KR20010018003A - Multiple data synchronizing method and multiple multimedia data streaming method using the same - Google Patents

Abstract

PURPOSE: The method for synchronizing multiple data and for streaming multimedia data based on the synchronization is provided to simultaneously transmit the multimedia data, and to prevent the multimedia data from being interfered by each other in a multimedia streaming service. CONSTITUTION: A transmitter streaming service part forms a packet of the multimedia data in a disk and transmits it via a transmitter socket(601). A receiver socket receives the multimedia transmitted from the transmitter socket(602). The same kind of multimedia data of the received packet is arranged in sequence(603). The multimedia data is synchronized with one presentation(604). The multimedia data is transmitted to a multimedia data processing unit(MDPU) in a continuous multimedia stream type, and thereby the multimedia data is reproduced(605).

Description

MULTIPLE DATA SYNCHRONIZING METHOD AND MULTIPLE MULTIMEDIA DATA STREAMING METHOD USING THE SAME}

The present invention relates to a multiple data synchronization method and a computer-readable recording medium having recorded thereon a program for realizing the method. In particular, the present invention relates to a method of performing synchronization for multiple data in one bundle, such as a presentation. And a computer readable recording medium having recorded thereon a program for realizing the method.

The present invention also relates to a multimedia data streaming method and a computer readable recording medium having recorded thereon a program for realizing the method, in particular, when two or more multimedia streams are transmitted in one presentation. A multimedia data streaming method for synchronizing streams using a data synchronization method and a computer-readable recording medium having recorded thereon a program for realizing the method.

In the conventional video streaming service, a video or audio data is streamed without being downloaded through a network to enable transmission / playback in real time.

However, if there are two or more multimedia streams instead of one, and the two or more multimedia streams serve as one presentation, there is a problem in that synchronization is difficult in real time transmission.

That is, the multimedia streaming service is difficult because synchronization for multiple data represented by one presentation is not implemented.

The present invention devised to solve the problems described above, can be read by a computer recording a multi-data synchronization method and a program for realizing the multi-data synchronization method for synchronizing a plurality of data consisting of one bundle based on the generation time The purpose is to provide a recording medium.

In addition, the present invention provides a multi-media data streaming method for providing a streaming service through the multi-data synchronization method described above for multiple multimedia streams transmitted in one presentation, and a computer program for recording the program for realizing the method. Another purpose is to provide a record carrier.

1 is a configuration example of a data transmission and reception system for providing a multimedia data streaming service to which the present invention is applied.

FIG. 2 is an exemplary configuration diagram of a transmitting-side streaming service apparatus for transmitting multimedia data stored in a disc according to the present invention in unit packets. FIG.

3 is a configuration example of a receiving-side streaming service apparatus for receiving and converting a unit packet to a stream according to the present invention.

4 is a detailed configuration example of a stream synchronization module for sequentially arranging received multimedia unit frames to which the present invention is applied.

5 is a detailed configuration example of a module for performing presentation synchronization of a received multiple multimedia streams to which the present invention is applied.

6 is a flowchart illustrating an embodiment of a multi-media data streaming method according to the present invention.

7 is a detailed flowchart illustrating a process of packetizing and transmitting multiple multimedia data according to the present invention.

8A and 8B are detailed flowcharts illustrating an embodiment of sequentially arranging multimedia data of the same type according to the present invention.

9 is a detailed flowchart of an embodiment of a process of performing a presentation synchronization on a plurality of multimedia data according to the present invention.

* Explanation of symbols for the main parts of the drawings

101 disk 102: sender streaming service device

103: socket on the sending side 104: socket on the receiving side

105: receiving side streaming service device

106: multimedia data processing device

In order to achieve the above object, the present invention provides a multi-data synchronization method applied to a data receiving system, comprising: a first step of receiving multiple data transmitted by dividing it into a predetermined size and comparing the generation time thereof; As a result of the comparison of the first step, a second step of realizing synchronization by finding data of the same generation time in the storage means, if not multiple data having the same generation time, and temporarily storing data having a different generation time in the storage means; And a third step of implementing synchronization with respect to the multiple data if the multiple data having the same generation time as a result of the comparison of the first step.

