CN111246084B - Method and device for controlling frame rate - Google Patents
Method and device for controlling frame rate Download PDFInfo
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- CN111246084B CN111246084B CN202010021687.2A CN202010021687A CN111246084B CN 111246084 B CN111246084 B CN 111246084B CN 202010021687 A CN202010021687 A CN 202010021687A CN 111246084 B CN111246084 B CN 111246084B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
- H04N23/951—Computational photography systems, e.g. light-field imaging systems by using two or more images to influence resolution, frame rate or aspect ratio
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The disclosure provides a method and a device for controlling frame rate, and relates to the technical field of control frame rate. The method for controlling the frame rate comprises the following steps: judging whether a user event reported by a zero terminal is received, wherein a response sent to the zero terminal by a primary mouse is used as a user event; if a user event is received, counting the reporting frequency of the user event within a preset time; inquiring the image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event; the preset mapping table comprises a plurality of corresponding relations between reporting frequencies and acquisition frame rates; judging whether the current picture has a change or not; and if the current picture is unchanged, adjusting the image acquisition frame rate to the inquired image acquisition frame rate. The control frame rate method can solve the technical problem that different images and different frequency mouse operations cannot be acquired at different image acquisition frame rates.
Description
Technical Field
The disclosure relates to the technical field of control frame rate, in particular to a method and a device for controlling frame rate.
Background
As the personalization requirements of enterprises become higher, VDI (Virtual Desktop Infrastructure, i.e., virtual desktop infrastructure) is popular with more and more enterprises. The VDI can virtualize a plurality of virtual machines VM (Virtual Machine) on a server with strong performance through a desktop virtualization technology, a user and an administrator can install an operating system, an application program and the like in the VM, the administrator can allocate one or more VMs to one or more users according to needs, and the user desktop does not need to deploy a personal computer with strong performance any more, but only needs to deploy a safe and manageable zero terminal, so that the VDI can be connected to the VM of the data center and use the VM, and the VM at the server end is transmitted to the client end and revealed to the end user through a network.
Because the user operates on the zero terminal, the operation is actually performed on the VM of the server, and the image change caused by the speed of the mouse operation is different from the video, so that the method has great randomness, and if the high frame rate acquisition of the image is always kept, the user experience can be improved, but the waste of system resources can be caused, and in the scene of limited bandwidth resources, more available bandwidth can be consumed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a control frame rate method and a device, wherein the control frame rate method can solve the technical problem that different images and different frequency mouse operations cannot be acquired at different image acquisition frame rates.
According to a first aspect of embodiments of the present disclosure, there is provided a method of controlling a frame rate, the method comprising:
judging whether a user event reported by a zero terminal is received, wherein a response sent to the user event is sent out by a primary mouse;
if the user event is received, counting the reporting frequency of the user event within a preset time;
inquiring the image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event; the preset mapping table comprises a plurality of corresponding relations between reporting frequencies and acquisition frame rates;
judging whether the current picture has a change or not;
and if the current picture is unchanged, adjusting the image acquisition frame rate to the inquired image acquisition frame rate.
In one embodiment, the method further comprises:
if the current picture changes, acquiring a current image acquisition frame rate of the current picture;
judging whether the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate;
and if the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate, adjusting the image acquisition frame rate to be the inquired image acquisition frame rate.
In one embodiment, the method further comprises:
and if the current image acquisition frame rate of the current picture is not less than the inquired image acquisition frame rate, adjusting the image acquisition frame rate to be the current image acquisition frame rate of the current picture.
In one embodiment, if the user event is received, counting the reporting frequency of the user event within a preset time includes:
counting the reporting times of the user event in a preset time;
and calculating the reporting frequency of the user event according to the reporting times of the user event in the preset time.
In one embodiment, the method further comprises:
if the user event is not received, judging whether the current picture has a change or not;
if the current picture changes, image acquisition is carried out according to the maximum acquisition frequency in the preset mapping table;
if the current picture is unchanged, the current static picture is kept, and image acquisition is not carried out.
In one embodiment, the user event includes at least one of a mouse event, a keyboard event, and a touch screen event.
In one embodiment, the determining whether the user event reported by the zero terminal is received includes:
if the zero terminal is a windows system, directly calling windows API to call an input event or calling a key mouse driver to judge whether a user event reported by the zero terminal is received;
if the zero terminal is a Linux system, judging whether a user event reported by the zero terminal is received or not by calling a key mouse driver.
