KR20070098395A - Media file format, method for playbacking media file, and apparatus for playbacking media file - Google Patents

Abstract

A media file format, and a method and device for playing a media file are provided to offer various information related to vector graphic media to a user by including the related information in the media file. A metadata searcher(314) searches metadata of a plurality of vector graphic media by receiving a keyword and displays the search result. A media file analyzer(316) analyzes media information of a vector graphic media file. A media player(318) plays vector graphic media and the metadata of the vector graphic media by using the analysis result. A media selector receives more than one option selected among a plurality of available options. The media player plays the vector graphic media and the metadata of the vector graphic media according to the selected options.

Description

MEDIA FILE FORMAT, METHOD FOR PLAYBACKING MEDIA FILE, AND APPARATUS FOR PLAYBACKING MEDIA FILE}

1 is a schematic diagram of a media file format according to an embodiment of the present invention;

2 is a schematic diagram of a media file format according to another embodiment of the present invention.

3 is a block diagram of a media file playing apparatus according to an embodiment of the present invention.

4 is a block diagram of a media file playing apparatus according to another embodiment of the present invention;

5 is a flowchart of a metadata retrieval process of a media file playing method according to an embodiment of the present invention.

6 is a flowchart illustrating a process of playing a media file in a method of playing a media file according to an embodiment of the present invention.

7 is a flowchart illustrating a process of playing a media file in a method of playing a media file according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110 210 File Information Area

212 File Metadata Area

120 220 Media Information Area

122 222 Track area of vector graphics media

224 Synthetic Metadata

130 230 Media data area

132 232 Vector graphics media

234 Media Resources

The present invention relates to a media file format, a media file playback method, and a media file playback device, and more particularly, to a media file format such as audio media, video media, text media, multimedia, rich media, or the like. A media file format for playing back a media file, a media file playback method, and a media file playback device.

In recent years, vector graphics such as flashes for expressing animated characters have been produced, distributed and consumed for various purposes in various fields. Vector graphics are not only able to dynamically represent each object, but also provide filtering effects, even though the data capacity is significantly smaller than raster graphics such as bitmaps, JPEGs, and GIFs. It is also very efficient to do.

However, since the existing vector graphics do not include related information such as vector graphic creator information, vector graphic character information, and color information, only the graphic name, extension, and file size of the vector graphic can be identified. Thus, if there are numerous vector graphics files, it was impossible to find the desired vector graphics by searching the relevant information.

On the other hand, in recent years, even the general user has been increasing the attempt to transform to the original content by modifying the existing vector graphics produced. For example, instead of inserting a character's face in a vector graphic, he wants to insert his face or replace the music in a vector graphic with his favorite music.

However, combining separate media resources with existing vector graphics is not supported in the existing vector graphics format. That is, in order to modify the vector graphic as described above, the general user must directly find the source of the vector graphic, interpret the division, and then find and modify and change the desired part of the syntax. For this reason, it was virtually impossible for ordinary users who are new to the language of vector graphics to make their own media by applying vector graphics.

The present invention has been made to solve the above problems, by including the relevant information about the vector graphics media in the media file, media file format, media files that can provide a variety of information related to the vector graphics media to the general user It is an object of the present invention to provide a playback method and a media file playback device.

Still another object of the present invention is a media file format, a method of playing a media file, and a media file that can combine or synthesize a media resource of their choice into a vector graphic media by only a user registering a separate media resource. A reproduction device is provided.

In order to achieve the above object, a media file playing method according to the present invention comprises the steps of analyzing media information of a vector graphics media; And reproducing the vector graphics media and metadata of the vector graphics media using the analyzed result.

According to the present invention, the method for playing a media file further includes displaying a menu including a plurality of options, and the playing may correspond to a selected one of the options.

According to another aspect of the present invention, a method for playing a media file including vector graphics media and metadata of the vector graphics media, wherein the metadata of the vector graphics media included in the plurality of media files is searched using a given search word. Inquiring and displaying the inquiry result; And playing the vector graphics media of the selected media file.

According to still another aspect of the present invention, there is provided a method of playing a media file including composite metadata, the method comprising: querying the composite metadata included in a plurality of media files using a given search term and displaying the query result. ; And playing the selected media file.

