WO2019214714A1 - Procédé, système, nœud et support d'informations informatique permettant la commande d'une lecture vidéo - Google Patents

Procédé, système, nœud et support d'informations informatique permettant la commande d'une lecture vidéo Download PDF

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Publication number
WO2019214714A1
WO2019214714A1 PCT/CN2019/086422 CN2019086422W WO2019214714A1 WO 2019214714 A1 WO2019214714 A1 WO 2019214714A1 CN 2019086422 W CN2019086422 W CN 2019086422W WO 2019214714 A1 WO2019214714 A1 WO 2019214714A1
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Prior art keywords
play
video
control policy
script
request
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PCT/CN2019/086422
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English (en)
Chinese (zh)
Inventor
陈伟
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中兴通讯股份有限公司
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Publication of WO2019214714A1 publication Critical patent/WO2019214714A1/fr

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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
    • H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
    • H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64746—Control signals issued by the network directed to the server or the client
    • H04N21/64753—Control signals issued by the network directed to the server or the client directed to the client

Definitions

  • the present disclosure relates to the field of Content Delivery Network (CDN), and in particular, to a video playback control method, system, node, and computer storage medium.
  • CDN Content Delivery Network
  • the current mainstream video CDNs are based on anti-theft chain, improve user quality, reduce bandwidth cost, and provide different quality services according to user types (such as free users and member users), and perform policy control on CDN nodes, such as video data speed limit. Transmission, reduction of video playback rate, termination of playback, etc., are of course not limited to the above-described policy control methods.
  • the Uniform Resource Locator (URL, the Uniform Resource Locator) sent by the terminal to the CDN node contains the policy information, and the URL is decrypted on the CDN node and played according to the source station.
  • the control policy requires the execution of the corresponding play policy; the other way is that the URL sent by the terminal to the CDN node contains the policy information, the CDN node forwards the user request to the policy gateway of the source station, and the policy gateway dynamically returns the policy result, and the CDN node according to the CDN node
  • the strategy result performs the corresponding action.
  • the disadvantage of the first method is that the source station needs to inform the CDN node of the logic of the control policy. At this time, the CDN node can obtain sensitive service information, such as user identifier (ID, Identifier), user level, membership, payment, etc. Information, which has a high commercial value to the source station and is generally reluctant to leak.
  • ID user identifier
  • Information which has a high commercial value to the source station and is generally reluctant to leak.
  • the interaction between the user request and the policy gateway returning the policy result may cause the terminal to start playing longer and the user experience is affected.
  • embodiments of the present disclosure provide a video playback control method, system, node, and computer storage medium.
  • An embodiment of the present disclosure provides a video playback control method, which is applied to a CDN node.
  • the method includes:
  • the first play control policy script is obtained in advance by the CDN node;
  • the embodiment of the present disclosure further provides a CDN node, where the CDN node includes: a receiving unit, an obtaining unit, an executing unit, and an output unit;
  • the receiving unit is configured to receive a video play request from the terminal
  • the acquiring unit is configured to obtain a first play control policy script that matches the video play request received by the receiving unit; the first play control policy script is obtained in advance by the CDN node;
  • the execution unit is configured to execute the first play control policy script obtained by the acquiring unit to obtain a first play policy
  • the output unit is configured to output video data to the terminal based on the first play policy obtained by the execution unit.
  • the embodiment of the present disclosure further provides a computer storage medium on which computer instructions are stored, and when the instructions are executed by the processor, the steps of the video playback control method in the embodiment of the present disclosure are implemented.
  • the embodiment of the present disclosure further provides a video playback control method, where the method includes:
  • the source station generates a play control policy script, and sends the play control policy script to the CDN management server;
  • the CDN management server sends the received play control policy script to all CDN nodes;
  • the embodiment of the present disclosure further provides a video playback control system, where the system includes: at least one source station, a CDN management server, and at least one CDN node;
  • the at least one source station is configured to generate a play control policy script, and send the play control policy script to the CDN management server;
  • the CDN management server is configured to send the received play control policy script to all CDN nodes;
  • the CDN node is configured to receive a video play request from the terminal, obtain a first play control policy script that matches the video play request, and execute the first play control policy script to obtain a first play policy, based on the The first playback policy outputs video data to the terminal.
