WO2023082764A1

WO2023082764A1 - Content recording method, content playing method, cdn system, and storage medium

Info

Publication number: WO2023082764A1
Application number: PCT/CN2022/114279
Authority: WO
Inventors: 杨志; 马正园
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-11-12
Filing date: 2022-08-23
Publication date: 2023-05-19
Also published as: CN116132698A

Abstract

Provided in the present application are a content recording method, a content playing method, a CDN system, and a storage medium. The content recording method comprises: acquiring trend time information which is pre-associated with a trend channel (S110); and according to the trend time information, recording a live streaming code stream of the trend channel to a cache device, so as to obtain a cached code stream (S120).

Description

Content recording method, playback method, CDN system, storage medium

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202111338139.3 and a filing date of November 12, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to but not limited to the field of video media services, and in particular relates to a content recording method, a playback method, a CDN system, and a storage medium.

Background technique

Content Delivery Network (CDN) can provide caching and accelerated content caching at the edge of the network, so as to provide users with media services at service nodes close to users, which can effectively reduce the pressure on service source sites and bearer networks, and provide users with more Fast service response and more stable streaming media service. Internet Protocol Television (IPTV) can store the channel code stream of live programs through the streaming media equipment of the CND system, send network packets to the set-top box to assemble and restore the video, and provide users with channel playback or time-shifting services.

In order to provide faster response, cache devices such as solid state drives (Solid State Drive, SSD) or non-volatile high-speed transmission bus (Non-Volatile Memory express, NVME) can be used to store file blocks, but the cache device The cost is high and cannot be widely used. Therefore, the operator usually records the channel code stream to the low-speed cache device, and after performing heat statistics on the content of the playback or time-shifted access, the high-hot access file blocks are removed from the low-speed cache. In the device copy cache device, when the file block of the access content has a copy of the cache device, the content is read from the cache device first. However, the heat statistics and copying and migration of file blocks have a certain lag and will consume a certain amount of operation time, making it difficult to meet the requirements of high real-time services such as live broadcast time shifting.

Contents of the invention

The following is an overview of the topics described in detail in this article. This summary is not intended to limit the scope of the claims.

Embodiments of the present application provide a content recording method, a playback method, a CDN system, and a storage medium.

In the first aspect, the embodiment of the present application provides a content recording method, which is applied to a CDN system, and the CDN system includes a cache device, and the method includes: obtaining hot spot time information pre-associated with hot channel; according to the hot spot time Information, recording the live code stream of the hot channel to the cache device to obtain the cache code stream.

In the second aspect, the embodiment of the present application provides a method for playing content, which is applied to a CDN system. The CDN system includes a cache device. The method includes: acquiring a live service request, and determining the live broadcast service request corresponding to the live broadcast content; obtain the target code stream corresponding to the live content from the cached code stream, wherein the cached code stream is recorded in the live code stream of the hotspot channel according to the hotspot time information, and the hotspot time information is related to the The hot channel is associated; the target code stream is played.

In the third aspect, the embodiment of the present application provides a CDN system, including: a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the following The content recording method described in one aspect, or, implement the content playing method described in the second aspect.

In the fourth aspect, the embodiment of the present application provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the content recording method as described in the first aspect, or to implement the content recording method as described in the first aspect. The content playing method described in the second aspect.

Additional features and advantages of the application will be set forth in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solution of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical solution of the present application, and do not constitute a limitation to the technical solution of the present application.

FIG. 1 is a flowchart of a content recording method provided by an embodiment of the present application;

FIG. 2 is a block diagram of a CDN system provided by another embodiment of the present application;

Fig. 3 is a flow chart of determining a hotspot channel provided by another embodiment of the present application;

Fig. 4 is a flowchart of determining hot content provided by another embodiment of the present application;

Fig. 5 is a flow chart of determining a list of hot channels provided by another embodiment of the present application;

FIG. 6 is a flow chart of determining a target directory provided by another embodiment of the present application;

FIG. 7 is a flow chart of synchronous recording provided by another embodiment of the present application;

Fig. 8 is a flowchart of a content playing method provided by another embodiment of the present application;

FIG. 9 is a flowchart of obtaining a target code stream provided by another embodiment of the present application;

FIG. 10 is a flow chart of obtaining a target code stream from a target directory provided by another embodiment of the present application;

Fig. 11 is a flow chart of reporting service bills provided by another embodiment of the present application;

Figure 12 is a flowchart of an example provided by the present application;

Fig. 13 is a device diagram of a CDN system provided by another embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

It should be noted that although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, it can be executed in a different order than the module division in the device or the flowchart in the flowchart. steps shown or described. The terms "first", "second" and the like in the specification, claims or the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific order or sequential order.

