CN112203118B - Multimedia resource distribution method, device, electronic device and storage medium - Google Patents

Multimedia resource distribution method, device, electronic device and storage medium Download PDF

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Publication number
CN112203118B
CN112203118B CN202011398546.9A CN202011398546A CN112203118B CN 112203118 B CN112203118 B CN 112203118B CN 202011398546 A CN202011398546 A CN 202011398546A CN 112203118 B CN112203118 B CN 112203118B
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multimedia resource
encryption
multimedia
transcoding
parameters
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CN112203118A (en
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李良敏
唐勇
赵玉红
郑峰
谷成成
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Particle Culture Technology Group Hangzhou Co ltd
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Particle Culture Technology Group Hangzhou Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440236—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by media transcoding, e.g. video is transformed into a slideshow of still pictures, audio is converted into text
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

The application relates to a multimedia resource distribution method, a multimedia resource distribution device, an electronic device and a storage medium, wherein the multimedia resource distribution method comprises the following steps: acquiring a first multimedia resource provided by a provider; according to the encryption parameters and the transcoding parameters determined by the provider, the first multimedia resource is encrypted and transcoded to obtain a second multimedia resource; distributing the second multimedia resource to a content distribution network, and acquiring a playing address of the second multimedia resource in the content distribution network; storing the encryption parameters and the playing address; and sending the encryption parameter and the playing address to the requester under the condition that the requester requests to play the second multimedia resource. By the method and the device, the problems that in the related art, the encryption and decryption templates for multimedia resource distribution and configuration are single, and different multimedia resources provided by different providers cannot be transcoded, produced and played normally are solved.

Description

Multimedia resource distribution method, device, electronic device and storage medium
Technical Field
The present application relates to the field of computer technologies, and in particular, to a multimedia resource distribution method, apparatus, electronic apparatus, and storage medium.
Background
With the rapid development of internet technology, videos are flooded in mass life, and with the business development of enterprises, various apps and terminal products related to video playing gradually fall to the ground, so that the problems of video piracy and copyright infringement are increasingly highlighted, and meanwhile, the content distribution network service load is caused. In the related technology, in order to solve the problem of multimedia resource playing infringement, an encryption and decryption technology is adopted, and due to the fact that the technical scheme of multimedia resource encryption and decryption adopted in the related technology is complex and the configured encryption and decryption template is single, different multimedia resources provided by different providers cannot be transcoded, produced and played normally.
At present, no effective solution is provided for the problems that in the related art, an encryption/decryption template for multimedia resource distribution configuration is single, and different multimedia resources provided by different providers cannot be transcoded, produced and played normally.
Disclosure of Invention
The embodiment of the application provides a multimedia resource distribution method, a multimedia resource distribution device, an electronic device and a storage medium, and aims to at least solve the problems that in the related art, an encryption and decryption template for multimedia resource distribution configuration is single, and different multimedia resources provided by different providers cannot be transcoded and produced and played normally.
In a first aspect, an embodiment of the present application provides a multimedia resource distribution method, including:
acquiring a first multimedia resource provided by a provider;
according to the encryption parameters and the transcoding parameters determined by the provider, the first multimedia resource is encrypted and transcoded to obtain a second multimedia resource;
distributing the second multimedia resource to a content distribution network, and acquiring a playing address of the second multimedia resource in the content distribution network;
storing the encryption parameter and the playing address;
and under the condition that a requester requests to play the second multimedia resource, sending the encryption parameter and the playing address to the requester.
In some embodiments, the encrypting and transcoding the first multimedia asset according to the encryption parameter and the transcoding parameter determined by the provider to obtain the second multimedia asset includes:
acquiring an encryption transcoding template provided by the provider, wherein the encryption transcoding template comprises the encryption parameters and the transcoding parameters; extracting the encryption parameters and the transcoding parameters from the encryption transcoding template; and determining a transcoder according to the type of the first multimedia resource, and performing encryption processing and transcoding processing on the first multimedia resource through the transcoder according to a preset encryption mode and a preset transcoding format to obtain the second multimedia resource, wherein the preset encryption mode is determined according to the encryption parameters, and the preset transcoding format is determined according to the transcoding parameters.
In some of these embodiments, determining a transcoder based on the type of the first multimedia resource comprises: determining a type of the first multimedia asset, wherein the first multimedia asset comprises one of the following types of multimedia assets: on-demand multimedia resources, live multimedia resources; determining that the transcoder comprises an offline transcoder if it is determined that the first multimedia resource comprises the on-demand multimedia resource; determining that the transcoder comprises an online transcoder if it is determined that the first multimedia asset comprises the live-type multimedia asset.
In some of these embodiments, obtaining a first multimedia asset provided by a provider comprises: receiving the first multimedia resource injected by the provider through a content distribution system, wherein the first multimedia resource comprises an on-demand multimedia resource; and/or
And receiving the first multimedia resource accessed by the provider through the created live channel, wherein the first multimedia resource comprises a live type multimedia resource.
In some of these embodiments, storing the encryption parameter and the play address comprises: transmitting the encryption parameter and the play address to a preset service for receiving the first multimedia resource, and storing the encryption parameter and the play address, wherein the preset service comprises one of the following: the content distribution system and the live channel.
