KR100859089B1 - Apparatus for checking caption file - Google Patents

Abstract

The present invention relates to a caption file inspecting apparatus, comprising: a pickup unit for reading a video file and a caption file from a storage medium; a DSP for digital signal processing the video file and a caption file read by the pickup unit; Subtitle checker receives the subtitle file and checks the header part and the body part sequentially and if there is an error, the subtitle checking part automatically corrects the part, a decoder for decoding the digital signal processed video file, and video data of the decoded video file. And a video signal processing unit for synthesizing the corrected subtitle file data and outputting the data, and applying the multimedia file player to check the error of the subtitle file and automatically correcting an error portion of the subtitle file. To prevent subtitles from appearing on the screen or playback itself There are advantages to.

Divix Player, Subtitles, Header, Sync, Subtitle Length

Description

Subtitle file checking device {APPARATUS FOR CHECKING CAPTION FILE}

1 is a block diagram of a multimedia file player to which a caption file inspecting apparatus according to the present invention is applied;

2 is a flowchart illustrating a caption file checking process according to the present invention;

<Description of the code | symbol about the principal part of drawing>

1 optical disc 110 pickup section

120: DSP 130: decoder

140: signal processor 150: CPU

160: caption checker 161: header checker

162: sync checker 163: subtitle length checker

170: correction subtitle storage unit 180: storage medium (HDD)

190: key input unit

The present invention relates to a caption file inspecting apparatus, and more particularly, to a caption file inspecting apparatus for inspecting and correcting an error of a caption file in a multimedia file player.

In recent years, as a format of a multimedia file, DivX video and video files have been widely distributed through networks such as the Internet. Divix player, which is a multimedia file player that plays such Divx video video files, decodes video data of video files to MPEG4 and decodes audio data to MP3, unlike DVD video files based on MPEG-2 method. You can play video files with the same high quality and sound quality.

Such a Divix player loads basic information such as resolution, codec and bit rate from the file when selecting a video file of a DivX video recorded on an optical disc, for example, a CD or a DVD. Then, it recognizes whether the subtitle file has the same name as the DivX video and loads it to check the subtitle language. After checking the information of the DivX video file and the subtitle file, the video data is decoded to MPEG4 and the audio data to MP3 from the DivX video file and the decoded video data and the subtitle file are combined together with the decoded audio data. Output

However, if there is an error in the subtitle file itself, the subtitle may be broken on the screen or even the subtitle file may not be reproduced and thus the user may not be able to see the subtitle. For example, when the subtitles are out of sync or the head information is strange, the subtitles may not be reproduced or broken on the reproduction screen.

However, most users do not have a good understanding of the subtitle file format (SUB, SRT, TAX, SMI, etc.), so it is difficult to directly correct the error of the subtitle file. There was a problem giving up the playback.

SUMMARY OF THE INVENTION The present invention has been proposed to solve such a conventional problem, and the object of the present invention is to provide a caption file inspection apparatus which is applied to a multimedia file player and automatically corrects an error portion of a caption file after checking an error of the caption file. have.

In order to realize the above object, the present invention is a subtitle file inspection apparatus applied to a multimedia file player to inspect and correct a subtitle file, and receives a subtitle file from the multimedia file player and sequentially inspects a header part and a body part. And a caption checking unit including a caption checking unit correcting a corresponding part in case of an error, and a corrected caption storing unit storing a caption file corrected by the caption checking unit.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. Through this embodiment, it is possible to better understand the objects, features and advantages of the present invention. However, the present invention is not limited to these examples.

1 is a block diagram of a multimedia file player to which a caption file inspection apparatus according to the present invention is applied.

As shown in FIG. 1, the multimedia file player to which the caption file inspection apparatus according to the present invention is applied includes a pickup unit 110, a DSP 120, a decoder 130, a signal processor 140, and a CPU. 150, a caption checking unit 160, a corrected caption storage unit 170, a storage medium 180, a key input unit 190, and the like.

The pickup unit 110 reads the Divix video file and the subtitle file recorded on the optical disc 1 and transfers them to the DSP 120.

The DSP 120 digitally processes the Divix video file and the subtitle file transferred from the pickup unit 110 and transmits the digital signal to the decoder 130.

The decoder 130 decodes the video data from the DivX video file of the DSP 120 using a decompression technique such as MPEG4, restores the original video data, and then transfers the video data to the signal processor 140. The audio data is decoded from the DivX video file of the DSP 120 using a decompression technique such as MP3, and then restored to the original audio data, and then transmitted to the signal processor 140.

