CN114640884B - Online video playing quality analysis method, system and computer storage medium - Google Patents
Online video playing quality analysis method, system and computer storage medium Download PDFInfo
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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Abstract
The invention discloses an online video playing quality analysis method, an online video playing quality analysis system and a computer storage medium. The online video playing quality analysis method comprises the following steps: positioning a video source corresponding to the video to be analyzed from the background of the target video website, and performing primary processing; acquiring a video playing mode selected by a target user, and acquiring video playing quality information according to the video playing mode selected by the target user; performing primary processing on the video playing quality information; analyzing the video playing quality information after the preliminary processing and the collected video playing quality information, and counting playing quality indexes corresponding to the videos to be analyzed; the method effectively solves the problem that the reference basis of the current online video playing quality analysis mode has limitation, breaks through the unicity and the generality existing in the current video playing quality analysis, and greatly improves the accuracy of the video playing quality analysis result.
Description
Technical Field
The invention belongs to the technical field of video playing quality analysis, and relates to an online video playing quality analysis method, an online video playing quality analysis system and a computer storage medium.
Background
With the rapid development of economy and the continuous improvement of internet technology, more and more people begin to use mobile devices to watch internet televisions, short videos and the like on line as main entertainment modes, the playing quality of online videos not only affects the experience of viewers, but also affects the viscosity of the viewers and a video playing platform, and therefore the playing quality of the online videos needs to be analyzed.
The current online video playing quality analysis mainly focuses on analyzing video quality parameters of video bases such as bit rate and frame rate, and belongs to a single and general analysis mode, the influence of objective factors such as network speed and the like on the video playing quality in a user watching device is not considered, and the playing condition of the video after different operation instructions of a user is not analyzed.
Disclosure of Invention
In view of the above, in order to solve the problems in the background art, a method, a system and a computer storage medium for analyzing online video playing quality of a video website are provided, so as to realize accurate analysis of online video playing quality;
the purpose of the invention can be realized by the following technical scheme:
the first aspect of the invention provides an online video playing quality analysis method, which comprises the following steps:
step S01, video source information acquisition and preliminary processing: acquiring a video to be played clicked by a target user at the current time of a target video website, recording the video as a video to be analyzed, positioning a video source corresponding to the video to be analyzed from a background of the target video website, further processing to obtain video picture information corresponding to each playing time point of the video to be analyzed, and recording the video picture information as standard video picture information;
s02, acquiring a video playing mode and acquiring video playing quality information: when a target user clicks a video to be analyzed, acquiring a video playing mode selected by the target user, and acquiring video playing quality information according to the video playing mode selected by the target user, if the video playing mode selected by the target user is a standard playing mode, executing the step S02-1, and if the video playing mode selected by the target user is a free playing mode, executing the step S02-2;
s02-1, acquiring video playing quality information in a standard playing mode: when the target user is in a standard playing mode, acquiring external playing quality information and internal playing quality information corresponding to the video to be analyzed;
s02-2, acquiring video playing quality information in a free playing mode: when a target user is in a free play mode, extracting operation instruction information sent by the target user and video play quality information corresponding to the operation instruction sent by the target user from a background of a target video website;
step S03, video playing quality information preliminary processing: performing primary processing on the video playing mode selected by the target user and the collected video playing quality information in the video playing mode selected by the target user;
step S04, video playing quality information analysis: analyzing the video playing quality information based on the preliminarily processed video playing quality information and the collected video playing quality information, counting playing quality indexes corresponding to the videos to be analyzed, and comparing the playing quality indexes corresponding to the videos to be analyzed with video playing quality indexes corresponding to preset video playing quality grades to obtain video playing quality grades corresponding to the videos to be analyzed;
step S05, video playing quality analysis result feedback: and acquiring the video playing quality grade corresponding to the video to be analyzed, and feeding back the video playing quality grade to the target video website background.
Further, the specific processing process of the video source corresponding to the video to be analyzed is as follows: according to a video source corresponding to a video to be analyzed, obtaining each video frame corresponding to the video to be analyzed, extracting a time point corresponding to each video frame, recording the time point corresponding to each video frame as a playing time point corresponding to each video frame, recording each video frame as each video picture, identifying each video picture through an image identification technology, obtaining subtitle content corresponding to each video picture, numbering the playing time points corresponding to each video picture according to the sequence of the playing time points, and sequentially marking the playing time points as 1,2,.
Further, the external playing quality information corresponding to the video to be analyzed is a model corresponding to a target user viewing device and a network speed corresponding to the target user viewing device, the internal playing quality information corresponding to the video to be analyzed is a first loading duration corresponding to the video to be analyzed, a curve corresponding to each video reference playing parameter in each playing time period of the video to be analyzed, and video picture information corresponding to each playing time period of the video to be analyzed, wherein each video reference playing parameter is a bit rate, a resolution, a frame rate, and noise, and the curve corresponding to each video reference playing parameter in each playing time period of the video to be analyzed is recorded as an actual curve corresponding to each video reference parameter.
Further, the video picture information corresponding to the playing of the video to be analyzed specifically includes a playing time point corresponding to each played video picture in each playing time period of the video to be analyzed and subtitle content corresponding to each played video picture, and each played video picture is numbered according to the playing sequence thereof, and is sequentially marked as 1,2,... I,. M.
Further, the operation instruction information sent by the target user is the number of times of operation instructions sent by the target user, the corresponding instruction type of the target user when sending the operation instruction, the corresponding initiation time point of the target user when sending the operation instruction and the corresponding termination time point of the target user when sending the operation instruction, the operation instructions sent by the target user are numbered according to the sending time, and are sequentially marked as 1,2,.. K,. H, wherein the instruction types include a playing progress type and a playing speed type.
