KR100953517B1 - Method for managing and playing realtime data streaming related interactive optical disc - Google Patents

Abstract

The present invention relates to a real-time data streaming management and playback method of an interactive optical disc, and receives and references a file of a predetermined format such as an XML file provided from a content providing server connected and connected through a network. Real-time data streams of subtitles, subpictures, and moving picture data associated with main A / V data read out and reproduced from an interactive optical disc are received from the content providing server, and synchronized with the main A / V data for playback display. Thus, text, subtitles, still images, and moving images of various contents related to the main A / V data of the interactive optical disc can be received and displayed in real time, so that various types of information desired by a user or a content provider can be more efficiently. It is a very useful invention that can be provided and viewed.

Interactive optical discs, content delivery servers, real-time data streams, attribute information, subtitles, subpictures, video and video, and XLM files

Description

{Method for managing and playing realtime data streaming related interactive optical disc}             

1 illustrates a configuration of an interactive optical disk apparatus to which the present invention is applied.

2 illustrates an embodiment in which main A / V data and a real-time data stream of an interactive optical disc are cooperatively reproduced by the present invention.

3 and 4 illustrate an embodiment of an XML file to which the present invention is applied.

5 illustrates an embodiment in which a subtitle, subpicture, and moving picture are reproduced and displayed according to the present invention;

6 illustrates real-time data streaming attribute information in a table form according to the present invention.

?? Explanation of symbols for main parts of the drawings

10: network manager 11: ENAV buffer                 

12 ENAV parser and document processing unit 13 element decoder

14: ENAV interface handler 15: AV renderer

100: ENAV engine 200: DVD-Video playback engine

300: CP server 400: optical disk

The present invention relates to a real-time data stream management and reproduction method of an interactive optical disc for receiving and controlling a real-time data stream of various contents related to main A / V data read out and reproduced from the interactive optical disc.

In general, a high density optical disc capable of recording and storing a large amount of digital data, such as a DVD, is widely used. The DVD has a large capacity capable of recording and storing not only digital audio data but also high definition video data for a long time. It is commercially available as a recording medium.

The DVD may include a navigation data recording area in which navigation data necessary for controlling playback of the moving picture data is recorded and a data stream recording area in which a digital data stream such as the moving picture data is recorded and stored. .

Therefore, in the general DVD player, when the DVD is inserted and seated in the device, the navigation data recorded in the navigation data recording area is read out, stored in a memory in the device, and then the data stream is used using the navigation data. A DVD reproducing operation of reading out and reproducing moving picture data recorded in the recording area is performed.                         

Accordingly, the user having the DVD player can not only play and watch the high quality video data recorded on the DVD for a long time, but also can use various functions provided by the DVD.

Meanwhile, recently, various additional information related to A / V data read and reproduced from the DVD is displayed in a Mark-Up Language (XHTML) or SMIL, Cascading Style Sheet (CSS). Document type and image (Image; 'JPEG' or 'PNG'), Audio ('AC-3', 'MPEG audio', ''), Scripting Language ('ECMAScript') DTS ',' SDDS '), Animation (' MNG ') Text / Font, etc.A variety of data types such as additional content recorded on the DVD, and interactively read-out through the user interface A detailed plan for IDVD is being discussed among related companies. When such an interactive optical disc is commercialized, various types of content information related to the main A / V data can be easily searched by a user. Expected to be All.

In addition, while reproducing the main A / V data recorded on the existing DVD (DVD), the other various types of the above-listed content is provided from the content providing server connected through the Internet, so that the output can be reproduced In order to achieve this, various contents related to the main A / V data, such as subtitles, subpictures, and real-time data streams of moving picture video, are synchronized with the main A / V data in real time. Since there is no effective solution for regeneration, there is an urgent need for a solution.

The present invention was created in view of the above situation, and provides a real-time data stream of various contents such as subtitles, subpictures, and moving images related to main A / V data of an interactive optical disc from a content providing server. It is an object of the present invention to provide a real-time data streaming management and playback method of an interactive optical disc, which can be provided and synchronized with the main A / V data.

The real-time data streaming management method of the interactive optical disc according to the present invention for achieving the above object, the attribute information for controlling the reproduction of the real-time data stream associated with the main A / V data of the interactive optical disc, a predetermined format It is characterized by consisting of the file,

In addition, the real-time data streaming reproduction method of the interactive optical disc according to the present invention, the attribute information for controlling the reproduction of the real-time data stream associated with the main A / V data read out and reproduced from the interactive optical disc is received over the network; Reading and separating from a file of a predetermined format; And receiving the real-time data stream associated with the main A / V data through a network and playing and displaying the same along with the main A / V data according to the attribute information.

