CN110611828A - Method for determining video playing code rate, video request and issuing method - Google Patents
Method for determining video playing code rate, video request and issuing method Download PDFInfo
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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]
- H04N21/20—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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
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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]
- H04N21/20—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
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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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
- H04N21/44245—Monitoring the upstream path of the transmission network, e.g. its availability, bandwidth
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate
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Abstract
The embodiment of the invention relates to the field of multimedia playing and discloses a method for determining video playing code rate, a video request and a issuing method. The method for determining the video playing code rate comprises the following steps: extracting a main body identification of the video based on the content of the video; evaluating the popularity of the subject identification, wherein the popularity is used for representing the attention degree of the subject identification; and determining the target code rate of the video according to the popularity of the main body identifier, and realizing a new method for adjusting the video playing code rate, so that the video playing code rate can be adjusted in a self-adaptive manner.
Description
Technical Field
The embodiment of the invention relates to the field of multimedia playing, in particular to a method for determining video playing code rate, a video request and a sending method.
Background
The video website refers to a network medium which enables internet users to smoothly publish, browse and share video works on line under the support of a perfect technical platform. Video websites are familiar to use by vast Internet users, and are used as indispensable platforms in social contact, entertainment and other aspects.
In the prior art, if a user needs to browse a certain video on a video website, a request for the video needs to be initiated on a client side of the video website, and a server side of the video website issues corresponding multimedia data, so that the user can view the requested video on the user side. In view of user experiences such as fluency during online video playing, video websites often provide multiple video bit rates. The higher the code rate is, the higher the video definition is, but the same video has larger data volume and more required flow; conversely, the lower the code rate, the lower the video definition, but the same video has a smaller data size and requires less traffic. The inventor finds that: when a user requests a video, the user can operate and select the required code rate at the client according to the requirement, so that the problem of adjustable video playing code rate can be solved, the manual adjustment is more complicated, the operation complexity of the user is increased, and meanwhile, the adjustment mode is single and cannot be suitable for various application scenes.
Disclosure of Invention
The embodiment of the invention aims to provide a method for determining video playing code rate, a video request and a issuing method, and realizes a novel method for adjusting the video playing code rate, so that the video playing code rate can be adjusted in a self-adaptive manner.
In order to solve the above technical problem, an embodiment of the present invention provides a method for determining a video playing code rate, including: extracting a main body identification of a video based on the content of the video; evaluating the popularity of the subject identification, the popularity being used to characterize the degree to which the subject identification is concerned; and determining the target code rate of the video according to the popularity of the main body identifier.
An embodiment of the present invention also provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method for determining a video playback bit rate as described above.
The embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program, wherein the computer program, when executed by a processor, implements the method for determining a video playing code rate as described above.
The embodiment of the invention also provides a video request method, which is applied to a user side and comprises the following steps: obtaining the target code rate of the video to be requested by the method; and requesting a video file corresponding to the target code rate.
The embodiment of the invention also provides a video issuing method, which is applied to a server and comprises the following steps: receiving a video request from a user side, and determining a video to be issued corresponding to the request; obtaining the target code rate of the video to be transmitted by the method; and issuing the video file of the video to be issued corresponding to the target code rate.
An embodiment of the present invention further provides a video playing system, including: a user side and a server side; the user side is used for requesting the video file according to the video request method; the video playing device is also used for playing the video file after receiving the video file; and the server is used for issuing the video file corresponding to the video according to the target code rate specified in the request after receiving the request aiming at the video file from the user side.
An embodiment of the present invention further provides a video playing system, including: a user side and a server side; the server is used for issuing a video file corresponding to the specified video at the target code rate in the video request according to the video issuing method after receiving the video request from the user side; and the user side is used for playing the video file after receiving the video file.
Compared with the prior art, the implementation mode of the invention has the main differences and the effects that: by extracting the main body mark related to the video content, the target code rate suitable for the video is further determined according to the popularity of the main body mark. The target code rate of the video is adaptively adjusted according to the popularity of the video content, so that the target code rate is adjusted by taking the video content and the popularity thereof as reference, and the method for adjusting the video playing code rate is enriched.
As a further improvement, the subject identification of the video is extracted from information of one or a combination of the following: a title of the video, a category label of the video, a user comment of the video, a face in the video that is identified, a background music of the video. The scheme defines the extraction source of the main body identification, so that the extraction process is simple, convenient and accurate.