  • Embodiments of the present disclosure also provide a CDN node, including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the program to implement any of the embodiments of the present disclosure The steps of the video playback control method.
  • a video playback control method, system, node, and computer storage medium provided by an embodiment of the present disclosure, the method includes: receiving a video play request from a terminal; and obtaining a matched first play control policy script based on the video play request;
  • the first play control policy script is obtained in advance by the CDN node; the first play control policy script is executed to obtain a first play policy, and video data is output to the terminal based on the first play policy.
  • the play control policy script is obtained in advance through the CDN node, and the first play control policy script matching the video play request is executed, thereby obtaining a play control policy matching the video play request of the terminal, without using the CDN.
  • the node obtains sensitive information and can also implement the playback control policy specified by the source station; on the other hand, the CDN node does not need to forward the video playback request to the source station, thereby avoiding the extension of the terminal playback start time and greatly improving the user experience.
  • FIG. 1a and 1b are schematic diagrams showing an application architecture of a video playback control method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a video playback control method according to Embodiment 1 of the present disclosure
  • FIG. 3 is another schematic flowchart of a video playback control method according to Embodiment 1 of the present disclosure
  • FIG. 4 is a schematic diagram of a software structure of a CDN node in a video playback control method according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a video playback control method according to Embodiment 2 of the present disclosure
  • FIG. 6 is a schematic structural diagram of a structure of a CDN node according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of another composition structure of a CDN node according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of still another structure of a CDN node according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of hardware components of a CDN node according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of an application architecture of a video playback control method according to an embodiment of the present disclosure
  • the video playback control method application architecture includes: a play policy gateway 11, a CDN management server 12, and a CDN node. 13 and the terminal 14; wherein, between the play policy gateway 11 and the CDN management server 12, between the CDN management server 12 and the CDN node 13, and between the CDN node 13 and the terminal 14, data can be exchanged through the network.
  • the terminal 14 is arranged to request video content from the CDN node 13.
  • the play policy gateway 11 is configured to compile the play control policy script, and deliver the compiled play control policy script to the CDN management server 12.
  • the play policy gateway 11 is located on the source station side, and the source station is the server where the requested video content is located. For example, if a user requests a video content of a xx video website, the source station can be understood as a server to which the xx video website belongs.
  • the play policy gateway 11 may be located in the server where the video content is located, or may exist as a separate gateway device independently of the server where the video content is located.
  • the CDN management server 12 can simultaneously receive the play control policy scripts sent by the play policy gateways 11 of the plurality of source stations, and distribute the play control policy scripts to each CDN node, as shown in FIG. 1b.
  • the CDN management server 12 can Receiving the first play policy gateway 111 (corresponding to the source station 1 with the domain name 1.cp.com), the second play policy gateway 112 (the source station 2 corresponding to the domain name 2.cp.com), and the third play policy gateway respectively.
  • a play control policy script of 113 (corresponding to the source station 3 of the domain name 3.cp.com) distributes each play control policy script to the CDN node 1, the CDN node 2, and the CDN node 3.
  • the CDN management server 12 is configured to perform data interaction with the play policy gateway 11 to obtain a play control policy script delivered by the play policy gateway 11, and send the play control policy script to all CDN nodes 13 after review.
  • the CDN node 13 is configured to obtain a corresponding play control policy script based on the video play request of the different terminal 14, and provide a video play service to the terminal 14 based on the execution of the play control policy script.
  • FIG. 1 is only an example of a system architecture that implements an embodiment of the present disclosure.
  • the embodiment of the present disclosure is not limited to the system structure described in FIG. 1 above, and various embodiments of the present disclosure are proposed based on the system architecture.
  • Embodiments of the present disclosure provide a video playback control method applied to a CDN node.
  • 2 is a schematic flowchart of a video playback control method according to Embodiment 1 of the present disclosure; as shown in FIG. 2, the method includes:
  • Step 101 Receive a video play request from the terminal.
  • the video play request may be represented by a URL.
  • Step 102 Obtain a first play control policy script that matches the video play request; the first play control policy script is obtained in advance by the CDN node.
  • Step 103 Perform the first play control policy script to obtain a first play policy, and output video data to the terminal according to the first play policy.
