CN117135408A - Video transmission method of cloud desktop - Google Patents

Video transmission method of cloud desktop Download PDF

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Publication number
CN117135408A
CN117135408A CN202311370200.1A CN202311370200A CN117135408A CN 117135408 A CN117135408 A CN 117135408A CN 202311370200 A CN202311370200 A CN 202311370200A CN 117135408 A CN117135408 A CN 117135408A
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preset
video
condition
video transmission
control module
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CN202311370200.1A
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CN117135408B (en
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朱正辉
赵定金
余吉昌
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Guangdong Baolun Electronics Co ltd
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Guangdong Baolun Electronics Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/08—Protocols specially adapted for terminal emulation, e.g. Telnet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention relates to the technical field of video transmission, in particular to a video transmission method of a cloud desktop, which comprises the following steps: step S1, a cloud server transmits compressed videos to a user terminal; step S2, the central control module judges whether the video transmission efficiency is within an allowable range according to the transmission delay time length of the compressed video; step S3, the central control module judges that the video transmission efficiency is lower than the allowable range, and primarily adjusts the terminal memory duty ratio in the process of compressed video transmission, or adjusts the network bandwidth of the virtual machine according to the video demand evaluation parameters; step S4, the central control module judges whether the video transmission stability is within an allowable range according to the pause time length of the video picture; and S5, the central control module performs secondary adjustment on the memory ratio of the terminal in the process of transmitting the compressed video, or adjusts the number of video transmission channels according to the video clamping times.

Description

Video transmission method of cloud desktop
Technical Field
The invention relates to the technical field of video transmission, in particular to a video transmission method of a cloud desktop.
Background
The cloud desktop is also called desktop virtualization and cloud computer, and is a new mode for replacing the traditional computer; after the cloud desktop is adopted, a user does not need to purchase a host computer, all components such as a CPU, a memory, a hard disk and the like contained in the host computer are virtualized in the back-end server, and a single high-performance server can virtualize 1-50 unequal virtual hosts. The front-end equipment is mainly a display device and is used for displaying the virtual desktop, and after the client is installed on the front-end equipment, the data can be received by accessing the virtual machine host on the back-end server through a special communication protocol so as to be displayed on the front-end equipment.
Chinese patent publication No.: CN115052043a discloses a video transmission method, electronic equipment, device and medium of cloud desktop, comprising the following steps: when the desktop virtual machine detects that the preset desktop updating condition is met, the generated desktop image data carrying the identification information of the desktop virtual machine is sent to a streaming media server; the streaming media server stores the desktop image data into a preset streaming media address corresponding to the desktop virtual machine according to the identification information carried in the desktop image data; according to the association relation between the preset client and the preset streaming media address, the streaming media server sends target desktop image data stored in the target preset streaming media address to the first target client, so that the following problems exist in the video transmission method, the electronic equipment, the device and the medium of the cloud desktop: the video transmission security is degraded due to inaccurate determination of video transmission stability reflected by the video frame's stuck-at time.
Disclosure of Invention
Therefore, the invention provides a video transmission method of a cloud desktop, which is used for solving the problem that in the prior art, the video transmission safety is reduced due to inaccurate judgment of video transmission stability reflected by the long-term blocking of a video picture.
In order to achieve the above object, the present invention provides a video transmission method of a cloud desktop, including: step S1, a user terminal sends a video transmission request to a cloud server, and a virtual machine of the cloud server is used for compressing video to be transmitted and transmitting the compressed video to the user terminal; step S2, counting the transmission time length of the compressed video and calculating the transmission delay time length of the compressed video, and judging whether the video transmission efficiency is within an allowable range or not by the central control module according to the transmission delay time length of the compressed video; step S3, when the central control module judges that the video transmission efficiency is lower than the allowable range, the terminal memory duty ratio in the compressed video transmission process is adjusted for the first time, or the network bandwidth of the virtual machine is adjusted according to the video demand evaluation parameters; step S4, when the initial adjustment of the memory ratio of the terminal in the transmission process of the compressed video is completed, decompressing the compressed video to play the video, and judging whether the video transmission stability is in an allowable range or not according to the length of the video picture in the pause period by the central control module; and S5, when the video transmission stability is judged to be lower than the allowable range, the central control module secondarily adjusts the memory ratio of the terminal in the process of transmitting the compressed video, or adjusts the number of video transmission channels according to the video blocking times.
Further, the central control module determines whether the video transmission efficiency is within the allowable range according to three determination methods of the delay time of the compressed video transmission, wherein,
the first judging method is that the central control module judges that the video transmission efficiency is within an allowable range under the condition of presetting a first delay time length;
the second judging method is that the central control module judges that the video transmission efficiency is lower than the allowable range under the condition of presetting a second delay time length, and adjusts the terminal memory duty ratio in the process of transmitting the compressed video to the corresponding duty ratio by calculating the difference value between the delay time length of the compressed video transmission and the preset first delay time length;
the third judging method is that the central control module judges that the video transmission efficiency is lower than the allowable range under the condition of presetting a third delay time length, preliminarily judges that the virtual machine load exceeds the allowable range, and judges whether the virtual machine load is in the allowable range for the second time according to the video demand evaluation parameters;
the preset first delay time length condition is that the delay time length of compressed video transmission is less than or equal to the preset first delay time length; the condition of the preset second delay time length is that the delay time length of the compressed video transmission is longer than the preset first delay time length and smaller than or equal to the preset second delay time length; the condition of the preset third delay time length is that the delay time length of compressed video transmission is longer than the preset second delay time length; the preset first delay time period is smaller than the preset second delay time period.