Further, the specific extraction process of the corresponding video playing quality information when the target user sends the operation instruction from the background of the target video website comprises the following steps:
1) Acquiring an instruction type corresponding to each time when a target user sends an operation instruction, and if the instruction type corresponding to the time when the target user sends the operation instruction is a playing progress type, acquiring an ending time point corresponding to the time when the target user sends the operation instruction and extracting a display playing video picture corresponding to the time when the target user sends the operation instruction ending time point and a display response time corresponding to the display playing video picture;
2) If the corresponding instruction type is the playing speed type when the target user sends the operation instruction at a certain time, acquiring an initiating time point and an ending time point corresponding to the operation instruction sent by the target user at the time, further acquiring the duration corresponding to the operation instruction sent by the target user at the time, extracting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed in each time point in the duration of the operation instruction sent by the target user from the background of the target video website, and accordingly extracting the corresponding video playing quality information when the target user sends the operation instruction.
Further, the specific processing procedure for performing preliminary processing on the collected video playing quality information in the video mode selected by the target user includes the following steps:
s03-1, when the video mode selected by a target user is a standard playing mode, acquiring external playing quality information corresponding to the video to be analyzed, further extracting the model corresponding to the watching equipment of the target user, retrieving a standard curve corresponding to each video reference playing parameter on the model of the watching equipment of the target user from an equipment database based on the model corresponding to the watching equipment of the target user, simultaneously extracting the network speed corresponding to the watching equipment of the target user, comparing the network speed corresponding to the watching equipment of the target user with the network speed threshold corresponding to each preset video playing quality influence weight, screening out a video playing quality influence weight corresponding to the network speed of the watching equipment of the target user, and marking the video playing quality influence weight as beta;
and S03-2, when the video mode selected by the target user is a free play mode, obtaining operation instruction information sent by the target user, further extracting instruction types corresponding to the operation instructions sent by the target user at each time, respectively setting video play quality influence weight values corresponding to the operation instruction types according to the instruction types corresponding to the operation instructions sent by the target user at each time, recording video play quality influence weight values corresponding to the play progress types as alpha, and recording video play quality influence weight values corresponding to the play speed types as epsilon.
Further, the analysis of the video playing quality information includes a standard playing mode video playing quality analysis and a free playing mode video playing quality analysis, and the specific analysis process includes the following steps:
firstly, when a video mode selected by a target user is a standard playing mode, acquiring video playing quality influence weight corresponding to the network speed of a target user watching device, a standard curve corresponding to each video reference playing parameter on the model of the target user watching device and external playing quality information corresponding to a video to be analyzed, analyzing the video playing quality influence weight, the standard curve and the external playing quality information respectively, and then counting playing quality indexes corresponding to the video to be analyzed in the standard playing mode and recording the playing quality indexes as gamma;
and secondly, when the video mode selected by the target user is a free play mode, acquiring operation instruction information corresponding to the video to be analyzed, video play quality information corresponding to the operation instruction sent by the target user and video play quality influence weighted values corresponding to various operation instruction types, analyzing the operation instruction information, the video play quality information and the video play quality influence weighted values respectively, and then counting play quality indexes corresponding to the video to be analyzed in the free play mode and recording the play quality indexes as lambda.
The invention provides an online video playing quality analysis system, which comprises a video source information acquisition and preliminary processing module, a video playing mode acquisition module, a video playing quality information preliminary processing module, an equipment database, a cloud analysis platform and a data feedback terminal, wherein the video source information acquisition and preliminary processing module is used for acquiring video source information; wherein the content of the first and second substances,
the video source information acquisition and preliminary processing module is used for acquiring a video source corresponding to a video to be analyzed clicked by a target user and carrying out preliminary processing on the video source corresponding to the acquired video to be analyzed;
the video playing mode acquisition module is used for acquiring a video playing mode selected by a target user when the target user clicks a video to be analyzed;
the video playing quality information acquisition module is used for acquiring video playing quality information according to a video playing mode corresponding to a target user and comprises a standard playing mode video playing quality information acquisition unit and a free playing mode video playing quality information acquisition unit;
the video playing quality information primary processing module is used for carrying out primary processing on the video playing quality information acquired by the standard playing mode video playing quality information acquisition unit and the free playing mode video playing quality information acquisition unit;
the equipment database is used for storing standard curves corresponding to the video reference playing parameters on the equipment models;
the cloud analysis platform is used for analyzing the video playing quality information based on the preliminarily processed video playing quality information and the collected video playing quality information, counting playing quality indexes corresponding to the video to be analyzed and obtaining video playing quality grades corresponding to the video to be analyzed;
and the data feedback terminal is used for acquiring the video playing quality grade corresponding to the video to be analyzed and feeding the video playing quality grade back to the background of the target video website.
A third aspect of the present invention provides a computer storage medium, where a computer program is burned into the computer storage medium, and the computer program implements the method of the present invention when running in a memory of a server.
The invention has the beneficial effects that:
(1) The invention provides an online video playing quality analysis method, which comprises the steps of acquiring a playing mode selected by a target user, acquiring corresponding playing quality information according to the playing mode selected by the target user, and analyzing the acquired playing quality information under each playing mode, thereby effectively solving the problem that the current online video playing quality analysis reference basis has limitation, breaking the unicity and generality existing in the current video playing quality analysis mode, meanwhile, greatly improving the objectivity, reliability and accuracy of a video playing quality analysis result by performing a targeted and multi-dimensional analysis mode according to the playing mode selected by the target user, providing reasonable optimization basis and optimization direction for the subsequent video playing website or video playing platform, further effectively improving the stickiness of the video playing website or video playing platform and the user to a certain extent, and meeting the online playing video quality analysis requirement in the current video playing website or video playing platform;
(2) According to the method and the device, the video playing quality grade corresponding to the video to be analyzed is fed back to the target video website background, so that reliable data are provided for the analysis and statistics of the target video website background on the playing video quality, the online video playing quality condition in the target video website is effectively displayed, and the optimization process of the online video playing quality of the target video website is promoted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the steps of the method of the present invention;
FIG. 2 is a schematic diagram showing the connection of the modules of the system of the present invention;
fig. 3 is a schematic structural diagram of a video playing quality information acquisition module according to the present invention.
