CN114416236A - Method, device, equipment and medium for processing virtual desktop data - Google Patents
Method, device, equipment and medium for processing virtual desktop data Download PDFInfo
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- CN114416236A CN114416236A CN202111630547.6A CN202111630547A CN114416236A CN 114416236 A CN114416236 A CN 114416236A CN 202111630547 A CN202111630547 A CN 202111630547A CN 114416236 A CN114416236 A CN 114416236A
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- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
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Abstract
The embodiment of the application discloses a method, a device, equipment and a medium for processing virtual desktop data, which are used for acquiring network state information; the network state information reflects the network state when the dynamic picture is played. Determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information; the image definition and the image fluency are important parameters influencing the viewing experience of a user, the virtual desktop data are coded according to the image definition and the image fluency, and the coded virtual desktop data are sent to the client. In the technical scheme, the picture definition and the picture fluency are adjusted based on the network state information, so that the playing of the coded virtual desktop data is improved to a certain extent along with the change of the network state, and the good user experience during the playing of the coded virtual desktop data is effectively ensured.
Description
Technical Field
The present application relates to the field of video playing technologies, and in particular, to a method, an apparatus, a device, and a computer-readable storage medium for processing virtual desktop data.
Background
Frame rate and image quality parameters are important parameters affecting video playing fluency and image quality. Frame rate (FPS) indicates the number of frames Per Second displayed, and the higher the FPS, the better the fluency. The picture Quality Parameter (QP) is a picture quality Parameter of H264 coding, and the value range is 0-51, and the smaller the QP value, the higher the picture quality. FQP (FPS and QP, the combined parameters of FPS and QP), may represent the current frame quality control effect.
Currently, a large multi-frame quality control strategy in the industry is to realize dynamic adjustment of a frame Rate and image quality based on an Average Bit Rate (ABR) coding mode or a Constant Bit Rate (CBR) coding mode of H264. According to the implementation mode, a network bandwidth needs to be detected in advance, but the network state can fluctuate dynamically, and the setting of the frame rate and the image quality parameters based on the fixed network bandwidth can cause that the network change cannot be responded in time, so that the fluency and the image quality during video playing have large fluctuation, and the user experience is influenced. In addition, the current encoding method tends to adjust the frame rate and the image quality based on the network status, so that the adjustment effect with very blurred image quality may cause poor user experience.
Therefore, how to dynamically adjust the parameters of playing the dynamic picture to achieve better user experience is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
Embodiments of the present application provide a method, an apparatus, a device, and a computer-readable storage medium for processing virtual desktop data, which can dynamically adjust parameters for playing a dynamic picture to achieve better user experience.
In order to solve the foregoing technical problem, an embodiment of the present application provides a method for processing virtual desktop data, where the method is applied to a server and includes:
acquiring network state information;
determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information;
and coding the virtual desktop data according to the picture definition and the picture fluency, and sending the coded virtual desktop data to a client.
Optionally, the image clarity includes image quality parameters corresponding to the virtual desktop data, and the image fluency includes a frame rate corresponding to the virtual desktop data.
Optionally, the network state information includes one or more combinations of network bandwidth information, network delay information, network jitter information, or network packet loss information.
Optionally, before the acquiring the network status information, the method further includes:
pre-configuring the value range of the dynamic picture parameters; the value range of the dynamic picture parameter comprises a value range of picture definition and a value range of picture fluency;
determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information comprises:
and determining the image definition and the image fluency from the value range of the dynamic image parameters according to the network state information.
Optionally, for the determination of the value range of the dynamic picture parameter, the method further includes:
acquiring network state information and picture association parameters within preset time;
and determining the value range of the dynamic picture parameter based on the network state information and the picture correlation parameter.
Optionally, the picture association parameter includes one or more combinations of frame rate information, code rate information, and coding information.
Optionally, the determining, based on the network state information and the picture association parameter, a value range of a dynamic picture parameter includes:
determining the target network state to which the network state information and the picture association parameters belong within the preset time according to the corresponding relation between the set value range and the network state;
and adjusting the value range of the dynamic picture parameters according to the target network state, the network state information in the preset time and the change trend of the picture associated parameters.
Optionally, before determining the picture sharpness and the picture fluency from the value range of the dynamic picture parameter according to the network state information, the method further includes:
collecting coding information;
the determining the picture definition and the picture fluency from the value range of the dynamic picture parameter according to the network state information comprises:
and determining the image definition and the image fluency from the value range of the dynamic image parameters according to the network state information and the coding information.
Optionally, when the target network state is a congestion state, the adjusting the value range of the dynamic picture parameter according to the target network state and the change trend of the network state information and the picture associated parameter within the preset time includes:
under the condition that the network state information or the change trend of the picture associated parameters in the preset time always belongs to the congestion state, adjusting the value range of the dynamic picture parameters according to a first adjustment rule according to the picture definition, the picture fluency, the code rate information and the frame rate information contained in the picture associated parameters;
and under the condition that the network state information and the change trend of the picture associated parameters in the preset time belong to the transition from a congestion state to an idle state or a stable state, maintaining the current value range of the dynamic picture parameters.
Optionally, the determining the picture sharpness and the picture fluency from the value range of the dynamic picture parameter according to the network state information and the coding information includes:
under the condition that the network state information or the coding information belongs to the corresponding value range in the congestion state, adjusting the dynamic picture parameters according to a set first strategy;
and under the condition that the network state information and the coding information do not belong to the corresponding value range in the congestion state, keeping the current value of the dynamic picture parameter.
Optionally, the adjusting the dynamic picture parameter according to the set first policy includes:
under the condition of image quality priority, reducing the frame rate in the dynamic picture parameter according to a set first numerical value;
and under the condition that the fluency is prioritized, increasing the image quality parameters in the dynamic picture parameters according to a set second numerical value.