In some of these embodiments, sending the encryption parameter and the play address to the requestor comprises: and sending the encryption parameter and the playing address to the requester through an EPG interface.
In some embodiments, after sending the encryption parameter and the play address to the requestor, the method includes: the requester reads the corresponding second multimedia resource from the content distribution network according to the playing address; the requester decrypts the second multimedia resource according to a decryption algorithm corresponding to the encryption parameter to obtain a third multimedia resource; and the requester checks the third multimedia resource and plays the third multimedia resource under the condition that the checking is passed.
In some embodiments, the encryption parameter comprises a content identification code and a user identification code, and the verifying the third multimedia resource by the requester comprises: the requester extracts the content identification code and the user identification code, and decrypts the content identification code and the user identification code according to the decryption algorithm to obtain a first verification secret key; and the requesting party matches the first checking secret key with a second checking secret key carried in the third multimedia resource, and determines a checking result according to a matching result.
In some embodiments, before the requestor reads the corresponding second multimedia resource from the content distribution network according to the play address, the method includes: the requesting party receives response information which is sent by a preset service management system and responds to the authentication request, wherein the response information comprises an authentication result; under the condition that the authentication result includes successful authentication, the requesting party reads the corresponding second multimedia resource from the content distribution network according to the playing address; and receiving the preset configured multimedia resources under the condition that the authentication result comprises authentication failure.
In a second aspect, an embodiment of the present application provides a multimedia resource distribution apparatus, including:
the acquisition module is used for acquiring a first multimedia resource provided by a provider;
the encryption module is used for carrying out encryption processing and transcoding processing on the first multimedia resource according to the encryption parameter and the transcoding parameter determined by the provider so as to obtain a second multimedia resource;
the distribution module is used for distributing the second multimedia resource to a content distribution network and acquiring a playing address of the second multimedia resource in the content distribution network;
the storage module is used for storing the encryption parameters and the playing addresses;
and the transmission module is used for sending the encryption parameter and the playing address to the requester under the condition that the requester requests to play the second multimedia resource.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor, when executing the computer program, implements the multimedia resource distribution method according to the first aspect.
In a fourth aspect, the present application provides a storage medium, on which a computer program is stored, which when executed by a processor implements the multimedia resource distribution method as described in the first aspect above.
Compared with the related art, the multimedia resource distribution method, the multimedia resource distribution device, the electronic device and the storage medium provided by the embodiment of the application acquire the first multimedia resource provided by the provider; according to the encryption parameters and the transcoding parameters determined by the provider, the first multimedia resource is encrypted and transcoded to obtain a second multimedia resource; distributing the second multimedia resource to a content distribution network, and acquiring a playing address of the second multimedia resource in the content distribution network; storing the encryption parameters and the playing address; the encryption parameters and the playing addresses are sent to the requester under the condition that the requester requests to play the second multimedia resource, so that the problems that in the related technology, the encryption and decryption templates for multimedia resource distribution and configuration are single, and different multimedia resources provided by different providers cannot be transcoded and produced and played normally are solved, and different encryption templates are configured according to different providers, so that the beneficial effects that the encrypted multimedia resources and the unencrypted media resources can be transcoded and produced and played normally are achieved.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a block diagram of a hardware structure of a terminal of a multimedia resource distribution method according to an embodiment of the present application;
FIG. 2 is a flow chart of a multimedia resource distribution method according to an embodiment of the present application;
FIG. 3 is a flow chart of a multimedia asset distribution method according to the preferred embodiment of the present application;
FIG. 4 is a flow chart of on-demand authenticated playback according to the preferred embodiment of the present application;
FIG. 5 is another flow chart of a multimedia asset distribution method according to the preferred embodiment of the present application;
fig. 6 is a flow chart of live authentication play according to the preferred embodiment of the present application;
fig. 7 is a block diagram of a multimedia resource distribution apparatus according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Reference herein to "a plurality" means greater than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.
Before the embodiments of the present application are explained, the related art related to the embodiments of the present application is explained as follows:
the Content Management System (CMS) is a software System located between the front end (WEB server) of WEB and the back end office System or process (Content creation, editing), and the Content creator, editor, publisher use the Content Management System to submit, modify, approve, and publish the Content, where the "Content" may include all information that you want to publish to Internet, Intranet, and Extranet websites, such as files, tables, pictures, data in database, and even video.
The Content Distribution System (CDS) is a service that allows Internet clients in various places to access the Content cached in the local cache server when accessing these websites through a computer, thereby shortening the request response time and network delay and reducing the load of the website server.
A Content Delivery Network (CDN) is an intelligent virtual Network built on the basis of the existing Network, and a user can obtain required Content nearby by using functional modules of load balancing, Content Delivery, scheduling and the like of a central platform by means of edge servers deployed in various places, so that Network congestion is reduced, and the access response speed and hit rate of the user are increased.
Digital Rights Management (DRM) is a Digital Rights Management technology that enhances the protection of the copyright of digitized audio and video program content, documents, and electronic books.
