CN103428530B - Method and system for preventing user from skipping advertisements and media play client - Google Patents

Abstract

The invention discloses a method for preventing advertisement skipping, comprising: receiving program information including advertisement and program content, and authorization information associated with the program information, the authorization information including control information and content encryption key; Perform calculation on the decoding result of the advertisement to obtain the calculation result; compare the calculation result with the control information to obtain the comparison result; when the comparison result meets the preset program playing conditions, encrypt the content encryption key in the authorization information Process to obtain the content decryption key, and decrypt the program content. The invention also discloses a system for preventing advertisement skipping, a media playing client and a media content server. The present invention reduces the success rate of users watching programs without correct handling of advertisements by adopting double authentication of control information and content encryption keys, and better protects the interests of program providers and advertisement distributors.

Description

A method, system and media player client for preventing advertisement skipping

technical field

The invention relates to the field of video playing, in particular to a method, system and media playing client for preventing advertisements in programs from being skipped.

Background technique

The digital rights management system can realize the consumption management of the media content. A good digital rights management system should be able to provide flexible and diverse business models. Before the launch of pay-TV services, a major source of service revenue for service providers was advertising revenue. After the launch of the pay TV service, paid content will not be broadcast with advertisements for a considerable period of time. This business model lacks flexibility, and the development of the program's audience is limited. In recent years, a new business model is emerging, that is, the same content, while supporting a paid no-ad model, also supports a model with advertising without payment or less payment. This flexible business model brings service providers It not only provides more benefits, but also provides convenience for different audiences. For example, for business people, they may care more about time and efficiency, and they don't want to spend time watching advertisements. As for the student population, they have a lot of free time and hope to watch content for free after watching advertisements. However, this business model also encounters troubles, that is, advertisements may be maliciously skipped, which will harm the interests of advertisers and reduce the revenue of service providers.

The method usually adopted in the prior art is to add the decryption key of the program content in the advertisement. If the user skips the advertisement, the decryption key cannot be obtained and thus the program content cannot be watched. However, once the user obtains the decryption key, the program content will be viewable on any media client, skipping commercials. Therefore, this method cannot better protect the interests of program providers and advertisement distributors.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method and system for preventing advertisement skipping, a media player client, and a media content server, which can effectively protect the interests of program providers and advertisers.

In order to solve the above-mentioned technical problems, on the one hand, an embodiment of the present invention provides a method for preventing skipping advertisements, including: receiving program information including advertisements and program content, and authorization information associated with the program information, the The authorization information includes control information and content encryption key; perform viewing confirmation calculation on the advertisement to obtain the calculation result; compare the calculation result with the control information to obtain the comparison result; when the comparison result satisfies the preset When the program playing condition is met, the content encryption key in the authorization information is processed to obtain a decryption key, and the program content is decrypted according to the decryption key.

The processing the content encryption key in the authorization information to obtain the decryption key includes: using the client key of the media player client to decrypt the content encryption key.

The operation of confirming viewing of the advertisement and obtaining the operation result include: decoding the advertisement, dividing the decoding result into a number of advertising units according to preset rules, and performing the decoding result of each advertising unit by using a preset operation function. Watch the confirmation calculation to obtain the calculation result related to the content of the ad unit; compare the calculation result of the ad unit with the control information, and when the comparison result is: the number of ad units whose calculation result is the same as the control information reaches the preset When the judgment threshold is set, the comparison result meets the program playing conditions.

The calculation of viewing confirmation on the advertisement and obtaining the calculation result include: decoding the advertisement, and performing a viewing confirmation calculation on the decoding result by using a preset calculation function to obtain a calculation result related to the content of the advertisement; The calculation result is compared with the control information, and when the calculation result of the advertisement is the same as the control information, the obtained comparison result satisfies the program playing condition.

The control information is obtained by the media content server calculating the advertisement according to the preset calculation function.

The number of the control information is consistent with the number of advertising units.

On the other hand, the embodiments of the present invention also provide a system for preventing advertisement skipping, including: a media content server and a media player client, the media player client is used to receive the program information distributed by the media content server and communicate with The associated authorization information, the media player client includes: a receiving module, used to receive program information including advertisements and program content, and authorization information associated with the program information, the authorization information includes control information and content encryption Key; calculation module, used to perform viewing confirmation calculation on the advertisement, obtain the calculation result, and compare it with the control information to obtain the comparison result; security module, wherein the client key used to identify the unique media player client is set, so The client key is used to decrypt the content encryption key in the authorization information to obtain a decryption key when the comparison result meets the program playing conditions, and decrypt the program content according to the decryption key.

