KR100908144B1 - Multimedia editing / playback system and its operation method - Google Patents

Abstract

The present invention relates to a system for editing / reproducing multimedia and a method of operating the same, and characterized in that the multimedia file is edited / reproduced using the generated information file. To this end, the present invention, a multimedia server, each of which has a plurality of multimedia having a unique URL address is stored, and receives a plurality of multimedia URL address and a specific selection section of the multimedia from the user, respectively, URL address for each multimedia And a local client for generating a multimedia information file in which script information is stored in a script form, a web bulletin board in which the generated multimedia information file is registered as a server bulletin board on the Internet web, and a multimedia information file registered in the web bulletin board. The multimedia player includes a multimedia player that downloads and extracts a multimedia URL address in the downloaded multimedia information file and streams the corresponding multimedia, and selects and plays only the selected section of the multimedia according to the information of the selected section in the multimedia information file.

Description

Multimedia edit / play system and method for operating the same

1 is a diagram illustrating a multimedia editing / playback system according to an exemplary embodiment of the present invention.

2 is a multimedia information file according to an embodiment of the present invention.

3 is a table for describing each tag of the multimedia information file.

4 is a block diagram of an editing application according to an embodiment of the present invention.

5 is a flowchart illustrating a multimedia editing / playback process according to an exemplary embodiment of the present invention.

6 is a diagram illustrating a multimedia editing / playback system to which DRM is applied according to another embodiment of the present invention.

7 is a flowchart illustrating a multimedia editing / playback process to which DRM is applied according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: Local Client 11: Multimedia Player

12: Multimedia Server 13: Web Board

14: license server 40: multimedia information file generation unit

41: multimedia information input unit 42: selection section input unit

43: streaming unit 44: configuration information database

The present invention relates to a system for editing / reproducing multimedia and a method of operating the multimedia, and to generating / editing an information file for the multimedia and to editing / reproducing the multimedia using the same.

Today, people around the world can find information, read and read news, buy or sell news, learn courses, participate in local communities, and much more, freely, both on time and in space. . This is because the Internet supports the connection of many networks around the world.

The Internet connects servers that send information from various networks, and sends information from various web pages around the world using tools such as e-mail and browsers that send and receive text messages. World Wide Web (abbreviated as WWW) for finding, NET NEWS for information exchange and discussion on specific topics, file exchange between server and user's computer for file transfer Enable various services such as File Transfer Protocol (FTP). As a result, the number of Internet users is increasing day by day, and the development of technology to meet the needs of users continues.

Recently, users' satisfaction has increased due to the increase of internet speed, i.e. the transmission bandwidth, which means that the amount of data to be transmitted is increasing. Internet services are now available that allow users to view and listen to multimedia through on-line retrieval of combined video. His representative is a multimedia streaming service. Here, streaming means that multimedia data, such as large audio data or video data (video data), is not downloaded and executed, but is divided into several files for real-time transmission.

In order to listen to or display multimedia of such audio files or video files in a streaming format, various application softwares must be embedded in a client personal computer. In other words, audio streaming / video streaming requires an audio streaming application such as a real audio player or a multimedia streaming application such as a windows media player. Most such streaming applications are multimedia plug-ins that support audio / video streaming in real time and are additional application programs that can operate based on a web browser. Currently, the services that can be supported through the multimedia streaming include a live broadcast service such as sports, news, live concerts, video on demand (VOD), and the like.

In the case of the video on demand service (VOD), there is an advantage that the user can play a specific multimedia, such as movies, dramas, music, anywhere the Internet is connected. In particular, recently, multimedia streamed from the server is edited and stored in a user's personal computer, and later use it. However, there is a limitation in editing the streamed multimedia as described above (for example, section playback, section repeating, section synthesis, etc.) and later using the multimedia.

First, in order for the edited multimedia, which is an edited result of the streamed multimedia, to be played back later, the edited multimedia must be stored in the user's computer. Discs). In particular, when the capacity of the edited multimedia is large, the storage medium purchase cost increases because the storage medium capacity of the computer to store the multimedia should be large.

