be used to distinguish a program mode that provides an execution environment of a program.

To support these three modes, the playback units 220 to 260 include a program engine 221, a browser engine 231, and a navigation engine 241. For each engine to support three playback modes, one engine is selected by the application manager and the selection is specified by a switch. Therefore, one of the three engines 221, 231, and 241 is activated at a moment when data for core mode or full mode is being processed.

If it is a playback device for basic playback of a video such as a movie, a program engine, a browser engine, and each buffer unit 220 to 260 for a program mode and a browser mode may not be included.

Hereinafter, the configuration of the playback apparatus will be described in detail.                     

The reader 210 reads the video information 102, the navigation information 101, the program data 111, the browser data 112, and the system data 120 from the storage medium 200 and buffers them in the respective buffers. do. Each buffered data is passed to the corresponding engine. In this case, the system data 120 is transmitted to the application manager 261, and determines the first mode (core mode or full mode) and the data to be first reproduced based on the startup information 121. During playback, the mode can be played with reference to the title information 122 when switching between modes or searching for a title by the user.

The buffer units 220 to 260 temporarily store each data received from the reading unit 210 and transfer the data to each engine. The program data buffer 220, the browser data buffer 230, the navigation data buffer 240, the moving picture data buffer 250, and the system data buffer 260 may be included according to the type of data to be temporarily stored.

The playback units 221 to 261 include a program engine 221, a browser engine 231, a navigation engine 241, a presentation engine 251, and an application manager 261.

The program engine 221 provides an execution environment of program code included in the program data 111. A program executed in the program engine may control the presentation engine 251 through an API.

The browser engine 231 is responsible for outputting the markup document and may control the presentation engine 251 through an API.                     

The navigation engine 241 controls the presentation engine 251 using navigation data, which is a set of instructions for playing a video.

The presentation engine 251 decodes and reproduces the video data.

The application manager 261 includes an API for commands input from a user and a controller for processing APIs from each engine, and processes an API input from a user or an API generated from each engine, or sets an API in a corresponding mode. Functions to deliver to the engine and management functions such as driving / stopping of the program engine 221, the browser engine 231, and the navigation engine 241 are also performed.

The user input units 270 and 280 may receive APIs for commands input from the user input module 280 and the user or APIs transmitted from the respective engines, and deliver them to the application manager 261 in order to be delivered. ). The API may include event information, instruction execution information, and status information required to execute each program engine.

3 is a detailed block diagram of a playback apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 3, only the core mode (movie mode) portion except for the program mode and the browser mode will be described for the convenience of description in the detailed block diagram of the playback apparatus shown in FIG. 2.

The application manager 340 determines a mode to be reproduced for the first time with reference to the system data and drives an engine that reproduces the mode. In the case of FIG. 3, the program engine and the browser engine are omitted and described for convenience of description, and thus, the first execution mode becomes the core mode and the navigation engine 310 operates. The application manager 340 includes a controller 341 for controlling the generation of the event.

As described above with reference to FIG. 2, the navigation engine 310 processes the navigation data and controls the presentation engine 330 through an API to perform a playback function of a video such as a movie. The navigation engine 310 includes a command processor 311. The command processor 311 interprets navigation data (ie, a movie object that is a set of navigation commands) read from the navigation data buffer 300 and transmits a reproduction control command for the moving image data to the presentation engine 330.

The presentation engine 330 includes a playback control engine 331 and an enhanced search engine 332. The presentation engine 330 reads the video information to be played back according to the playback control command received from the navigation engine 310 from the video data buffer 320 and starts decoding it through the playback control engine 331.

At this time, the meta information according to the present invention extracted while the above-described playlist, which is the above-described playback unit, of the video data is interpreted is transferred to the extended search engine 332 to provide an extended search function. If the meta information exists as a separate file from the playlist, it is preferable that data is transmitted directly from the video data buffer 320 to the extended search engine 332.