According to another aspect of the invention, the media information analysis unit for analyzing media information of the vector graphics media; And a media player for reproducing the vector graphics media and the metadata of the vector graphics media using the analyzed results.

According to the present invention, the media file reproducing apparatus further includes a media selection unit for receiving one or more of a plurality of options, wherein the media player is configured to select the vector graphics media and the vector graphics media according to the selected options. You can play back metadata.

According to another aspect of the invention, the metadata search unit for inquiring the metadata of the plurality of vector graphics media through the input search word, and displays the query result; A media information analyzer for analyzing media information of the vector graphics media of the selected media file; And a media player configured to play the vector graphic media using the analyzed result.

According to another aspect of the invention, the media data area having a vector graphics media; And a media information area including metadata of the vector graphics media.

According to the present invention, the vector graphics media may include one or more instructions and one or more objects.

According to the present invention, the command is to dynamically process vector graphics, and the object may correspond to one of a still image format, a video format, an audio format, and a text format.

According to the present invention, the vector graphics media is divided into access units, and the media information of the vector graphics media may include time information for each access unit.

According to the present invention, the time information for each access unit may include one or more of period information and order information.

According to the present invention, the metadata of the vector graphics media may include one or more of color, texture, shape, and motion information of the vector graphics media.

According to the present invention, the metadata of the vector graphics media may be according to a descriptor format of the multimedia description structure of the vector graphics media.

According to the present invention, the media file format may further include a file metadata area having a digital item information and a digital item declaration area.

According to the present invention, the digital item information may include location information of one or more digital items, and the digital item may include one or more of metadata of the vector graphic media, media resources, and the media resources.

According to the present invention, the media resource and the metadata of the media resource may be included in the media data area or exist in a separate media file.

According to the present invention, the media resource may be one of an audio format, a video format, a music file format, and a multimedia application format.

According to the present invention, the digital item declaration area may include an optional component related to the digital item.

According to the present invention, the media information area may further include synthesis metadata for the synthesized scene, and the synthesized scene may be a combination of the vector graphic media and the media resource.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a schematic diagram of a media file format according to an embodiment of the present invention. Referring to the drawings, the media file format 100 (hereinafter, referred to as the media file format 100) according to an embodiment of the present invention may include a file information area 110, a media information area 120, and a media data area 130. It includes. The vector graphic media 132 exists in the media data area 130, and the track area 122 of the vector graphic media exists in the media information area 120. Hereinafter, the file information area 110, the vector graphic media 132, and the track area 122 of the vector graphic media will be described.

The file information area 110 is an area in which identification information is stored so that a media file according to the media file format 100 is distinguished from a plurality of other media files. The identification information may include a format name, a version, a total data size of the media file, but the present invention is not limited thereto.

The vector graphics media 132 is actual data constituting the vector graphics. Vector graphics media may include one or more instructions and one or more objects. The instructions here are for generating or dynamically processing vector graphics. The object is the target of the command, which corresponds to one of a still image format, a video format, an audio format, and a text format.

The vector graphics media 132 may be separated into a plurality of access units. Referring to the drawings, it can be seen that the vector graphics media 132 is composed of a total of N access units from the first access unit (1) to the Nth access unit (N). Here, the access unit is a unit used for describing the vector graphics media 132 in the vector graphics media 132 (particularly, the media information area 120 of the vector graphics media).

On the other hand, the vector graphics media is Scalable Vector Graphics (SVG), a language based on XML (eXtensible Mark-up Language) (hereinafter referred to as SVG), or a laser (LASeR: Light-weigh Application defined in MPEG4 PART 20). Scene Representation (hereinafter referred to as LASeR), but the present invention is not limited thereto. Vector graphics media may be in text form as such, such as SVG or LASeR language, but may also be binarized.