Further, the central control module determines two adjustment modes for the terminal memory ratio in the compressed video transmission process according to the difference value between the delay time length of the compressed video transmission and the preset first delay time length under the condition of the preset second delay time length, wherein,
the first adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a first memory duty ratio by using a preset first memory adjustment coefficient under the condition of a preset first delay duration difference value;
the second adjusting mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a second memory duty ratio by using a preset second memory adjusting coefficient under the condition of presetting a second delay time difference value;
the difference value condition of the preset first delay time length is that the difference value between the delay time length of compressed video transmission and the preset first delay time length is smaller than or equal to the difference value of the preset delay time length; the difference value condition of the preset second delay time length is that the difference value between the delay time length of the compressed video transmission and the preset first delay time length is larger than the difference value of the preset delay time length; the preset first memory adjustment coefficient is smaller than the preset second memory adjustment coefficient.
Further, the central control module determines whether the virtual machine load exceeds the allowable range according to the video demand evaluation parameter under the condition of the preset third delay time length, wherein,
the first load judging method is that the central control module judges that the load of the virtual machine is in an allowable range under the condition of presetting a first evaluation parameter;
the second load judging method is that the central control module judges that the load of the virtual machine exceeds the allowable range under the condition of presetting a second evaluation parameter, and the network bandwidth of the virtual machine is adjusted to the corresponding bandwidth by calculating the difference value between the video demand evaluation parameter and the preset evaluation parameter;
the first preset evaluation parameter condition is that the video demand evaluation parameter is smaller than or equal to a preset evaluation parameter; the preset second evaluation parameter condition is that the video demand evaluation parameter is larger than the preset evaluation parameter.
The calculation formula of the video demand evaluation parameter is as follows:
wherein P is a video demand evaluation parameter, A is a video duration,the video duration weight coefficient, B is the video transmission times, B is the video transmission times weight coefficient, C is the video click times, C is the video click times weight coefficient, wherein, ，/>，/>。
Further, the central control module determines two adjustment modes for the network bandwidth of the virtual machine according to the difference value between the video demand evaluation parameter and the preset evaluation parameter under the condition of the preset second evaluation parameter, wherein,
the first bandwidth adjusting mode is that the central control module adjusts the network bandwidth of the virtual machine to a first bandwidth by using a preset first bandwidth adjusting coefficient under the condition of presetting a first evaluation parameter difference value;
the second bandwidth adjusting mode is that the central control module adjusts the network bandwidth of the virtual machine to two bandwidths by using a preset second bandwidth adjusting coefficient under the condition of presetting a second evaluation parameter difference value;
the preset first evaluation parameter difference condition is that the difference value between the video demand evaluation parameter and the preset evaluation parameter is smaller than or equal to the preset evaluation parameter difference value; the preset second evaluation parameter difference condition is that the difference between the video demand evaluation parameter and the preset evaluation parameter is larger than the preset evaluation parameter difference; the preset first bandwidth adjustment coefficient is smaller than the preset second bandwidth adjustment coefficient.
Further, when the central control module completes the initial adjustment of the terminal memory ratio in the transmission process of the compressed video, three judging methods for determining whether the video transmission stability is within the allowable range according to the length of the video picture in the pause period are provided, wherein,
The first transmission stability judging method is that the central control module judges that the video transmission stability is within an allowable range under the condition of presetting a first time strip;
the second transmission stability judging method is that the central control module judges that the video transmission stability is lower than the allowable range under the condition of a preset second duration, and the terminal memory duty ratio in the process of transmitting the compressed video is secondarily adjusted to a second corresponding duty ratio by calculating the difference value between the blocking duration of the video picture and the preset first blocking duration;
the third transmission stability judging method is that the central control module judges that the video transmission stability is lower than the allowable range under the condition of presetting a third duration, primarily judges that the transmission safety is lower than the allowable range, and judges whether the transmission safety is in the allowable range for the second time according to the video jamming times;
the preset first time strip condition is that the blocking duration of the video picture is smaller than or equal to the preset first blocking duration; the preset second duration condition is that the length of the clamping time of the video picture is longer than the preset first clamping duration and is smaller than or equal to the preset second clamping duration; the preset third duration condition is that the clamping duration of the video picture is longer than the preset second clamping duration; the preset first clamping time length is smaller than the preset second clamping time length.
Further, the central control module determines two secondary adjustment modes aiming at the memory ratio of the terminal in the transmission process of the compressed video according to the difference value between the cartoon duration of the video picture and the preset first cartoon duration under the condition of the preset second duration, wherein,
the first secondary adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a third memory duty ratio by using a preset third memory adjustment coefficient under the condition of a preset first time length difference value;
the second secondary adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a fourth memory duty ratio by using a preset fourth memory adjustment coefficient under the condition of presetting a second duration difference value;
the preset first time length difference condition is that the difference between the clamping duration of the video picture and the preset first clamping duration is smaller than or equal to the preset clamping duration difference; the preset second duration difference value condition is that the difference value between the blocking duration of the video picture and the preset first blocking duration is larger than the preset blocking duration difference value; the preset third memory adjustment coefficient is smaller than the preset fourth memory adjustment coefficient.
