CN101329713B - Method and apparatus for processing digital content - Google Patents

Abstract

The invention discloses a digital content processing method, which includes: acquiring digital content; acquiring first information, the first information includes first indication information and a first condition, wherein the first indication information includes indication The second operation needs to be performed before the first operation is performed on the digital content, and the first condition is the condition that the second operation needs to be performed; if it is determined that the first condition is met, then execute the instruction of the first instruction information; if it is determined not to If the first condition is satisfied, the first operation is directly performed. The invention also discloses a communication device. By adopting the invention, the processing mode of digital content can be controlled.

Description

Digital content processing method and device

technical field

The invention relates to the technical field of digital copyright management, in particular to a method and equipment for processing digital content.

Background technique

Digital Rights Management (DRM) mainly controls the use of digital content through rights restrictions and content protection schemes to protect the legitimate rights and interests of content owners. A user obtains digital content from a network or other devices, and the digital content is generally encrypted, and forms a content data packet together with other information (such as an encryption algorithm of the content). The license server (Rights Issuer, RI) is responsible for issuing the corresponding license (Rights Object, RO) for the content data package, and the license includes the content decryption key and the corresponding authority. A device can use digital content normally only if it has both the content data package and the license. The DRM device obtains the content decryption key through the license, and then decrypts the digital content. The license contains information such as rights and restrictions. The rights indicate what the device can do, such as allowing the device to print, browse, etc., and the restrictions indicate the conditions under which the device can do it, such as allowing the device to browse at most. The DRM device must perform corresponding operations according to the permissions required by the license.

With the widespread use of digital content, carrying advertisements through digital content has become a possible business model. Merchants can promote their products through advertisements, and consumers can reduce part or even all of the cost of purchasing digital content by watching advertisements.

Existing technology one

A method of introducing advertisements within the DRM system is provided. As shown in Figure 1, the content data package downloaded by the user includes two parts (DRM Container), the first part is the digital content required by the user, and the second part is the advertisement. A corresponding identifier is included in the content data packet to indicate that the content data contains advertisements, and the identifier is usually located in the header of a DRM content format (DRM Content Format, DCF).

As shown in Figure 2, the basic flow of a device consuming digital content with advertisements is as follows:

Step 201, the user obtains the required digital content through the device.

Step 202, the device judges whether the DCF contains advertisements according to whether there is a corresponding identifier in the DCF, and if so, executes step 204; otherwise, executes step 203.

Step 203, the device directly consumes the digital content.

In step 204, the device judges whether the license corresponding to the digital content is available, and if so, executes step 205; otherwise, executes step 206. (In the case of advertisements carried in the DCF, the license corresponding to the digital content should be in an unavailable state initially)

Step 205, the device prompts the user that there is an error in the processing.

Step 206 , the device judges whether the license corresponding to the digital content is invalid, and if it has expired, execute step 205 ; if not, execute step 207 .

Step 207, when the device determines that the license corresponding to the digital content is unavailable and the license is not invalid, consume the advertisement.

Step 208, the device sends relevant information to the advertisement management server according to the address in the DCF, so as to judge whether the advertisement server allows the device to use the license.

Step 209, the device receives a response from the advertisement management server.

Step 210, the device judges whether to allow the use of the license according to the received response, if not allowed, execute step 211; if allowed, execute step 212.

Step 211, the device puts the license in an unavailable state.

Step 212, the device puts the license into an available state.

Step 213, the device consumes the digital content, and sets the corresponding license to an unavailable state after consumption.

The inventor finds that there are following technical requirements in the process of realizing the present invention:

1. Advertisers need to control how users consume advertisements.

For example, an advertiser allows a user to watch an ad several times without having to continue watching the ad. In prior art 1, users must watch advertisements every time they consume digital content, and no specific solution is provided for limiting the number of viewing times of advertisements, which limits the operation of other business models.

As another example, for advertisers, they hope that users can watch the advertisement completely, for example, users cannot skip the advertisement by dragging, fast-forwarding, etc., but the prior art 1 does not explain how to control the device to consume the advertisement.

2. In many cases, the device may be offline, and the advertisement management server in the prior art 1 must be in the online state during operation. Therefore, the above-mentioned prior art cannot be adopted by the device without online capability.

Prior art two

In the Open Digital Rights Language (ODRL) specification, you can use the <sequence> element to restrict the order in which operations are performed, for example:

<sequence order="total">

<seq-item number="1">

<permission>

<play/>

<asset>Advertising</asset>//First perform the operation of playing the advertisement

</permission>

<seq-item>

<seq-item number="2">

<permission>

<play/>

<asset>Movie</asset>//Then perform the operation of playing the movie

</permission>

<seq-item>

</sequence>

In ODRL, the <requirement> element can also be used to indicate the preconditions that must be met before performing an operation, for example:

<permission>

<play/>

<asset>Movie</asset>

</permission>

<requirement>

<sequence>

<seq-item number="1">

<permission>

<play/>

<asset>Advertising</asset>//The advertisement must be played before the movie is played

</permission>

<seq-item>

</sequence>

</requirement>

The inventor finds that there are following technical requirements in the process of realizing the present invention:

Advertisers need to control how users consume advertisements.