Second, when the user wants to share the multimedia edited by the user with others as described above, there is a limit in sharing the edited multimedia. In other words, when sharing the multimedia, there is an inconvenience of transmitting the edited multimedia through the Internet.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to propose a method of reproducing the edited multimedia as another multimedia player by sharing a predetermined information file related to the edited multimedia.

In order to achieve the above object, the present invention provides a multimedia server in which a plurality of multimedia having a unique URL address are stored, and a plurality of multimedia URL addresses and a specific selection section of the multimedia are respectively input from a user. A local client for generating a multimedia information file in which a URL address and a section of the selected information are stored in a script form, a web bulletin board in which the generated multimedia information file is registered as a server bulletin board on the Internet web, and the multimedia registered in the web bulletin board. The multimedia player which downloads the information file, extracts the multimedia URL address in the downloaded multimedia information file, streams the corresponding multimedia, and selects and plays only the selected section of the multimedia according to the information of the selected section in the multimedia information file. It includes. The multimedia editing / playback system may further include a license server that performs license authentication of multimedia to which DRM is applied.

In addition, the present invention receives a local client existing on the Internet web, the user receives the URL address of each multimedia and the selection section to be played for each multimedia, the multimedia information file in the form of a script recorded the URL address and selection section A process of generating, the process of registering the generated multimedia information file on a web board which is a server bulletin board on the internet web, and a multimedia player for playing multimedia, downloading the multimedia information file registered on the web board and receiving the URL address. And extracting the selection section, and the multimedia player accessing the extracted URL address to stream corresponding multimedia streams, and then sequentially playing only the selection section.

In addition, when the multimedia to be edited is multimedia with DRM applied, the local client receives a selection section from the user while playing the multimedia after obtaining a license of the multimedia with DRM applied thereto.

In addition, when the multimedia of the URL address extracted from the multimedia player is a multimedia with DRM, after receiving the license of the multimedia with the DRM, it is characterized in that only the selected section is played by receiving the multimedia.

Hereinafter, the detailed description of the preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the reference numerals to the components of the drawings it should be noted that the same reference numerals as possible even if displayed on different drawings. In addition, in describing the present invention, when 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.

1 is a diagram illustrating a multimedia editing / playback system for generating an edited multimedia information file and playing the multimedia using the same according to an embodiment of the present invention.

The local client 10 is a terminal capable of playing / editing a multimedia such as a computer. The local client 10 performs a function of receiving a specific multimedia stream from the multimedia server 12 having the multimedia stored therein using a URL address. In particular, the local client 10 according to the present invention performs a function of editing the multimedia streamed from the multimedia server 12 to generate a multimedia information file.

The multimedia information file refers to a script file in which each multimedia is edited section by time in order to repeat sections or synthesize sections. For example, as shown in [Table 1] below, assuming that the first video, the second video, and the third video having respective URL link addresses are streamed from the multimedia server, the user selects the section. The information on a specific section of each video may be combined and generated as one multimedia information file. For example, if you want to create one multimedia by combining only 10 to 20 seconds of the first video, 30 to 50 seconds of the second video, and 60 to 90 seconds of the third video, the script describes the information of each section. Can be created as a multimedia information file.

TABLE 1

Multimedia object Multimedia Information File First video; htpp: //www.imusicsoft.co.kr/ims/0711/ims0003900 second video; http://www.imusicsoft.co.kr/ims/0712/ims0003900 Third video; http://www.imusicsoft.co.kr/ims/0713/ims0003900 1st video 10 ~ 20 sec. + 2nd video 30 ~ 50 sec. + 3rd video 60 ~ 90 sec. ---> 1st video (10 sec), 2nd video (20 sec) and 3rd video It has the information of a video (30 seconds) as a script.

As a result, the multimedia information file is not a data file of the multimedia itself, but has information in a script form as shown in FIG. The script of the multimedia information file has URL link and selection section start time and end time of the multimedia as a predetermined data object.