In accordance with another aspect of the present invention, there is provided a multi-media multimedia data streaming method applied to a data transmission / reception system. step; Extracting unit frames from the received multiple multimedia data packets and sequentially arranging frames of the same type; And a third step of sequentially playing the multimedia stream by synchronizing the presentation on the basis of the generation time of the plurality of multimedia frames sequentially arranged.

The present invention also provides a data receiving system having a large capacity processor, comprising: a first function of receiving multiple data transmitted by dividing it into a predetermined size and comparing the generation time thereof; A second function of locating data having the same generation time in the storage means if the data are not multiple data having the same generation time as a result of the comparison of the first function, and temporarily storing data having different generation times in the storage means temporarily; And a computer-readable recording medium having recorded thereon a program for realizing a third function for implementing synchronization for the multiple data if the first function compares the multiple data with the same generation time.

The present invention also provides a data transmission / reception system including a large capacity processor, comprising: a first function of dividing a plurality of multimedia data to be transmitted by the same presentation into frame units and transmitting the packetized data; A second function of extracting unit frames from the received multiple multimedia data packets and sequentially arranging frames of the same type; And a computer-readable recording medium having recorded thereon a program for realizing a third function of continuously playing a multimedia stream by synchronizing a presentation based on a generation time of a plurality of multimedia frames sequentially arranged.

The present invention is a model in which the presentation synchronization module, which is necessary for real-time transmission of multiple multimedia streams, is further developed in addition to the streaming scheme for transmitting video in real time in multimedia data transmission through a network. To explain the difference from the existing invention, the existing invention consists only of a stream structure capable of transmitting a single multimedia stream in real time. A synchronization module for synchronizing their synchronization when two or more multiple multimedia streams are transmitted in one presentation. This does not exist. In addition, by transmitting the audio frame and the video frame alternately one by one, the receiver can receive an improved stream structure upon reception. In the present invention, a model of the synchronization module and a transmission technique are presented as an extension model in the existing invention, and the synchronization operation of two or more multimedia data streams is performed using the same.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The multiple data synchronization method will be described through the description of the presentation synchronization module and the presentation synchronization method, which are multiple data synchronization parts of the multimedia data streaming service.

FIG. 1 is an exemplary configuration diagram of a data transmission / reception system for providing a multimedia data streaming service to which the present invention is applied. As shown in FIG. 1, a streaming side streaming service apparatus 102 transmits multimedia data existing on a disk 101. Transmits the data through the socket 103, and when the receiving streaming service device 105 receives the received data through the socket 104 on the receiving side, the multimedia data is converted into a continuous multimedia stream to convert the multimedia data into a multimedia data processing device (MDPU, 106).

Then, the multimedia data processing unit (MDPU) 106 processes and outputs the multimedia data in the form of a stream.

FIG. 2 is an exemplary configuration diagram of a transmitting-side streaming service apparatus for dividing and transmitting multimedia data stored in a disc according to the present invention into unit packets.

This is a detailed model of the transmission-side streaming service device 102 for transmitting two multimedia streams in real time by transmitting the two streams in one presentation.

The video unit packet 205 is divided into a video unit frame 202 in the video stream 201, and the video unit packet 205 that can be transmitted is added to the divided video unit frame 202 by adding the video unit frame header information 203 and the frame number 204. Create In this case, the video unit frame header information 203 contains information of the corresponding video frame, and the frame number 204 includes time information at the time when the video unit frame 202 is divided in the video stream 201. Contains information converted into. The generated video unit packet is transmitted through the network in the sender socket 103.

When one video unit packet 205 is transmitted through the packet generation process from the video stream 201 to the socket 103, the audio unit frame 212 is opened by opening the second multimedia stream, the audio stream 211. Extract. The audio unit packet 215 is generated by adding the audio unit frame header information 213 and the frame number 214 to the extracted audio unit frame 212, and then transmits the audio unit packet 215 to the network through the transmitting socket 103. This allows the transmission of two multimedia unit packets in synchronization.

FIG. 3 is an exemplary configuration diagram of a receiving-side streaming service apparatus for receiving and converting a unit packet to a stream according to the present invention, and showing a process of streaming data packets received by the receiving-side streaming service apparatus 105.

Receive socket 104 receives the first data packet. If the received data packet is a video unit packet 301, the video unit frame header information 303, the frame number 304, and the video unit frame 302 are separated. The video unit frame 302 is a stream synchronization module 305. The synchronized video unit frame 302 is stored in the video buffer 306 and then transmitted to the module 309 which performs presentation synchronization of the received multimedia data. ) And the audio unit frame 312 are synchronized with the presentation and transmitted to the multimedia processing device 106.

