KR20090001707A - System and method for playing multimedia contents, device for playing multimedia contents and program recording medium - Google Patents

Abstract

A regenerating method and a device about multi-media contents, a system thereof and a recording medium of a program are provided to solve discontent and a question by outputting a solution method to regenerate the multi-media contents without disconnection. A regenerating method about multi-media contents comprises the following steps of: confirming the information of storage capacity about received multimedia contents repetitively(335); extracting the composition information based on the confirmed information of storage capacity(340); generating the index information of each unit(345); regenerating the multi-media contents by using the generated index information(350).

Description

System and Method for Playing Multimedia Contents, Device for Playing Multimedia Contents and Program Recording Medium}

1 is a diagram illustrating a multimedia content structure following a conventional AVI file structure.

2 is a diagram illustrating a configuration of a real-time playback program function recorded on a recording medium provided in a terminal device for real-time playback of multimedia content according to the first embodiment of the present invention.

3 is a diagram illustrating real-time playback of multimedia content according to a first embodiment of the present invention.

4 is a diagram illustrating a configuration of a real time playback program function recorded on a recording medium provided in a terminal device for real time playback of multimedia contents according to the second embodiment of the present invention.

5 is a diagram illustrating real-time reproduction of multimedia content according to the second embodiment of the present invention.

6 is a diagram illustrating a configuration of a real time playback program function recorded on a recording medium provided in a terminal device for real time playback of multimedia content according to a third embodiment of the present invention.

7 is a diagram illustrating real-time playback of multimedia content according to a third embodiment of the present invention.

FIG. 8 is a diagram illustrating a configuration of a real time playback program function recorded on a recording medium provided in a terminal device for real time playback of multimedia content according to a fourth embodiment of the present invention.

9 is a diagram illustrating real-time reproduction of multimedia content according to a fourth embodiment of the present invention.

   <Description of main parts of drawing>

200: screen output unit 205: sound processing unit

210: key input unit 215: memory unit

220: communication processing unit 225: program providing server

230: content providing server 235: messenger terminal

240: main frame unit 245: content playback unit

250: information generating unit 255: information extracting unit

260: real-time playback determining unit 265: storage capacity checker

270: information confirmation unit 275: content receiving unit

280: content storage unit 285: header unit

290: Image data portion 295: Index portion

The present invention provides a method of reproducing a predetermined multimedia content, the method comprising: repeatedly checking the storage capacity information of the received multimedia content, and based on the identified storage capacity information, a part of the multimedia content file being received for each predetermined storage capacity unit. Extracting the configuration information of the; and generating index information for each storage unit based on the extracted information; and playing the multimedia content using the generated index information. to provide.

Most multimedia contents are generated by encoding analog video / audio signals input from an initial image acquisition device to generate predetermined video / audio data and storing the video / audio data according to various multimedia content file structures. do.

In this case, the encoding of the video / audio signal is generally performed by a predetermined compression codec including an integrated compression scheme, and the multimedia content file structure generally includes a file structure capable of accommodating the compressed codec.

In addition, the multimedia content may be divided into a file structure capable of real-time playback in accordance with the encoding and compression codec scheme of the video / audio signal, the multimedia content file structure, and a file structure in which real time playback is not possible.

Here, the file structure capable of real-time playback, in the transmission of multimedia content through a predetermined communication network, first transmits the header information constituting the multimedia content and index information necessary for multimedia content playback, and then the video of the multimedia content. / Video data corresponding to the audio data or the multimedia data or the multimedia data and the multimedia data corresponding to the video / audio data of the multimedia content after the first transmission of the header information constituting the multimedia content And a structure for transmitting together index information necessary for content reproduction.

On the other hand, the file structure that cannot be reproduced in real time, in the transmission of multimedia content through a predetermined communication network, the video corresponding to the video / audio data of the multimedia content after first transmitting the various header information constituting the multimedia content And transmitting the data and finally transmitting the index information necessary for playing the multimedia content.

Recently, information and communication technology has been rapidly developed, and as a result, many technical limitations (e.g., operation speed, communication speed, etc.) for file transmission and reception through a communication network are removed, so that the purpose of each multimedia content (eg, high capacity / high definition, low capacity / low quality) Various types of compression codecs are developed and distributed, which are mainly accommodated in AVI (Audio Video Interleaving) files using the video / audio synchronization technology (Interleaving) of Microsoft Corporation of the United States. In general, most multimedia contents transmitted and received through a communication network include the AVI file structure.

1 is a diagram illustrating a multimedia content structure following the conventional AVI file structure.

In more detail, Figure 1 illustrates the structure of the AVI file based on reference materials included in the MSDN (MicroSoft Developer Network) distributed by Microsoft Corporation for developers.

Referring to FIG. 1, the multimedia content following the AVI file structure includes a header unit 100 including predetermined content header information, an image data unit 105 including predetermined video / audio data, and the multimedia. It is characterized in that it comprises an index unit 110 including index information necessary for content reproduction, the preferred structure thereof is as follows.

RIFF ('AVI'

      LIST ('hdrl'

            'avih' (<Main AVI Header>)

            LIST ('strl'

                  'strh' (<Stream header>)

                  'strf' (<Stream format>)

                  'strd' (<additional header data>)

                  'strn' (<Stream name>)

                  ...

                 )

             ...

           )

      LIST ('movi'

            {SubChunk | LIST ('rec'

                              SubChunk1

                              SubChunk2

                                ...

                             )

               ...

            }

            ...

           )

      ['idx1' <AVI Index>]

)

The header part 100 of the multimedia content is located after a FOURCC (FOURCC) code called "RIFF" of the multimedia content. The header part 100 includes a main header and a stream header. .

The main header includes predetermined header information for the entire multimedia content and is defined through a MainAVIHeader structure. The MainAVIHeader structure includes frame rate information (dwMicroSecPerFrame), data rate information (dwMaxBytesPerSec), flag information (dwFlags), full frame information (dwTotalFrames), initial frame information (dwInitialFrames), and stream information (dwStreams). , At least one buffer size (dwSuggestedBufferSize) and horizontal / vertical resolution information (dwHeight, dwReserved), and the like, wherein the preferred embodiment of the main header information preferably includes the following structure format. .

typedef struct {

    DWORD dwMicroSecPerFrame;

    DWORD dwMaxBytesPerSec;

    DWORD dwReserved1;

    DWORD dwFlags;

    DWORD dwTotalFrames;

    DWORD dwInitialFrames;

    DWORD dwStreams;

    DWORD dwSuggestedBufferSize;

    DWORD dwWidth;

    DWORD dwHeight;

    DWORD dwReserved [4];

} MainAVIHeader;

The stream header 'strh' is located after the main header and is defined as an AVIStreamHeader structure. In addition, a stream format 'strf' is defined after the stream header, and the stream format is defined differently according to the stream format. If the stream format is a video stream, the stream format is defined as a BITMAPINFO structure containing predetermined palette information. When the stream format is an audio stream, the stream format is defined as a WAVEFORMATEX structure.

In addition, the stream header may additionally include stream header data 'strd' and a stream name 'strn'. The stream header data 'strd' defines a CODEC for the stream format. The stream name 'strn' includes a stream name string terminated with NULL.

The image data unit 105 may be composed of a plurality of chunks composed of predetermined data units by interleaving predetermined video data and audio data, and the image data (eg, synchronized video data). And audio data) is preferably reproduced in chunk units.

The image data section 105 directly describes at least one or more data chunks in the image data section 105 ('movi'), and groups the at least one or more data chunks into a predetermined record chunk 'rec'. The data chunk includes at least one case, and each data chunk includes a predetermined ultra-thin character code (fourcc). The ultra-thin character code included in the data chunk includes a 2-digit stream number and a 2-digit stream format. (db = uncompressed video frame, dc = compressed video frame, pc = palette change, wb = audio data).

The index unit 110 is located after the image data unit 105 and includes a list of the data chunks and position information in a file, and is defined by an AVIINDEXENTRY structure.

The AVIINDEXENTRY structure preferably includes a predetermined chunk identifier (ckid), flag information (dwFlags), chunk offset (dwChunkOffset), and chunk size (dwChunkLength), where a preferred embodiment of the index information is It is preferable to include the following structure type.

typedef struct {

    DWORD ckid;

    DWORD dwFlags;

    DWORD dwChunkOffset;

    DWORD dwChunkLength;

} AVIINDEXENTRY;

That is, in transmitting the multimedia content that follows the AVI file structure through a predetermined communication network, the multimedia content includes a header part 100, an image data part 105, and an index part 110 of the multimedia content sequentially. Since it will be transmitted, the apparatus (or terminal) for playing the multimedia content includes a problem that the multimedia content cannot be played until the index unit 110 is received (or until the reception of the multimedia content is completed). .

The present invention for solving the above problems repeatedly checks the storage capacity information of the multimedia content being received, generates index information for each storage unit based on the identified storage capacity information, and generates the generated index information. According to an aspect of the present invention, there is provided a multimedia content playing system including a program for playing the multimedia content by using the server and a server for providing the multimedia content and the multimedia content playing program to a user wired terminal or a wireless terminal.

According to an aspect of the present invention, there is provided a method of reproducing a predetermined multimedia content, the method comprising: repeatedly checking storage capacity information of a received multimedia content, and based on the identified storage capacity information, a predetermined storage capacity unit Extracting configuration information of a portion of the multimedia content file being received, generating index information for each storage unit based on the extracted information, and reproducing the multimedia content using the generated index information. It is characterized by comprising.

On the other hand, it includes a computer-readable recording medium, characterized in that for recording the program for executing the above-described multimedia content reproduction method.

The recording medium according to the present invention may be a wired or wireless terminal on which the program is executed or a server which stores and manages the program and transmits the program to a user terminal.

Meanwhile, the multimedia content reproduction system according to the present invention repeatedly checks the storage capacity information of the multimedia content being received, generates index information for each storage unit based on the identified storage capacity information, and generates the generated information. It comprises a program for playing the multimedia content using the index information, and a server for providing the multimedia content and the multimedia content playback program to a user wired terminal or a wireless terminal.

On the other hand, the multimedia content playback method according to the present invention, the step of repeatedly checking the storage capacity information of the multimedia content being received when the multimedia content of the streaming method, and the identified storage capacity information meets the index generation unit capacity information And determining whether the received storage capacity information corresponds to index generation unit capacity information, and generating index information of the received multimedia content for each unit capacity and for each unit capacity. And playing the multimedia content in a streaming manner using the index information.

In the multimedia content playback method according to the present invention, checking communication performance (bytes / sec) information and setting index generation unit capacity information for playing the multimedia content in a streaming method based on the identified communication performance information. Characterized in that further comprises.

On the other hand, it includes a computer-readable recording medium recording a program for executing the above-described multimedia content reproduction method.

The recording medium according to the present invention may be a wired or wireless terminal on which the program is executed or a server which stores and manages the program and transmits the program to a user terminal.

Meanwhile, the multimedia content reproduction system according to the present invention repeatedly checks the storage capacity information of the multimedia content being received when playing the multimedia content in a streaming method, and whether the identified storage capacity information corresponds to the index generation unit capacity information. If the determined storage capacity information matches the index generation unit capacity information, the index information for the received multimedia content is generated for each unit capacity, and then index information generated for each unit capacity is determined. A server for providing a multimedia content playback program and a multimedia content playback program to a user wired terminal or a wireless terminal using a streaming method, and transmitting the multimedia content to the user wired terminal or a wireless terminal in a streaming method. Characterized in that obtained by box.

On the other hand, the multimedia content reproduction method according to the present invention, the step of setting and storing the index generation unit capacity information for each communication performance (bytes / sec) of the terminal for playing the multimedia content in a streaming method, and streaming multimedia content playback Repeatedly checking the storage capacity information of the multimedia content being received; determining whether the identified storage capacity information corresponds to the stored index generation unit capacity information; and as a result of the determination, the checked storage If the capacity information corresponds to the index generation unit capacity information, generating index information for the received multimedia content for each unit capacity and reproducing the multimedia content by streaming using the index information generated for each unit capacity; To be made including It features.

On the other hand, it includes a computer-readable recording medium recording a program for executing the above-described multimedia content reproduction method.

The recording medium according to the present invention may be a wired or wireless terminal on which the program is executed or a server which stores and manages the program and transmits the program to a user terminal.

Meanwhile, the multimedia content reproduction system according to the present invention repeatedly checks the storage capacity information of the multimedia content being received when the multimedia content is reproduced in a streaming method, and the checked storage capacity information is preset and stored in communication performance (bytes / sec). ) Is determined whether or not the communication capacity (bytes / sec) of the terminal for playing the multimedia content in a streaming manner is matched with the index generation unit capacity information, and the determined storage capacity information is the communication performance (bytes). / sec) index generation unit according to the capacity information, generating the index information for the received multimedia content for each unit capacity, and using the index information generated for each unit capacity to play the multimedia content in a streaming method Program and the multimedia content playback program user Providing a line terminal or wireless terminal, and the multimedia content, characterized in that comprises a server for transmitting to the user wired terminal and a wireless terminal in a streaming manner.

Meanwhile, the apparatus for reproducing multimedia contents according to the present invention repeatedly checks the storage capacity information of the received multimedia content when playing predetermined multimedia content, and based on the identified storage capacity information, the predetermined storage capacity unit An information generator for extracting configuration information of a part of the multimedia content file being received and generating index information for each storage capacity based on the extracted information, and playing the content using the generated index information It is characterized by comprising a part.

Meanwhile, the multimedia content player according to the present invention repeatedly checks the storage capacity information of the multimedia content being received when playing the multimedia content in a streaming method, and determines whether the identified storage capacity information corresponds to the index generation unit capacity information. The information confirming unit and the information generating unit for generating index information on the received multimedia content for each unit capacity, if the determined storage capacity information matches the index generation unit capacity information. And a content reproducing unit for reproducing the multimedia content using information.

Meanwhile, an apparatus for reproducing multimedia contents according to the present invention includes an information setting unit for setting and storing index generation unit capacity information for each communication capability (bytes / sec) of a terminal for reproducing multimedia contents in a streaming manner, and multimedia contents in a streaming scheme. An information confirmation unit repeatedly checking the storage capacity information of the multimedia content being received and determining whether the identified storage capacity information corresponds to the stored index generation unit capacity information, and as a result of the determination, If the storage capacity information matches the index generation unit capacity information, an information generation unit for generating index information of the received multimedia content for each unit capacity and a content reproduction unit for reproducing the multimedia content using the generated index information. Characterized in that do.

On the other hand, the multimedia content playback apparatus according to the present invention comprises a device for reproducing the multimedia content in a streaming method over a wired communication network, and at least one device for reproducing the multimedia content in a streaming method over a wireless communication network. It features.

On the other hand, it includes a computer-readable recording medium recording a program for executing a function of the device configuration unit of the above-mentioned multimedia content playback apparatus.

On the other hand, the present invention provides a function of checking the capacity information of the received multimedia content and if the identified capacity information meets a predetermined unit capacity, the first function of playing the multimedia content corresponding to the received capacity in a streaming manner; And a computer readable recording medium having recorded thereon a program for execution.

The recording medium according to the present invention may be a wired or wireless terminal on which the program is executed or a server which stores and manages the program and transmits the program to a user terminal.

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the present invention.