Section editing is performed in time intervals instead of frame units, and the multimedia information file has time information (start time and end time) of such sections as edit information. In the multimedia information file of FIG. 2 according to an embodiment of the present invention, necessary information for each tag is scripted. A function description of each tag is illustrated in FIG. 3.

2 and 3, the multimedia information file is tag information, which includes version information, a title of the multimedia information file, a brief description of the multimedia information file, and a representative thumbnail of the multimedia information file. mainthumburl, background music ID, background music title, background music link address (musicurl), multimedia type (cliptype), multimedia unique clip (clipid), multimedia title (cliptitle), episode ID (vodcnt), company name of the editing application (cnttitle), multimedia URL address (clipurl), multimedia thumbnail image URL (thumburl), section start time of each multimedia (clipstarttime), section end time of each multimedia (clipendtime) , Playtime of multimedia, playtime of multimedia, playtime of multimedia, playduration of multimedia, caption Start time (captionstarttime), subtitle playback total time (captiondrration), multimedia video effect ID of (effectid), transition effect ID (transitionid), transition effects applied period (transitionduration) such as it can be seen that the included.

As described above, the local client 10 generates a multimedia information file by selecting a section of the user, and the generated multimedia information file is placed on a web board or the like on the web. The multimedia information file uploaded to the web board 13 is analyzed by another user's multimedia player 11 (for example, a computer, a PMP, a mobile communication terminal, an MP3 player, etc.), and the multimedia is played. That is, the multimedia player 11 downloads the multimedia information file from the web board 13 and extracts the information therein so that the multimedia can be streamed and played.

For example, when the multimedia player 11 wants to play the edited multimedia using the multimedia information file as shown in FIG. 2, the 'clipurl' tag storing the multimedia URL address in the multimedia information file, and the multimedia Each multimedia section can be played in sequence by using a 'clipstarttime' tag recording the start time of the desired playback section and a 'clipendtime' tag recording the end time of the desired playback section of the multimedia. The multimedia player accesses the multimedia server having the URL recorded in the 'clipurl' tag and stream buffers all the videos, and then records the section start time and section end time recorded in the 'clipstarttime' tag and the 'clipendtime' tag. To play only that section.

Therefore, the multimedia player 11 accesses the multimedia server in which the first multimedia video is stored, and outputs the screen as 'buffering' while searching for a start time of a specific section after streaming buffering the first video. From the second multimedia, which is the second multimedia, the streaming video is buffered by finding the time that is started in advance while the previous video is being played, and the second video can be immediately played without displaying 'buffering'.

On the other hand, the local client 10 generates a multimedia information file, which is generated by an editing application in the local client 10. The editing application is an application program that divides a plurality of moving images on a time basis according to a user's selection and edits each section by synthesizing and repeating. The editing application may be installed in a local client as a separate program or may be implemented to operate directly on a web browser in a plug-in manner. Hereinafter, the editing application will be described with the block diagram of FIG. 4.

4 is a block diagram illustrating an internal configuration of an editing application according to an exemplary embodiment of the present invention.

The editing application may include a playback module (eg, a decoding module, a player graphics module, etc.) for playing the streamed multimedia. In the block diagram of FIG. 41, only the selection section input section 42, the streaming section 43, the configuration information DB 44, and the multimedia information file generating section 40 will be described.

The multimedia information input unit 41 is a user interface for receiving description information of the corresponding multimedia from the user. For example, the user may receive a URL address, title (title), brief description text, multimedia representative thumbnail, subtitle text, etc. of the multimedia from the user as the description information of the multimedia. The input description information is stored in the <clipurl>, <title>, <description>, <mainthumburl>, and <caption> tags of the multimedia information file.

The selection section input unit 42 performs a function of selecting a section desired by the user in the entire streamed multimedia. The section selection may be made in units of multimedia frames, but the section selection is made by the user in units of time for convenience of section selection. . For selecting the section, the section selector provides a section selection tool to select a section from the user. The section selection tool may be provided in various ways. For example, a start time and an end time of a selection section may be directly input as text from a user. Alternatively, the playback bar may be adjusted to select a section when the streamed multimedia is played.

