KR100700246B1 - Moving picture caption edit method - Google Patents

Abstract

The present invention provides a video subtitle editing method that enables a DVD recorder to edit a subtitle portion of a subtitle file connected to the video in real time while playing a video file recorded on an optical disc. To this end, the present invention provides a video recording / reproducing method of reproducing a video recorded on a recording medium and subtitle data of the video, wherein the subtitle is reproduced and output while the video is being reproduced. And optionally editing the caption portion, and editing and recording the caption edit portion of the arbitrarily edited specific caption section in the caption file of the recording medium.

Optical disc, movie, playback, subtitles, editing

Description

How to edit video subtitles {MOVING PICTURE CAPTION EDIT METHOD}

1 is a diagram illustrating a configuration of a DVD recorder to which a video caption editing method according to the present invention is applied;

2 is a view showing a state of editing a subtitle while playing a moving picture recorded on the DVD according to the present invention;

3 is a view showing a state of storing subtitle information edited in accordance with the present invention in a memory;

4 is a diagram illustrating a state of editing and recording a subtitle of a DVD based on the edit subtitle information stored in a memory according to the present invention;

5 is a flowchart illustrating an operation of a video caption editing method according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: DVD (DVD), 12: optical pickup,

14: playback and recording system, 16: key input,

18: memory, 20: microcomputer,

22: OSD generation unit.

The present invention relates to a video subtitle editing method, and more particularly, to a video subtitle editing method for efficiently editing a subtitle of a video recorded on a rewritable recording medium such as a DVD.

As is well known, a disc recorder capable of recording and playing back high-definition video data and high-quality audio data for a long time, for example, a DVD recorder, has been developed and commercialized. In the DVD-Recorder, The audio and video signals input from the video signal are encoded into audio and video data, for example MPEG-2 data, which conforms to the DVD format.

The encoded audio and video data is recorded in a data area of a disc in one program unit, and navigation information for controlling reproduction of the program is generated. Recording management is carried out in the navigation information area of the disc and the like.

On the other hand, as the demand for multimedia information such as video over the internet has increased rapidly, various multimedia compression formats such as MPEG-4, DivX (Digital Video Express), AC3, etc. have been developed. It is possible to compress and play back through a personal computer while maintaining high picture quality.

In addition, if a video file coded in a multimedia compression format such as MPEG-4, DivX, AC3, etc. is a video recorded in a foreign language, for example, a subtitle file such as idx, sub, srt, smi, etc. is separately produced and the video is recorded. The player can be played together.

Here, in the case of DVD, it is being developed as an integrated video recording storage medium capable of recording not only audio / video data encoded in MPEG-2 format but also video files of various multimedia compression formats. The DVD recorder that records and plays DVDs also has a codec that supports various multimedia compression formats. Therefore, it is not necessary to record and play a video file and its subtitle file produced in such multimedia compression format on a large capacity DVD. It is possible.

In addition, in the case of a subtitle file that supports subtitles of a video file, there was a need for a dedicated multimedia playback program that recognizes the subtitle. However, recently, a function of recognizing a subtitle by a codec itself and playing it on a screen together with a video is provided. Since the DVD recorder has been developed, the subtitles can be reproduced using only the codec without the multimedia playback program dedicated to the subtitles.

Meanwhile, in the case of a subtitle file associated with such a video file, a user can arbitrarily edit an incorrect expression or misinterpretation of a subtitle by using a separate subtitle file editing program. If the rewritable DVD is recorded, the subtitle file contained in the rewritable DVD can be arbitrarily edited by the corresponding subtitle editing program on a personal computer equipped with a DVD recording / reproducing drive.

However, the DVD recorder, which can record / play back video files in various multimedia compression formats such as MPEG-4, DivX, etc. together with the subtitle files, does not have the function to arbitrarily edit the subtitle files on the set itself. Inevitably, it is inconvenient to edit the contents of the subtitle file by executing a separate subtitle editing program on a personal computer equipped with a DVD recording / playback drive.