  • FIG. 3 is another schematic flowchart of a video playback control method according to Embodiment 1 of the present disclosure; as shown in FIG. 3, the method further includes the step 100: obtaining a plurality of play control policy scripts; Each of the plurality of play control policy scripts is obtained by the source station corresponding to each play control policy script and forwarded by the CDN management server.
  • FIG. 4 is a schematic diagram of a software structure of a CDN node in a video playback control method according to an embodiment of the present disclosure; as shown in FIG. 4, in an existing CDN node cache service process, a script engine service is added, based on a script.
  • the engine service, the play control strategy capability open module executes the script, and specifically executes the call of the built-in parameters and functions of the script, thereby implementing the control of the video play strategy.
  • the script engine may use an open source script engine such as JScript or LUA, or may develop a script engine by itself. This embodiment does not limit the script development mode.
  • the function of executing the script implementation includes at least one of the following: HTTP header information acquisition, HTTP request URL information acquisition, HTTP return source URL setting, cache policy setting, video playback control policy setting, asynchronous message notification function library, Basic encryption and decryption libraries, basic function libraries, and more.
  • HTTP header information can be obtained by the following functions:
  • Str ngx.req.raw_header(no_request_line?); means to get the original HTTP header complete string; for example: ngx.print(ngx.req.raw_header());
  • HTTP header information can be obtained by the following functions:
  • Headers ngx.req.get_headers(max_headers?,raw?); indicates that the HTTP header information is obtained in the form of a hash table structure; for example:
  • the HTTP request URL information may be obtained by using a built-in URL to obtain a variable, for example, a URI (Uniform Resource Identifier) part of the URL: ngx.var.uri; and a parameter part of the URL: ngx.var. Args; Get access to IP: ngx.var.remote_addr.
  • a URI Uniform Resource Identifier
  • the HTTP return source URL is set to: ngx.set_source_url(source_url, timeout); where source_url indicates the source address back; timeout indicates the source timeout, in seconds.
  • the cache policy settings include, but are not limited to, whether to cache, cache KEY extraction, fragment cache, and the like.
  • the asynchronous message notification function library includes but is not limited to TCP, UDP, HTTP/HTTPS; for example, the asynchronous message notification function library includes a function including at least one of the following: ngx.socket.udp; udpsock:setpeername; udpsock:send ;udpsock:receive;udpsock:close;udpsock:settimeout;ngx.socket.stream;ngx.socket.tcp;tcpsock:connect;tcpsock:slhandshake;tcpsock:send;tcpsock:receive;tcpsock:receiveuntil;tcpsock:close;tcpsock :settimeout;tcpsock:settimeouts;tcpsock:setoption;tcpsock:setkeepalive;tcpsock:getreusedtimes;ngx.socke
  • the encryption and decryption algorithm included in the basic encryption and decryption library includes not limited to the message digest algorithm fifth version (MD5, Message-Digest Algorithm 5), the RSA encryption algorithm, and the data encryption standard (DES, Data Encryption Standard).
  • the functions included in the basic encryption and decryption library may include at least one of the following: ngx.crc32_short; ngx.crc32_long; ngx.hmac_sha1; ngx.md5; ngx.md5_bin; ngx.sha1_bin.
  • the basic function library includes but is not limited to, not limited to string processing, regular library parsing, Extensible Markup Language (XML), JS object notation (JSON, JavaScript Object Notation) parsing, linked list, queue, and the like.
  • the functions included in the basic function library may include at least one of the following: ngx.re.match; ngx.re.find; ngx.re.gmatch; ngx.re.sub; ngx.re.gsub.
  • the CDN node may update or delete the play control policy script based on configuration information forwarded from the play policy gateway (or source station) via the CDN management server.
  • the corresponding play control policy script is executed to obtain a corresponding play control policy, and the terminal is provided with a video based on the play control policy. service.
  • the obtaining, by the video play request, a matching first play control policy script includes: parsing the video play request, and obtaining source station information carried in the video play request, based on the source The station information queries a plurality of pre-obtained play control policy scripts to obtain a first play control policy script corresponding to the source station information.
  • the video play request may be represented by a URL
  • the source station information is obtained by parsing the URL
  • the domain name information of the source station is specifically obtained
  • the stored multiple play control policy scripts are searched based on the domain name information, and the obtained The first play control policy script corresponding to the domain name information.