Further, the central control module determines two secondary judging methods of whether the transmission safety is within the allowable range according to the video clip times under the condition of presetting a third duration, wherein,
The first transmission safety secondary judging method is that the central control module judges that the transmission safety is within an allowable range under the condition of a preset first time number;
the second transmission safety secondary judging method is that the central control module judges that the transmission safety is lower than the allowable range under the condition of the preset second times, and the number of video transmission channels is adjusted to the corresponding number by calculating the difference value between the video jamming times and the preset jamming times;
the preset first time number condition is that video clamping times are smaller than or equal to preset clamping times; the preset second time condition is that the video clamping times are larger than the preset clamping times.
Further, the central control module determines two adjusting modes for the number of video transmission channels according to the difference value between the video jamming times and the preset jamming times under the condition of the preset second times, wherein,
the first channel number adjusting mode is that the central control module adjusts the number of video transmission channels to a first number by using a preset first number adjusting coefficient under the condition of a preset first number difference value;
the second channel number adjusting mode is that the central control module adjusts the number of video transmission channels to a second number by using a preset second number adjusting coefficient under the condition of a preset second number difference value;
The preset first time difference value condition is that the difference value between the video jamming times and the preset jamming times is smaller than or equal to the preset jamming times difference value; the preset second time difference condition is that the difference between the video clamping times and the preset clamping times is larger than the preset clamping times difference; the preset first number adjustment factor is smaller than the preset second number adjustment factor.
Compared with the prior art, the method has the beneficial effects that the compressed video transmission process of the cloud desktop is detected and regulated by setting the steps S1-S5, the central control module reduces the burden of the network bandwidth of the virtual machine in the compressed video transmission process so as to improve the video transmission rate by regulating the terminal memory ratio in the compressed video transmission process, or regulates the network bandwidth of the virtual machine according to the video demand evaluation parameters, realizes the virtuous circle of video transmission by preferentially transmitting the video with higher demand level, influences the fluency of the subsequent video playing after the terminal memory ratio in the compressed video transmission process is increased, realizes the memory balance of video transmission and playing by secondarily regulating the terminal memory ratio in the compressed video transmission process, or realizes the improvement of the safety of video transmission by regulating the number of video transmission channels according to the video cartoon times, and realizes the improvement of the video transmission stability.
Further, the method comprises the steps that the video transmission efficiency is judged by the central control module through setting a preset first delay time length and a preset second delay time length, the video transmission efficiency of the cloud desktop depends on the network bandwidth of the virtual machine, the terminal memory duty ratio in the compressed video transmission process is adjusted by the central control module through setting a preset delay time length difference value, a preset first memory adjusting coefficient and a preset second memory adjusting coefficient under the preset second delay time length condition, the influence of the network bandwidth on the video transmission is reduced by increasing the terminal memory duty ratio, and the stability of video transmission is further improved.
Further, the method of the invention judges whether the load of the virtual machine exceeds the allowable range according to the video demand evaluation parameter by setting the preset evaluation parameter under the condition of the preset third delay time, and the central control module preferentially transmits the video with higher demand level in the process of transmitting the video by the cloud desktop, so that the video transmission is graded and regulated by the central control module, and the stability of video transmission is further improved, because the virtual machine needs to transmit the video to a plurality of terminals simultaneously in the process of transmitting the compressed video by the cloud desktop, and the network bandwidth occupancy rate is too high to further reduce the video transmission rate.
Further, according to the method, the preset blocking times are set, the central control module judges whether the transmission safety is within the allowable range according to the video blocking times, the video is blocked or attacked by viruses in the transmission process, the video fragments are lost, the integrity and fluency of the video are reduced, the number of video transmission channels is regulated by the central control module through setting a preset blocking times difference value, a preset first number regulating coefficient and a preset second number regulating coefficient, the video safety is improved through increasing the video transmission channels, and the video transmission stability is further improved.
Drawings
Fig. 1 is an overall flowchart of a video transmission method of a cloud desktop according to an embodiment of the present invention;
fig. 2 is a specific flowchart of step S1 of a video transmission method of a cloud desktop according to an embodiment of the present invention;
fig. 3 is a specific flowchart of step S3 of a video transmission method of a cloud desktop according to an embodiment of the present invention;
fig. 4 is a specific flowchart of step S5 of the video transmission method of the cloud desktop according to the embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
Fig. 1, fig. 2, fig. 3, and fig. 4 show an overall flowchart of the video transmission method of the cloud desktop, a specific flowchart of step S1, a specific flowchart of step S3, and a specific flowchart of step S5, respectively. The invention discloses a video transmission method of a cloud desktop, which comprises the following steps:
step S1, a user terminal sends a video transmission request to a cloud server, and a virtual machine of the cloud server is used for compressing video to be transmitted and transmitting the compressed video to the user terminal;
step S2, counting the transmission time length of the compressed video and calculating the transmission delay time length of the compressed video, and judging whether the video transmission efficiency is within an allowable range or not by the central control module according to the transmission delay time length of the compressed video;
step S3, when the central control module judges that the video transmission efficiency is lower than the allowable range, the terminal memory duty ratio in the compressed video transmission process is adjusted for the first time, or the network bandwidth of the virtual machine is adjusted according to the video demand evaluation parameters;
Step S4, when the initial adjustment of the memory ratio of the terminal in the transmission process of the compressed video is completed, decompressing the compressed video to play the video, and judging whether the video transmission stability is in an allowable range or not according to the length of the video picture in the pause period by the central control module;
and S5, when the video transmission stability is judged to be lower than the allowable range, the central control module secondarily adjusts the memory ratio of the terminal in the process of transmitting the compressed video, or adjusts the number of video transmission channels according to the video blocking times.