As a further improvement, the popularity of the subject identification is assessed by: searching for a video associated with the subject identifier; and determining the popularity of the main body identification according to the forwarding amount and/or the sharing amount of the searched video. The scheme defines a method for determining popularity.
As a further improvement, the popularity of the subject identification is assessed by: and searching the hot index value of the subject identification on a third-party website, and taking the hot index value as the popularity. According to the scheme, another method for determining the popularity is determined, and the popularity can be determined more accurately and objectively by means of the hotspot parameters of the third-party website.
As a further improvement, the determining a target bitrate of the video according to the popularity of the subject identifier includes: according to the popularity of the main body identification, estimating the request quantity of the video in a future preset time length on a platform to which the video belongs; and determining the target code rate of the video according to the request quantity of the video in the future preset time length. Because the request quantity of the video is closely related to the popularity of the video content, the request quantity estimated by using the popularity is more accurate, so that the determined target code rate is suitable for the actual situation of the server side, and the network congestion caused by the sudden increase of the video request quantity of the server is avoided.
As a further improvement, the determining a target bitrate of the video according to the request amount of the video within the future preset time duration includes: calculating the required plan bandwidth based on the default code rate of the video according to the request quantity; if the available bandwidth of a first server of a platform where the video is located is larger than the planned bandwidth, determining the target bitrate to be the default bitrate of the video; and if the available bandwidth of the first server is smaller than or equal to the planned bandwidth, determining the target code rate smaller than the default code rate. The scheme defines the determination mode of the target code rate and calculates the target code rate through the available bandwidth.
As a further improvement, when the available bandwidth of the first server of the platform where the video is located is less than or equal to the planned bandwidth, the target bitrate that is less than the default bitrate is determined by: calculating a first code rate, which is an available bandwidth/the requested amount of the first server; and determining the target code rate smaller than the default code rate according to the first code rate. The scheme provides a mode for determining the proper target code rate, and is simple and accurate.
As a further improvement, the requested amount of the video in a future preset time length on the platform to which the video belongs is estimated by the following method: acquiring the current popularity of the subject identifier; according to the current popularity, estimating a first popularity of the main body identification in the future preset time length through a big data prediction algorithm; determining a current requested amount of video associated with the subject identification on the platform; and determining the request amount of the video in the future preset time length according to the current popularity, the first popularity and the current request amount.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a flowchart of a method for determining a video playing code rate according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for determining a video playback bitrate according to a second embodiment of the present invention;
fig. 3 is a flowchart of predicting a requested amount of a video on a platform to which the video belongs within a future preset time period in a method for determining a video playing code rate according to a second embodiment of the present invention;
fig. 4 is a flowchart of determining a target bitrate of a video in a method for determining a bitrate of playing a video according to a second embodiment of the invention;
FIG. 5 is a schematic structural diagram of an electronic device according to a fourth embodiment of the invention;
fig. 6 is a flowchart of a video requesting method according to a sixth embodiment of the present invention;
fig. 7 is a flowchart of a video distribution method according to a seventh embodiment of the present invention;
fig. 8 is a schematic diagram of a video playback system according to an eighth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
The first embodiment of the invention relates to a method for determining video playing code rate.
The method for determining the video playing code rate in this embodiment may be applied to the client, for example: mobile phones, computers, tablet PADs, etc.; the method can also be used for a server side of a video playing website, such as a server, and the like, and is not limited herein. The flow of the method for determining the video playing code rate in this embodiment is shown in fig. 1, which specifically includes the following steps:
in step 101, a subject identifier of a video is extracted based on the content of the video.
Specifically, the subject identifier of the video can be extracted from information of one or a combination of the following: the method comprises the following steps of video title, video classification label, video user comment, recognized face in the video and background music of the video.
Taking the title as an example, if the title of a video is "singing concert with zhang san", the name "zhang san" can be extracted from the video as the main body identifier of the video.
Taking background music of classified videos as an example, song names of the background music can be identified through a program for identifying songs by listening to the videos, one can directly use the identified song names as a main body identifier of the videos, and the other can further determine song authors according to the identified song names and use the song authors as the main body identifier of the videos.
At step 102, the popularity of the subject identification is evaluated.
In particular, popularity is used to characterize the degree to which subject identification is focused. More specifically, the hot index value of the subject identifier can be found on the third-party website, and the hot index value is used as the popularity.