In addition, preferred embodiments of the present invention to be carried out below are provided in each system functional configuration to efficiently describe the technical components constituting the present invention, or system functions that are commonly provided in the technical field to which the present invention belongs. The configuration will be omitted, and described mainly on the functional configuration to be additionally provided for the present invention. If those skilled in the art to which the present invention pertains, it will be easy to understand the functions of the components that are conventionally used among the omitted functional configuration not shown below, and also the configuration omitted as described above The relationship between the elements and the components added for the present invention will also be clearly understood.

In addition, the following examples will be used to appropriately modify, integrate, or separate the terminology so that those skilled in the art to which the present invention pertains may clearly understand the present invention. The present invention is by no means limited thereto.

As a result, the technical spirit of the present invention is determined by the claims, and the following examples are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It is only.

2 is a diagram illustrating a configuration of a real time playback program function recorded on a recording medium provided in a terminal device for real time playback of multimedia contents according to the first embodiment of the present invention.

More specifically, FIG. 2 does not include a predetermined multimedia content (eg, a file structure capable of streaming playback) in which a download from a predetermined content providing server 230 (or messenger terminal 235) is not completed (or being received). To a predetermined terminal device (for example, a desktop computer, a notebook computer, a mobile communication terminal, a portable Internet terminal, a wireless LAN terminal, an interactive digital TV, or an IPTV) in order to reproduce multimedia content in real time (or in a streaming manner). In the configuration of the preferred function of the real-time playback program, specifically, when the real-time playback program is provided with predetermined index generation unit capacity information for real-time playback (or streaming playback) of the multimedia content, the real-time playback program The down based on the index generation unit capacity information Degas the (or receiving) the multimedia contents is not completed illustrates the exemplary method for real-time playback (or played in a streaming method).

Those skilled in the art to which the present invention pertains may refer to and / or modify this drawing 2 to infer various implementation methods of the real-time playback program function configuration for real-time playback of multimedia contents. The invention includes all the inferred implementation methods, and is not limited to the implementation method shown in FIG.

For example, in FIG. 2, a function configuration unit (content reception unit 275 and content storage unit 280) for downloading predetermined multimedia content that has not been downloaded from a predetermined content providing server 230 (or messenger terminal 235). )) Is illustrated as being included in the real-time playback program, but the present invention is not limited thereto, and the function of downloading the multimedia content is provided in addition to the real-time playback program. Browser program, messenger program, etc.), and the present invention is not limited thereto.

Referring to FIG. 2 according to an embodiment of the present invention, the terminal device may be a predetermined communication network (eg, a Transmission Control Protocol / Internet Protocol (TCP / IP) based wired communication network or a High-Speed Downlink Packet Access (HSDPA) based radio). And a communication processor 220 for connecting a communication channel with a predetermined server (or terminal) through a communication network or an IEEE 802.16x based wireless communication network.

The communication processing unit 220 may be connected to a predetermined communication network (eg, a TCP / IP-based wired communication network, a HSDPA-based wireless communication network, an IEEE 802.16x-based wireless communication network, etc.) to which the terminal apparatus is connected. It stores and manages the real-time playback program, and connects a communication channel with a predetermined program providing server 225 for transmitting the real-time playback program to the terminal device, the predetermined provided in the program providing server 225 And downloading the real-time reproducing program recorded on the recording medium of the recording medium provided in the terminal apparatus.

In addition, the communication processing unit 220 may be a predetermined communication network (for example, a TCP / IP-based wired communication network, a high-speed downlink packet access (HSDPA) based wireless communication network, an IEEE 802.16x based wireless communication network, etc.) to which the terminal apparatus is connected. Through a predetermined content providing server 230 (or messenger terminal 235) and the communication channel for downloading (or receiving) the multimedia content, characterized in that the content providing server 230 (or messenger terminal ( 235) to download (or receive) at least one or more multimedia contents stored in a predetermined storage medium.

Referring to FIG. 2, the terminal device including the real-time playback program includes a screen output unit 200 for outputting video data of the multimedia content, a sound processor 205 for outputting audio data of the multimedia content, And a key input unit 210 for inputting various keys for controlling reproduction of the multimedia contents, and communication for receiving the multimedia contents with a predetermined content providing server 230 (or messenger terminal 235). And a communication unit 220 for connecting and managing a channel, and a memory unit 215 for storing the downloaded multimedia content, wherein the real time playback program is linked with the function configuration unit. Download from the provisioning server 230 (or messenger terminal 235) is not complete (or is being received) It is characterized by reproducing a predetermined playback target multimedia content in real time.

In order to reproduce (or play in streaming) multimedia content downloaded (or received) through the communication processor 220, the screen output unit 200 may decode video data of the multimedia content decoded by the real-time play program. Characterized in that it performs the function of the screen output means for outputting.

The sound processor 205 outputs the audio data of the multimedia content decoded by the real time playback program in order to reproduce the multimedia content downloaded (or received) through the communication processor 220 in real time. It characterized in that to perform the function of the sound output means.

When the predetermined multimedia content is received from the predetermined content providing server 230 (or the messenger terminal 235), the memory unit 215 stores the received multimedia content. A header unit 285 including predetermined content header information, an image data unit 290 including predetermined video / audio data, and an index unit 295 including index information necessary for playing the multimedia content. It is preferable to make it.

The header portion 285 of the multimedia contents is structure information located after a FOURCC (FOURCC) code called "RIFF" of the multimedia contents, and includes predetermined main header information, stream header information, and stream format. At least one header information such as information, stream data, stream name, and the like is preferably further included.

The image data unit 290 may be composed of a plurality of chunks composed of predetermined data units by interleaving predetermined video data and audio data, and the image data (eg, synchronized video data). And audio data) is preferably reproduced in chunk units.

According to the exemplary embodiment of the present invention, the image data unit 290 directly describes at least one data chunk in the image data unit 290 ('movi'), and records at least one data chunk in a predetermined record. It is preferable to include at least one case of grouping in the chunk 'rec'.

The index unit 295 preferably includes a chunk identifier, flag information, chunk offset, and chunk size for reproducing the video data in the chunk unit.

Referring to FIG. 2, the real-time playback program controls the real-time playback program to operate based on a recording medium provided in the terminal device in connection with an operating system (or platform) provided in the terminal device. Interworking at least one or more function components constituting the real time playback program for real time playback, and / or at least one of the function components provided in the terminal device through an operating system (or platform) provided in the terminal device. It is characterized in that it comprises a main frame unit (Mainfrmae) to perform a function for real-time playback of the multimedia content in conjunction with the above components.

The mainframe unit may include a program execution code for executing the real-time playback program on an operating system (or a platform) provided in the terminal device. Thus, the mainframe unit is provided to the terminal device and then executes a predetermined program. In response to a command, the real-time playback program is executed based on the operating system (or platform) provided in the terminal device.

In addition, the mainframe unit is characterized in that the control to interoperate at least one or more functional components provided in the real-time playback program for the real-time playback of the multimedia content, thereby the real-time playback for the real-time playback of the multimedia content At least one functional component constituting the program allocates an instance to the mainframe, whereby the functional components are cross-referenced and / or interworked.

In addition, the mainframe unit may be provided to at least one component (eg, the key input unit 210 and / or the screen output unit 200, etc.) provided in the terminal device in order for the multimedia component to be reproduced in real time. Obtaining a handle (and / or interrupt) for access, whereby each functional component constituting the real-time playback program accesses each component provided in the terminal device, respectively. Characterized by performing a unique function defined in the functional configuration of the.

In addition, the mainframe unit may be provided to at least one component (eg, the key input unit 210 and / or the screen output unit 200, etc.) provided in the terminal device in order for the multimedia component to be reproduced in real time. Obtaining an interrupt for access and / or accessing an input / output bus corresponding to a peripheral device provided in the terminal device, whereby each of the functional components constituting the real-time playback program is controlled by the terminal. Each component provided in the device is accessed to perform a unique function defined in each functional component.

Referring to FIG. 2, the real-time playback program is a content receiver configured to receive predetermined multimedia contents from a predetermined content providing server 230 (or messenger terminal 235) through the communication network in cooperation with the communication processing unit 220. 275 and a content storage unit 280 for storing the received multimedia content in the memory unit 215.

The content receiving unit 275 receives a predetermined reception target multimedia content from a predetermined content providing server 230 (or messenger terminal 235) provided on the communication network in cooperation with the communication processing unit 220. The content receiving unit 275 sequentially receives the image data unit 290 and the index unit 295 from the header unit 285 of the multimedia content.

The content storage unit 280 is configured to receive the multimedia content that the content receiving unit 275 receives from the content providing server 230 (or the messenger terminal 235) in association with the communication processing unit 220. 215, and when the content receiving unit 275 sequentially receives the multimedia content from the header unit 285, the image data unit 290, and the index unit 295, the content storage unit. Also, the received multimedia content may be sequentially stored from the header unit 285 to the image data unit 290 and the index unit 295.

According to an embodiment of the present invention, the content receiving unit 275 and the content storing unit 280 are included in a predetermined content reproducing means (for example, a content reproducing program provided in the terminal device) included in the terminal device. It is desirable to be.

According to another exemplary embodiment of the present invention, the content receiving unit 275 is provided in a predetermined browser communication means (for example, a browser program provided in the terminal device, not shown) provided in the terminal device, or the terminal device. It is possible to be provided in a predetermined messenger communication means (for example, a messenger program provided in the terminal device, not shown) provided in the.

Referring to FIG. 2, the real-time playback program includes a content playback unit 245 for identifying (or selecting) a playback target multimedia content among predetermined multimedia contents stored in (or stored in) the memory unit 215; A real time playback determining unit 260 for checking whether the multimedia content to be played is a real time playback object and a storage capacity for repeatedly checking a storage capacity of the received multimedia content when the multimedia content is determined to be a real time playback object; An information checking unit periodically checking whether or not the storage capacity of the multimedia content reaches (or exceeds) predetermined index generation unit capacity information for real-time playback (or streaming). The storage capacity of the multimedia content reaches the index generation unit capacity (or And an information extraction unit 255 for extracting configuration information of a part of the multimedia content file stored in the memory unit 215 to generate index information for each predetermined storage unit, and based on the extracted configuration information. And an information generation unit 250 for generating index information for each storage capacity unit for the multimedia content, and the content reproducing unit 245 generates the multimedia content based on the index information for each storage capacity unit. It characterized in that to play.

The content reproducing unit 245 checks a multimedia content to be reproduced from at least one multimedia content stored in (or stored in) the memory unit 215 in association with the screen output unit 200 and the key input unit 210. (Or select) and perform a predetermined initialization operation for playing the identified (or selected) predetermined playback target multimedia content, wherein the real time playback determination unit 260 performs the playback during the initialization operation. The file information of the target multimedia content may be read to determine whether the playback target multimedia content is included in the real-time playback target.

According to an exemplary embodiment of the present invention, the real-time playback determining unit 260 reads the file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played and plays the read back. By checking whether the target multimedia content is being received by the content receiving unit 275 or the multimedia content being stored by the content storage unit 280, it is preferable to confirm whether the target multimedia content is included in the real-time playback object. Do.

If the read result of the file handle (or interrupt information on the file or access permission information of the file) of the multimedia content to be reproduced, the multimedia content to be reproduced is being received by the content receiving unit 275. Or, if the multimedia content is being stored by the content storage unit 280, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the real time playback determining unit 260 may include an index unit 295 valid for the multimedia content file based on the header information included in the header unit 285 of the multimedia content to be played. It is preferable to check whether the content to be reproduced is included in the real-time playback object by checking whether the content is included.

If the effective multimedia unit 295 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If the result of the determination of the real-time playback determining unit 260 indicates that the multimedia content to be played is not included in the real-time playback object, the content playback unit 245 plays the multimedia content according to a predefined multimedia content playback procedure. Preferably, the content player 245 includes multimedia content (eg, a file structure capable of streaming playback) that is not included in the real-time playback object. It will be familiar with the technical features for playing the multimedia content, or the multimedia content that has been downloaded), a detailed description thereof will be omitted for convenience.

On the other hand, if the result of the determination by the real time playback determining unit 260 indicates that the multimedia content to be played is included in the real time playback object, the real time playback determination unit 260 checks the storage capacity multimedia content information on the storage capacity confirmation unit 265. To provide.

The storage capacity checking unit 265 periodically checks the storage capacity of the multimedia content received through the content receiving unit 275 or is stored in the memory unit 215 through the content storage unit 280. Periodically checking the multimedia content storage capacity.

The information checking unit 270 checks whether the checked multimedia content storage capacity reaches (or exceeds) a predetermined index generation unit capacity.

According to an embodiment of the present invention, the information checking unit 270 is a predetermined index for generating predetermined index information required for real-time playback (or streaming playback) of the predetermined multimedia content in the real-time playback program. It is preferable to include the generation unit capacity information (for example, in a constant form in the program code).

According to another exemplary embodiment of the present invention, predetermined index generation unit capacity information for generating predetermined index information required for real time playback (or streaming playback) of predetermined multimedia content in the real time playback program may include: The index check unit 270 is stored in the memory unit 215 provided in the device, and the information check unit 270 checks the index generation unit capacity information stored in the memory unit 215.

According to an embodiment of the present invention, the information checking unit 270 generates index information for each storage capacity unit for the multimedia content when the storage capacity of the identified multimedia content reaches (or exceeds) the index generation unit capacity. It is preferable to confirm that the conditions are satisfied.

When it is confirmed by the information confirming unit 270 that the index information generation condition for each storage capacity unit for the multimedia content is satisfied, the information extracting unit 255 stores the memory to generate index information for each unit capacity. And extracting configuration information of a part of the multimedia content file stored in the unit 215.

According to an embodiment of the present invention, the information extracting unit 255 reads the header portion 285 of the multimedia content to extract header information for the multimedia content, and extracts the header of the data chunk based on the header information. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 290 based on the ultra-thin character code and the size of the data chunk.

For example, the information extracting unit 255 may check the size and the actual stream data of the first data chunk including the first two-character code of the first data chunk (eg, 00db, or 00dc, or 00pc, or 00wb). Identify a second data chunk ultrathin character code (eg, 01db, or 01dc, or 01pc, or 01wb) after the first data chunk, wherein the ultrathin character code of the second data chunk is the actual stream data of the first data chunk; It will be located next.

If the information extracting unit 255 checks the first character code and size of the nth (n> 1) data chunk and the actual stream data, the (n + 1) th data is added after the actual stream data of the nth data chunk. If the n-th data chunk of the chunk is not confirmed, and the n-th data chunk is regarded as damaged, in this case, the information extraction unit 255 shifts the actual stream data of the n-th data chunk by one byte unit. After retrieving the ultrathin character code of the (n + 1) th data chunk, it is desirable to check the ultrathin character code and size and actual stream data of the (n + 1) th data chunk, whereby the corrupted data chunk is detected. Can be.

When data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 290 is extracted, the information generator 250 may generate the data chunk information. And generating index information for each storage capacity unit for playing the multimedia content, wherein the index information for each storage capacity unit is generated in the form of an AVIINDEXENTRY structure.

Thereafter, the content reproducing unit 245 plays the multimedia content to be reproduced based on the index information for each storage capacity unit generated by the information generating unit 250.