Specifically, the specific steps of the step S1 are as follows:
step S11, a user terminal sends a video transmission request to a cloud server;
step S12, compressing the video to be transmitted by the virtual machine of the cloud server;
and step S13, the virtual machine of the cloud server transmits the compressed video to the user terminal.
Specifically, the specific steps of the step S3 are as follows:
step S31, the central control module judges that the video transmission efficiency is lower than the allowable range according to the transmission delay time length of the compressed video;
step S32, the central control module carries out primary adjustment on the memory ratio of the terminal in the transmission process of the compressed video, or judges whether the load of the virtual machine exceeds the allowable range according to the video demand evaluation parameters;
And step S33, the central control module judges that the load of the virtual machine exceeds the allowable range and adjusts the network bandwidth of the virtual machine.
Specifically, the specific steps of the step S5 are as follows:
step S51, the central control module judges that the video transmission stability is lower than the allowable range according to the pause time length of the video picture;
step S52, the central control module performs secondary adjustment on the memory ratio of the terminal in the transmission process of the compressed video, or judges whether the transmission safety is within an allowable range according to the video clamping times;
and step S53, the central control module adjusts the number of video transmission channels when judging that the transmission safety is lower than the allowable range.
Specifically, the user terminal is provided with an operation memory, when the transmission efficiency is reduced in the transmission process of the compressed video, the operation memory for transmitting the compressed video is expanded by the user terminal memory so as to more quickly receive the compressed video transmitted by the virtual machine, and the transmission efficiency of the video is further improved.
According to the method, the compressed video transmission process of the cloud desktop is detected and regulated by setting the steps S1-S5, the central control module reduces the burden of network bandwidth of the virtual machine in the compressed video transmission process so as to improve the video transmission rate by regulating the terminal memory ratio in the compressed video transmission process, or regulates the network bandwidth of the virtual machine according to video demand evaluation parameters, benign circulation of video transmission is realized by preferentially transmitting videos with higher demand level, smoothness of subsequent video playing is affected after the terminal memory ratio in the compressed video transmission process is increased, memory balance of video transmission and playing is realized by secondarily regulating the terminal memory ratio in the compressed video transmission process, or safety of video transmission is improved by regulating the number of video transmission channels according to video clamping times, and stability of video transmission is improved.
With continued reference to fig. 3, the central control module determines whether the video transmission efficiency is within the allowable range according to the delay time of the compressed video transmission, wherein,
the first judging method is that the central control module judges that the video transmission efficiency is within an allowable range under the condition of presetting a first delay time length;
the second judging method is that the central control module judges that the video transmission efficiency is lower than the allowable range under the condition of presetting a second delay time length, and adjusts the terminal memory duty ratio in the process of transmitting the compressed video to the corresponding duty ratio by calculating the difference value between the delay time length of the compressed video transmission and the preset first delay time length;
the third judging method is that the central control module judges that the video transmission efficiency is lower than the allowable range under the condition of presetting a third delay time length, preliminarily judges that the virtual machine load exceeds the allowable range, and judges whether the virtual machine load is in the allowable range for the second time according to the video demand evaluation parameters;
the preset first delay time length condition is that the delay time length of compressed video transmission is less than or equal to the preset first delay time length; the condition of the preset second delay time length is that the delay time length of the compressed video transmission is longer than the preset first delay time length and smaller than or equal to the preset second delay time length; the condition of the preset third delay time length is that the delay time length of compressed video transmission is longer than the preset second delay time length; the preset first delay time period is smaller than the preset second delay time period.
Specifically, the delay time T of the compressed video transmission is recorded as T1, the preset first delay time T2, and the difference between the delay time of the compressed video transmission and the preset first delay time T is recorded as Δt, Δt=t-T1.
With continued reference to fig. 3, the central control module determines two adjustment modes for the memory ratio of the terminal in the process of transmitting the compressed video according to the difference between the delay time of the compressed video transmission and the preset first delay time under the condition of the preset second delay time, wherein,
the first adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a first memory duty ratio by using a preset first memory adjustment coefficient under the condition of a preset first delay duration difference value;
the second adjusting mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a second memory duty ratio by using a preset second memory adjusting coefficient under the condition of presetting a second delay time difference value;
the difference value condition of the preset first delay time length is that the difference value between the delay time length of compressed video transmission and the preset first delay time length is smaller than or equal to the difference value of the preset delay time length; the difference value condition of the preset second delay time length is that the difference value between the delay time length of the compressed video transmission and the preset first delay time length is larger than the difference value of the preset delay time length; the preset first memory adjustment coefficient is smaller than the preset second memory adjustment coefficient.
Specifically, the difference value of the preset delay time length is denoted as Δt0, the preset first memory adjustment coefficient is denoted as α1, the preset second memory adjustment coefficient is denoted as α2, wherein 1 < α1 < α2, the terminal memory duty ratio in the compressed video transmission process is denoted as R, the terminal memory duty ratio in the compressed video transmission process after adjustment is denoted as R ', R' =r×αi is set, wherein αi is the preset ith memory adjustment coefficient, and i=1, 2 is set.