The calculation module is also used to divide the advertisement into several units according to preset rules, and then perform calculations on each advertising unit to obtain corresponding calculation results; When judging the threshold, the program playing condition is met.

The media playing client also includes: a decoding module, configured to decode the advertisement to obtain a decoding result.

The media content server includes: an advertisement processing module, which is used to set a calculation function, and use the calculation function to calculate the advertisement content to obtain a calculation result; an authorization information setting module, which is used to set control information according to the calculation result obtained by the calculation function , and obtain the client key of the media player client, and set the content encryption key according to the client key; the media distribution module is used to include the program information including advertisements and program content, and the authorization associated with the program information The information is distributed to the media playing client, wherein the authorization information includes the control information and the content encryption key.

The advertisement processing module is also used to divide the advertisement content into several units, and use the calculation function to calculate each advertisement unit separately to obtain corresponding calculation results.

On the other hand, the embodiment of the present invention also provides a media player client, including: a receiving module, configured to receive program information including advertisements and program content, and authorization information associated with the program information, the authorization The information includes control information and content encryption key; the calculation module is used to perform calculation on the decoding result of the advertisement to obtain the calculation result, and compare it with the control information to obtain the comparison result; A client key of the client, where the client key is used to decrypt the content encryption key in the authorization information to decrypt the content of the program when it is determined that the comparison result meets the program playing conditions.

The calculation module is also used to divide the advertisement into several units according to preset rules, and then perform calculation on each advertisement unit to obtain corresponding calculation results.

The media player client further includes: a decoding module, used to decode the advertisement to obtain a decoding result.

On the other hand, an embodiment of the present invention also provides a media content server, including: an advertisement processing module, configured to set an operation function, and use the operation function to calculate the advertisement content to obtain an operation result; an authorization information setting module, configured to Set the control information according to the obtained operation result, and obtain the client key of the media player client, and set the content encryption key according to the client key; the media distribution module is used to send the program including advertisement and program content Information and authorization information are distributed to the media player client, where the authorization information includes the control information and the content encryption key.

The advertisement processing module is also used to divide the advertisement content into several units, and use the calculation function to calculate each advertisement unit separately to obtain corresponding calculation results.

Embodiments of the present invention have the following advantages or beneficial effects:

The dual security mechanism of control information and content encryption key reduces the success rate of users watching programs without correct handling of advertisements, and better protects the interests of program providers and advertisement distributors.

Divide the advertisement into multiple units for verification, and set a judgment threshold. When an advertisement unit greater than or equal to the judgment threshold is verified to be correct, it is judged that the user has handled the advertisement correctly, which can avoid the user's correct handling due to communication errors and other reasons. Advertisement was judged to be a misjudgment that the advertisement was not handled correctly, which improved the user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a flowchart of a method for preventing advertisement skipping in an embodiment of the present invention;

Fig. 2 is a flowchart of a method for preventing skipping advertisements in another embodiment of the present invention;

Fig. 3 is a structural block diagram of an advertisement skip prevention system in an embodiment of the present invention;

Fig. 4 is a structural block diagram of a media player client in an embodiment of the present invention;

Fig. 5 is a structural block diagram of a media content server in an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings. Referring to FIG. 1 , it is a flowchart of a method for preventing advertisement skipping in an embodiment of the present invention.

The method for preventing advertisement skipping in this embodiment includes the following steps:

S101: The media player client receives program information including advertisements and program content, and authorization information associated with the program content, wherein the authorization information includes control information and a content encryption key.

S102: Decode the advertisement in the received program information to obtain a decoding result, and then perform viewing confirmation calculation on the decoding result according to a preset calculation function to obtain a calculation result.

S103: Comparing the operation result with the control information in the authorization information to obtain a comparison result.

S104: When the comparison result meets the preset program playing conditions, process the content encryption key in the authorization information to obtain a decryption key, and use the decryption key to decrypt the encrypted program content, so as to watch the program.