According to the exemplary embodiment of the present invention, the storage capacity checking unit 265 repeatedly checks the storage capacity of the received multimedia content in connection with the content receiving unit 275 (or the content storage unit 280), and The information checking unit 270 checks whether the storage capacity of the multimedia content reaches (or exceeds) predetermined index generation unit capacity information for real time playback (or streaming playback), and the information extraction unit 255 Extracting configuration information of a part of the multimedia content file stored in the memory unit 215, and generating, by the information generation unit 250, index information for each storage capacity unit of the multimedia content based on the extracted configuration information; Is a multimedia device in which all of the multimedia content is received through the content receiving unit 275 and received through the content storing unit 280. That both control content is being repeated until the storage in the memory unit 215 is preferred.

When all of the multimedia content is received / stored through the content receiving unit 275 and the content storage unit 280, the information generating unit 250 generates final index information for the multimedia content. The content player 245 plays the multimedia content on the basis of the final index information.

3 is a diagram illustrating real-time reproduction of multimedia content according to the first embodiment of the present invention.

In more detail, FIG. 3 shows a real-time playback (or streaming) of the multimedia content when the real-time playback program included in the terminal device shown in FIG. 2 plays the multimedia content including the content structure shown in FIG. Method of the present invention, a person having ordinary skill in the art to which the present invention pertains may refer to and / or modify the present invention to perform real time playback (or streaming method) of the multimedia content. Various implementation methods for the process may be inferred, but the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

Hereinafter, in FIG. 3, the terminal device shown in FIG. 2 having the real time playback program is referred to as " terminal "

Referring to FIG. 3, a predetermined playback target multimedia content to be provided and played by the terminal is selected from at least one or more multimedia contents included in a predetermined content providing server 230 (or messenger terminal 235) in the terminal. And receiving the playback target multimedia content provided by the content providing server 230 (or the messenger terminal 235) by executing the real time playback program shown in FIG. 2 (305). When more than the header portion 285 of the multimedia content is received 310, the header information of the multimedia content to be played is read to determine whether the multimedia content to be played is included in the real-time playback object (315).

According to an exemplary embodiment of the present invention, the terminal reads file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played, and the multimedia content is played back. By checking whether the multimedia content is being received by the receiver 275 or being stored by the content storage unit 280, it is preferable to check whether the multimedia content to be played is included in the real-time playback object.

If a result of reading file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played back, the multimedia content to be played is being received by the content receiving unit 275. Or, if the multimedia content being stored by the content storage unit 280, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the terminal determines whether a valid index unit 295 is already included in the multimedia content file based on the header information included in the header unit 285 of the multimedia content to be played. It is preferable to check whether the playback target multimedia content is included in the real time playback target.

If the effective multimedia unit 295 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If the playback target multimedia contents are not included in the real time playback target (320), the terminal plays back the playback target multimedia contents according to a predefined multimedia content playback procedure (325).

Those skilled in the art to which the present invention pertains may include multimedia content (eg, multimedia content including a file structure capable of streaming playback, or download-completed multimedia content) that the terminal is not included in the real-time playback object. Since you will be familiar with the technical features to reproduce, a detailed description thereof will be omitted for convenience.

On the other hand, if the playback target multimedia content is included in the real-time playback target (320), the terminal generates an index for the storage capacity of the playback target multimedia content received from the content providing server 230 (or messenger terminal 235) By checking whether the unit capacity is reached (or exceeded), it is checked whether the first (i = 1) index information generation condition for each unit capacity is satisfied (330).

If it is determined that the first (i = 1) unit capacity index information generation condition is satisfied (335), the terminal extracts header information and data chunk information of the multimedia content to be played (340).

According to an embodiment of the present invention, the terminal reads the header portion 285 of the multimedia content to extract header information for the multimedia content, and based on the header information, the first letter code and the data chunk of the data chunk. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 290 based on the size of.

For example, the terminal checks the size and the actual stream data of the first data chunk including the ultra-thin character code (eg, 00db, or 00dc, or 00pc, or 00wb) of the first data chunk, and after the first data chunk. Identify a second data chunk ultra-short character code (e.g., 01db, or 01dc, or 01pc, or 01wb), wherein the ultra-text character code of the second data chunk will be located after the actual stream data of the first data chunk. .

If the terminal checks the first character code and size and actual stream data of the nth (n> 1) data chunk, the first character code of the (n + 1) th data chunk is added after the actual stream data of the nth data chunk. If is not confirmed, if the n-th data chunk is considered to be corrupted, in this case, the terminal shifts the actual stream data of the n-th data chunk by one byte unit, and thus the first head of the (n + 1) data chunk. After retrieving the character code, it is desirable to check the initial head code and size of the (n + 1) data chunk and the actual stream data, whereby corrupted data chunks can be detected.

Thereafter, the terminal generates first (i = 1) index information for each unit capacity for playing the received multimedia content based on the extracted header information and data chunk information (345), and the generated first (i = 1) The first (i = 1) multimedia content playing area is decoded and played based on the index information for each unit capacity (350), and it is checked whether all the multimedia content being played are received (355).

If all of the multimedia content is not received (360), the terminal reaches the preset index generation unit capacity of the playback target multimedia content storage capacity received from the content providing server 230 (or messenger terminal 235). (Or exceeding), confirming whether the second (i = i + 1) unit capacity index generation condition is satisfied (365), and generating the index information for each unit capacity according to the check result to the multimedia The process of playing the content is repeated.

On the other hand, if all of the multimedia content has been received (360), the terminal generates the final index information for the playback target multimedia content (370), decoding the multimedia content through the generated final index information to play (375).

4 is a diagram showing the configuration of a real-time playback program function recorded on a recording medium provided in a terminal device for real-time playback of multimedia contents according to the second embodiment of the present invention.

In more detail, FIG. 4 does not include a predetermined multimedia content (eg, a file structure capable of streaming playback) that is not completed (or being received) from a predetermined content providing server 430 (or messenger terminal 435). Is provided in a predetermined terminal device (for example, a desktop computer, a notebook computer, a mobile communication terminal, a portable Internet terminal, a wireless LAN terminal, an interactive digital TV, an IPTV, etc.) for real time playback (or streaming playback). A preferred function configuration of a real-time playback program, wherein the predetermined index generation unit is set after setting predetermined index generation unit capacity information corresponding to communication performance for downloading (or receiving) the multimedia content in the real-time playback program. Based on the capacity information, the download may not be completed (or Being) shows an exemplary method for periodically generating a unit dose by the index information for a multimedia content, playing back the multimedia content in real-time reproduction (or streaming).

Those skilled in the art to which the present invention pertains may refer to and / or modify this drawing 4 to infer various implementation methods of the real-time playback program function configuration for real-time playback of multimedia contents. The invention includes all the inferred implementation methods, and is not limited to the implementation method shown in FIG.

For example, in FIG. 4, a function configuration unit (content reception unit 480, content storage unit 485) for downloading predetermined multimedia content that has not been downloaded from a predetermined content providing server 430 (or messenger terminal 435). )) Is illustrated as being included in the real-time playback program, but the present invention is not limited thereto, and the function of downloading the multimedia content is provided in addition to the real-time playback program. Browser program, messenger program, etc.), and the present invention is not limited thereto.

Referring to FIG. 4 according to an embodiment of the present invention, the terminal apparatus may be a predetermined communication network (eg, a Transmission Control Protocol / Internet Protocol (TCP / IP) based wired communication network or a High-Speed Downlink Packet Access (HSDPA) based radio). And a communication processor 420 for connecting a communication channel with a predetermined server (or terminal) through a communication network or an IEEE 802.16x based wireless communication network.

The communication processing unit 420 is connected to a predetermined communication network (for example, a TCP / IP-based wired communication network, a HSDPA-based wireless communication network, an IEEE 802.16x-based wireless communication network, etc.) to which the terminal device is connected. It stores and manages a real-time playback program, and connects a communication channel with a predetermined program providing server 425 for transmitting the real-time playback program to the terminal device, the predetermined provided in the program providing server 425 And downloading the real-time reproducing program recorded on the recording medium of the recording medium provided in the terminal apparatus.

In addition, the communication processing unit 420 connects a predetermined communication network (for example, a TCP / IP-based wired communication network, a HSDPA-based wireless communication network, an IEEE 802.16x-based wireless communication network, etc.) to which the terminal apparatus is connected. Through a predetermined content providing server 430 (or messenger terminal 435) and a communication channel for downloading (or receiving) multimedia content, characterized in that the content providing server 430 (or messenger terminal 435). And downloading (or receiving) at least one or more multimedia contents stored in a predetermined storage medium provided at)).

Referring to FIG. 4, the terminal device including the real-time playback program includes a screen output unit 400 for outputting video data of the multimedia content, a sound processor 405 for outputting audio data of the multimedia content, And a key input unit 410 for inputting various keys for controlling reproduction of the multimedia contents, and communication for receiving the multimedia contents with a predetermined content providing server 430 (or messenger terminal 435). And a communication processor 420 for connecting and managing channels, and a memory unit 415 for storing the downloaded multimedia contents, wherein the real-time playback program is linked to the function configuration unit. Downloading from the provision server 430 (or messenger terminal 435) is not complete (or being received) ) Characterized in that the real-time playback of the predetermined reproduced multimedia content.

In order to play (or stream) the multimedia content downloaded (or received) through the communication processor 420, the screen output unit 400 may decode video data of the multimedia content decoded by the real-time playback program. Characterized in that it performs the function of the screen output means for outputting.

The sound processor 405 outputs audio data of the multimedia content decoded by a real time playback program in order to reproduce (or stream) the multimedia content downloaded (or received) through the communication processor 420. It characterized in that to perform the function of the sound output means.

When the predetermined multimedia content is received from the predetermined content providing server 430 (or the messenger terminal 435), the memory unit 415 stores the received multimedia content. A header portion 490 including predetermined content header information, an image data portion 495 including predetermined video / audio data, and an index portion 497 including index information necessary for playing the multimedia contents. It is preferable to make it.

The header portion 490 of the multimedia content is structure information located after a FOURCC (FOURCC) code called "RIFF" of the multimedia content, and includes predetermined main header information, stream header information, and stream format. At least one header information such as information, stream data, stream name, and the like is preferably further included.

The image data unit 495 preferably includes a plurality of chunks configured by predetermined data units by synchronizing predetermined video data and audio data. The image data (eg, synchronized video data). And audio data) is preferably reproduced in chunk units.

According to an embodiment of the present invention, the image data unit 495 may describe at least one data chunk directly in the image data unit 495 ('movi'), and at least one data chunk may be written as a predetermined record. It is preferable to include at least one case of grouping in the chunk 'rec'.

The index unit 497 preferably includes a chunk identifier, flag information, chunk offset, and chunk size for reproducing the video data in the chunk unit.

Referring to FIG. 4, the real time playing program controls the real time playing program to operate based on a recording medium provided in the terminal device in connection with an operating system (or platform) provided in the terminal device. At least one or more functional components constituting the real-time playback program for real-time playback, and / or at least one of the functional components provided in the terminal device through an operating system (or platform) provided in the terminal device. The mainframe unit 440 (Mainfrmae) is provided to perform a function for real-time reproduction of the multimedia content in conjunction with the above components.

The main frame unit 440 is characterized in that it comprises a program execution code for executing the real-time playback program on the operating system (or platform) provided in the terminal device, thereby being provided in the terminal device, In response to a predetermined program execution command, the real-time playback program is executed based on the operating system (or platform) provided in the terminal device.

In addition, the mainframe unit 440 controls to interoperate at least one or more functional components provided in the real-time playback program for real-time playback of the multimedia content, thereby real-time playback of the multimedia content At least one functional component constituting the real-time playback program is assigned an instance to the mainframe unit 440 so that the functional components are cross-referenced and / or interworked.

In addition, the mainframe unit 440 may include at least one or more components (eg, a key input unit 410 and / or a screen output unit 400) in which the functional units are provided in the terminal device for real time playback of the multimedia content. And a handle (and / or interrupt) for accessing the same), whereby each of the functional components constituting the real-time playback program is provided with each component provided in the terminal device. Access to perform a unique function defined in each functional component.

In addition, the mainframe unit 440 may include at least one or more components (eg, a key input unit 410 and / or a screen output unit 400) in which the functional units are provided in the terminal device for real time playback of the multimedia content. Obtaining an interrupt for accessing the terminal), and / or accessing an input / output bus corresponding to a peripheral device provided in the terminal device, thereby configuring each function configuring the real-time playback program. The units may access each component provided in the terminal device to perform a unique function defined in each functional component.

Referring to FIG. 4, the real time playback program is a content receiver configured to receive predetermined multimedia content from a predetermined content providing server 430 (or a messenger terminal 435) through the communication network in association with the communication processing unit 420. 480 and a content storage unit 485 for storing the received multimedia content in the memory unit 415.

The content receiving unit 480 receives a predetermined reception target multimedia content from a predetermined content providing server 430 (or a messenger terminal 435) provided on the communication network in cooperation with the communication processing unit 420. The content receiving unit 480 sequentially receives the image data unit 495 and the index unit 497 from the header unit 490 of the multimedia content.

The content storage unit 485 may receive the multimedia content that the content receiving unit 480 receives from the content providing server 430 (or the messenger terminal 435) in association with the communication processing unit 420. And the content receiving unit 480 sequentially receives the multimedia content from the header unit 490, the image data unit 495, and the index unit 497. In operation 485, the received multimedia content may be sequentially stored from the header unit 490 to the image data unit 495 and the index unit 497.

According to an embodiment of the present invention, the content receiving unit 480 and the content storing unit 485 are included in a predetermined content reproducing means (for example, a content reproducing program provided in the terminal device) included in the terminal device. It is desirable to be.

According to another exemplary embodiment of the present invention, the content receiving unit 480 is provided in a predetermined browser communication means (for example, a browser program provided in the terminal apparatus, not shown) provided in the terminal apparatus, or the terminal apparatus. It is possible to be provided in a predetermined messenger communication means (for example, a messenger program provided in the terminal device, not shown) provided in the.

Referring to FIG. 4, the real-time playback program includes: a content playback unit 450 for identifying (or selecting) a playback target multimedia content among predetermined multimedia contents stored in (or stored in) the memory unit 415; A real-time playback determining unit 445 for checking whether the multimedia content to be played is a real-time playback target, and when the multimedia content to be played is determined to be a real-time playback target, is linked with the communication processor 420 (or the content receiver 480). An information setting unit 465 for setting predetermined index generation unit capacity information for seamlessly downloading (or receiving) the playback target multimedia content, and a storage capacity for repeatedly checking a storage capacity of the received multimedia content The identification unit 470 and the storage capacity of the multimedia content set index generation unit capacity information An information checking unit 475 for checking whether the storage device has reached (or exceeding) and, when the storage capacity of the multimedia content reaches (or exceeds) the index generating unit capacity, to generate index information for a predetermined unit capacity. An information extracting unit 460 for extracting configuration information of a part of the multimedia content file stored in the memory unit 415, and an information generating unit for generating index information for each unit capacity of the multimedia content based on the extracted configuration information; And 455, wherein the content reproducing unit 450 plays the multimedia content on the basis of the index information for each unit capacity.

The content reproducing unit 450 checks at least one multimedia content of at least one multimedia content stored in (or stored in) the memory unit 415 in association with the screen output unit 400 and the key input unit 410. (Or select) and perform a predetermined initialization operation for playing the checked (or selected) predetermined playback target multimedia content, wherein the real time playback determination unit 445 performs the playback during the initialization operation. The file information of the target multimedia content may be read to determine whether the playback target multimedia content is included in the real-time playback target.