Two flow controllers 307 and 308 are used to smoothly stream multimedia data through the video buffer 306 of the limited memory. The roles of the flow controllers 307 and 308 are as follows.

First, the first flow controller 307 blocks transmission when the video buffer 306 fills up with video frames. In addition, when the video buffer 306 is empty, the first flow controller 307 requests a new frame, and at the same time, the second flow controller 308 stops the flow of data to stop the data transmission to the presentation synchronization module 309. It acts as a control.

If the data packet received through the receiving socket 104 is an audio unit packet 311, the audio unit frame 312 may receive an audio buffer in the same manner as the video unit packet 301. 316 is sequentially transmitted, and the audio buffer 316 is transmitted to a module 309 which performs presentation synchronization of the received multimedia data, thereby synchronizing the presentation of the video unit frame 302 and the audio unit frame 312 with each other. To the multimedia data processing unit (MDPU) 106.

4 is a detailed configuration example of a stream synchronization module for sequentially arranging received multimedia unit frames to which the present invention is applied.

The stream synchronization module of FIG. 4 shows a detailed configuration example of the stream synchronization modules 305 and 315 for synchronizing multimedia unit frames of the same type during the frame reception process of FIG. 3.

The stream synchronization module, via the frame number 401 separated in the multimedia data unit packet, directly to the reception stream buffer 403 if the current multimedia unit frame is the next one after the previously received multimedia unit frame 402. The multimedia unit frame is transmitted, and if the frame number 401 of the received frame is not the multimedia unit frame generated next to the previously received multimedia unit frame 402, the multimedia unit frame is stored in the temporary storage buffer 404. The frame is transmitted to the receiving stream buffer 403 after the frame generated next to the received multimedia unit frame 403 is received.

Here, the reception stream buffer 403 corresponds to the video buffer 306 or the audio buffer 316 in FIG. The frame number 401 converts time information when a multimedia data unit frame is divided into a frame number in a multimedia data stream.

5 is a detailed configuration example of a module for performing a presentation synchronization of a received multi-media stream to which the present invention is applied. The presentation synchronization module 309 synchronizes two or more multimedia data streams to each other in a specific flow. To be provided accordingly.

After receiving each video frame and audio frame from the video buffer 306 and the audio buffer 316, the frame comparison module 501 compares the frame numbers based on the time of the two frames, and if it is the same, the presentation synchronization buffer The frame is sent to 502, and if the value is not the same, it is searched for a frame having a frame number indicating that the frames stored in the presentation temporary buffer 503 are created at the same time. If there is no frame having the same creation time in the presentation temporary buffer 503, the current frame is stored in the temporary buffer 503, and each video frame and audio frame is removed from the video buffer 306 and the audio buffer 316. Accept again to check if the frame numbers are the same.

If there is a frame with the same frame number in the presentation temporary buffer 503, this frame is transmitted to the presentation synchronization buffer 502.

Since the frames once transmitted to the presentation synchronization buffer 502 are synchronized with the presentation, the frames may be transferred directly to the multimedia data processing unit MDPU 106 to perform appropriate multimedia processing.

In the above-described embodiment, the present invention has been limited to the video data and the audio data, which are multimedia data. The present invention can also be applied to a plurality of pieces of data in one presentation.

6 is a flowchart illustrating an embodiment of a multi-media data streaming method according to the present invention.

The multimedia streaming data, which is one presentation present in the disk 101, is made into a packet by the transmitting-side streaming service apparatus 102 and transmitted through the transmitting-side socket 103 (601). The multimedia data transmitted from the transmitting socket 103 is received (602).

After sequentially arranging the same kind of multimedia data among the received multimedia data packets (603) and synchronizing the multiple multimedia data into one presentation (604), the multimedia data processing apparatus (MDPU) in the form of a continuous multimedia stream And transmits the multimedia data as one presentation (605).

7 is a detailed flowchart illustrating a process of packetizing and transmitting multiple multimedia data according to the present invention.

This embodiment describes a process of packetizing and transmitting two multiple multimedia data streams, a video stream and an audio stream.