For example, an advertiser may allow a user to watch an ad several times without continuing to watch the ad. In prior art 2, the <requirement> element must be executed every time the digital content is consumed. Similarly, for the <sequence> element, when the mode is "total", the previous operation must be executed before the next one can be executed. Operation, that is, every time a user consumes digital content, he must first watch an advertisement, which limits the operation of other business models.

As another example, for advertisers, they hope that the user can completely watch the advertisement, for example, the user cannot skip the advertisement by dragging, fast-forwarding, etc., and the second prior art does not provide any information on how to control the device to consume the advertisement. specific plan.

Contents of the invention

Embodiments of the present invention provide a method and device for processing digital content, which are used to control the processing mode of digital content.

An embodiment of the present invention provides a method for processing digital content, the method comprising:

access to digital content;

Acquire first information, where the first information includes first indication information and a first condition, wherein the first indication information includes an indication that a second operation needs to be performed before performing the first operation on the digital content, and the first A condition is a condition requiring the second operation;

Determining that the first condition is met, then execute the indication of the first indication information;

If it is determined that the first condition is not met, the first operation is directly performed.

The embodiment of the present invention also provides a digital content processing method, the method comprising:

access to digital content;

Acquiring second information, where the second information includes first indication information and second indication information, wherein the first indication information includes an indication that a second operation needs to be performed before performing the first operation on the digital content, the The second indication information includes indicating whether to allow the first operation when the second operation cannot be completed;

Executing the indication of the first indication information, and performing the first operation when it is further determined according to the second indication information that the first operation is allowed when the second operation cannot be completed.

The embodiment of the present invention also provides a digital content processing method, the method comprising:

access to digital content;

acquiring third information, the third information including information prohibiting operations on the digital content;

When it is determined according to the third information that the operation to be performed on the digital content is not prohibited, perform the operation on the digital content.

The embodiment of the present invention also provides a communication device, including:

a first acquiring module, configured to acquire digital content;

The second acquiring module is configured to acquire first information, where the first information includes first indication information and a first condition, wherein the first indication information includes an indication that a first operation needs to be performed on the digital content before performing the first operation. The second operation, the first condition is a condition that requires the second operation;

A first determining module, configured to determine whether the first condition is met;

The first operation module is configured to execute the indication of the first indication information when the first condition is met; and directly perform the first operation when the first condition is not met.

The embodiment of the present invention also provides a communication device, including:

a first acquiring module, configured to acquire digital content;

The third acquiring module is configured to acquire second information, the second information includes first indication information and second indication information, wherein the first indication information includes an indication that the digital content needs to be performed before the first operation is performed. The second operation, the second indication information includes indicating whether to allow the first operation when the second operation cannot be completed;

The second operation module is configured to execute the indication of the first indication information; and is configured to perform the first operation when it is determined that the first operation is allowed;

The second determining module is configured to further determine whether to allow the first operation according to the second indication information when the second operation cannot be completed.

The embodiment of the present invention also provides a communication device, including:

a first acquiring module, configured to acquire digital content;

A fourth obtaining module, configured to obtain third information, where the third information includes information prohibiting operations on the digital content;

A fourth determination module, configured to determine whether the operation to be performed on the digital content is a prohibited operation according to the third information;

The third operating module is configured to perform the operation on the digital content when it is determined that the operation to be performed on the digital content is not prohibited.

In the embodiment of the present invention, when the first condition is satisfied, the second operation is performed on the digital content before the first operation; when the first condition is not satisfied, the first operation can be directly performed on the digital content; When the second operation cannot be completed, the first operation can be performed when the first operation is allowed according to the instruction of the second instruction information; therefore, it is not required to perform the second operation before performing the first operation on the digital content, which improves the Flexibility when processing digital content; on the other hand, before operating digital content, first judge whether the operation to be performed on digital content is a prohibited operation according to the third information, and determine that the operation is not prohibited For prohibited operations, the operations are performed on the digital content, thereby introducing restrictions on the operation of the digital content; in summary, the method of the embodiment of the present invention can be used to control the processing mode of the digital content.

Description of drawings

FIG. 1 is a schematic structural diagram of a content data packet in the background technology;

Fig. 2 is a basic flowchart of a device consumption of digital content with advertisements in the background technology;

FIG. 3 is a flow chart of processing digital content in an embodiment of the present invention;

FIG. 4 and FIG. 5 are flowcharts of processing digital content after introducing the second condition and the second instruction information in the embodiment of the present invention;

Fig. 6 is a flow chart of processing digital content according to the second indication information in an embodiment of the present invention;

FIG. 7 and FIG. 8 are flowcharts of processing digital content when certain operations on digital content are prohibited in the embodiment of the present invention;

FIG. 9 is a flowchart of an example of processing digital content in an embodiment of the present invention;

Fig. 10 is a processing flowchart of consuming media content in DCF in an embodiment of the present invention;

Fig. 11a, Fig. 11b, Fig. 11c, Fig. 11d, Fig. 12 and Fig. 13 are schematic structural diagrams of communication devices in the embodiments of the present invention.