The streaming unit 43 is a function unit for receiving and buffering a plurality of multimedia streams to be edited from the multimedia server. The string unit accesses the URL address of the multimedia to be edited in the section input through the selection section input unit and buffers the multimedia. The streamed multimedia are sequentially reproduced to receive the necessary section from the user.

The configuration information database 44 is a database that stores configuration information such as version information, image effects, scene change effects, scene change effect application periods, etc. of the editing application generating the multimedia information file. The configuration information such as the version information, the image effect ID, the unique scene transition effect ID, and the duration of the transition effect is recorded in tags such as <version>, <effectid>, <transitionid>, and <transitionduration> of the multimedia information file. . The configuration information such as the image effect ID, the scene change effect unique ID, and the scene change effect application period except for the version information may be alternately set in the configuration information database according to the user's setting.

The multimedia information file generation unit 40 uses the multimedia information input through the multimedia information input unit, the section information input through the selection section input unit, and the configuration information in the configuration information database. Creates a file. That is, the above information is recorded in each tag in the multimedia information file to generate a multimedia information file in a script form as shown in FIG.

5 is a flowchart illustrating a process of generating and playing back a multimedia information file according to an embodiment of the present invention.

The local client 10 receives a URL address of the multimedia to be edited from the user (S50) and requests a streaming (S51) to each multimedia server 12. After streaming the corresponding multimedia by the streaming request (S52), while receiving the corresponding multimedia in order to receive a selection section to be edited (S53). When the selection section input is successfully completed, the local client 10 generates a multimedia information file as shown in FIG. 2 based on this.

The generated multimedia information file is transmitted to various web boards 13 on the Internet web and registered (S55). The multimedia information file registered in the web board 13 is downloaded by the multimedia player 11 (S56), and the multimedia player 11 analyzes the multimedia information file (S57) to the URL address of the edited multimedia. By requesting the streaming of the multimedia (S58) and receives the multimedia (S59). The selected multimedia sections are sequentially played or repeatedly played (S60) according to the information described in the multimedia information file.

On the other hand, the step of inputting the selection section is required to receive the multimedia stream while playing and receiving the multimedia stream at the same time, but omitting the above steps and directly input the multimedia URL address and the selection section from the user without multimedia streaming to receive the multimedia information file. Can be generated.

On the other hand, the multimedia used in the multimedia editing / playback system of the present invention shown in Figure 1, not only general multimedia without multimedia (multimedia without DRM), but also multimedia to which DRM (Digital Rights Management) is applied ( Hereinafter, the present invention may be applied to the case of 'DRM multimedia'.

Generally, multimedia with DRM is a copyrighted file and cannot be edited. However, in the multimedia editing / playback system of the present invention, editing is possible even in the case of multimedia to which DRM is applied.

For example, when DRM-applied multimedia (DRM multimedia) is stored in the multimedia server 12, the DRM multimedia is used to generate a multimedia information file in the local client 10 so that the multimedia information file is placed on the web board 13. After losing, the DRM is automatically applied when the multimedia player 11 plays the multimedia with this multimedia information file.

Therefore, since the edited video is edited in a form having section information (start time and end time) of DRM multimedia stored in the multimedia server 12 without actually encoding the edited video, the edited multimedia appears to be played after encoding. By reproducing the section information of the DRM multimedia in the server, the edited multimedia is reproduced, and the multimedia after editing can be automatically protected by copyright.

In applying the DRM multimedia file as described above, the multimedia editing / playback system requires a license server 14 as shown in FIG. This is to obtain a license from the license server 14 that performs copyright authentication of the DRM multimedia before the DRM multimedia is streamed from the multimedia server 12. If license acquisition is possible from the multimedia server 12 or within the local client (or multimedia player) itself, then no separate license server is required.

7 is a flowchart illustrating an operation process when DRM-applied multimedia (DRM multimedia) is applied in the multimedia editing / playback system of the present invention.