  • the executing the first play control policy script to obtain a first play policy, and outputting video data to the terminal according to the first play policy includes: executing the first play control policy script, Parsing the video play request, obtaining a key part carried by the video play request, decrypting the key part to obtain a first play policy, and outputting video data to the terminal based on the first play policy.
  • the CDN node parses the URL that represents the video play request by performing the first play control policy script, and obtains a key part carried by the video play request, where the key part represents the service information of the corresponding terminal; in actual application, the terminal
  • the business information is encoded by a preset encoding method to form the key part in the URL.
  • the service information may include sensitive service information such as a user identifier, a user level, whether it is a member user, and whether the payment is made.
  • the CDN node obtains the key part by executing the first play control policy script, and obtains a corresponding first play policy based on the key part; the first play policy includes a speed limit bandwidth and the like. Then, the CDN node can output video data to the terminal according to the first playing policy (such as the speed limit bandwidth).
  • the method further includes: decrypting the key part to obtain a video A unique identifier of the content, the cache identifier of the cache area of the video content is set to be uniquely identified.
  • the CDN node parses the URL that represents the video play request by executing the first play control policy script, and obtains a key part carried by the video play request, where the key part includes requesting video content; in actual application, the terminal applies the service.
  • the information is encoded by a preset encoding to form the key portion of the URL.
  • the CDN node obtains a unique identifier of the video content by performing a first play control policy script to parse a key part of the URL, and sets the cache identifier of the cache area of the video content.
  • the method further includes: decrypting the key part to obtain the The IP address of the video play request is verified whether the IP address is a legal IP address; when the IP address is verified as an illegal IP address, the video play request is not responded.
  • the CDN node parses the URL that represents the video play request by performing a first play control policy script, and obtains a key part carried by the video play request, where the key part includes an IP address of the terminal;
  • the play control policy script verifies the validity of the IP address; if it is determined that the IP address belongs to an illegal IP address, it does not respond to the video play request of the terminal.
  • the executing the first play control policy script includes: parsing the video play request, obtaining video content information corresponding to the video play request, and determining whether the video content exists based on the video content information. And when the video content does not exist, generating a return source address based on executing the first play control policy script, connecting the source station based on the return source address, and obtaining video content.
  • the CDN node parses the URL that represents the video play request by executing the first play control policy script, and obtains a key part carried by the video play request, where the key part includes requesting the video content, that is, obtaining the video content information;
  • the CDN node determines whether the video content exists according to the video content information; if not, it needs to construct a return source URL, and obtain the video content from the source station based on the return source URL.
  • the generating the return source address based on executing the first play control policy script, connecting the source station based on the return source address, and obtaining the video content includes: generating the script based on executing the first play control policy a primary source address and an alternate source address; determining whether to obtain video content based on the primary source address connection source station; if the video content is not obtained based on the primary source address (eg, the primary source address connection timeout) The source content is obtained by connecting the source station based on the alternate source address.
  • the play control policy script is obtained in advance through the CDN node, and the first play control policy script matching the video play request is executed, thereby obtaining a play control policy matching the video play request of the terminal, without using the CDN.
  • the node obtains sensitive information and can also implement the playback control policy specified by the source station; on the other hand, the CDN node does not need to forward the video playback request to the source station, thereby avoiding the extension of the terminal playback start time and greatly improving the user experience.
  • the embodiment of the present disclosure is deployed in a CDN node by using a play control policy script, so that the CDN node does not need to perform custom development for each source station, and only the source station needs to perform simple script development to achieve docking.
  • FIG. 5 is a schematic flowchart of a video playback control method according to Embodiment 2 of the present disclosure; as shown in FIG. 5, the method includes:
  • Step 201 The source station generates a play control policy script.
  • the source station may generate a play control policy script based on the preset script generation rule.
  • Step 202 The source station sends the play control policy script to the CDN management server.
  • Step 203 The CDN management server reviews the received play control policy script.
  • Step 204 The CDN management server sends the passed playback control policy script to all CDN nodes.
  • Step 205 The CDN node receives a video play request from the terminal.
  • Step 206 The CDN node obtains a matching first play control policy script based on the video play request, and executes the first play control policy script to obtain a first play policy.
  • Step 207 The CDN node outputs video data to the terminal according to the first play policy.
  • the video playback control method of the CDN node may be referred to the foregoing embodiment 1, and is not described in this embodiment.