On the other hand, the reproduction control engine 331 generates an event according to the present invention every time a mark or item recorded with meta information meeting the predetermined search condition is recorded. The generated event is delivered to the application manager 340 through the queue 350. The application manager 340 notifies the occurrence of the event to the engine of the specific mode that currently controls the presentation engine 330. The engine in a particular mode may include a program engine 221 or a browser engine 231 as shown in FIG. 2.

As described above, if a command for requesting playback of video data corresponding to a specific search keyword is input from the user during the playback of the storage medium, the application manager 340 through the queue 350 is input. The search command (UOP) is transmitted to the control unit 341 of. The transferred search command is transmitted to the extended search engine 332 in the presentation engine 330, and the video data corresponding to the scene corresponding to the input search keyword is searched through the extended search engine 332. The playback control engine 331 receives the search result and starts playback of the video data from the searched position.

Hereinafter, the meta information for providing the extended search and event generation functions will be described in detail.

4A to 4C illustrate implementation examples of meta information for providing an extended search and event generation function according to the present invention. Three embodiments of the meta information structure according to the present invention are shown.

Referring to FIG. 4A, a case in which meta information is included in a play list mark PlayListMark, which is a set of marks indicating a specific position of moving image data corresponding to a play list PlayList that is a reproduction unit of moving image data, is illustrated. In this case, the search keyword information is recorded in the meta_info field, and the ref_to_PlayItem_id field and mark_time_stamp field indicate the playback start position of the portion where each search keyword is recorded in the moving picture data. It also indicates the time at which an event according to the invention occurs. The duration field indicates section information from the playback start position to the playback completion position of the search keyword. An event according to the present invention may be generated even when the duration ends.

FIG. 4B illustrates an embodiment in which meta information is included in a play list, but is recorded in a MetaInformation structure separately from the play list mark unlike FIG. 4A. In this case, the search keyword information is recorded in the meta_info field, and the ref_to_PlayItem_id field and the item_time_stamp field indicate the playback start position where each search keyword is recorded in the video. It also indicates the time at which an event according to the invention occurs. The duration field indicates section information from the playback start position to the playback completion position of the search keyword. An event according to the present invention may be generated even when the duration ends.

When using meta information having a structure as shown in FIG. 4A or 4B, the presentation engine 330 generates a section play start event at a play start position of the meta information through the play control engine 331. The generated event is delivered to the application manager 340 through the queue 350. In addition, by using the information in the duration field of the meta information, the section playback completion event is generated when the video data corresponding to the search keyword of the meta information is completed. The generated event is delivered to the application manager 340 through the queue 350.

Meanwhile, in addition to the occurrence of an event as described above, the interpreted meta information may be transmitted to the extended search engine 332 and used to provide an extended search function according to various search criteria input by the user.

4C is different from the case of FIG. 4A and FIG. 4B in which the meter information is recorded in the play list, and is recorded in a separate space separate from the play list and is recorded in a text format or a binary format. In particular, the example written in the markup language of a text form is shown.

One movie is divided into a plurality of scene units, and search scene information existing in the scene is recorded in each scene. For example, scene 1 is composed of one scene starting at time x1 and up to y1, and information about actor A, background music B, and the like are recorded as search keyword information. Also, scene 2 is composed of one scene starting at time x2 and up to y2, and at least one search keyword information existing in the scene is recorded.

In this case, the playback start event may be generated using the "start_time" attribute in the meta information, and the playback completion event may be generated using the "end_time" attribute.

When the extended search function is executed by the user's input, the position corresponding to the input search keyword is searched through the extended search engine 332, and the video data of the position is played through the playback control engine 331. Accordingly, when the user inputs or selects a desired search keyword, the video data is searched using search keywords such as scene, character, item, shooting location, sound, and the like. You can search for the location and play it from the part you want.