Detailed ways

In the embodiment of the present invention, if the condition for performing the second operation on the digital content is satisfied, the second operation is performed before the first operation on the digital content, and if not, the first operation can be performed directly; if the second operation If it cannot be completed, then according to the indication of the second instruction information, when the first operation is allowed, the first operation can be performed, which can improve the flexibility when processing the digital content; when it is determined that the operation to be performed on the digital content is not For prohibited operations, performing this operation on the digital content can restrict the operation on the digital content; in this way, the processing method of the digital content can be controlled.

In one embodiment, the process for processing digital content is shown in Figure 3, including:

Step 301, acquire digital content.

Step 302. Obtain first information, the first information includes first indication information and a first condition, wherein the first indication information includes an indication that a second operation needs to be performed before the first operation is performed on the digital content, and the first condition is required Conditions for performing the second operation.

Step 303 , judging whether the first condition is met, if yes, execute step 304 , otherwise execute step 305 .

Step 304: Execute the instruction of the first instruction information, and perform the second operation before performing the first operation on the digital content.

Step 305, directly perform the first operation on the digital content.

A specific example is: the digital content is a movie, the first indication information indicates that payment is required before playing the movie, and the first condition is that payment is required before playing the movie for the first time.

In one embodiment, the digital content obtained in step 301 may include the first content and the second content. During subsequent processing, performing the first operation on the digital content may be performing an operation on the first content, and performing a second operation on the digital content. The operation may be to operate on the second content. Wherein, the first content and the second content may be contained in the same digital content package, or may be contained in different digital content packages. At this time, the first information can be carried in the license corresponding to the first content, that is, the license provider can indicate in the license that the second content needs to be operated before the first content can be operated, and the second content needs to be operated conditions of. Taking ODRL (Open Digital Rights Language) as an example, you can add a <constraint> sub-element under the <requirement> element to indicate the first condition, that is, under what circumstances the second operation is required, of course , the second operation may be an operation on the second content, which is specifically described as follows:

<xsd:complexType name="requirementType">

<xsd:sequence minOccurs="0" maxOccurs="unbounded">

<xsd:element ref="o-ex:context" minOccurs="0" maxOccurs="unbounded"/>

<xsd:element ref="o-ex:requirementElement" minOccurs="0"

maxOccurs="unbounded"/>

<xsd:element ref="o-ex:container" minOccurs="0" maxOccurs="unbounded"/>

<xsd:element ref="o-ex:sequence" minOccurs="0" maxOccurs="unbounded"/>

<xsd:element ref="o-ex:constraint" minOccurs="0" maxOccurs="unbounded"/>//first condition

</xsd:sequence>

<xsd:attributeGroup ref="o-ex:IDGroup"/>

</xsd:complexType>

Among them, the <constraint> element is used to indicate the condition that requires the second operation, that is, the first condition. Some conditions that have been defined so far can be used here, including: number of times, time period, duration, system limit, and cycle time. You can also define some new conditions, for example, you can define a condition for the number of periods, which means that the corresponding operation needs to be performed every several times, that is, the period is calculated by the number of times, for example, define the <countperiod> element in ODRL, the element Contains an integer value greater than 0 representing the number of cycles. Of course, the first condition may also be any combination of the number of times, time period, duration, period, and the like.

In an application scenario, the first indication information may also indicate the type of the second content, such as indicating that the second content is an advertisement. Of course, the first indication information may also indicate that the first content is digital content that the user wants to operate. A specific example is: the first content is a movie, the second content is an advertisement, the first indication information indicates that an advertisement needs to be played before the movie is played, and the first condition is that an advertisement needs to be played before the movie is played for the first time, then the following may be included: License snippet:

<permission>

<play/>

<asset>Movie</asset>

</permission>

<requirement>

<sequence>

<seq-item number="1">//The first instruction indicates that an advertisement needs to be played before playing the movie

<permission>

<play/>

<asset>Advertising</asset>

</permission>

<seq-item>

</sequence>

<constraint>

<count>1</count>//The first condition is that the advertisement needs to be played before the movie is played for the first time

</constraint>

</requirement>

In the above example, after the movie and advertisement content are obtained, according to the first indication information in the first information, it can be determined that the advertisement needs to be played before the movie is played, and it can be further determined according to the first condition in the first information that the advertisement needs to be played before the first information. Play an advertisement before playing a movie once; if the operation of playing a movie is the first time to play a movie, the advertisement needs to be played before playing the movie; if the operation of playing a movie is not the first time to play a movie, that is, the movie has been played before , the ad does not need to play before the movie.