According to the method, the video transmission efficiency of the cloud desktop is judged by setting the preset first delay time length condition, the preset second delay time length condition and the preset third delay time length condition, the video transmission efficiency of the cloud desktop depends on the network bandwidth of the virtual machine, the terminal memory occupation ratio in the compressed video transmission process is adjusted by the central control module by setting the preset first delay time length difference value condition, the preset second delay time length difference value condition, the preset first memory adjustment coefficient and the preset second memory adjustment coefficient under the preset second delay time length condition, the influence of the network bandwidth on video transmission is reduced by increasing the terminal memory occupation ratio, and the stability of video transmission is further improved.
With continued reference to fig. 3, the central control module determines whether the virtual machine load exceeds the allowable range according to the video demand evaluation parameter under the preset third delay time, wherein,
the first load judging method is that the central control module judges that the load of the virtual machine is in an allowable range under the condition of presetting a first evaluation parameter;
the second load judging method is that the central control module judges that the load of the virtual machine exceeds the allowable range under the condition of presetting a second evaluation parameter, and the network bandwidth of the virtual machine is adjusted to the corresponding bandwidth by calculating the difference value between the video demand evaluation parameter and the preset evaluation parameter;
the first preset evaluation parameter condition is that the video demand evaluation parameter is smaller than or equal to a preset evaluation parameter; the preset second evaluation parameter condition is that the video demand evaluation parameter is larger than the preset evaluation parameter.
With continued reference to fig. 3, the calculation formula of the video demand evaluation parameter is as follows:
wherein P is videoThe demand evaluation parameter, a is the total duration of the video,the method comprises the steps of taking a total video duration weight coefficient, taking B as a total video transmission frequency, taking B as a total video transmission frequency weight coefficient, taking C as a total video click frequency, taking C as a total video click frequency weight coefficient, wherein +_f >，/>，/>。
Specifically, the video demand evaluation parameter is denoted as P, the preset evaluation parameter is denoted as P0, the difference between the video demand evaluation parameter and the preset evaluation parameter is denoted as Δp, and Δp=p-P0 is set.
With continued reference to fig. 3, the central control module determines two adjustment modes for the network bandwidth of the virtual machine according to the difference between the video demand evaluation parameter and the preset evaluation parameter under the condition of the preset second evaluation parameter, wherein,
the first bandwidth adjusting mode is that the central control module adjusts the network bandwidth of the virtual machine to a first bandwidth by using a preset first bandwidth adjusting coefficient under the condition of presetting a first evaluation parameter difference value;
the second bandwidth adjusting mode is that the central control module adjusts the network bandwidth of the virtual machine to two bandwidths by using a preset second bandwidth adjusting coefficient under the condition of presetting a second evaluation parameter difference value;
the preset first evaluation parameter difference condition is that the difference value between the video demand evaluation parameter and the preset evaluation parameter is smaller than or equal to the preset evaluation parameter difference value; the preset second evaluation parameter difference condition is that the difference between the video demand evaluation parameter and the preset evaluation parameter is larger than the preset evaluation parameter difference; the preset first bandwidth adjustment coefficient is smaller than the preset second bandwidth adjustment coefficient.
Specifically, the difference of preset evaluation parameters is denoted as Δp, the preset first bandwidth adjustment coefficient is denoted as β1, the preset second bandwidth adjustment coefficient is denoted as β2, wherein 0 < β1 < β2 < 1, the network bandwidth of the virtual machine is denoted as W, the adjusted network bandwidth of the virtual machine is denoted as W ', W' =w× (1- βj) is set, wherein βj is the preset jth bandwidth adjustment coefficient, and j=1, 2 is set.
According to the method, whether the load of the virtual machine exceeds the allowable range is determined by setting the preset first evaluation parameter condition and the preset second evaluation parameter condition, and the central control module preferentially transmits the video with higher demand level in the process of transmitting the video by the cloud desktop, so that the video transmission is graded, and the stability of video transmission is further improved.
With continued reference to fig. 4, when the central control module completes the initial adjustment of the terminal memory ratio in the process of transmitting compressed video, three determination methods for determining whether the video transmission stability is within the allowable range according to the length of the video frame, wherein,
the first transmission stability judging method is that the central control module judges that the video transmission stability is within an allowable range under the condition of presetting a first time strip;
the second transmission stability judging method is that the central control module judges that the video transmission stability is lower than the allowable range under the condition of a preset second duration, and the terminal memory duty ratio in the process of transmitting the compressed video is secondarily adjusted to a second corresponding duty ratio by calculating the difference value between the blocking duration of the video picture and the preset first blocking duration;
the third transmission stability judging method is that the central control module judges that the video transmission stability is lower than the allowable range under the condition of presetting a third duration, primarily judges that the transmission safety is lower than the allowable range, and judges whether the transmission safety is in the allowable range for the second time according to the video jamming times;
the preset first time strip condition is that the blocking duration of the video picture is smaller than or equal to the preset first blocking duration; the preset second duration condition is that the length of the clamping time of the video picture is longer than the preset first clamping duration and is smaller than or equal to the preset second clamping duration; the preset third duration condition is that the clamping duration of the video picture is longer than the preset second clamping duration; the preset first clamping time length is smaller than the preset second clamping time length.
