TWI784942B - Method and device for capturing video in playback - Google Patents

Abstract

The invention discloses a method and device for capturing a video being played, which is used to capture a video file being played. The method for capturing a video being played receives a user's command to capture a video and selects a picture of the video to be captured. According to the video image parameter selected by the user, the video image corresponding to the video image parameter is collected and cached, and finally the user’s recording completion instruction is received, and the cached video image is stored as a video file. The device of the invention comprises a film image parameter selection module, a film image acquisition module and a film image preservation module. The method and device of the present invention can flexibly extract video clips from the video files being played without affecting normal playback. During the acquisition process, the video image parameters and the time to start acquisition can be adjusted, and the video image parameters can be fixed. The proportion of the image remains unchanged for subsequent playback.

Description

Method and device for capturing video in playback

The invention belongs to the technical field of video image processing, and in particular relates to a method and device for capturing a video being played.

With the popularity of the Internet and smart terminals, the dissemination of video and audio is more convenient. Watching and disseminating video and audio files through computers and smart terminals has become a part of people's daily life. For the video being played, sometimes the user wants to capture and save it for viewing, saving and sharing.

At present, if a user wants to retrieve a video file that is being played, he often needs to download the video file to the local, and then call the video processing software to retrieve it. However, downloading a video file locally requires bandwidth, and downloading the entire video file for access is a waste of time and resources.

If the video file being played is captured, the screenshot can only be taken through third-party software, and what is obtained is a still picture, and continuous video clips cannot be obtained.

Apparently, the prior art still cannot satisfy the user's demand for extracting video clips from the video files being played anytime and anywhere.

The purpose of the present invention is to provide a method and device for capturing a video being played, so as to solve the problem that the existing technology cannot extract video clips from the video file being played, and provide users with a more convenient experience.

In order to achieve the above object, the technical solution of the present invention is as follows: a method for retrieving a video being played is used for retrieving a video file being played. Select the video image parameters to be captured; start to capture the video images corresponding to the video image parameters according to the video image parameters selected by the user for caching; receive the user's recording completion instruction, and store the cached video images as a video file.

Further, before receiving the user's command to capture the video, the method for capturing the video being played further includes: receiving the user's operation command, popping up a video capture operation menu in the current screen window; Select the command to fetch video.

Wherein, after receiving the user's operation instruction, it also includes: identifying the current screen window; only when the current screen window is a video playback window, pops up a video capture operation menu.

Further, after receiving the user's command to retrieve the video, the method for retrieving the playing video further includes: A video capture operation window is superimposed on the surface of the current video playback screen window. The video capture operation window includes a video recording time bar at the top of the screen. The video recording time bar will display the remaining time of the captured video file being played. Time period and action button.

Wherein, when the video recording time bar selects the video image parameters to be captured, the operation button includes a start recording button. After selecting the video image parameters to be captured, click the start recording button to start capturing the corresponding video image parameters. The movie image of the file is cached.

Wherein, when the movie recording time bar collects the movie image corresponding to the movie image parameters and caches it, the operation buttons include a recording completion button, a recording cancel button, and a movie saving button, which are respectively used for recording completion confirmation and recording cancellation confirmation and Save the movie to confirm the operation.

Wherein, the video capture operation window also includes: the time node when the video is actually played and the time node when the video starts to be captured. The method for capturing the playing video further includes: receiving a user's instruction for adjusting the start time node of capture, and starting capture from the adjusted start time node of capture.

The adjusted starting time node of acquisition is earlier than the actual playing time node of the movie.

Further, the selection of the video image parameters to be captured includes: selecting a video capture area on the video playback screen window, determining the video image parameters according to the selected video capture area, and the video image parameters include the image position One or more of , image size, or image scale.

Further, control frames are also set around the capture frame of the video capture area. system point.

Further, when the video capture area is selected on the video playback screen window, the cursor used for selecting the video capture area also has the coordinates or/and image ratio of the screen position where the cursor is located.

The method for retrieving the playing movie of the present invention further includes: while collecting the movie image corresponding to the movie image parameters for buffering, also collecting the audio data corresponding to the current movie image for buffering.

