WO2013040976A1

WO2013040976A1 - Content processing method and system for distributed service network

Info

Publication number: WO2013040976A1
Application number: PCT/CN2012/080580
Authority: WO
Inventors: 金伟毅; 王炜
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-09-22
Filing date: 2012-08-24
Publication date: 2013-03-28
Also published as: CN103023859A; CN103023859B

Abstract

Disclosed are a content processing method and system for a distributed service network (DSN). A content service application server distributes source content to a content server, and the content server preprocesses the source content according to a preprocessing policy. After completing the preprocessing, the content server registers the content to a resource location server. Through the solution of the present invention, the content server replaces the original content service application server to preprocess the source content, so as to reduce the processing performance overhead of the content service application server, and save the step of distributing by the content service application server a large amount of the content to the content server after preprocessing, thereby greatly reducing the network transmission bandwidth required by initial distribution of the content, and improving the system efficiency.

Description

Content processing method and system for distributed service network

The present invention relates to the field of networks and communications, and in particular, to a content processing method and system for a distributed service network (DSN). Background technique

DSN is a new generation of operational and manageable distributed core network architecture and functional architecture based on P2P (eer to peer) distributed technology. It can build a flexible and scalable business environment and provide content services for users. Such as streaming media, voice services such as multimedia phones and other services.

The DSN content-based business system can provide content-type services (such as on-demand, live broadcast, and subscription) for different types of end users, so the source content provided by the content provider is pre-processed before the content-based service is provided to the end user. For example, editing, transcoding, and sharding.

1 is an initial distribution process of a DSN content service system. The content service application server is responsible for pre-processing the source content and then distributing it to the content server. After the distribution is completed, the content server registers the content information with the resource location server, which includes the following steps. :

Step 101: The content service application server obtains the source content from the content provider, and then performs pre-processing on the source content to generate content metadata information, transcoding the content into different coding types, and content fragmentation.

Step 102: The content service application server distributes the content resource to the content server by pushing or pulling.

Step 103: After the content distribution is completed, the content server registers the content information with the resource location server. As can be seen from the foregoing process, the source content provided by the content provider needs to be pre-adapted, pre-segmented, etc., after being pre-processed by the content service application server. Redistributed to content server, content industry The application server may require a large performance overhead. At the same time, the same content will form a variety of different encoding types after transcoding. When the content is initially distributed, it may occupy a large amount of network transmission bandwidth and reduce the operating efficiency of the entire system. Summary of the invention

In view of this, the main purpose of the present invention is to provide a DSN content processing method and system, which can reduce the processing performance overhead of the content service application server, and save a large amount of network transmission bandwidth required for initial content distribution, thereby improving system efficiency.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

The present invention provides a DSN content processing method, the method comprising:

The content service application server distributes the source content to the content server, and the content server preprocesses the source content according to the preprocessing policy;

After the pre-processing is completed, the content server performs content registration with the resource location server. In the above solution, the content service application server distributes the source content to the content server by: the content service application server distributes the source content to the content server by means of pushing or pulling.

In the above solution, the source content is video content, and/or audio content, and/or image content. In the above solution, the pre-processing policy is obtained by: the content service application server, after distributing the source content to the content server, carrying the pre-processing policy in an execution content processing command sent to the content server; or After receiving the source content distributed by the content service application server, the content server acquires the pre-processing policy from the content application service server.

In the foregoing solution, the pre-processing policy includes at least one of the following: a video adaptation policy, an audio adaptation policy, an image adaptation policy, and a content fragmentation policy.

In the above solution, the method further includes: after the content registration, the user terminal sends a content request to the content service application server or the resource location server, and the content service application server or the resource location server does not find a match according to the user terminal capability and the network performance. Content At the time of source, the user terminal capability and network performance of the user terminal are transmitted to the content server related to the requested content, and the content server adapts the content in real time according to the user terminal capability and network performance.

The content processing system of the DSN provided by the present invention includes: a content service application server, a content server, and a resource location server; wherein

a content business application server for distributing source content to a content server;

a content server, configured to perform pre-processing on the source content according to a pre-processing policy; after the pre-processing is completed, the content server performs content registration on the resource location server;

a resource locating server, configured to complete content registration of the content server; the content processing method according to claim 1.

In the above solution, the content service application server is further configured to: after the source content is distributed to the content server, carry the pre-processing policy in an execution content processing command sent to the content server.