Specifically, the duration of the video picture is recorded as S, the preset first duration of the video picture is recorded as S1, the preset second duration of the video picture is recorded as S2, the difference between the duration of the video picture and the preset first duration of the video picture is recorded as Δs, and Δs=s-S1 is set.
With continued reference to fig. 4, the central control module determines two secondary adjustment modes for the memory ratio of the terminal in the compressed video transmission process according to the difference between the duration of the video frame and the preset first duration under the condition of the preset second duration, wherein,
the first secondary adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a third memory duty ratio by using a preset third memory adjustment coefficient under the condition of a preset first time length difference value;
the second secondary adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a fourth memory duty ratio by using a preset fourth memory adjustment coefficient under the condition of presetting a second duration difference value;
the preset first time length difference condition is that the difference between the clamping duration of the video picture and the preset first clamping duration is smaller than or equal to the preset clamping duration difference; the preset second duration difference value condition is that the difference value between the blocking duration of the video picture and the preset first blocking duration is larger than the preset blocking duration difference value; the preset third memory adjustment coefficient is smaller than the preset fourth memory adjustment coefficient.
Specifically, the difference value of the preset katon time length is denoted as Δs0, the preset third memory adjustment coefficient is denoted as α3, the preset fourth memory adjustment coefficient is denoted as α4, wherein 0 < α3 < α4 < 1, the terminal memory duty ratio in the transmission process of the compressed video after the secondary adjustment is denoted as R ", R" =r' ×αk is set, wherein αk is the preset kth memory adjustment coefficient, and k=3, 4 is set.
With continued reference to fig. 4, the central control module determines, according to the video clip times, whether the transmission security is within the allowable range or not under the condition of the preset third duration, two secondary determination methods, wherein,
the first transmission safety secondary judging method is that the central control module judges that the transmission safety is within an allowable range under the condition of a preset first time number;
the second transmission safety secondary judging method is that the central control module judges that the transmission safety is lower than the allowable range under the condition of the preset second times, and the number of video transmission channels is adjusted to the corresponding number by calculating the difference value between the video jamming times and the preset jamming times;
the preset first time number condition is that video clamping times are smaller than or equal to preset clamping times; the preset second time condition is that the video clamping times are larger than the preset clamping times.
Specifically, the number of video breakpoints is denoted as D, the number of preset breakpoints is denoted as D0, the difference between the number of video breakpoints and the number of preset breakpoints is denoted as Δd, and Δd=d-D0 is set.
With continued reference to fig. 4, the central control module determines two adjustment modes for the number of video transmission channels according to the difference between the video clip times and the preset clip times under the condition of the preset second times, wherein,
the first channel number adjusting mode is that the central control module adjusts the number of video transmission channels to a first number by using a preset first number adjusting coefficient under the condition of a preset first number difference value;
the second channel number adjusting mode is that the central control module adjusts the number of video transmission channels to a second number by using a preset second number adjusting coefficient under the condition of a preset second number difference value;
the preset first time difference value condition is that the difference value between the video jamming times and the preset jamming times is smaller than or equal to the preset jamming times difference value; the preset second time difference condition is that the difference between the video clamping times and the preset clamping times is larger than the preset clamping times difference; the preset first number adjustment factor is smaller than the preset second number adjustment factor.
Specifically, the preset breakpoint number difference is denoted as Δd0, the preset first number of adjustment coefficients is denoted as δ1, the preset second number of adjustment coefficients is denoted as δ2, where 1 < δ1 < δ2 < e, the number of video transmission channels is denoted as H, the number of video transmission channels after adjustment is denoted as H ', and H' =h× (1+δg) is set, where δg is the preset g-th number of adjustment coefficients, where g=1, 2.
Specifically, the method of the invention judges whether the transmission safety is within the allowable range according to the video blocking times by setting the preset first time difference condition and the preset second time difference condition, and the central control module adjusts the number of video transmission channels by setting the preset first time difference condition, the preset second time difference condition, the preset first quantity adjusting coefficient and the preset second quantity adjusting coefficient, and increases the video safety by increasing the video transmission channels, thereby further improving the video transmission stability.
Example 1
In embodiment 1, the delay time difference Δt0=5s is preset, the first memory adjustment coefficient α1=1.2 is preset, the second memory adjustment coefficient α2=1.4 is preset, the terminal memory ratio r=0.2 during the compressed video transmission process,
In this embodiment, Δt=3s is obtained, the central control module determines Δt is less than or equal to Δt0, and uses α1 to adjust R, where the terminal memory ratio in the compressed video transmission process after adjustment is recorded as R' =0.2×1.2=0.24.
In this embodiment 1, when the Δt is obtained, the central control module uses the corresponding adjustment coefficient to increase the terminal memory duty ratio in the transmission process of the compressed video, thereby reducing the delay time of the compressed video and improving the video transmission efficiency.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The video transmission method of the cloud desktop is characterized by comprising the following steps of:
step S1, a user terminal sends a video transmission request to a cloud server, and a virtual machine of the cloud server is used for compressing video to be transmitted and transmitting the compressed video to the user terminal;
step S2, counting the transmission time length of the compressed video and calculating the transmission delay time length of the compressed video, and judging whether the video transmission efficiency is within an allowable range or not by the central control module according to the transmission delay time length of the compressed video;
step S3, when the central control module judges that the video transmission efficiency is lower than the allowable range, the terminal memory duty ratio in the compressed video transmission process is adjusted for the first time, or the network bandwidth of the virtual machine is adjusted according to the video demand evaluation parameters;
step S4, when the initial adjustment of the memory ratio of the terminal in the transmission process of the compressed video is completed, decompressing the compressed video to play the video, and judging whether the video transmission stability is in an allowable range or not according to the length of the video picture in the pause period by the central control module;
and S5, when the video transmission stability is judged to be lower than the allowable range, the central control module secondarily adjusts the memory ratio of the terminal in the process of transmitting the compressed video, or adjusts the number of video transmission channels according to the video blocking times.