The multimedia resource distribution method and the embodiment thereof provided by the embodiment can be executed in a terminal, a computer or a similar operation device. Taking the operation on the terminal as an example, fig. 1 is a hardware structure block diagram of the terminal of the multimedia resource distribution method according to the embodiment of the present invention. As shown in fig. 1, the terminal 10 may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the terminal. For example, the terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used for storing computer programs, for example, software programs and modules of application software, such as a computer program of the multimedia resource distribution method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, thereby implementing the above-mentioned methods. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
The present embodiment provides a multimedia resource distribution method, and fig. 2 is a flowchart of a multimedia resource distribution method according to an embodiment of the present application, and as shown in fig. 2, the flowchart includes the following steps:
in step S201, a first multimedia resource provided by a provider is acquired.
In this embodiment, the multimedia resource distribution method is executed on a multimedia resource playing platform, which provides services for a plurality of multimedia resource tenants, encrypts and transcodes content provided by the multimedia resource tenants, and plays the multimedia resource through a player associated with the platform. In this embodiment, the provider includes a multimedia asset tenant and provides a corresponding first multimedia asset.
In this embodiment, the first multimedia asset includes, but is not limited to, video and audio, and meanwhile, the first multimedia asset is divided into: on-demand type, live type; in this embodiment, the on-demand type first multimedia resource is provided by a provider in a manner of being pulled by an Assets Management System (AMS) and then being injected into a Content Distribution System (CDS), and the LIVE type first multimedia resource is provided by a provider in a manner of creating a LIVE channel (LIVE) and directly accessing a LIVE type multimedia resource.
Step S202, according to the encryption parameters and the transcoding parameters determined by the provider, the first multimedia resource is encrypted and transcoded to obtain a second multimedia resource.
In this embodiment, while providing the first multimedia resource, the provider also provides an encryption parameter for encrypting the first multimedia resource and a transcoding parameter for transcoding the first multimedia resource, and selects different encryption transcoding templates for multimedia resources of different playing types, that is, provides different encryption parameters and transcoding parameters; in this embodiment, a main body for performing encryption transcoding on the first multimedia resource is a source station of a platform for playing the multimedia resource, and the source station corresponds to a server; in this embodiment, the encryption parameter is associated with an encryption mode or an encryption algorithm for encrypting the first multimedia resource, the transcoding parameter is associated with a transcoding format for transcoding the first multimedia resource into a code stream of which format, and after the encryption parameter and the transcoding parameter are determined, the source station encrypts the first multimedia resource based on the associated encryption mode or encryption algorithm and transcodes the first multimedia resource based on the transcoding format by calling a matched transcoder, so as to generate the second multimedia resource in the preset format.
It should be noted that, in the process of generating the second multimedia resource by encrypting and transcoding the first multimedia resource, the corresponding verification key is generated based on the encryption algorithm, so that during decoding, whether the corresponding second multimedia resource is based on the multimedia resource generated by the first multimedia resource can be verified by comparing the generated decoding verification key with the decoding verification key generated by decoding, and whether the corresponding multimedia resource is stolen, tampered and lost can be verified.
Step S203, the second multimedia resource is distributed to the content distribution network, and the playing address of the second multimedia resource in the content distribution network is obtained.
In this embodiment, after the source station generates the second multimedia resource, the content is distributed to each distributed CDN node through a Content Distribution Network (CDN), so that fast access can be achieved when the second multimedia data needs to be accessed; meanwhile, in order to access the corresponding multimedia resource during access, when the second multimedia resource is distributed, it is necessary to determine a playing address of the second multimedia resource corresponding to a storage address of the second multimedia resource in a Content Distribution Network (CDN).
It should be noted that, when the first multimedia resource is a live multimedia resource, the obtained play address of the second multimedia resource in the content distribution network corresponds to a channel address of a live channel.
Step S204, storing the encryption parameters and the playing addresses.
In the present embodiment, the encryption parameters include at least a content identification code (ContentID) and a user identification code (CustomerID).
In this embodiment, the source station distributes the second multimedia resource to the Content Distribution Network (CDN), and in the case of successful distribution, the Content Distribution Network (CDN) feeds back a play address to the source station, and the source station feeds back the play address to the Content Distribution System (CDS) or the LIVE channel (LIVE), where the Content Distribution System (CDS) or the LIVE channel (LIVE) records an encryption parameter and the play address, and meanwhile, the Content Distribution System (CDS) records that the media resource of the on-demand type second multimedia resource is encrypted, and the LIVE channel (LIVE) records that the channel of the LIVE type second multimedia resource is encrypted.
Step S205, sending the encryption parameter and the play address to the requesting party when the requesting party requests to play the second multimedia resource.
In this embodiment, after a Content Distribution System (CDS) or a LIVE channel (LIVE) records an encryption parameter and a play address, the encryption parameter and the play address are sent to a requesting party for decoding and playing.
In this embodiment, the requesting party includes a terminal having a terminal APK and a player, and of course, the request for playing instruction is generated by a user operating the terminal performing corresponding operations.
Through the above steps S201 to S205, by acquiring a first multimedia resource provided by a provider; according to the encryption parameters and the transcoding parameters determined by the provider, the first multimedia resource is encrypted and transcoded to obtain a second multimedia resource; distributing the second multimedia resource to a content distribution network, and acquiring a playing address of the second multimedia resource in the content distribution network; storing the encryption parameters and the playing address; the encryption parameters and the playing addresses are sent to the requester under the condition that the requester requests to play the second multimedia resource, so that the problems that in the related technology, the encryption and decryption templates for multimedia resource distribution and configuration are single, and different multimedia resources provided by different providers cannot be transcoded and produced and played normally are solved, and different encryption templates are configured according to different providers, so that the beneficial effects that the encrypted multimedia resources and the unencrypted media resources can be transcoded and produced and played normally are achieved.