Before obtaining the second content, the address information of the second content may be obtained first, and the second content may be obtained according to the address information. The operation on the second content may include one of playing, displaying, updating or any combination thereof. In an embodiment, the advertisement needs to be updated regularly, so a new right <update> can be defined to update a certain content, for example:

<! ELEMENT xxx:update(o-ex:constraint?, o-ex:requirement?)>

<! ATTLIST xxx:update xxx:updateurl CDATA#IMPLIED>//Update a certain content

Among them, the <update> element contains an attribute updateurl, which is used to define the address of the update. When updating, an HTTP GET message can be sent to the address to obtain new content or update information corresponding to the original content. After acquiring new content or updating the original content to new content according to the update information, the new content can be inserted into the DCF to replace the original content. Some DRM systems require integrity protection for the DCF. In this case, the original content that can be updated is not within the scope of integrity protection calculations.

In one embodiment, under the <constraint> element, a first condition can be defined, which is used to describe when content needs to be updated, such as cycle time, cycle times, and the like. A specific example is as follows: where the first content is a movie and the second content is an advertisement, the license fragment indicates that the operation of updating and playing the advertisement needs to be performed every three times when the movie is played, that is, after the advertisement is played, the movie can be watched three times , then you need to update the ad and play the ad again.

<permission>

<play/>

<asset>Movie</asset>

</permission>

<requirement>

<sequence>

<seq-item number="1">//The first instruction indicates that the advertisement needs to be updated before playing the movie

<permission>

<update updateurl="http://xxxxxxxxx"/>/advertisement update address

<asset>Advertising</asset>

</permission>

</seq-item>

     <seq-item number="2">//The first instruction indicates that before playing the movie, after updating the advertisement, it needs to be played

advertise

<permission>

<play/>

<asset>Advertising</asset>

</permission>

</seq-item>

</sequence>

<constraint>

     <countperiod>3</countperiod>//The first condition is that the movie needs to be updated and played every three times

put an ad once

</constraint>

</requirement>

In one embodiment, the first information also includes a second condition, which is a condition for being able to operate on the second content; after it is determined that the first condition is met, it is necessary to further determine whether the second condition is met, and determine When the second condition is met, the operation is performed on the second content before the operation on the first content.

Further, in one embodiment, the first information further includes second indication information, and the second indication information includes indication that when the second operation cannot be completed, if the second condition is not met, or if the second condition is met, the second operation When the second operation still cannot be completed, whether to allow the operation on the first content; when performing the second operation, if the operation cannot be completed, it can further judge whether to allow the first operation according to the second instruction information, and determine whether to allow the second operation In one operation, perform the first operation.

For example, the second indication information can be implemented by defining a new attribute under the <sequence> element in ODRL, and the new attribute is used to indicate that when the conditions for an operation in the operation list are not met, the operation cannot be performed. When in progress, whether this operation can be skipped to perform subsequent operations, the specific description is as follows:

<xsd:complexType name="sequenceType">

<xsd:sequence>

<xsd:element ref="o-ex:seq-item" maxOccurs="unbounded"/>

</xsd:sequence>

<xsd:attribute name="order" default="total">

...

</xsd:attribute>

<xsd:attribute name="skip" default="no">//Whether this operation is allowed to be skipped, the default is that it cannot be skipped

<xsd:simpleType>

<xsd:restriction base="xsd:NMTOKEN">

<xsd:enumeration value="yes"/>

<xsd:enumeration value="no"/>

</xsd:restriction>

</xsd:simpleType>

</xsd:attribute>

</xsd:complexType>

Among them, when the value of the "skip" attribute is "yes", it means that if the conditions for the operation in the sequence are not satisfied and the operation cannot be performed successfully, the operation can be skipped Continue to perform the following operations; when the value is "no", it means that the operation cannot be skipped, and the entire operation sequence must be terminated. If this attribute is not included, the default is that the operation cannot be skipped.

In one embodiment, after introducing the second condition and the second indication information, the processing flow of the digital content is shown in Figure 4, including:

Step 401, acquire the first content, the second content, and the first information, and determine according to the first information that the first condition is satisfied; wherein, the first information includes the first indication information and the first condition, and the first indication information indicates that the The second content needs to be operated before the first content can be operated, and the first condition is the condition that the second content needs to be operated. For example, check that the operation on the first content and the operation on the second content in the license are included under the <sequence> element, the operation on the second content is located before the operation on the first content, and the first condition is currently satisfied .

Step 402 , further judging whether the second condition is met, wherein the second condition is included in the first information, and is a condition for being able to operate on the second content; if the second condition is met, perform step 403 ; otherwise, perform step 405 .

Step 403, perform an operation on the second content.

Step 404, perform an operation on the first content.

Step 405, further judging whether to allow operation on the first content according to the second indication information, wherein the second indication information is included in the first information, indicating whether to allow operation on the first content when the second condition is not satisfied, For example, check the attribute value of <skip> in <sequence>; if the first content is allowed to be operated, go to step 404; otherwise go to step 406.

Step 406, refuse to operate on the first content.

