CN112948046A - Screen capturing method, device, equipment and storage medium - Google Patents
Screen capturing method, device, equipment and storage medium Download PDFInfo
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Abstract
The invention provides a screen capturing method, a screen capturing device, screen capturing equipment and a storage medium, and relates to the technical field of images, wherein the method comprises the steps that a virtual machine receives a screen capturing request sent by cloud terminal equipment; the virtual machine obtains a screen capture image based on the current frame image obtained by the receiving end module; and the virtual machine stores the screen capture image in a preset storage space. According to the cloud terminal equipment, a user can view and use the screen capture image from the storage space through remote operation at any time, and the screen capture function can be achieved based on the basic architecture of the cloud terminal equipment.
Description
Technical Field
The present disclosure relates to the field of image technologies, and in particular, to a screen capture method, apparatus, device, and storage medium.
Background
In the existing smart phone, screen capture is a very common function, and when a user uses the smart phone, the user wants to save information on a screen in a picture mode, and the user can capture the screen.
In the related art, when a screen is captured, a smart phone usually calls a system Application Programming Interface (API) to capture a picture on a current display screen to obtain a captured picture; or, the screen capture code is injected in the application program process, and then the screen capture is realized by calling the screen capture code.
However, the screen capturing method in the above technology is applied to the existing smart phone, and the cloud phone has a completely different working mode from the existing smart phone, so the screen capturing method is not suitable for the cloud phone scene.
Disclosure of Invention
The embodiment of the disclosure provides a screen capture method, a screen capture device, screen capture equipment and a storage medium, which can solve the problem that the screen capture method in the prior art is not suitable for a cloud mobile phone scene. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a screen capture method applied to a cloud server, where a virtual machine and a receiving end module are located on the cloud server, the virtual machine and a cloud terminal device are connected via the receiving end module, and the method includes:
the virtual machine receives a screen capture request sent by the cloud terminal equipment;
the virtual machine obtains a screen capture image based on the current frame image obtained by the receiving end module;
and the virtual machine stores the screen capture image in a preset storage space.
The embodiment of the disclosure provides a screen capture method, wherein when a virtual machine receives a screen capture request of cloud terminal equipment, a screen capture image is obtained based on a current frame image obtained by a receiving end module, and finally the obtained screen capture image is stored in a locally preset storage space. Therefore, a user of the cloud terminal equipment can view and use the screen capture image from the storage space through remote operation at any time, and the screen capture function can be realized based on the basic architecture of the cloud terminal equipment.
In one embodiment, the obtaining, by the virtual machine, a screenshot image based on the current frame image acquired by the receiving end module includes:
the virtual machine sends a first screen capturing instruction to a receiving end module, wherein the first screen capturing instruction is used for instructing to acquire the current frame image, so that the receiving end module sends the acquired current frame image to the virtual machine;
the virtual machine encodes the current frame image according to a target encoding algorithm to obtain the screen capture image; the target coding algorithm is a preset coding algorithm adopted during screen capture.
In one embodiment, the obtaining, by the virtual machine, a screenshot image based on the current frame image acquired by the receiving end module includes:
the virtual machine sends a second screen capture instruction to a receiving end module, wherein the second screen capture instruction is used for instructing to acquire the screen capture image, so that the receiving end module encodes the acquired current frame image according to a target encoding algorithm to obtain the screen capture image, and sends the screen capture image to the virtual machine;
the virtual machine receives the screen capture image.
In one embodiment, before the virtual machine receives the screen capture request sent by the cloud terminal device, the method further includes:
the virtual machine sends a desktop display image to the cloud terminal equipment, so that the cloud terminal equipment obtains the screen capturing request based on the desktop display image and sends the screen capturing request to the virtual machine.
According to a second aspect of the embodiments of the present disclosure, there is provided a screen capture apparatus, the apparatus including:
the receiving module is used for receiving a screen capturing request sent by the cloud terminal equipment;
the processing module is used for obtaining a screen capture image based on the current frame image obtained by the receiving end module;
and the storage module is used for storing the screen capture image in a preset storage space.
