KR100755713B1 - Apparatus and method for providing a visualization image - Google Patents

Abstract

A device and a method for providing a visualized image are provided to enable a user to conveniently form the visualized image according to audio data without depending on a platform. An inserter(310) inserts a visualization format into a visualized tag. A controller(320) determines whether the visualization format is included in the visualized tag. A parser(330) forms the visualized image by parsing visualized operation information included in the visualization format. An input value of the visualization format is matched to frequency or waveform data of the audio data, and the visualized tag is the ID3 tag. The visualization format is formed through XML(eXtensible Markup Language)-based SVG(Scalable Vector Graphics).

Description

Apparatus and method for providing visualization image}

1 illustrates a change in conventional ID3 tag form.

2 shows a source of a conventional visualization image and published header file.

3 is a block diagram of a visualization image providing apparatus according to an exemplary embodiment.

4 is a flowchart of a method of providing a visualization image, according to an exemplary embodiment.

5 shows a visualization format inserted in an ID3 tag according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

310: insertion unit 320: control unit

330: parser 340: output unit

The present invention relates to an apparatus and method for providing a visualization image, and more particularly, to an apparatus and method for providing a visualization image according to audio data by inserting visualization operation information into an ID3 tag.

In general, the digital sound source includes additional information about the audio data, that is, multimedia contents or metadata together with the audio data. For example, an MP3 (MPEG Audio Layer-3) file provides the user with the metadata in text form. Typical titles include titles, tracks, authors, genres, and comments.

1 illustrates a change in conventional ID3 tag form.

As shown in FIG. 1 (a), when an MP3 file is first released, the MP3 file is generally composed of voice data, but the metadata is represented using ID3 V1 (12) in the voice data, thereby improving usability of the voice data. The contents are shown in FIG. 1 (b) below.

As shown in Fig. 1 (b), the ID3 v1 (version 1) tag 12 is composed of textual tags and is located at the end of the MP3 file. One tag is limited to 128 characters, and each tag represents information such as a song title, artist, year, genre, and the like.

As shown in FIG. 1 (c), recent MP3 files use ID3 v2 (version 2) tags 14 and most MP3 players can recognize ID3 v2 tags 14. The ID3 v2 tag 14 has some significant changes compared to the ID3 V1 12. First, unlike ID3 V1 (12), there is almost no limit on the tag length. Variable-length tags, called frames, have a 16MB size limit and 256MB of metadata overall.

In addition, in the ID3 v2 tag 14, an additional tag may be added to an existing tag. Examples include composers, original artists, URLs, lyrics, copyrights, equalizer presets, and pictures. In addition, a user-defined tag is also possible and the ID3 v2 tag 14 is located in front of the voice data in the MP3 file, unlike the ID3 V1 12. Therefore, even if the user is streaming (streaming) can be played immediately, even if the user stops downloading the MP3 file, it is possible to play the downloaded portion.

2 shows a source of a conventional visualization image and published header file.

As shown in FIG. 2 (a), the visualization plug-in outputs a dynamic visualization image according to the decoded audio data.

In this case, Scalable Vector Graphics (SVG) is an XML graphics standard proposed by the World Wide Web Consortium (W3C) as a language based on XML to represent two-dimensional graphics. SVG embraces all the advantages of XML's openness and interoperability, and can be combined with other XML languages such as SMIL, GML, and MathML to be applied to a variety of Web applications. In addition, since high-quality dynamic graphics can be generated from real-time data, it can be applied to fields such as e-commerce, geographic information, education, and advertisement.

In addition, SVG allows three types of graphic object images, text, and vector graphic shapes (including straight or curved paths), and graphic objects created with SVG are processed in a vector way to ensure the quality of the graphic, regardless of resolution. You can zoom in or out while keeping it. In addition, SVG can produce high-quality graphics on a variety of platforms, regardless of operating system, can display high-quality graphics on portable devices, and can be used for printing.

On the other hand, SVG supports XSL as well as Cascading Style Sheets (CSS), a web standard, and enables graphic customization using style sheets. Therefore, style sheets can be used to separate the layout and content of a document and to effectively control graphical elements and attributes, reducing maintenance costs and making it easy to update.

As shown in FIG. 2 (b), the media player provider publishes a header file 20, for example in C, to provide a customized visualization image to a program developer. Therefore, the program developer may obtain audio information through the header file 20, and may configure a visualization image operating according to a sound source using the corresponding audio information. The above method also employs a Windows media player, for example, and likewise publishes a header file.

However, depending on the platform, the code constituting the visualization image must be programmed differently, and since the media player has movement information that performs the operation of a specific visualization image, the visualization image is different depending on the plug-in installed in each media player. Is expressed. In addition, there is a problem that it is difficult for a general user, not an experienced developer, to construct a visualization image that requires specialized knowledge.

Therefore, even the general user can easily configure the visualization operation, and there is a need to provide various visualization images according to the audio data without being platform dependent.

An object of the present invention is to provide an apparatus and method for providing a visualization image.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a visualization image providing apparatus according to an embodiment of the present invention includes an inserting unit for inserting a visualization format into a visualization tag and a control unit for determining whether the visualization format is inserted into the visualization tag and the visualization format. Parsing unit for parsing the visualization operation information to form a visualization image.