In the above solution, the content server is further configured to: after receiving the source content distributed by the content service application server, send a pre-processing policy acquisition request to the content application service server; correspondingly, the content service application server, After receiving the pre-processing policy acquisition request, returning a corresponding pre-processing policy to the content server.

In the foregoing solution, the system further includes: a user terminal, configured to send a content request to a content service application server or a resource location server;

Correspondingly, the content service application server or the resource location server is further configured to send the user terminal capability and the network performance of the user terminal to the requested content when the matched content resource is not found according to the user terminal capability and the network performance. Content server

The content server is further configured to adapt content in real time according to user terminal capabilities and network performance.

The present invention provides a content processing method and system for a DSN, where a content service application server distributes source content to a content server, and the content server feeds the source content according to a pre-processing policy. After the pre-processing is completed, the content server performs content registration with the resource location server; thus, the content server assumes the pre-processing work of the original content service application server on the source content, reduces the processing performance overhead of the content service application server, and saves After the content service application server distributes a large amount of content to the content server after preprocessing, the network transmission bandwidth required for initial distribution of the content is saved, and the efficiency of the system is improved. DRAWINGS

1 is a schematic diagram of an initial content distribution process in a DSN content service in the prior art; FIG. 2 is a schematic flowchart of a DSN content processing method according to the present invention;

3 is a schematic structural diagram of a content processing system for implementing a DSN according to the present invention;

4 is a schematic flow chart of a method according to Embodiment 1 of the present invention;

FIG. 5 is a schematic flowchart of a method according to Embodiment 2 of the present invention; FIG.

6 is a schematic flowchart of a method according to Embodiment 3 of the present invention;

FIG. 7 is a schematic flowchart of a method according to Embodiment 4 of the present invention. detailed description

The basic idea of the present invention is: the content service application server distributes the source content to the content server, and the content server preprocesses the source content according to the pre-processing policy; after the pre-processing is completed, the content server performs content registration with the resource location server.

The invention will be further described in detail below with reference to the drawings and specific embodiments.

The present invention implements a DSN content processing method. As shown in FIG. 2, the method includes the following steps:

Step 201: The content service application server distributes the source content to the content server;

Specifically, the content service application server distributes the source content with low overhead required for preprocessing to the content server by means of pushing or pulling;

The source content required for the preprocessing is small, and the requirement for format adjustment is not high, such as The resolution adjustment requirement is not high, and the source content that is easier to handle transcoding is processed; for example: There is no special requirement for definition, and a large number of advertisements or user advertisements (UGC) that can be adapted to the H.263 code adaptation of the network transmission low bit rate can be adopted. Video and audio, or, there is no special requirement for image resolution, and advertisements that are more suitable for lossy compression coding adaptation of network transmission can be used;

The source content may be video content, and/or audio content, and/or image content, etc.; the content server has a plurality of content servers that are distributed.

Step 202: The content server performs pre-processing on the source content according to the pre-processing policy. In this step, after the content service application server distributes the source content to the content server, the content processing command is sent to the content server. The pre-processing policy is carried in the content server; or the content server obtains the pre-processing policy from the content application service server after receiving the source content distributed by the content service application server;

The preprocessing strategy includes at least one of the following: a video adaptation policy, an audio adaptation policy, an image adaptation policy, a content fragmentation policy, and the like;

The pre-processing includes content adaptation and content fragmentation; the content adaptation may be video adaptation, audio adaptation, image adaptation, etc.;

In this step, the preprocessing of the same source content between different content servers ensures consistency through the same pre-processing strategy.

Step 203: After the pre-processing is completed, the content server performs content registration to the resource location server.

In this step, the specific method for registering the content is prior art, and details are not described herein. Further, after the content registration, the method further includes: the user terminal sends a content request to the content service application server or the resource location server, and the content service application server or the resource location server does not find the matched content according to the user terminal capability and the network performance. When the resource is used, the user terminal capability and network performance of the user terminal are sent to the content server related to the requested content, and the content server adapts the content in real time according to the user terminal capability and the network performance. In order to implement the above method, the present invention further provides a DSN content processing system. As shown in FIG. 3, the system includes: a content service application server 31, a content server 32, and a resource location server 33;

a content business application server 31, configured to distribute the source content to the content server 32;

The content server 32 is configured to preprocess the source content according to a pre-processing policy; after the pre-processing is completed, the content server 32 performs content registration with the resource location server 33;

The resource location server 33 is configured to complete content registration of the content server 32.