  • the CDN management server reviews the play control policy script; optionally, the malicious script is injected into the audit subsystem (including not limited to bytecode security detection, sandbox simulation environment security detection). And so on), after the review, the playback control strategy script is distributed to all CDN nodes.
  • NGINX is an interpreter for LUA code written in C
  • LUAJIT is an interpreter for LUA code written in C
  • NGINX's LUA plug-in NGINX_LUA_MODULE is an example of a cache server using an NGINX server, an integrated LUAJIT (LUAJIT is an interpreter for LUA code written in C) script engine, and NGINX's LUA plug-in NGINX_LUA_MODULE.
  • the anti-theft chain and the playback speed limit function are implemented by deploying the LUA script to the CDN node.
  • Step 1 The play policy gateway of the video.qq.com domain name distributes the compiled play control policy script to the CDN management server.
  • Step 2 The CDN management server distributes the video.qq.com domain name and the corresponding playback control policy script to each CDN node connected to it.
  • Step 3 The terminal initiates a video play request to the CDN node, and the video play request can be represented by the following URL: http://202.102.11.12/video.qq.com/1.mp4? iVBORw0KGgoAAAANSUhEUgAAAAEAAAAkCAYAAABIdFAMAAAAGXRFWHRTb2Z0d2Fy.
  • Step 4 The CDN node parses the URL request and finds that the source domain name of the request is video.qq.com, and then executes the play control policy script delivered by the video.qq.com source station.
  • the following is the pseudo code logic part:
  • Step 5 The CDN node executes a specific playback control policy script.
  • the specific script execution process can include:
  • the decryption algorithm obtains the QQ number and is a free user.
  • the source URL address rewriting and the source station multipath disaster recovery function are implemented.
  • Step 1 The play policy gateway of the video.qq.com domain name distributes the compiled play control policy script to the CDN management server.
  • Step 2 The CDN management server distributes the video.qq.com domain name and the corresponding playback control policy script to each CDN node connected to it.
  • Step 3 The terminal initiates a video play request to the CDN node, and the video play request can be represented by the following URL: http://202.102.11.12/video.qq.com/1.mp4? iVBORw0KGgoAAAANSUhEUgAAAAEAAAAkCAYAAABIdFAMAAAAGXRFWHRTb2Z0d2Fy.
  • Step 4 The CDN node parses the URL request and finds that the source domain name of the request is video.qq.com, and then executes the play control policy script delivered by the video.qq.com source station.
  • the following is the pseudo code logic part:
  • Step 5 The CDN node executes the following playback control policy script:
  • the specific script execution process can include:
  • the QQ number and the free user are obtained, and the maximum download bandwidth is set after the user is determined to be a free user (ie, a normal user), that is, the speed limit is controlled.
  • the video content is obtained by connecting the source station based on the URL; if the primary URL connection times out after 3 seconds, the source address is connected by using the alternate source URL to obtain the video content.
  • the rules for caching the KEY are dynamically calculated for the specified domain name.
  • Step 1 The play policy gateway of the video.qq.com domain name distributes the compiled play control policy script to the CDN management server.
  • Step 2 The CDN management server distributes the video.qq.com domain name and the corresponding playback control policy script to each CDN node connected to it.
  • Step 3 The terminal initiates a video play request to the CDN node, and the video play request can be represented by the following URL: http://202.102.11.12/video.qq.com/1.mp4? iVBORw0KGgoAAAANSUhEUgAAAAEAAAAkCAYAAABIdFAMAAAAGXRFWHRTb2Z0d2Fy.
  • Step 4 The CDN node parses the URL request and finds that the source domain name of the request is video.qq.com, and then executes the play control policy script delivered by the video.qq.com source station.
  • the following is the pseudo code logic part:
  • Step 5 The CDN node executes the following playback control policy script:
  • the specific script execution process can include:
  • the QQ number and the free user are obtained, and the maximum download bandwidth is set after the user is determined to be a free user (ie, a normal user), that is, the speed limit is controlled.
  • the user IP address blacklist is denied service.
  • Step 1 The play policy gateway of the video.qq.com domain name distributes the compiled play control policy script to the CDN management server.
  • Step 2 The CDN management server distributes the video.qq.com domain name and the corresponding playback control policy script to each CDN node connected to it.