Detailed Description
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Referring to fig. 1, an online video playing quality analysis method includes the following steps:
step S01, video source information acquisition and preliminary processing: acquiring a video to be played clicked by a target user at a target video website at present, recording the video as a video to be analyzed, positioning a video source corresponding to the video to be analyzed from a background of the target video website, further processing to obtain video picture information corresponding to each playing time point of the video to be analyzed, and recording the video picture information as standard video picture information;
specifically, the specific processing procedure for the video source corresponding to the video to be analyzed is as follows: the method comprises the steps of obtaining video frames corresponding to a video to be analyzed according to a video source corresponding to the video to be analyzed, extracting time points corresponding to the video frames, recording the time points corresponding to the video frames as playing time points corresponding to the video frames, recording the video frames as video pictures, identifying the video pictures through an image identification technology, obtaining subtitle content corresponding to the video pictures, numbering the playing time points corresponding to the video pictures according to the sequence, sequentially marking the playing time points as 1,2, the.
S02, acquiring a video playing mode and acquiring video playing quality information: when a target user clicks a video to be analyzed, acquiring a video playing mode selected by the target user, acquiring video playing quality information according to the video playing mode selected by the target user, if the video playing mode selected by the target user is a standard playing mode, executing a step S02-1, and if the video playing mode selected by the target user is a free playing mode, executing a step S02-2;
s02-1, acquiring video playing quality information in a standard playing mode: when the target user is in a standard playing mode, acquiring external playing quality information and internal playing quality information corresponding to the video to be analyzed;
it should be noted that the external playing quality information corresponding to the video to be analyzed is a model corresponding to the target user viewing device and a network speed corresponding to the target user viewing device, the internal playing quality information corresponding to the video to be analyzed is a first loading duration corresponding to the video to be analyzed, a curve corresponding to each video reference playing parameter in each playing time period of the video to be analyzed, and video picture information corresponding to each playing time period of the video to be analyzed, where each video reference playing parameter is a bit rate, a resolution, a frame rate, and noise, and a curve corresponding to each video reference playing parameter in each playing time period of the video to be analyzed is recorded as an actual curve corresponding to each video reference parameter.
Illustratively, the external playing quality information and the internal playing quality information corresponding to the video to be analyzed are extracted through a background of the target analysis website, wherein when extracting the reference playing parameters and the video picture information of each video, the reference playing parameters and the video picture information are extracted according to an extraction mode of a preset extraction time period, and each preset extraction time period is recorded as each playing time period.
Further, the video picture information corresponding to the playing of the video to be analyzed specifically includes a playing time point corresponding to each played video picture in each playing time period of the video to be analyzed and subtitle content corresponding to each played video picture, and each played video picture is numbered according to the playing sequence thereof, and is sequentially marked as 1,2,... I,. M.
S02-2, acquiring video playing quality information in a free playing mode: when a target user is in a free play mode, extracting operation instruction information sent by the target user and video play quality information corresponding to the operation instruction sent by the target user from a background of a target video website;
it should be noted that the operation instruction information sent by the target user is the number of operation instructions sent by the target user, the instruction type corresponding to the operation instruction sent by the target user each time, the initiation time point corresponding to the operation instruction sent by the target user each time, and the termination time point corresponding to the operation instruction sent by the target user each time, and each operation instruction sent by the target user is numbered sequentially according to the sending time, and sequentially marked as 1,2,.
Illustratively, the specific extraction process for extracting the corresponding video playing quality information when the target user sends the operation instruction from the background of the target video website includes the following steps:
1) Acquiring an instruction type corresponding to each time when a target user sends an operation instruction, and if the instruction type corresponding to the time when the target user sends the operation instruction is a playing progress type, acquiring an ending time point corresponding to the time when the target user sends the operation instruction and extracting a display playing video picture corresponding to the time when the target user sends the operation instruction ending time point and a display response time corresponding to the display playing video picture;
2) If the corresponding instruction type is the playing speed type when the target user sends the operation instruction at a certain time, acquiring an initiating time point and an ending time point corresponding to the operation instruction sent by the target user at the time, further acquiring the duration corresponding to the operation instruction sent by the target user at the time, extracting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed in each time point in the duration of the operation instruction sent by the target user from the background of the target video website, and accordingly extracting the corresponding video playing quality information when the target user sends the operation instruction.
The duration corresponding to the operation instruction sent by the user refers to the interval duration between the starting time point and the ending time point of the operation instruction sent by the user.
Step S03, video playing quality information preliminary processing: performing preliminary processing on the video playing mode selected by the target user and the collected video playing quality information in the video playing mode selected by the target user;
specifically, the specific processing procedure for performing preliminary processing on the collected video playing quality information in the video mode selected by the target user includes the following steps:
s03-1, when the video mode selected by a target user is a standard playing mode, acquiring external playing quality information corresponding to the video to be analyzed, further extracting the model corresponding to the watching equipment of the target user, retrieving a standard curve corresponding to each video reference playing parameter on the model of the watching equipment of the target user from an equipment database based on the model corresponding to the watching equipment of the target user, simultaneously extracting the network speed corresponding to the watching equipment of the target user, comparing the network speed corresponding to the watching equipment of the target user with the network speed threshold corresponding to each preset video playing quality influence weight, screening out a video playing quality influence weight corresponding to the network speed of the watching equipment of the target user, and marking the video playing quality influence weight as beta;
it should be noted that the faster the device network speed, the smaller β, the slower the device network speed, and the larger β.