The track area 122 of the vector graphics media includes media information 122d of the vector graphics media and metadata 122t of the vector graphics media. The media information 122d of the vector graphics media includes the vector graphics media 132. Media information about. The media information herein may include location information and time information for each access unit, and the time information may include order information and period information. The location information is information indicating where each access unit of the vector graphics media 132 exists and may be a physical address. The order information in the time information is information for determining an order of a plurality of access units, and refers to which access unit is applied first, and the period information in the time information indicates information for which time a particular access unit is to be maintained. The decoder of the media file may locate the respective access units of the vector graphics media 132 by referring to the media information 122d of the vector graphics media, and then play the corresponding access units for a given time in a given order.

On the other hand, metadata 122t of the vector graphics media is metadata about the vector graphics media 132. All information that may be associated with the vector graphics media 132 may be the metadata 122t of the vector graphics media. The metadata 122t of the vector graphics media may describe visual information of the vector graphics media such as color, texture, shape, and motion information of the vector graphics media. MPEG-4 PART: Descriptor of Multimedia Description Schemes (MDS), which may be in accordance with the Visual Description structure defined in 4) and defined in MPEG-7 Part 5 (MPEG-7 PART: 5). ) May be in accordance with the regulations, but the present invention is not limited thereto.

The media file format 100 according to an embodiment of the present invention may apply metadata to vector graphic media by including the above-described information area or information as the above structure.

2 is a schematic diagram of a media file format according to another embodiment of the present invention. The media file format 200 (hereinafter, referred to as the media file format 200) according to another embodiment of the present invention may further include a file metadata area 212 and a media in addition to the media file format 100 according to an embodiment of the present invention. The metadata includes the composite metadata 224 and the media resource 234 of the information area 220.

Referring to FIG. 2, the media file format 200 includes the file information area 210, the media information area 220, and the media data area 230 similarly to the media file format 100 according to an embodiment of the present invention. Include.

On the other hand, the file information area 210, the track area 222 of the vector graphics media (including the media information 222d of the vector graphics media and the metadata 222t of the vector graphics media), and the vector graphics media 232 are provided. Since the media file format 100 according to an exemplary embodiment has the same name as each of the areas of the same area, a description thereof will be omitted. However, each access unit of the vector graphic media 232 may include identification information of the media resource 234 (eg, digital item ID (“Item_ID = 1”)), in this case, the file metadata area 212. The media resource 234 may be referred to through the location information of the digital item included in the digital item information 212i. The detailed description thereof will be described later together with the digital item information 212i. In addition, the media resource 234, the file metadata area 212, and the composite metadata 224, which are areas not included in the media file format 100, according to an embodiment of the present invention, will be described in the order listed. do.

The media resource 234 is media that can be reproduced in one scene by being synthesized with vector graphic data and may correspond to one of an audio format, a video format, a music file format, and a multimedia application format. The general user can register the media resource 234 in association with the vector graphic media 232, where the media resource 234 is produced by recording or recording by the general user, or selecting a favorite photo or music. It may be. The media resources 234 may be one as shown in the drawing, but may be two or more. The media resource 234 may be included in the media file format 200 as shown in the figure, but may also exist as a separate file outside the media file format 200. Since the media resource 234 is treated as a digital item in the file metadata area 212, the positional information regarding where the media resource 234 is specifically located is directly related to the digital content of the file metadata area 212. It is stored in the item information 212i. A detailed description thereof will be provided later along with the file metadata area 212.

Meanwhile, the media resource 234 may include metadata 236 of the media resource in some cases. For example, the media resource 234 may be a file of an MPEG-3 layer3 file generated by a general user. In this case, the metadata 236 of the media resource may be a musician, an album name, a duration, and the like. Since the metadata 236 of the media resource is treated as one digital item in the file metadata area 212 similarly to the media resource 234, the location information or the like regarding the metadata 236 of the media resource is determined by the file metadata. It is included in the digital item information 212i of the data area 212. The detailed description thereof will also be described later along with the digital item information 212i of the file metadata area 212.