The embodiment of the disclosure provides a screen capture device, wherein when a virtual machine receives a screen capture request of cloud terminal equipment, a screen capture image is obtained based on a current frame image obtained by a receiving end module, and finally the obtained screen capture image is stored in a locally preset storage space. Therefore, a user of the cloud terminal equipment can view and use the screen capture image from the storage space through remote operation at any time, and the screen capture function can be realized based on the basic architecture of the cloud terminal equipment.
In one embodiment, the processing module includes a first sending submodule and an encoding submodule;
the first sending submodule is configured to send a first screen capturing instruction to a receiving end module, where the first screen capturing instruction is used to instruct to acquire the current frame image, so that the receiving end module sends the acquired current frame image to the virtual machine;
the coding submodule is used for coding the current frame image according to a target coding algorithm to obtain the screen capture image; the target coding algorithm is a preset coding algorithm adopted during screen capture.
In one embodiment, the processing module comprises a second sending submodule and a receiving submodule;
the second sending submodule is used for sending a second screen capture instruction to a receiving end module, wherein the second screen capture instruction is used for indicating to acquire the screen capture image, so that the receiving end module encodes the acquired current frame image according to a target encoding algorithm to obtain the screen capture image, and sends the screen capture image to the virtual machine;
the receiving submodule is used for receiving the screen capture image.
In one embodiment, the system further comprises a sending module;
the sending module is used for sending a desktop display image to the cloud terminal equipment, so that the cloud terminal equipment obtains the screen capturing request based on the desktop display image and sends the screen capturing request to the virtual machine.
According to a third aspect of the embodiments of the present disclosure, there is provided a screen capture apparatus including: a processor and a memory, the memory having stored therein at least one computer instruction, the instruction being loaded and executed by the processor to implement the steps performed in the screen capturing method described in the first aspect and any embodiment of the first aspect.
According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, in which at least one computer instruction is stored, and the instruction is loaded and executed by a processor to implement the steps performed in the screen capturing method described in the first aspect and any embodiment of the first aspect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart of a screen capture method provided by an embodiment of the present disclosure;
fig. 2 is a flowchart of an image transmission system provided by an embodiment of the present disclosure;
FIG. 3 is a flowchart of a screen capture method provided by an embodiment of the present disclosure;
fig. 4a is a structural diagram of a screen capture device provided by an embodiment of the present disclosure;
FIG. 4b is a block diagram of a screen capture device provided by an embodiment of the present disclosure;
fig. 4c is a block diagram of a screen capture device provided in an embodiment of the present disclosure;
FIG. 4d is a block diagram of a screen capture device provided by an embodiment of the present disclosure;
fig. 5 is a block diagram of a screen capture device provided in an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The embodiment of the disclosure provides a screen capture method, which is applied to a cloud server, wherein a virtual machine and a receiving end module are located on the cloud server, the virtual machine is connected with cloud terminal equipment through the receiving end module, as shown in fig. 1, the method includes the following steps:
For example, as shown in fig. 2, the system is a schematic structural diagram of an image transmission system, where the system includes a cloud server and at least one cloud terminal device, at least one virtual machine runs on the cloud server, the cloud server allocates one virtual machine to each cloud terminal device, and the cloud terminal device obtains a corresponding application service by connecting to the corresponding virtual machine. Specifically, after the cloud terminal device obtains a desktop image of a corresponding virtual machine, a user generates a reverse control instruction by operating the desktop image, the cloud terminal device sends the reverse control instruction to the corresponding virtual machine, the virtual machine executes corresponding processing according to the reverse control instruction, and finally sends an image corresponding to a processing result to the cloud terminal device.
For example, a plurality of virtual keys may be arranged in a desktop image displayed on the cloud terminal device, and if a user needs to capture a screen, the user clicks the screen capture key, so that the cloud terminal device generates a screen capture request after acquiring an instruction corresponding to the screen capture key, and sends the screen capture request to a virtual machine connected with the cloud terminal device; or, the user performs corresponding gesture input through a touch screen of the cloud terminal device, for example, a single finger slides up, a three finger slides down, and the like, to initiate a screen capture request; or the cloud terminal equipment is provided with a camera or a voice recognition module, if the user needs to capture the screen, a preset screen capture gesture can be put out or words about the screen capture can be spoken out, so that when the cloud terminal equipment obtains the screen capture gesture or the words about the screen capture and is determined to be the screen capture, a screen capture request is generated, and the screen capture request is sent to a virtual machine connected with the cloud terminal equipment.