According to an exemplary embodiment of the present invention, the real-time playback determining unit 445 reads the file handle information (or interrupt information on the file or access permission information of the file) of the multimedia content to be played and plays the data. By checking whether the target multimedia content is being received by the content receiving unit 480 or the multimedia content being stored by the content storage unit 485, it is preferable to check whether the target multimedia content is included in the real time playback object. Do.

If a result of reading file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played back, the multimedia content to be played is being received by the content receiver 480 or Or, if the multimedia content being stored by the content storage unit 485, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the real time playback determining unit 445 may include an index unit 497 valid for the multimedia content file based on the header information included in the header unit 490 of the multimedia content to be played. It is preferable to check whether the content to be reproduced is included in the real-time playback object by checking whether the content is included.

If the effective index unit 497 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If, as a result of the determination by the real-time playback determining unit 445, the multimedia content to be played is not included in the real-time playback object, the content playback unit 450 may play the multimedia content according to a predefined multimedia content playback procedure. Preferably, the content playback unit 450 includes multimedia content (eg, a file structure capable of streaming playback) that is not included in the real-time playback object. It will be familiar with the technical features for playing the multimedia content, or the multimedia content that has been downloaded), a detailed description thereof will be omitted for convenience.

On the other hand, if the real-time playback determination unit 445 determines that the multimedia content to be played is included in the real-time playback target, the real-time playback determination unit 445 may transmit the multimedia content information to the playback target information setter 465. The storage capacity checking unit 470 is provided.

The information setting unit 465 checks the communication performance (Bytes / sec) corresponding to the download (or reception) of the multimedia content in connection with the communication processing unit 420 (or the content receiving unit 480), and the checked And setting and storing predetermined index generation unit capacity information corresponding to the communication performance.

According to an exemplary embodiment of the present invention, the information setting unit 465 includes at least one communication performance information and index generation unit capacity information corresponding to each communication performance (eg, in a constant form in a program code). When the communication performance corresponding to the multimedia content download (or reception) is confirmed, the information setting unit 465 indexes the index generation unit capacity information corresponding to the checked communication performance. It is preferable to set the index generation unit capacity information for generating information.

According to another exemplary embodiment of the present invention, it is preferable that the memory unit 415 stores at least one communication performance information in association with index generation unit capacity information corresponding to each communication performance, and downloads the multimedia content (or Reception), the information setting unit 465 generates index information for each unit capacity by generating index generation unit capacity information corresponding to the checked communication performance in association with the memory unit 415. It is preferable to set the index generation unit capacity information.

The storage capacity checking unit 470 periodically checks the storage capacity of the multimedia content received through the content receiving unit 480 or is stored in the memory unit 415 through the content storage unit 485. Periodically checking the multimedia content storage capacity.

The information checking unit 475 periodically checks whether the checked multimedia content storage capacity reaches (or exceeds) the checked index generation unit capacity.

According to the exemplary embodiment of the present invention, the information checking unit 475, when the storage capacity of the identified multimedia content reaches (or exceeds) the index generation unit capacity, the index information generation condition for each unit capacity for the multimedia content It is preferable to confirm that it is satisfied.

When it is confirmed by the information confirming unit 475 that the index information generation condition for each unit capacity for the multimedia content is satisfied, the information extracting unit 460 generates the memory unit to generate predetermined index information for each unit capacity. And extracting configuration information of a part of the multimedia content file stored at 415.

According to the exemplary embodiment of the present invention, the information extracting unit 460 reads the header unit 490 of the multimedia content to extract header information of the multimedia content, and the head of the data chunk is based on the header information. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 495 based on the character code and the size of the data chunk.

For example, the information extracting unit 460 checks the size and the actual stream data of the first data chunk including the first two-character code of the first data chunk (eg, 00db, or 00dc, or 00pc, or 00wb). Identify a second data chunk ultrathin character code (eg, 01db, or 01dc, or 01pc, or 01wb) after the first data chunk, wherein the ultrathin character code of the second data chunk is the actual stream data of the first data chunk; It will be located next.

If the information extracting unit 460 checks the first head code and size of the nth (n> 1) data chunk and the actual stream data, the information extractor 460 is followed by the (n + 1) th data after the actual stream data of the nth data chunk. If the first n-th character code of the chunk is not confirmed, if the n-th data chunk is regarded as damaged, in this case, the information extraction unit 460 shifts the actual stream data of the n-th data chunk by one byte unit. After retrieving the ultrathin character code of the (n + 1) th data chunk, it is desirable to check the ultrathin character code and size and actual stream data of the (n + 1) th data chunk, whereby the corrupted data chunk is detected. Can be.

When data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 495 is extracted, the information generator 455 may extract the data chunk information. And generating index information for each unit capacity for playing the multimedia content, wherein the index information for each unit capacity is generated in the form of an AVIINDEXENTRY structure.

Thereafter, the content reproducing unit 450 plays the multimedia content to be reproduced based on the index information for each unit capacity generated by the information generating unit 455.

According to the exemplary embodiment of the present invention, after the information setting unit 465 sets predetermined index generation unit capacity information corresponding to the communication performance, the storage capacity checking unit 470 performs the content receiving unit 480 ( Or the storage unit 485 repeatedly checks the storage capacity of the received multimedia content, and the information checking unit 475 reaches the set index generation unit capacity information of the storage capacity of the multimedia content ( Or above), the information extraction unit 460 extracts configuration information of a part of the multimedia content file stored in the memory unit 415, and the information generation unit 455 based on the extracted configuration information. In the process of generating index information for each capacity of the multimedia content, all of the multimedia content is received through the content receiving unit 480. That the multimedia contents received from the content storage unit (485) is repeated until all stored in the memory unit 415 is preferred.

When all of the multimedia content is received / stored through the content receiving unit 480 and the content storing unit 485, the information generating unit 455 generates final index information for the multimedia content. The content reproducing unit 450 reproduces the multimedia content on the basis of the final index information.

5 is a diagram illustrating real-time reproduction of multimedia content according to the second embodiment of the present invention.

In more detail, in FIG. 5, when the real-time playback program included in the terminal device shown in FIG. 4 plays multimedia content including the content structure shown in FIG. 1, the multimedia content is reproduced in real time (or streaming). Method), a person having ordinary skill in the art to which the present invention pertains may refer to, and / or modify, the real-time reproduction (or streaming method) of the multimedia content with reference to FIG. Various implementation methods for the process may be inferred, but the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

Hereinafter, in FIG. 5, the terminal device shown in FIG. 4 with the real time playback program is referred to as " terminal "

Referring to FIG. 5, the terminal selects a predetermined playback target multimedia content to be provided and played by the terminal among at least one or more multimedia contents provided in the predetermined content providing server 430 (or the messenger terminal 435). (500), and executes the real-time playback program shown in Figure 4 to receive the playback target multimedia content provided by the content providing server 430 (or messenger terminal 435) (505), if the playback target When the header 490 or more of the multimedia content is received (510), the header information of the multimedia content to be played is read to determine whether the multimedia content to be played is included in the real-time playback object (515).

According to an exemplary embodiment of the present invention, the terminal reads file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played, and the multimedia content is played back. By checking whether the multimedia content is being received by the receiver 480 or being stored by the content storage unit 485, it is preferable to confirm whether the multimedia content to be played is included in the real-time playback object.

If a result of reading file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played back, the multimedia content to be played is being received by the content receiver 480 or Or, if the multimedia content being stored by the content storage unit 485, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the terminal determines whether a valid index unit 497 is already included in the multimedia content file based on the header information included in the header unit 490 of the multimedia content to be played. It is preferable to check whether the playback target multimedia content is included in the real time playback target.

If the effective index unit 497 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If the playback target multimedia content is not included in the real time playback target (520), the terminal plays back the playback target multimedia content according to a predefined multimedia content playback procedure (525).

Those skilled in the art to which the present invention pertains may include multimedia content (eg, multimedia content including a file structure capable of streaming playback, or download-completed multimedia content) that the terminal is not included in the real-time playback object. Since you will be familiar with the technical features to reproduce, a detailed description thereof will be omitted for convenience.

On the other hand, if the playback target multimedia content is included in the real-time playback target (520), the terminal checks the communication performance information for the multimedia content being received (530).

If the communication performance information is confirmed (535), the terminal based on the communication performance information on the multimedia content to be reproduced, the predetermined index generation unit capacity for the reproduction (or streaming playback) of the multimedia content Information is set (540).

Thereafter, the terminal determines whether the playback target multimedia content storage capacity received from the content providing server 430 (or the messenger terminal 435) reaches (or exceeds) the set index generation unit capacity. (i = 1) It is checked whether the index information generation condition for each unit capacity is satisfied (550).

If it is determined that the first (i = 1) unit capacity index information generation condition is satisfied (555), the terminal extracts header information and data chunk information of the multimedia content to be played (560).

According to an embodiment of the present invention, the terminal reads the header portion 490 of the multimedia content to extract the header information for the multimedia content, and based on the header information, the first letter code and the data chunk of the data chunk. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 495 based on the size of.

For example, the terminal checks the size and the actual stream data of the first data chunk including the ultra-thin character code (eg, 00db, or 00dc, or 00pc, or 00wb) of the first data chunk, and after the first data chunk. Identify a second data chunk ultra-short character code (e.g., 01db, or 01dc, or 01pc, or 01wb), wherein the ultra-text character code of the second data chunk will be located after the actual stream data of the first data chunk. .

If the terminal checks the first character code and size and actual stream data of the nth (n> 1) data chunk, the first character code of the (n + 1) th data chunk is added after the actual stream data of the nth data chunk. If is not confirmed, if the n-th data chunk is considered to be corrupted, in this case, the terminal shifts the actual stream data of the n-th data chunk by one byte unit, and thus the first head of the (n + 1) data chunk. After retrieving the character code, it is desirable to check the initial head code and size of the (n + 1) data chunk and the actual stream data, whereby corrupted data chunks can be detected.

Subsequently, the terminal generates first (i = 1) index information for each unit capacity for playing the received multimedia content based on the extracted header information and data chunk information (565), and generates the generated first (i = 1) The first (i = 1) multimedia content playing area is decoded and played on the basis of the index information for each unit capacity (570), and it is checked whether all of the multimedia content being played are received (575).

If all of the multimedia content has not been received (580), the terminal reaches the set index generation unit capacity of the playback target multimedia content storage capacity received from the content providing server 430 (or messenger terminal 435). Check whether the second (i = i + 1) index information generation condition for each unit capacity is satisfied (585), and generate index information for each unit capacity according to the verification result to generate the multimedia. The process of playing the content is repeated.

On the other hand, if all of the multimedia content has been received (580), the terminal generates the final index information for the playback target multimedia content (590), and decodes the multimedia content by using the generated final index information (595).

6 is a diagram showing the configuration of a real time playback program function recorded on a recording medium provided in a terminal device for real time playback of multimedia contents according to the third embodiment of the present invention.

In more detail, FIG. 6 does not include a predetermined multimedia content (eg, a file structure capable of streaming playback) in which a download from a predetermined content providing server 630 (or messenger terminal 635) is not completed (or being received). Is provided in a predetermined terminal device (for example, a desktop computer, a notebook computer, a mobile communication terminal, a portable Internet terminal, a wireless LAN terminal, an interactive digital TV, an IPTV, etc.) for real time playback (or streaming playback). In the configuration of the preferred function of the real-time playback program, specifically, the predetermined index generation unit capacity information corresponding to the communication performance for downloading (or receiving) the multimedia content in the real-time playback program periodically checks, and the confirmed communication Based on predetermined index generation unit capacity information corresponding to performance It illustrates an exemplary method of the download is not completed (or receiving) (playback or streaming), the multimedia content to periodically generate a unit dose by the index information for a multimedia content, real-time playback.

Those skilled in the art to which the present invention pertains may refer to and / or modify this drawing 6 to infer various implementation methods for configuring the real-time playback program function for real-time playback of multimedia contents. The present invention includes all the inferred implementation methods, and is not limited to the implementation method shown in FIG.

For example, in FIG. 6, a function configuration unit (content receiving unit 685, content storage unit 690) for downloading predetermined multimedia content that has not been downloaded from a predetermined content providing server 630 (or messenger terminal 635). )) Is illustrated as being included in the real-time playback program, but the present invention is not limited thereto, and the function of downloading the multimedia content is provided in addition to the real-time playback program. Browser program, messenger program, etc.), and the present invention is not limited thereto.

Referring to FIG. 6 according to an embodiment of the present invention, the terminal device may be a predetermined communication network (eg, a Transmission Control Protocol / Internet Protocol (TCP / IP) based wired communication network or a High-Speed Downlink Packet Access (HSDPA) based radio). And a communication processor 620 for connecting a communication channel with a predetermined server (or terminal) through a communication network or an IEEE 802.16x based wireless communication network.

The communication processing unit 620 is connected to a predetermined communication network (eg, TCP / IP-based wired communication network, HSDPA (High-Speed Downlink Packet Access) based wireless communication network, IEEE 802.16x based wireless communication network, etc.) connected to the terminal device. It stores and manages a real-time playback program, and connects a communication channel with a predetermined program providing server 625 for transmitting the real-time playback program to the terminal device, the predetermined provided in the program providing server 625 And downloading the real-time reproducing program recorded on the recording medium of the recording medium provided in the terminal apparatus.

In addition, the communication processing unit 620 is connected to a predetermined communication network (eg, TCP / IP-based wired communication network, HSDPA (High-Speed Downlink Packet Access) -based wireless communication network, IEEE 802.16x-based wireless communication network, etc.) connected to the terminal device. Through a predetermined content providing server 630 (or messenger terminal 635) and the communication channel for downloading (or receiving) multimedia content, characterized in that the content providing server 630 (or messenger terminal 635). And downloading (or receiving) at least one or more multimedia contents stored in a predetermined storage medium provided at)).

Referring to FIG. 6, the terminal device including the real-time playback program includes a screen output unit 600 for outputting video data of the multimedia content, a sound processor 605 for outputting audio data of the multimedia content, And a key input unit 610 for inputting various keys for controlling reproduction of the multimedia contents, and communication for receiving the multimedia contents with a predetermined content providing server 630 (or messenger terminal 635). And a communication processor 620 for connecting and managing a channel, and a memory unit 615 for storing the downloaded multimedia contents, wherein the real time playback program is linked with the function configuration unit. Download from the provision server 630 (or messenger terminal 635) is not complete (or is being received) It is characterized by reproducing a predetermined playback target multimedia content in real time.

In order to reproduce (or stream) the multimedia content downloaded (or received) through the communication processor 620, the screen output unit 600 may decode the video data of the multimedia content decoded by the real-time playback program. Characterized in that it performs the function of the screen output means for outputting.

The sound processor 605 outputs the audio data of the multimedia content decoded by the real time playback program in order to reproduce the multimedia content downloaded (or received) through the communication processor 620 in real time. It characterized in that to perform the function of the sound output means.

When the predetermined multimedia content is received from the predetermined content providing server 630 (or messenger terminal 635), the memory unit 615 stores the received multimedia content. A header portion 693 including predetermined content header information, an image data portion 696 including predetermined video / audio data, and an index portion 699 including index information necessary for playing the multimedia contents. It is preferable to make it.

The header portion 693 of the multimedia content is structure information located after a FOURCC (FOURCC) code called "RIFF" of the multimedia content, and includes predetermined main header information, stream header information, and stream format. At least one header information such as information, stream data, stream name, and the like is preferably further included.

