KR20120064953A - Method and apparatus for providing progressive download streaming service based on location of file header - Google Patents

Abstract

PURPOSE: A method and an apparatus for adaptively supplying a progressive download streaming service to a file header are provided to generate a local file by searching for a location of the file header. CONSTITUTION: A user terminal requests a content file to a server(S10). The user terminal generates a local file for progressive download streaming. A file header is located in the middle of data in the local file. The user terminal stores the file header in a memory(S30). The user terminal stores the data in the memory(S50). The user terminal streams the stored data(S60).

Description

Method and Apparatus for Providing Progressive Download Streaming Service based on Location of File Header}

The present invention relates to a method and an apparatus for providing a progressive download streaming service, wherein a file existing in the front, middle, or back of a file by searching for a location of a file header when progressive download streaming of a multimedia content file exists. The present invention relates to a method and an apparatus for providing a streaming service by generating a local file such that a header becomes a file header moved forward from a user terminal.

With the development of internet technology and mobile communication technology, users can use various content services provided by a web server through a computer or mobile terminal in a home or office. In particular, anytime, anywhere through the user terminal can be downloaded in real time multimedia content such as movies, news, UCC, music provided from various web servers on the Internet in a streaming form.

In a web server that provides a real-time streaming service, multimedia content files can be managed in various forms. For example, depending on the playback environment, the file header of the multimedia content file may manage not only the front of the data but also various content files in which the file header exists in the middle or the back of the data in a special case.

However, in a general user terminal, when a content file is downloaded from a web server and the header is not present at the time of streaming playback, playback may not be possible.

Accordingly, an object of the present invention is to solve the above-described problem, and an object of the present invention is to search for a location of a file header when progressive download streaming of a multimedia content file exists, not in front of, in the middle, or behind a file. The present invention provides a method and apparatus for providing a streaming service by generating a local file so that a file header becomes a file header moved forward from a user terminal.

First, to summarize the features of the present invention, a streaming service method from a server on a network in a user terminal according to an aspect of the present invention, the step of requesting a content file to the server; And generating a local file for progressive download streaming of the corresponding content file provided from the server, the file header being in the middle of or behind the data, wherein the file header is first stored in memory and the data is subsequently stored. Generating a data stream, the data being sequentially stored in the memory;

The user terminal receives all the information about the content file from the server, stores it in the memory, retrieves the file header from the information, and positions the file header so that the data is read and played after the file header. The reconstructed local file can be created.

Alternatively, while the user terminal receives the information about the content file from the server and stores it in the memory, the file header is retrieved from the received information, and the file header is first stored in the memory, and the server The server may stop the request for the content file, and thereafter, request the data corresponding to the file header to the server and store the corresponding data received in the memory to generate the local file.

Alternatively, in response to a request of the content file, the server first receives the file header, which is retrieved and transmitted from the server, stores the file header in the memory, and then requests the server for the data corresponding to the file header to receive the corresponding data The local file may be generated by storing in the memory.

According to another aspect of the present invention, a streaming service apparatus for receiving a streaming service from a server on a network at a user terminal includes a file request / receiver communicating with a server for requesting and receiving a content file; A local file generator for generating a local file for progressive download streaming of the corresponding content file provided from the server through the file request / receiver, in which a file header is in the middle or behind the data; And a reproducing unit for reproducing a content file, wherein the local file generating unit generates the local file in which a file header is first stored in a memory and subsequently stored corresponding data, and the data is sequentially stored in the memory. Play live streaming.

The local file generation unit receives all information about the content file from the server, stores the information in the memory, retrieves the file header from the information, and reads the file header after the file header to reproduce the data. The local file can be created with the location reconfigured.

Alternatively, the local file generator, while receiving the information about the content file from the server and storing it in the memory, retrieves the file header from the received information, and first stores the file header in the memory, The server may stop the request for the content file, and then the local file may be generated by storing the corresponding data received by requesting and receiving the data corresponding to the file header from the server.

Alternatively, the local file generating unit first receives the file header, which is searched and transmitted from the server according to the request of the content file, stores the file header in the memory, and then requests the server for the data corresponding to the file header. And store the received data in the memory to generate the local file.

According to a method and apparatus for providing a progressive download streaming service according to the present invention, a user terminal may search for a location of a file header at the time of progressive download streaming of a multimedia content file to search for a file header existing in the middle of or behind the file. By creating a local file to be a file header moved forward in the, progressive download streaming playback is possible regardless of the location of the file header of the provided content.

1 is a view for explaining a streaming service system according to an embodiment of the present invention.
2 is a view for explaining a user terminal according to an embodiment of the present invention.
3 is a diagram for describing a header position of a multimedia content file.
4 is a flowchart illustrating an operation of a streaming service system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

1 is a view for explaining a streaming service system 100 according to an embodiment of the present invention.