The method for capturing a video in playback according to the present invention, when starting to cache the video image corresponding to the video image parameter, further includes: receiving the user’s instruction for adjusting the video image parameter, and collecting the video according to the adjusted video image parameter. The corresponding movie image is cached.

When the user's adjustment instruction on the film image parameters is received, the image ratio in the film image parameters remains unchanged.

The method for retrieving the playing video of the present invention further includes: receiving the user's sharing instruction, providing the user with a selectable sharing path and method, and sharing according to the selected sharing path and method after the user selects the sharing path and method.

When the file size supported by the sharing channel and method selected by the user is smaller than the collected video file, the collected video file is divided into the file size supported by the sharing channel and method, and shared in segments.

The present invention also proposes a device for capturing video files being played, which is used to capture the video files being played based on the above method. movie finger command, select the film image parameters to be captured; the film image acquisition module is used to start collecting the film images corresponding to the film image parameters according to the film image parameters selected by the user for caching; the film image preservation module, It is used to receive the user's recording completion command and save the cached video image as a video file.

Further, the retrieval device also includes: a response menu module, which is used to receive the user's operation command, and pop up a video capture operation menu in the current screen window, so as to select the video capture command from the video capture operation menu. ; The response menu module also recognizes the current screen window after receiving the user's operation instruction, and only pops up the video capture operation menu when the current screen window is a video playback window.

Further, the video image parameter selection module is also used to superimpose a video capture operation window on the surface of the current video playback screen window, the video capture operation window includes a video recording time bar at the top of the screen, and the video recording time bar The remaining time period and operation buttons of the captured video file being played will be displayed in .

Further, the film image parameter selection module is also used to receive the user's adjustment instruction on the film image parameters, collect corresponding film images according to the adjusted film image parameters and cache them, and receive the user's instruction on film image parameters When the parameters are adjusted, the image ratio in the movie image parameters will not change.

Further, the retrieval device also includes: a sharing module, which is used to receive sharing instructions from users, provide users with selectable sharing channels and methods, and select sharing channels and methods for users After that, share according to the selected sharing channel and method.

The present invention proposes a method and device for capturing a video that is being played. The user sets the parameters of the video image to be captured in the playing window of the video being played, collects the video image and caches it, and extracts from the video file being played. Capture the desired movie image. In addition, during the acquisition process, the film image parameters and the time to start the acquisition can be adjusted, and the image ratio in the fixed film image parameters remains unchanged, so as to facilitate subsequent playback. The method of the invention can flexibly extract video clips from the video files being played without affecting normal playback.

S1‧‧‧step

S2‧‧‧step

S3‧‧‧step

Fig. 1 is a flow chart of the method for capturing a video in playback according to the present invention; FIG. 2 is a state diagram of a video capture operation window according to an embodiment of the present invention; FIG. 3 is another state diagram of the video capture operation window according to the embodiment of the present invention; FIG. 4 is another state diagram of the video capture operation window according to the embodiment of the present invention; FIG. 5 is a schematic structural diagram of a device for capturing a video being played according to the present invention.

The technical solutions of the present invention will be described in further detail below in conjunction with the drawings and examples, and the following examples are not intended to limit the present invention.

Fig. 1 shows a kind of retrieval method of the video in playing in this embodiment, including Including: step S1, receiving a video capture instruction from the user, and selecting the image parameters of the video to be captured.

When the video file is playing, the user's operation command can be received, and a video capture operation menu can be popped up in the current screen window, so that the video capture command can be selected in the pop-up video capture operation menu. It is also possible to embed an operation button in the video playback software or on the desktop, and click the operation button to start capturing video commands directly.

In this embodiment, the user clicks the right mouse button on the current screen window of the PC screen, or long-presses the touch screen on the smart terminal to issue an operation command. After receiving the user's operation command, the video capture operation pops up. A menu, for example, there is a "capture video" function option in the menu.

Further, in this embodiment, only when the current screen window is a video playback window and the playback object is a video file, the video capture operation menu will pop up, and when the current screen window is not playing a video file, the video capture operation will not pop up menu. That is, after receiving the user's operation command, the current screen window will be identified, and when it is identified as a video playback window and the video file is being played, the video capture operation menu will pop up. In this way, conflicts with other user operations can be prevented. Only when the operation is performed in the video playback window, will the video capture operation menu pop up.