The file metadata area 212 includes digital item information 212i and a digital item declaration area 212x. The digital item information 212i of the file metadata area 212 includes position information and format information of the digital item. Information, and the like. The digital item may be a vector graphic media 232, a media resource 234, and metadata 236 of the media resource. Referring to the drawing, the vector graphic media 232 is the first digital item (Item_ID = 1), the media resource 234 is the second digital item (Item_ID = 2), and the metadata 236 of the media resource is generated. 3 It is treated as a digital item (Item_ID = 3). For example, when the second digital item (Item_ID = 2) is described in the first access unit 1 in the vector graphic media 232, the second digital item included in the digital item information 212i may be used. The location information of Item_ID = 2 may be used to refer to the media resource 234 existing in the media data area 230. For example, when the third digital item (Item_ID = 3) is described in the second access unit 2 in the vector graphics media 232, the third digital item included in the digital item information 212i may be used. The location information of Item_ID = 3 may be used to refer to the metadata 236 of the media resource existing in the media data area 230.

On the other hand, the digital item declaration area 212x of the file metadata area 212 is an area for declaring and describing digital items (vector graphic media 232, media resources 234, metadata 236 of the media resources, etc.). As an example, the digital item declaration area 212x may include an optional component, which may be in accordance with the structure of MPEG-21 Digital Item Declaration (DID). For example, if two digital items each have the same content but differ only in format (e.g., "Sumido.asf" and "Sumido.mp4"), the selected digitalitem may be referenced, subject to a particular format being selected by the user. will be.

Synthesis metadata 224 is metadata for the synthesized scene. Synthesis metadata 224 may include one or more of a synthesis method, a synthesis date, and synthesizer information. For example, when a general user registers and synthesizes a face picture of a user instead of a character face in a character animation, the synthesis metadata is input by the general user, 'face change', 'composited on July 7, 2006', Synthesis could be Hong Gil-dong. Meanwhile, similar to the metadata 222t of the vector graphic media, the composite metadata 224 may also follow the visual description structure defined in MPEG-7 Part 4 (MPEG-7 PART: 4). In addition, the present invention may conform to the descriptor of the Multimedia Description Schemes (MDS) defined in MPEG-7 Part 5 (MPEG-7 PART: 5), but the present invention is not limited thereto.

The media file format 200 according to another embodiment of the present invention may include a plurality of media resources and data of the media resources by including the information areas having the above structure.

3 is a block diagram of a media file playing apparatus according to an embodiment of the present invention. Referring to FIG. 3, a media file playing apparatus 310 (hereinafter, referred to as a media file playing apparatus 310) according to an embodiment of the present invention is associated with a media file storage unit 400 and an interface unit 312. , A metadata retrieval unit 314, a media information analyzer 316, and a media player 318.

The media file storage unit 400 is a storage in which one or more media files are stored, and the format of the media file here includes the metadata 122t of the vector graphic media as the media file format 100 of FIG. 1. Can be. Meanwhile, the plurality of media files stored in the media file storage unit 400 may be configured as a database or a database management system, but the present invention is not limited thereto.

The interface unit 312 receives input signals IN_1 and IN_2 from the outside of the media file reproducing apparatus 310, and outputs an example of an output signal (eg, from the metadata retrieval unit 314 (or the media information analyzer 316)). : Search box, search result, etc.)

The metadata search unit 314 inquires the metadata of the plurality of vector graphics media or the plurality of composite metadata through the input search word, and outputs the result. In detail, when a search request input signal IN_1 including a search word is received, the metadata search unit 314 accesses a plurality of media files stored in the media file storage unit 400. Then, the metadata of the vector graphic media included in the media file is queried, and if it is found that the same or similar to the entered search word among these metadata, the metadata (and the name of the media file having the metadata) is queried. Output as a result. For example, if the search term is "[vector graphic media shape =] Mashimaro & [synthesis date =] July 2007 ', the metadata search unit 314 accesses the media file storage unit 400, the vector graphic It is to inquire whether there are media files with 'Mashimaro' in the metadata of the media and 'July 2007' in the composite date among the composite metadata.

When the media information analysis unit 316 receives a play request (IN_2) for a specific media file, the media information analysis unit 316 reads out the media file from the media file storage unit 400, parses each information area included in the media file, and The media information of the vector media stored in the information area is analyzed. The media information analyzer 316 analyzes the information regions in this way, so as to determine the position and time (order, period) of the vector graphics media.