Optionally, the adjusting, according to a first adjustment rule, a value range of the dynamic picture parameter according to the picture sharpness, the picture fluency, and code rate information and frame rate information included in the picture association parameter includes:
taking a frame rate included by the image fluency as a frame rate upper limit value; taking the image quality parameters included in the image definition as image quality parameter upper limit values;
determining a frame rate lower limit value by using code rate information and frame rate information contained in the picture correlation parameters and a frame rate value included in the picture fluency;
and determining an image quality parameter lower limit value corresponding to the frame rate lower limit value based on the corresponding relation between the set frame rate and the image quality parameter.
Optionally, when the target network state is an idle state, the adjusting the value range of the dynamic picture parameter according to the target network state, the network state information within the preset time, and the change trend of the picture association parameter includes:
under the condition that the network state information and the change trend of the picture associated parameters in the preset time always belong to an idle state, adjusting the value range of the dynamic picture parameters according to a second adjustment rule according to the picture definition, the picture fluency and the set dynamic picture parameter level;
and under the condition that the network state information and the change trend of the picture associated parameters in the preset time belong to the transition from an idle state to a congestion state or a stable state, maintaining the current value range of the dynamic picture parameters.
Optionally, the determining the picture sharpness and the picture fluency from the value range of the dynamic picture parameter according to the network state information and the coding information includes:
under the condition that the network state information and the coding information belong to the corresponding value ranges in the idle state, adjusting the dynamic picture parameters according to a set second strategy;
and under the condition that the network state information or the coding information does not belong to the corresponding value range in the idle state, keeping the current value of the dynamic picture parameter.
Optionally, the adjusting the dynamic picture parameter according to the set second policy includes:
under the condition that the fluency is prior, increasing the frame rate in the dynamic picture parameter according to a set first numerical value;
and when the image quality is prioritized, the image quality parameter in the dynamic picture parameter is reduced according to the set second numerical value.
Optionally, the adjusting, according to the picture definition, the picture fluency, and the set dynamic picture parameter level, the value range of the dynamic picture parameter according to the second adjustment rule includes:
taking a frame rate included by the image fluency as a frame rate lower limit value; taking the image quality parameters included in the image definition as image quality parameter lower limit values;
according to the set frame rate grade, taking the highest frame rate value corresponding to the upper grade adjacent to the lower limit value of the frame rate as the upper limit value of the frame rate; wherein each frame rate level has a frame rate value range corresponding thereto;
according to the set image quality parameter grade, taking the highest image quality parameter value corresponding to the upper grade adjacent to the lower limit value of the image quality parameter as the upper limit value of the image quality parameter; each image quality parameter grade has a corresponding image quality parameter value range.
The embodiment of the application also provides a processing device of the virtual desktop data, which comprises an acquisition unit, a determination unit and an encoding unit;
the acquiring unit is used for acquiring network state information;
the determining unit is used for determining the image definition and the image fluency corresponding to the virtual desktop data to be coded according to the network state information;
and the coding unit is used for coding the virtual desktop data according to the picture definition and the picture fluency and sending the coded data to a client.
An embodiment of the present application further provides a processing device for virtual desktop data, including:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of the processing method of the virtual desktop data.
The embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the processing method of the virtual desktop data are implemented.
According to the technical scheme, the network state information is obtained; the network state information reflects the network state when the dynamic picture is played. Determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information; the image definition and the image fluency are important parameters influencing the viewing experience of a user, the virtual desktop data are coded according to the image definition and the image fluency, and the coded virtual desktop data are sent to the client. In the technical scheme, the picture definition and the picture fluency are adjusted based on the network state information, so that the playing of the coded virtual desktop data is improved to a certain extent along with the change of the network state, and the good user experience during the playing of the coded virtual desktop data is effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a scene schematic diagram of a dynamic picture playing provided in an embodiment of the present application;
fig. 2 is a flowchart of a method for processing virtual desktop data according to an embodiment of the present application;
fig. 3 is a flowchart of a method for adjusting a value range of a dynamic picture parameter according to an embodiment of the present disclosure;
fig. 4 is a flowchart of a method for adjusting a value range of a dynamic picture parameter when a target network state is a congestion state according to an embodiment of the present application;
fig. 5 is a flowchart of a method for adjusting a value range of a dynamic picture parameter when a target network state is an idle state according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a processing apparatus for virtual desktop data according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a processing device for virtual desktop data according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Frame rate and image quality parameters are important parameters affecting video playing fluency and image quality. At present, the intra-industry frame control and quality control strategy adopts an average code rate coding mode or a constant code rate coding mode to realize the dynamic adjustment of the frame rate and the image quality. In the two implementation modes, a network bandwidth needs to be detected in advance, but setting frame rate and image quality parameters based on a fixed network bandwidth can cause that the frame rate and the image quality parameters cannot respond to network changes in time, so that the fluency and the image quality during video playing have large fluctuation, and the user experience is influenced. In addition, the current encoding method tends to adjust the frame rate and the image quality based on the network status, so that the adjustment effect with very blurred image quality may cause poor user experience.
Therefore, the embodiment of the application provides a method, a device, equipment and a computer-readable storage medium for processing virtual desktop data. The processing scheme of the virtual desktop data provided by the embodiment of the application is suitable for desktop cloud scenes. The user can log in any client based on the account information of the user under the desktop cloud scene, the client presents an interface corresponding to the account information at the moment, and any operation on the client is supported by the server. The desktop cloud scene can support interaction between a plurality of clients and a server, a plurality of virtual machines can be arranged on the server, and the virtual machines can be used for storing dynamic pictures to be played. In the embodiment of the present application, a picture capable of realizing dynamic playback is referred to as a dynamic picture. The dynamic picture may be a video stream or a web page picture. For convenience of description, the following description will use a dynamic picture as an example of a video stream.