The present application provides a content recording method, a playback method, a CDN system, and a storage medium. The content recording method includes: acquiring hotspot time information pre-associated with hotspot channels; Record to the cache device to obtain the cache code stream. According to the technical solution of this embodiment, the live code stream to be recorded can be determined in advance, effectively speeding up the response time of high-real-time service review or time-shifted access, improving user experience, and effectively reducing the overall operating load of the server.

The embodiments of the present application will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 1 is a flowchart of a content recording method provided by an embodiment of the present application, the content recording method is applied to a CDN system, and the CDN system includes a cache device, including but not limited to step S110 and step S120.

Step S110, acquiring hotspot time information pre-associated with hotspot channels.

It should be noted that the hotspot time information is for a specific hotspot channel. In actual use, the number of hotspot channels can be arbitrary, and a hotspot channel is a channel with hotspot content. Therefore, it can be configured for each hotspot channel. Hotspot time information, so that each hotspot channel can trigger the recording of live stream according to its own hotspot time information.

It should be noted that this embodiment pre-configures the hotspot time information, starts recording after the hotspot time starts, and stops recording after the hotspot time ends. The live stream has been obtained during the live broadcast. When a time-shift request is made, it can directly read the recorded live code stream for playback, without performing heat statistics and file migration after the live content is broadcast, which effectively improves the response efficiency of live broadcast playback or live time-shifting, and gives full play to the The responsiveness advantage of the cache device improves the user experience.

It should be noted that hot channels can be determined through historical data, such as analyzing the popularity of broadcast content in the past period of time to determine historical hot content, and TV programs usually have a certain period of regularity, so historical hot content The prediction of hot channels has certain reference, and the time corresponding to the hot content is determined as hot time information, so as to realize the pre-configuration of hot time information. Of course, hot channels can also be pre-determined according to other methods. This is not limited.

Step S120, according to the time information of the hotspot, record the live stream of the hot channel to the cache device to obtain the cached stream.

It should be noted that the technical solution of this embodiment can be applied in the CDN system shown in Figure 2. In this CDN system, an encoder and a streaming media channel recording module are included. In the dotted line part, the encoder encodes the live content of the hot channel to obtain the live code stream, and the live code stream is recorded through the streaming media channel recording module, and the obtained file is saved to the cache device through the file storage server module. It should be noted that the file type stored in the cache device can be adjusted according to actual needs, for example, it can be a live stream, and of course it can also be a file block obtained according to the live stream, which is not limited in this embodiment.

It is worth noting that in common solutions, in order to improve the response speed of requests, the mode of full high-speed storage devices is usually used, but this will cause high costs. The technical solution of this embodiment is used to pre-determine the hotspot channel, and according to the pre-configured The hotspot time information of the hotspot channel records the live stream of the hotspot channel to the cache device. For the live stream of the non-hotspot channel, the probability of receiving a review request or a time-shift request is low, so it can be passed as shown in Figure 2 Ordinary storage devices for storage, such as low-speed cache devices such as mechanical hard disks, store live streams of hot content through high-speed cache devices, which can greatly reduce the cost of storage devices while ensuring the user experience of hot content as much as possible.

It is worth noting that the operations of step S110 and step S120 are for a hot spot time period of a hot spot channel. In actual use, the number of hot spot channels can be arbitrary, and each hot spot channel can also have multiple hot spot time information , respectively perform the above operations on each hotspot channel according to the time information of each hotspot, which will not be repeated in this embodiment.