Hereinafter, a preferred embodiment of a real-time data streaming management and playback method of an interactive optical disc according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a configuration of an interactive optical disc apparatus to which the present invention is applied. The interactive optical disc apparatus, for example, an interactive DVD player, includes a network manager 10, an ENAV buffer 11, and an ENAV parser. And an ENAV engine 100 including a document processing unit 12, an element decoder 13, an ENAV interface handler 14, and an A / V renderer 15, and a DVD-Video playback engine operating in conjunction with the ENAV engine. 200 is configured to include.

Meanwhile, the network manager 10 downloads various ENAV contents provided from the content providing server 300 connected and connected through a network such as the Internet. In the ENAV buffer 11, the network manager 10 downloads the various ENAV contents. The ENAV contents downloaded from the optical disc 400 such as the ENAV contents or the interactive DVD downloaded through the PC are preloaded, and the ENAV parser and document processing unit 12 receives the ENAV document and correspondingly. Perform the data processing operation.

In addition, the element decoder 13 decodes ENAV data of content such as audio, images, fonts, animations, and the like, and real-time data streams such as subtitles, subpictures, and video videos. The ENAV interface handler 14 ) Performs an operation corresponding to the control of the ENAV buffer 11, the ENAV parser, and the document processing unit 12, and receives and transmits user trigger, DVD trigger, DVD status, and DVD control signals. The / V renderer 15 performs a series of operations to output audio and video.

On the other hand, the content providing server 300 is connected to the network manager 10 of the ENAV engine, a variety of real-time data stream associated with the A / V data stored in the interactive DVD (400) ), For example, subtitles such as text or subtitles, and subpictures, such as still images or clickable objects, and also provide video and video, as shown in FIG. The main A / V data read and reproduced from the interactive DVD may be associated with one or more ENAV applications (ENAV Application # 1, # 2, # 3 ..).

In addition, the ENAV application may be associated with a file of a predetermined format, for example, 'XML Document' files provided from a content providing server. The 'XML Document' file may include a real-time data stream of various contents. Attribute information (attribute_info) for reception and reproduction control is included and recorded, and may be associated with a real-time data stream of content related to main A / V data read and reproduced from the interactive optical disc 400.

In addition, a root element and a plurality of elements recorded in the 'XHTML' format are recorded in the 'XML Document' file. For example, as shown in FIG. 3, the root element <realtimestremingset> and a plurality of elements are recorded. The element <realtimestreaming> is recorded, and the <realtimestremingset> includes font fontface = "Arial", color color = "FFFFFF", and duration duration = "as global Global Attribute information for the real-time data stream. 300 "can be recorded.

In addition, each <realtimestreming> includes time attribute = "00: 03: 25: 2", duration duration = "600", and color color = "FF0000 as Local Attribute information for controlling playback of the corresponding element. "Can be recorded, text such as" Hellow ", image source information such as <img src =" file: // cp server / location / video.mpg>, and <a href = "www.studio.com Clickable objects such as "> Visit our website! </a> can be recorded.

Meanwhile, the time and duration are information for specifying a presentation time and duration of subtitles, subpictures, and moving images of the corresponding element, and are the main A / V of the interactive optical disc. Synchronized with Presentation Time Stamp (PTS) information of data, the image source (img src) information is information for receiving a real time video video (eg video.mpg) from a content providing server in real time. The clickable object is displayed and reproduced in the form of an image, and hyperlink information is recorded and linked so that a user can link to a specific website when the user selects and clicks the object image.

As the image source information, for example, as shown in FIG. 4, <img src = "file: // drive / location / image.jpg> may be recorded. In this case, the image source information may be recorded. Reads a JPEG image from the interactive optical disc and displays it for reproduction.

Accordingly, real-time data streams of subtitles, subpictures, and moving picture video provided from the content providing server are screen-synchronized with the main video video read and reproduced from the interactive optical disc as shown in FIG. However, the real-time data streaming attribute information for the reproduction control as described above in detail as follows.

FIG. 6 is a table illustrating real-time data streaming attribute information according to the present invention. In the attribute information for controlling reproduction of a subtitle, a type, a font, and a color are shown. , Time, duration, size, position information, etc. may be included. For example, the type information indicates whether the type of the subtitle is text data. Or information indicating whether image data is present.