First, the video streaming service apparatus divides the video stream into frame units according to a predetermined time (701), and then attaches frame header information and a frame number to the divided video unit frame (702) to generate a video unit packet. . After the audio stream is divided in units of frames according to a predetermined time (703), frame header information and frame numbers are appended to the divided audio unit frames (704) to generate an audio unit packet.

One video unit packet and one audio unit packet are transmitted to the network through the transmitting socket (705, 706), and it is checked whether multiple multimedia streams of video and audio to be transmitted remain (707).

As a result of checking whether there are multiple multimedia streams to be transmitted, if there are multiple multimedia streams to be transmitted, the process is repeatedly performed from step 701 of dividing the video stream into frame units according to a predetermined time.

As a result of checking whether there are multiple multimedia streams to be transmitted, if there are no multiple multimedia streams to be transmitted, the process of packetizing and transmitting the multimedia data is terminated.

8A and 8B are detailed flowcharts illustrating an embodiment of sequentially arranging multimedia data of the same type according to the present invention.

In operation 801, it is checked whether the packet received at the receiving socket 104 is a video packet.

As a result of checking whether the video packet is a video packet, the video unit packet is divided into video unit frame header information, frame number, and video unit frame (802), and transmitted to the video stream synchronization module (803).

It is checked whether the video frame received by the video stream synchronization module is the next generated frame of the previously received video frame (804). This may be confirmed through a frame number in which time information at the time point at which the video unit frame is divided in the stream is converted.

As a result of checking whether the frame is generated next to the previously received video frame, the next frame is checked whether the video buffer in which the video frame is stored is completely filled (805).

As a result of checking whether the video buffer is completely filled, if the video buffer is completely filled, the process is repeatedly performed after a process of checking whether the video buffer is completely filled after waiting for a predetermined time.

As a result of checking that the video buffer is completely filled, if the video buffer is not completely filled, and the video frame can be stored, the video buffer is transmitted to the video buffer for storage (806) and received at the receiving socket (104). Check if there are more packets dropped (816). As a result of the check, if there is no packet received in the receiving socket 104, the process of sequentially arranging the same type of multimedia data 603 is terminated. If there are more packets received, it is checked whether the received packet is a video packet. The process is repeated from step 801.

As a result of checking whether the frame is generated next to a previously received video frame, if the next frame is not generated, the video frame being processed is stored in temporary storage (807), and the previously received video is stored in temporary storage. It is determined whether there is a next frame of the frame (808).

As a result of determining whether there is a next frame of the previously received video frame, if there is a next frame in the temporary storage space, the process is repeated from step 805 to check whether the video buffer in which the video frame is stored is completely filled.

As a result of determining whether there is a next frame of a previously received video frame, if there is no next frame in the temporary storage space, it is checked whether there are more packets received in the receiving socket 104 (816). As a result of the inspection, if there is no packet received in the receiving socket, the process of sequentially arranging multimedia data of the same type is terminated (603). If the result of the inspection is that there are more packets received in the receiving socket, the received packet is a video. From step 801 to check whether the packet is repeated.

As a result of checking whether the received packet is the video packet, the receiving socket 104 separates the audio unit packet into audio unit frame header information, frame number, and audio unit frame (809). In step 810, the data is transmitted to a stream synchronization module.

It is checked whether the audio frame received by the audio stream synchronization module is the next generated frame of the previously received audio frame (811). This can be confirmed through a frame number in which time information at the time when the audio unit frame is divided in the stream is converted.

As a result of checking whether the frame is generated next to the previously received audio frame, if the next frame is generated, it is checked whether the audio buffer in which the audio frame is stored is completely filled (812).

As a result of checking whether the audio buffer is completely filled, if the audio buffer is completely filled, the process is repeatedly performed after checking whether the audio buffer is completely filled after waiting for a predetermined time.

As a result of checking whether the audio buffer is completely filled, if the audio buffer is not completely filled and an audio frame can be stored, the audio buffer currently being processed is transmitted to the audio buffer for storage (813), and received at the receiving socket 104. Check if there are more packets dropped (816). As a result of the inspection, if there is no packet received in the receiving socket, the process of sequentially arranging multimedia data of the same type is terminated (603). If the result of the inspection is that there are more packets received in the receiving socket, the received packet is a video. From step 801 to check whether the packet is repeated.