According to an embodiment of the present invention, a method of providing a visualization image includes inserting a visualization format into a visualization tag, determining whether the visualization format is inserted into the visualization tag, and parsing visualization motion information included in the visualization format. Forming a step.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

<Key term>

MP3 (MPEG Audio Layer-3) : one of the high-quality audio compression techniques defined in MPEG (MPEG), MP3 while keeping a close sound on the music CD, and can be 50 times the compression of normal CD, due to the superior quality and compression TCP It is widely used for AOD and Internet FM radio broadcasting on the Internet based on the Internet.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram of a visualization image providing apparatus according to an exemplary embodiment.

The visualization image providing apparatus 300 includes an inserting unit 310, a control unit 320, a parser 330, and an output unit 340.

The inserter 310 inserts the visualization format into the visualization tag. The visualization tag is preferably an ID3 tag (e.g., ID3 v1, ID3 v2), and the visualization format includes visualization behavior information and uses XML-based Scalable Vector Graphics (SVG) or other user-defined tags. It can be conveniently configured and inserted into visualization tags. In addition, the visualization motion information includes information such as shape, color, motion, height, and width of the visualization image. Through XML-based SVG, visualization images based on audio data can be applied to various platforms and can be applied to mobile devices.

The controller 320 determines whether a visualization format is inserted into the visualization tag. If the visualization format is not inserted, it is output using the basic visualization image included in the media player according to the existing processing method.

When the visualization format is inserted into the visualization tag, the parser 330 parses the visualization operation information included in the visualization format to form a visualization image.

The output unit 340 outputs the visualization image on the screen.

The 'unit' may be expressed as a 'module', and the 'module' refers to a hardware component such as software or a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC). Play some roles However, modules are not meant to be limited to software or hardware. The module may be configured to be in an addressable storage medium and may be configured to execute one or more processors. Thus, as an example, a module may include components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, procedures, subroutines, and the like. , Segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functionality provided by the components and modules may be combined into a smaller number of components and modules or further separated into additional components and modules.

4 is a flowchart of a method of providing a visualization image, according to an exemplary embodiment.

The visualization format is inserted into the visualization tag through the insertion unit 310 (S401). The visualization tag is preferably an ID3 tag (e.g., ID3 v1, ID3 v2), and the visualization format includes visualization behavior information and uses XML-based Scalable Vector Graphics (SVG) or other user-defined tags. It can be conveniently configured and inserted into visualization tags. In addition, the visualization motion information includes information such as shape, color, motion, height, and width of the visualization image. Through XML-based SVG, visualization images based on audio data can be applied to various platforms and can be applied to mobile devices.

The control unit 320 determines whether the visualization format is inserted into the visualization tag (S411). If the visualization format is not inserted, it is output using the basic visualization image included in the media player according to the existing processing method.

When the visualization format is inserted in the visualization tag, the visualization operation information included in the visualization format is parsed through the parser 330 to form a visualization image (S421).

The visualization image is output to the screen through the output unit 340 (S431).

5 shows a visualization format inserted in an ID3 tag according to an embodiment of the present invention.

For example, the ID3 v2 tag 510 included in the MP3 500 has frames configured with a predetermined number of tag IDs. Accordingly, the user may insert the visualization format 520 including the visualization motion information into the corresponding frame. In addition, the visualization format can be conveniently configured using XML-based Scalable Vector Graphics (SVG) or other user-defined tags to insert a visualization format including visualization motion information into the visualization tag. XML-based SVG can provide visualization images to various platforms and can be applied to mobile devices. In addition, the visualization operation information includes information such as shape, color, motion, height, and width of the visualization image.

For example, visualizing the operation information of the visualization format 520 is the width and color of a rectangular image as input to determine the height of the visualization spectral data (spectrumData) (522) value, and the display in accordance with that play music variables ( Visualization format 520 may be configured as an input value of a factor).

In this case, the frequency or waveform data of the audio data to be played may be mapped to the input value of the visualization format 520 and the visualization format 520 may be inserted into the ID3 v2 tag 510. By applying (corresponding) the frequency or waveform data of the audio data to spectrumData ) 522, the height of the visualization image may be dynamically defined according to the frequency or waveform data.

The above content may be briefly expressed as shown in Table 1 below.

Table 1

<shape><rectangle height = spectrumData width = 10 color = red> .. </ rectangle></shape> ..

The visualization operation information included in the visualization format 520 is parsed to form a visualization image and dynamically displayed according to audio data on the screen.

The visualization operation information included in the visualization format 520 may be defined in various forms. First, for example, when a two-dimensional shape of X and Z is defined through a shape related definition, a surface of a shape By assigning the Y coordinate value to determine the input value can form a display image in the form of a undulating map. The definition related to color can be used to assign random color values to the surface of the object, and the spatial coordinates of the object can be changed in three-dimensional space through the definition of a tag related to motion. You can also use the camera view to determine camera angles and various image views.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

According to the apparatus and method for providing a visualization image according to the present invention as described above, there is an advantage that a user can conveniently configure the visualization image according to audio data without depending on the platform.

Claims (5)

An insertion unit for inserting a visualization format into a visualization tag; A controller for determining whether the visualization format is inserted into the visualization tag; And And a parser configured to parse visualization operation information included in the visualization format to form a visualization image. The method of claim 1, And a frequency or waveform data of audio data corresponding to an input value of the visualization format, wherein the visualization tag is an ID3 tag. The method of claim 2, The visualization format is a visualization image providing device is configured via XML-based SVG. Inserting a visualization format into a visualization tag; Determining whether the visualization format is inserted into the visualization tag; And Parsing the visualization operation information included in the visualization format to form a visualization image. The method of claim 4, wherein And matching the frequency or waveform data of the audio data with an input value of the visualization format, wherein the visualization tag is an ID3 tag, and the visualization format is configured through XML-based SVG.

Images