After the user clicks the "capture video" function option in the previous step, a video capture operation window is superimposed on the surface of the current video playback screen window. As shown in Figure 2, the video capture operation window in this embodiment is the video recording time bar at the top of the screen, and the captured video will be displayed in the video recording time bar. The remaining time period of the playing video file and the action button, which will gradually decrease as the video plays. The specific design form of the video capture operation window can be varied, for example, it is similar to the operation window of the existing screenshot software.

It should be noted that in this embodiment, the video capture operation window is preferably popped up. In practical applications, the video capture operation window may not be generated, and the video image parameters to be captured may be directly selected to perform video capture.

After the video capture operation window appears, the user can operate the mouse or finger operation on the touch screen to select the video capture area to be determined, that is, determine the parameters of the video image to be captured, or directly input the video image parameters, the movie image parameters include one or more of image position, image size or image ratio. On the PC, press and hold the left mouse button, and release it to form a video capture area, and set control points around the capture frame. Adjusting the control points can also adjust the area and position, such as the dotted line in Figure 2. The range selected by the frame, the square point on the dotted frame is the control point; on the smart terminal, the finger draws a diagonal line on the touch screen, and the diagonal line drawn is the diagonal line of the captured screen, thus forming A rectangular screenshot area.

When selecting the video capture area to be determined, the cursor used for selecting the video capture area also has the coordinates or/and image scale of the screen position where the cursor is located. For example, beside the cursor of the mouse, the coordinate data of the X and Y axes of the screen and the ratio of the capture frame are displayed at any time, so as to give customers a more intuitive experience.

After confirming the video image parameters to be captured, you can click the video Click the "Start Recording" button on the recording time bar to start recording from the current frame of the current movie.

Step S2, start to collect the film image corresponding to the film image parameter according to the film image parameter selected by the user for buffering.

After clicking "Start Recording" in the previous step, the video image corresponding to the video image parameters will be collected and cached. The video and audio recording will start, and the recorded video and audio will be cached. In this embodiment, audio data corresponding to the current movie image is also collected for buffering while the movie image is cached, and an association with the collected movie image is established for subsequent playback. For the collection of video images, you can directly take a screenshot of the image displayed on the screen, or you can collect it from the video output interface of the video playback software; for the collection of audio data, you can also directly use the audio output port of the PC or smart terminal Capture, or capture from the audio output interface of the video playback software. The specific collection method will not be repeated here.

When recording, the video recording time bar above the screen will display the progress of the recording duration and the recording time, the remaining time period of the captured video being played will no longer decrease, and a recording completion button will appear next to the video recording time bar (for tick), and the recording cancel button (cross), and the movie save button, as shown in Figure 3, are used to confirm the recording completion, record cancellation confirmation and movie save confirmation respectively. .

Further, the method of this embodiment further includes: receiving a user's instruction for adjusting film image parameters, and starting collection from the adjusted starting time node of collection.

That is, you can also adjust the image parameters of the movie while recording the movie. During video recording, the size and position of the video capture area can be adjusted, but due to the limitation of subsequent playback, the originally set video ratio cannot be changed.

For example, the size and position of the video capture area can be adjusted by dragging the capture frame, but the video ratio cannot be adjusted, that is, if the video ratio determined before clicking the "Start Recording" button is 3:4, the rear screen Although the capture size can be changed, its ratio has always been only 3:4.

It should be noted that the present invention restricts the adjustment of the movie ratio, which can ensure normal and stable playback in terms of visual effects during subsequent playback. That is, after the user selects the video image parameters to be captured, the video ratio cannot be adjusted, but the image position and image size can be adjusted. When playing the recorded video, it is only played according to the selected image ratio and image size at the beginning, even if the size and position of the recorded video are adjusted later, it only needs to be scaled proportionally during playback. Can.

Further, the method of this embodiment further includes: receiving an adjustment instruction from the user on the start time node of collection, and starting the collection from the adjusted start time node of collection.