The media reproducing unit 318 outputs a scene of reproducing the vector graphic media through the analysis result by the media information analyzing unit 316 (OUT_A).

4 is a block diagram of a media file playing apparatus according to another embodiment of the present invention. The media file reproducing apparatus 320 (hereinafter, referred to as the media file reproducing apparatus 320) according to another embodiment of the present invention is associated with the media file storing unit 400, the interface unit 322, and the metadata retrieving unit ( 324, a media information analyzer 326, a media selector 328, and a media player 328.

The media file storage unit 400 is a storage in which one or more media files are stored. The media file format is a media file format 200 of FIG. 2, and is combined with metadata 222t of vector graphic media. May include metadata 224.

The interface unit 322 receives input signals IN_1, IN_2, and IN_3 from the outside of the media file reproducing apparatus 320, and receives the metadata retrieval unit 324, the media information analyzer 326, or the media selector ( An output signal (eg, a search window, a search result, a selection menu, etc.) of the 327 is output to the outside.

The metadata retrieval unit 324 has a function similar to that of the metadata retrieval unit 314 of the media file reproducing apparatus 310 according to an embodiment of the present invention. The difference is that it can be synthetic metadata.

The media information analyzer 326 has a function similar to that of the metadata analyzer 316 of the media file reproducing apparatus 310 according to an exemplary embodiment of the present invention, but the digital item information and the digital item declaration of the file metadata are similar. The difference is that it analyzes the area and identifies the type and location of media resources referenced by vector graphics media. In this case, as a result of analyzing the digital item declaration region, when an optional component is included, the media selector 327 transmits a signal regarding a plurality of options.

The media selector 327 receives an input signal IN_3 for selecting one or more of the plurality of options. For example, if two digital items each have the same content but different formats (for example, "mimido.asf" and "mimido.mp4"), the user is selected by the user.

The media player 328 outputs the synthesized scene OUT_B by not only the vector graphics media but also the media resources referenced by the vector graphics media through the analysis result by the media information analyzer 326. In this case, metadata of the vector graphic media and composite metadata may be output together.

5 is a flowchart of a metadata retrieval process of a media file playing method according to an embodiment of the present invention. The metadata retrieval process herein is a retrieval process of metadata and / or composite metadata of vector graphics media, and a process for finding a media file to be played before a specific media file is played. The process of playing the file will be described later with reference to FIGS. 6 and 7.

Referring to FIG. 5, the apparatus for reproducing a media file receives a search word and a search request (S410). Then, the media file reproducing apparatus accesses a plurality of media files stored in the media file storage unit by using the search word input in step S410, and metadata and / or composite metadata of the vector graphic media included in the media file. Search (step S420). Then, the media file reproducing apparatus outputs the result queried in step S420 (step S430). If the inquiry result in step S420, if there is no inquiry media file, a message indicating that there is no inquiry result is output, and if there is an inquiry result, the name of the inquiry media file and the meta data of the vector graphic media. Data and / or synthetic metadata may be output.

6 is a flowchart illustrating a process of playing a media file in a method of playing a media file according to an embodiment of the present invention. Such a media file playback process may be a process performed after the metadata search process described above with reference to FIG. 5, or may not be a process involving the metadata search process.

Referring to FIG. 6, first, a media file reproducing apparatus receives a reception command for a specific media file (step S510). Then, the media file reproducing apparatus parses the respective information areas included in the media file (S520). Then, the media information of the vector graphics media is analyzed (S530). After determining the position and time of the vector graphics media through step S530, if the vector graphics media is encoded, the media file reproducing apparatus decodes the vector graphics media (step S540). The media file reproducing apparatus then plays back the vector graphics media (and metadata of the vector graphics media) (step S550).

The present invention can reproduce the metadata of the vector graphics media and vector graphics media through the above steps.

7 is a flowchart illustrating a process of playing a media file in a method of playing a media file according to another embodiment of the present invention. Referring to FIG. 7, first, a media file reproducing apparatus receives a playback command for a specific media file (step S610). Then, the media file reproducing apparatus parses each information area included in the media file (step S620). At this time, even the file metadata area included in the media file is parsed. Then, the media information of the vector graphics media is analyzed (S630). At this time, the digital item information and digital item declaration area are analyzed. If the optional item is included in the digital item declaration area, a menu including a plurality of options is displayed (step S632). Then, when a specific selection is selected by the user, the selection command is received (step S634).