Referring to FIG. 1, the streaming service system 100 according to an embodiment of the present invention includes a user terminal 110, a network 120, and a streaming server 130.

Here, the network 120 may be a wired or wireless Internet, but is not limited thereto, and may use a mobile communication network such as WCDMA, WiFi, or WiBro. The user terminal 110 may be a smartphone, but is not limited thereto, and may include a notebook PC, a desktop PC, a Palm Personal Computer, or the like, which may communicate with the streaming server 130 through the network 120. Cell phone (PCS phone), Personal Communications Services phone (PCS phone), Synchronous / Asynchronous IMT-2000 (International Mobile Telecommunication-2000) capable of wireless communication, Personal Digital Assistant (PDA), Wapphone ( WAP phone: Wireless application protocol phone, mobile play-station, other portable multimedia player (PMP) and portable or mobile terminal, and can be used to communicate with other electronic devices. It may include an electronic device or a device.

In the present invention, in particular, the user terminal 110 may download the multimedia content file from the streaming server 130 on the network to provide a progressive download streaming service, by searching the location of the file header to the front, middle, or By generating a local file so that the file header existing later becomes a file header moved forward from the user terminal 110, the progressive download streaming playback regardless of the position of the file header of the content file provided from the streaming server 130. This made it possible. Progressive download streaming services are based on the standard procedures of Request for Comments (RFC) issued by the Internet Engineering Task Force ( IETF ), Realtime Transport Protocol (RTP), Realtime Transport Streaming Protocol (RTSP), and Realtime Transport (RTCP). As a streaming service such as Control Protocol), the streaming service may be a method of reproducing pre-stored data while downloading and storing a content file.

2 is a view for explaining a user terminal 110 according to an embodiment of the present invention.

Referring to FIG. 2, the user terminal 110 according to an exemplary embodiment of the present invention includes a file request / receiver 111, a local file generator 112, a memory 113, and a playback unit 114. do. Such components may be included in a player for playing the multimedia content file of the user terminal 110, and they may be implemented in software, hardware, or a combination thereof.

The file request / receiver 111 selects a content for progressive download streaming by clicking or touching while browsing a web page through the user terminal 110 and requests the content file to the streaming server 130. Communicate with streaming server 130 to request and receive. The file request / receiver 111 may include an interface for communicating with the streaming server 130 through a network 120 using wired or wireless Internet, WCDMA, WiFi, WiBro, or the like.

When the content file is requested through the file request / receiver 111, the local file generator 112 receives the corresponding content file from the streaming server 130. In this case, the file header of the received content file is in the middle of the data. A local file for progressive download streaming may be generated for the corresponding content file at a later time and stored in the memory 113. The reproducing unit 114 may reproduce the pre-stored data of the corresponding local file in the memory 113 in real time.

At this time, the local file generating unit 112 for generating the local file so that the playback unit 114 reproduces in real time streaming, the file header of the content file to be received, such as FILE # 2, FILE # 3 of FIG. For the corresponding content file in which the file header is first stored in the memory 113 and the corresponding data file is subsequently generated in the memory 113, the playback section 114 stores the file header stored in the memory 113. Refer to to enable real-time streaming playback of data stored in the local file. As shown in FILE # 1 of FIG. 3, the playback unit 114 may play the content file in which the file header is received before the data as before, while sequentially storing the header and the data of the file in the memory 113 as in the conventional method. .

For reference, information that is a header of a content file for RTP, RTSP, or RTCP streaming includes V (version), P (padding), X (extension), CC (CSRC count), M (marker), and PT (payload). type), Sequence Number, TimeStamp, SSRC, CCRC List and the like may contain predetermined information with a predetermined number of bits. You can refer to the standard RFC for details on the header of such content files.

On the other hand, the local file generation unit 112 may generate a variety of ways to generate the local file for the content file, the file header of the content file received as described above or in the middle of the data.

For example, the local file generator 112 may first receive all information about the corresponding content file requested from the streaming server 130 and store it in the memory 113. Thereafter, the local file generator 112 searches the file header to reconstruct information about the corresponding content file stored in the memory 113. Next, the local file generating unit 112 stores the file header retrieved in the memory 113 again in another storage space of the memory 113, and stores the corresponding data to be read and played behind the file header by the player. It is stored in another storage space of the memory 113. As such, the local file generator 112 may generate the local file by reconfiguring the received content file such that the location of the file header is located in front of the file and subsequently the corresponding data is stored.

In addition, for example, while the local file generation unit 112 receives information on the corresponding content file from the streaming server 130 and sequentially stores the information received in the memory 113, the local file generation unit 112 generates a file header from the received information. You can search. When the file header is retrieved, the local file generator 112 may first store the file header in the memory 113 and stop the request for the corresponding content file from the streaming server 130. Thereafter, the local file generator 112 may request and receive the corresponding data corresponding to the file header stored in the memory 113 to the streaming server 130. Accordingly, the local file generator 112 may store the received data in a storage space of the memory 113 behind the file header, thereby generating a corresponding local file reconstructed from the original content file.