In addition, referring to FIG. 3 , in one embodiment, before executing step S110 of the embodiment shown in FIG. 1 , it also includes but is not limited to the following steps:

Step S310, obtain the historical service bill of the channel to be evaluated, the historical service bill includes the service start time, service end time and popularity index of the content to be evaluated, wherein the historical service bill belongs to the live broadcast review service and/or live broadcast transfer business;

Step S320, when the heat index satisfies the preset condition, determine the content to be evaluated as a hot content, and determine the channel to be evaluated as a hot channel;

Step S330, determine hotspot time information according to the service start time and service end time, and associate the hotspot time information with the hotspot channel.

It should be noted that after completing each live broadcast playback or time-shifted live broadcast service, service data can be obtained through the hot content analysis module shown in Figure 2 to generate a service bill, and the service bill can be generated after a period of historical service bill collection. Hot content analysis, so as to determine the hot channel and the hot time information of the hot channel. For example, for IPTV, TV programs usually have a certain periodicity on a weekly basis, and the historical service bills of the past week can be collected. Analyze the content of each channel to determine the historical hot content. For example, according to the historical service call list, determine the service flow and clicks of the live content and other heat indicators, make statistics on the heat indicators, and count the service traffic or the number of clicks. To determine hot content, of course, other popularity evaluation methods may also be used, which is not limited in this embodiment.

It is worth noting that it needs to be explained that the cycle of obtaining historical service bills can be determined according to actual needs, and can also be updated according to the cycle. For example, if the cycle is determined to be one week, you can obtain a new week of historical service bills. , to perform a new hot content analysis to determine new hot channels and hot time information. Moreover, since hot channels and hot time information have a certain predictive component, it is also possible to set the time limit for collecting historical service bills, for example, to collect historical service bills for several weeks in the past, and discard them when a new week’s data is collected. The data of the earliest week, so as to realize the iteration of data update, to ensure that the hot channel and hot time information can have a good reference.

It should be noted that the preset conditions can be set according to actual needs. For example, the popularity index meets a certain threshold, or sorted according to the popularity index. Set default conditions, not limited here.

It should be noted that the content to be evaluated can be a live program that uses live playback or time-shifted live broadcast. When generating the service bill, you can add the content identifier corresponding to the live broadcast program, so that when analyzing hot content, you can Different content is distinguished through content identification, and the specific type of content identification can be selected according to actual needs.

In addition, referring to FIG. 4 , in one embodiment, step S320 of the embodiment shown in FIG. 3 also includes but is not limited to the following steps:

Step S410, determining the popularity value of the content to be evaluated according to the popularity index;

Step S420, when the popularity value satisfies the preset threshold, it is determined that the content to be evaluated is a hot content.

It should be noted that the heat index can include service traffic or counting times, and because IPTV is not aimed at specific users, but has a certain degree of universality, therefore, taking service traffic as an example, the service traffic is not limited to come from one Instead, it can come from the sum of the service traffic of all users who use live broadcast playback or live broadcast time-shifting services at the same time. Determining the popularity index based on the user's general behavior can make the predicted hot content more in line with the general user needs to provide users with a better experience.

It should be noted that for TV programs, there are usually peak periods and non-peak periods. When the business is at its peak, more service bills can be obtained during the business peak period, and there will be more corresponding hot content , if sorting is used to determine hot content, it is likely to determine multiple hot content during off-peak hours of business, but in fact there are not many users of these hot content, and caching will not greatly improve user experience. Therefore, By setting a preset threshold, when the popularity value of the content to be evaluated meets the preset threshold, it is determined as a hot content, which can effectively improve the reference value of the hot content.

It should be noted that the popularity value can be calculated according to the popularity index. For example, the popularity index includes service traffic and counting times. Different weights can be assigned to the service traffic and counting times, and the calculated values can be determined as the popularity value. The calculation may also be performed in other ways, and the specific calculation method of the heat value is not limited too much in this embodiment.

In addition, referring to FIG. 5 , in one embodiment, before performing step S330 of the embodiment shown in FIG. 3 , it also includes but is not limited to the following steps:

Step S510, determining at least two hot channels;

Step S520, generating a hot channel list based on at least two hot channels, wherein the hot channels in the hot channel list are sorted from large to small according to their popularity values, and the hot channel list records the channel IDs, hot time information and popularity values of the hot channels.