It should be noted that, in this embodiment, the source station is used to encrypt the first multimedia resource during transcoding production of the first multimedia resource, and at the same time, the content distribution system or the live channel receives the encryption parameter and the play address fed back by the source station and provides a requester of the play request, thereby completing the transcoding distribution of the encrypted multimedia resource.
In some embodiments, the encrypting and transcoding the first multimedia asset according to the encryption parameter and the transcoding parameter determined by the provider to obtain the second multimedia asset includes the following steps:
step 1, an encryption transcoding template provided by a provider is obtained, wherein the encryption transcoding template comprises encryption parameters and transcoding parameters.
In this embodiment, the related parameters for performing the encryption processing and the transcoding processing on the first multimedia resource are determined according to the encryption transcoding template selected by the provider, and the provider provides the first multimedia resource synchronously, for example: for a first multimedia asset on demand, after a provider injects the first multimedia asset from a media Asset Management System (AMS) into a Content Distribution System (CDS), the provider selects an encryption transcoding template on the Content Distribution System (CDS) and injects the encryption transcoding template and the first multimedia asset together into a source station.
And 2, extracting encryption parameters and transcoding parameters from the encryption transcoding template.
And step 3, determining a transcoder according to the type of the first multimedia resource, and encrypting and transcoding the first multimedia resource through the transcoder according to a preset encryption mode and a preset transcoding format to obtain a second multimedia resource, wherein the preset encryption mode is determined according to the encryption parameters, and the preset transcoding format is determined according to the transcoding parameters.
In this embodiment, when the first multimedia resource is the on-demand first multimedia resource, the corresponding transcoder is an offline transcoder, and when the first multimedia resource is the live first multimedia resource, the corresponding transcoder is an online transcoder.
In this embodiment, the transcoder encrypts the first multimedia asset during the transcoding production of the first multimedia asset.
Acquiring an encryption transcoding template provided by a provider through the steps; extracting encryption parameters and transcoding parameters from the encryption transcoding template; and determining a transcoder according to the type of the first multimedia resource, and encrypting and transcoding the first multimedia resource through the transcoder according to a preset encryption mode and a preset transcoding format to obtain a second multimedia resource, so as to realize encryption and transcoding of the first multimedia resource by providing different encryption and transcoding templates according to a provider of the first multimedia resource.
In some of these embodiments, determining the transcoder based on the type of the first multimedia asset comprises the steps of:
step 1, determining the type of a first multimedia resource, wherein the first multimedia resource comprises one of the following types of multimedia resources: on-demand multimedia resources and live multimedia resources.
And 2, under the condition that the first multimedia resource comprises the on-demand multimedia resource, determining that the transcoder comprises the off-line transcoder.
And 3, under the condition that the first multimedia resource comprises the live type multimedia resource, determining that the transcoder comprises the online transcoder.
By determining the type of the first multimedia resource and determining the transcoder according to the type of the first multimedia resource in the steps, different transcoders and encryption transcoding templates can be configured according to different multimedia resources provided by different providers.
In some of these embodiments, obtaining a first multimedia asset provided by a provider comprises the steps of: receiving the first multimedia resource injected by the provider through a content distribution system, wherein the first multimedia resource comprises an on-demand multimedia resource; and/or
And receiving the first multimedia resource accessed by the provider through the created live channel, wherein the first multimedia resource comprises a live type multimedia resource.
In this embodiment, the first multimedia asset is divided into: on-demand type, live type; the on-demand type first multimedia resource is provided by a provider in a manner of being pulled on a media Asset Management System (AMS) and then being injected into a Content Distribution System (CDS), and the LIVE type first multimedia resource is provided by a provider in a manner of creating a LIVE channel (LIVE) and directly accessing the LIVE type multimedia resource.
In some embodiments, storing the encryption parameters and the play address comprises: transmitting the encryption parameter and the playing address to a preset service for receiving the first multimedia resource, and storing the encryption parameter and the playing address, wherein the preset service comprises one of the following services: a content distribution system, a live channel.
In this embodiment, a preset service for receiving a first multimedia resource corresponds to a Content distribution System and a LIVE channel, a source station distributes a second multimedia resource to a Content Distribution Network (CDN), and if the distribution is successful, the Content Distribution Network (CDN) feeds back a play address to the source station, and the source station feeds back the play address to the Content Distribution System (CDS) or the LIVE channel (LIVE), and the Content Distribution System (CDS) or the LIVE channel (LIVE) records an encryption parameter and the play address.
In some embodiments, sending the encryption parameter and the play address to the requestor comprises: and sending the encryption parameter and the playing address to the requester through an EPG interface.
In this embodiment, after a Content Distribution System (CDS) or a LIVE channel (LIVE) records an encryption parameter and a play address, the encryption parameter and the play address are sent to a requesting party through an EPG interface for decoding and playing.
In some embodiments, after sending the encryption parameter and the play address to the requesting party, the following steps are further performed:
and step 1, the requester reads the corresponding second multimedia resource from the content distribution network according to the playing address.