In addition, in order to further reduce the usage of the memory 113 and prevent traffic congestion of the network 120, some operations of the user terminal 110 may be executed in the streaming server 130 as shown in FIG. 4.

First, it is assumed that a predetermined player (or browser) is mounted or installed in the user terminal 110 to receive streaming services such as RTP, RTSP, and RTCP. By executing a player (or a browser) as described above, the user terminal 110 may display a menu, a site, a recent news, etc. provided by the corresponding player on the screen of the user terminal 110, and the user may browse various sites provided by the player. In the meantime, in order to access a site operated by the streaming server 130, an ID and a password may be input through the user terminal 110 to access the corresponding streaming server 130. Here, it is assumed that the user is subscribed as a member to the site operated by the streaming server 130. A user can browse a visited page by inputting an ID and a password, and can download multimedia contents such as movies, news, UCC, music, etc. provided from the corresponding server in real time, and watch them in streaming form.

To this end, referring to FIG. 4, the user selects and requests a content for which the streaming service is desired by clicking, touching, or the like from a list of screens (S10). As a user selects and requests a content from a page visited, a URI (Uniform Resource Indicator) designated to be linked to the content according to the streaming service type may be extracted by the player (or browser), and thus the file request / receiver 111 may request the corresponding content file by including the URI in the request message and transmitting it to the streaming server 130 (S11).

Such a request message may include a predetermined identifier for searching a file header. Accordingly, the streaming server 130 searches for a file header from a content file corresponding to the URI (S20), and searches the corresponding file header for the user terminal (S20). The local file generator 112 may store the received file header in the memory 113 first (S30).

Thereafter, the local file generating unit 112 may request data corresponding to the corresponding file header to the streaming server 130 (S40), and retrieve the data transmitted by the streaming server 130 (S41) (S42). ). Accordingly, the local file generator 112 may sequentially store the received data in a storage space of the memory 113 behind the file header, thereby generating a corresponding local file reconstructed from the original content file. The reproduction unit 114 may sequentially reproduce the data stored in the local file in real time by referring to the file header stored in the memory 113.

As described above, in the streaming service system 100 according to an exemplary embodiment of the present invention, a file header existing in the middle of or after a file is searched for by a user terminal during the progressive download streaming of a multimedia content file. By creating a local file to be a forwarded file header, progressive download streaming playback is possible regardless of the location of the file header of the provided content.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

Streaming Service System (100)
User terminal 110
Network (120)
Streaming server (130)

Claims (8)

A streaming service method from a server on a network in a user terminal,
Requesting a content file from a server; And
Create a local file for progressive download streaming of the corresponding content file provided from the server, with a file header in the middle or after the data, wherein the file header is first stored in memory and the data is subsequently stored. During generation, real-time streaming playback of data sequentially stored in the memory
Streaming service method comprising a. The method of claim 1,
The user terminal receives all the information about the content file from the server, stores it in the memory, retrieves the file header from the information, and positions the file header so that the data is read and played after the file header. Streaming service method, characterized in that for generating the reconstructed local file. The method of claim 1,
While the user terminal receives the information on the content file from the server and stores it in the memory, the file header is retrieved from the received information, and the file header is first stored in the memory, and the server Stopping a request for a content file, and after the request to the server to the data corresponding to the file header to store the received data in the memory to generate the local file. The method of claim 1,
In response to a request of the content file, the server receives and stores the file header transmitted from the server to the memory, and thereafter, the server requests the data corresponding to the file header to receive the received data. Streaming service method, characterized in that for generating the local file by storing in. In the streaming service apparatus for receiving a streaming service from a server on a network in a user terminal,
A file request / receiver that communicates with a server to request and receive a content file;
A local file generator for generating a local file for progressive download streaming of the corresponding content file provided from the server through the file request / receiver, in which a file header is in the middle or behind the data; And
A playback unit for playing the content file,
The local file generator, the streaming service device, characterized in that for storing the file header first in the memory and the local file that stores the data in succession, the playback unit in real time streaming playback data sequentially stored in the memory . The method of claim 5,
The local file generation unit receives all information about the content file from the server, stores the information in the memory, retrieves the file header from the information, and reads the file header after the file header to reproduce the data. And generating the local file with the reconfigured location. The method of claim 5,
The local file generator, while receiving the information about the content file from the server and storing it in the memory, retrieves the file header from the received information, first stores the file header in the memory, and the server And stops the request for the content file, and then stores the data received by requesting the data corresponding to the file header to the server in the memory to generate the local file. . The method of claim 5,
The local file generating unit first receives the file header, which is searched and transmitted from the server according to the request of the content file, stores the file header in the memory, and then requests and receives the data corresponding to the file header from the server. Streaming service device, characterized in that for storing the corresponding data in the memory to generate the local file.

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