Fig. 1 is a scene schematic diagram of playing a dynamic picture according to an embodiment of the present application, where when a client needs to play a dynamic picture, the client may transmit a play instruction to a server, and the server may obtain network state information and picture association parameters corresponding to the dynamic picture within a preset time. The server may provide services to a plurality of clients, and fig. 1 illustrates an interaction between one client and the server.
When the client has the dynamic picture playing requirement, the server can acquire network state information; and determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information.
In practical application, in order to prevent the picture definition and the picture fluency from excessively taking values, the server may adjust a value range of a dynamic picture parameter based on network state information and picture associated parameters corresponding to the dynamic picture within a preset time, where the value range of the dynamic picture parameter may include a value range of the picture definition and a value range of the picture fluency. Therefore, the method and the device can ensure that a range basis can be provided when the value of the dynamic picture parameter is subsequently adjusted, the condition that the value of the dynamic picture parameter is too extreme is avoided, and good user experience is ensured when the dynamic picture is played. And the server side can determine the target dynamic picture parameters according to the currently acquired network state information and the value range of the dynamic picture parameters. The server side can encode the virtual desktop data based on the image definition and the image fluency and send the encoded virtual desktop data to the client side, and the client side can play the virtual desktop data in a dynamic image mode on the display screen by decoding the virtual desktop data.
In the embodiment of the application, the target dynamic picture parameters are determined based on the historical data, so that the situation that the adjustment of the dynamic picture parameters is greatly influenced by network fluctuation can be effectively avoided, and the stability of user experience is ensured. The specific value of the dynamic picture parameter is determined based on the current data, and the picture definition and the picture fluency are adjusted in real time in a limited value range, so that the video can be improved to a certain extent along with the change of the network state, and better user experience is achieved.
Next, a method for processing virtual desktop data provided in an embodiment of the present application is described in detail. Fig. 2 is a flowchart of a method for processing virtual desktop data according to an embodiment of the present application, where the method includes:
s201: network state information is obtained.
The network state information may be a parameter for reflecting a network state between the client and the server, and may include one or more combinations of network bandwidth information, network delay information, network jitter information, or network packet loss information.
S202: and determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information.
The image definition may include image quality parameters corresponding to the virtual desktop data. The smaller the value of the image quality parameter is, the higher the image definition is.
The picture fluency may include a frame rate corresponding to the virtual desktop data. The higher the frame rate value, the better the picture fluency.
The network state information reflects the current network quality. In practical applications, when the current network quality is better, it is stated that the current network quality can support higher image definition and image fluency, and thus image quality parameters and frame rates, such as a reduced image quality parameter or an increased frame rate, can be adjusted to improve the image definition and the image fluency. When the current network quality is poor, it is indicated that the current network quality cannot support higher image definition and image fluency, so the image quality parameters and frame rate can be adjusted, for example, the image quality parameters are increased or the frame rate is decreased, so as to decrease the image definition and the image fluency.
S203: and coding the virtual desktop data according to the picture definition and the picture fluency, and sending the coded virtual desktop data to the client.
In the embodiment of the application, the virtual desktop data can be played in a dynamic picture mode, and the corresponding picture definition and the picture fluency can be determined once for each frame of picture where the virtual desktop data is located.
The server side can transmit the encoded virtual desktop data to the client side, so that the client side can play the decoded virtual desktop data in a dynamic picture mode.
According to the technical scheme, the network state information is obtained; the network state information reflects the network state when the dynamic picture is played. Determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information; the image definition and the image fluency are important parameters influencing the viewing experience of a user, the virtual desktop data are coded according to the image definition and the image fluency, and the coded virtual desktop data are sent to the client. In the technical scheme, the picture definition and the picture fluency are adjusted based on the network state information, so that the playing of the coded virtual desktop data is improved to a certain extent along with the change of the network state, and the good user experience during the playing of the coded virtual desktop data is effectively ensured.
In the embodiment of the present application, in order to ensure good user experience during playing of a dynamic picture and avoid the situation that the value of the dynamic picture parameter is too extreme, the value range of the dynamic picture parameter may be configured in advance.
The value range of the dynamic picture parameter may include a value range of picture sharpness and a value range of picture fluency.
When determining the image definition and the image fluency, the image definition and the image fluency can be determined from the value range of the dynamic image parameters according to the network state information.
In order to better fit the change situation of the network environment, the value range of the dynamic picture parameter can be dynamically adjusted.
Fig. 3 is a flowchart of a method for adjusting a value range of a dynamic picture parameter according to an embodiment of the present application, where the method includes:
s301: and acquiring network state information and picture associated parameters corresponding to the dynamic picture within preset time.
The value of the preset time can be set according to actual requirements, and is not limited herein. In practical application, the network state information and the picture associated parameters corresponding to the dynamic picture can be collected once per second, and if the preset time can be set to 10 seconds, the network state information and the picture associated parameters collected within 10 seconds are collected.
The picture association parameter may be used to reflect the quality of the dynamic picture transmitted from the server to the client, and may include one or more combinations of frame rate information, and coding information.
Frame rate information, code rate information, and coding information are all important parameters that affect picture sharpness and picture smoothness.
The encoded information can be used to indicate the situation that the client receives data, and the more data the client receives in a unit time, the smoother the data transmission between the client and the server is.
The frame rate information may include the number of picture frames transmitted from the server to the client in a unit time, and a higher frame rate indicates that data transmission between the client and the server is smoother.
The code rate information may be used to indicate the number of data bits transmitted per unit time at the time of data transmission. The higher the code rate, the more data from the server to the client in a unit time, the clearer the corresponding image quality.
The more comprehensive the parameter types contained in the picture related parameters are, the more accurately the fluency of the dynamic picture transmitted from the server to the client can be represented.
S302: and adjusting the value range of the dynamic picture parameter based on the network state information and the picture correlation parameter.