It should be noted that the cloud terminal device may be a cloud mobile phone, a cloud computer, or may also be an intelligent terminal device equipped with a receiving end module (R end module), such as a mobile phone, a tablet computer, a PC, and the like, which is not limited in this disclosure.
And 102, the virtual machine obtains a screen capture image based on the current frame image obtained by the receiving end module.
Specifically, the virtual machine obtains the screen capture image based on the current frame image obtained by the receiving end module, and the screen capture image can be obtained by the following two methods:
the first method comprises the following steps: sending a first screen-cutting instruction to a receiving end module, wherein the first screen-cutting instruction is used for indicating to acquire the current frame image, so that the receiving end module sends the acquired current frame image to the virtual machine; the virtual machine encodes the current frame image according to a target encoding algorithm to obtain the screen capture image; the target coding algorithm is a preset coding algorithm adopted during screen capture.
Illustratively, when receiving a screen capture request sent by cloud terminal equipment, a virtual machine sends a first screen capture instruction for instructing to acquire a current frame image to a receiving end module connected with the virtual machine, when receiving the first screen capture instruction, the receiving end module acquires the current frame image acquired currently and sends the current frame image to the virtual machine, and when receiving the current frame image, the virtual machine encodes the current frame image according to a target encoding algorithm to obtain a screen capture image corresponding to the current frame image. It can be known that the first method is to capture a screen by means of the desktop image capturing function of the receiving end module.
The target encoding algorithm is an encoding algorithm required by a preset screenshot, and for example, the target encoding algorithm may be JPEG (Joint Photographic Experts Group), PNG (Portable Network Graphics), BMP (bitmap image), or the like.
It should be noted that the receiving end module may also continuously collect the desktop image of the virtual machine, encode the collected desktop image, and send a code stream obtained by encoding to the cloud terminal device connected to the receiving end module, thereby implementing real-time display of the desktop image on the cloud terminal device. That is to say, after the receiving end module collects the current frame image, on one hand, the current frame image is returned to the virtual machine according to the first screen capturing instruction received from the virtual machine; on the other hand, normal desktop image collection and encoding are still carried out, and code streams obtained through encoding are sent to cloud terminal equipment connected with a receiving end module.
The second method comprises the following steps: sending a second screen capturing instruction to a receiving end module, wherein the second screen capturing instruction is used for instructing to acquire the screen capturing image, so that the receiving end module encodes the acquired current frame image according to a target encoding algorithm to obtain the screen capturing image, and sends the screen capturing image to the virtual machine; the virtual machine receives the screen capture image. It can be known that, in the second method, the screen capture is implemented by means of the desktop image capture function and the encoding function of the receiving end module.
Illustratively, when receiving a screen capture request sent by cloud terminal equipment, a virtual machine sends a second screen capture instruction for instructing to acquire a screen capture image to a receiving end module connected with the virtual machine, and when receiving the second screen capture instruction, the receiving end module acquires a current frame image acquired currently, encodes the current frame image according to a target encoding algorithm to obtain a screen capture image corresponding to the current frame image, and finally sends the screen capture image to the virtual machine, so that the virtual machine acquires the screen capture image.
After the receiving end module collects the current frame image, on one hand, the current frame image is encoded according to a second screen capture instruction received from the virtual machine and a target encoding algorithm, and the screen capture image obtained by encoding is returned to the virtual machine; on the other hand, normal desktop image acquisition is still carried out, the acquired desktop image is encoded according to another encoding algorithm, and a code stream obtained by encoding is sent to cloud terminal equipment connected with a receiving end module; wherein, another encoding algorithm is an encoding algorithm that can be recognized by the cloud terminal device, for example, vGTP (real-time image compression transport protocol).
And 103, the virtual machine stores the screen capture image in a preset storage space.
For example, when the virtual machine obtains the screenshot image, the screenshot image is stored in a locally preset storage space, for example, the storage space is stored in a system album, and a user of the cloud terminal device can view and use the screenshot image in the system album through remote operation at any time.