Furthermore, if you want to edit the contents of the subtitle file linked to the video file, you need to retrieve only the subtitle file regardless of whether the video is played or not, so you have to find the part you want to edit for a long time, There is a problem that it is extremely difficult to accurately edit the contents in real time.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to allow a DVD recorder to edit a subtitle portion of a subtitle file connected to the video in real time while playing a video file recorded on an optical disc. It is to provide a video subtitle editing method.

Another object of the present invention is to provide a video subtitle editing method that enables real-time editing of subtitles being played in connection with the video file while playing the video file.

In order to achieve the above object, according to the present invention, in a video recording / playback method for playing back a video recorded on a recording medium and the caption data of the video, in the state in which the caption is reproduced and output, And randomly editing a subtitle portion of a specific subtitle section simultaneously with reproduction, and editing and recording the subtitle edit portion of the randomly edited specific subtitle section into a subtitle file of the recording medium. To provide.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 1 is a diagram illustrating a configuration of a DVD recorder to which a video caption editing method according to the present invention is applied.

As shown in FIG. 1, a video subtitle editing apparatus of a DVD recorder according to the present invention records external input data on an optical disc 10 such as a DVD ± RW capable of being repeatedly recorded or data contained on the optical disc 10. Encoding and modulating external input data from an external input source such as a tuner into a signal suitable for recording, and generating and recording navigation information for controlling reproduction of the recorded data; In addition, the recording / reproducing system 14 performing decoding and demodulation functions for reproducing the recording data read out from the optical disc 10, and the real time of the subtitle data for the moving image during reproduction of the moving image recorded on the optical disc 10. Key input unit 16 which performs user key input for editing, and subtitle data of the video while playing the video of the optical disc 10. Memory 18 for storing the edited subtitle information and the subtitle position information of the part edited in real time in the real time, and controlling the recording / reproducing operation of the recording / reproducing system 14, and controlling the user's operation of the key input unit 16. The microcomputer 20 performs control to edit and record the caption portion edited in real time with respect to the caption data of the video on the optical disc 10, and displays caption data for the video played back from the optical disc 10. And an OSD generator 22 for generating graphics and characters for displaying real-time subtitle editing status for the subtitle data.

Video data recorded on the optical disc 10 corresponds to a video file such as "* .AVI", "* .MPG", "* .MPEG" having a multimedia compression format such as MPEG-4 or DivX, and the like. Subtitle data such as "* .SMI" and "* .SRT" are connected and recorded in the movie file.

The key input unit 16 is provided with a function key for inputting characters of Korean, English, and numerals to enable arbitrary editing of video subtitles, and moves a cursor to move to a desired editing part in a specific subtitle section. Equipped with a function key for movement control.

When the microcomputer 20 plays a video file of the optical disc 10 together with the caption data, and there is a caption editing input in a specific caption playback section by the key input unit 16, the video playback and captions are performed. The output is paused and the subtitle editing mode is executed to arbitrarily edit a part of the subtitle paused by user operation by the corresponding key input unit 16.

The text information of the caption arbitrarily edited by the key input unit 16 is stored in the memory 18 together with the video playback position information of the edited caption, and then when the video playback of the optical disc 10 ends. Finally, the optical disc 10 is recorded and edited.

That is, when a caption editing command is input in a specific section by the key input unit 16 while outputting caption data associated with the video on the screen while playing the motion picture file of the optical disc 10, it is illustrated in FIG. As described above, the subtitle editing mode is executed while the video is paused, and the subtitle editing section 32 is generated on the screen separately from the atomic film display section 30, thereby moving the cursor by the key operation of the key input section 16. FIG. The operation will change the subtitles arbitrarily at the subtitle positions of the desired editing portion.

When a specific subtitle section is edited by a user input of the key input unit 16, the edited subtitle information is stored in the memory 18 together with the playback position information of the corresponding video as illustrated in FIG. 3, and the optical disc 10 When the moving picture is finished, the recording position of the subtitle file is found based on the moving picture reproduction position information stored in the memory 18, and the edited and recorded subtitle information is edited.