The network state information and the picture association parameters within the preset time can reflect the network state when the dynamic picture is played. In the embodiment of the present application, the correspondence between the value range and the network state of the parameter can be set for different types of parameters. And according to the corresponding relation between the set value range and the network state, determining the target network state to which the network state information and the picture associated parameter belong within the preset time. And adjusting the value range of the dynamic picture parameters according to the target network state, the network state information in the preset time and the change trend of the picture associated parameters.
The target network state may be any one of all network states. In the embodiment of the present application, the network state may be divided into an initial state, a congested state, an idle state, and a stable state. The initial state is the state in which the original server was. The congestion state indicates that the network quality between the server and the client is poor and the requirements of high fluency and high image quality cannot be met. The idle state shows that the network quality between the server and the client is good, and the requirements of high fluency and high image quality can be met. The stable state shows that the network quality between the server and the client is in a stable state, and the requirements of normal fluency and image quality can be met.
The network quality within the preset time can be obtained according to the target network state, and the change condition of the network quality can be obtained according to the network state information and the change trend of the picture correlation parameters. According to the target network state, the network state information in the preset time and the change trend of the picture correlation parameter, the subsequent change condition of the network quality can be better known, and therefore the value range of the adjusted dynamic picture parameter is more fit with the subsequent actual network environment.
The value range of the dynamic picture parameters ensures that the value of the dynamic picture parameters can be adjusted according to the range, so that the condition that the value of the dynamic picture parameters is too extreme is avoided, and good user experience during playing of the dynamic picture is ensured.
In the embodiment of the present application, the value range of the dynamic picture parameter can be adjusted once every preset time.
When the dynamic image is played, the corresponding image quality parameter and frame rate are specific values, not value ranges, and therefore, the value ranges of the dynamic image parameters need to be obtained, and the final values of the image quality parameter and the frame rate need to be further determined. For the convenience of distinction, the finally determined values of the image quality parameter and the frame rate may be referred to as target moving picture parameters.
In the embodiment of the application, the target dynamic picture parameter can be determined depending on the currently acquired network state information and the value range of the dynamic picture parameter; or determining a target dynamic picture parameter depending on currently acquired coding information and the value range of the dynamic picture parameter; or determining the target dynamic picture parameter according to the currently acquired network state information and coding information and the value range of the dynamic picture parameter. The more comprehensive the parameters are relied on, the more accurate the determined target dynamic picture parameters are.
Both network state information and coding information may be used to reflect the current network quality. In practical application, when the current network quality is good, a parameter closer to the upper limit of the value range is selected from the value range of the dynamic picture parameter as a target dynamic picture parameter; when the current network quality is poor, a parameter closer to the lower limit of the value range is selected from the value range of the dynamic picture parameter as the target dynamic picture parameter.
According to the technical scheme, the network state information and the picture correlation parameters corresponding to the dynamic picture within the preset time are obtained; wherein the picture related parameters comprise one or more combinations of coding information, frame rate information and code rate information. The network state information and the picture association parameters within the preset time reflect the network state when the dynamic picture is played. Based on the network state information and the picture correlation parameters within the preset time, the value range of the dynamic picture parameters can be adjusted. The value range of the dynamic picture parameters can be adjusted to ensure that the range basis can be provided when the value of the dynamic picture parameters is adjusted subsequently, the condition that the value of the dynamic picture parameters is too extreme is avoided, and good user experience is ensured when the dynamic picture is played. And determining the target dynamic picture parameters according to the currently acquired network state information and coding information and the value range of the dynamic picture parameters. The server can encode the dynamic picture according to the target dynamic picture parameter, and transmit the encoded dynamic picture to the client, so that the client can play the decoded dynamic picture conveniently. In the technical scheme, the target dynamic picture parameters are determined based on the historical data, so that the situation that the adjustment of the dynamic picture parameters is greatly influenced by network fluctuation can be effectively avoided, and the stability of user experience is ensured. The specific value of the dynamic picture parameter is determined based on the current data, and the picture definition and the picture fluency are adjusted in the limited value range, so that the playing of the dynamic picture can be improved to a certain extent along with the change of the network state, and better user experience is achieved.
Taking the network states including the initial state, the congestion state, the idle state and the stable state as an example, when the network states are the initial state and the stable state, the value range of the dynamic picture parameter does not need to be adjusted. In the embodiment of the application, the value range of the dynamic picture parameter is mainly adjusted when the network state is a congestion state or an idle state. In the congestion state and the idle state, the adjustment modes of the value ranges of the dynamic picture parameters are different, and then the target network state is taken as the congestion state and the target network state is taken as the idle state respectively for example to be introduced.
Fig. 4 is a flowchart of a method for adjusting a value range of a dynamic picture parameter when a target network state is a congestion state according to an embodiment of the present application, where the method includes:
s401: and judging whether the change trend of the network state information or the picture correlation parameters in the preset time always belongs to the congestion state.
In a case that the change trend of the network state information or the screen related parameter in the preset time always belongs to the congestion state, it is described that the network quality between the server and the client does not become good, and at this time, the server may perform S402.
In the case that the trend of the change of the network state information and the screen related parameters within the preset time belongs to the transition from the congestion state to the idle state or the stable state, it indicates that there is a trend of the network quality between the server and the client becoming better, and at this time, the server may execute S403.
S402: and adjusting the value range of the dynamic picture parameter according to a first adjustment rule according to the picture definition, the picture fluency, the code rate information and the frame rate information contained in the picture association parameter.
Taking a moving picture as an example, the moving picture parameters may include frame rate and picture quality parameters. The frame rate can affect the fluency of video playing, and the image quality parameters can affect the image quality of each frame of image when the video is played.
The value range of the dynamic picture parameter may include a value range of a frame rate and a value range of an image quality parameter.