Taking a third-party website as an example of "Baidu", the Baidu index is a hotspot index value disclosed in Baidu, and the Baidu index corresponding to the main body identifier can be obtained by searching on a home page of the "Baidu index" by using the main body identifier determined in step 101 as a keyword. And then, taking the searched hundredth index as the popularity of the subject identification.
In addition, besides the hundredth index provided by the hundredth, other third-party websites can provide hot spot index values, such as microblog popularity provided by microblogs and platform popularity provided by trembles. The hot index value of the third-party website can be obtained by comprehensively considering data such as occurrence times, forwarding and comments of the keywords. If the microblog popularity is calculated by the following formula:
the microblog popularity is 20% × ln (forwarding number +1) + 20% × ln (number of comments +1) + 25% × ln (number of original microblog forwarding number +1) + 25% × ln (number of original microblog comments +1) + 10% × ln (number of praise comments + 1);
for another example, the popularity of a trembler platform is calculated by the following formula:
the popularity of the tremble platform is {0.2 × ln (number of works + 100+1) +0.3 × 0.2 × ln (volume played/10 +1) +0.8 × ln (average volume played +1) +0.5 [0.4 × ln (number of comments +1) ] +0.45 × ln (number of comments +1) +0.15 × ln (number of shares +1) ] } 100;
according to the formula, the data source light of the third-party website has strong parameter comprehensiveness, the represented popularity is accurate, and the reference is strong.
And 103, determining the target code rate of the video according to the popularity of the main body identifier.
Specifically, the target bitrate can be determined according to a predetermined mapping relationship between popularity and bitrate.
If the preset code rate template includes A, B, C code rates from low to high, and three ranges of popularity corresponding to the code rate A, B, C are set, respectively greater than 100000, 2000-100000 and less than 2000, then when the popularity is determined to be 5000, the corresponding target code rate can be determined to be the code rate B according to the mapping relationship.
In addition, in practical application, the adjustment may be performed according to a preset video bitrate, for example, the correspondence between the preset popularity and the bitrate is in inverse proportion, that is, the higher the popularity is, the lower the corresponding target bitrate is, the lower the popularity is, and the higher the corresponding target bitrate is. In one example, a reference value of popularity may be predetermined, and after determining popularity in step 102, the popularity may be compared with the reference value, and if the popularity is smaller than the reference value, the bitrate may be increased according to the preset video bitrate, and the larger the difference between the detected value and the reference value is, the larger the bitrate increase amount is.
Therefore, in the embodiment, the subject identifier related to the video content is extracted, and the target bitrate suitable for the video is further determined according to the popularity of the subject identifier. The target code rate of the video is adaptively adjusted according to the popularity of the video content, so that the target code rate is adjusted by taking the video content and the popularity thereof as reference, and the method for adjusting the video playing code rate is enriched. Meanwhile, the extraction source of the main body identification is determined, so that the extraction process is simple, convenient and accurate. In addition, a popularity determination method is provided, and the popularity can be determined more accurately and objectively by means of the hotspot index of a third-party website, so that the finally determined code rate has higher practicability.
The second embodiment of the invention relates to a method for determining video playing code rate. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: in the first embodiment, the target bitrate is determined by the mapping relationship between popularity and video bitrate. In the second embodiment of the present invention, the request amount in a future period of time is estimated according to the popularity, and the target bitrate is determined according to the request amount. Because the request quantity of the video is closely related to the popularity of the video content, the request quantity estimated by using the popularity is more accurate, so that the determined target code rate is suitable for the actual situation of the server side, and the network congestion caused by the sudden increase of the video request quantity of the server is avoided.
Fig. 2 shows a flowchart of a method for determining a video playback code rate in this embodiment, which includes the following steps:
step 201 and step 202 in this embodiment are similar to step 101 and step 102 in the first embodiment, and are not described again here.
And step 203, estimating the request amount of the video in the future preset time length on the platform to which the video belongs according to the popularity of the main body identifier.
Specifically, in this embodiment, the requested amount of the video in the future preset time duration on the platform to which the video belongs can be estimated in the manner shown in fig. 3:
step 2031, according to the popularity of the subject identifier, estimating the first popularity of the subject identifier in the future preset time length by a big data prediction algorithm.