There are multiple content servers 32, which are distributed content servers;

The content service application server 31 is further configured to: after the source content is distributed to the content server 32, carry the pre-processing policy in an execution content processing command sent to the content server 32;

The content server 32 is further configured to send a pre-processing policy acquisition request to the content application service server 31 after receiving the source content distributed by the content service application server 31;

Correspondingly, the content service application server 31 is further configured to: after receiving the pre-processing policy obtaining request, return a corresponding pre-processing policy to the content server 32;

The system further includes: a user terminal 34, configured to send a content request to the content service application server 31 or the resource location server 33;

Correspondingly, the content service application server 31 or the resource location server 33 is further configured to send the user terminal capability and network performance of the user terminal 34 to the content resource when the matching content resource is not found according to the user terminal capability and the network performance. Requesting content related content server 32;

The content server 32 is further configured to adapt the content in real time according to user terminal capabilities and network performance. Embodiment 1 In this embodiment, after the content service application server distributes the source content to the content server, the content server is notified to perform pre-processing, and the pre-processing policy is sent to the content server. This embodiment implements a content processing method of the DSN. As shown in FIG. 4, the method includes the following steps:

Step 301: The content service application server distributes the source content such as video, and/or audio, and/or image to the content server by means of pushing or pulling;

Step 302: After distributing the source content to the content server, the content service application server sends an execution content processing command to the content server, and carries a pre-processing policy in executing the content processing command;

Step 303: The content server performs adaptation and fragmentation processing on the obtained source content according to the pre-processing policy.

Step 304: After the pre-processing is completed, the content server performs content registration to the resource location server, and saves the adaptation information of the content.

Embodiment 2

In this embodiment, after the content service application server distributes the source content to the content server, the content server acquires a pre-processing policy from the content service application server, and then performs pre-processing. This embodiment implements a content processing method of the DSN. As shown in FIG. 5, the method includes the following steps: Step 401: The content service application server uses video, and/or audio, and/or by means of push or pull. Source content such as images is distributed to the content server;

Step 402: After receiving the source content distributed by the content service application server, the content server sends a pre-processing policy acquisition request to the content service application server.

Step 403: After receiving the pre-processing policy acquisition request, the content service application server returns a corresponding pre-processing policy to the content server.

Step 404: The content server performs adaptation and fragmentation processing on the obtained source content according to the pre-processing policy.

Step 405: After the pre-processing is completed, the content server performs content annotation to the resource location server. Book, and save the adaptation information of the content.

It can be seen from the above two embodiments that content pre-processing by the distributed content server reduces the processing overhead (mainly adaptation) performance of the content service application server, and also saves a large amount of network required for initial content distribution. The transmission bandwidth increases the efficiency of the system.

Embodiment 3

In this embodiment, the process of pre-processing the source content by the content server is the same as that of the first embodiment or the second embodiment. When the user terminal requests the content, the content service application server or the resource location server does not find the capability and network with the user terminal. When the content resource matches the content, the content server is notified to perform content adaptation, and the matched content resource is generated and sent to the user terminal. The specific process of the real-time adaptation of the content server in this embodiment is as shown in FIG. 6, and includes the following steps: Step 501: The user terminal sends a content request to the content service application server or the resource location server.

In this step, the content request carries the user terminal capability and network performance of the user terminal. Step 502: The content service application server or the resource location server performs service authentication and authorization on the user terminal.

Step 503: When the content service application server or the resource location server does not find the matched content resource according to the user terminal capability and the network performance, the user terminal capability and the network performance of the user terminal are sent to the content server related to the requested content, and the notification center is notified. The content server performs real-time content adaptation;

Step 504: The content server adapts the content in real time according to the user terminal capability and the network performance, and generates matching content resources.

Specifically, the content server adopts a suitable adaptation format for the video content according to the user terminal capability and the network performance, and adjusts parameters such as resolution, code rate, and frame rate for real-time adaptation; for the audio content, adopts an appropriate adaptation format, And adjust the parameters such as bit rate and frame rate for real-time adaptation; for image content, use appropriate adaptation format, adjust resolution and other parameters for real-time adaptation, Generate content resources that match user terminal capabilities and network performance.