  • Step 3 The terminal initiates a video play request to the CDN node, and the video play request can be represented by the following URL: http://202.102.11.12/video.qq.com/1.mp4? iVBORw0KGgoAAAANSUhEUgAAAAEAAAAkCAYAAABIdFAMAAAAGXRFWHRTb2Z0d2Fy.
  • Step 4 The CDN node parses the URL request and finds that the source domain name of the request is video.qq.com, and then executes the play control policy script delivered by the video.qq.com source station.
  • the following is the pseudo code logic part:
  • Step 5 The CDN node executes the following playback control policy script:
  • the specific script execution process can include:
  • the embodiment of the present disclosure further provides a video playback control system.
  • the composition of the video playback control system can be as shown in FIG. 1a and FIG. 1b.
  • the system includes: at least one source station, a CDN management server 12, and at least one CDN. Node 13; wherein
  • the at least one source station is configured to generate a play control policy script, and send the play control policy script to the CDN management server 12;
  • the CDN management server 12 is configured to send the received play control policy script to all CDN nodes 13;
  • the CDN node 13 is configured to receive a video play request from the terminal, obtain a first play control policy script that matches the video play request, and execute the first play control policy script to obtain a first play policy, based on the The first playback policy outputs video data to the terminal.
  • Each source station may deploy a play policy gateway 11 , generate a play control policy script through the play policy gateway 11 , and send the play control policy script to the CDN management server 12 .
  • the CDN management server 12 reviews the play control policy script; optionally, the malicious script is injected into the audit subsystem (including not limited to bytecode security detection, sandbox simulation environment). Security detection and other means), after the review, the playback control strategy script is distributed to all CDN nodes.
  • the audit subsystem including not limited to bytecode security detection, sandbox simulation environment. Security detection and other means
  • the terminal 14 sends a video play request to the CDN node 13; the process of resolving the user domain name and globally redirecting until the request is directed to the CDN node is not described in the embodiment of the present disclosure.
  • the CDN node 13 is configured to parse the video play request, obtain source station information carried in the video play request, and query a plurality of play control policy scripts obtained in advance based on the source station information. And obtaining a first play control policy script corresponding to the source station information.
  • the CDN node 13 is configured to execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key part to obtain a first a play policy; outputting video data to the terminal based on the first play policy.
  • the CDN node 13 is configured to execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key part to obtain video content.
  • a unique identifier that sets the cache identifier that is uniquely identified as a cache area of the video content.
  • the CDN node 13 is configured to execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key part to obtain the The IP address of the video play request, verifying whether the IP address is a legal IP address; when verifying that the IP address is an illegal IP address, the video play request is not responded.
  • the CDN node 13 is configured to execute the first play control policy script, parse the video play request, obtain video content information corresponding to the video play request, and determine based on the video content information. Whether the video content exists; when the video content does not exist, generating a return source address based on executing the first play control policy script, connecting the source station based on the return source address, and obtaining video content.
  • FIG. 6 is a schematic structural diagram of a CDN node according to an embodiment of the present disclosure; as shown in FIG. 6, the CDN node includes: a receiving unit 31, an obtaining unit 32, an executing unit 33, and an output unit 34;
  • the receiving unit 31 is configured to receive a video play request from the terminal;
  • the obtaining unit 32 is configured to obtain a first play control policy script that matches the video play request received by the receiving unit 31; the first play control policy script is obtained in advance by the CDN node;
  • the executing unit 33 is configured to execute the first play control policy script obtained by the obtaining unit 32 to obtain a first play policy.
  • the output unit 34 is configured to output video data to the terminal based on the first play policy obtained by the execution unit 33.
  • the receiving unit 31 is further configured to obtain a plurality of play control policy scripts; each of the plurality of play control policy scripts is corresponding to each of the play control policy scripts. Obtained by the source station and forwarded by the CDN management server.
  • the obtaining unit 32 is configured to parse the video play request, obtain source station information carried in the video play request, and query a plurality of play control policy scripts obtained in advance based on the source station information. And obtaining the first play control policy script corresponding to the source station information.
  • the executing unit 33 is configured to execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key part to obtain a first Play strategy.
  • the executing unit 33 is further configured to execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key part to obtain a video.
  • a unique identifier of the content, the cache identifier of the cache area of the video content is set to be uniquely identified.