S03-2, when the video mode selected by the target user is a free play mode, obtaining operation instruction information sent by the target user, further extracting instruction types corresponding to the operation instructions sent by the target user at each time, respectively setting video play quality influence weights corresponding to the operation instruction types according to the instruction types corresponding to the operation instructions sent by the target user at each time, recording video play quality influence weight values corresponding to the play progress types as alpha, and recording video play quality influence weight values corresponding to the play speed types as epsilon.
Step S04, video playing quality information analysis: analyzing the video playing quality information after the preliminary processing and the collected video playing quality information, counting the playing quality index corresponding to the video to be analyzed, and comparing the playing quality index corresponding to the video to be analyzed with the video playing quality parameters corresponding to the preset video playing quality grades to obtain the video playing quality grade corresponding to the video to be analyzed;
in a specific embodiment, the video playing quality information analysis includes a standard playing mode video playing quality analysis and a free playing mode video playing quality analysis, and the specific analysis process includes the following steps:
firstly, when a video mode selected by a target user is a standard playing mode, acquiring video playing quality influence weight corresponding to the network speed of a target user watching device, a standard curve corresponding to each video reference playing parameter on the model of the target user watching device and external playing quality information corresponding to a video to be analyzed, analyzing the video playing quality influence weight, the standard curve and the external playing quality information respectively, and then counting playing quality indexes corresponding to the video to be analyzed in the standard playing mode and recording the playing quality indexes as gamma;
illustratively, the specific analysis process for analyzing the internal playing quality information corresponding to the video to be analyzed and the external playing quality information corresponding to the video to be analyzed includes the following steps:
f1, acquiring a standard curve corresponding to each video reference playing parameter on the model of the target user watching equipment and an actual curve corresponding to each video reference parameter in each playing time period corresponding to the video to be analyzed, performing superposition comparison on the actual curve corresponding to each video reference parameter in each playing time period and the standard curve thereof, acquiring the number of superposition areas corresponding to each video reference parameter actual curve and each standard curve in each playing time period and the superposition length corresponding to each superposition area, extracting the length of the standard curve corresponding to each video reference parameter in each playing time period, and calculating the comprehensive matching degree PD of the video reference parameters by using a calculation formula.
The calculation process for calculating the comprehensive matching degree of the video reference parameters comprises the following steps: substituting the number of overlapping areas corresponding to the actual video reference parameter curve and the standard curve of each playing time period and the overlapping length corresponding to each overlapping area into a calculation formula
Obtaining the matching degree of each video reference parameter actual curve and its standard curve, and recording as the matching degree of each video reference parameter, where w represents a video reference parameter, w = a1 or a2 or a3 or a4, a1, a2, a3, and a4 sequentially represent bit rate, resolution, frame rate, and noise, σ 1 and σ 2 are preset correction factors, q is a preset correction factor, and q is a preset correction factor d w Representing the number of overlapping areas, q ', corresponding to the actual curve of the video reference parameter and the standard curve of the actual curve of the video reference parameter in the d-th playing time period' w The number of standard overlapping areas preset for the video reference parameters, d represents the number of each playing time period, and d =1,2 p wd Representing the coincidence length of the actual curve of the video reference parameter in the d playing time period and the standard curve thereof corresponding to the p-th coincidence area, p representing the number corresponding to each coincidence area, p =1,2, ·.
The standard curve length corresponding to the reference video parameter of the d playing time period is represented, and the comprehensive matching degree PD of the reference video parameter is counted according to the matching degree corresponding to each reference video parameter, wherein,
indicating the corresponding correction factor of the video reference parameter.
F2, extracting the first loading time length corresponding to the video to be analyzed, recording the first loading time length as T, and utilizing the meterFormula of calculation
Obtaining a playing quality factor corresponding to the first loading time length of the video to be analyzed, wherein T' is the standard first loading time length corresponding to the preset video;
f3, obtaining playing time points corresponding to the accumulative playing video pictures and subtitle contents corresponding to the accumulative playing video pictures in each playing time period of the video to be analyzed according to the corresponding video picture information in each playing time period of the video to be analyzed, locating standard video picture information corresponding to each playing time point according to the playing time points corresponding to the accumulative playing video pictures in each playing time period of the video to be analyzed, comparing the subtitle contents corresponding to the accumulative playing video pictures in each playing time period of the video to be analyzed with the standard subtitle contents corresponding to the playing time points, recording the picture matching degree corresponding to the video to be analyzed as x if the subtitle contents are consistent with the standard subtitle contents, counting the number of inconsistent playing video pictures if the subtitle contents are inconsistent with the standard subtitle contents corresponding to the playing time points, and recording the picture matching degree corresponding to the video to be analyzed as x ', wherein x' = c psi, c represents the inconsistent number of playing video pictures, psi represents the picture matching degree corresponding to a single inconsistent picture, so as to obtain the picture matching degree corresponding to the video to be analyzed, and recording the picture matching degree as x 'or HD' and taking the value of x or HD 'and >'.
F4, substituting the video playing quality influence weight corresponding to the network speed of the target user watching equipment, the video reference parameter comprehensive matching degree, the playing quality factor corresponding to the first loading time length of the video to be analyzed and the picture matching degree corresponding to the video to be analyzed into a calculation formula
And obtaining a playing quality index corresponding to the video to be analyzed in the standard playing mode, wherein epsilon 1 and epsilon 2 are preset coefficients.