As illustrated in FIG. 4, in the subtitle file recorded on the optical disc 10, sync (SYNC) information on the playback position of the corresponding video is recorded for each section of the subtitle text. The sync structure of the corresponding edited portion of the subtitle file is found based on the video reproduction position information of the edited subtitle portion, and the subtitle corresponding to the synced portion is edited and recorded.

Next, Fig. 5 is a flowchart for explaining the operation of the video caption editing method according to the present invention.

Hereinafter, the flowchart according to the embodiment of the present invention shown in FIG. 5 will be described in detail in parallel with the operation of the apparatus of FIG. 1.

First, while playing a moving picture file recorded on the optical disc 10, and playing a subtitle file (e.g., * .SMI) associated with the moving picture (step S10), the microcomputer 20 enters the key input unit ( It is determined whether or not editing of a specific subtitle section is executed by the key input of step 16) (step S11).

In the determination result, when it is determined that the editing of the specific subtitle section is being executed by the key input of the key input unit 16, the microcomputer 20 controls the optical pickup 12 and the recording / reproducing system 14 A specific section of the video being played is paused, and the caption editing mode is executed to allow the user to arbitrarily edit the specific caption section through the key input of the key input unit 16 (step S12).

In this state, it is judged whether or not the editing of the subtitle is completed (step S13), and when the user's arbitrary editing for the specific subtitle section is completed, the edited subtitle information and the video playback position information corresponding to the editing position are displayed. It stores in the memory 18 and plays back the paused video again (step S14).

On the other hand, if the function input of the key input unit 16 for editing a specific subtitle is no longer made in step S11, and there is a function input for ending the playback of the video (YES in step S15), the memory ( 18, the editing position of the subtitle file recorded on the optical disc 10 is searched based on the video reproduction position information of the edited subtitle stored in step S16, corresponding to the video reproduction position information. The sync structure of the subtitle file is found and the subtitle file of the optical disc 10 is edited and recorded based on the text of the subtitle information edited and stored in the memory 18 (step S17).

Finally, the microcomputer 20 determines whether the editing of the subtitles is finished, and when it is determined that the editing of the subtitles is finished (YES in step S18), the microcomputer 20 enters the standby state.

On the other hand, the present invention is not limited to the above-described typical preferred embodiment, it can be carried out in various ways without departing from the gist of the present invention various modifications, changes, substitutions or additions in the art Anyone who has this can easily understand it. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described above, according to the present invention, while playing a video file having a multimedia compression format such as MPEG4, DIVX, etc. recorded on an optical disc, and a subtitle file connected to the video, a specific subtitle section of the corresponding subtitle file is played in the video playback state. As the real-time editing can be performed, the subtitles can be edited in real time in preparation for the playback contents of the video, and the subtitles to be edited can be edited quickly and accurately.

Claims (6)

A video recording / reproducing method for reproducing a video recorded on a recording medium and subtitle data of the video, A first step of pausing playback of a corresponding video when a video signal and key signals for caption editing are input when the caption data of the video is played; A second step of executing a caption editing mode and arbitrarily editing a specific caption section by a user's key input; A third step of temporarily storing subtitle edit information of the edited specific subtitle section in a memory; And a fourth step of editing and recording the subtitle editing portion of the specific subtitle section stored in the memory in the corresponding subtitle file of the recording medium in the third step. delete delete The method of claim 1, And in the third step, the subtitle editing information and the moving picture reproduction position information corresponding to the edited subtitle are stored together in the memory. The method according to claim 1 or 4, The fourth step may include: finding a sync (SYNC) structure of the caption file of the recording medium corresponding to the moving picture reproduction position information stored in the separate memory; And editing and recording the caption text recorded in the sink portion of the caption file corresponding to the video reproduction position information based on the caption editing information stored in the separate memory. The method of claim 5, In the fourth step, recording of the edited subtitle portion on the recording medium is controlled to be executed after the reproduction of the video ends.

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