In one embodiment, after introducing the second condition and the second indication information, the processing flow of the digital content is as shown in Figure 5:

Step 501. Obtain first content, second content, and first information; wherein, the first information includes first instruction information, first conditions, and second conditions, and the first instruction information indicates that it is necessary to perform operations on the first content. The second content is operated, the first condition is the condition that the second content needs to be operated, and the second condition is the condition that the second content can be operated.

Step 502 , judging whether the first condition is met according to the first information, if yes, execute step 503 , if not, execute step 507 .

Step 503: When it is determined according to the second condition that the second content can be operated, perform the operation on the second content.

Step 504 , judging whether the operation on the second content has been completed, if yes, go to step 507 , otherwise go to step 505 .

Step 505: Determine whether the operation on the first content is allowed according to the second indication information, that is, whether the operation on the second content can be skipped, wherein the second indication information is included in the first information, In the case of the second condition, whether to allow the operation on the first content when the operation on the second content still cannot be completed; if not allowed, go to step 506; if allowed, go to step 507.

Step 506, refuse to operate on the first content, and end the process.

Step 507, operate on the first content, and end the process.

In the above embodiment, when the first condition is met, the second operation is performed before the first operation on the digital content, and when the second operation cannot be completed, the first operation can be performed when permitted according to the second indication information. The operation is to use the second indication information in combination with the first condition. In another embodiment, the second indication information can be used alone. At this time, the first condition is not set, that is, according to the indication of the first indication information, it can be used in Perform the second operation before the first operation.

In one embodiment, the process of processing digital content according to the second instruction information is shown in Figure 6, including:

Step 601, acquire digital content.

Step 602: Acquire second information, the second information includes first indication information and second indication information, wherein the first indication information includes indicating that the second operation needs to be performed before performing the first operation on the digital content, and the second indication information Include indicates whether to allow the first operation if the second operation cannot be completed.

Step 603: Execute the instruction of the first instruction information, and perform the second operation before performing the first operation on the digital content.

Step 604 , judging whether the second operation has been completed, if yes, go to step 606 , otherwise go to step 605 .

Step 605 , judging whether the first operation is allowed according to the second indication information, if allowed, go to step 606 , otherwise go to step 607 .

Step 606, perform the first operation.

Step 607, refuse to perform the first operation.

In one embodiment, the digital content obtained in step 601 may include first content and second content, and during subsequent processing, performing the first operation on the digital content may include performing an operation on the first content, and performing a second operation on the digital content. Operating may include operating on the second content. At this time, the first indication information may also indicate that the first content is digital content that the user wants to operate, and the second content is an advertisement. Before obtaining the second content, the address information of the second content may be obtained first, and the second content may be obtained according to the address information. The second information may be carried in licenses corresponding to the first content and the second content. The operations performed on the second content include one of playing, displaying and updating or any combination thereof.

In another embodiment of the present invention, it is possible to prohibit certain operations on certain digital content. At this time, the processing flow of digital content is shown in Figure 7, including:

Step 701, acquire digital content.

Step 702. Acquire third information, where the third information includes information prohibiting operations on digital content. For example, when the digital content is an advertisement, operations such as dragging and fast forwarding of the advertisement by the user are restricted, so that the advertisement content can be played completely.

Step 703. Determine whether the operation to be performed on the digital content is a prohibited operation according to the third information.

Step 704, when it is determined that the operation to be performed on the digital content is not prohibited, perform the operation on the digital content.

The third information can be carried in the license corresponding to the digital content. For example, it can define which operations are prohibited in the license. These operations can be some sub-operations under a large operation. For example, most license description languages currently support " "play" right, which means that the device can perform "play" operations (such as playing movies, playing music, etc.), and fast forward, rewind, etc. are some sub-operations of playback. Prohibited sub-operation list, when the user needs to perform certain operations, it is necessary to check whether the operation to be performed is in the list, and if so, reject the user's operations. Taking ODRL as an example, the modifications to the license description language are as follows:

<! ELEMENT o-dd:play(o-ex:constraint?, o-ex:requirement?, xxx:forbidden?)>

<! ELEMENT xxx:forbidden(xxx:fastForward?xxx:fastRewind?xxx:stop?xxx:previous?xxx:next?xxx:randomPlay?)>//Forbidden sub-operation list

Among them, the prohibited operations are defined in the <forbidden> element, including fast forward (fastForward), fast rewind (fastRewind), stop (stop), jump to the previous fragment (previous, that is, the order of multiple fragments is defined in advance, Skip to the previous segment to start playing), skip to the next segment (next, jump to the next segment to start playing), free positioning (randomPlay, that is, drag or click the progress bar to jump to the specified position to play). Of course, the prohibited operations may include one or any combination of the above operations.

In one embodiment, the processing flow of digital content is shown in Figure 8, including:

Step 801, designate a certain operation on the digital content, for example, the digital content is a movie, designate the following operations: open the movie, press the fast forward button.