Specifically, the popularity obtained in step 202 may be used as the historical popularity or the current popularity, and based on the popularity value, the trend within the future preset time duration is predicted through a big data prediction algorithm. The big data prediction algorithm may be, for example, an SVM (Support Vector Machine algorithm), a random forest, or the like. Taking the preset time length in the future as 1 hour in the future as an example, the popularity of 1 hour in the future can be obtained through a big data prediction algorithm and is marked as a first popularity.
At step 2032, the current requested amount of video associated with the subject identification on the platform is determined.
Specifically, the current request amount may be obtained from a video platform with a code rate to be determined, and each video corresponding to the subject identifier is obtained and then further accumulated.
Step 2033, determining the request amount of the video in the future preset time length according to the current popularity, the first popularity and the current request amount.
Specifically, based on the first popularity and the popularity obtained in step 202, the tendency coefficient Tx of the subject identifier in one hour in the future can be determined, and the calculation formula is as follows:
tx-future 1 hour prevalence/current prevalence;
the trend coefficient can also be understood as a variation trend, and the variation trend of the popularity and the variation trend of the video request amount are in positive correlation, so the variation trend of the video request amount can be estimated according to the trend coefficient of the popularity. Therefore, the requested amount of the video in the future preset time length can be determined according to the trend coefficient and the current requested amount.
In one example, a trend coefficient Tx of 1.2 is calculated, i.e., a change in popularity of 20% in the next hour is estimated to be a 20% increase in the amount of video requests in the next hour. If it is further determined that the current requested amount of video associated with the subject identifier on the platform is 10000, then the current requested amount of video associated with the subject identifier on the platform for one hour in the future can be estimated to be 10000 (1+ 20%) -12000.
And step 204, determining the target code rate of the video according to the request quantity of the video in the future preset time length.
Specifically, when the video request amount in a short time is too large, a server of a platform to which the video belongs may be paralyzed, and at the moment, the requested video cannot be viewed at a high probability at a client, so that the user experience is very poor, if the request amount can be predicted, the flow capacity which can be borne by the server side can be predicted in advance, and when the request amount cannot be borne, the video data with low code rate is actively reduced and the basic viewing experience of the user is ensured.
Further, the present embodiment determines the target bitrate of the video by using the method shown in fig. 4, and the specific process is as follows:
step 2041, calculating the required planned bandwidth based on the default code rate of the video according to the request amount.
Specifically, the required bandwidth is (Bx), x is a video list associated with the subject identifier on the platform in the past 1 hour, and the required bandwidth is calculated through the following formula;
(Bx)＝A*m；
wherein, a is a request quantity of the video with the code rate to be determined obtained in step 203 within a preset time length in the future on the platform to which the video belongs, and m is a value of the default code rate of the video.
Step 2042, judging whether the available bandwidth of the first server of the platform where the video is located is greater than the planned bandwidth; if yes, go to step 2043; if not, go to step 2044.
Specifically, the available bandwidth indicates the bandwidth available to the server side for the video data distribution function, and a preset value can be given. In practical applications, the available bandwidth may also be obtained according to the current bandwidth data. The bandwidth usage condition of the server side probably includes the bandwidth occupied by the video in the video service and the bandwidth occupied by other services except the video service, and the bandwidth occupied by other services can be considered as basically unchanged because the video service in the server of the platform where the video is located occupies a larger bandwidth proportion.
More specifically, the step compares the actually obtained available bandwidth with the planned bandwidth calculated according to the estimated value, and the specific formula is as follows: planned bandwidth-total bandwidth-other traffic bandwidth.
Then, step 2043 or step 2044 is determined to be executed according to the size result of the comparison.
Step 2043, determine the target bitrate to be the default bitrate of the video.
Specifically, if the available bandwidth is larger than the planned bandwidth, the server is considered to be able to bear the subsequent video request amount, so the target bitrate can adopt the default bitrate originally set by the video.
Step 2044, determine the target code rate less than the default code rate.
Specifically, if the available bandwidth is less than or equal to the planned bandwidth, the server is considered to be unable to accept the subsequent video request amount, and the predetermined bitrate can be reduced, for example, a minimum value in a preset bitrate template is selected as the target bitrate.
In another example, the maximum bitrate that can be borne by the server (i.e. the first bitrate) can be calculated according to the available bandwidth, and the specific formula is as follows:
a first code rate is an available bandwidth/requested amount of the first server;
the requested amount is the requested amount determined in step 203.
And then, selecting a code rate value smaller than the first code rate as a target code rate according to a preset code rate template. If the first code rate is calculated to be 658kbps and the value smaller than the first code rate and closest to the first code rate in the code rate template is 600kbps, the target code rate is determined to be 600 kbps.