It should be noted that, for IPTV, there are many channels online at the same time, and this embodiment does not limit the number of hot channels. Through the hot content analysis module shown in Figure 2, several hot content can be determined. When the above If the hot content belongs to different channels, at least two hot channels can be determined. In order to configure hotspot time information for hotspot channels, the hotspot channel list can be fed back to the streaming media channel recording module through the hotspot content analysis module, and the channel identification, hotspot time information and heat value of the hotspot channel are recorded in the hotspot channel list, and streaming media The channel recording module determines the hot channel according to the channel identifier, and incorporates the hot time information into the channel recording management process of the hot channel, and records after the hot time starts.

It is worth noting that after a plurality of hot channels are determined, the ranking of the popularity values can be calculated according to unit time, and the hot channels are ranked according to the popularity values from high to low in the hot channel list.

It should be noted that the popularity value carried in the hot channel list can be applied in many ways. For example, in the process of recording multiple hot channels at the same time, when the cache device resources are less, it can be used according to the height of the popularity value. The allocation of resources is given priority to hot channels with high popularity values. The technicians in this embodiment have the motivation to adjust the use of popularity values according to actual needs, and no limitation is made here.

In addition, referring to FIG. 6, in one embodiment, step S120 of the embodiment shown in FIG. 1 also includes but is not limited to the following steps:

Step S610, determining the target directory of the cache device;

Step S620, write the live code stream into the target directory.

It should be noted that the real-time performance of historical playback content is low. Even if the conventional solution is used to record to a low-speed cache device and migrate to the cache device after heat analysis, it will not have a great impact on user experience. Therefore, In order to distinguish it from non-live content, a specific target directory can be configured in the cache device to save the live code stream recorded in this embodiment and to respond to the live broadcast playback request or live broadcast time-shifting request. For code stream, after detecting a live broadcast review request or a live broadcast time-shift request for hot content, the code stream is located and searched from the target directory, which can further reduce the response time.

In addition, in one embodiment, the CDN system also includes a low-speed cache device. Referring to FIG. 7, step S120 of the embodiment shown in FIG. 1 also includes but is not limited to the following steps:

Step S710, synchronously record the live code stream of the popular channel to the high-speed cache device and the low-speed cache device, so as to obtain the high-speed cache code stream stored in the high-speed cache device and the low-speed cache code stream stored in the low-speed cache device.

It should be noted that the low-speed cache device can be a common mechanical hard disk, etc., and its read rate is lower than that of the high-speed cache device, but it only needs to have an advantage over the high-speed cache device in terms of cost.

It is worth noting that the low-speed cache device can keep recording the live stream, and does not need to judge whether it is a hot content. The low-speed cache stream and the high-speed cache stream recorded in the same live content can be distinguished by the content identifier, as shown in Fig. The streaming media user service module shown in 2 can send the content identifier to the file storage server, and obtain the code stream from the high-speed cache device or the low-speed cache device according to the content identifier for playback.

It is worth noting that, unlike the conventional technology that uses low-speed cache equipment to record live streams and then moves them forward to high-speed cache equipment after heat analysis, the technical solution of this embodiment adopts the method of synchronous recording of hot content, and according to the time information of hot spots, the The live code stream of the hot channel is written into the high-speed cache device and the low-speed cache device at the same time, which saves the steps of migration and heat analysis. When reading the code stream, it can be read directly from the cache device, effectively improving the efficiency of the response , can respond to services in a shorter response time.

In addition, referring to FIG. 8 , the embodiment of the present application also provides a content playing method, which is applied to a CDN system. The CDN system includes a cache device. The content playing method includes but is not limited to steps S810, S820, and S830.

Step S810, acquiring the live broadcast service request, and determining the live broadcast content corresponding to the live broadcast service request.

It should be noted that since the live broadcast service request is for the live broadcast content, after obtaining the live broadcast service request, the content ID of the currently live broadcast content can be obtained directly, and the live broadcast content can be determined through the content ID, or the live content can be determined in other ways , not limited here.