It should be noted that the viewing confirmation operation referred to above refers to confirming whether the user watches the advertisement. Generally, a certain part of the content of the advertisement is extracted according to the preset calculation function as the judgment criterion during the advertisement playing process, that is, the calculation result obtained by the calculation according to the preset calculation function is compared with the result obtained by the front-end server according to the same calculation function After comparison, if the two are the same, or meet a certain error condition, it means that the client has correctly processed the advertisement, and the comparison result meets the program playing condition.

In addition, when the above comparison result does not meet the preset program playing conditions, it means that the media client does not process the advertisement correctly, and therefore cannot process the content encryption key. Among them, the client does not process the advertisement correctly, including skipping the advertisement without viewing it, or merely scanning the advertisement without actually viewing the advertisement content.

Further, a unique client key is set for each media player client, and when the above comparison result meets the preset program playing conditions, the above unique client key is used to decrypt the content encryption key to obtain the decryption key , and then use the obtained decryption key to decrypt the program content, so as to watch the program.

Setting a unique client key for each media player client can prevent other clients from directly using the obtained decryption key to decrypt the program content without watching the advertisement after one media player client correctly decrypts the program content. The security of encrypted programs is further improved to ensure that advertisements can be viewed correctly. It should be noted that the set client password can be set in the security module in the form of software, or can be set in the security module in the form of hardware.

In an implementation manner, the comparison result meeting the preset program playing condition includes that the calculation result is the same as the control information.

Please refer to FIG. 2 , which is a flowchart of a method for preventing advertisement skipping in another embodiment of the present invention. It includes the following steps:

S201: The media player client receives program information including advertisements and program content, and authorization information associated with the program content, wherein the authorization information includes control information and a content encryption key.

S202: Decode the advertisement to obtain a decoding result; divide the decoding result into several units according to preset rules to form several advertisement units; and set a judgment threshold.

S203: Perform calculations on each advertising unit by using a preset calculation function to obtain corresponding calculation results.

S204: Comparing each calculation result with corresponding control information in the authorization information respectively to obtain multiple comparison results.

S205: Determine whether there are comparison results greater than or equal to the determination threshold that meet the preset program playing conditions;

S206: If yes, use the client key to decrypt the content encryption key to obtain a decryption key, and then use the decryption key to decrypt the program content.

In this embodiment, the determination threshold is set to determine whether the user has processed the advertisement correctly, which can avoid the misjudgment that the user correctly handles the advertisement due to problems such as code errors in the communication and is judged to have not processed the advertisement correctly, and improves the user experience. degree, enhancing the reliability of the system.

It should be noted that dividing the advertisement into several units is set by the media content server, and a corresponding number of control information is set according to the number of advertisement units, so as to judge each advertisement unit.

In addition, in this embodiment and the above-mentioned embodiments, the control information is obtained by the media content server processing the advertisement content according to the preset calculation function, so when the media player client uses the same calculation function to calculate the advertisement content , if the same result is obtained, it means that the client has correctly processed the advertisement. In one embodiment, a certain byte segment of the advertisement content can be used as the control information. For example, the advertisement content includes 30,000 bytes and is divided into 5 units, and each unit contains 6,000 bytes of content. The 5 bytes can be extracted respectively. The 500~506 bytes in a unit are used as control information. Of course, the length of the control information and how to select it can be flexibly set.

Please refer to FIG. 3 , which shows a structural block diagram of a system for preventing skipping advertisements in an embodiment of the present invention, which includes a media content server 1 and a media player client 2. The media content server 1 is used to include advertisements, programs The program information of the content and the authorization information associated with the program information are sent to the media player client 2 .

The media player client 2 includes a receiving module 21, a computing module 22, and a security module 23, wherein the receiving module is used to receive program information including advertisements and program content sent by the media content server, and authorization information associated with the program information, wherein authorization The information includes control information and content encryption key. The control information is used to determine whether the user handles the advertisement correctly, and the content encryption key is used to provide the user with a program decryption key after the user correctly handles the advertisement. The calculation module is used to perform calculation on the decoding result of the advertisement to obtain the calculation result, and compare it with the control information in the authorization information to obtain the comparison result. The security module is used to set a client key that identifies a unique media playback client, and the client key is used to decrypt the content encryption key in the authorization information to obtain a decryption key when it is determined that the comparison result meets the program playback conditions, and is used for Decrypt program content.