In a specific embodiment, the corresponding relationship in the video playing quality index calculation formula to be analyzed in the standard playing mode is specifically: the larger the PD, HD and mu are, the larger the playing quality index of the video to be analyzed is, the larger the beta is, and the smaller the playing quality index of the video to be analyzed is.
And secondly, when the video mode selected by the target user is a free play mode, acquiring operation instruction information corresponding to the video to be analyzed, video play quality information corresponding to the operation instruction sent by the target user and video play quality influence weighted values corresponding to various operation instruction types, analyzing the operation instruction information, the video play quality information and the video play quality influence weighted values respectively, and then counting play quality indexes corresponding to the video to be analyzed in the free play mode and recording the play quality indexes as lambda.
Illustratively, the specific calculation process of the play quality index of the video to be analyzed in the free play mode includes the following steps;
y1, obtaining the times of operation instructions sent by a target user and the corresponding instruction types of the target user when the target user sends the operation instructions each time, comparing the corresponding instruction types of the target user when the target user sends the operation instructions each time, and counting the comprehensive sending times of the target user for sending the operation instructions of the playing progress type and the comprehensive sending times corresponding to the operation instructions of the playing speed type;
y2, extracting corresponding ending time points of the target user when each time of playing progress type operation instructions is sent, corresponding display playing video pictures and corresponding display response durations of the display playing video pictures when each time of playing progress type operation instructions is sent, positioning standard video picture information corresponding to the ending time points of the playing progress type operation instructions sent each time according to the ending time points of the playing progress type operation instructions sent each time, comparing the standard video picture information with the corresponding display playing video pictures when each time of playing progress type operation instructions is sent ending time points, recording the video playing quality coefficient corresponding to the playing progress type operation instructions sent each time as phi if the standard video picture information is consistent with the corresponding display playing video picture when each time of playing progress type operation instructions is sent, and recording the video playing quality coefficient corresponding to the playing progress type operation instructions sent each time as phi if the standard video picture information is consistent with the corresponding display playing progress type operation instruction sent each time, otherwise, and recording the video playing quality coefficient corresponding to the playing progress type operation instructions sent each time as JZ, so as to obtain the video playing quality coefficient corresponding to each playing progress type operation instructions JZ x X represents a number corresponding to each operation instruction for issuing the play progress type, and x =1,2 x Taking the value of phi or phi ', phi > phi', and determining the video playing quality coefficient corresponding to each playing progress type operation instruction and the playing progress type sent each timeSubstituting the display response time length for displaying the playing video picture in the operation instruction into the calculation formula
Obtaining a video playing quality index corresponding to a video to be analyzed when a playing progress type operation instruction is sent, wherein omega 1 and omega 2 are preset coefficients, XT' is a preset threshold value for allowing display response time length to be displayed, and XT x The display response time corresponding to the video picture to be played is displayed when the end time point of the playing progress type operation instruction is sent for the x time.
Y3, extracting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed at each time point in the duration corresponding to each time when the target user sends the playing speed type operation instruction, and substituting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed at each time point in the duration corresponding to each time when the target user sends the playing speed type operation instruction into a calculation formula
Obtaining the video playing quality index corresponding to the video to be analyzed when the playing speed type operation instruction is sent, wherein tau 1 and tau 2 are compensation factors, DB s z ,BH s z Respectively representing the picture contrast and the picture saturation corresponding to the z-th time point to-be-analyzed video playing picture in the corresponding duration when the target user sends the playing speed type operation instruction for the s-th time, and DB 'and BH' are respectively the standard picture contrast and the standard picture saturation corresponding to the preset video playing picture.
Y4, substituting the video playing quality index corresponding to the video to be analyzed when the playing progress type operation instruction is sent, the video playing quality index corresponding to the video to be analyzed when the playing speed type operation instruction is sent, the video playing quality influence weighted value alpha corresponding to the playing progress type and the video playing quality influence weighted value epsilon corresponding to the playing speed type into a formula
In the method, a free play mode is obtainedAnd the playing quality index corresponding to the video to be analyzed.
According to the embodiment of the invention, the playing mode selected by the target user is obtained, the corresponding playing quality information is acquired according to the playing mode selected by the target user, and the playing quality information acquired in each playing mode is analyzed, so that the problem that the reference basis of the current online video playing quality analysis has limitation is effectively solved, the singleness and the generality existing in the current video playing quality analysis mode are broken, meanwhile, the objectivity, the reliability and the accuracy of the video playing quality analysis result are greatly improved by the targeted and multi-dimensional analysis mode according to the playing mode selected by the target user, reasonable optimization basis and optimization direction are provided for the subsequent video playing website or video playing platform, the stickiness of the video playing website or video playing platform and the user is effectively improved to a certain extent, and the requirement of online playing video quality analysis in the current video playing website or video playing platform is met.
Step S05, video playing quality analysis result feedback: and acquiring the video playing quality grade corresponding to the video to be analyzed, and feeding the video playing quality grade back to the target video website background.
According to the embodiment of the invention, the video playing quality grade corresponding to the video to be analyzed is fed back to the background of the target video website, so that reliable data are provided for the analysis and statistics of the target video website background on the playing video quality, the online video playing quality condition in the target video website is effectively displayed, and the online video playing quality optimization process of the target video website is promoted.