In this embodiment, when the requester requests to play, the requester reads the corresponding second multimedia resource in the Content distribution network according to a play address sent by a Content Distribution System (CDS) or a LIVE channel (LIVE) through an EPG interface.
In this embodiment, the requester for reading the second multimedia resource is the terminal APK.
And 2, the requester decrypts the second multimedia resource according to the decryption algorithm corresponding to the encryption parameter to obtain a third multimedia resource.
In this embodiment, the requesting party for reading the second multimedia resource corresponds to a player, and the player performs decryption on the second multimedia resource when receiving a request for performing decryption playing on the second multimedia resource sent by the terminal APK.
And 3, the requesting party checks the third multimedia resource and plays the third multimedia resource under the condition that the checking is passed.
In this embodiment, the requestor performing the verification of the third multimedia resource and playing the third multimedia resource corresponds to a player.
In this embodiment, whether the corresponding second multimedia resource is based on the multimedia resource generated by the first multimedia resource is checked, so that the corresponding multimedia resource can be ensured to be played normally.
It should be noted that, no matter the terminal APK or the player belongs to the requesting party set forth in this embodiment, after receiving the second multimedia resource, the steps executed by the requesting party in different stages are executed by the terminal APK or the player; it is therefore to be understood that the requestor in this embodiment is clear.
Reading a corresponding second multimedia resource from the content distribution network according to the playing address by the requester in the step; the requester decrypts the second multimedia resource according to the decryption algorithm corresponding to the encryption parameter to obtain a third multimedia resource; the requesting party checks the third multimedia resource and plays the third multimedia resource under the condition that the checking is passed, thereby realizing the decryption and playing of the multimedia resource.
In some embodiments, the encryption parameter includes a content identification code and a user identification code, and the verifying the third multimedia resource by the requester includes the following steps:
step 1, the requester extracts the content identification code and the user identification code, and decrypts the content identification code and the user identification code according to a decryption algorithm to obtain a first verification secret key.
In this embodiment, the requesting party corresponds to a player.
And step 2, the requesting party matches the first checking secret key with a second checking secret key carried in the third multimedia resource, and determines a checking result according to the matching result.
In this embodiment, the requesting party corresponds to a player, and when receiving a request for decrypting and playing a second multimedia resource sent by the terminal APK, the player performs decryption on the second multimedia resource, that is, performs extraction of an encryption parameter content identifier and a user identifier, generates a first check key according to a decryption algorithm corresponding to the encryption parameter, verifies through the first check key and a second check key carried in a third multimedia resource (the second check key is generated when transcoding and encrypting the first multimedia resource to generate the second multimedia resource), passes the verification, and if the verification fails, the player performs normal playing, and prompts a playing error.
In some embodiments, before the requester reads the corresponding second multimedia resource from the content distribution network according to the play address, the following steps are further performed:
step 1, a requesting party receives response information which is sent by a preset service management system and responds to an authentication request, wherein the response information comprises an authentication result.
Step 2, under the condition that the authentication result includes successful authentication, the requesting party reads the corresponding second multimedia resource from the content distribution network according to the playing address;
and 3, receiving the preset configured multimedia resources under the condition that the authentication result comprises authentication failure.
And receiving response information which is sent by a preset service management system and responds to the authentication request through the requester in the steps, and determining whether to order the product according to a corresponding authentication result in the response information.
Fig. 3 is a flow chart of a multimedia resource distribution method according to the preferred embodiment of the present application, and as shown in fig. 3, the flow chart includes the following steps:
step 1, a provider injects a first multimedia resource from a media asset management system into a content distribution system.
And 2, the provider selects an encryption transcoding template in the content distribution system, and the content distribution system injects the encryption transcoding template and the first multimedia resource into the source station.
And 3, the source station transmits the first multimedia resource and the encryption transcoding template to the offline transcoder.
And 4, the off-line transcoder transmits the second multimedia resource to the source station.
And 5, the source station distributes the second multimedia resource to the content distribution network.
And 6, feeding back the playing address and the encryption parameter value source station by the content distribution network.
In this embodiment, the source station invokes an offline transcoder to perform encryption transcoding according to parameters of an encryption transcoding template, and distributes the generated second multimedia resource to a content distribution network; after the distribution is successful, the content distribution network feeds back the playing address and the encryption parameters to the source station.
And 7, the source station feeds back the playing address and the encryption parameter value content distribution system.
In this embodiment, the source station feeds back an injection result of the second multimedia resource distribution into the content distribution network to the content distribution system, where the injection result includes: playing address and encryption parameter.
And 8, the content distribution system sends the playing address and the encryption parameter value terminal APK.
In this embodiment, the content distribution system records the play address and the encryption parameter, and outputs the encrypted media asset identifier to the play address and the encryption parameter through the EPG interface for decoding and playing the encrypted media asset identifier to the terminal APK.
Fig. 4 is a flow chart of on-demand authentication playing according to the preferred embodiment of the present application, and as shown in fig. 4, the flow chart includes the following steps:
step S41, requests authentication.
In this embodiment, the terminal APK serves as a requester to request the on-demand type second multimedia resource for playing, and the terminal APK initiates an on-demand authentication to the service management system.
Step S42, determine whether the authentication is successful. If so, step S43 is performed, otherwise, step S49 is performed.
And step S43, returning the authentication success result. After that, step S44 is executed.