In addition to the above confirmation method, in practical applications, the first code rate may be directly confirmed as the target code rate, which is not limited herein.
As can be seen, the target bitrate of the video is determined in the above steps 203 and 204 according to the popularity of the subject identifier.
Therefore, in the embodiment, the request amount in a future period of time is estimated according to the popularity, and the target code rate is determined according to the request amount. Because the request quantity of the video is closely related to the popularity of the video content, the request quantity estimated by using the popularity is more accurate, so that the determined target code rate is suitable for the actual situation of the server side, and the network congestion caused by the sudden increase of the video request quantity of the server is avoided. Meanwhile, several modes for determining the target code rate are further provided, so that the implementation mode is more flexible and changeable, and in practical application, different setting modes can be selected according to requirements to meet different application requirements.
The third embodiment of the invention relates to a method for determining video playing code rate. The third embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: in the first embodiment, the popularity of the subject identifier is determined through the hot spot index value of the third-party website, and in the embodiment, the popularity of the subject identifier is determined according to the forwarding amount and the sharing amount of the video.
Specifically, when determining the popularity of the subject identifier, the videos associated with the subject identifier are searched first, and then the popularity of the subject identifier is determined according to the forwarding amount and the sharing amount of the searched videos. The specific determination mode may be set according to actual needs, for example, according to the following formula:
popularity is the amount shared by forwarding amount;
the forwarding amount may be a sum of forwarding amounts of all videos associated with the subject identifier, and the sharing amount may be a sum of sharing amounts of all videos associated with the subject identifier.
In addition, in practical application, the forwarding amount or the share amount value can be directly used as the popularity, and the popularity can be determined in other manners, which are not listed one by one.
Therefore, the embodiment provides another mode for determining the popularity of the subject identifier, so that the method is more flexible and changeable, and in practical application, different popularity determination modes can be selected according to actual requirements, so that the method is suitable for different requirements.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A fourth embodiment of the present invention relates to an electronic apparatus, as shown in fig. 5, including:
at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the method for determining the video playback bit rate according to any one of the first to third embodiments.
Where the memory and processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting together one or more of the various circuits of the processor and the memory. The bus may also connect various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.
The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
A fifth embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The computer program realizes the above-described method embodiments when executed by a processor.
A sixth embodiment of the present invention relates to a video requesting method.
The present embodiment is applied to a user side, and a video request process thereof is shown in fig. 6, which specifically includes:
step 601, obtaining a target code rate of a video to be requested by a method for determining a video playing code rate.
Specifically, the method for determining the video playing code rate may be any one of the methods for determining the video playing code rate in the first embodiment to the third embodiment.
Step 602, a video file corresponding to a target bitrate is requested.
More specifically, when a user browses a video by using a user side, the user sees a certain video which the user wants to browse, and plays the corresponding video by clicking a 'play' key or a 'cache' key on a page, the user sends a video request after the key is triggered, and the video request comprises the video to be requested and the target code rate of the video to be requested, which is obtained by the determining method.
Therefore, when a user side requests a certain video, the target code rate of the video can be determined first, so that the video can be presented more smoothly in the watching process, and the video watching experience of the user can be improved.
The seventh embodiment of the present invention relates to a video distribution method.
The embodiment is applied to a server, and a video issuing process of the embodiment is shown in fig. 7, and specifically includes:
step 701, receiving a video request from a user side, and determining a video to be transmitted corresponding to the request.
Specifically, after receiving a video request, the server in this embodiment parses the video request to obtain a video to be delivered corresponding to the request.
Step 702, obtaining the target code rate of the video to be transmitted by the method for determining the video playing code rate.
Specifically, the method for determining the video playing code rate may be any one of the methods for determining the video playing code rate in the first embodiment to the third embodiment.
And 703, issuing a video file of the video to be issued corresponding to the target code rate.
Specifically, after the server issues the video file, the server issues the video file according to the target code rate determined in step 702, and the server can adaptively adjust the target code rate of the video to be issued.
Therefore, in the embodiment, the server side avoids video playing jamming at the user side caused by network congestion in a mode of pre-judging and adjusting in advance, and further improves the experience of the user when watching the video.
An eighth embodiment of the present invention relates to a video playback system, as shown in fig. 8, including: a user side and a server side.