The calculation module is also used to divide the advertisement into several units according to preset rules, and then perform calculations on each advertising unit to obtain corresponding calculation results. Then, the calculation result is compared with the corresponding control information in the authorization information to obtain the comparison result. If there are comparison results greater than or equal to the judgment threshold that meet the playback condition, it means that the client has correctly processed the advertisement. It should be noted that the determination threshold may be set by the media content server and sent to the media playback client. The calculation module divides the advertisement into several units for processing, which is set by the media content server, because the media content server will set a control information corresponding to each advertisement unit.

Further, the media playing client also includes a decoding module, configured to decode the advertisement received by the receiving module to obtain a decoding result.

Media content server 1 comprises advertisement processing module 11, authorization information setting module 12, media sending module 13, and advertisement processing module is used for setting operation function, and utilizes this operation function to calculate advertisement content and obtain operation result; Authorization information setting module is used for according to this The operation result sets the control information, and obtains the client key of the media player client, and sets the content encryption key according to the client key; the media transmission module is used to combine the program information including the advertisement and the program content, and the program information with the program information The associated authorization information is sent to the media player client, wherein the authorization information includes the control information and the content encryption key set by the authorization information setting module.

Furthermore, the advertisement processing module is also used to divide the advertisement into several units, and use the set operation function to perform calculation on each ad unit to obtain the calculation result, and set corresponding control information according to each calculation result. In addition, it should be noted that the determination threshold may be set by the media content server 1 and sent to the media playing client.

Please refer to FIG. 4 , the present invention also provides a media player client, including a receiving module 21, a computing module 22, and a security module 23, wherein the receiving module is used to receive program information including advertisements and program content sent by a media content server , and the authorization information associated with the program information, wherein the authorization information includes control information and content encryption key, the control information is used to determine whether the user handles the advertisement correctly, and the content encryption key is used to provide the user with program decryption after the user correctly handles the advertisement key. The calculation module is used to perform calculation on the decoding result of the advertisement to obtain the calculation result, and compare it with the control information in the authorization information to obtain the comparison result. The security module is used to set a client key that identifies a unique media playback client, and the client key is used to decrypt the content encryption key in the authorization information to obtain a decryption key when it is determined that the comparison result meets the program playback conditions, and is used for Decrypt program content.

The calculation module is also used to divide the advertisement into several units according to preset rules, and then perform calculations on each advertising unit to obtain corresponding calculation results. Then, the calculation result is compared with the corresponding control information in the authorization information to obtain the comparison result. If there are comparison results greater than or equal to the judgment threshold that meet the playback condition, it means that the client has correctly processed the advertisement. It should be noted that the determination threshold may be set by the media content server and sent to the media playback client. The calculation module divides the advertisement into several units for processing, which is set by the media content server, because the media content server will set a control information corresponding to each advertisement unit.

Further, the media playing client also includes a decoding module, configured to decode the advertisement received by the receiving module to obtain a decoding result.

Please refer to FIG. 5 , the present invention also provides a media content server, including an advertisement processing module 11, an authorization information setting module 12, and a media transmission module 13. The advertisement processing module is used to set an operation function, and use the operation function to calculate the advertisement content to obtain Operation result; the authorization information setting module is used to set the control information according to the operation result, and obtain the client key of the media player client, and set the content encryption key according to the client key; the media sending module is used to include the advertisement, program The program information of the content and the authorization information associated with the program information are sent to the media player client, wherein the authorization information includes the control information and the content encryption key set by the authorization information setting module.

Furthermore, the advertisement processing module is also used to divide the advertisement into several units, and use the set operation function to perform calculation on each ad unit to obtain the operation result, and set corresponding control information according to each operation result, that is, each ad unit Corresponds to a control message. In addition, it should be noted that the determination threshold may be set by the media content server 1 and sent to the media playing client.

Embodiments of the present invention have the following advantages or beneficial effects:

By adopting the dual security mechanism of control information and content encryption key, the success rate of users watching programs without correct handling of advertisements is reduced, and the interests of program providers and advertisement distributors are better protected; in addition, advertisements are divided into Multiple units are verified, and a judgment threshold is set. When an advertising unit greater than or equal to the judgment threshold is verified to be correct, it is determined that the user has correctly processed the advertisement, which can avoid the situation that the user has correctly processed the advertisement but is rejected due to communication errors and other reasons. Misjudgment that it is judged that the advertisement is not handled correctly improves the user experience.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative efforts.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic CD, CD, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

The implementation methods described above do not limit the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above embodiments shall be included in the protection scope of the technical solution.