Further, as shown in fig. 3, before executing step 101, the following step 104 is further included:
and 104, the virtual machine sends a desktop display image to the cloud terminal equipment, so that the cloud terminal equipment obtains the screen capture request based on the desktop display image and sends the screen capture request to the virtual machine.
For example, after the cloud terminal device is connected with the virtual machine, the cloud terminal device may receive a desktop display image sent by the virtual machine, the cloud terminal device displays the desktop display image, and when a user sees the desktop display image, if a screen capture is needed, the user clicks a screen capture button, so that after the cloud terminal device obtains an instruction corresponding to the screen capture button, a screen capture request is generated, and the screen capture request is sent to the virtual machine.
The embodiment of the disclosure provides a screen capture method, wherein when a virtual machine receives a screen capture request of cloud terminal equipment, a screen capture image is obtained based on a current frame image obtained by a receiving end module, and finally the obtained screen capture image is stored in a locally preset storage space. Therefore, a user of the cloud terminal equipment can view and use the screen capture image from the storage space through remote operation at any time, and the screen capture function can be realized based on the basic architecture of the cloud terminal equipment.
Based on the screen capture method described in the above embodiments, the following is an embodiment of the apparatus of the present disclosure, which can be used to execute the embodiment of the method of the present disclosure.
The disclosed embodiment provides a screen capture device, as shown in fig. 4a, the screen capture device 40 includes: a receiving module 401, a processing module 402 and a saving module 403.
The receiving module 401 is configured to receive a screen capture request sent by a cloud terminal device.
The processing module 402 is configured to obtain a screen capture image based on the current frame image obtained by the receiving end module.
A saving module 403, configured to save the screenshot image in a preset storage space.
In one embodiment, as shown in fig. 4b, the processing module 402 includes a first sending sub-module 4021 and an encoding sub-module 4022.
The first sending sub-module 4021 is configured to send a first screen capture instruction to a receiving end module, where the first screen capture instruction is used to instruct to acquire the current frame image, so that the receiving end module sends the acquired current frame image to the virtual machine.
The encoding submodule 4022 is configured to encode the current frame image according to a target encoding algorithm to obtain the screenshot image; the target coding algorithm is a preset coding algorithm adopted during screen capture.
In one embodiment, as shown in fig. 4c, the processing module 402 includes a second sending submodule 4023 and a receiving submodule 4024.
The second sending sub-module 4023 is configured to send a second screen capture instruction to a receiving end module, where the second screen capture instruction is used to instruct to acquire the screen capture image, so that the receiving end module encodes the acquired current frame image according to a target encoding algorithm to obtain the screen capture image, and sends the screen capture image to the virtual machine.
The receiving sub-module 4024 is configured to receive the screen capture image.
In one embodiment, as shown in fig. 4d, the apparatus further comprises a sending module 404.
The sending module 404 is configured to send a desktop display image to the cloud terminal device, so that the cloud terminal device obtains the screen capture request based on the desktop display image, and sends the screen capture request to the virtual machine.
The embodiment of the disclosure provides a screen capture device, wherein when a virtual machine receives a screen capture request of cloud terminal equipment, a screen capture image is obtained based on a current frame image obtained by a receiving end module, and finally the obtained screen capture image is stored in a locally preset storage space. Therefore, a user of the cloud terminal equipment can view and use the screen capture image from the storage space through remote operation at any time, and the screen capture function can be realized based on the basic architecture of the cloud terminal equipment.
Referring to fig. 5, an embodiment of the present disclosure further provides a screen capturing device, where the screen capturing device includes a receiver 501, a transmitter 502, a memory 503 and a processor 504, where the transmitter 502 and the memory 503 are respectively connected to the processor 504, the memory 503 stores at least one computer instruction, and the processor 504 is configured to load and execute the at least one computer instruction to implement the screen capturing method described in the corresponding embodiment of fig. 1.