The image data unit 696 may be composed of a plurality of chunks composed of predetermined data units by interleaving predetermined video data and audio data, and the image data (eg, synchronized video data). And audio data) is preferably reproduced in chunk units.

According to an exemplary embodiment of the present invention, the image data unit 696 describes at least one data chunk directly in the image data unit 696 ('movi'), and records at least one data chunk in a predetermined record. It is preferable to include at least one case of grouping in the chunk 'rec'.

The index unit 699 preferably includes a chunk identifier, flag information, chunk offset, and chunk size for reproducing the video data in the chunk unit.

Referring to FIG. 6, the real-time playback program controls the real-time playback program to operate based on a recording medium provided in the terminal device in association with an operating system (or platform) provided in the terminal device. At least one or more functional components constituting the real-time playback program for real-time playback, and / or at least one of the functional components provided in the terminal device through an operating system (or platform) provided in the terminal device. The mainframe unit 640 (Mainfrmae) is provided to perform a function for real-time reproduction of the multimedia content in conjunction with the above components.

The mainframe unit 640 is characterized in that the real-time playback program comprises a program execution code for running on the operating system (or platform) provided in the terminal device, thereby being provided in the terminal device, In response to a predetermined program execution command, the real-time playback program is executed based on the operating system (or platform) provided in the terminal device.

In addition, the mainframe unit 640 controls to interoperate at least one or more functional components provided in the real-time playback program for real-time playback of the multimedia content, thereby real-time playback of the multimedia content At least one functional component constituting the real-time playback program is assigned an instance to the mainframe unit 640 so that the functional components are cross-referenced and / or interworked.

In addition, the mainframe unit 640 may include at least one or more components (eg, a key input unit 610 and / or a screen output unit 600) in which the functional units are provided in the terminal device for real time playback of the multimedia content. And a handle (and / or interrupt) for accessing the same), whereby each of the functional components constituting the real-time playback program is provided with each component provided in the terminal device. Access to perform a unique function defined in each functional component.

In addition, the mainframe unit 640 may include at least one or more components (eg, a key input unit 610 and / or a screen output unit 600) in which the functional units are provided in the terminal device for real time playback of the multimedia content. Obtaining an interrupt for accessing the terminal), and / or accessing an input / output bus corresponding to a peripheral device provided in the terminal device, thereby configuring each function configuring the real-time playback program. The units may access each component provided in the terminal device to perform a unique function defined in each functional component.

Referring to FIG. 6, the real-time playback program is a content receiver configured to receive predetermined multimedia contents from a predetermined content providing server 630 (or a messenger terminal 635) through the communication network in cooperation with the communication processing unit 620. 685, and a content storage unit 690 for storing the received multimedia content in the memory unit 615.

The content receiving unit 685 receives a predetermined reception target multimedia content from a predetermined content providing server 630 (or messenger terminal 635) provided on the communication network in cooperation with the communication processing unit 620. The content receiving unit 685 sequentially receives the image data unit 696 and the index unit 699 from the header unit 693 of the multimedia content.

The content storage unit 690 may receive the multimedia content that the content receiving unit 685 receives from the content providing server 630 (or the messenger terminal 635) in association with the communication processing unit 620. 615, and when the content receiver 685 sequentially receives the multimedia content from the header unit 693 to the image data unit 696 and the index unit 699, the content storage unit. 690 may also sequentially store the received multimedia content from the header unit 693 to the image data unit 696 and the index unit 699.

According to an embodiment of the present invention, the content receiving unit 685 and the content storing unit 690 are included in a predetermined content reproducing means (for example, a content reproducing program provided in the terminal device) included in the terminal device. It is desirable to be.

According to another exemplary embodiment of the present invention, the content receiving unit 685 is provided in a predetermined browser communication means (for example, a browser program provided in the terminal apparatus, not shown) provided in the terminal apparatus, or the terminal apparatus. It is possible to be provided in a predetermined messenger communication means (for example, a messenger program provided in the terminal device, not shown) provided in the.

Referring to FIG. 6, the real-time playback program may include a content playback unit 650 for identifying (or selecting) playback multimedia contents among predetermined multimedia contents stored in (or stored in) the memory unit 615. A real-time playback determining unit 645 for checking whether the multimedia content to be played is a real-time playback object, and if the multimedia content to be played is a real-time playback object, the communication processor 620 (or the content receiver 685); A communication performance checking unit 665 for periodically checking a communication performance of downloading (or receiving) the playback target multimedia content and periodically checking predetermined index generation unit capacity information corresponding to the checked communication performance; Unit capacity information check unit 670, and the storage for repeatedly confirming the storage capacity of the received multimedia content An amount checking unit 675, an information checking unit 680 periodically checking whether the storage capacity of the multimedia content reaches (or exceeding) the identified predetermined index generation unit capacity information, and the result of the checking; When the storage capacity of the reaches (or exceeds) the index generation unit capacity, the information extraction unit for extracting the configuration information of a portion of the multimedia content file stored in the memory unit 615 to generate index information for each predetermined unit capacity ( 660 and an information generation unit 655 for generating index information for each unit capacity of the multimedia content based on the extracted configuration information. The content reproduction unit 650 includes the unit. The multimedia content is reproduced based on index information for each capacity.

The content reproducing unit 650 is a multimedia object to be played among at least one multimedia content stored in (or stored in) the memory unit 615 in association with the screen output unit 600 and the key input unit 610. Confirm (or select), and perform a predetermined initialization operation for playing the confirmed (or selected) predetermined playback target multimedia content. During the initialization operation, the real-time playback determination unit 645 The file information of the multimedia content to be played may be read to determine whether the multimedia content to be played is included in the real time content.

According to an exemplary embodiment of the present invention, the real-time playback determining unit 645 reads the file handle information (or interrupt information of the file or access permission information of the file) of the multimedia content to be played and reproduces the file. By checking whether the target multimedia content is being received by the content receiving unit 685 or the multimedia content being stored by the content storage unit 690, it is preferable to confirm whether the target multimedia content is included in the real-time playback object. Do.

If the read result of the file handle (or interrupt information on the file, or the access authority information of the file) of the multimedia content to be played back, the multimedia content to be played is being received by the content receiver 685 or Or, if the multimedia content is being stored by the content storage unit 690, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the real time playback determining unit 645 may include an index unit 699 valid for the multimedia content file based on the header information included in the header unit 693 of the multimedia content to be played. It is preferable to check whether the content to be reproduced is included in the real-time playback object by checking whether the content is included.

If the effective index unit 699 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time content.

If, as a result of the determination by the real-time playback determination unit 645, the multimedia content to be played is not included in the real-time playback object, the content playback unit 650 according to a predefined multimedia content playback procedure of the playback target multimedia content. Preferably, the content playback unit 650 includes a multimedia structure (eg, a file structure capable of streaming playback) that is not included in the real-time playback object. It will be familiar with the technical features for playing the multimedia content, or the multimedia content that has been downloaded), a detailed description thereof will be omitted for convenience.

On the other hand, if the real-time playback determination unit 645 determines that the multimedia content to be played is included in the real-time playback object, the real-time playback determination unit 645 may check the unit capacity information verification unit 670 for the multimedia content information to be played. ) And a storage capacity checking unit 675.

The communication performance checking unit 665 periodically checks the communication performance (Bytes / sec) corresponding to the download (or reception) of the multimedia content in connection with the communication processing unit 620 (or the content receiving unit 685). And the determined communication performance information to the unit capacity information confirming unit 670.

According to the exemplary embodiment of the present invention, the communication performance checking unit 665 may check the communication performance before the multimedia content is played by the content playing unit 650 or at the start of playing.

The unit capacity information checking unit 670 periodically checks predetermined index generation unit capacity information corresponding to the checked communication performance.

According to an embodiment of the present invention, the unit capacity information confirming unit 670 includes at least one communication performance information and index generation unit capacity information corresponding to each communication performance in association (for example, in a constant form in a program code). And the communication performance corresponding to the download (or reception) of the multimedia content is confirmed, the unit capacity information checking unit 670 provides index generation unit capacity information corresponding to the checked communication performance. It is desirable to confirm.

According to another exemplary embodiment of the present invention, the memory unit 615 stores at least one communication performance information in association with index generation unit capacity information corresponding to each communication performance, and downloads the multimedia content (or Reception), the unit capacity information checking unit 670 may check the index generation unit capacity information corresponding to the checked communication performance in association with the memory unit 615.

The storage capacity checking unit 675 periodically checks the storage capacity of the multimedia content received through the content receiving unit 685, or is stored in the memory unit 615 through the content storage unit 690. Periodically checking the multimedia content storage capacity.

The information checking unit 680 checks whether the checked multimedia content storage capacity reaches (or exceeds) the identified index generation unit capacity. It is preferable to confirm that the condition for generating index information for each capacity of the multimedia content is satisfied.

According to the exemplary embodiment of the present invention, the information confirming unit 680 confirms the i-th index generation unit capacity information by the unit capacity information confirming unit 670, and then confirms it through the storage capacity confirming unit 675. If the i-th storage capacity reaches (or exceeds) the i-th index generation unit capacity, and reaches (or exceeds) the i-th index generation unit capacity, the information checking unit 680 is provided with the multimedia content. It is preferable to confirm that the condition for generating index information for each i-th unit capacity is satisfied.

Alternatively, when the non-reproduction time (or frame) is changed in real time and the index generation unit capacity information is changed in real time, the information checking unit 680 checks the i-th storage capacity checked through the storage checking unit 675. Determining whether the index generation unit capacity determined by the non-playback time (or frame) variation is reached (or exceeded). When the variable index generation unit capacity is reached (or exceeded), the multimedia content is reached. It is preferable to confirm that the condition for generating index information for each unit capacity for satisfies.

According to the exemplary embodiment of the present invention, the information confirming unit 680 determines the non-reproduction time (or frame) in real time after the i-th index generation unit capacity information is confirmed by the unit capacity information confirming unit 670. When the i-th index generation unit capacity information changes in real time, the i-th index generation unit whose i-th storage capacity checked through the storage capacity checking unit 675 is confirmed by the non-reproduction time (or frame) change. When the capacity is reached (or exceeded) and the i-th index generation unit capacity is reached (or exceeded), the information checking unit 680 satisfies the i-th unit capacity index information generation condition for the multimedia content. It is preferable to confirm that it is done.

Alternatively, when the non-reproduction time (or frame) is changed in real time and the index generation unit capacity information is changed in real time, the information checking unit 680 includes predetermined data including the index generation unit capacity information in the multimedia content. And whether the index generation unit capacity information is smaller than a predetermined data chunk size included in the multimedia content. If the index generation unit capacity information is smaller than the chunk size, the condition for generating the index information for each unit capacity for the multimedia content is satisfied. It is desirable to confirm.

According to the exemplary embodiment of the present invention, the information confirming unit 680 determines the non-reproduction time (or frame) in real time after the i-th index generation unit capacity information is confirmed by the unit capacity information confirming unit 670. When the i-th index generation unit capacity information is changed in real time, when the i-th index generation unit capacity information is smaller than a predetermined data chunk size included in the multimedia content, the information checking unit 680 determines the i-th index. Regardless of whether the generation unit capacity is reached (or exceeded), it is preferable to confirm that the i-th unit capacity index information generation condition for the multimedia content is satisfied.

Alternatively, when the playback time corresponding to the current playback frame of the multimedia content reaches (or exceeds) the scheduled playback time (or the number of frames), the information checking unit 680 for each new unit capacity for the multimedia content. It is preferable to confirm that the index information generation condition is satisfied.

According to the exemplary embodiment of the present invention, after the i-th index generation unit capacity information is confirmed by the unit capacity information checking unit 670, the non-playback time (or frame) is changed in real time so that the index generation unit capacity information is changed. When the playback time corresponding to the current playback frame of the multimedia content changes in real time to reach (or exceeds) the scheduled playback time (or the number of frames), the information checking unit 680 determines the i-th unit capacity for the multimedia content. It is preferable to confirm that the index information generation condition is satisfied.

When the information confirming unit 680 confirms that the condition for generating the index information for each unit capacity for the multimedia content is satisfied, the information extracting unit 660 may generate the memory unit to generate index information for each unit capacity. And extracting configuration information of a part of the multimedia content file stored at 615.

According to the exemplary embodiment of the present invention, the information extracting unit 660 reads the header unit 693 of the multimedia content to extract header information of the multimedia content, and starts the data chunk based on the header information. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 696 based on the character code and the size of the data chunk.

For example, the information extracting unit 660 identifies the size and the actual stream data of the first data chunk including the first two-character code of the first data chunk (eg, 00db, or 00dc, or 00pc, or 00wb). Identify a second data chunk ultrathin character code (eg, 01db, or 01dc, or 01pc, or 01wb) after the first data chunk, wherein the ultrathin character code of the second data chunk is the actual stream data of the first data chunk; It will be located next.

If the information extracting unit 660 checks the first character code and size of the nth (n> 1) data chunk and the actual stream data, the (n + 1) th data is added after the actual stream data of the nth data chunk. If the first n-th chunk code of the chunk is not confirmed, and the n-th data chunk is regarded as damaged, in this case, the information extraction unit 660 shifts the actual stream data of the n-th data chunk by one byte unit. After retrieving the ultrathin character code of the (n + 1) th data chunk, it is desirable to check the ultrathin character code and size and actual stream data of the (n + 1) th data chunk, whereby the corrupted data chunk is detected. Can be.

When data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 696 is extracted, the information generator 655 may extract the data chunk information. And generating index information for each unit capacity for playing the multimedia content, wherein the index information for each unit capacity is generated in the form of an AVIINDEXENTRY structure.

Thereafter, the content reproducing unit 650 reproduces the multimedia content to be reproduced based on the index information for each unit capacity generated by the information generating unit 655.

According to the exemplary embodiment of the present invention, the communication performance checking unit 665 checks the communication performance information of the multimedia content in connection with the communication processing unit 620 (or the content receiving unit 685), and the unit capacity checking unit The index generation unit capacity corresponding to the checked communication performance is checked, and the storage capacity checking unit 675 is connected to the content receiving unit 685 (or the content storing unit 690) to determine the received multimedia content. Repeatedly checks the storage capacity, the information checking unit 680 checks whether the storage capacity of the multimedia content reaches (or exceeds) the identified index generation unit capacity information, and the information extracting unit 660 Extracting configuration information of a part of the multimedia content file stored in the memory unit 615, the information generating unit 655 based on the extracted configuration information In the process of generating index information for each unit capacity of the media content, all of the multimedia content is received through the content receiving unit 685 so that all of the multimedia content received through the content storage unit 690 is the memory unit 615. Preferably repeated until

When all the multimedia content is received / stored through the content receiving unit 685 and the content storage unit 690, the information generating unit 655 generates final index information for the multimedia content. The content player 650 plays the multimedia content on the basis of the final index information.

7 is a diagram illustrating real time playback of multimedia content according to a third embodiment of the present invention.

In more detail, in FIG. 7, when the real-time playback program included in the terminal device shown in FIG. 6 plays multimedia content including the content structure shown in FIG. 1, the multimedia content is reproduced in real time (or streaming). Method), a person having ordinary skill in the art to which the present invention pertains may refer to, and / or modify, the real-time reproduction (or streaming method) of the multimedia content with reference to FIG. Various implementation methods for the process may be inferred, but the present invention includes all the implementation methods inferred above, and the technical features are not limited only to the implementation method shown in FIG.