It should be noted that the live broadcast service request can be a live broadcast review request or a live broadcast time-shift request. It may be an instruction to operate on live content, which is not limited in this embodiment.

Step S820, obtaining the target code stream corresponding to the live content from the cache code stream, wherein the cache code stream is recorded in the live code stream of the hot channel according to the hot time information, and the hot time information is associated with the hot channel.

It should be noted that, for the recording method of the cache code stream, reference may be made to the description of the embodiment shown in FIG. 1 , and details are not repeated here for the sake of brevity.

It is worth noting that since the cached code stream stored in the cache device can come from multiple hotspot channels, for example, live streams are recorded simultaneously from multiple hotspot channels within the same hotspot time period. In this case, you can pass the channel The ID or content ID obtains the target code stream from the cache device, and the specific matching method can be adjusted according to actual needs, and is not limited here.

Step S830, playing the target code stream.

It should be noted that since the cached stream is recorded according to the predetermined hotspot channel and hotspot time information, when the live service request is obtained, the target stream can be directly read and played. From receiving the live service request to playing only execution The operation of reading is eliminated, heat analysis and file migration operations are omitted, which can effectively improve the response efficiency of playing the target stream and improve user experience.

In addition, in one embodiment, the CDN system also includes a low-speed cache device, the low-speed cache device stores the low-speed cache code stream, and the low-speed cache code stream and the high-speed cache code stream are synchronously recorded in the live code stream of the hot channel, referring to FIG. Step S820 of the embodiment shown in 8 also includes but is not limited to the following steps:

Step S910, when it is determined that the live content is a hot content, obtain the target code stream from the cache code stream;

Step S920, when obtaining the target code stream from the high-speed cache code stream fails, obtain the target code stream from the low-speed cache code stream.

It should be noted that the technical solution of this embodiment is to improve the response efficiency for high-real-time services. Therefore, before obtaining the target code stream from the cache code stream, it can be judged whether the live content is a hot content, for example, each Hot channels are pre-configured with hot time information. When the time corresponding to the live content corresponds to the hot time information, it can be determined as a hot content, or other methods can be used to determine the live content as a hot content, which is not limited here.

It should be noted that after determining that the live content is a hot content, you can try to read the target stream from the cached stream first, and play it directly when the read is successful. , so the target code stream can be obtained from the low-speed cache code stream. It can be understood that, in the technical solution of this embodiment, the hot channel and hot time information are obtained according to the historical service bills. When special hot content appears in the live broadcast content, the channel may not be determined according to the historical service bills. The content within this time period is hot content. For example, for a TV channel, a hot program is temporarily inserted, but this program has not been broadcast before, so it may generate high popularity at present, and it is judged as hot. However, according to the historical service bills, the content in this period of time will not be determined as hot content, so it will not be recorded in the cache code stream. In this case, the corresponding content can be obtained from the low cache code stream. The target code stream to ensure that the target code stream can be obtained successfully.

It should be noted that the method for recording the low-speed cache code stream by the low-speed cache device may refer to the description of the embodiment shown in FIG.

In addition, referring to FIG. 10 , in one embodiment, step S820 of the embodiment shown in FIG. 8 also includes but is not limited to the following steps:

Step S1010, determine the target directory of the cache device, wherein the target directory stores the cache code stream;

Step S1020, acquiring the target code stream from the cached code stream stored in the target directory.

It should be noted that for the principle and method of setting the target directory on the cache device, reference may be made to the description of the embodiment shown in FIG. 6 , and details are not repeated here for the sake of brevity.

It should be noted that since the target directory is used to store the recording content of the live stream, the target directory can be directly located during the process of obtaining the target stream from the cached stream, thereby further improving the efficiency of obtaining the target stream .

In addition, referring to FIG. 11 , in one embodiment, after step S830 of the embodiment shown in FIG. 8 is executed, the following steps are also included but not limited to:

Step S1110, generate a service bill according to the live service request, the service bill includes the service start time, service end time and popularity index;

Step S1120, update the hot spot time information of the hot spot channel according to the service bill.