The local client 10 receives the URL address of the DRM multimedia to be edited from the user (S70), requests a license to the license server 14 that manages the copyright of the DRM multimedia (S71), and passes through a predetermined authentication procedure. Obtain a license of the DRM multimedia (S72).

The local client 10 makes a streaming request (S73) to each multimedia server 12 after obtaining the license. After streaming the corresponding DRM multimedia (S74) in response to the streaming request (S74) receives a selection section to be edited while playing the corresponding DRM multimedia (S75). When the selection section input is successfully completed, the local client 10 generates a multimedia information file as shown in FIG. 2 based on this. The generated multimedia information file is transmitted (S77) and registered (S78) to various web boards 13 on the Internet Web.

As a result, when a license is requested, a license can be obtained through payment to view the entire contents of the multimedia. While editing the entire section of the multimedia, the desired section can be edited and uploaded to the web board 13.

The multimedia information file registered in the web board 13 is downloaded by the multimedia player 11 (S79), and the multimedia player 11 analyzes the multimedia information file (S80) and plays it on the license server 14. A license of the DRM multimedia is requested (S81) to obtain a license (S82).

The multimedia player 11 having obtained the license (S82) requests the streaming of the corresponding DRM multimedia files to the URL address of the edited DRM multimedia (S83) and receives the corresponding DRM multimedia streams (S84). The streams of the selected DRM multimedia are sequentially played or repeatedly played (S85) according to the information described in the multimedia information file.

When the multimedia player 11 requests a license (S81), the multimedia player 11 is limited to obtain a license that can be played only once to prevent illegal play. So every time you want to see it again, you can get a license to play it once and play it the same way.

As a result, through the above processes, even the multimedia file to which the DRM is applied can be generated and edited using the multimedia information file through the multimedia editing / playback system of the present invention.

In the foregoing description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention is not to be determined by the embodiments described above, but will be apparent in the claims as well as equivalent scope.

As described above, the present invention has the effect of sharing the multimedia edited by the user with other users as the information of the edited multimedia instead of the multimedia itself. Therefore, by using the information file without storing the multimedia itself, there is an effect that no separate storage space is required. In addition, there is an advantage that section editing is possible even for a multimedia file to which DRM is applied.

Claims (20)