  • FIG. 7 is another schematic structural diagram of a CDN node according to an embodiment of the present disclosure; as shown in FIG. 7, the CDN node further includes a verification unit 35;
  • the executing unit 33 is further configured to execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key part to obtain the IP of the video play request. address;
  • the verification unit 35 is configured to verify whether the IP address is a legal IP address
  • the output unit 34 is further configured to not respond to the video play request when the verification unit 35 verifies that the IP address is an illegal IP address.
  • FIG. 8 is a schematic structural diagram of a CDN node according to an embodiment of the present disclosure; as shown in FIG. 8, the CDN node further includes a determining unit 36;
  • the executing unit 33 is further configured to execute the first play control policy script, parse the video play request, and obtain video content information corresponding to the video play request;
  • the determining unit 36 is configured to determine whether the video content exists based on the video content information obtained by the executing unit 33;
  • the executing unit 33 is further configured to: when the determining unit 36 determines that the video content does not exist, generate a return source address based on executing the first play control policy script, connect the source station based on the return source address, and obtain Video content.
  • the acquiring unit 32, the executing unit 33, the verifying unit 35, and the determining unit 36 in the CDN node may be used by a central processing unit (CPU) in the terminal in actual applications.
  • a central processing unit CPU
  • DSP digital signal processor
  • MCU Microcontroller Unit
  • FPGA Field-Programmable Gate Array
  • the receiving unit 31 and the output unit 34 in the terminal In practical applications, it can be realized through communication modules (including: basic communication suite, operating system, communication module, standardized interface and protocol, etc.) and transceiver antennas.
  • CDN node provided by the foregoing embodiment is only illustrated by the division of each of the foregoing program modules when performing video playback control. In actual applications, the foregoing processing may be performed by different program modules according to requirements. The internal structure of the CDN node is divided into different program modules to complete all or part of the processing described above. In addition, the CDN node provided by the foregoing embodiment is the same as the embodiment of the video playback control method. For details, refer to the method embodiment, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of hardware components of a CDN node according to an embodiment of the present disclosure; as shown in FIG. 9, including a memory 42, a processor 41, and a computer program stored on the memory 42 and operable on the processor 41, the processing
  • the device 41 is configured to: receive a video play request from the terminal; obtain a first play control policy script that matches the video play request; the first play control policy script is obtained in advance by the CDN node; Performing the first play control policy script to obtain a first play policy, and output video data to the terminal based on the first play policy.
  • the processor 41 is configured to: obtain a plurality of play control policy scripts; each of the plurality of play control policy scripts is configured by each of the play control policies
  • the source station corresponding to the script is forwarded by the CDN management server.
  • the processor 41 is configured to: parse the video play request, obtain source station information carried in the video play request, and query multiple previously obtained based on the source station information. Playing a control policy script to obtain a first play control policy script corresponding to the source station information.
  • the processor 41 is configured to: execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key Partially obtaining a first play policy; outputting video data to the terminal based on the first play policy.
  • the processor 41 is configured to: execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key Partially obtaining a unique identifier of the video content, and setting the cache identifier that is uniquely identified as a cache area of the video content.
  • the processor 41 is configured to: execute the first play control policy script, parse the video play request, obtain a key part carried by the video play request, and decrypt the key Partially obtaining the IP address of the video play request, verifying whether the IP address is a legal IP address; and when verifying that the IP address is an illegal IP address, not responding to the video play request.
  • the processor 41 is configured to: execute the first play control policy script, parse the video play request, and obtain video content information corresponding to the video play request; The video content information determines whether the video content exists; when the video content does not exist, generating a return source address based on executing the first play control policy script, connecting the source station based on the return source address, and obtaining video content.
  • the CDN node also includes a communication interface 43; the various components of the CDN node can be coupled together by a bus system 44. It will be appreciated that bus system 44 is arranged to effect connection communication between these components.
  • the bus system 44 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 44 in FIG.
  • memory 42 can be either volatile memory or non-volatile memory, and can include both volatile and nonvolatile memory.
  • the non-volatile memory may be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), or an Erasable Programmable Read (EPROM). Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory , CD-ROM, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface memory can be a disk storage or a tape storage.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • SSRAM Dynamic Random Access
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhancement Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Dynamic Random Access Memory
  • DRRAM Direct Memory Bus Random Access Memory
  • Processor 41 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 41 or an instruction in a form of software.