As a result of checking whether the frame is generated next to the previously received audio frame, if it is not the next generated frame, the audio frame being processed is stored in the temporary storage space (814), and the previously received audio is stored in the temporary storage space. It is determined whether there is a next frame of the frame (815).

As a result of determining whether there is a next frame of the previously received audio frame, if there is a next frame in the temporary storage space, the process is repeated from step 812 to check whether the audio buffer in which the audio frame is stored is completely filled.

As a result of determining whether there is a next frame of the previously received audio frame, if there is no next frame in the temporary storage space, it is checked whether there are more packets received in the receiving socket 104 (816). As a result of the inspection, if there is no packet received in the receiving socket, the process of sequentially arranging multimedia data of the same type is terminated (603). If the result of the inspection is that there are more packets received in the receiving socket, the received packet is a video. From step 801 to check whether the packet is repeated.

Through the above process, the same multimedia data among the multimedia data received from the receiving socket 104 is sequentially arranged.

9 is a detailed flowchart illustrating an embodiment of performing a presentation synchronization on a plurality of multimedia data according to the present invention.

In operation 901, the frame comparison module compares the frame number to receive the video frame and the audio frame from the video buffer and the audio buffer to determine whether the received video frame and the audio frame are generated at the same time.

As a result of comparing the frame numbers, if the generation time is the same, the video frame and the audio frame are transmitted to the presentation synchronization buffer (902), and it is checked whether there are more frames received (905).

As a result of comparing the frame numbers, if the video frame and the audio frame received from the video buffer and the audio buffer do not have the same generation time, it is checked whether there is a frame having the same generation time among the frames stored in the stream temporary buffer (903). .

As a result of checking whether there is a frame having the same generation time in the presentation temporary buffer, the video frame and the audio frame having the same generation time are transmitted to the presentation synchronization buffer (902). At this time, the remaining video frame or audio frame is stored in the presentation temporary buffer to wait for the frame of the same generation time.

As a result of checking whether there is a frame having the same generation time in the presentation temporary buffer, if not, the video frame and the audio frame are stored in the presentation temporary buffer, and the frame having the same generation time is waited for (904).

After storing the frame in the presentation temporary buffer or transferring it to the presentation synchronization buffer, it is checked if there are more frames received (905).

As a result of checking whether there are more frames received, the frame comparison module repeats the process of comparing frame numbers to determine whether the received video frame and the audio frame are generated at the same time.

If it is determined whether there are more frames received, the process ends 604 of performing a presentation synchronization on the multi-media data.

In case of storing multimedia frames in the presentation temporary buffer, video frames and audio frames are arranged in sequential order, so that the multimedia buffers can be easily and quickly managed by sequentially managing the presentation temporary buffer. Be sure to

When the video frame and the audio frame are synchronized with the generation time and transmitted to the presentation synchronization buffer, the presentation synchronization buffer is transmitted to the multimedia data processing device 106 to perform appropriate multimedia processing.

In this way, when two or more multiple multimedia streams are transmitted in one presentation, synchronization of multiple multimedia streams can be achieved.

The above embodiment can be done in the synchronization of multiple data as well as multiple multimedia streams.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention can simultaneously transmit a plurality of multimedia data by synchronizing a plurality of multimedia data when providing a multimedia data streaming service, and at the same time transmitting multimedia data without causing interference between different data while transmitting multiple multimedia data at the same time. There is an effect that can provide a service.

In addition, the present invention, by further developing a presentation synchronization module necessary for real-time transmission of the multi-media stream to the streaming scheme for transmitting the video in real time in the multimedia data transmission over the network, two or more multi-media When the streams are transmitted in one presentation, they can be synchronized and the audio and video frames are alternately transmitted one by one so that the receiver can receive an improved stream structure. It works.

In addition, the present invention, by performing the synchronization on the received multiple data, not only can be effectively used in the multimedia service that several types are serviced at the same time, but also applies when the synchronization is required in the transmission of the same type of multiple data It can work.