Based on the screen capturing method described in the embodiment corresponding to fig. 1, an embodiment of the present disclosure further provides a computer-readable storage medium, for example, the non-transitory computer-readable storage medium may be a Read Only Memory (ROM), a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like. The storage medium stores computer instructions for executing the screen capturing method described in the embodiment corresponding to fig. 1, which is not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A screen capture method is applied to a cloud server, a virtual machine and a receiving end module are located on the cloud server, the virtual machine is connected with cloud terminal equipment through the receiving end module, and the method comprises the following steps:
the virtual machine receives a screen capture request sent by the cloud terminal equipment;
the virtual machine obtains a screen capture image based on the current frame image obtained by the receiving end module;
and the virtual machine stores the screen capture image in a preset storage space.
2. The method according to claim 1, wherein the obtaining, by the virtual machine, a screenshot image based on the current frame image obtained by the receiving end module comprises:
the virtual machine sends a first screen capturing instruction to a receiving end module, wherein the first screen capturing instruction is used for instructing to acquire the current frame image, so that the receiving end module sends the acquired current frame image to the virtual machine;
the virtual machine encodes the current frame image according to a target encoding algorithm to obtain the screen capture image; the target coding algorithm is a preset coding algorithm adopted during screen capture.
3. The method according to claim 1, wherein the obtaining, by the virtual machine, a screenshot image based on the current frame image obtained by the receiving end module comprises:
the virtual machine sends a second screen capture instruction to a receiving end module, wherein the second screen capture instruction is used for instructing to acquire the screen capture image, so that the receiving end module encodes the acquired current frame image according to a target encoding algorithm to obtain the screen capture image, and sends the screen capture image to the virtual machine;
the virtual machine receives the screen capture image.
4. The method according to claim 1, before the virtual machine receives the screen capture request sent by the cloud terminal device, further comprising:
the virtual machine sends a desktop display image to the cloud terminal equipment, so that the cloud terminal equipment obtains the screen capturing request based on the desktop display image and sends the screen capturing request to the virtual machine.
5. A screen capture device, comprising:
the receiving module is used for receiving a screen capturing request sent by the cloud terminal equipment;
the processing module is used for obtaining a screen capture image based on the current frame image obtained by the receiving end module;
and the storage module is used for storing the screen capture image in a preset storage space.
6. The apparatus of claim 5, wherein the processing module comprises a first sending submodule and an encoding submodule;
the first sending submodule is configured to send a first screen capturing instruction to a receiving end module, where the first screen capturing instruction is used to instruct to acquire the current frame image, so that the receiving end module sends the acquired current frame image to the virtual machine;
the coding submodule is used for coding the current frame image according to a target coding algorithm to obtain the screen capture image; the target coding algorithm is a preset coding algorithm adopted during screen capture.
7. The apparatus of claim 5, wherein the processing module comprises a second sending submodule and a receiving submodule;
the second sending submodule is used for sending a second screen capture instruction to a receiving end module, wherein the second screen capture instruction is used for indicating to acquire the screen capture image, so that the receiving end module encodes the acquired current frame image according to a target encoding algorithm to obtain the screen capture image, and sends the screen capture image to the virtual machine;
the receiving submodule is used for receiving the screen capture image.
8. The apparatus of claim 5, further comprising a sending module;
the sending module is used for sending a desktop display image to the cloud terminal equipment, so that the cloud terminal equipment obtains the screen capturing request based on the desktop display image and sends the screen capturing request to the virtual machine.
9. A screen capture device, comprising: a processor and a memory, the memory having stored therein at least one computer instruction, the instruction being loaded and executed by the processor to implement the steps performed in the screen capture method of any one of claims 1 to 4.
10. A computer-readable storage medium having stored thereon at least one computer instruction, which is loaded and executed by a processor to perform the steps performed in the screen capturing method of any one of claims 1 to 4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449095A (en) * | 2022-01-11 | 2022-05-06 | 北京百度网讯科技有限公司 | Cloud mobile phone screenshot method and device, electronic equipment and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449095A (en) * | 2022-01-11 | 2022-05-06 | 北京百度网讯科技有限公司 | Cloud mobile phone screenshot method and device, electronic equipment and storage medium |
| CN114449095B (en) * | 2022-01-11 | 2024-06-11 | 北京百度网讯科技有限公司 | Cloud mobile phone screenshot method and device, electronic equipment and storage medium |
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