According to a second aspect of embodiments of the present disclosure, there is provided a control frame rate apparatus comprising:
the first judging module judges whether a user event reported by the zero terminal is received or not, wherein a response from one time of mouse sending to the receiving is used as one user event;
the statistics module is used for counting the reporting frequency of the user event in a preset time if the user event is received;
the query module queries the image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event; the preset mapping table comprises a plurality of corresponding relations between reporting frequencies and acquisition frame rates;
the second judging module is used for judging whether the current picture changes or not;
and the first adjusting module is used for adjusting the image acquisition frame rate to the inquired image acquisition frame rate if the current picture is unchanged.
In one embodiment, the apparatus further comprises:
the acquisition module acquires the current image acquisition frame rate of the current picture if the current picture changes;
a third judging module for judging whether the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate;
and the second adjusting module is used for adjusting the image acquisition frame rate to the inquired image acquisition frame rate if the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate.
In one embodiment, the statistics module includes:
the statistics sub-module is used for counting the reporting times of the user event in a preset time;
and the calculation sub-module calculates the reporting frequency of the user event according to the reporting times of the user event in the preset time.
According to the embodiment of the disclosure, the image acquisition frame of the server is adaptively modified by detecting the frequency of the user event reported by the zero terminal. Therefore, under the condition of low operation frequency of a user, the frame rate of image acquisition can be reduced, system resource preemption is reduced, and bandwidth resources are saved; under the condition that the operation frequency of the user is high, the frame rate of image acquisition can be improved, the situation that the user perceives operation jamming at a zero terminal is avoided, and the use experience of the user is improved.
In addition, the embodiment of the disclosure can obtain better experience effect under the scene that the picture changes and the user performs the mouse-pressing operation at the same time, and reduce the system load and the transmission bandwidth occupation under the premise of ensuring better experience of the user under the scene that only the user performs the mouse-pressing operation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart of a method for controlling a frame rate according to an embodiment of the present disclosure.
Fig. 2 is a control logic diagram of a method for controlling a frame rate according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a frame rate control device according to an embodiment of the present disclosure.
Fig. 4 is a schematic diagram of a frame rate control device according to an embodiment of the present disclosure.
Fig. 5 is a schematic diagram of a control frame rate device according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The embodiment of the disclosure provides a method for controlling frame rate, as shown in fig. 1, which comprises the following steps:
step 101, judging whether a user event reported by a zero terminal is received, wherein a response is sent to be received by a primary mouse as one user event;
wherein the user event comprises a user event comprising at least one of a mouse event, a keyboard event, and a touch screen event.
Illustratively, the mouse events include clicking and moving a mouse, wherein clicking the mouse includes clicking and double clicking the mouse; the keyboard event includes a tap of the keyboard and the touch screen event includes a touch screen.
In one embodiment, the determining whether the user event reported by the zero terminal is received includes:
if the zero terminal is a windows system, directly calling windows API to call an input event or calling a key mouse driver to judge whether a user event reported by the zero terminal is received;
if the zero terminal is a Linux system, judging whether a user event reported by the zero terminal is received or not by calling a key mouse driver.
Step 102, if the user event is received, counting the reporting frequency of the user event within a preset time; the preset time may be adjusted according to the user scene, and in this embodiment, the preset time is set to 100ms.
In one embodiment, if the user event is received, counting the reporting frequency of the user event within a preset time includes:
counting the reporting times of the user event within 100 ms;
and calculating the reporting frequency of the user event according to the reporting times of the user event in the preset time.
Step 103, inquiring an image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event; the preset mapping table comprises a plurality of corresponding relations between reporting frequencies and acquisition frame rates;
illustratively, taking an example that the highest frame rate of the image acquisition frame rate is 30 frames/s, the corresponding relationship between the reporting frequency and the acquisition frame rate/s is as follows in table 1:
TABLE 1
| Reporting frequency/second | Acquisition frame rate/second |
| [0,5) | 1-5 |
| [6,15) | 6-15 |
| [16,30) | 16-30 |
If the reporting frequency of the user event is greater than 30, the transmission is performed at the highest supported frequency of 30 frames/s.
104, judging whether the current picture has a change or not;
and step 105, if the current picture is unchanged, adjusting the image acquisition frame rate to the queried image acquisition frame rate.
