CN104349173A - Video repeating method and device - Google Patents

Abstract

The invention proposes a video rereading method and device. The method includes: during the video playing process, detecting that the user has input a repeat instruction, then searching for the subtitle on the current video screen and the start and end times of the subtitle in the subtitle data of the currently played video file; Start and end time, repeat the video clips between the start and end time. The invention can intercept and reread the video being played.

Description

Video repeat method and device

technical field

The invention relates to the field of video technology, in particular to a video rereading method and device. the

Background technique

Subtitles are dialogues, comments, etc. in text versions of audio and video, and can be used in various audio and video occasions, such as movies, TV programs, and video games. When making subtitles, the appearance time of the subtitle text needs to precisely match the appearance time of the audio (such as lines) in the audio and video. Usually, a mark needs to be provided in the subtitle text to mark the start and end positions of a certain text. For electronic media, these markers are generally expressed as time offsets relative to the start time of audio and video. Subtitles exist in the form of pictures (such as VOBSUBs in DVD format, BMP graphic subtitles), SRT files, and SSA files. For SRT and SSA files, each line of subtitles has its time offset when it appears and ends in the video. For example, the following intercepts a part of the SRT file as an example:

00:20:49,601-->00:20:52,267

Elise talking to Lissie Calhoun outside

The phrase "Elise was outside talking to Lissie Calhoun" starts and ends in the video at offsets of "00:20:49,601" and "00:20:52,267", respectively, from the start of the video. the

Audio and video codec refers to the way of converting a video format file into another video format file through a specific compression technology. Because the data bandwidth of the video signal is very high after digitization, usually above 20MB/s, it is difficult for the computer to store and process it. After using the compression technology, the data bandwidth can usually be reduced to 1-10MB/sec, so that the video signal can be stored in the computer and processed accordingly. At present, the most important codec standards in video stream transmission include H.261 and H.263 of ITU, M-JPEG of the Moving Picture Experts Group and MPEG series standards of the International Organization for Standardization Moving Picture Experts Group. Also widely used are Real-Networks' RealVideo, Microsoft's WMV, and Apple's QuickTime. the

Audio and video multiplexing refers to the technology of putting audio, video, metadata, subtitles and other information into a certain container in a certain way, and adding a series of information required for playback, so that the player can play the audio and video. Audio and video demultiplexing refers to demultiplexing the multiplexed data into corresponding audio, video, metadata, subtitles, etc. This technology and audio and video codec technology are the basis of video cutting. the

Database technology is a core technology of information system. It is a method of computer-aided management of data, which studies how to organize and store data, and how to efficiently acquire and process data. It is a technology to process, analyze and understand the data in the database by studying the basic theory and implementation methods of the structure, storage, design, management and application of the database, and using these theories. The object of database technology research and management is data, so the specific content involved in database technology mainly includes: through the unified organization and management of data, the establishment of corresponding databases and data warehouses according to the specified structure; the use of database management systems and data mining systems Design a data management and data mining application system that can realize multiple functions such as adding, modifying, deleting, processing, analyzing, understanding, reporting, and printing data in the database; and use the application management system to finally realize data processing, Analyze and understand. the

At present, there is such a demand. For example, when foreign language learners watch foreign language TV or movies on PCs, Pads or mobile phones, they often find that some sentences in the dialogue or a certain word are worthy of deep learning, but these sentences are flashed on the screen. Fleeting, just by dragging the progress bar, it is difficult to manipulate the player for precise positioning, and it is even more difficult to cut and store conveniently; and for a certain word, learners often hope to get its multiple usage methods and corresponding example sentences , preferably in the form of multimedia, to facilitate the deepening of memory, and create your own multimedia vocabulary. However, the current common playback software cannot do this accurately, conveniently, and quickly, thereby failing to realize this high-efficiency foreign language learning form that combines teaching with entertainment. the

Contents of the invention

The invention provides a video replay method and device, so as to realize the interception and replay of the video being played. the

Technical scheme of the present invention is realized like this:

A video repeat method, the method comprising:

During video playback, if it is detected that the user has input a repeat command, then search for the subtitle on the current video screen and the start and end time of the subtitle in the subtitle data of the currently playing video file;

According to the start and end time of the subtitle, the video segments between the start and end time are re-read. the

After detecting that the user has input the repeat instruction, it further includes:

If it is detected that the user has input the subtitle to be repeated, then in the subtitle data of the currently playing video file, search for the subtitle input by the user and the start and end time of the subtitle, and set the start and end time of the subtitle according to the start and end time of the subtitle , and the video segment between the end moments to repeat. the

Before detecting that the user has entered the repeat instruction, it further includes:

Detect that the user has selected the option on the video player: enable the function of video capture based on subtitles, and determine whether the subtitle data has been correctly loaded into the currently playing video. If not, search for the subtitle data of the current video file and put the subtitle Data is loaded into the current video. the

After repeating the video segment between the start and end moments, it further includes:

It is detected that the user has input the command to stop repeating, exit the repeating state, and continue to play the original video normally. the