In consideration of practical applications, in order to enable a user to have a better viewing experience, a corresponding relationship between a frame rate and image quality parameters is often set, and it is ensured that adjustment of the frame rate and the image quality parameters is not too extreme, such as a case where fluency is good and image quality is poor, or a case where fluency is good and image quality is poor.
Therefore, in the embodiment of the present application, the first adjustment rule may include determining a value range of the frame rate, and then determining a value range of the image quality parameter according to a corresponding relationship between the frame rate and the image quality parameter.
In a specific implementation, when the target network state is a congestion state, and the network state information or the change trend of the picture related parameter in the preset time always belongs to the congestion state, it is indicated that the current network quality cannot meet the requirement of the original picture quality parameter, and at this time, the value range of the picture quality parameter can be reduced.
A feasible implementation manner may be to reduce the value range of the image quality parameter to the value range corresponding to the next level according to the corresponding relationship between the set value range and the level of the image quality parameter.
The corresponding relation between the value range and the level of the image quality parameter can be preset manually according to the experience of a user watching the dynamic picture.
In another possible implementation manner, the frame rate included in the image fluency may be used as the frame rate upper limit; the image quality parameter included in the image sharpness is set as an image quality parameter upper limit value. And determining the lower limit value of the frame rate by using the code rate information and the frame rate information contained in the picture correlation parameters. The code rate information and the frame rate information are important parameters influencing the fluency of dynamic picture playing, and in specific implementation, the lower limit value of the frame rate can be obtained by multiplying the normalized code rate and the frame rate.
After the frame rate lower limit is determined, the image quality parameter lower limit corresponding to the frame rate lower limit can be determined based on the set correspondence between the frame rate and the image quality parameter.
S403: and keeping the current value range of the dynamic picture parameters.
Under the condition that the change trend of the network state information and the image associated parameters in the preset time belongs to the transition from the congestion state to the idle state or the stable state, the network environment between the server and the client has a trend of becoming better, and at the moment, the server can continuously maintain the current value range of the dynamic image parameters.
In the embodiment of the application, the value range of the dynamic picture is dynamically adjusted according to the target network state, the network state information within the preset time and the change trend of the picture associated parameters, so that the value range of the dynamic picture can better accord with the change condition of the current network, and the reasonability of the setting of the dynamic picture parameters is ensured.
In the embodiment of the application, after the value range of the dynamic picture parameter is determined, a suitable target dynamic picture parameter, namely, picture definition and picture fluency, can be selected from the value range of the dynamic picture parameter according to the currently acquired network state information and coding information.
In the initial state, the server has the default set dynamic picture parameters, and the target dynamic picture parameters are determined to be the actual adjustment of the original dynamic picture parameters.
Taking the target network state as the congestion state as an example, when the currently acquired network state information or coding information belongs to the corresponding value range in the congestion state, the dynamic picture parameter may be adjusted according to a set first policy.
The set first policy may include a specific manner of adjusting the dynamic picture parameter.
Taking the example that the dynamic picture parameters include the frame rate and the image quality parameters, the better the network state is, the larger the frame rate can be set, and the smaller the image quality parameters can be set. The adjustment of the dynamic picture parameter may be to adjust the frame rate, to adjust the picture quality parameter, or to adjust the frame rate and the picture quality parameter at the same time. Taking the example of adjusting one parameter at a time, under the condition that the currently acquired network state information or coding information belongs to the corresponding value range in the congestion state, the frame rate can be reduced or the image quality parameter can be increased. The magnitude of the parameter adjustment may be preset, and is not limited herein.
Under the condition that the currently acquired network state information and the encoding information do not belong to the corresponding value range in the congestion state, the currently set dynamic picture parameter is shown to be in accordance with the current network state, and the current value of the dynamic picture parameter can be kept at the moment.
In consideration of the difference of the requirements of users on playing dynamic pictures in practical application, some users may have higher requirements on picture quality and have lower requirements on smoothness of stream; some users may have high requirements on fluency and low requirements on picture quality.
Therefore, in practical application, priorities can be set according to different requirements of a user, and when the user has high requirements on image quality and low requirements on flow smoothness, the image quality can be set to be prior. When the requirements of the user on fluency and picture quality are high, the frame rate can be set to be prior.
In a specific implementation, adjusting the dynamic picture parameter according to the set first policy may include, under a condition that the picture quality is prioritized, reducing a frame rate in the dynamic picture parameter according to a set first value; and under the condition that the fluency is prioritized, the image quality parameter in the dynamic picture parameter is increased according to a set second numerical value.
The values of the first numerical value and the second numerical value can be the same or different. For example, both the first numerical value and the second numerical value may be set to 1. When the dynamic picture parameters need to be enlarged, 1 is added on the basis of the original dynamic picture parameters; when the dynamic picture parameter needs to be reduced, 1 is reduced on the basis of the original dynamic picture parameter.
By setting different priorities, diversified requirements of different users can be met, and the determination of the target dynamic picture parameters is more suitable for actual requirements.
Fig. 5 is a flowchart of a method for adjusting a value range of a dynamic picture parameter when a target network state is an idle state according to an embodiment of the present application, where the method includes:
s501: and judging whether the change trend of the network state information or the picture associated parameters in the preset time always belongs to the idle state.
Under the condition that the network state information and the change trend of the picture associated parameters in the preset time always belong to the idle state, it is indicated that the network quality between the server and the client is good, and the higher dynamic picture playing requirement can be met, and at this time, the server can execute step S502.
Under the condition that the change trend of the network state information and the picture associated parameters in the preset time belongs to the transition from the idle state to the congestion state or the stable state, it is described that the network quality between the server and the client has a trend of deterioration, and the value ranges of the picture definition and the picture fluency are originally suitable for the lower playing requirement, at this time, the current value range of the dynamic picture parameters may not be adjusted temporarily, that is, S503 is executed.