Referring to fig. 2, the present invention provides an online video playing quality analysis system, which includes a video source information acquisition and preliminary processing module, a video playing mode acquisition module, a video playing quality information preliminary processing module, an equipment database, a cloud analysis platform, and a data feedback terminal;
the cloud analysis platform is respectively connected with a video source information acquisition and preliminary processing module, a video playing quality information acquisition module, a video playing quality information preliminary processing module and a data feedback terminal, the video playing quality information acquisition module is connected with a video playing mode acquisition module, and an equipment database is connected with the video playing quality information preliminary processing module;
the video source information acquisition and preliminary processing module is used for acquiring a video source corresponding to a video to be analyzed clicked by a target user and carrying out preliminary processing on the video source corresponding to the acquired video to be analyzed;
the video playing mode acquisition module is used for acquiring a video playing mode selected by a target user when the target user clicks a video to be analyzed;
referring to fig. 3, the video playing quality information collecting module is configured to collect video playing quality information according to a video playing mode corresponding to a target user, and includes a standard playing mode video playing quality information collecting unit and a free playing mode video playing quality information collecting unit;
the video playing quality information primary processing module is used for carrying out primary processing on the video playing quality information acquired by the standard playing mode video playing quality information acquisition unit and the free playing mode video playing quality information acquisition unit;
the equipment database is used for storing standard curves corresponding to the video reference playing parameters on the equipment models;
the cloud analysis platform is used for analyzing the video playing quality information based on the preliminarily processed video playing quality information and the collected video playing quality information, counting playing quality indexes corresponding to the video to be analyzed and obtaining video playing quality grades corresponding to the video to be analyzed;
and the data feedback terminal is used for acquiring the video playing quality grade corresponding to the video to be analyzed and feeding the video playing quality grade back to the background of the target video website.
The invention provides a computer storage medium, wherein a computer program is burned in the computer storage medium, and the method is realized when the computer program runs in a memory of a server.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (6)
1. An online video playing quality analysis method is characterized by comprising the following steps:
step S01, video source information acquisition and preliminary processing: acquiring a video to be played clicked by a target user at the current time of a target video website, recording the video as a video to be analyzed, positioning a video source corresponding to the video to be analyzed from a background of the target video website, further processing to obtain video picture information corresponding to each playing time point of the video to be analyzed, and recording the video picture information as standard video picture information;
s02, acquiring a video playing mode and acquiring video playing quality information: when a target user clicks a video to be analyzed, acquiring a video playing mode selected by the target user, and acquiring video playing quality information according to the video playing mode selected by the target user, if the video playing mode selected by the target user is a standard playing mode, executing the step S02-1, and if the video playing mode selected by the target user is a free playing mode, executing the step S02-2;
s02-1, acquiring video playing quality information in a standard playing mode: when the target user is in a standard playing mode, acquiring external playing quality information and internal playing quality information corresponding to the video to be analyzed;
s02-2, acquiring video playing quality information in a free playing mode: when a target user is in a free play mode, extracting operation instruction information sent by the target user and video play quality information corresponding to the operation instruction sent by the target user from a background of a target video website;
step S03, video playing quality information preliminary processing: performing primary processing on the video playing mode selected by the target user and the collected video playing quality information in the video playing mode selected by the target user;
step S04, video playing quality information analysis: analyzing the video playing quality information based on the preliminarily processed video playing quality information and the collected video playing quality information, counting the playing quality index corresponding to the video to be analyzed, and comparing the playing quality index corresponding to the video to be analyzed with the video playing quality indexes corresponding to the preset video playing quality grades to obtain the video playing quality grade corresponding to the video to be analyzed;
step S05, video playing quality analysis result feedback: acquiring a video playing quality grade corresponding to the video to be analyzed, and feeding back the video playing quality grade to the target video website background;
the external playing quality information corresponding to the video to be analyzed is the model corresponding to the target user watching equipment and the network speed corresponding to the target user watching equipment, the internal playing quality information corresponding to the video to be analyzed is the first loading time length corresponding to the video to be analyzed, a curve corresponding to each video reference playing parameter in each playing time period of the video to be analyzed and video picture information corresponding to each playing time period of the video to be analyzed, wherein each video reference playing parameter is bit rate, resolution, frame rate and noise, and the curve corresponding to each video reference playing parameter in each playing time period of the video to be analyzed is recorded as an actual curve corresponding to each video reference parameter;
the specific extraction process for extracting the corresponding video playing quality information when the target user sends the operation instruction from the background of the target video website comprises the following steps:
1) Acquiring an instruction type corresponding to each time when a target user sends an operation instruction, and if the instruction type corresponding to the time when the target user sends the operation instruction is a playing progress type, acquiring an ending time point corresponding to the time when the target user sends the operation instruction and extracting a display playing video picture corresponding to the time when the target user sends the operation instruction ending time point and a display response time corresponding to the display playing video picture;
2) If the corresponding instruction type is the playing speed type when the target user sends the operation instruction at a certain time, acquiring an initiating time point and an ending time point corresponding to the operation instruction sent by the target user at the time, further acquiring the duration corresponding to the operation instruction sent by the target user at the time, extracting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed in each time point in the duration of the operation instruction sent by the target user from the background of the target video website, and thus respectively extracting the corresponding video playing quality information when the target user sends the operation instruction;
the specific processing process for performing preliminary processing on the video playing quality information in the video mode selected by the acquired target user comprises the following steps:
s03-1, when the video mode selected by a target user is a standard playing mode, acquiring external playing quality information corresponding to the video to be analyzed, further extracting the model corresponding to the watching equipment of the target user, retrieving a standard curve corresponding to each video reference playing parameter on the model of the watching equipment of the target user from an equipment database based on the model corresponding to the watching equipment of the target user, simultaneously extracting the network speed corresponding to the watching equipment of the target user, comparing the network speed corresponding to the watching equipment of the target user with the network speed threshold corresponding to each preset video playing quality influence weight, screening out a video playing quality influence weight corresponding to the network speed of the watching equipment of the target user, and marking the video playing quality influence weight as beta;
s03-2, when the video mode selected by the target user is a free play mode, acquiring operation instruction information sent by the target user, further extracting instruction types corresponding to the operation instructions sent by the target user at each time, respectively setting video play quality influence weights corresponding to the operation instruction types according to the instruction types corresponding to the operation instructions sent by the target user at each time, recording the video play quality influence weight value corresponding to the play progress type as alpha, and recording the video play quality influence weight value corresponding to the play speed type as epsilon;
the video playing quality information analysis comprises standard playing mode video playing quality analysis and free playing mode video playing quality analysis, and the specific analysis process comprises the following steps:
firstly, when a video mode selected by a target user is a standard playing mode, acquiring video playing quality influence weight corresponding to the network speed of a target user watching device, a standard curve corresponding to each video reference playing parameter on the model of the target user watching device and external playing quality information corresponding to a video to be analyzed, analyzing the video playing quality influence weight, the standard curve and the external playing quality information respectively, and then counting playing quality indexes corresponding to the video to be analyzed in the standard playing mode and recording the playing quality indexes as gamma;
f1, acquiring a standard curve corresponding to each video reference playing parameter on the watching equipment model of a target user and an actual curve corresponding to each video reference parameter in each playing time period corresponding to a video to be analyzed, performing superposition comparison on the actual curve corresponding to each video reference parameter in each playing time period and the standard curve thereof, acquiring the number of superposition areas corresponding to each video reference parameter actual curve and the standard curve thereof in each playing time period and the superposition length corresponding to each superposition area, extracting the standard curve length corresponding to each video reference parameter in each playing time period, and calculating the comprehensive matching degree PD of the video reference parameters by using a calculation formula;
the calculation process for calculating the comprehensive matching degree of the video reference parameters comprises the following steps: substituting the number of overlapping areas corresponding to the actual video reference parameter curve and the standard curve of each playing time period and the overlapping length corresponding to each overlapping area into a calculation formula
Obtaining the matching degree of each video reference parameter actual curve and its standard curve, and recording as the matching degree of each video reference parameter, wherein w represents a video reference parameter, w = a1 or a2 or a3 or a4, a1, a2, a3 and a4 are sequentially represented as bit rate, resolution, frame rate and noise, σ 1 and σ 2 are preset correction factors, q is a preset correction factor, and q is a preset correction factor d w Representing the number of overlapping areas, q ', corresponding to the actual curve of the video reference parameter and the standard curve of the actual curve of the video reference parameter in the d-th playing time period' w The number of standard overlapping areas is preset for the video reference parameters, d represents the number of each playing time period, d =1,2 p wd Actual curve representing video reference parameter in d playing time period and itsThe overlapping length of the standard curve corresponding to the p-th overlapping area, p represents the number corresponding to each overlapping area, p =1,2, ·.
The standard curve length corresponding to the reference video parameter of the d playing time period is represented, and the comprehensive matching degree PD of the reference video parameter is counted according to the matching degree corresponding to each reference video parameter, wherein,
representing a correction factor corresponding to the video reference parameter;
f2, extracting the first loading duration corresponding to the video to be analyzed, recording the first loading duration as T, and utilizing a calculation formula
Obtaining a playing quality factor corresponding to the first loading time length of the video to be analyzed, wherein T' is the standard first loading time length corresponding to the preset video;
f3, obtaining playing time points corresponding to all accumulatively played video pictures and subtitle contents corresponding to all accumulatively played video pictures in all playing time periods of the video to be analyzed according to corresponding video picture information in all playing time periods of the video to be analyzed, locating standard video picture information corresponding to all playing time points according to corresponding playing time points of all accumulatively played video pictures in all playing time periods of the video to be analyzed, comparing the subtitle contents corresponding to all accumulatively played video pictures in all playing time periods of the video to be analyzed with the standard subtitle contents corresponding to the playing time points, recording the picture matching degree corresponding to the video to be analyzed as chi if the subtitle contents correspond to all the playing time points are consistent, counting the inconsistent playing video picture number if the subtitle contents correspond to all the playing time periods of the video to be analyzed, and recording the picture matching degree corresponding to the video to be analyzed as chi ', wherein chi ' = c psi, c represents the inconsistent playing video picture number, psi represents the picture matching degree corresponding to a single inconsistent picture, and accordingly obtaining the picture matching degree corresponding to the video to be analyzed, and recording the picture matching degree as chi ' or HD ' and taking values and > chi ';
f4, substituting the video playing quality influence weight corresponding to the network speed of the target user watching equipment, the video reference parameter comprehensive matching degree, the playing quality factor corresponding to the first loading time length of the video to be analyzed and the picture matching degree corresponding to the video to be analyzed into a calculation formula
Obtaining a playing quality index corresponding to a video to be analyzed in a standard playing mode, wherein epsilon 1 and epsilon 2 are preset coefficients;
secondly, when the video mode selected by the target user is a free play mode, acquiring operation instruction information corresponding to the video to be analyzed, video play quality information corresponding to the operation instruction sent by the target user and video play quality influence weighted values corresponding to the types of the operation instructions, analyzing the operation instruction information, the video play quality information and the video play quality influence weighted values respectively, and then counting play quality indexes corresponding to the video to be analyzed in the free play mode and marking the play quality indexes as lambda;
y1, obtaining the times of operation instructions sent by a target user and the corresponding instruction types of the target user when the target user sends the operation instructions each time, comparing the corresponding instruction types of the target user when the target user sends the operation instructions each time, and counting the comprehensive sending times of the target user for sending the operation instructions of the playing progress type and the comprehensive sending times corresponding to the operation instructions of the playing speed type;