After repeating the video segment between the start and end moments, it further includes:

When it is detected that the user has input a saving instruction, the video segment currently being read back is intercepted, and the subtitles of the current video frame and the intercepted video segment are saved in the user video database for subsequent indexing by the user. the

The method further comprises:

During video playback, if it is detected that the user has input a save command with subtitles, then in the subtitle data of the currently playing video file, search for all video clips containing the subtitles input by the user, and combine the subtitles with all the found videos Clips are saved to the user's video database for subsequent indexing by the user. the

A video playback device, the device includes:

Video clip search module: During video playback, if it is detected that the user has input a repeat instruction, then in the subtitle data of the currently played video file, search for the subtitle on the current video screen and the start and end moments of the subtitle, and then The start and end times are sent to the repeat control module;

Repeat control module: according to the start and end time sent by the video segment search module, control the video player to reread the video segment between the start and end time. the

The video clip search module is further used to, if it is detected that the user has input the subtitle to be re-read while the re-reading instruction is input, then in the subtitle data of the currently played video file, search for the subtitle input by the user and the start and end of the subtitle. End time, send the start and end time to the repeat control module. the

The device further includes: a subtitle loading judging module, which is used to detect that the user has selected the option on the video player: open the function of video interception according to the subtitle, and judge whether the subtitle data has been correctly loaded on the currently playing video, If not, find the subtitle data of the current video file, and load the subtitle data to the current video. the

The replay control module is further configured to detect that the user has input a stop replay instruction, and control the video player to exit the replay state and continue to play the original video normally. the

The video segment search module is further used for, in the rereading process, if it is detected that the user has input a preservation instruction, then intercept the currently rereading video segment, and save the subtitles of the current video segment and the intercepted video segment into the user video database , so that users can subsequently index;

Or it is further used, in the video playback process, if it is detected that the user has input a save instruction with subtitles, then in the subtitle data of the currently played video file, search for all video segments that contain the subtitles input by the user, and combine the subtitles with the subtitles. All found video clips are stored in the user's video database for subsequent indexing by the user. the

It can be seen that the present invention can intercept and reread the video being played. the

Description of drawings

Fig. 1 is the flow chart of the video rereading method that the embodiment of the present invention provides;

Fig. 2 is a schematic diagram of the composition of the video repeating device provided by the embodiment of the present invention. the

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. the

Fig. 1 is the flow chart of the video rereading method that the embodiment of the present invention provides, as shown in Fig. 1, its specific steps are as follows:

Step 100: add an option on the video player in advance: open the function of video interception according to subtitles. the

Step 101: At the beginning or during the playback of the video, it is detected that the user selects the option on the video player: enable the function of video interception according to subtitles. the

Step 102: Determine whether the subtitle data has been correctly loaded into the currently playing video, if so, execute step 104; otherwise, execute step 103. the

Here, the subtitle data needs to be in text format, and each subtitle needs to indicate its corresponding start and end time. Currently, subtitle data in SRT and SSA formats meet this requirement. the

Step 103: Find subtitle data corresponding to the current video file in a local designated folder, and load the subtitle data to the current video. the

If the corresponding subtitle data cannot be found locally, you can also query and download the corresponding subtitle data from the network. If you cannot find the corresponding subtitle data from the network, a dialog box will pop up to prompt the user: the function of video interception based on subtitles cannot be used. the

After the subtitle data is loaded to the video, a dialog box can pop up to prompt the user: the function of video capture based on the subtitle has been correctly enabled and can be used normally. the

Step 104: During video playback, when it is detected that the user has clicked the "Repeat" button on the video player interface, the subtitles on the current video screen are used as the default data of the text input box on the video player interface. Find the subtitle of the current video frame and the start and end time of the subtitle in the subtitle data of the video file. the

During video playback, the video player interface needs to display two buttons, "Repeat" and "Save", and a text input box for entering subtitles. the

It should be noted that if the user clicks the "Repeat" button on the video player interface, and the user edits the text input box on the video player interface at the same time, that is, enters a new subtitle in the text input box, then in the current Find the subtitle input by the user and the start and end time of the subtitle in the subtitle data of the video file, and then perform step 105 . the

Step 105: According to the start and end time of the subtitle, reread the video segment between the start and end time, that is, perform repeated playback. the

Step 106: When it is detected that the user has input an instruction to stop repeating, exit the repeating state and continue to play the original video normally. the

In the repeating state, when the user clicks any point on the video player interface except the button, menu or input box, the video player will exit the repeating state and continue to play the original video normally. the

In practical applications, during video playback, the user can also activate the text input box on the video player interface at any time, edit the subtitles to be searched in the text box, and click the "Save" button after editing, the current Search and intercept all video clips containing subtitles entered by the user in the video file, and save the subtitles and all the clipped video clips in the user video database. After that, the user can directly index and play the corresponding video clips based on the subtitles . the

Or, if the user clicks the "Save" button (the text input box is not edited) during the rereading of the video clip, the video clip currently being replayed will be intercepted, and the subtitles in the current text input box and the intercepted video clip will be saved into the user's video database, and then the user can directly index and play the corresponding video segment according to the subtitle. the