A multimedia server storing a plurality of multimedia each having a unique URL address; A local client that receives URL addresses of one or more multimedia and selection sections of the multimedia from the user, and stores the URL address and selection section of each multimedia in the form of a script to generate an edited multimedia information file; , A web board on which the generated multimedia information file is registered as a server bulletin board on the Internet web; Download the multimedia information file registered in the web board, extract the multimedia URL address in the downloaded multimedia information file, stream one or more multimedia, and select each multimedia according to the information of the selection section in the multimedia information file. It includes a multimedia player to select and play only the section, And the local client is provided with an editing application driven by a separate program or a plug-in method on a web browser, and generates the multimedia information file from the editing application. The multimedia editing / reproducing system of claim 1, wherein the multimedia editing / reproducing system further comprises a license server for performing license authentication of DRM-applied multimedia. delete The method of claim 1 or 2, wherein the editing application, A multimedia information input unit which receives descriptive information, which is a description of each multimedia to be edited, from a user; A selection section input unit which receives a selection section, which is a section to be played of each multimedia, from a user; A configuration information database storing configuration information used to generate the multimedia information file; Multimedia information file for generating a script-type multimedia information file containing information on the URL address and selection section of each multimedia by using the description information, selection section, and configuration information Multimedia editing / playback system having a. The system of claim 4, wherein the editing application further comprises a streaming unit configured to stream the multimedia selected for editing from a multimedia server. The multimedia editing / playback system of claim 4, wherein the description information includes at least one of multimedia descriptions including a URL address, a title (title), a brief description text, a multimedia representative thumbnail, and a caption text. The multimedia editing / playback system of claim 4, wherein the selection section input unit directly inputs a start time and an end time of the section selected as numerical values. The multimedia editing / playback system according to claim 4, wherein the selection section input unit receives the selection section by adjusting the playback bar of the streamed multimedia. The multimedia editing / reproducing system of claim 4, wherein the configuration information includes at least one of version information of a editing application, a video effect, a scene change effect, and a scene change effect application period. The multimedia editing / reproducing system of claim 4, wherein the configuration information is set differently according to user settings and stored in the configuration information database. The multimedia editing / playback system of claim 1 or 2, wherein the multimedia player outputs a 'buffering' screen to the screen while streaming the first multimedia, which is the first multimedia of the plurality of multimedia streams. The multimedia player of claim 1 or 2, wherein the multimedia player streams and buffers the second multimedia, which is the second multimedia, while the first multimedia, which is the first multimedia, is reproduced from the plurality of multimedia streams. Multimedia editing / playback system, characterized by the ability to play directly without displaying. The multimedia information file of claim 1 or 2, wherein the multimedia information file comprises: version information, a title of the multimedia information file, a brief description of the multimedia information file, and a representative thumbnail of the multimedia information file. ), Background music ID (musicid), background music title (musictitle), background music link address (musicurl), multimedia type (cliptype), multimedia unique clip (clipid), multimedia title (cliptitle), recurring ID (vodcnt) ), Company name of the editing application (cnttitle), multimedia URL address (clipurl), multimedia thumbnail image URL (thumburl), section start time of each multimedia (clipstarttime), section end time of each multimedia (clipendtime), multimedia Play start time of the entire play time, play end time of the full play of the multimedia, play duration of the multimedia, caption, caption start Multimedia editing / playback system comprising at least one of captionstarttime, captiondrration, captiondrration, multimedia effectid, transitional transition ID, and transitional transition duration . A local client existing on the Internet web receives a URL address of one or more multimedia and a selection section to be played in the multimedia, and generates a script-type multimedia information file in which the URL addresses and selection sections are recorded. The first process A second process in which the generated multimedia information file is registered in a web bulletin board which is a server bulletin board on an internet web; The multimedia player for playing the multimedia, the third process of downloading the multimedia information file registered in the web board and extracts the URL address and the selected section, A fourth step in which the multimedia player accesses the extracted URL address and streams one or more multimedia streams, and then plays only a selected section for all URL addresses included in the multimedia information file; Multimedia editing / playback method comprising a. 15. The method of claim 14, wherein the first process receives the multimedia to be edited and plays the multimedia while receiving the selection section from the user. The multimedia information file of claim 14, wherein the multimedia information file includes: version information, a title of the multimedia information file, a brief description of the multimedia information file, a main thumbnail of the multimedia information file, and background music. ID (musicid), background music title (musictitle), background music link address (musicurl), multimedia type (cliptype), multimedia unique clip (clipid), multimedia title (cliptitle), turn ID (vodcnt), editing application Manufacturer's name (cnttitle), URL address of multimedia (clipurl), thumbnail image URL of multimedia (thumburl), section start time of each multimedia (clipstarttime), section end time of each multimedia (clipendtime), start of full multimedia playback Time (playstarttime), multimedia full play end time (playendtime), multimedia full play time (playduration), caption text (caption), caption start time (captionsta) rttime, captiondrration, captiondrration, visual effect ID of the multimedia, transition ID, transition transition, and at least one of transition transitions. 15. The method of claim 14, wherein the fourth process outputs to the screen 'buffering' during the streaming of the first multimedia, which is the first of the plurality of multimedia streams. 15. The method of claim 14, wherein the fourth process comprises streaming buffering of the second multimedia, the second multimedia, while the first multimedia, which is the first multimedia, of the plurality of multimedia streams is played, thereby directly starting from the second multimedia without displaying 'buffering'. Multimedia editing / playback method characterized in that the playable. 16. The method of claim 15, wherein if the multimedia to be edited is multimedia with DRM, the multimedia is played after the license of the multimedia with DRM is obtained. 15. The method of claim 14, wherein if the multimedia of the extracted URL address is a multimedia with DRM, after receiving a license of the multimedia with the DRM, the multimedia is streamed to play only a selected section. How to edit / play multimedia.

Images