Claims (10)

In the multiple data synchronization method applied to the data receiving system, A first step of receiving multiple data transmitted by dividing it into a predetermined size and comparing the generation time thereof; As a result of the comparison of the first step, a second step of realizing synchronization by finding data of the same generation time in the storage means, if not multiple data having the same generation time, and temporarily storing data having a different generation time in the storage means; And A third step of implementing synchronization for the multiple data if the comparison result of the first step is multiple data having the same generation time; Multiple data synchronization method comprising a. The method of claim 1, The multiple data, Multiple data synchronization method characterized in that the multiple data represented in one presentation. The method according to claim 1 or 2, The second step, A fourth step of checking whether there is data having the same generation time in the storage means when the generation times are not equal as a result of comparing the generation times of the received multiple data; A fifth step of synchronizing data having the same generation time if the data having the same generation time exists in the storage means, and storing the remaining data in the storage means; And A sixth step of storing the received multiple data in the storage means if there is no data having the same generation time in the storage means as a result of the checking in the fourth step; Multiple data synchronization method comprising a. In the multiple multimedia data streaming method applied to a data transmission and reception system, A first step of dividing a plurality of multimedia data to be transmitted as the same presentation into frame units and packetizing the same; Extracting unit frames from the received multiple multimedia data packets and sequentially arranging frames of the same type; And A third step of sequentially playing multimedia streams by synchronizing presentations based on a generation time for a plurality of sequentially arranged multimedia frames; Multi multimedia data streaming method comprising a. The method of claim 4, wherein The first step is, Dividing a plurality of multimedia data to be transmitted as one presentation in frame units at predetermined unit times; A fifth step of constructing a packet by attaching header information and a frame number to the unit frame; And A sixth step of transmitting the multimedia frames through the network in a staggered manner with respect to the multiple multimedia data frames; Multi multimedia data streaming method comprising a. The method of claim 4, wherein The second step, Separating a unit frame, header information, and a frame number from the received plurality of multimedia data packets; A fifth step of transmitting the unit frame to the stream synchronization module which processes multimedia data of the same type; A sixth step of sequentially arranging multimedia frames of the same type according to a frame number based on a generation time of the unit frame in the stream synchronization module; And A seventh step of transmitting and storing the arranged frames to a buffer for storing the same type of frames Multi multimedia data streaming method comprising a. The method of claim 6, The seventh step, An eighth step of confirming, by the flow controller, whether the buffer is completely filled to transfer the arranged frames to a buffer that stores frames of the same kind; A ninth step of repeating the operation from the eighth step after waiting for a predetermined time if the buffer is completely filled as a result of the eighth step; And A tenth step of transmitting and storing the arranged frames to the buffer if the buffer is not completely filled as a result of the eighth step; Multi multimedia data streaming method comprising a. The method according to any one of claims 4 to 7, The third step, An eleventh step of comparing, by the presentation synchronization performing module, each of the plurality of multimedia frames with the same generation time; As a result of the comparison of the eleventh step, a twelfth step of transmitting multiple multimedia frames to the presentation synchronization buffer if the same generation time is achieved, thereby enabling continuous multimedia stream playback as one presentation; A thirteenth step of checking whether there is a frame having the same generation time in the presentation temporary buffer as a result of the comparison in the eleventh step; A fourteenth step of storing each of the received multiple multimedia frames in the presentation temporary buffer when there are no frames having the same generation time as a result of the checking in the thirteenth step; And As a result of the checking of the thirteenth step, if there is a frame having the same generation time, the fifteenth step of transmitting the same to the presentation synchronization buffer to enable continuous multimedia stream playback as one presentation Multi multimedia data streaming method comprising a. A third step of continuously playing the multimedia stream by synchronizing the presentation based on the generation time for the multiple multimedia frames. In a data receiving system having a large processor, A first function of receiving the multiple data transmitted by dividing the predetermined size and comparing the generation time thereof; A second function of locating data having the same generation time in the storage means if the data are not multiple data having the same generation time as a result of the comparison of the first function, and temporarily storing data having different generation times in the storage means temporarily; And A third function of implementing synchronization for the multiple data if the comparison result of the first function is multiple data having the same generation time A computer-readable recording medium having recorded thereon a program for realizing this. In a data transmission and reception system having a large capacity processor, A first function of dividing a plurality of multimedia data to be transmitted by the same presentation into frame units and packetizing them; A second function of extracting unit frames from the received multiple multimedia data packets and sequentially arranging frames of the same type; And A third function of continuously playing multimedia streams by synchronizing the presentation on the basis of the generation time of the plurality of multimedia frames sequentially arranged. A computer-readable recording medium having recorded thereon a program for realizing this.