It should be noted that, after executing the live broadcast service request, those skilled in the art are familiar with how to obtain the service start time and service end time, and, referring to the description of the above embodiment, the heat index can be used for the service traffic obtained by the live broadcast content , the number of clicks, etc., those skilled in the art are also familiar with how to obtain the above parameters, and the generation process of the service bill is not limited here.

It should be noted that after the service bill is obtained, the service bill can be used as a historical service bill, and the streaming media user service module shown in Figure 2 sends it to the hot channel and hot time information of the hot content analysis module. The specific method can be Referring to the description of the embodiment shown in FIG. 3 , details are not repeated here for the sake of brevity.

In addition, in order to better illustrate the technical solution of this application, a specific example is proposed below, in combination with the CDN system architecture shown in Figure 2, referring to Figure 12, this example includes but is not limited to the following steps:

Step S1210, when the user initiates a service request to the streaming media server, after the streaming media user service module completes the service, it reports the service bill to the hot content analysis module, wherein the service bill includes service type, service content ID, service start and end time, service traffic and clicks;

Step S1220, the hotspot content analysis module determines the popularity value of the content of each channel according to the collected service call list, according to the service traffic and the number of clicks, and then sorts according to the popularity value per unit time to form a list of hot channels, wherein, hotspot The channel list includes hotspot channel ID, hotspot start time, hotspot end time, popularity value;

Step S1230, the hot content analysis module periodically pushes the hot channel list to the streaming media channel recording module;

Step S1240, the streaming media channel recording module includes the hot channel list into the management process of channel recording, when the system time reaches the hot spot start time, record the live code stream of the hot channel, and synchronously write the low-speed cache device and the target of the high-speed cache device Table of contents;

Step S1250, when the system time reaches the end time of the hotspot, the streaming media channel recording module stops writing the live code stream to the target directory of the cache device;

Step S1260, when receiving a service request for live broadcast time-shifting or live broadcast review, the streaming media user service module determines that the corresponding live content is a hot content;

Step S1270, when the streaming media user service module obtains the target code stream from the target directory of the cache device, play the target code stream obtained from the cache device, when the target code stream fails to be obtained from the target directory of the cache device, from The low-speed cache device obtains the target code stream and plays it.

In addition, referring to FIG. 13 , an embodiment of the present application also provides a CDN system. The CDN system 1300 includes: a memory 1310 , a processor 1320 , and a computer program stored in the memory 1310 and operable on the processor 1320 .

The processor 1320 and the memory 1310 may be connected through a bus or in other ways.

The non-transitory software programs and instructions required to realize the content recording method of the above-mentioned embodiment are stored in the memory 1310, and when executed by the processor 1320, the content recording method in the above-mentioned embodiment is executed, for example, executing the above-described Figure 1 Method step S110 to step S120 in, method step S310 to step S330 in Fig. 3, method step S410 to step S420 in Fig. 4, method step S510 to step S520 in Fig. 5, method step S610 to step S520 in Fig. 6 Step S620, method step S710 in FIG. 7, or execute the content playing method in the above embodiment, for example, execute method steps S810 to step S830 in FIG. 8 described above, and method steps S910 to step S920 in FIG. 9 , method step S1010 to step S1020 in FIG. 10 , and method step S1110 to step S1120 in FIG. 11 .

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place, or they may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, an embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by a processor or a controller, for example, by the above-mentioned Execution by a processor in the CDN system embodiment can cause the above-mentioned processor to execute the content recording method in the above-mentioned embodiment, for example, execute the method steps S110 to S120 in FIG. 1 and the method step S310 in FIG. 3 described above. to step S330, method step S410 to step S420 in FIG. 4, method step S510 to step S520 in FIG. 5, method step S610 to step S620 in FIG. 6, method step S710 in FIG. The content playing method in the example, for example, executes the method step S810 to step S830 in Fig. 8 described above, the method step S910 to step S920 in Fig. 9, the method step S1010 to step S1020 in Fig. 10, and the Method step S1110 to step S1120. Those skilled in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware and an appropriate combination thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit . Such software may reside on computer readable media, respectively, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

The embodiment of the present application includes: obtaining the hot spot time information pre-associated with the hot spot channel; according to the hot spot time information, recording the live stream of the hot spot channel to the cache device to obtain the cache stream. According to the technical solution of this embodiment, the live code stream to be recorded can be determined in advance, effectively speeding up the response time of high-real-time service review or time-shifted access, improving user experience, and effectively reducing the overall operating load of the server.