In this embodiment, the service management system performs user subscription authentication, and returns a terminal APK authentication success result if the authentication is successful; and if the authentication fails, returning to the ordered product list of the terminal APK.
Step S44, determine if it is an encrypted asset. If so, step S45 is performed, otherwise, step S47 is performed.
Step S45, sending the play address and the encryption parameter to request for playing. After that, step S46 is executed.
Step S46, the multimedia resource is decrypted and played.
In this embodiment, the terminal APK determines whether the second multimedia resource is an encrypted asset, and if the second multimedia resource is an encrypted asset, sends a play address and an encryption parameter of the second multimedia resource to the player to request to play; and when the player receives the playing request of the encrypted asset, extracting the encryption parameters, generating a first verification secret key according to an agreed algorithm, and verifying with a second verification secret key carried in the decrypted third multimedia resource, wherein the verification is passed to carry out normal playing, and the playing error is prompted when the verification fails.
Step S47, sending the playing address, requesting playing, and then executing step S48.
Step S48, the multimedia resource is played.
In this embodiment, the terminal APK determines that the second multimedia resource is an unencrypted asset, sends a play address of the corresponding multimedia resource to the player, and when the player receives a play request of the unencrypted multimedia resource, directly pulls the multimedia resource in the content distribution network for playing.
Step S49, return to the terminal APK orderable product list.
Fig. 5 is another flow chart of the multimedia resource distribution method according to the preferred embodiment of the present application, as shown in fig. 5, the flow chart includes the following steps:
step 1, a provider creates a live channel of a multimedia resource at a source station and accesses a first multimedia resource.
And 2, the source station transmits the first multimedia resource to the online encoder.
And 3, the online encoder transmits the second multimedia resource to the source station.
And 4, the source station distributes the second multimedia resource to the content distribution network.
And 5, feeding back the playing address and the encryption parameter value source station by the content distribution network.
In this embodiment, the source station invokes an online transcoder to perform encryption transcoding of a first multimedia resource and output a second multimedia resource in real time; and the source station injects the second multimedia resource into the content distribution network, and the content distribution network feeds back a play address providing the second multimedia resource.
And 6, the source station provides a playing address and an encryption parameter of the LIVE broadcast of the second multimedia resource for LIVE offline.
In this embodiment, LIVE (LIVE broadcasting room, LIVE broadcasting channel) records the encryption parameter and identifies the channel as encrypted, and then outputs the encrypted channel to the playing address through the EPG interface, and the encrypted channel is decoded and played to the terminal APK.
Fig. 6 is a flowchart of live authentication playing according to a preferred embodiment of the present application, and as shown in fig. 6, the flowchart includes the following steps:
step S61, the authentication request is live.
In this embodiment, the terminal APK serves as a requester to request the second multimedia resource of the live broadcast type to be watched, and the terminal APK initiates the live broadcast channel authentication to the service management system.
Step S62, determine whether the authentication is successful. If so, step S63 is performed, otherwise, step S69 is performed.
And step S63, returning the authentication success result. After that, step S64 is executed.
In this embodiment, the service management system performs user subscription authentication, and returns a terminal APK authentication success result if the authentication is successful; and if the authentication fails, returning to the ordered product list of the terminal APK.
In step S64, it is determined whether the channel is an encrypted channel. If so, step S65 is performed, otherwise, step S67 is performed.
Step S65, sending the play address and the encryption parameter to request for playing. After that, step S66 is executed.
Step S66, the multimedia resource is decrypted and played.
In this embodiment, the terminal APK determines whether the broadcast address of the live channel is encrypted, and if the broadcast address of the live channel is encrypted, sends the broadcast address of the channel and the encryption parameter to request for broadcast; when the player receives the playing request of the encrypted channel, the player extracts the encryption parameters, generates a first check key according to an agreed algorithm, and checks the first check key and a second check key carried in the decrypted third multimedia resource, wherein the player plays normally when the check is passed, and the player prompts a playing error when the check fails.
Step S67, sending the playing address, requesting playing, and then executing step S68.
Step S68, the multimedia resource is played.
In this embodiment, the terminal APK determines that the second multimedia resource is an unencrypted asset, sends a play address of a corresponding live channel to the player, and requests the player to send the play address of the corresponding live channel to the player to perform corresponding live play when the player receives a play request of the unencrypted multimedia resource.
Step S69, return to the terminal APK orderable product list.
In this embodiment, when the player receives a play request of an unencrypted channel, the player directly pulls a live-broadcast multimedia resource to play.
The present embodiment further provides a multimedia resource distribution apparatus, which is used to implement the foregoing embodiments and preferred embodiments, and the description of the apparatus is omitted here. As used hereinafter, the terms "module," "unit," "subunit," and the like may implement a combination of software and/or hardware for a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 7 is a block diagram of a multimedia resource distribution apparatus according to an embodiment of the present application, and as shown in fig. 7, the apparatus includes:
an acquisition module 71, configured to acquire a first multimedia resource provided by a provider;
the encryption module 72 is coupled with the acquisition module 71 and is used for performing encryption processing and transcoding processing on the first multimedia resource according to the encryption parameter and the transcoding parameter determined by the provider to obtain a second multimedia resource;
a distribution module 73, coupled to the encryption module 72, configured to distribute the second multimedia resource to the content distribution network, and obtain a playing address of the second multimedia resource in the content distribution network;
a storage module 74 coupled to the distribution module 73 for storing the encryption parameters and the playing address;
and a transmission module 75 coupled to the storage module 74, for transmitting the encryption parameter and the play address to the requesting party in case that the requesting party requests to play the second multimedia resource.