As described above, in addition to providing an extended search function using meta information, a function of generating a play start event and / or a play completion event corresponding to a specific search keyword is also provided. The generated event may be used as synchronization information for providing an additional function such as a program function or a browser function when the video data corresponding to a mark or item corresponding to a specific search keyword is played in the full mode playback.

Hereinafter, another application example of the generated event will be described.

5A and 5B are application examples using the extended search and event generation functions according to the present invention.

Referring to FIGS. 5A and 5B, a playback apparatus according to the present invention may check a mark, an item, or a scene (see FIGS. 4A to 4C) that match a search keyword in the extended search engine 332. When a mark, item or scene to be played back is selected by the user, the playback point is moved to the corresponding position to start playback. At this time, the extended search engine 332 transmits the playback position information corresponding to the search keyword to the playback control engine 331. The playback control engine 331 plays the video data of the corresponding location using the received playback location information and simultaneously generates a section playback start event.

On the other hand, the reproduction control engine 331 uses the duration field information of the retrieved mark or item as shown in Figs. 4A or 4B, or if the meta information is stored as an external file as shown in Fig. 4C, end_time is stored. In this case, after the playback progresses for a duration from the playback time of the search keyword selected by the user, the section playback completion event is generated.

Through the occurrence of such an event, it is possible to continuously reproduce only scenes corresponding to a specific search keyword as shown in FIGS. 5A and 5B. FIG. 5A illustrates an application example when reproducing a storage medium in which meta information is included in a mark or item, and FIG. 5B illustrates an application example when reproducing a storage medium in which meta information is stored as a separate external file.

On the other hand, it is also possible to play back only the video data portion corresponding to the specific search keyword information and move to the search menu again when the reproduction end event occurs. That is, various applications are possible by using a play start event and a play finish event.

The reproduction method is summarized as follows based on the structures of the storage medium and the reproduction device described above.

6 is a flowchart illustrating a playback method for providing an extended search and event generation function according to the present invention.

Referring to FIG. 6, when a user receives a predetermined search condition or a search request from the user (step 610), the playback apparatus refers to the location of moving image data that satisfies the received search condition by referring to meta information recorded in the storage medium. Search (step 620). This is called an extended search function. At this time, at least one mark, item, or scene that matches the search condition is searched according to an embodiment of the meta information. In addition, the playback apparatus generates a playback start event at the same time as playing the video data of the searched position (step 630), and proceeds with the playback from the playback time for a duration, or generates a playback completion event when the end_time is reached (step 640). ). The above playback and event generation step (step 630 and step 640) may be repeated while the found mark, item or scene exists (step 650).

Accordingly, not only an extended search function of various criteria is provided but also an event can be generated while playing video data matching the search criteria. As described above, the generated event may be variously applied to continuously playing only scenes corresponding to a specific search keyword or used as a synchronization signal for program data or browser data.

The implementation example of the meta information for providing the above-described extended search function and the event generation function is merely an embodiment and may be modified and implemented in various forms.

The storage medium according to the present invention is preferably a removable disk which can be easily inserted into and detached from the reproduction device, and which can read data using the optical device of the reproduction device. For example, an optical disc such as a CD-ROM or a DVD may be included, and an optical disc to be developed later may be included.                     

The invention can also be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical disk, and the like, and may also include those implemented in the form of carrier waves (eg, transmission over the Internet). do. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

The above description is only one embodiment of the present invention, and those skilled in the art may implement the present invention in a modified form without departing from the essential characteristics of the present invention. Therefore, the scope of the present invention should be construed to include various embodiments which are not limited to the above-described embodiments but within the scope equivalent to those described in the claims.

As described above, according to the present invention, an extended search function using various search keywords is provided through a storage medium on which meta information for providing an extended search function and an event generation function is recorded, and a playback start event of a searched section unit and / or Alternatively, various applications can be generated by generating a play completion event.

That is, the present invention may be variously applied to continuously playing only scenes corresponding to a specific search keyword or used as an API for program data or browser data.