The signal processor 140 processes the video data decoded by the decoder 130, synthesizes the video data and the subtitle file data, outputs the synthesized video data to a display device such as a TV, and decodes the audio data decoded by the decoder 130. Signal is processed and output to an output device such as a speaker.

To control the operation of the Divix playback device, the CPU 150 reads or stores the Divix video file and the subtitle file recorded on the optical disc 1 in the pickup unit 110 when the Divix playback key is input from the key input unit 190. Reads the Divix video file and the subtitle file from the medium 180, digitally processes the DivX video file and the subtitle file through the DSP 120, and converts the video data from the DivX video file through the decoder 130 such as MPEG4. The audio data is decoded by the decompression technique and decompressed to the original video data while the audio data is decoded by the decompression technique such as MP3 and then restored to the original audio data. In this case, the decoded video data and the subtitle file data are synthesized through the signal processor 140 and output.

In addition, when the playback of the video file is selected or the subtitle check is selected through the key input unit 190, the CPU 150 may notify the subtitle inspection unit 160 about the subtitle file read from the optical disc 1 or the storage medium 180. Request check and error correction.

When the error checking and error correction is requested from the CPU 150, the caption checking unit 160 checks whether there is an error with respect to the caption file read from the optical disc 1 or the storage medium 180, and corrects any errors if any. The caption is stored in the corrected caption storage unit 170.

The header inspecting unit 161 of the caption checking unit 160 analyzes the contents of the caption file to check whether there is an error in the header portion and corrects any errors, and the sync inspecting unit 162 analyzes the contents of the caption file to analyze the contents of the caption file. After checking the sink command to check whether there is an error, and correcting an error, the subtitle length checker 163 analyzes the contents of the subtitle file to check the subtitle length in the body part so that all lines do not exceed the preset threshold. Adjust

The key input unit 190 receives a key signal received from a key button or a remote controller and provides it to the CPU 150.

The storage medium 180 is a hard disk (HDD) for storing a DivX video file and a subtitle file, and delivers the video file and the subtitle file to the DSP 120 under the control of the CPU 150 when the DivX video file is played. do.

Referring to the flowchart of FIG. 2, the subtitle file inspection process according to the present invention among the operation processes of the multimedia file player configured as described above is as follows.

First, when a user selects a video file through the key input unit 190 (S201) and then selects a file play or subtitle check (S203), the CPU 150 transmits a subtitle file associated with the corresponding video file to the subtitle inspector 160. Ask for inspection. In general, a subtitle file associated with a video file refers to a subtitle file having the same file name.

Then, the subtitle checking unit 160 receives the subtitle file read from the optical disc 1 through the DSP 120 or the subtitle file from the HDD 180, and sequentially checks the header part and the body part and there is an error. Automatically corrects that part.

Here, the header checker 161 of the caption checker 160 analyzes the contents of the caption file and checks whether there is an error in the header portion, and corrects any errors, and the sync checker 162 analyzes the content of the caption file. After checking whether there is an error by checking the sync command in the body part and correcting the error, the subtitle length checker 163 analyzes the contents of the subtitle file and checks the subtitle length in the body part so that all lines have a preset threshold. Adjust it so that it is not over.

In order to understand the caption inspection and correction process by the caption inspection unit 160, a process of inspecting and correcting a SAMI file among subtitle file formats will be described.

The following is an example of a SAMI subtitle file.

<SAMI>

<HEAD>

<Title> Jennifer subtitles </ Title>

<STYLE TYPE = "text / css">

<!-

P {margin-left: 8pt; margin-right: 8pt; margin-bottom: 2pt; margin-top: 2pt;

   text-align: center; font-size: 20pt; font-family: arial, sans-serif;

   font-weight: normal; color: white;}

.KRCC {Name: English; lang: en-EN; SAMIType: CC;}

#STDPrn {Name: Standard Print;}

#LargePrn {Name: Large Print; font-size: 20pt;}

#SmallPrn {Name: Small Print; font-size: 10pt;}

->

</ STYLE>

</ HEAD>

<BODY>

<SYNC Start = 1167> <P Class = KRCC> Hi Heluo Hi

<SYNC Start = 5604> <P Class = KRCC> &nbsp;

<SYNC Start = 96696> <P Class = KRCC> <br> <br> <br> <br> <br>

<SYNC Start = 99563> <P Class = KRCC> &nbsp;

.

. (Middle omitted)

.