y2, extracting corresponding ending time points of the target user when the playing progress type operation instruction is sent each time, corresponding display playing video pictures when the playing progress type operation instruction is sent each time and corresponding display response duration of the display playing video pictures, positioning standard video picture information corresponding to the ending time points of the playing progress type operation instruction sent each time according to the ending time points of the playing progress type operation instruction sent each time, comparing the standard video picture information with the corresponding display playing video pictures when the playing progress type operation instruction ending time points are sent each time, and if the standard video picture information is consistent, comparing the standard video picture information with the corresponding display playing video pictures when the playing progress type operation instruction ending time points are sent each timeThe video playing quality coefficient corresponding to the playing progress type operation instruction sent this time is recorded as phi, otherwise, recorded as phi', so as to respectively obtain the video playing quality coefficient JZ corresponding to each playing progress type operation instruction x X represents a number corresponding to each operation instruction for issuing the play progress type, and x =1,2 x The value is phi or phi 'and phi is larger than phi', the video playing quality coefficient corresponding to each playing progress type operation instruction and the display response time length of the display playing video picture when each playing progress type operation instruction is sent are substituted into a calculation formula
Obtaining a video playing quality index corresponding to a video to be analyzed when a playing progress type operation instruction is sent, wherein omega 1 and omega 2 are preset coefficients, XT' is a preset threshold value allowing display of response time length, and XT x Showing that the display response time corresponding to the video picture is displayed when the xth operation instruction is sent out to finish the time point;
y3, extracting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed at each time point in the duration corresponding to each time when the target user sends the playing speed type operation instruction, and substituting the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed at each time point in the duration corresponding to each time when the target user sends the playing speed type operation instruction into a calculation formula
Obtaining the video playing quality index corresponding to the video to be analyzed when the playing speed type operation instruction is sent, wherein tau 1 and tau 2 are compensation factors, DB s z ,BH s z Respectively representing the picture contrast and the picture saturation corresponding to the video playing picture to be analyzed at the z-th time point in the corresponding duration when the target user sends the playing speed type operation instruction for the s time, wherein DB 'and BH' are respectively the standard picture contrast and the standard picture saturation corresponding to the preset video playing picture;
y4, will send out broadcastSubstituting the video playing quality index corresponding to the video to be analyzed when the playing rate type operation instruction is given, the video playing quality index corresponding to the video to be analyzed when the playing speed type operation instruction is given, the video playing quality influence weighted value alpha corresponding to the playing rate type and the video playing quality influence weighted value epsilon corresponding to the playing speed type into a formula
And obtaining the playing quality index corresponding to the video to be analyzed in the free playing mode.
2. The method for analyzing the playing quality of the online video according to claim 1, wherein: the specific processing process of the video source corresponding to the video to be analyzed is as follows: according to a video source corresponding to a video to be analyzed, obtaining each video frame corresponding to the video to be analyzed, extracting a time point corresponding to each video frame, recording the time point corresponding to each video frame as a playing time point corresponding to each video frame, recording each video frame as each video picture, identifying each video picture through an image identification technology, obtaining subtitle content corresponding to each video picture, numbering the playing time points corresponding to each video picture according to the sequence of the playing time points, and sequentially marking the playing time points as 1,2,.
3. The method for analyzing the playing quality of the online video according to claim 1, wherein: the video picture information corresponding to the playing of the video to be analyzed specifically comprises playing time points corresponding to the played video pictures in each playing time period of the video to be analyzed and subtitle content corresponding to the played video pictures, and the played video pictures are numbered according to the playing sequence of the played video pictures and are sequentially marked as 1,2,... I,. M.
4. The method for analyzing the playing quality of the online video according to claim 1, wherein: the operation instruction information sent by the target user is the operation instruction frequency sent by the target user, the instruction type corresponding to the target user when the target user sends the operation instruction, the corresponding initiation time point when the target user sends the operation instruction each time and the corresponding ending time point when the target user sends the operation instruction each time, the operation instructions sent by the target user are numbered according to the sending time of the operation instructions, and the operation instructions are marked as 1,2, a.
5. An online video playback quality analysis system for performing an online video playback quality analysis method according to claim 1, characterized in that: the system comprises a video source information acquisition and preliminary processing module, a video playing mode acquisition module, a video playing quality information preliminary processing module, an equipment database, a cloud analysis platform and a data feedback terminal; wherein the content of the first and second substances,
the video source information acquisition and preliminary processing module is used for acquiring a video source corresponding to a video to be analyzed clicked by a target user and carrying out preliminary processing on the video source corresponding to the acquired video to be analyzed;
the video playing mode acquisition module is used for acquiring a video playing mode selected by a target user when the target user clicks a video to be analyzed;
the video playing quality information acquisition module is used for acquiring video playing quality information according to a video playing mode corresponding to a target user and comprises a standard playing mode video playing quality information acquisition unit and a free playing mode video playing quality information acquisition unit;
the video playing quality information primary processing module is used for carrying out primary processing on the video playing quality information acquired by the standard playing mode video playing quality information acquisition unit and the free playing mode video playing quality information acquisition unit;
the equipment database is used for storing standard curves corresponding to the video reference playing parameters on the equipment models;
the cloud analysis platform is used for analyzing the video playing quality information based on the preliminarily processed video playing quality information and the collected video playing quality information, counting playing quality indexes corresponding to the videos to be analyzed and obtaining video playing quality grades corresponding to the videos to be analyzed;
and the data feedback terminal is used for acquiring the video playing quality grade corresponding to the video to be analyzed and feeding the video playing quality grade back to the background of the target video website.
6. A computer storage medium, characterized in that: the computer storage medium is burned with a computer program, and the computer program realizes the method of any one of the above claims 1-4 when running in the memory of the server.
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