Step 802: Detect all rights in the license corresponding to the digital content.

Step 803. Determine whether the specified operation has a corresponding right, for example, corresponding to fast forward, and its right is "play". If the corresponding right is not included, go to step 804; if yes, go to step 805.

Step 804, deny the specified operation.

Step 805: Detect the prohibited operation list corresponding to the right, of course, if the right does not contain a forbidden operation list, then execute step 807.

Step 806 , check whether the specified operation is in the forbidden operation list, for example, check whether the fast forward is in the forbidden operation list, if yes, go to step 804 ; otherwise, go to step 807 .

Step 807, perform the specified operation.

In the process shown in Figure 3, when the obtained digital content includes the first content and the second content, the above-mentioned method of prohibiting certain operations on the content can also be applied, for example, prohibiting certain operations on the second content, wherein, Prohibited operations may include fast forward, rewind, stop, skip to previous segment, skip to next segment, free positioning one of them or any combination. At this time, the first information also includes information prohibiting operations on the second content; after it is determined that the first condition is satisfied, it is further judged according to the first information whether the operation to be performed on the second content is a prohibited operation, and after determining When the operation is not prohibited, perform the operation on the second content before performing the operation on the first content.

In the embodiment of the present invention, a specific example of processing digital content is shown in Figure 9, wherein the first content is a movie, and the second content is an advertisement:

Step 901, the user logs in to the website of the content provider/license provider through the terminal device, finds his favorite movie and purchases the movie, wherein the webpage may prompt the user whether to choose a movie version that carries an advertisement, for example, prompting the user to choose The movie versions are: (1) movie without advertisement, 10 yuan (2) movie with advertisement, the advertisement needs to be played when the movie is played for the first time, 3 yuan (2) movie with advertisement, every time the movie is played Advertisements need to be played, 1 yuan.

Step 902. The user chooses to download a movie with advertisements. The movie needs to play advertisements when it is played for the first time. The user downloads digital content and corresponding licenses through the terminal device. The digital content includes movies and advertisements.

Step 903, when the user wants to watch a movie, the terminal device checks the corresponding license and finds that the advertisement must be played first, then the terminal device first plays the advertisement.

Step 904, after the advertisement is played, the terminal device starts to play the movie. When the user wants to watch the movie again in the future, they don't need to see the ad again.

In the above embodiments, the first information, the second information and the third information are carried in the license corresponding to the digital content. In another embodiment, the first information, the second information and the third information may be carried in the digital content, for example , carried in the corresponding DCF header information.

In a specific example, an information DRMADHeader is included in the DCF, which can indicate that the corresponding content is an advertisement, and can include some related parameters, namely the first information, the second information or the third information:

aligned(8) class DRMADHeader extends FullBox('adhr', version, 0) {

bit(1) datetimeflag;

bit(1)countflag;

bit(1)adurlflag;

bit(1)forbiddenflag;

bit(4)reserved;

if(datetimeflag){

bit(40)start;

bit(40)end;

}

if(countflag){

unsigned int(8) count;

}

if(adurlflag){

unsigned int(8)adurllength;

char adurl[];

}

if(forbiddenflag){

unsigned int(8)number;

  tor (i=0; i<number; i++){

unsigned int(8) forbiddenOperation;

}

}

}

The DRMADHeader can be included in the DCF header information, and the header indicates that the corresponding content can be an advertisement. If the device detects that the DCF contains the header information, the device needs to play the advertisement first when consuming the digital content in the DCF.

Wherein, the adurl parameter in the DRMADHeader indicates the address for obtaining the advertisement, and an HTTP GET request is first sent to the address during operation, and the response message corresponding to the request can be an (X)HTML page (such as a merchant's homepage or a product introduction webpage), Either an SDP (SessionDescription Protocol, Session Description Protocol) (for example, the SDP contains an online advertisement address, and the device links to this address to watch online advertisements), or an advertisement content (for example, an advertisement video, which the device needs to Play the advertisement first), or the description information of an advertisement download (such as download description (Download Descriptor, DD), the device downloads the actual advertisement according to the DD and plays it, etc. Of course, adurl can also define when it needs to send HTTP GET request, such as defining the time of next acquisition, periodic acquisition by time, periodic acquisition by number of times, etc.

The DRMADHeader may also contain some parameters to describe the conditions under which the advertisement needs to be played. If datetimeflag is true, it means that during the specified time period, if other digital content is to be consumed, an advertisement must be played. Among them, the start parameter is used to indicate the start time of the time period, and the end parameter is used to indicate the end time of the time period. These two parameters can use 40 bits of mjd (Modified Julian Day, simplified Julian day) + utc (Universal Time Coordinated , Coordinated Universal Time) notation. If countflag is true, it means that advertisements need to be played when other digital content is consumed for the first few times, where the count parameter is used to indicate the number of times.

Other conditions can also be included in the DRMADHeader, which is similar to the <constraint> element in the license, including: time length, cycle time, cycle times, system restrictions, etc.