Hereinafter, in FIG. 7, the terminal shown in FIG. 6 having the real time playback program is called " terminal " for convenience.

Referring to FIG. 7, at least one multimedia content included in a predetermined content providing server 630 (or a messenger terminal 635) is selected from a terminal to select a predetermined playback target multimedia content to be provided to the terminal for playback. (700), and executes the real-time playback program shown in Figure 6 to receive the playback target multimedia content provided by the content providing server 630 (or messenger terminal 635) (705), if the playback target If more than the header portion 693 of the multimedia content is received (710), the header information of the playback target multimedia content is read to determine whether the playback target multimedia content is included in the real-time playback target (715).

According to an exemplary embodiment of the present invention, the terminal reads file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played, and the multimedia content is played back. By checking whether the multimedia content is being received by the receiver 685 or being stored by the content storage unit 690, it is preferable to check whether the multimedia content to be played is included in the real-time playback object.

If the read result of the file handle (or interrupt information on the file, or the access authority information of the file) of the multimedia content to be played back, the multimedia content to be played is being received by the content receiver 685 or Or, if the multimedia content is being stored by the content storage unit 690, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the terminal determines whether a valid index unit 699 is already included in the multimedia content file based on the header information included in the header unit 693 of the multimedia content to be played. It is preferable to check whether the playback target multimedia content is included in the real time playback target.

If the effective index unit 699 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time content.

If the playback target multimedia contents are not included in the real time playback target (720), the terminal plays back the playback target multimedia contents according to a predefined multimedia content playback procedure (725).

Those skilled in the art to which the present invention pertains may include multimedia content (eg, multimedia content including a file structure capable of streaming playback, or download-completed multimedia content) that the terminal is not included in the real-time playback object. Since you will be familiar with the technical features to reproduce, a detailed description thereof will be omitted for convenience.

On the other hand, if the multimedia content to be played is included in the real-time playback object (720), the terminal checks the first (i = 1) communication performance information for the multimedia content being received (730).

If the first (i = 1) communication performance information is confirmed (735), the terminal indexes a first (i = 1) index based on the first (i = 1) communication performance information for the multimedia content to be played. The generation unit capacity information is checked (740).

If the first (i = 1) index generation unit capacity information is confirmed (745), the terminal is configured to provide information on the playback target multimedia content received from the content providing server 630 (or the messenger terminal 635). 1 (i = 1) satisfies the condition for generating index information for each of the first (i = 1) units by checking whether the storage capacity of the multimedia content reaches (or exceeds) the first (i = 1) index generation unit capacity Check (750).

If it is determined that the first (i = 1) unit capacity index information generation condition is satisfied (755), the terminal extracts header information and data chunk information of the multimedia content to be played (760).

According to an embodiment of the present invention, the terminal reads the header portion 693 of the multimedia content to extract header information for the multimedia content, and based on the header information, the ultra-thin character code and the data chunk of the data chunk. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 696 based on the size of.

For example, the terminal checks the size and the actual stream data of the first data chunk including the ultra-thin character code (eg, 00db, or 00dc, or 00pc, or 00wb) of the first data chunk, and after the first data chunk. Identify a second data chunk ultra-short character code (e.g., 01db, or 01dc, or 01pc, or 01wb), wherein the ultra-text character code of the second data chunk will be located after the actual stream data of the first data chunk. .

If the terminal checks the first character code and size and actual stream data of the nth (n> 1) data chunk, the first character code of the (n + 1) th data chunk is added after the actual stream data of the nth data chunk. If is not confirmed, if the n-th data chunk is considered to be corrupted, in this case, the terminal shifts the actual stream data of the n-th data chunk by one byte unit, and thus the first head of the (n + 1) data chunk. After retrieving the character code, it is desirable to check the initial head code and size of the (n + 1) data chunk and the actual stream data, whereby corrupted data chunks can be detected.

Thereafter, the terminal generates first index information for unit capacity (i = 1) for playing the received multimedia content based on the extracted header information and data chunk information (765), and generates the generated first information. (i = 1) The first (i = 1) multimedia content playing area is decoded and played based on the index information for each unit capacity (770), and it is checked whether all the multimedia content being played are received (775).

If all of the multimedia content has not been received (780), the terminal checks the second (i = i + 1) communication performance information on the received multimedia content (785), based on the confirmed communication performance information Confirm the predetermined index generation unit capacity information, check the index information generation condition for each unit capacity based on the index generation unit capacity information, and generate the index information for each unit capacity according to the verification result to generate the multimedia content. Repeat the process to play.

On the other hand, if all the multimedia content has been received (780), the terminal generates the final index information for the playback target multimedia content (790), and decodes the multimedia content through the generated final index information to play (795).

8 is a diagram showing the configuration of a real-time playback program function recorded on a recording medium provided in a terminal device for real-time playback of multimedia contents according to a fourth embodiment of the present invention.

In more detail, FIG. 8 does not include a predetermined multimedia content (eg, a file structure capable of streaming playback) that is not completed (or being received) from a predetermined content providing server 830 (or messenger terminal 835). To a predetermined terminal device (for example, a desktop computer, a notebook computer, a mobile communication terminal, a mobile Internet terminal, a wireless LAN terminal, a two-way digital TV, and an IPTV) for real time playback (or streaming playback). The present invention relates to a preferred function configuration of a real-time playback program. Specifically, when a predetermined multimedia content is being downloaded (or received) from the real-time playback program, communication performance of the predetermined multimedia content being downloaded (or received) from the program is displayed. Check periodically, and correspond to the checked communication performance. Periodically check the index generation unit capacity information of the unit, and for each unit capacity for the predetermined multimedia content for which the download is not completed (or being received) based on the predetermined index generation unit capacity information corresponding to the checked communication performance. A method of generating index information periodically to play the multimedia content in real time (or in a streaming manner) is shown.

For example, in FIG. 8, a function of downloading predetermined multimedia content from which a download is not completed from a predetermined content providing server 830 (or messenger terminal 835) is illustrated as being provided in the real-time playback program. Accordingly, the present invention is not limited thereto, and the function of downloading the multimedia contents may be provided in another application program (for example, a browser program or a messenger program provided in the terminal apparatus) in addition to the real time playback program. The present invention is not limited.

Referring to FIG. 8 according to an embodiment of the present invention, the terminal apparatus may be a predetermined communication network (eg, a Transmission Control Protocol / Internet Protocol (TCP / IP) based wired communication network or a High-Speed Downlink Packet Access (HSDPA) based radio). And a communication processor 820 for connecting a communication channel with a predetermined server (or terminal) through a communication network or an IEEE 802.16x based wireless communication network.

The communication processing unit 820 is connected to a predetermined communication network (eg, a TCP / IP-based wired communication network, a HSDPA-based wireless communication network, an IEEE 802.16x-based wireless communication network, etc.) to which the terminal device is connected. It stores and manages a real-time playback program, and connects a communication channel with a predetermined program providing server 825 for transmitting the real-time playback program to the terminal device, the predetermined provided in the program providing server 825 And downloading the real-time reproducing program recorded on the recording medium of the recording medium provided in the terminal apparatus.

In addition, the communication processing unit 820 is connected to a predetermined communication network (for example, TCP / IP-based wired communication network, HSDPA (High-Speed Downlink Packet Access) -based wireless communication network, IEEE 802.16x-based wireless communication network, etc.) connected to the terminal device. Through a predetermined content providing server 830 (or messenger terminal 835) and the communication channel for downloading (or receiving) multimedia content, characterized in that the content providing server 830 (or messenger terminal 835). And downloading (or receiving) at least one or more multimedia contents stored in a predetermined storage medium provided at)).

Referring to FIG. 8, the terminal device including the real-time playback program includes a screen output unit 800 for outputting video data of the multimedia content, a sound processor 805 for outputting audio data of the multimedia content, And a key input unit 810 for inputting various keys for controlling reproduction of the multimedia contents, and communication for receiving the multimedia contents with a predetermined content providing server 830 (or messenger terminal 835). And a communication processor 820 for connecting and managing channels, and a memory unit 815 for storing the downloaded multimedia contents, wherein the real-time playback program is linked with the function configuration unit. Download from the provision server 830 (or messenger terminal 835) is not complete (or is being received) It is characterized by reproducing a predetermined playback target multimedia content in real time.

In order to reproduce (or play in streaming) multimedia content downloaded (or received) through the communication processor 820, the screen output unit 800 decodes the video data of the multimedia content decoded by the real-time play program. Characterized in that it performs the function of the screen output means for outputting.

The sound processor 805 outputs audio data of the multimedia content decoded by a real-time playback program in order to play (or stream) the multimedia content downloaded (or received) through the communication processor 820. It characterized in that to perform the function of the sound output means.

When the predetermined multimedia content is received from a predetermined content providing server 830 (or messenger terminal 835), the memory unit 815 stores the received multimedia content. A header unit 893 including predetermined content header information, an image data unit 896 including predetermined video / audio data, and an index unit 899 including index information necessary for playing the multimedia content. It is preferable to make it.

The header portion 893 of the multimedia content is structure information located after a FOURCC (FOURCC) code called "RIFF" of the multimedia content, and includes predetermined main header information, stream header information, and stream format. At least one header information such as information, stream data, stream name, and the like is preferably further included.

The image data unit 896 may be composed of a plurality of chunks composed of predetermined data units by interleaving predetermined video data and audio data, and the image data (eg, synchronized video data). And audio data) is preferably reproduced in chunk units.

According to an embodiment of the present invention, the image data unit 896 directly describes at least one or more data chunks in the image data unit 896 ('movi'), and records at least one or more data chunks in a predetermined record. It is preferable to include at least one case of grouping in the chunk 'rec'.

The index unit 899 preferably includes a chunk identifier, flag information, chunk offset, and chunk size for reproducing the video data in the chunk unit.

Referring to FIG. 8, the real time playing program controls the real time playing program to operate based on a recording medium provided in the terminal device in connection with an operating system (or a platform) provided in the terminal device. At least one or more functional components constituting the real-time playback program for real-time playback, and / or at least one of the functional components provided in the terminal device through an operating system (or platform) provided in the terminal device. It is characterized in that the main frame unit 840 (Mainfrmae) is provided to perform a function for real-time playback of the multimedia content in conjunction with the above components.

The main frame unit 840 is characterized in that the real-time playback program comprises a program execution code for running on the operating system (or platform) provided in the terminal device, thereby being provided in the terminal device, In response to a predetermined program execution command, the real-time playback program is executed based on the operating system (or platform) provided in the terminal device.

In addition, the mainframe unit 840 is characterized in that the control to interoperate at least one or more functional components provided in the real-time playback program for real-time playback of the multimedia content, thereby real-time playback of the multimedia content At least one functional component constituting the real-time playback program is assigned an instance to the mainframe unit 840 so that the functional components are cross-referenced and / or interworked.

In addition, the mainframe unit 840 may include at least one or more components (eg, a key input unit 810 and / or a screen output unit 800) that the functional units are provided in the terminal device for real time playback of the multimedia content. And a handle (and / or interrupt) for accessing the same), whereby each of the functional components constituting the real-time playback program is provided with each component provided in the terminal device. Access to perform a unique function defined in each functional component.

In addition, the mainframe unit 840 may include at least one or more components (eg, a key input unit 810 and / or a screen output unit 800) that the functional units are provided in the terminal device for real time playback of the multimedia content. Obtaining an interrupt for accessing the terminal), and / or accessing an input / output bus corresponding to a peripheral device provided in the terminal device, thereby configuring each function configuring the real-time playback program. The units may access each component provided in the terminal device to perform a unique function defined in each functional component.

Referring to FIG. 8, the real time playback program is a content receiver configured to receive predetermined multimedia contents from a predetermined content providing server 830 (or a messenger terminal 835) through the communication network in cooperation with the communication processing unit 820. 885 and a content storage unit 890 for storing the received multimedia content in the memory unit 815.

The content receiving unit 885 receives a predetermined reception target multimedia content from a predetermined content providing server 830 (or a messenger terminal 835) provided on the communication network in cooperation with the communication processing unit 820. The content receiving unit 885 receives the image data unit 896 and the index unit 899 sequentially from the header unit 893 of the multimedia content.

The content storage unit 890 receives the multimedia content that the content receiving unit 885 receives from the content providing server 830 (or the messenger terminal 835) in association with the communication processing unit 820. 815, and when the content receiving unit 885 receives the multimedia content sequentially from the header unit 883 to the image data unit 896 and the index unit 899, the content storage unit. In operation 890, the received multimedia content may be sequentially stored from the header unit 833 to the image data unit 896 and the index unit 899.

According to an embodiment of the present invention, the content receiving unit 885 and the content storing unit 890 are included in a predetermined content reproducing means (for example, a content reproducing program provided in the terminal apparatus) included in the terminal apparatus. It is desirable to be.

According to another exemplary embodiment of the present invention, the content receiving unit 885 may be provided in a predetermined browser communication means (for example, a browser program provided in the terminal apparatus, not shown) provided in the terminal apparatus, or the terminal apparatus. May be provided in a predetermined messenger communication means (for example, a messenger program provided in the terminal apparatus, not illustrated) provided in the terminal apparatus. In this case, the content receiving unit 885 includes predetermined unit capacity information provided in the terminal apparatus. It is preferable to be provided to interlock with the identification unit 870.

Referring to FIG. 8, the real-time playback program includes a content playback unit 850 for playing back predetermined multimedia content stored in (or stored in) the memory unit 815, and the playback target multimedia content for real-time playback. A real-time playback determining unit 845 for checking whether the multimedia content is to be reproduced in real time, and an information extraction unit 860 for extracting configuration information of a part of the multimedia content file stored in the memory unit 815 to date. And an information generation unit 855 for generating index information for each unit capacity of the multimedia content based on the extracted configuration information. The content playback unit 850 includes the unit capacity. The multimedia content is reproduced based on the star index information.

The content reproducing unit 850 checks a multimedia content to be reproduced from at least one multimedia content stored in (or stored in) the memory unit 815 in association with the screen output unit 800 and the key input unit 810. (Or select) and perform a predetermined initialization operation for playing the checked (or selected) predetermined playback target multimedia content, wherein the real time playback determination unit 845 performs the playback during the initialization operation. The file information of the target multimedia content may be read to determine whether the playback target multimedia content is included in the real-time playback target.

According to an exemplary embodiment of the present invention, the real time playback determining unit 845 reads file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played back, and plays back the read data. By checking whether the target multimedia content is being received by the content receiving unit 885 or the multimedia content being stored by the content storing unit 890, it is preferable to check whether the target multimedia content is included in the real-time playback target. Do.

If a result of reading file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played, the multimedia content to be played is being received by the content receiving unit 885, or Or, if the multimedia content being stored by the content storage unit 890, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the real time playback determining unit 845 has an index unit 899 which is valid for the multimedia content file based on the header information included in the header unit 893 of the multimedia content to be played. It is preferable to check whether the content to be reproduced is included in the real-time playback object by checking whether the content is included.

If a valid index unit 899 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If the result of the determination of the real-time playback determining unit 845 indicates that the multimedia content to be played is not included in the real-time playback object, the content playback unit 850 processes the multimedia content to be played according to a predefined multimedia content playback procedure. Preferably, the content playback unit 850 includes multimedia content (eg, a file structure capable of streaming playback) that is not included in the real-time playback object. It will be familiar with the technical features for playing the multimedia content, or the multimedia content that has been downloaded), a detailed description thereof will be omitted for convenience.