That is, in this embodiment, the time node when the collection starts can also be adjusted as needed. That is, when recording, two time nodes will appear on the video recording time bar, as shown in Figure 4, one is the time node when the video is actually played, and the other is the time node that the user actually wants to capture, that is, the start time of collection node. Initially, the two time nodes coincided at 6:23, but If the time the user wants to capture is before the current playback time, such as 2:23, the user can drag the start capture time node on the video recording time bar to the time point 2:23 to be captured. At the same time, The video in the selected capture frame changes instead of displaying the current video playback image. Instead, the movie image of the frame the user manually tunes to is displayed and remains static.

It should be noted that the adjustment of the time node can only be earlier than the time frame currently being played. And at this time, its size and position can no longer be adjusted, and the surrounding adjustment control points disappear.

Step S3, receiving the user's recording completion instruction, and storing the buffered video image and sound as a video file.

After the recording ends, the user clicks the "Recording Complete" button on the video recording time bar, or the "Save" button on the video recording time bar to save the cached video image and sound as a video file, and the storage address can be selected Save it in a local folder to complete the retrieval of the video file.

Further, the method of this embodiment further includes: receiving a sharing instruction from the user, providing the user with selectable sharing channels and methods, and sharing according to the selected sharing channel and method after the user selects the sharing channel and method.

That is, after the recording is completed, the user can also choose the way and method of sharing to share the captured video. Because it is a video file, it may be relatively large, so some platforms have file size restrictions for sharing. When the file size supported by the sharing method and method selected by the user is smaller than the collected video file, the collected video file will be divided into the sharing method and the shared method. The file size supported by the method is divided into segment sharing. At the same time, because the video file is relatively large, this embodiment also asks whether to save the video file locally before sharing.

As shown in FIG. 5 , this embodiment also proposes a device for capturing a video being played, which is used to capture a video file being played based on the method for capturing a video being played. The capturing device includes: a video The image parameter selection module is used to receive the video capture command from the user and select the video image parameters to be captured; the video image acquisition module is used to start collecting video image parameters according to the video image parameters selected by the user The corresponding video image is cached; the video image saving module is used to receive the user's recording completion command and store the cached video image as a video file.

The capture device of this embodiment also includes: a response menu module, which is used to receive the user's operation command, and pop up a capture video operation menu in the current screen window, so that the capture video command can be selected from the capture video operation menu ; The response menu module also recognizes the current screen window after receiving the user's operation command, and only pops up the video capture operation menu when the current screen window is a video playback window.

The video image parameter selection module of this embodiment is also used to superimpose a video capture operation window on the surface of the current video playback screen window. The video capture operation window includes a video recording time bar at the top of the screen, and in the video recording time bar The remaining time period of the captured video file being played and the operation buttons will be displayed. Regarding the specific operation button and its operation method, it has been described in the previous text corresponding to Fig. 2, Fig. 3 and Fig. 4, and will not be repeated here. repeat.

The film image parameter selection module of this embodiment is also used to receive the user's adjustment instruction to the film image parameters, and collect the corresponding film image according to the adjusted film image parameters for caching. When the adjustment command is used, the image ratio in the movie image parameters will not change.

The capture device in this embodiment also includes: a sharing module, which is used to receive sharing instructions from users, provide users with selectable sharing channels and methods, and share according to the selected sharing channels and methods after the user selects the sharing channels and methods .

The specific functions and working details of each module in the capture device of this embodiment have been described in detail in the method for capturing a video being played in this specific embodiment, and will not be repeated here.

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Without departing from the spirit and essence of the present invention, those with ordinary knowledge in the technical field can make various corresponding changes according to the present invention. and deformation, but these corresponding changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (17)