The above is a specific description of some implementations of the present application, but the present application is not limited to the above-mentioned embodiments. Those skilled in the art can also make various equivalent deformations or replacements without violating the spirit of the present application. Any modification or substitution is included within the scope defined by the claims of the present application.

Claims

A method for recording content, applied to a CDN system, where the CDN system includes a cache device, and the method includes:

Get hotspot time information pre-associated with hotspot channels;

According to the hotspot time information, the live stream of the hotspot channel is recorded to the cache device to obtain the cached stream.
The method according to claim 1, wherein, before the acquisition of the pre-associated hotspot time information of the hotspot channel, the method further comprises:

Obtain the historical service bill of the channel to be evaluated, the historical service bill includes the service start time, service end time and popularity index of the content to be evaluated, wherein the historical service bill belongs to the live broadcast review service and/or live broadcast time-shifting services;

When the popularity index satisfies the preset condition, determining the content to be evaluated as hot content, and determining the channel to be evaluated as the hot channel;

The hotspot time information is determined according to the service start time and the service end time, and the hotspot time information is associated with the hotspot channel.
The method according to claim 2, wherein, when the heat index satisfies a preset condition, determining the content to be evaluated as a hot content includes:

determining the popularity value of the content to be evaluated according to the popularity index;

When the popularity value satisfies a preset threshold, it is determined that the content to be evaluated is the hot content.
The method according to claim 3, wherein, after said and associating the hotspot time information with the hotspot channel, the method further comprises:

determining at least two of said hotspot channels;

A hot channel list is generated according to at least two hot channels, wherein the hot channels in the hot channel list are sorted according to the popularity value from large to small, and the hot channel list records channels of the hot channels ID, the hotspot time information and the popularity value.
The method according to claim 1, wherein the recording the live code stream of the hot channel to the cache device comprises:

determining a target directory for the cache device;

Write the live code stream into the target directory.
The method according to claim 1 or 5, wherein the CDN system further comprises a low-speed cache device, and recording the live code stream of the hot channel to the cache device to obtain the cache code stream includes:

synchronously recording the live code stream of the hot channel to the cache device and the low cache device, thereby obtaining the cache code stream stored in the cache device, and the cache code stream stored in the low cache device Low-speed cache code stream.
A method for playing content, applied to a CDN system, the CDN system including a cache device, the method comprising:

Obtain a live broadcast service request, and determine the live broadcast content corresponding to the live broadcast service request;

Obtain the target code stream corresponding to the live content from the cache code stream, wherein the cache code stream is recorded in the live code stream of the hot channel according to the hot spot time information, and the hot spot time information is related to the hot channel Associated;

Play the target code stream.
The method according to claim 7, wherein the CDN system further comprises a low-speed cache device, and the low-speed cache device stores a low-speed cache code stream, and the low-speed cache code stream and the cache code stream are synchronously recorded in the The live code stream of the hot channel, the acquisition of the target code stream corresponding to the live content from the cache code stream includes:

When it is determined that the live content is a hot content, obtain the target code stream from the cache code stream;

When acquiring the target code stream from the cache code stream fails, acquire the target code stream from the low cache code stream.
The method according to claim 7, wherein said obtaining the target code stream corresponding to the live content from the cached code stream comprises:

determining a target directory of the cache device, wherein the target directory stores the cache code stream;

The target code stream is acquired from the cache code stream stored in the target directory.
The method according to claim 7, wherein, after the playing of the target code stream, the method further comprises:

generating a service bill according to the live service request, the service bill including service start time, service end time and popularity index;

Updating the hotspot time information of the hotspot channel according to the service bill.
A CDN system, comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein, when the processor executes the computer program, any one of claims 1 to 6 is realized The content recording method, or realize the content playing method according to any one of claims 7-10.
A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the content recording method according to any one of claims 1 to 6, or to execute the content recording method according to any one of claims 7 to 6. The content playing method described in any one of 10.