On the other hand, if the result of the determination by the real time playback determining unit 845 indicates that the multimedia content to be played is included in the real time playback object, the real time playback determination unit 845 may transmit the multimedia content information to the playback object with the information extraction unit 860. The unit capacity information checking unit 870 is provided.

The information extracting unit 860 extracts configuration information of a part of the multimedia content file stored in the memory unit 815 to generate index information for a predetermined unit capacity.

According to an exemplary embodiment of the present invention, the information extracting unit 860 reads the header unit 893 of the multimedia content to extract header information of the multimedia content, and the head of the data chunk is based on the header information. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 896 based on the character code and the size of the data chunk.

For example, the information extracting unit 860 checks the size and the actual stream data of the first data chunk including the first two-character code of the first data chunk (eg, 00db, or 00dc, or 00pc, or 00wb). Identify a second data chunk ultrathin character code (eg, 01db, or 01dc, or 01pc, or 01wb) after the first data chunk, wherein the ultrathin character code of the second data chunk is the actual stream data of the first data chunk; It will be located next.

If the information extracting unit 860 checks the first-order character code and size of the nth (n> 1) data chunk and the actual stream data, the (n + 1) th data is added after the actual stream data of the nth data chunk. If the first n-th character code of the chunk is not confirmed, if the n-th data chunk is regarded as damaged, in this case, the information extractor 860 shifts the actual stream data of the n-th data chunk by one byte unit. After retrieving the ultrathin character code of the (n + 1) th data chunk, it is desirable to check the ultrathin character code and size and actual stream data of the (n + 1) th data chunk, whereby the corrupted data chunk is detected. Can be.

When data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 896 is extracted, the information generator 855 may extract the data chunk information. And generating index information for each unit capacity for playing the multimedia content, wherein the index information for each unit capacity is generated in the form of an AVIINDEXENTRY structure.

Thereafter, the content reproduction unit 850 plays the multimedia content to be played based on the index information for each unit capacity generated by the information generation unit 855.

Referring to FIG. 8, if it is determined that the playback target multimedia content is a real-time playback target, the real-time playback program downloads the playback target multimedia contents in cooperation with the communication processing unit 820 (or the content receiving unit 885). Or a communication performance confirmation unit periodically checking the communication performance to be received), a unit capacity information confirmation unit 870 periodically checking the predetermined index generation unit capacity information corresponding to the confirmed communication performance, and the received A storage checking unit repeatedly checking a storage capacity of the multimedia content, and an information checking unit 880 periodically checking whether the storage capacity of the multimedia content reaches (or exceeds) the identified predetermined index generation unit capacity information. And the storage capacity of the multimedia content is equal to the index generation unit capacity. When the month (or exceeds), the information extraction unit 860 for extracting the configuration information of a part of the multimedia content file stored in the memory unit 815 to generate index information for a predetermined unit capacity, and the extracted configuration information And an information generation unit 855 for generating index information for each of the capacity of the multimedia content, based on the index information for each capacity of the multimedia content. It characterized in that to play.

The content reproducing unit 850 checks a multimedia content to be reproduced from at least one multimedia content stored in (or stored in) the memory unit 815 in association with the screen output unit 800 and the key input unit 810. (Or select) and perform a predetermined initialization operation for playing the checked (or selected) predetermined playback target multimedia content, wherein the real time playback determination unit 845 performs the playback during the initialization operation. The file information of the target multimedia content may be read to determine whether the playback target multimedia content is included in the real-time playback target.

According to an exemplary embodiment of the present invention, the real time playback determining unit 845 reads file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played back, and plays back the read data. By checking whether the target multimedia content is being received by the content receiving unit 885 or the multimedia content being stored by the content storing unit 890, it is preferable to check whether the target multimedia content is included in the real-time playback target. Do.

If a result of reading file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played, the multimedia content to be played is being received by the content receiving unit 885, or Or, if the multimedia content being stored by the content storage unit 890, the multimedia content is preferably included in the real-time playback target.

According to another exemplary embodiment of the present invention, the real time playback determining unit 845 has an index unit 899 which is valid for the multimedia content file based on the header information included in the header unit 893 of the multimedia content to be played. It is preferable to check whether the content to be reproduced is included in the real-time playback object by checking whether the content is included.

If a valid index unit 899 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If the result of the determination of the real-time playback determining unit 845 indicates that the multimedia content to be played is not included in the real-time playback object, the content playback unit 850 processes the multimedia content to be played according to a predefined multimedia content playback procedure. Preferably, the content playback unit 850 includes multimedia content (eg, a file structure capable of streaming playback) that is not included in the real-time playback object. It will be familiar with the technical features for playing the multimedia content, or the multimedia content that has been downloaded), a detailed description thereof will be omitted for convenience.

On the other hand, if the real-time playback determination unit 845 determines that the playback target multimedia content is included in the real-time playback target, the real-time playback determination unit 845 checks the playback target multimedia content information in the unit capacity information verification unit 870. ) And the storage capacity checking unit 875.

The communication performance confirmation unit periodically checks the communication performance (Bytes / sec) corresponding to the download (or reception) of the multimedia content in connection with the communication processing unit 820 (or the content receiving unit 885). The unit capacity information checking unit 870 provides the checked communication performance information.

The unit capacity information confirming unit 870 periodically checks predetermined index generation unit capacity information corresponding to the checked communication performance.

According to an exemplary embodiment of the present invention, the unit capacity information checking unit 870 includes at least one communication performance information and index generation unit capacity information corresponding to each communication performance (eg, in a constant form in a program code). And the communication performance corresponding to the download (or reception) of the multimedia content is confirmed, the unit capacity information checking unit 870 checks the index generation unit capacity information corresponding to the checked communication performance. It is desirable to.

According to another exemplary embodiment of the present invention, the memory unit 815 stores at least one communication performance information and index generation unit capacity information corresponding to each communication performance in association with each other, and downloads the multimedia content (or Reception), the unit capacity information checking unit 870 preferably checks the index generation unit capacity information corresponding to the checked communication performance in association with the memory unit 815.

When the communication performance information is confirmed, the unit capacity confirming unit is a predetermined unit for generating index information for each predetermined unit capacity for real (frame number) playback of the multimedia content without interruption based on the confirmed communication performance information. It is characterized by checking the index information for each capacity.

According to the exemplary embodiment of the present invention, the unit capacity information checking unit 870 checks the reproduction schedule (frame number) information of the playback target multimedia content received so far based on the header information of the playback target multimedia content. desirable.

For example, the unit capacity information checking unit 870 may include frame rate information (dwMicroSecPerFrame) and data rate information (dwMaxBytesPerSec) included in header information of the multimedia content to be played, and at least one data chunk included in the multimedia content to be played. It is preferable to check information on the reproduction schedule (frame number) of the multimedia content to be played, which has been received so far, using at least one piece of information and at least one receiving capacity information.

Thereafter, the unit capacity information checking unit 870 may receive the playback target multimedia content before all the playback target multimedia contents received so far are multiplied by the communication performance information and the playback schedule (frame number). Generates (i + 1) th maximum reception capacity information.

라고 하고, i번째 재생 예정재생 예정(프레임수)(프레임수)를

라고 하면, 상기 (i+1)번째 최대 수신용량 정보를

는 다음과 같이 정의될 수 있다.Here, the i th communication performance information

The i-th playback schedule (frames) (frames)

In this case, the (i + 1) th maximum receiving capacity information

May be defined as follows.

If the content receiving unit 885 keeps receiving the remaining portion of the multimedia content to be reproduced beyond the communication performance in playing the multimedia content received so far, the (i + 1) th maximum The reception capacity information may be used as index information for each (i + 1) th unit capacity as it is.

를 곱한 형태로 이루어질 것이다.On the other hand, since the actual communication performance will not maintain more than the confirmed communication performance information while receiving the rest of the multimedia content, the (i + 1) th index information for each unit capacity is received in the (i + 1) th maximum. Predetermined proportional constant to capacity information

Will be multiplied by

라고 한다면, 상기 비례상수

는 다음과 같이 정의될 수 있다.According to an embodiment of the present invention, the lowest communication performance while receiving the i-th multimedia content is

If it is, the proportional constant

May be defined as follows.

이외에 다양한 비례상수를 유추할 수 있을 것이나, 본 발명은 상기 유추되는 모든 실시 방법을 포함하여 이루어지는 것을 특징으로 하며, 특정 비례상수에 의해 한정되지 아니한다.Those skilled in the art to which the present invention pertains, the proportional constant defined above

In addition to various proportional constants can be inferred, the present invention is characterized by including all the implementation method inferred above, and is not limited by a specific proportional constant.

In addition, while playing the multimedia content, the multimedia content may be sequentially played, but some playback time (or frames) may be skipped at the request of the multimedia content viewer.

는 다음과 같이 정의될 수 있을 것이다.Here, if the non-play time (or frame) skipped while playing the i-th multimedia content is referred to as index information for each (i + 1) -th unit capacity,

Could be defined as

는 "

"와 같은 유효 범위를 가지며, 상기 i번째 멀티미디어 컨텐츠를 재생하는 동안 변동되는 것을 특징으로 하며, 이에 의해 상기 단위용량 정보 확인부(870)는 상기 (i+1)번째 단위용량 별 인덱스 정보를 확인한 후, 상기 비재생 시간(또는 프레임)

가 변동될 때마다 상기 (i+1)번째 단위용량 별 인덱스 정보를 재확인하는 것이 바람직하다.In particular, the non-play time (or frame)

"

It has an effective range such as "," and characterized in that it changes during the playback of the i-th multimedia content, whereby the unit capacity information confirming unit 870 checks the index information for each (i + 1) th unit capacity After that, the non-play time (or frame)

Whenever is changed, it is preferable to reconfirm the index information for each (i + 1) th unit capacity.

라고 하면, 상기 인덱스 생성 단위용량 정보는 다음과 같은 조건을 만족하도록 확인되는 것이 바람직하다.In the unit capacity information confirming unit 870 confirming the index information for each (i + 1) th unit capacity, the unit capacity information checking unit 870 checks the total capacity of the multimedia content to be played.

In this case, the index generation unit capacity information is preferably checked to satisfy the following conditions.

The storage capacity checking unit 875 periodically checks the storage capacity of the multimedia content received through the content receiving unit 885, or is stored in the memory unit 815 through the content storage unit 890. Periodically checking the multimedia content storage capacity.

The information checking unit 880 checks whether the checked multimedia content storage capacity reaches (or exceeds) the identified index generation unit capacity. When the index generation unit capacity reaches (or exceeds), It is preferable to confirm that the condition for generating index information for each capacity of the multimedia content is satisfied.

According to the exemplary embodiment of the present invention, the information confirming unit 880 confirms the i-th index generation unit capacity information by the unit capacity information confirming unit 870 and then confirms it through the storage capacity confirming unit 875. The i-th storage capacity reaches (or exceeds) the i-th index generation unit capacity, and when the i-th index generation unit capacity is reached (or exceeded), the information checking unit 880 is connected to the multimedia content. It is preferable to confirm that the index information generation condition for each (i + 1) th unit capacity is satisfied.

Alternatively, when the non-reproduction time (or frame) is changed in real time and the index generation unit capacity information is changed in real time, the information checking unit 880 stores the i th storage checked through the storage capacity checking unit 875. Determining whether the capacity reaches (or exceeds) the index generation unit capacity identified by the non-playback time (or frame) variation, and when the variable index generation unit capacity is reached (or exceeds), the multimedia It is preferable to confirm that the conditions for generating index information for each unit capacity for the content are satisfied.

According to the exemplary embodiment of the present invention, the information checking unit 880 determines the non-reproduction time (or frame) in real time after the i-th index generation unit capacity information is confirmed by the unit capacity information checking unit 870. When the i-th index generation unit capacity information changes in real time, the i-th index generation unit whose i-th storage capacity checked through the storage capacity checking unit 875 is confirmed by the non-playback time (or frame) change When the capacity is reached (or exceeded) and the i-th index generation unit capacity is reached (or exceeded), the information checking unit 880 provides index information for each (i + 1) -th unit capacity for the multimedia content. It is preferable to confirm that the production conditions are satisfied.

Alternatively, when the non-play time (or frame) changes in real time and the index generation unit capacity information is changed in real time, the information checking unit 880 includes predetermined data including the index generation unit capacity information in the multimedia content. Determining whether the chunk size is smaller than the chunk size, and when the index generation unit capacity information is smaller than a predetermined data chunk size included in the multimedia content, the condition for generating the index information for each capacity of the multimedia content is satisfied. It is preferable to confirm that it is.

According to the exemplary embodiment of the present invention, the information checking unit 880 determines the non-reproduction time (or frame) in real time after the i-th index generation unit capacity information is confirmed by the unit capacity information checking unit 870. When the i-th index generation unit capacity information is changed in real time, when the i-th index generation unit capacity information is smaller than a predetermined data chunk size included in the multimedia content, the information checking unit 880 determines the i-th index. Regardless of whether the generation unit capacity is reached (or exceeded), it is preferable to confirm that the condition for generating index information for each (i + 1) th unit capacity for the multimedia content is satisfied.

Alternatively, when the playback time corresponding to the current playback frame of the multimedia content reaches (or exceeds) the scheduled playback time (or the number of frames), the information checking unit 880 for each new unit capacity for the multimedia content. It is preferable to confirm that the index information generation condition is satisfied.

According to the exemplary embodiment of the present invention, after the i-th index generation unit capacity information is confirmed by the unit capacity information confirming unit 870, the non-playback time (or frame) is changed in real time so that the index generation unit capacity information is obtained. Is changed in real time and the playback time corresponding to the current playback frame of the multimedia content reaches (or exceeds) the scheduled playback time (or the number of frames), the information checking unit 880 (i + It is preferable to confirm that 1) the index information generation condition for each unit capacity is satisfied.

When the information confirming unit 880 confirms that the new index information for each unit capacity for the multimedia content generation condition is satisfied, the information extracting unit 860 generates the memory to generate index information for each unit capacity. And extracting configuration information of a part of the multimedia content file stored in the unit 815.

According to an exemplary embodiment of the present invention, the information extracting unit 860 reads the header unit 893 of the multimedia content to extract header information of the multimedia content, and the head of the data chunk is based on the header information. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 896 based on the character code and the size of the data chunk.

For example, the information extraction unit 860 identifies the size and the actual stream data of the first data chunk including the ultra-thin character code of the first data chunk (eg, 00db, or 00dc, or 00pc, or 00wb), Identify a second data chunk ultrathin character code (eg, 01db, or 01dc, or 01pc, or 01wb) after the first data chunk, wherein the ultrathin character code of the second data chunk is the actual stream of the first data chunk; It will be located after the data.

If the information extracting unit 860 checks the first-order character code and size of the nth (n> 1) data chunk and the actual stream data, the (n + 1) th data is added after the actual stream data of the nth data chunk. If the first n-th character code of the chunk is not confirmed, if the n-th data chunk is regarded as damaged, in this case, the information extractor 860 shifts the actual stream data of the n-th data chunk by one byte unit. After retrieving the ultrathin character code of the (n + 1) th data chunk, it is desirable to check the ultrathin character code and size and actual stream data of the (n + 1) th data chunk, whereby the corrupted data chunk is detected. Can be.