Forbiddenflag in DRMADHeader indicates whether there is a forbidden operation list. If this parameter is true, forbiddenOperation is used to define the forbidden operation.

In one embodiment, the processing flow for consuming media content in the DCF is shown in Figure 10, including:

Step 1001, the user operates the device to consume media content in the DCF, such as playing a movie.

Step 1002, the device detects the DCF, determines whether it contains information, and indicates that the DCF contains advertisement content, for example, detects whether DRMADHeader is included, and if it contains advertisements, execute step 1003; if not, execute step 1007.

Step 1003, the device detects relevant information in the DCF, and judges whether the advertisement needs to be operated. For example, if the datetimeflag indication in the DRMADHeader is true, the device detects whether the current time is within the specified time period. If yes, the advertisement needs to be operated. operate. If the advertisement needs to be operated, execute step 1004; if the advertisement does not need to be operated, execute step 1007.

Step 1004, the device operates on the advertisement.

Step 1005, determine whether the operation on the advertisement is successful, for example, if the DRMADHeader contains adurl, the device needs to obtain the advertisement content from this address, and if the acquisition fails, determine that the operation on the advertisement has failed. If the operation on the advertisement fails, execute step 1006; if the operation succeeds, execute step 1007.

Step 1006, the device rejects the user's operation on the media content, and ends the process.

Step 1007, the device executes operations on the media content.

Based on the same inventive concept, an embodiment of the present invention also provides a communication device. The structure of the communication device is shown in FIG. Module 1104; a first acquiring module 1101, configured to acquire digital content; a second acquiring module 1102, configured to acquire first information, where the first information includes first indication information and a first condition, wherein the first indication information includes indication The second operation needs to be performed before the first operation on the digital content, and the first condition is the condition that the second operation needs to be performed; the first determination module 1103 is used to determine whether the first condition is satisfied; the first operation module 1104 is used to When the first condition is met, the indication of the first indication information is executed; when the first condition is not met, the first operation is directly performed.

Referring to FIG. 11b, the communication device shown in FIG. 11a may further include a second determining module 1105, configured to further determine whether to allow the first operation according to the second indication information when the second operation cannot be completed, wherein the second Instruction information is included in the first information, including indicating whether to allow the first operation when the second operation cannot be completed; at this time, the first operation module 1104 is further configured to perform the first operation when it is determined that the first operation is allowed .

Referring to Figure 11c, in the communication device shown in Figure 11a, the first acquisition module 1101 may include a first acquisition unit 1106 and a second acquisition unit 1107; the first acquisition unit 1106 is used to acquire the first content; The unit 1107 is used to obtain the second content; at this time, the first operation module 1104 may include a first operation unit 1108 and a second operation unit 1109; the first operation unit 1108 is used to perform the first operation when the first condition is met Operate the second content before operating the content; the second operation unit 1109 is configured to directly operate the second content when the first condition is not satisfied.

Referring to FIG. 11d, the communication device shown in FIG. 11c may further include a third determination module 1110, configured to further determine, according to the first information, that the operation to be performed on the second content is not prohibited after determining that the first condition is met. operations, wherein the first information further includes information prohibiting operations on the second content.

Based on the same inventive concept, an embodiment of the present invention also provides a communication device, the structure of which is shown in Figure 12, including a first acquisition module 1101, a third acquisition module 1201, a second operation module 1202, Module 1203; a first obtaining module 1101, configured to obtain digital content; a third obtaining module 1201, configured to obtain second information, where the second information includes first indication information and second indication information, wherein the first indication information includes Indicate that the second operation needs to be performed before the first operation on the digital content, and the second indication information includes indicating whether to allow the first operation when the second operation cannot be completed; the second operation module 1202 is used to execute the indication of the first indication information and, for performing the first operation when it is determined that the first operation is allowed; the second determining module 1203 is for further determining whether to allow the first operation according to the second indication information when the second operation cannot be completed.

Based on the same inventive concept, an embodiment of the present invention also provides a communication device. The structure of the communication device is shown in FIG. Module 1303; wherein, the first obtaining module 1101 is used to obtain digital content; the fourth obtaining module 1301 is used to obtain third information, and the third information includes information prohibiting operations on digital content; the fourth determination module 1302 , used to determine whether the operation to be performed on the digital content is a prohibited operation according to the third information; the third operation module 1303 is used to determine whether the operation to be performed on the digital content is an operation that is not prohibited. Do this.

Those skilled in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, Disk or CD, etc.