  • the processor 41 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like.
  • the processor 41 can implement or perform the various methods, steps, and logic blocks disclosed in the embodiments of the present disclosure.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present disclosure may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can reside in a storage medium located in memory 42, which reads the information in memory 42 and, in conjunction with its hardware, performs the steps of the foregoing method.
  • the CDN node may be configured by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), and Complex Programmable Logic Devices (CPLDs). Complex Programmable Logic Device), FPGA, general purpose processor, controller, MCU, microprocessor, or other electronic component implementation for performing the aforementioned methods.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal processors
  • PLDs Programmable Logic Devices
  • CPLDs Complex Programmable Logic Device
  • FPGA field-programmable Logic Device
  • controller controller
  • MCU microprocessor
  • an embodiment of the present disclosure further provides a computer readable storage medium, such as a memory 42 including a computer program that can be executed by a processor 41 of a CDN node to perform the steps described in the foregoing methods.
  • the computer readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.
  • An embodiment of the present disclosure further provides a computer storage medium having stored thereon computer instructions, the instructions being executed by a processor to: receive a video play request from a terminal; and obtain a first play that matches the video play request Controlling a policy script; the first play control policy script is obtained in advance by the CDN node; executing the first play control policy script to obtain a first play policy, and outputting video data to the terminal based on the first play policy.
  • the instruction is executed by the processor to: obtain a plurality of play control policy scripts; each of the plurality of play control policy scripts is corresponding to each play control policy script Obtained by the source station and forwarded by the CDN management server.
  • the video playback request is parsed, the source station information carried in the video play request is obtained, and a plurality of preset play control policies are obtained based on the source station information. a script that obtains a first play control policy script corresponding to the source station information.
  • the first play control policy script when the instruction is executed by the processor, the first play control policy script is executed, the video play request is parsed, a key part carried by the video play request is obtained, and the key part is decrypted. a play policy; outputting video data to the terminal based on the first play policy.
  • the first play control policy script when the instruction is executed by the processor, the first play control policy script is executed, the video play request is parsed, a key part carried by the video play request is obtained, and the key part is decrypted to obtain a video.
  • a unique identifier of the content, the cache identifier of the cache area of the video content is set to be uniquely identified.
  • the first play control policy script when the instruction is executed by the processor, the first play control policy script is executed, the video play request is parsed, a key part carried by the video play request is obtained, and the key part is obtained.
  • the IP address of the video play request is verified whether the IP address is a legal IP address; when the IP address is verified as an illegal IP address, the video play request is not responded.
  • the instruction is executed by the processor to: execute the first play control policy script, parse the video play request, obtain video content information corresponding to the video play request; and based on the video content information Determining whether the video content exists; when the video content does not exist, generating a return source address based on executing the first play control policy script, connecting the source station based on the return source address, and obtaining video content.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.
  • the above-described integrated unit of the present disclosure may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product.
  • the technical solution of the embodiments of the present disclosure may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.
  • a video playback control method, system, node, and computer storage medium provided by an embodiment of the present invention have the following beneficial effects: a playback control policy script is obtained in advance through a CDN node and a first playback control matching the video playback request is performed.
  • the policy script obtains a play control policy that matches the video play request of the terminal, and the CDN node can obtain the play control policy specified by the source station without obtaining sensitive information; on the other hand, the CDN node does not need to forward the video play request to the source. Station, to avoid the terminal playback start time is extended, greatly improving the user experience.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé, un système, un nœud et un support d'informations informatique permettant de commander une lecture vidéo. Le procédé de commande de lecture vidéo peut être appliqué à un nœud de réseau de distribution de contenu (CDN). Le procédé consiste : à recevoir une demande de lecture vidéo en provenance d'un terminal ; à obtenir un premier script de stratégie de commande de lecture correspondant à la demande de lecture vidéo ; le premier script de stratégie de commande de lecture étant obtenu par le nœud de CDN à l'avance ; à exécuter le premier script de stratégie de commande de lecture, de façon à obtenir une première stratégie de lecture, et à émettre en sortie des données vidéo vers le terminal en fonction de la première stratégie de lecture.
PCT/CN2019/086422 2018-05-11 2019-05-10 Procédé, système, nœud et support d'informations informatique permettant la commande d'une lecture vidéo WO2019214714A1 (fr)

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