FIG. 2 is a control logic diagram of the disclosed embodiment, as shown in FIG. 2, the method further comprising:
step 201, judging whether a user event reported by a zero terminal is received, wherein a response is sent to be received by a primary mouse as one user event;
step 202, if the user event is received, counting the reporting frequency of the user event within a preset time;
step 203, inquiring an image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event;
step 204, judging whether the current picture has a change;
step 205, if the current picture is unchanged, adjusting the image acquisition frame rate to the queried image acquisition frame rate.
In one embodiment, the method further comprises:
step 206, if the current picture changes, obtaining a current image acquisition frame rate of the current picture;
step 207, judging whether the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate;
step 208, if the current image acquisition frame rate of the current picture is smaller than the queried image acquisition frame rate, adjusting the image acquisition frame rate to the queried image acquisition frame rate.
In one embodiment, the method further comprises:
step 209, if the current image acquisition frame rate of the current picture is not less than the queried image acquisition frame rate, adjusting the image acquisition frame rate to be the current image acquisition frame rate of the current picture.
In one embodiment, the method further comprises:
step 2020, if the user event is not received, judging whether the current picture has a change;
and step 2011, if the current picture changes, performing image acquisition according to the maximum acquisition frequency in the preset mapping table.
Step 2012, if the current picture is unchanged, the current static picture is maintained, and no image acquisition is performed.
Fig. 3 is a diagram of a control frame rate device according to an embodiment of the present disclosure, where, as shown in fig. 3, the control frame rate device includes a first judging module 301, a statistics module 302, a query module 303, a second judging module 304, and a first adjusting module 305; the first judging module 301 is configured to judge whether a user event reported by the zero terminal is received; the statistics module 302 is configured to count a reporting frequency of the user event within a preset time; the query module 303 is configured to query, in a preset mapping table, an image acquisition frame rate corresponding to the user event according to the reporting frequency of the user event; the second judging module 304 is configured to judge whether the current frame has a change; the first adjustment module 305 is configured to adjust the image acquisition frame rate to the queried image acquisition frame rate.
Fig. 4 is a diagram of a control frame rate device provided by an embodiment of the present disclosure, as shown in fig. 4, where the device includes a first judging module 401, a statistics module 402, a query module 403, a second judging module 404, a first adjusting module 405, an obtaining module 406, a third judging module 407, and a second adjusting module 408, where the obtaining module 406 is configured to obtain a current image acquisition frame rate of the current frame; the third judging module 407 is configured to judge whether the current image acquisition frame rate of the current picture is less than the queried image acquisition frame rate; the second adjustment module 408 is configured to adjust the image acquisition frame rate to the queried image acquisition frame rate.
Fig. 5 is a diagram of a control frame rate device according to an embodiment of the present disclosure, as shown in fig. 5, a first judging module 501, a statistics module 502, a query module 503, a second judging module 504, and a first adjusting module 505; the statistics module 502 includes a statistics submodule 5021 and a calculation submodule 5022, where the statistics submodule 5021 is used to count the number of times of reporting the user event in a preset time; the calculating submodule 5022 is used for calculating the reporting frequency of the user event according to the reporting times of the user event in the preset time.
In particular, the method comprises the steps of,
the server judges whether a user event reported by the zero terminal is received or not;
if the user event is not received, that is, if the keyboard and the mouse are not operated, the server judges whether the current picture is changed (such as playing video), if the current picture is changed, image acquisition is carried out according to the supported maximum acquisition frame rate; if the current picture is unchanged, the current static picture is kept, and image acquisition is not performed temporarily;
if a user event is received, the server counts the reporting frequency of the user event in a preset period, and the server inquires the image acquisition frame rate in a preset mapping table according to the reporting frequency of the user event;
inquiring the image acquisition frame rate in a preset mapping table according to the reporting frequency of the user event by the server;
the server judges whether the current picture has a change or not;
if the current picture is unchanged, the server adjusts the image acquisition frame rate to the inquired acquisition frame rate, and the processing is finished.
If the current picture changes, the server acquires the current image acquisition frame rate;
comparing the inquired acquisition frame rate with the current image acquisition frame rate; if the queried acquisition frame rate is greater than or equal to the current image acquisition frame rate, adjusting the image acquisition frame rate to be the queried acquisition frame rate;
if the queried acquisition frame rate is smaller than the current image acquisition frame rate, the image acquisition frame rate is adjusted to be the current image acquisition frame rate, and the processing is finished.