S502: and adjusting the value range of the dynamic picture parameters according to the second adjustment rule according to the picture definition, the picture fluency and the set dynamic picture parameter level.
Taking the example that the dynamic picture parameters include the frame rate and the image quality parameters, in practical applications, in order to achieve better user experience, the frame rate level and the image quality parameter level may be divided according to the user experience.
As shown in table 1 below, a frame rate class list of frame rate types and frame rate ranges divided according to user experience is provided in the embodiment of the present application, where each frame rate type has its corresponding meaning, and the meaning is used to indicate how smooth a video can be played in a current frame rate range.
TABLE 1
| FPS type | FPS Range | Means of |
| FPS_SMOOTH_HIGH | [27,30] | Smooth turning over |
| FPS_SMOOTH | [24,26] | Fluency |
| FPS_SMOOTH_LOW | [20,23] | Smooth- |
| FPS_CONTINUSOUS_HIGH | [17,19] | Continuous solution |
| FPS_CONTINUSOUS | [14,16] | (Continuous) |
| FPS_CONTINUSOUS_LOW | [10,13] | Continuous process for preparing |
| FPS_NON_CONTINUSOUS_LOW | [8,9] | Kadun- |
| FPS_NON_CONTINUSOUS | [6,7] | Catton |
| FPS_NON_CONTINUSOUS_HIGH | [2,5] | Kadun + |
It should be noted that the division manner of the frame rate (FPS) ranges and the corresponding meanings in table 1 are only examples, and in practical applications, each FPS range and the corresponding meaning thereof may be adjusted according to a change required by a user.
As shown in table 2 below, each image quality type has a corresponding meaning for indicating the image quality efficiency that can be achieved by playing a video in the current image quality value range, which is provided by the embodiment of the present application and is a list of image quality parameter levels of image quality types and image quality value ranges divided according to user experience.
TABLE 2
| QP type | QP range | Means of |
| QP_SUPER_CLEAR | [25,26] | Super clean |
| QP_HD_HIGH | [27,29] | HD (bright) |
| QP_HD | [30,32] | High definition |
| QP_SD_HIGH | [33,34] | Clear solution |
| QP_SD | [35,36] | Clear and clear |
| QP_BLURRY | [37,39] | Blurring |
| QP_BLURRY_HIGH | [40,45] | Fuzzy c |
It should be noted that the dividing method of the image Quality Parameter (QP) ranges and the corresponding meanings in table 2 are merely examples, and in practical applications, the QP ranges and the corresponding meanings may be adjusted according to a change required by a user.
Under the condition that the network state information and the change trend of the picture associated parameters in the preset time always belong to the idle state, the server side can adjust the value range of the dynamic picture parameters. In a specific implementation, the server may use a frame rate included in the image fluency as a lower limit of the frame rate; the image quality parameter included in the image sharpness is set as the image quality parameter lower limit value.
According to the set frame rate level, taking the highest frame rate value corresponding to the upper level adjacent to the lower limit value of the frame rate as the upper limit value of the frame rate; each frame rate level has a frame rate value range corresponding to the frame rate level.
By means of the frame rate level list according to table 1, the highest frame rate value corresponding to the upper level adjacent to the lower frame rate limit can be determined.
According to the set image quality parameter grade, taking the highest image quality parameter value corresponding to the upper grade adjacent to the lower limit value of the image quality parameter as the upper limit value of the image quality parameter; each image quality parameter level has a corresponding image quality parameter value range.
By referring to the image quality parameter rank list in table 2, the highest image quality parameter value corresponding to the upper rank adjacent to the lower limit of the image quality parameter can be specified.
S503: and keeping the current value range of the dynamic picture parameters.
Under the condition that the change trend of the network state information and the picture associated parameters in the preset time belongs to the transition from the idle state to the congestion state or the stable state, the change trend indicates that the network quality between the server and the client is changed, and the value ranges of the picture definition and the picture fluency are originally suitable for lower playing requirements, so that the current value range of the dynamic picture parameters can be maintained.
In the embodiment of the application, the value range of the dynamic picture parameter is dynamically adjusted according to the picture definition, the picture fluency and the set dynamic picture parameter level, so that the value range of the dynamic picture can better accord with the change condition of the current network, and the reasonability of the setting of the dynamic picture parameter is ensured.
In the initial state, the server has the default set dynamic picture parameters, and the target dynamic picture parameters are determined to be the actual adjustment of the original dynamic picture parameters.
Taking the target network state as the idle state as an example, when the currently acquired network state information and the encoding information belong to the value range corresponding to the idle state, the dynamic picture parameter may be adjusted according to a set second policy.
The set second policy may include a specific manner of adjusting the dynamic picture parameter.
Taking the example that the dynamic picture parameters include the frame rate and the image quality parameters, the better the network state is, the larger the frame rate can be set, and the smaller the image quality parameters can be set. The adjustment of the dynamic picture parameter may be to adjust the frame rate, to adjust the picture quality parameter, or to adjust the frame rate and the picture quality parameter at the same time. Taking the adjustment of one parameter at a time as an example, under the condition that the currently acquired network state information or coding information belongs to the corresponding value range in the idle state, the frame rate can be increased or the image quality parameter can be decreased. The magnitude of the parameter adjustment may be preset, and is not limited herein.
Under the condition that the currently acquired network state information or the currently acquired coding information both belong to the corresponding value range in the idle state, the currently set dynamic picture parameter is shown to be in accordance with the current network state, and the current value of the dynamic picture parameter can be maintained at the moment.
In consideration of the difference of the requirements of users on playing dynamic pictures in practical application, some users may have higher requirements on picture quality and have lower requirements on smoothness of stream; some users may have high requirements on fluency and low requirements on picture quality.
Therefore, in practical application, priorities can be set according to different requirements of a user, and when the user has high requirements on image quality and low requirements on flow smoothness, the image quality can be set to be prior. When the requirements of the user on fluency and picture quality are high, the frame rate can be set to be prior.