2. The video transmission method of a cloud desktop according to claim 1, wherein the central control module determines whether the video transmission efficiency is within an allowable range according to a delay time of the compressed video transmission, wherein,
the first judging method is that the central control module judges that the video transmission efficiency is within an allowable range under the condition of presetting a first delay time length;
the second judging method is that the central control module judges that the video transmission efficiency is lower than the allowable range under the condition of presetting a second delay time length, and adjusts the terminal memory duty ratio in the process of transmitting the compressed video to the corresponding duty ratio by calculating the difference value between the delay time length of the compressed video transmission and the preset first delay time length;
the third judging method is that the central control module judges that the video transmission efficiency is lower than the allowable range under the condition of presetting a third delay time length, preliminarily judges that the virtual machine load exceeds the allowable range, and judges whether the virtual machine load is in the allowable range for the second time according to the video demand evaluation parameters;
the preset first delay time length condition is that the delay time length of compressed video transmission is less than or equal to the preset first delay time length; the condition of the preset second delay time length is that the delay time length of the compressed video transmission is longer than the preset first delay time length and smaller than or equal to the preset second delay time length; the condition of the preset third delay time length is that the delay time length of compressed video transmission is longer than the preset second delay time length; the preset first delay time period is smaller than the preset second delay time period.
3. The video transmission method of the cloud desktop according to claim 2, wherein the central control module determines two adjustment modes for the terminal memory duty ratio in the compressed video transmission process according to the difference between the delay time length of the compressed video transmission and the preset first delay time length under the condition of the preset second delay time length, wherein,
the first adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a first memory duty ratio by using a preset first memory adjustment coefficient under the condition of a preset first delay duration difference value;
the second adjusting mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a second memory duty ratio by using a preset second memory adjusting coefficient under the condition of presetting a second delay time difference value;
the difference value condition of the preset first delay time length is that the difference value between the delay time length of compressed video transmission and the preset first delay time length is smaller than or equal to the difference value of the preset delay time length; the difference value condition of the preset second delay time length is that the difference value between the delay time length of the compressed video transmission and the preset first delay time length is larger than the difference value of the preset delay time length; the preset first memory adjustment coefficient is smaller than the preset second memory adjustment coefficient.
4. The video transmission method of a cloud desktop according to claim 3, wherein the central control module determines whether the virtual machine load exceeds the allowable range according to the video demand evaluation parameter under the preset third delay time, wherein,
the first load judging method is that the central control module judges that the load of the virtual machine is in an allowable range under the condition of presetting a first evaluation parameter;
the second load judging method is that the central control module judges that the load of the virtual machine exceeds the allowable range under the condition of presetting a second evaluation parameter, and the network bandwidth of the virtual machine is adjusted to the corresponding bandwidth by calculating the difference value between the video demand evaluation parameter and the preset evaluation parameter;
the first preset evaluation parameter condition is that the video demand evaluation parameter is smaller than or equal to a preset evaluation parameter; the preset second evaluation parameter condition is that the video demand evaluation parameter is larger than the preset evaluation parameter.
5. The video transmission method of a cloud desktop according to claim 4, wherein the calculation formula of the video demand evaluation parameter is:
wherein P is a video demand evaluation parameter, A is a video duration,the video duration weight coefficient, B is the video transmission times, B is the video transmission times weight coefficient, C is the video click times, C is the video click times weight coefficient, wherein, ，/>，/>。
6. The video transmission method of the cloud desktop according to claim 5, wherein the central control module determines two adjustment modes for the network bandwidth of the virtual machine according to a difference value between the video demand evaluation parameter and the preset evaluation parameter under the condition of the preset second evaluation parameter, wherein,
the first bandwidth adjusting mode is that the central control module adjusts the network bandwidth of the virtual machine to a first bandwidth by using a preset first bandwidth adjusting coefficient under the condition of presetting a first evaluation parameter difference value;
the second bandwidth adjusting mode is that the central control module adjusts the network bandwidth of the virtual machine to two bandwidths by using a preset second bandwidth adjusting coefficient under the condition of presetting a second evaluation parameter difference value;
the preset first evaluation parameter difference condition is that the difference value between the video demand evaluation parameter and the preset evaluation parameter is smaller than or equal to the preset evaluation parameter difference value; the preset second evaluation parameter difference condition is that the difference between the video demand evaluation parameter and the preset evaluation parameter is larger than the preset evaluation parameter difference; the preset first bandwidth adjustment coefficient is smaller than the preset second bandwidth adjustment coefficient.