Then, it plays the vector graphic media and the media resource corresponding to the selection selected in step S634. Specifically, after determining the position and time of the vector graphics media through the step S630, if the vector graphics media is encoded, the media file reproduction apparatus decodes the vector graphics media (step S640). It also identifies the location of media resources referenced by vector graphics. Then, the media file reproducing apparatus reproduces the screen (and metadata of the vector graphics media) in which the vector graphics media and the media resource are synthesized (step S650).

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

According to an aspect of the present invention, since the metadata of the vector graphics media included in the media file and the composite metadata are provided, the general user may be provided with abundant information related to the vector graphics media by executing the media file.

According to another aspect of the present invention, since the metadata of the vector graphic media included in the media file and the synthetic metadata are also provided in the content search, the general user can easily find the desired media file using the keyword search.

According to another aspect of the present invention, since the general user can combine or synthesize the desired media resources into the vector graphics media by simply registering a separate media resource, the user can easily create his own content. Can be.

According to another aspect of the present invention, when registering a music file selected by a user in an animation, a music player such as an animated music box may be implemented.

According to another aspect of the present invention, when registering a music file selected by the user in the animation, the digital photo album can be implemented by applying the photos to the animated picture frame.

Claims (20)

Analyzing media information of the vector graphics media; And Playing the vector graphic media and metadata of the vector graphic media using the analyzed result. The method of claim 1, wherein the method of playing a media file further comprises displaying a menu comprising a plurality of options, And the playback corresponds to a selected one of the options. A method of playing a media file including vector graphics media and metadata of the vector graphics media, Querying metadata of the vector graphic media included in the plurality of media files using a given search word and displaying the query result; And Playing the vector graphics media of the selected media file. A method of playing a media file containing composite metadata, Querying the composite metadata included in the plurality of media files using a given search word and displaying the search result; And The method further comprising the step of playing the selected media file. A media information analyzer for analyzing media information of the vector graphics media; And And a media player configured to play the vector graphic media and metadata of the vector graphic media using the analyzed result. The apparatus of claim 5, wherein the media file playing apparatus further comprises a media selection unit configured to receive one or more of a plurality of options, And the media player plays back the vector graphics media and metadata of the vector graphics media according to the selected option. A metadata retrieval unit for retrieving metadata of the plurality of vector graphic media through the input search word and displaying the retrieval result; A media information analyzer for analyzing media information of the vector graphics media of the selected media file; And And a media player for playing the vector graphic media by using the analyzed result. A media data area having vector graphics media; And And a media information area having metadata of said vector graphics media. The method of claim 8, And the vector graphics media comprises one or more instructions and one or more objects. The method of claim 8, The instruction is to process vector graphics dynamically, And the object corresponds to one of a still image format, a video format, an audio format, and a text format. The method of claim 8, The vector graphics media is divided into access units, The media information of the vector graphics media is a media file format comprising time information for each access unit. The method of claim 11, The time information for each access unit includes one or more of period information and order information. The method of claim 12, And the metadata of the vector graphics media includes one or more of color, texture, shape, and motion information of the vector graphics media. The method of claim 12, The metadata of the vector graphics media according to the descriptor format of the multimedia description structure of the vector graphics media. The method of claim 8, wherein the media file format, And a file metadata area having digital item information and a digital item declaration area. The method of claim 15, The digital item information includes location information of one or more digital items, And the digital item includes one or more of the vector graphic media, media resources, and metadata of the media resources. The method of claim 16, And the media resource and metadata of the media resource are included in the media data area or exist in a separate media file. The method of claim 16, The media resource is one of an audio format, a video format, a music file format, and a multimedia application format. The method of claim 16, And the digital item declaration area includes an optional component relating to the digital item. The method of claim 16, The media information area further includes synthesis metadata for the synthesized scene, wherein the synthesized scene is a combination of the vector graphic media and the media resource.

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