In a specific implementation, adjusting the dynamic picture parameter according to the set second policy may include, under a condition that the fluency is prioritized, increasing a frame rate in the dynamic picture parameter according to a set first value; and when the image quality is prioritized, the image quality parameter in the dynamic picture parameter is adjusted to be smaller according to the set second numerical value.
The values of the first numerical value and the second numerical value can be the same or different. For example, both the first numerical value and the second numerical value may be set to 1. When the dynamic picture parameters need to be enlarged, 1 is added on the basis of the original dynamic picture parameters; when the dynamic picture parameter needs to be reduced, 1 is reduced on the basis of the original dynamic picture parameter.
Different priorities are set based on different requirements of users, so that different user requirements can be met, and the determination of the target dynamic picture parameters can be more fit with the actual requirements of the users.
Fig. 6 is a schematic structural diagram of a processing apparatus for virtual desktop data, which includes an obtaining unit 61, a determining unit 62, and an encoding unit 63;
an obtaining unit 61, configured to obtain network status information;
a determining unit 62, configured to determine, according to the network state information, a picture sharpness and a picture fluency corresponding to the virtual desktop data to be encoded;
and the encoding unit 63 is configured to encode the virtual desktop data according to the picture definition and the picture fluency, and send the encoded data to the client.
Optionally, the image sharpness includes image quality parameters corresponding to the virtual desktop data, and the image fluency includes a frame rate corresponding to the virtual desktop data.
Optionally, the network status information includes one or more combinations of network bandwidth information, network delay information, network jitter information, or network packet loss information.
Optionally, a configuration unit is further included;
the configuration unit is used for configuring the value range of the dynamic picture parameter in advance; the value range of the dynamic picture parameter comprises a value range of picture definition and a value range of picture fluency;
and the determining unit is used for determining the image definition and the image fluency from the value range of the dynamic image parameters according to the network state information.
Optionally, the device further includes a parameter obtaining unit and a range determining unit for determining the value range of the dynamic picture parameter;
the parameter acquisition unit is used for acquiring network state information and picture association parameters within preset time;
and the range determining unit is used for determining the value range of the dynamic picture parameter based on the network state information and the picture correlation parameter.
Optionally, the picture association parameter includes one or more combinations of frame rate information, code rate information, and coding information.
Optionally, the range determining unit comprises a state determining subunit and a range adjusting subunit;
the state determining subunit is used for determining the network state information and the target network state to which the picture association parameter belongs within the preset time according to the corresponding relation between the set value range and the network state;
and the range adjusting subunit is used for adjusting the value range of the dynamic picture parameters according to the target network state, the network state information in the preset time and the change trend of the picture associated parameters.
Optionally, the device further comprises an acquisition unit;
the acquisition unit is used for acquiring coding information;
and the determining unit is used for determining the image definition and the image fluency from the value range of the dynamic image parameters according to the network state information and the coding information.
Optionally, when the target network state is a congestion state, the range adjusting subunit is configured to, when the network state information or the change trend of the picture association parameter in the preset time always belongs to the congestion state, adjust the value range of the dynamic picture parameter according to a first adjustment rule according to the picture definition, the picture fluency, the code rate information and the frame rate information included in the picture association parameter;
and under the condition that the network state information and the change trend of the picture associated parameters in the preset time belong to the transition from the congestion state to the idle state or the stable state, maintaining the current value range of the dynamic picture parameters.
Optionally, the determining unit comprises a first adjusting subunit and a first holding subunit;
the first adjusting subunit is configured to adjust the dynamic picture parameter according to a set first policy when the network state information or the coding information belongs to a value range corresponding to the congestion state;
and the first holding subunit is used for holding the current value of the dynamic picture parameter under the condition that the network state information and the coding information do not belong to the corresponding value range in the congestion state.
Optionally, the first adjusting subunit is configured to, under the condition that the image quality is prioritized, decrease the frame rate in the dynamic picture parameter according to a set first value;
and under the condition that the fluency is prioritized, the image quality parameter in the dynamic picture parameter is increased according to a set second numerical value.
Optionally, the range adjusting subunit is configured to use a frame rate included in the image fluency as an upper limit value of the frame rate; taking the image quality parameters included in the image definition as the image quality parameter upper limit value;
determining a frame rate lower limit value by using code rate information and frame rate information contained in the picture correlation parameters and a frame rate value contained in the picture fluency;
and determining the lower limit value of the image quality parameter corresponding to the lower limit value of the frame rate based on the corresponding relation between the set frame rate and the image quality parameter.
Optionally, when the target network state is an idle state, the range adjusting subunit is configured to, when the network state information and the change trend of the picture associated parameter in the preset time all the time belong to the idle state, adjust the value range of the dynamic picture parameter according to a second adjustment rule according to the picture definition, the picture smoothness, and the set dynamic picture parameter level;
and under the condition that the network state information and the change trend of the picture associated parameters in the preset time belong to the transition from the idle state to the congestion state or the stable state, maintaining the current value range of the dynamic picture parameters.
Optionally, the determining unit comprises a second adjusting subunit and a second holding subunit;
the second adjusting subunit is used for adjusting the dynamic picture parameters according to a set second strategy under the condition that the network state information and the coding information belong to corresponding value ranges in an idle state;
and the second holding subunit is used for holding the current value of the dynamic picture parameter under the condition that the network state information or the coding information does not belong to the corresponding value range in the idle state.
Optionally, the second adjusting subunit is configured to, under the condition that the fluency is prioritized, increase the frame rate in the dynamic picture parameter according to the set first value;
and when the image quality is prioritized, the image quality parameter in the dynamic picture parameter is adjusted to be smaller according to the set second numerical value.