Fig. 2 is the composition schematic diagram of the video rereading device that the embodiment of the present invention provides, as shown in Fig. 2, it mainly comprises: video segment search module 21 and rereading module 22, wherein:

Video clip search module 21: in the video playback process, detect that the user has input a rereading instruction, then in the subtitle data of the video file currently played, search for the subtitle on the current video screen and the start and end moments of the subtitle, and The start and end times are sent to the repeat control module 22 . the

Replay control module 22: according to the start and end time sent by the video segment search module 21, control the video player to reread the video segments between the start and end time. the

The video segment search module 21 is further used for, if detecting that the user inputs the subtitle to be reread while inputting the reread instruction, then in the subtitle data of the video file currently played, search for the subtitle input by the user and the beginning and end of the subtitle time, send the start and end time to the repeat control module 22. the

In practical applications, the device shown in Figure 2 may further include: a subtitle loading judging module, which is used to determine whether the subtitle data has Correctly load to the currently playing video, if not, find the subtitle data of the current video file, and load the subtitle data to the current video. the

The replay control module 22 is further used to detect that the user has input a stop replay instruction, and control the video player to exit the replay state and continue to play the original video normally. the

The video segment search module 21 is further used for, in the repeating process, if detect that the user has input preservation instruction, then intercept the video segment currently being repeated, the subtitle of current video segment and the video segment of interception are saved in the user's video database, for subsequent indexing by users. the

The video segment search module 21 is further used for, in the video playing process, if detect that the user has input the preservation instruction that carries subtitle, then in the subtitle data of the video file of current play, search all video segments that comprise the subtitle of user input, Save the subtitle and all found video clips in the user video database for subsequent indexing by the user. the

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection. the

Claims (11)

1. A method for repeating video, characterized in that the method comprises: During video playback, if it is detected that the user has input a repeat instruction, then in the subtitle data of the currently played video file, search for the subtitle on the current video screen and the start and end times of the subtitle; According to the start and end time of the subtitle, the video segments between the start and end time are re-read. 2. The method according to claim 1, further comprising: If it is detected that the user has input the subtitle to be repeated, then in the subtitle data of the currently playing video file, search for the subtitle input by the user and the start and end time of the subtitle, and set the start and end time of the subtitle according to the start and end time of the subtitle , and the video segment between the end moments to repeat. 3. The method according to claim 1, further comprising: Detect that the user has selected the option on the video player: enable the function of video capture based on subtitles, and determine whether the subtitle data has been correctly loaded into the currently playing video. If not, search for the subtitle data of the current video file and put the subtitle Data is loaded into the current video. 4. The method according to claim 1, further comprising: It is detected that the user has input the command to stop repeating, exit the repeating state, and continue to play the original video normally. 5. The method according to claim 1, further comprising: When it is detected that the user has input a saving instruction, the video segment currently being read back is intercepted, and the subtitles of the current video frame and the intercepted video segment are saved in the user video database for subsequent indexing by the user. 6. The method of claim 1, further comprising: During video playback, if it is detected that the user has input a save command with subtitles, then in the subtitle data of the currently playing video file, search for all video clips containing the subtitles input by the user, and combine the subtitles with all the found videos Clips are saved to the user's video database for subsequent indexing by the user. 7. A video repeating device, characterized in that the device comprises: Video segment search module: in the process of video playback, it is detected that the user has input a repeat instruction, then in the subtitle data of the currently played video file, search for the subtitle on the current video screen and the start and end moments of the subtitle, and set the The start and end times are sent to the repeat control module; Repeat control module: according to the start and end time sent by the video segment search module, control the video player to reread the video segment between the start and end time. 8. The device according to claim 7, wherein the video segment search module is further configured to, if it is detected that the user inputs the subtitle to be re-read while inputting the re-read instruction, then the subtitle of the currently played video file In the data, the subtitle input by the user and the start and end time of the subtitle are searched, and the start and end time are sent to the repeat control module. 9. The device according to claim 7, characterized in that, the device further comprises: a subtitle loading judging module, which is used to detect that the user has selected the option on the video player: open the function of video interception according to the subtitle, Determine whether the subtitle data has been correctly loaded on the currently playing video, if not, search for the subtitle data of the current video file, and load the subtitle data to the current video. 10. The device according to claim 7, wherein the repeating control module is further configured to detect that the user has input an instruction to stop repeating, and control the video player to exit the repeating state and continue to play the original video normally. 11. The device according to claim 7, wherein the video segment search module is further configured to, during the rereading process, if it is detected that the user has input a save instruction, then intercept the currently rereading video segment, and save the current The subtitles of the video clips and the intercepted video clips are saved in the user's video database for subsequent indexing by the user; Or it is further used, in the video playback process, if it is detected that the user has input a save instruction with subtitles, then in the subtitle data of the currently played video file, search for all video segments that contain the subtitles input by the user, and combine the subtitles with the subtitles. All found video clips are stored in the user's video database for subsequent indexing by the user.