According to the embodiment of the disclosure, the image acquisition frame of the server is adaptively modified by detecting the frequency of the user event reported by the zero terminal. Therefore, under the condition of low operation frequency of a user, the frame rate of image acquisition can be reduced, system resource preemption is reduced, and bandwidth resources are saved; under the condition that the operation frequency of the user is high, the frame rate of image acquisition can be improved, the situation that the user perceives operation jamming at a zero terminal is avoided, and the use experience of the user is improved.
In addition, the embodiment of the disclosure can obtain better experience effect under the scene that the picture changes and the user performs the mouse-pressing operation at the same time, and reduce the system load and the transmission bandwidth occupation under the premise of ensuring better experience of the user under the scene that only the user performs the mouse-pressing operation.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
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 disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general 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.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A method of controlling frame rate, the method comprising:
judging whether a user event reported by a zero terminal is received, wherein a response sent to the user event is sent out by a primary mouse;
if the user event is received, counting the reporting frequency of the user event within a preset time;
inquiring the image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event; the preset mapping table comprises a plurality of corresponding relations between reporting frequencies and acquisition frame rates;
judging whether the current picture has a change or not;
if the current picture is unchanged, adjusting the image acquisition frame rate to the inquired image acquisition frame rate;
if the current picture changes, acquiring a current image acquisition frame rate of the current picture;
judging whether the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate;
and if the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate, adjusting the image acquisition frame rate to be the inquired image acquisition frame rate.
2. The method according to claim 1, wherein the method further comprises:
and if the current image acquisition frame rate of the current picture is not less than the inquired image acquisition frame rate, adjusting the image acquisition frame rate to be the current image acquisition frame rate of the current picture.
3. The method of claim 1, wherein counting the reporting frequency of the user event within a preset time if the user event is received comprises:
counting the reporting times of the user event in a preset time;
and calculating the reporting frequency of the user event according to the reporting times of the user event in the preset time.
4. The method according to claim 1, wherein the method further comprises:
if the user event is not received, judging whether the current picture has a change or not;
if the current picture changes, image acquisition is carried out according to the maximum acquisition frequency in the preset mapping table;
if the current picture is unchanged, the current static picture is kept, and image acquisition is not carried out.
5. The method of any of claims 1-4, wherein the user event comprises at least one of a mouse event, a keyboard event, and a touch screen event.
6. The method according to any one of claims 1-4, wherein the determining whether the user event reported by the zero terminal is received comprises:
if the zero terminal is a windows system, directly calling windows API to call an input event or calling a key mouse driver to judge whether a user event reported by the zero terminal is received;
if the zero terminal is a Linux system, judging whether a user event reported by the zero terminal is received or not by calling a key mouse driver.
7. A control frame rate apparatus, the apparatus comprising:
the first judging module judges whether a user event reported by the zero terminal is received or not, wherein a response from one time of mouse sending to the receiving is used as one user event;
the statistics module is used for counting the reporting frequency of the user event in a preset time if the user event is received;
the query module queries the image acquisition frame rate corresponding to the user event in a preset mapping table according to the reporting frequency of the user event; the preset mapping table comprises a plurality of corresponding relations between reporting frequencies and acquisition frame rates;
the second judging module is used for judging whether the current picture changes or not;
the first adjusting module is used for adjusting the image acquisition frame rate to the inquired image acquisition frame rate if the current picture is unchanged;
the apparatus further comprises:
the acquisition module acquires the current image acquisition frame rate of the current picture if the current picture changes;
a third judging module for judging whether the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate;
and the second adjusting module is used for adjusting the image acquisition frame rate to the inquired image acquisition frame rate if the current image acquisition frame rate of the current picture is smaller than the inquired image acquisition frame rate.
8. The apparatus of claim 7, wherein the statistics module comprises:
the statistics sub-module is used for counting the reporting times of the user event in a preset time;
and the calculation sub-module calculates the reporting frequency of the user event according to the reporting times of the user event in the preset time.
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| CN115037727B (en) * | 2022-08-10 | 2022-11-11 | 深圳海卫通网络科技有限公司 | Broadband blocking processing method and device for shipborne satellite communication video transmission |
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