Optionally, the range adjusting subunit is configured to use a frame rate included in the image fluency as a frame rate lower limit value; taking the image quality parameters included in the image definition as image quality parameter lower limit values;
according to the set frame rate level, taking the highest frame rate value corresponding to the upper level adjacent to the lower limit value of the frame rate as the upper limit value of the frame rate; wherein each frame rate level has a frame rate value range corresponding thereto;
according to the set image quality parameter grade, taking the highest image quality parameter value corresponding to the upper grade adjacent to the lower limit value of the image quality parameter as the upper limit value of the image quality parameter; each image quality parameter level has a corresponding image quality parameter value range.
For the description of the features in the embodiment corresponding to fig. 6, reference may be made to the related descriptions in the embodiments corresponding to fig. 2 to fig. 5, which are not repeated here.
According to the technical scheme, the network state information is obtained; the network state information reflects the network state when the dynamic picture is played. Determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information; the image definition and the image fluency are important parameters influencing the viewing experience of a user, the virtual desktop data are coded according to the image definition and the image fluency, and the coded virtual desktop data are sent to the client. In the technical scheme, the picture definition and the picture fluency are adjusted based on the network state information, so that the playing of the coded virtual desktop data is improved to a certain extent along with the change of the network state, and the good user experience during the playing of the coded virtual desktop data is effectively ensured.
Fig. 7 is a schematic structural diagram of a processing device for virtual desktop data according to an embodiment of the present application, including:
a memory 71 for storing a computer program;
a processor 72 for executing the computer program to implement the steps of the processing method of the virtual desktop data as described above.
The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when being executed by a processor, the computer program implements the steps of the processing method for the virtual desktop data.
The foregoing details a method, an apparatus, a device, and a computer-readable storage medium for processing virtual desktop data provided in the embodiments of the present application. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Claims (13)
1. A processing method of virtual desktop data is applied to a server and comprises the following steps:
acquiring network state information;
determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information;
and coding the virtual desktop data according to the picture definition and the picture fluency, and sending the coded virtual desktop data to a client.
2. The method of claim 1, wherein the image sharpness comprises image quality parameters corresponding to the virtual desktop data, and the image fluency comprises a frame rate corresponding to the virtual desktop data.
3. The method for processing virtual desktop data according to claim 1, wherein the network status information includes one or more combinations of network bandwidth information, network latency information, network jitter information, or network packet loss information.
4. The method for processing virtual desktop data according to claim 1, further comprising, before said obtaining network status information:
pre-configuring the value range of the dynamic picture parameters; the value range of the dynamic picture parameter comprises a value range of picture definition and a value range of picture fluency;
determining the picture definition and the picture fluency corresponding to the virtual desktop data to be coded according to the network state information comprises:
and determining the image definition and the image fluency from the value range of the dynamic image parameters according to the network state information.
5. The method for processing virtual desktop data according to claim 4, wherein for determining the value range of the dynamic picture parameter, the method further comprises:
acquiring network state information and picture association parameters within preset time;
and determining the value range of the dynamic picture parameter based on the network state information and the picture correlation parameter.
6. The method of claim 5, wherein the picture-related parameters comprise one or more combinations of frame rate information, code rate information, and coding information.
7. The method for processing virtual desktop data according to claim 5, wherein the determining a value range of a dynamic picture parameter based on the network status information and the picture association parameter comprises:
determining the target network state to which the network state information and the picture association parameters belong within the preset time according to the corresponding relation between the set value range and the network state;
and adjusting the value range of the dynamic picture parameters according to the target network state, the network state information in the preset time and the change trend of the picture associated parameters.
8. The method for processing virtual desktop data according to claim 7, further comprising, before determining the image sharpness and the image fluency from the value range of the dynamic image parameter according to the network status information:
collecting coding information;
the determining the picture definition and the picture fluency from the value range of the dynamic picture parameter according to the network state information comprises:
and determining the image definition and the image fluency from the value range of the dynamic image parameters according to the network state information and the coding information.
9. The method for processing virtual desktop data according to claim 8, wherein when the target network status is a congestion status, the adjusting a value range of a dynamic screen parameter according to the target network status and a change trend of the network status information and the screen related parameter within the preset time includes:
under the condition that the network state information or the change trend of the picture associated parameters in the preset time always belongs to the congestion state, adjusting the value range of the dynamic picture parameters according to a first adjustment rule according to the picture definition, the picture fluency, the code rate information and the frame rate information contained in the picture associated parameters;
and under the condition that the network state information and the change trend of the picture associated parameters in the preset time belong to the transition from a congestion state to an idle state or a stable state, maintaining the current value range of the dynamic picture parameters.
10. The method for processing virtual desktop data according to claim 8, wherein when the target network state is an idle state, the adjusting a value range of a dynamic screen parameter according to the target network state and a change trend of the network state information and the screen related parameter within the preset time includes:
under the condition that the network state information and the change trend of the picture associated parameters in the preset time always belong to an idle state, adjusting the value range of the dynamic picture parameters according to a second adjustment rule according to the picture definition, the picture fluency and the set dynamic picture parameter level;
and under the condition that the network state information and the change trend of the picture associated parameters in the preset time belong to the transition from an idle state to a congestion state or a stable state, maintaining the current value range of the dynamic picture parameters.
11. The processing device of the virtual desktop data is characterized by comprising an acquisition unit, a determination unit and an encoding unit;
the acquiring unit is used for acquiring network state information;
the determining unit is used for determining the image definition and the image fluency corresponding to the virtual desktop data to be coded according to the network state information;
and the coding unit is used for coding the virtual desktop data according to the picture definition and the picture fluency and sending the coded data to a client.
12. An apparatus for processing virtual desktop data, comprising:
a memory for storing a computer program;
a processor for executing said computer program to implement the steps of a method for processing virtual desktop data according to any of claims 1 to 10.
13. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for processing virtual desktop data according to any one of claims 1 to 10.
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