In some embodiments, the encryption module 72 is configured to obtain an encryption transcoding template provided by a provider, where the encryption transcoding template includes encryption parameters and transcoding parameters; extracting encryption parameters and transcoding parameters from the encryption transcoding template; and determining a transcoder according to the type of the first multimedia resource, and performing encryption processing and transcoding processing on the first multimedia resource through the transcoder according to a preset encryption mode and a preset transcoding format to obtain a second multimedia resource, wherein the preset encryption mode is determined according to the encryption parameters, and the preset transcoding format is determined according to the transcoding parameters.
In some embodiments, the encryption module 72 is configured to determine a type of the first multimedia asset, wherein the first multimedia asset comprises one of the following types of multimedia assets: on-demand multimedia resources, live multimedia resources; in the event that it is determined that the first multimedia resource comprises an on-demand type multimedia resource, determining that the transcoder comprises an offline transcoder; in an instance in which it is determined that the first multimedia asset comprises a live-type multimedia asset, it is determined that the transcoder comprises an online transcoder.
In some embodiments, the obtaining module 71 is configured to receive a first multimedia resource injected by a provider through a content distribution system, where the first multimedia resource includes an on-demand multimedia resource; and/or
And receiving a first multimedia resource accessed by a provider through the created live channel, wherein the first multimedia resource comprises a live type multimedia resource.
In some embodiments, the storage module 74 is configured to transmit the encryption parameter and the play address to a predetermined service for receiving the first multimedia resource, and store the encryption parameter and the play address, wherein the predetermined service includes one of: a content distribution system, a live channel.
In some embodiments, the transmission module 75 is configured to transmit the encryption parameter and the broadcast address to the requesting party through the EPG interface.
In some embodiments, the multimedia resource distribution apparatus further includes a playing module, configured to read a corresponding second multimedia resource from the content distribution network according to the playing address; decrypting the second multimedia resource according to a decryption algorithm corresponding to the encryption parameter to obtain a third multimedia resource; and checking the third multimedia resource, and playing the third multimedia resource under the condition that the checking is passed.
In some embodiments, the encryption parameter includes a content identification code and a user identification code, and the playing module is further configured to extract the content identification code and the user identification code, and decrypt the content identification code and the user identification code according to a decryption algorithm to obtain a first verification key; and matching the first checking secret key with a second checking secret key carried in the third multimedia resource, and determining a checking result according to a matching result.
In some embodiments, the playing module is further configured to receive, by the requestor, response information sent by the preset service management system and responding to the authentication request, where the response information includes an authentication result; under the condition that the authentication result includes successful authentication, reading the corresponding second multimedia resource from the content distribution network according to the playing address; and receiving the preset configured multimedia resources under the condition that the authentication result comprises authentication failure.
The above modules may be functional modules or program modules, and may be implemented by software or hardware. For a module implemented by hardware, the modules may be located in the same processor; or the modules can be respectively positioned in different processors in any combination.
The present embodiment also provides an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, a first multimedia resource provided by a provider is acquired.
And S2, according to the encryption parameters and the transcoding parameters determined by the provider, performing encryption processing and transcoding processing on the first multimedia resource to obtain a second multimedia resource.
And S3, distributing the second multimedia resource to the content distribution network, and acquiring the playing address of the second multimedia resource in the content distribution network.
S4, storing the encryption parameter and the playing address.
S5, in case that the requesting party requests to play the second multimedia resource, the encryption parameter and the play address are transmitted to the requesting party.
It should be noted that, for specific examples in this embodiment, reference may be made to examples described in the foregoing embodiments and optional implementations, and details of this embodiment are not described herein again.
In addition, in combination with the multimedia resource distribution method in the foregoing embodiments, the embodiments of the present application may provide a storage medium to implement. The storage medium having stored thereon a computer program; the computer program, when executed by a processor, implements any of the multimedia asset distribution methods of the above embodiments.