<SYNC Start = 119219> <P Class = KRCC> Porong ~

<SYNC Start = 121779> <P Class = KRCC> &nbsp;

</ BODY>

</ SAMI>

First, the header inspecting unit 161 inspects the header portion starting with the command "<HEAD>" and ending with the command "</ HEAD>" (S205), and the necessary commands (<HEAD>, <Title>, </ Title). >, <STYLE>, </ STYLE>, </ HEAD>) are all checked first. If all the commands exist, it is determined to be normal (S207). If any one command does not exist, it is not determined to be normal, and a necessary command is inserted at the corresponding position to correct the caption header part (S209). For example, if the command "<HEAD>" does not exist, the command "<HEAD>" is inserted before the command "<Title>". If the command "</ STYLE>" does not exist, it appears before the command "</ HEAD>". Insert the command "</ STYLE>".

Next, the sink check unit 162 extracts the command "<SYNC>" from the body portion and checks whether the sink start times included therein are sequentially arranged (S211). According to the above example, if the sync start times are sequentially arranged as "1167, 5604, 96696, 99563 ...", it is determined to be normal (S213). If any one of these values does not satisfy the sequential characteristics, it is not determined to be normal. A correction is made to the average value of the immediately preceding sink start time and the next sink start time (S215).

The caption length checker 163 analyzes the contents of the caption file to check the caption length in the body part (S217) and adjusts the caption length such that all lines do not exceed the preset threshold (S219). This is to prevent the case where the subtitle is too long and is not displayed as one line. To this end, if it exceeds the setting byte, which is the preset threshold, it is divided into two lines by dividing it into two lines, or by changing it into three lines by dividing it into three lines. If the setting byte is crossed after the dividing, a new sink may be added to the body part. In this case, the added sink start time is determined as an average value of the immediately preceding sink start time and the next sink start time.

The corrected subtitles are stored in the corrected subtitle storage unit 170 and transferred to the decoder 130. Thus, the subtitles are reproduced or the subtitle check is terminated according to an operation mode selected by the user (S223). .

Referring to the caption reproduction process, the decoder 130 decodes the video data from the DivX video file of the DSP 120 by a decompression technique such as MPEG4, restores the original video data, and then transfers the video data to the signal processor 140. The audio data is decoded by a decompression technique such as MP3 from the DivX video file of the DSP 120 and then restored to the original audio data, and then transmitted to the signal processor 140.

The signal processor 140 processes the video data decoded by the decoder 130, synthesizes the video data and the caption file data provided from the caption checking unit 160, and outputs them to a display device such as a TV. In step 130, the decoded audio data is processed and output to the output device such as a speaker.

It has been described so far limited to one embodiment of the present invention, it is obvious that the technology of the present invention can be easily modified by those skilled in the art. Such modified embodiments should be included in the technical spirit described in the claims of the present invention.

As described above, the present invention is applied to a multimedia file player and automatically corrects an error portion of a subtitle file after checking an error of the subtitle file, so that the subtitle is broken on the screen due to an error of the subtitle file or the reproduction itself is impossible. It is effective to prevent that.

Claims (8)

Apparatus for inspecting and correcting subtitle files applied to a multimedia file player, A subtitle checking unit which receives a subtitle file from the multimedia file player and sequentially checks a header part and a body part and corrects the corresponding part in case of an error; A corrected caption storage unit for storing a caption file corrected by the caption checking unit Subtitle file inspection device comprising a. The method of claim 1, The caption checker analyzes the contents of the caption file to check whether there is an error in the header portion and then corrects the error if there is an error. Subtitle file inspection device comprising a. The method of claim 2, The header checker checks whether all the necessary commands exist in the header part, and determines that all commands exist if they exist. If not, the header checker inserts the necessary commands into a corresponding position. Subtitle file inspection device. The method of claim 1, The caption checker analyzes the contents of the caption file to check the sync command in the body part to check whether there is an error, and then corrects the error if there is an error. Subtitle file inspection device comprising a. The method of claim 4, wherein The sync checker extracts the sync command from the body part and checks whether sync start times included therein are sequentially arranged, and determines that the sync command is normal if the sync check time is sequentially arranged. Does not adjust the sync start time to Subtitle file inspection device. The method of claim 1, The caption inspection unit analyzes the contents of the caption file to check the caption length in the body part and adjusts the caption length so that all lines do not exceed a preset threshold. Subtitle file inspection device comprising a. The method of claim 6, The subtitle length checker may be configured to check the subtitle length in the body part and to divide it into two lines by dividing it into two lines or by dividing it into three lines by dividing the set byte, which is a preset threshold. Subtitle file inspection device. The method of claim 7, wherein The subtitle length checker may determine the average value of the immediately previous sink start time and the next sink start time as the sync start time when the subtitle length exceeds the set byte after the two or three divisions, and add a new sink to the body part. To add Subtitle file inspection device.

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