7. The video transmission method of cloud desktop according to claim 6, wherein the central control module determines whether the video transmission stability is within an allowable range according to the length of the video frame when the initial adjustment of the terminal memory ratio in the process of transmitting the compressed video is completed, wherein,
The first transmission stability judging method is that the central control module judges that the video transmission stability is within an allowable range under the condition of presetting a first time strip;
the second transmission stability judging method is that the central control module judges that the video transmission stability is lower than the allowable range under the condition of a preset second duration, and the terminal memory duty ratio in the process of transmitting the compressed video is secondarily adjusted to a second corresponding duty ratio by calculating the difference value between the blocking duration of the video picture and the preset first blocking duration;
the third transmission stability judging method is that the central control module judges that the video transmission stability is lower than the allowable range under the condition of presetting a third duration, primarily judges that the transmission safety is lower than the allowable range, and judges whether the transmission safety is in the allowable range for the second time according to the video jamming times;
the preset first time strip condition is that the blocking duration of the video picture is smaller than or equal to the preset first blocking duration; the preset second duration condition is that the length of the clamping time of the video picture is longer than the preset first clamping duration and is smaller than or equal to the preset second clamping duration; the preset third duration condition is that the clamping duration of the video picture is longer than the preset second clamping duration; the preset first clamping time length is smaller than the preset second clamping time length.
8. The video transmission method of the cloud desktop according to claim 7, wherein the central control module determines two secondary adjustment modes for the memory occupancy rate of the terminal in the compressed video transmission process according to the difference between the duration of the video picture and the preset first duration under the condition of the preset second duration,
the first secondary adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a third memory duty ratio by using a preset third memory adjustment coefficient under the condition of a preset first time length difference value;
the second secondary adjustment mode is that the central control module adjusts the terminal memory duty ratio in the compressed video transmission process to a fourth memory duty ratio by using a preset fourth memory adjustment coefficient under the condition of presetting a second duration difference value;
the preset first time length difference condition is that the difference between the clamping duration of the video picture and the preset first clamping duration is smaller than or equal to the preset clamping duration difference; the preset second duration difference value condition is that the difference value between the blocking duration of the video picture and the preset first blocking duration is larger than the preset blocking duration difference value; the preset third memory adjustment coefficient is smaller than the preset fourth memory adjustment coefficient.
9. The video transmission method of the cloud desktop according to claim 8, wherein the central control module determines, according to the video clip times, whether the transmission security is within the allowable range or not under the condition of a preset third duration, two secondary determination methods, wherein,
the first transmission safety secondary judging method is that the central control module judges that the transmission safety is within an allowable range under the condition of a preset first time number;
the second transmission safety secondary judging method is that the central control module judges that the transmission safety is lower than the allowable range under the condition of the preset second times, and the number of video transmission channels is adjusted to the corresponding number by calculating the difference value between the video jamming times and the preset jamming times;
the preset first time number condition is that video clamping times are smaller than or equal to preset clamping times; the preset second time condition is that the video clamping times are larger than the preset clamping times.
10. The video transmission method of the cloud desktop according to claim 9, wherein the central control module determines two adjustment modes for the number of video transmission channels according to a difference between the video jamming times and the preset jamming times under the condition of the preset second times,
The first channel number adjusting mode is that the central control module adjusts the number of video transmission channels to a first number by using a preset first number adjusting coefficient under the condition of a preset first number difference value;
the second channel number adjusting mode is that the central control module adjusts the number of video transmission channels to a second number by using a preset second number adjusting coefficient under the condition of a preset second number difference value;
the preset first time difference value condition is that the difference value between the video jamming times and the preset jamming times is smaller than or equal to the preset jamming times difference value; the preset second time difference condition is that the difference between the video clamping times and the preset clamping times is larger than the preset clamping times difference; the preset first number adjustment factor is smaller than the preset second number adjustment factor.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140028779A1 (en) * 2012-07-30 2014-01-30 Kabushiki Kaisha Toshiba Video transmitting apparatus and video transmitting method
CN109600676A (en) * 2018-12-17 2019-04-09 北京金山云网络技术有限公司 A kind of data buffering method and device
CN112883095A (en) * 2021-03-02 2021-06-01 南京德奈特系统科技有限责任公司 Method, system, equipment and storage medium for multi-source heterogeneous data convergence
CN113037697A (en) * 2019-12-25 2021-06-25 深信服科技股份有限公司 Video frame processing method and device, electronic equipment and readable storage medium
CN115955579A (en) * 2022-12-22 2023-04-11 上海哔哩哔哩科技有限公司 Server parameter adjusting method and device
CN116112712A (en) * 2023-01-12 2023-05-12 联通沃音乐文化有限公司 Self-adaptive video-audio video transmission playing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140028779A1 (en) * 2012-07-30 2014-01-30 Kabushiki Kaisha Toshiba Video transmitting apparatus and video transmitting method
CN109600676A (en) * 2018-12-17 2019-04-09 北京金山云网络技术有限公司 A kind of data buffering method and device
CN113037697A (en) * 2019-12-25 2021-06-25 深信服科技股份有限公司 Video frame processing method and device, electronic equipment and readable storage medium
CN112883095A (en) * 2021-03-02 2021-06-01 南京德奈特系统科技有限责任公司 Method, system, equipment and storage medium for multi-source heterogeneous data convergence
CN115955579A (en) * 2022-12-22 2023-04-11 上海哔哩哔哩科技有限公司 Server parameter adjusting method and device
CN116112712A (en) * 2023-01-12 2023-05-12 联通沃音乐文化有限公司 Self-adaptive video-audio video transmission playing method

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