When data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 896 is extracted, the information generator 855 may extract the data chunk information. And generating index information for each unit capacity for playing the multimedia content, wherein the index information for each unit capacity is generated in the form of an AVIINDEXENTRY structure.

Thereafter, the content reproduction unit 850 plays the multimedia content to be played based on the index information for each unit capacity generated by the information generation unit 855.

According to an embodiment of the present invention, the communication performance confirmation unit confirms the communication performance information of the multimedia content in association with the communication processing unit 820 (or the content receiving unit 885), the unit capacity confirmation unit the confirmed communication Check the index generation unit capacity corresponding to the performance, and the storage capacity checking unit 875 is repeatedly associated with the content receiving unit 885 (or content storage unit 890) the storage capacity of the received multimedia content. The information confirming unit 880 confirms whether or not the storage capacity of the multimedia content reaches (or exceeds) the identified index generation unit capacity information, and the information extracting unit 860 stores the memory unit 815. Extracts configuration information of a part of the multimedia content file stored in the multimedia information file, and the information generating unit 855 extracts the multimedia information based on the extracted configuration information. In the process of generating index information for each capacity of content, the multimedia content is all received through the content receiving unit 885 so that all the multimedia content received through the content storage unit 890 is the memory unit 815. It is preferably repeated until stored in the.

When all of the multimedia content is received / stored through the content receiving unit 885 and the content storing unit 890, the information generating unit 855 generates final index information for the multimedia content. The content player 850 plays the multimedia content based on the final index information.

9 is a diagram illustrating real-time reproduction of multimedia content according to a fourth embodiment of the present invention.

In more detail, in FIG. 9, when the real-time playback program included in the terminal device shown in FIG. 8 plays multimedia content including the content structure shown in FIG. 1, the multimedia content is reproduced in real time (or streaming). Method of the present invention, a person having ordinary knowledge in the technical field to which the present invention pertains may refer to and / or modify the present invention to perform real-time playback (or streaming method) of the multimedia content. Various implementation methods for the process may be inferred, but the present invention includes all the implementation methods inferred above, and the technical features are not limited to the implementation method shown in FIG.

Hereinafter, in FIG. 9, the terminal shown in FIG. 8 having the real time playback program is referred to as " terminal "

Referring to FIG. 9, the terminal executes the real-time playback program illustrated in FIG. 8 and selects a predetermined playback target multimedia content from at least one multimedia content stored in (or stored in) the memory unit 815. When processing to be reproduced through the screen output means and the sound processing means provided in the terminal (900), the terminal reads the file information of the multimedia object to be reproduced whether the multimedia object to be reproduced in the real-time reproduction object (for example In operation 905, the multimedia content to be played is checked from the predetermined content providing server 830 (or the messenger terminal 835).

According to an exemplary embodiment of the present invention, the terminal reads file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played and the multimedia content is played back. By checking whether the multimedia content is being received by the receiving unit 885 or being stored by the content storage unit 890, it is preferable to confirm whether the multimedia content to be played is included in the real-time playback object.

If a result of reading file handle information (or interrupt information on a file or access permission information of a file) of the multimedia content to be played, the multimedia content to be played is being received by the content receiving unit 885, or Or, if the multimedia content is being stored by the content storage unit 890, the multimedia content is preferably included in a real-time playback object.

According to another exemplary embodiment of the present invention, the terminal determines whether a valid index unit 899 is included in the multimedia content file based on the header information included in the header unit 833 of the multimedia content to be played. It is preferable to check whether the playback target multimedia content is included in the real time playback target.

If a valid index unit 899 is not included in the multimedia content to be played, the multimedia content is preferably included in the real time playback object.

If the reproduction target multimedia content is not included in the real time reproduction target (910), the terminal reproduces the reproduction target multimedia content according to a predefined multimedia content reproduction procedure (915).

Those skilled in the art to which the present invention pertains may include multimedia content (eg, multimedia content including a file structure capable of streaming playback, or multimedia) that is not included in the real-time playback object. It will be familiar with the technical features of playing the content), so a detailed description thereof will be omitted for convenience.

On the other hand, if the playback target multimedia content is included in the real-time playback target (910), the terminal and the header information for the playback target multimedia content received so far from the content providing server 830 (or messenger terminal 835); The data chunk information is extracted (920).

According to an exemplary embodiment of the present invention, the terminal reads the header portion 893 of the multimedia content to extract header information for the multimedia content, and based on the header information, the first character code and the data chunk of the data chunk are extracted. It is preferable to extract data chunk information including at least one of a format, a position, and a size of at least one data chunk included in the image data unit 896 based on the size of.

For example, the terminal checks the size and the actual stream data of the first data chunk including the ultra-thin character code (eg, 00db, or 00dc, or 00pc, or 00wb) of the first data chunk, and after the first data chunk. Identify a second data chunk ultra-short character code (e.g., 01db, or 01dc, or 01pc, or 01wb), wherein the ultra-text character code of the second data chunk will be located after the actual stream data of the first data chunk. .

If the terminal checks the first character code and size and actual stream data of the nth (n> 1) data chunk, the first character code of the (n + 1) th data chunk is added after the actual stream data of the nth data chunk. If is not confirmed, if the n-th data chunk is considered to be corrupted, in this case, the terminal shifts the actual stream data of the n-th data chunk by one byte unit, and thus the first head of the (n + 1) data chunk. After retrieving the character code, it is desirable to check the initial head code and size of the (n + 1) data chunk and the actual stream data, whereby corrupted data chunks can be detected.

Thereafter, the terminal generates first index information for each unit capacity (925) for playing the multimedia content received so far based on the extracted header information and the data chunk information (925), and generates the generated second information. The first (i = 1) multimedia content reproduction region is decoded and reproduced based on the index information for each unit capacity (i = 1) (930).

Thereafter, the terminal checks first (i = 1) communication performance information on the first (i = 1) multimedia content area of the received multimedia content (935).

If the first (i = 1) communication performance information is confirmed (940), the terminal is scheduled to play (or the number of frames) of the playback target multimedia content received so far based on the header information of the playback target multimedia content; Check the information (945).

According to an embodiment of the present invention, the terminal may include frame rate information (dwMicroSecPerFrame) and data rate information (dwMaxBytesPerSec) included in header information of the multimedia content to be played, and at least one data chunk information included in the multimedia content to be played; Preferably, at least one storage capacity information is used to confirm information on a scheduled play time of the multimedia content to be played.

Thereafter, the terminal generates a second (i + 1) index generation unit based on a first (i = 1) communication performance and a first (i = 1) scheduled play time (or the number of frames) of the multimedia content to be played. The capacity information is checked (950).

If the second (i + 1) index generation unit capacity information is checked (955), the terminal plays a predetermined non-playback time (or frame) while playing the first multimedia content playback area (eg, the multimedia content viewer). In step 960, it is determined whether a skipped playback time (or frame) occurs due to the request of the user.

If a predetermined non-playback time (or frame) occurs while playing the first (i = 1) multimedia content playing area (965), the terminal determines the first (i = 1) communication performance and the first (i). i = 1) The second (i + 1) index generation unit capacity information is reconfirmed by further including the non-play time (or frame) at the scheduled playback time (970).

Thereafter, the terminal has a second (i + 1) multimedia content storage capacity for the playback target multimedia content received from the content providing server 830 (or the messenger terminal 835). By checking whether the index generation unit capacity is reached (or exceeded), it is checked whether the index information generation condition for each second (i + 1) unit capacity is satisfied (975).

According to another exemplary embodiment of the present invention, after the first (i = 1) index generation unit capacity information is confirmed, the non-reproduction time (or frame) is changed in real time so that the index generation unit capacity information is real time. In the case of fluctuation, by checking whether the first (i = 1) storage capacity reaches (or exceeds) the index generation unit capacity identified by the non-play time (or frame) variation, the second (i + 1) It is preferable to check whether the index information generation condition for each unit capacity is satisfied.

According to another exemplary embodiment of the present invention, after the first (i = 1) index generation unit capacity information is confirmed, the non-reproduction time (or frame) is changed in real time so that the index generation unit capacity information is changed. In the case of real-time fluctuation, by checking whether the first (i = 1) index generation unit capacity information is smaller than a predetermined data chunk size included in the multimedia content, index information for each second (i + 1) unit capacity It is desirable to confirm that the production conditions are satisfied.

If it is determined that the condition for generating index information for each second (i + 1) unit capacity is satisfied (980), the terminal checks whether all of the multimedia content to be played are received (985)>

If all of the playback target multimedia contents are not received at a time point when the second (i + 1) unit capacity index information generation condition is satisfied (990), the terminal determines that the second (i + 1) of the playback target multimedia contents is not received. ) Extracts file information and data chunk information on storage capacity to generate index information for each second (i + 1) unit capacity (992), and based on the generated index information for each second (i + 1) unit capacity. The second (i + 1) multimedia content reproduction region is decoded and reproduced (994), and the index information for each predetermined unit capacity for the multimedia content is generated and the reproduction process is performed when all the reproduction target multimedia contents are received. It is preferable to repeat until.

On the other hand, if all of the playback target multimedia contents are received at the time when the index information generation condition for each second (i + 1) unit is satisfied (990), the terminal generates final index information for the playback target multimedia contents. In operation 996, the multimedia content is decoded and reproduced through the generated final index information (998).

According to the present invention, in receiving multimedia content including a file structure that cannot be reproduced in real time, periodically checking the reception capacity information per unit time for the received multimedia content, and the received capacity information per unit time After confirming the optimal index update reference capacity information based on the optimal (eg, index update without interruption of playback), by generating and applying the index information for the multimedia content when the index update reference capacity is received, There is an advantage of real-time playback of multimedia content including a file structure that cannot be played in real time.

According to the present invention, in receiving multimedia content including a file structure that cannot be reproduced in real time, periodically checking the reception capacity information per unit time for the received multimedia content, and the received capacity information per unit time After confirming the optimal index update reference capacity information based on the optimal index (for example, the index can be updated without interruption of playback), if the multimedia content receiving speed is less than the multimedia content playing speed for a predetermined time, the multimedia content is played back without interruption. By outputting a solution for this, there is an advantage of solving complaints and questions of the viewers who watch the multimedia content.

Claims (20)

Repetitively checking storage capacity information of the received multimedia content when playing predetermined multimedia content; Extracting configuration information of a part of the multimedia content file being received for each predetermined storage capacity based on the identified storage capacity information; Generating index information for each storage capacity unit based on the extracted information; And And playing the multimedia content by using the generated index information. A computer-readable recording medium having recorded thereon a program for executing the method of claim 1. The method of claim 2, wherein the recording medium, A wired or wireless terminal on which the program is executed; or And a server storing and managing the program and transmitting the program to a user terminal. A program for repeatedly checking the storage capacity information of the multimedia content being received, generating index information for each storage unit based on the identified storage capacity information, and playing the multimedia content using the generated index information. ; And And a server for providing the multimedia content and the multimedia content playing program to a user wired terminal or a wireless terminal. Repetitively checking storage capacity information of the multimedia content being received when playing the multimedia content in a streaming method; Determining whether the identified storage capacity information corresponds to index generation unit capacity information; If the determined storage capacity information matches the index generation unit capacity information, generating index information on the received multimedia content for each unit capacity; And And playing the multimedia content in a streaming manner by using the index information generated for each unit capacity. The method of claim 5, Checking the communication performance (bytes / sec) information and setting index generation unit capacity information for playing the streaming-based multimedia content based on the identified communication performance information. How to play. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 5 to 6. The method of claim 7, wherein the recording medium, A wired or wireless terminal on which the program is executed; or And a server storing and managing the program and transmitting the program to a user terminal. When playing the multimedia content of the streaming method, repeatedly checks the storage capacity information of the multimedia content being received, determines whether the identified storage capacity information corresponds to the index generation unit capacity information, and as a result of the determination, the checked storage When the capacity information matches the index generation unit capacity information, the program generates index information on the received multimedia content for each unit capacity, and then plays the multimedia content in a streaming manner using the index information generated for each unit capacity. ; And And providing the multimedia contents reproduction program to a user wired terminal or a wireless terminal, and transmitting the multimedia content to the user wired terminal or a wireless terminal in a streaming manner. Setting and storing index generation unit capacity information for each communication capability (bytes / sec) of a terminal that plays multimedia content in a streaming manner; Repetitively checking storage capacity information of the multimedia content being received when playing the multimedia content in a streaming method; Determining whether the identified storage capacity information corresponds to the stored index generation unit capacity information; If the determined storage capacity information matches the index generation unit capacity information, generating index information on the received multimedia content for each unit capacity; And And playing the multimedia content in a streaming manner by using the index information generated for each unit capacity. A computer-readable recording medium having recorded thereon a program for executing the method of claim 10. The method of claim 11, wherein the recording medium, A wired or wireless terminal on which the program is executed; or And a server storing and managing the program and transmitting the program to a user terminal. When playing multimedia content in a streaming method, the storage capacity information of the multimedia content being received is repeatedly checked, and the checked storage capacity information is preset and stored in the communication performance (bytes / sec) -multimedia content in a streaming manner. It is determined whether or not the horse's communication performance (bytes / sec) -specific index generation unit capacity information is met. A program for generating, by unit capacity, index information of the received multimedia content for each unit capacity, and then playing the multimedia content in a streaming manner using the index information generated for each unit capacity; And And providing the multimedia contents reproduction program to a user wired terminal or a wireless terminal, and transmitting the multimedia content to the user wired terminal or a wireless terminal in a streaming manner. During playback of the predetermined multimedia content, the storage capacity information of the received multimedia content is repeatedly checked, and the configuration information of the part of the multimedia content file being received for each predetermined storage capacity unit is extracted based on the identified storage capacity information. An information generator configured to generate index information for each storage capacity unit based on the extracted information; And And a content reproducing unit for reproducing the multimedia content using the generated index information. An information confirmation unit repeatedly checking the storage capacity information of the multimedia content being received and determining whether the identified storage capacity information corresponds to the index generation unit capacity information when the streaming multimedia content is played back; An information generation unit for generating index information on the received multimedia content for each unit capacity if the identified storage capacity information matches the index generation unit capacity information; And And a content reproducing unit for reproducing the multimedia content using the generated index information. An information setting unit for setting and storing index generation unit capacity information for each communication capability (bytes / sec) of a terminal that plays multimedia content in a streaming manner; An information confirmation unit repeatedly checking the storage capacity information of the multimedia content being received and determining whether the checked storage capacity information corresponds to the stored index generation unit capacity information when streaming multimedia content is played back; An information generation unit for generating index information on the received multimedia content for each unit capacity if the identified storage capacity information matches the index generation unit capacity information; And And a content reproducing unit for reproducing the multimedia content using the generated index information. The apparatus of any one of claims 14 to 16, wherein the multimedia content playback device is An apparatus for playing the multimedia content in a streaming manner through a wired communication network; And at least one device for playing the multimedia content in a streaming manner through a wireless communication network. A computer-readable recording medium having recorded thereon a program for executing a function of the device component of any one of claims 14 to 16. Confirming capacity information of the received multimedia content; And And reproducing the multimedia content corresponding to the received capacity in a streaming manner when the identified capacity information meets a predetermined unit capacity. A computer program for recording a program for executing the program. 20. The method of claim 19, wherein the recording medium, A wired or wireless terminal on which the program is executed; or And a server storing and managing the program and transmitting the program to a user terminal.

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