Claims (9)

1. A method for preventing advertisement skipping, comprising: receiving program information including advertisements and program content, and authorization information associated with the program information, where the authorization information includes control information and a content encryption key; Perform viewing confirmation calculation on the advertisement to obtain the calculation result; Comparing the operation result with the control information to obtain a comparison result; When the comparison result meets the preset program playing conditions, process the content encryption key in the authorization information to obtain a decryption key, and decrypt the program content according to the decryption key; The calculation of viewing confirmation of the advertisement is performed, and the calculation results obtained include: Decoding the advertisement, dividing the decoding result into a number of advertising units according to preset rules, and performing viewing confirmation calculations on the decoding results of each advertising unit by using a preset calculation function to obtain calculation results related to the content of the advertising unit; Comparing the calculation result of the advertisement unit with the control information, and when the comparison result is: the number of advertisement units whose calculation result is the same as the control information reaches a preset judgment threshold, the comparison result satisfies the program playing condition. 2. The method according to claim 1, wherein said processing the content encryption key in the authorization information to obtain the decryption key comprises: The content encryption key is decrypted using the client key of the media playing client. 3. The method according to any one of claims 1 to 2, wherein the control information is obtained by the media content server calculating the advertisement according to the preset calculation function. 4. The method according to claim 1, wherein the number of the control information is consistent with the number of advertising units. 5. A system for preventing advertisement skipping, characterized in that, comprising: a media content server, a media player client, the media player client is used to receive the program information distributed by the media content server and the authorization information associated therewith, The media player client includes: A receiving module, configured to receive program information including advertisements and program content, and authorization information associated with the program information, where the authorization information includes control information and a content encryption key; The decoding module is used to decode the advertisement to obtain the decoding result; The calculation module is used to divide the decoding result into several advertising units according to the preset rules, and then use the preset calculation function to calculate the decoding result of each advertising unit to obtain the corresponding calculation result; and when the calculation result is the same as the control information When the number of advertising units reaches the preset judgment threshold, the program broadcast condition is met; The security module is provided with a client key used to identify a unique media player client, and the client key is used to decrypt the content encryption key in the authorization information to obtain the decryption key when the operation result meets the program playing conditions , and decrypt the program content according to the decryption key. 6. The system according to claim 5, wherein the media content server comprises: The advertisement processing module is used to set the calculation function, and use the calculation function to calculate the advertisement content to obtain the calculation result; The authorization information setting module is used to set control information according to the operation result obtained by the operation function, and obtain the client key of the media player client, and set the content encryption key according to the client key; The media distribution module is used for distributing the program information including advertisement and program content, and the authorization information associated with the program information to the media playing client, wherein the authorization information includes the control information and the content encryption key. 7. The system according to claim 6, wherein the advertisement processing module is further used to divide the advertisement content into several units, and use the calculation function to calculate each advertisement unit separately to obtain corresponding calculation results. 8. A media player client, characterized in that, comprising: A receiving module, configured to receive program information including advertisements and program content, and authorization information associated with the program information, where the authorization information includes control information and a content encryption key; The decoding module is used to decode the advertisement to obtain the decoding result; The calculation module is used to divide the decoding result into several advertising units according to the preset rules, and then use the preset calculation function to calculate the decoding result of each advertising unit to obtain the corresponding calculation result; and when the calculation result is the same as the control information When the number of advertising units reaches the preset judgment threshold, the program broadcast condition is met; The security module is provided with a client key used to identify a unique media player client, and the client key is used to decrypt the content encryption key in the authorization information when it is determined that the operation result meets the program playing conditions, so as to decrypt the program content. 9. A media content server, characterized in that, comprising: The advertisement processing module is used to set the calculation function, divide the advertisement content into several units, and use the calculation function to calculate each advertisement unit separately to obtain the corresponding calculation result; An authorization information setting module, configured to set control information according to the obtained operation result, and obtain a client key of a media player client, and set a content encryption key according to the client key; The media distribution module is used for distributing program information including advertisements and program content, and authorization information to media playing clients, wherein the authorization information includes the control information and the content encryption key.