Claims (23)

Video data; And And meta information indicating information for retrieving a section of the video data satisfying a predetermined search condition among the video data and information for generating an event when reproducing the video data of the searched section. The method of claim 1, The meta information is, Search keyword information to be compared with the predetermined search condition received from the outside; Location information indicating a location of a section of video data corresponding to the search keyword information; And And a section information for controlling the occurrence of an event for a playback section when playing the section of the video data according to the location information. The method of claim 2, And the section information indicates time information from a start point of playback of a play section according to a search result to a time point at which playback is completed. The method of claim 1, The event comprises a playback start event and / or a playback end event. The method of claim 1, And the event is used as an application program interface (API) for an engine providing additional functions such as program or browser functions. The method of claim 2, The event is used for continuously playing the sections of the video data corresponding to the specific search keyword information. The method of claim 2, And the event is used for reproducing the section of the video data corresponding to specific search keyword information and moving to a search menu for user selection again when a play end event occurs. The method of claim 1, And the meta information is recorded in a playlist mark, which is a set of marks indicating a specific position of the moving image data, included in the playlist which is a reproduction unit of the moving image data. The method of claim 1, And the meta-information is recorded separately from a playlist mark, which is a set of marks indicating a specific position of the moving image data, included in the playlist which is a reproduction unit of the moving image data. The method of claim 1, The meta information is recorded separately from the playlist which is a reproduction unit of the moving image data. The method of claim 10, The meta information is composed of text or binary data. The method of claim 11, The meta information is composed of data in the form of markup language. And information for searching for a section of video data satisfying a predetermined search condition among the video data and the video data, and meta information indicating information for generating an event when playing the video data of the searched section. A search unit searching for a section of video data satisfying a predetermined search condition with reference to the meta information from a storage medium; And And a playback control unit for reproducing the video data of the searched section and generating an event for the section using the meta information. The method of claim 13, And the searcher and the playback controller are included in a presentation engine for encoding and playing back the video data. The method of claim 13, And an application manager which receives the information on the occurrence of the event from the playback control unit and transmits the information to the corresponding engine, and receives the user's input to the corresponding engine. The method of claim 15, The corresponding engine further comprises a program engine for providing an interactive function with a user and a browser engine for providing a browsing function using a markup document. (a) receiving a predetermined search condition; (b) including meta information indicating information for retrieving video data and a section of video data satisfying a predetermined search condition among the video data, and information for generating an event during reproduction of the searched video data of the searched section. Searching for a section of video data satisfying the search condition with reference to the meta information from a storage medium characterized by the above-mentioned; And (c) playing video data of the searched section, and generating an event for the section by using the meta information. The method of claim 17, In the step (c), when the meta information is recorded in a playlist mark which is a set of marks indicating a specific position of the moving image data included in the playlist which is a reproduction unit of the moving image data, " mark_time_stamp " Generating a playback start event by using a playback method. The method of claim 17, In step (c), when the meta information is recorded in a playlist mark, which is a set of marks indicating a specific position of the moving image data included in the playlist that is a reproduction unit of the moving image data, " duration " Generating a play completion event by using the play method. The method of claim 17, In step (c), when the meta information is recorded separately from a playlist mark, which is a set of marks indicating a specific position of the moving image data included in the playlist, which is a reproduction unit of the moving image data, the "item_time_stamp" in the playlist. Generating a playback start event using ". &Quot; The method of claim 17, In step (c), when the meta information is recorded separately from a playlist mark, which is a set of marks indicating a specific position of the moving image data included in the playlist, which is a reproduction unit of the moving image data, the " duration " Generating a playback completion event using ". &Quot; The method of claim 17, In the step (c), when the meta information is recorded separately from a playlist that is a playback unit of the video data, generating a play start event by using a "start_time" attribute in the meta information. Regeneration method. The method of claim 17, In the step (c), when the meta information is recorded separately from a playlist that is a playback unit of the video data, generating a play completion event by using an "end_time" attribute in the meta information. Regeneration method.

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