A method for retrieving a video being played, which is used for retrieving a video file being played, is characterized in that the method for retrieving a video being played includes: receiving an operation command from a user, identifying the current screen window, and When the current screen window is a video playback window, pop up a video capture operation menu on the current screen window; receive the video capture command selected by the user from the video capture operation menu, and display it on the surface of the current video playback screen window The video capture operation window is superimposed on the top, and the video capture operation window includes a video recording time bar at the top of the screen. The video recording time bar will display the remaining time period of the captured video file being played and operation buttons for the user Select the video image parameters to be captured; start to capture the video images corresponding to the video image parameters according to the video image parameters selected by the user for recording. When recording, the video recording time bar at the top of the screen will display the progress of the recording duration and the recording time display, the remaining time of the captured video being played will no longer decrease; the recorded video image is stored as a video file after receiving the user's recording completion instruction. According to the retrieval method of the playing video described in claim 1, wherein, the operation button on the video recording time bar includes a start recording button, and after selecting the video image parameters to be captured, click the start recording button to start collecting The movie image corresponding to the movie image parameter is recorded. According to the retrieval method of the playing video described in claim 1, it In , the operation buttons include a recording completion button, a recording cancel button, and a movie saving button, which are respectively used to perform recording completion confirmation, recording cancellation confirmation, and movie saving confirmation operations. According to the method for retrieving a video being played according to claim 1, wherein the video recording time bar further includes: the time node when the video is actually played and the time node when the collection starts. According to the method for capturing a video being played according to claim 4, the method for capturing a video being played further includes: receiving an instruction from the user to adjust the start time of collection, and start the collection from the adjusted start time of collection. According to the method for capturing a video being played according to claim 5, wherein, the adjusted starting time node of acquisition is earlier than the time node when the video is actually played. According to the method for capturing the playing video described in claim 1, wherein the selection of the video image parameters to be captured includes: selecting a video capture area on the video playback screen window, and determining according to the selected video capture area Movie image parameters, where the movie image parameters include one or more of image position, image size, or image ratio. According to the method for capturing a video being played according to claim 7, control points are set around the frame of the video capturing area. According to the method for capturing a video during playback described in claim 7, wherein when the video capture area is selected on the video playback screen window, the cursor used to select the video capture area also has the coordinates of the screen position where the cursor is located or / and image scale. According to the method for capturing a video being played according to claim 1, the method for capturing a video being played further includes: collecting the current video image while capturing the video image corresponding to the video image parameters for recording Record the corresponding audio data. According to the method for extracting a video being played according to claim 1, wherein the method for extracting a video being played further includes: receiving the user's request for the video when the video image corresponding to the parameters of the video image is started to be captured and recorded. The image parameter adjustment command collects and records corresponding film images according to the adjusted film image parameters. According to the method for capturing a video being played according to claim 11, when receiving a user's instruction to adjust the image parameters of the video, the ratio of the image in the image parameters of the video remains unchanged. According to the method for retrieving a video that is being played according to claim 1, the method for retrieving a video that is being played further includes: receiving a sharing instruction from the user, providing the user with selectable sharing channels and methods, and selecting the sharing channel when the user selects the method. After specifying the sharing method and method, share according to the selected sharing method and method. According to the method for retrieving a playing video described in claim 13, wherein, when the size of the file supported by the sharing path and method selected by the user is smaller than the captured video file, the collected video file is divided into those supported by the sharing path and method. The file size is shared by segments. A device for retrieving a video being played is used for retrieving the video file being played. The screen window is identified, and when the current screen window is a video playback window, a video capture operation menu pops up on the current screen window; the video image parameter selection module is used to receive the user from the video capture operation menu The selected capture video command superimposes a video capture operation window on the surface of the current video playback screen window. The video capture operation window includes a video recording time bar at the top of the screen, and the captured video will be displayed in the video recording time bar. The remaining time period of the video file being played and the operation button are used for the user to select the video image parameters to be captured; the video image acquisition module is used to start collecting video image parameters corresponding to the video image parameters selected by the user When recording, the video recording time bar at the top of the screen will show the progress of the recording time and the recording time, and the remaining time of the captured video that is being played will not decrease; the video image The save module is used to receive the user's recording completion command and save the recorded video image as a video file. According to the device for capturing a video being played according to claim 15, wherein the video image parameter selection module is also used to receive the user's instruction for adjusting the video image parameters, and collect the corresponding video image parameters according to the adjusted video image parameters The film image is recorded, and when the user's adjustment instruction on the film image parameter is received, the image ratio in the film image parameter remains unchanged. According to the device for capturing the playing video described in claim 15, the capturing device further includes: a sharing module, which is used to receive the user's sharing instruction, and provide the user with selectable sharing channels and methods. Ways and means of sharing After that, share according to the selected sharing channel and method.

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