Step 505: The content service application server or the resource location server returns content server list information that is adapted to the content in real time to the user terminal.

Step 506: The user terminal selects a content server according to the content server list information, and sends a content acquisition request.

In this step, the selecting a content server may be selecting any one of the servers.

Step 507: The content server returns a confirmation response;

Step 508: The content server sends the matched content resource generated by the adaptation to the user terminal. Embodiment 4

In this embodiment, the process of pre-processing the source content by the content server is the same as that of the first embodiment or the second embodiment. When the user terminal requests the content, the content service application server or the resource location server does not find the capability and network with the user terminal. When the performance matching content resource is used, the content server is notified to wait for the content adaptation. When the user requests the content download, the content adaptation is performed to generate a matching content resource, which is sent to the user terminal. The specific process of real-time adaptation of the content server in this embodiment is as shown in FIG. 7, and includes the following steps:

Steps 601 to 602 are the same as steps 501 to 502 in the third embodiment.

Step 603: When the content service application server or the resource location server does not find the matched content resource according to the user terminal capability and the network performance, the user terminal capability and the network performance of the user terminal are sent to the content server related to the requested content, and notified. The content server associated with the requested content waits for the content to be adapted in real time;

Step 604: The content service application server or the resource location service returns content server list information related to the requested content to the user terminal.

Step 605: The user terminal selects a content server according to the content server list information, and sends a content acquisition request.

In this step, the selecting a content server may be selecting any one of the servers. Step 606: The content server returns a confirmation response.

Step 607: The content server adapts the content in real time according to the user terminal capability and the network performance, and generates matching content resources.

Step 608: The content server sends the matched content resource generated by the adaptation to the user terminal. It can be seen from the foregoing third and fourth embodiments that real-time content adaptation by the content server can effectively reduce the adaptation performance overhead of the content service application server and improve the performance of the system content processing.

In summary, the content server of the present invention assumes the preprocessing work of the original content service application server on the source content, reduces the processing performance overhead of the content service application server, and eliminates the content service application server to distribute a large amount of content after preprocessing. The steps to the content server greatly save the network transmission bandwidth required for the initial distribution of the content, and improve the efficiency of the system.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A content processing method for a distributed service network (DSN), wherein the method includes: a content service application server distributing source content to a content server, wherein the content server preprocesses the source content according to a preprocessing policy ;

After the pre-processing is completed, the content server performs content registration with the resource location server.

The content processing method according to claim 1, wherein the content service application server distributes the source content to the content server by: the content service application server distributes the source content to the content server by means of pushing or pulling.

The content processing method according to claim 2, wherein the source content is video content, and/or audio content, and/or image content.

The content processing method according to claim 1, wherein the obtaining of the pre-processing policy is: executing content sent by the content service application server to the content server after distributing the source content to the content server The processing command carries the pre-processing policy; or, after receiving the source content distributed by the content service application server, the content server acquires the pre-processing policy from the content application service server.

The content processing method according to claim 4, wherein the pre-processing policy comprises at least one of the following: a video adaptation policy, an audio adaptation policy, an image adaptation policy, and a content fragmentation policy.

The content processing method according to claim 1, wherein the method further comprises: after the content registration, the user terminal sends a content request to the content service application server or the resource location server, where the content service application server or the resource location server is When the user terminal capability and the network performance do not find a matching content resource, the user terminal capability and the network performance of the user terminal are sent to the content server related to the requested content, and the content server adapts the content to the content according to the user terminal capability and the network performance. Match.

7. A DSN content processing system, wherein the system comprises: a content service application service Server, content server, resource location server;

The content processing system according to claim 7, wherein the content service application server is further configured to: carry the source content in the execution content processing command sent to the content server after distributing the source content to the content server Preprocessing strategy.

The content processing system according to claim 7, wherein the content server is further configured to: after receiving the source content distributed by the content service application server, send a pre-processing policy acquisition request to the content application service server;

Correspondingly, the content service application server is further configured to: after receiving the pre-processing policy acquisition request, return a corresponding pre-processing policy to the content server.

The content processing system according to claim 7, wherein the system further comprises: a user terminal, configured to send a content request to a content service application server or a resource location server; correspondingly, the content service application server or resource location The server is further configured to send the user terminal capability and the network performance of the user terminal to the content server related to the requested content when the matching content resource is not found according to the user terminal capability and the network performance;