It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. A method for multimedia resource distribution, comprising:
acquiring a first multimedia resource provided by a provider;
according to the encryption parameters and the transcoding parameters determined by the provider, the first multimedia resource is encrypted and transcoded to obtain a second multimedia resource，The encryption parameter is associated with an encryption mode or an encryption algorithm for encrypting the first multimedia resource, and the transcoding parameter is associated with a transcoding format for transcoding the first multimedia resource into a code stream;
distributing the second multimedia resource to a content distribution network, and acquiring a playing address of the second multimedia resource in the content distribution network;
storing the encryption parameter and the playing address;
under the condition that a requester requests to play the second multimedia resource, the encryption parameter and the playing address are sent to the requester; wherein the content of the first and second substances,
acquiring a first multimedia asset provided by a provider comprises:
receiving the first multimedia resource injected by the provider through a content distribution system, wherein the first multimedia resource comprises an on-demand multimedia resource, and the on-demand multimedia resource is pulled from a media asset management system; and/or receiving the first multimedia resource accessed by the provider through the created live channel, wherein the first multimedia resource comprises a live multimedia resource;
according to the encryption parameters and the transcoding parameters determined by the provider, the encryption processing and the transcoding processing are carried out on the first multimedia resource, and the second multimedia resource is obtained by the following steps:
acquiring an encryption transcoding template provided by the provider, wherein the encryption transcoding template comprises the encryption parameters and the transcoding parameters;
extracting the encryption parameters and the transcoding parameters from the encryption transcoding template;
determining a transcoder according to the type of the first multimedia resource, and performing encryption processing and transcoding processing on the first multimedia resource through the transcoder according to a preset encryption mode and a preset transcoding format to obtain the second multimedia resource, wherein the preset encryption mode is determined according to the encryption parameters, and the preset transcoding format is determined according to the transcoding parameters;
determining a transcoder according to the type of the first multimedia resource comprises:
determining a type of the first multimedia asset, wherein the first multimedia asset comprises one of the following types of multimedia assets: on-demand multimedia resources, live multimedia resources;
determining that the transcoder comprises an offline transcoder if it is determined that the first multimedia resource comprises the on-demand multimedia resource;
determining that the transcoder comprises an online transcoder if it is determined that the first multimedia asset comprises the live-type multimedia asset.
2. The multimedia resource distribution method according to claim 1, wherein storing the encryption parameter and the play address comprises:
transmitting the encryption parameter and the play address to a preset service for receiving the first multimedia resource, and storing the encryption parameter and the play address, wherein the preset service comprises one of the following: the content distribution system and the live channel.
3. The multimedia resource distribution method of claim 1, wherein sending the encryption parameter and the play address to the requestor comprises: and sending the encryption parameter and the playing address to the requester through an EPG interface.
4. The multimedia resource distribution method according to claim 1, wherein after transmitting the encryption parameter and the play address to the requester, the method comprises:
the requester reads the corresponding second multimedia resource from the content distribution network according to the playing address;
the requester decrypts the second multimedia resource according to a decryption algorithm corresponding to the encryption parameter to obtain a third multimedia resource;
and the requester checks the third multimedia resource and plays the third multimedia resource under the condition that the checking is passed.
5. The multimedia resource distribution method of claim 4, wherein the encryption parameters comprise a content identification code and a user identification code, and wherein the verifying the third multimedia resource by the requesting party comprises:
the requester extracts the content identification code and the user identification code, and decrypts the content identification code and the user identification code according to the decryption algorithm to obtain a first verification secret key;
and the requesting party matches the first checking secret key with a second checking secret key carried in the third multimedia resource, and determines a checking result according to a matching result.
6. The multimedia resource distribution method according to claim 4, wherein before the requesting party reads the corresponding second multimedia resource from the content distribution network according to the play address, the method comprises:
the requesting party receives response information which is sent by a preset service management system and responds to the authentication request, wherein the response information comprises an authentication result;
under the condition that the authentication result includes successful authentication, the requesting party reads the corresponding second multimedia resource from the content distribution network according to the playing address;
and receiving the preset configured multimedia resources under the condition that the authentication result comprises authentication failure.
7. A multimedia resource distribution apparatus, comprising:
the system comprises an acquisition module, a content distribution system and a content management system, wherein the acquisition module is used for acquiring a first multimedia resource provided by a provider, and receiving the first multimedia resource injected by the provider through the content distribution system, wherein the first multimedia resource comprises an on-demand multimedia resource which is pulled from the media resource management system; and/or receiving the first multimedia resource accessed by the provider through the created live channel, wherein the first multimedia resource comprises a live multimedia resource;
the encryption module is used for carrying out encryption processing and transcoding processing on the first multimedia resource according to the encryption parameters and the transcoding parameters determined by the provider to obtain a second multimedia resource, wherein the encryption parameters are associated with an encryption mode or an encryption algorithm for encrypting the first multimedia resource, and the transcoding parameters are associated with a transcoding format for transcoding the first multimedia resource into a code stream; the encryption template is further used for acquiring an encryption transcoding template provided by the provider, wherein the encryption transcoding template comprises the encryption parameters and the transcoding parameters; extracting the encryption parameters and the transcoding parameters from the encryption transcoding template; determining a transcoder according to the type of the first multimedia resource, and performing encryption processing and transcoding processing on the first multimedia resource through the transcoder according to a preset encryption mode and a preset transcoding format to obtain the second multimedia resource, wherein the preset encryption mode is determined according to the encryption parameters, and the preset transcoding format is determined according to the transcoding parameters; and means for determining a type of the first multimedia asset, wherein the first multimedia asset comprises one of the following types of multimedia assets: on-demand multimedia resources, live multimedia resources; determining that the transcoder comprises an offline transcoder if it is determined that the first multimedia resource comprises the on-demand multimedia resource; determining that the transcoder comprises an online transcoder if it is determined that the first multimedia asset comprises the live-type multimedia asset;
the distribution module is used for distributing the second multimedia resource to a content distribution network and acquiring a playing address of the second multimedia resource in the content distribution network;
the storage module is used for storing the encryption parameters and the playing addresses;
and the transmission module is used for sending the encryption parameter and the playing address to the requester under the condition that the requester requests to play the second multimedia resource.
8. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and the processor is configured to execute the computer program to perform the multimedia resource distribution method of any of claims 1 to 6.
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