The client is configured to request a video file according to the video request method in the sixth embodiment; and the video playing module is also used for playing the video file after receiving the video file. Specifically, in practical applications, there may be a plurality of ues, which are not listed here.
And the server is used for issuing the video file corresponding to the video according to the target code rate specified in the request after receiving the request aiming at the video file from the user side.
Therefore, the method improves the determination mode of the target code rate at the user side, adaptively adjusts the target code rate, and improves the experience of the user for watching the video.
The ninth embodiment of the present invention also relates to a video playback system, as also shown in fig. 8, including: a user side and a server side.
The server is configured to, after receiving the video request from the user, issue a video file corresponding to the video specified in the video request at the target bitrate according to the video issuing method in the seventh embodiment.
And the user side is used for playing the video file after receiving the video file. Specifically, in practical applications, there may be a plurality of ues, which are not listed here.
Therefore, the method improves the determination mode of the target code rate at the server, adaptively adjusts the target code rate, and improves the experience of a user for watching the video.
Those skilled in the art can understand that all or part of the steps in the method according to the above embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (13)
1. A method for determining a video playing code rate is characterized by comprising the following steps:
extracting a main body identification of a video based on the content of the video;
evaluating the popularity of the subject identification, the popularity being used to characterize the degree to which the subject identification is concerned;
and determining the target code rate of the video according to the popularity of the main body identifier.
2. The method for determining video playback rate of claim 1, wherein the body id of the video is extracted from information of one or a combination of the following:
a title of the video, a category label of the video, a user comment of the video, a face in the video that is identified, a background music of the video.
3. The method of claim 1, wherein the popularity of the subject identifier is evaluated by:
searching for a video associated with the subject identifier;
and determining the popularity of the main body identification according to the forwarding amount and/or the sharing amount of the searched video.
4. The method of claim 1, wherein the popularity of the subject identifier is evaluated by:
and searching the hot index value of the subject identification on a third-party website, and taking the hot index value as the popularity.
5. The method for determining the video playing code rate according to claim 1, wherein the determining the target code rate of the video according to the popularity of the subject identifier comprises:
according to the popularity of the main body identification, estimating the request quantity of the video in a future preset time length on a platform to which the video belongs;
and determining the target code rate of the video according to the request quantity of the video in the future preset time length.
6. The method for determining the video playing code rate according to claim 5, wherein the determining the target code rate of the video according to the requested amount of the video within the preset time duration in the future comprises:
calculating the required plan bandwidth based on the default code rate of the video according to the request quantity;
if the available bandwidth of a first server of a platform where the video is located is larger than the planned bandwidth, determining the target bitrate to be the default bitrate of the video;
and if the available bandwidth of the first server is smaller than or equal to the planned bandwidth, determining the target code rate smaller than the default code rate.
7. The method for determining video playing code rate according to claim 5, wherein the requested amount of the video in the future preset time duration on the platform to which the video belongs is estimated by:
according to the popularity of the main body identification, estimating a first popularity of the main body identification in the future preset time length through a big data prediction algorithm;
determining a current requested amount of video associated with the subject identification on the platform;
and determining the request amount of the video in the future preset time length according to the popularity, the first popularity and the current request amount.
8. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of determining a video playback rate of any of claims 1 to 7.
9. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method for determining a video playback rate according to any of claims 1 to 7.
10. A video request method is applied to a user side and comprises the following steps:
obtaining a target code rate of a video to be requested by the method of any one of claims 1 to 7;
and requesting a video file corresponding to the target code rate.
11. A video issuing method is characterized in that the video issuing method is applied to a server side and comprises the following steps:
receiving a video request from a user side, and determining a video to be issued corresponding to the request;
obtaining a target code rate of the video to be transmitted by the method of any one of claims 1 to 7;
and issuing the video file of the video to be issued corresponding to the target code rate.
12. A video playback system, comprising: a user side and a server side;
the user terminal, configured to request a video file according to the video request method as claimed in claim 10; the video playing device is also used for playing the video file after receiving the video file;
and the server is used for issuing the video file corresponding to the video according to the target code rate specified in the request after receiving the request aiming at the video file from the user side.
13. A video playback system, comprising: a user side and a server side;
the server is configured to, after receiving a video request from the user side, issue a video file corresponding to a specified video at a target bitrate in the video request according to the video issuing method of claim 11;
and the user side is used for playing the video file after receiving the video file.
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