And. The time information is information for specifying a presentation start time of a subtitle, and the duration information is information for presenting a subtitle for a predetermined time, and the size information and position information are reproduced. Information for specifying the screen size and position of the displayed subtitle.

On the other hand, the attribute information for controlling the reproduction of the subpicture may include type, time, duration, size, position information, and the like. For example, the type information is information for indicating whether a type of a subpicture is a JPEG image, a bit map (BMP) image, and a clickable object image.

And. The time information is information for specifying a presentation start time of a sub picture, and the duration information is information for presenting a sub picture for a predetermined time, and the size information and position information are reproduced. Information for specifying the screen size and position of the displayed subpicture.

In addition, the attribute information for controlling the playback of the video video may include type, time, duration, size, position information, and the like. For example, the type information is information for indicating whether the type of moving picture video is a video in MPEG2 format, a video in MPEG4 format, or the like.

And. The time information is information for designating a presentation start time of a moving picture, the duration information is information for presenting a moving picture for a predetermined time, and the size information and position information are reproduced. Information to designate screen size and position of displayed video.

As mentioned above, preferred embodiments of the present invention are disclosed for purposes of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

The real-time data streaming management and playback method of the interactive optical disc according to the present invention as described above, receives and references a file of a predetermined format such as an XML file provided from a content providing server connected and connected through a network. Real-time data streams of subtitles, subpictures, and moving picture data associated with main A / V data read out from an interactive optical disc are received from the content providing server and synchronized with the main A / V data. By displaying and reproducing, the text, subtitles, still images, and moving images of various contents related to the main A / V data of the interactive optical disc are received and reproduced in real time, so that various information desired by a user or a content provider can be displayed. Very useful inventors who can provide and watch efficiently will be.

Claims (39)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete In a method of playing a recording medium, Acquiring additional data associated with main data contained on the recording medium; Synchronizing and outputting the main data and the additional data; The additional data includes time information, and outputs when the time information matches the presentation time stamp of the main data, And the additional data comprises a data part to be presented and a document part including control information about the data part. The method of claim 19, The acquiring step may include acquiring the additional data from an external server through a communication network. delete The method of claim 19, And the data part is a real-time data stream. 23. The method of claim 22, And the real time data stream is a subtitle stream, a subpicture stream, or a video stream. The method of claim 19, The document part is a reproduction method, characterized in that written in the XML (XML). The method of claim 19, And the control information includes the time information, presentation attribute information of the corresponding data part, and position information indicating a position from which the corresponding data part can be obtained. 26. The method of claim 25, And the control information further includes screen display duration information of the corresponding data part and screen position information to be presented. The method of claim 19, The main data is a playback method, characterized in that the PES packet defined in the amppack standard. The method of claim 19, And the additional data is composed of one or more ENAV applications. The method of claim 19, Interpreting the obtained additional data and storing the interpreted information in a separate storage means other than the recording medium; And a separate data file not included in the additional data is read from the recording medium or received from the outside and stored in the storage means. The method of claim 29, And recording the information on the storage location and size of the data stored in the storage means in addition to the interpreted information. An apparatus for reproducing a recording medium, Reading means for reading data recorded on the recording medium; Communication means for communicating by connecting to an external communication network; A main decoder for decoding main data read from the reading means; A controller for storing additional data read out from the reading means or additional data received through the communication means in a storage means, and controlling a presentation time of the additional data; And And a sub decoder to interpret and decode the additional data, The additional data includes time information associated with a reproduction time of the main data, The controller determines a data block of the main data to be co-presented with the additional data based on the time information, and at the time when the block is applied to the main decoder, the additional data or a portion thereof is added to the sub decoder. To approve, And the additional data comprises a data part to be presented and a document part including control information about the data part. delete The method of claim 31, wherein And the data part is a real-time data stream. The method of claim 31, wherein And the control information includes the time information, presentation attribute information of the corresponding data part, and position information indicating a position from which the corresponding data part can be obtained. The method of claim 31, wherein And the data block is a PES packet defined in the amppack standard. The method of claim 31, wherein And the additional data comprises one or more ENAV applications. The method of claim 31, wherein The controller interprets the stored additional data and stores the interpreted information in the storage means or separate storage means, And a separate data file not included in the additional data is read from the recording medium or received and stored through the communication means. The method of claim 37, And the controller records information on the storage location of the data file and its size in addition to the interpreted information. The method of claim 37, It further comprises a storage means for storing the obtained additional data, And the controller controls the communication means to obtain the additional data.

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