In the embodiment of the present invention, when the first condition is met, the second operation is performed on the digital content before the first operation; when the first condition is not met, the first operation can be directly performed on the digital content; when the second operation cannot be completed , the first operation can be performed when the first operation is allowed according to the indication of the second indication information; therefore, it is not required to perform the second operation before performing the first operation on the digital content, which improves the digital content. Flexibility in processing, for example, advertisers can flexibly define when an advertisement needs to be played, and allow users to skip the advertisement when the advertisement cannot be played, thus supporting a variety of business models for advertising; on the other hand, Before operating the digital content, judge whether the operation to be performed on the digital content is a prohibited operation according to the third information, and when it is determined that the operation is not prohibited, perform the operation on the digital content, thereby introducing Restrictions on the operation of digital content, for example, advertisers can limit the user's processing of advertising content, thereby ensuring the interests of merchants who place advertisements; in summary, using the method of the embodiment of the present invention can realize the The processing method is controlled.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (14)

1. A processing method for digital content, characterized in that the method comprises: acquiring digital content, the digital content comprising first content and second content; Acquire first information, where the first information includes first indication information and a first condition, wherein the first indication information includes an indication that a second operation needs to be performed before performing the first operation on the digital content, and the first A condition is a condition that requires a second operation, wherein performing the first operation on the digital content is operating on the first content, and performing the second operation on the digital content is operating on the second content; Determining that the first condition is met, then execute the indication of the first indication information; If it is determined that the first condition is not met, the first operation is directly performed. 2. The method according to claim 1, wherein the first condition includes one or any combination of the number of times, time period, duration, and cycle that the second operation needs to be performed. 3. The method according to claim 1, wherein the operation on the second content includes one of playing, displaying, updating or any combination thereof. 4. The method according to claim 1, wherein the first information further includes second indication information, and the second indication information includes indicating whether to allow the first operation when the second operation cannot be completed; The instruction to execute the first instruction information is specifically: If the second operation cannot be completed, it is judged according to the second indication information whether to allow the first operation, and when it is determined that the first operation is allowed, the first operation is performed. 5. The method according to claim 1, wherein the first information further includes information prohibiting operations on the second content; the method further comprises: After it is determined that the first condition is satisfied, it is further determined according to the first information that the operation to be performed on the second content is not prohibited. 6. The method according to claim 5, wherein the prohibited operations include fast forward, fast rewind, stop, skip to the previous segment, skip to the next segment, free positioning or any combination thereof. 7. The method according to any one of claims 1 to 6, wherein the first information is carried in a license corresponding to the digital content; or, the first information is carried in the digital content. 8. A processing method for digital content, characterized in that the method comprises: acquiring digital content, the digital content comprising first content and second content; Acquiring second information, where the second information includes first indication information and second indication information, wherein the first indication information includes an indication that a second operation needs to be performed before performing the first operation on the digital content, the The second indication information includes indicating whether to allow the first operation when the second operation cannot be completed, wherein performing the first operation on the digital content is operating on the first content, and performing the second operation on the digital content is operating on the digital content Operate the second content; Executing the indication of the first indication information, and performing the first operation when it is further determined according to the second indication information that the first operation is allowed when the second operation cannot be completed. 9. The method according to claim 8, wherein the operation on the second content includes one of playing, displaying, updating or any combination thereof. 10. The method according to claim 8 or 9, wherein the second information is carried in a license corresponding to the digital content; or, the second information is carried in the digital content. 11. A communication device, characterized in that it comprises: A first acquiring module, configured to acquire digital content; wherein, the first acquiring module includes: a first acquiring unit, configured to acquire first content; a second acquiring unit, configured to acquire second content; The second acquiring module is configured to acquire first information, where the first information includes first indication information and a first condition, wherein the first indication information includes an indication that a first operation needs to be performed on the digital content before performing the first operation. The second operation, the first condition is a condition that requires the second operation; A first determining module, configured to determine whether the first condition is met; The first operation module is configured to execute the indication of the first instruction information when the first condition is met; directly perform the first operation when the first condition is not met; wherein the first operation module includes: The first operation unit is configured to operate on the second content before operating the first content when the first condition is met; the second operation unit is configured to directly operate on the first content when the first condition is not satisfied The second content operates. 12. The device of claim 11, further comprising: The second determination module is used for further judging whether to allow the first operation according to the second indication information when the second operation cannot be completed, wherein the second indication information is included in the first information, including the Whether to allow the first operation when the second operation cannot be completed; The first operation module is further configured to perform the first operation when it is determined that the first operation is allowed. 13. The device of claim 11, further comprising: The third determination module is configured to further determine, according to the first information, that the operation to be performed on the second content is not a prohibited operation after determining that the first condition is satisfied, wherein the first information also includes prohibiting operations on the second content. 2. Information about the operation performed by the content. 14. A communication device, characterized in that it comprises: A first acquiring module, configured to acquire digital content, where the digital content includes first content and second content; The third acquiring module is configured to acquire second information, the second information includes first indication information and second indication information, wherein the first indication information includes an indication that the digital content needs to be performed before the first operation is performed. The second operation, the second indication information includes indicating whether to allow the first operation when the second operation cannot be completed, wherein performing the first operation on the digital content is operating on the first content, and performing the first operation on the digital content The second operation is to operate on the second content; The second operation module is configured to execute the indication of the first indication information; and is configured to perform the first operation when it is determined that the first operation is allowed; The second determining module is configured to further determine whether to allow the first operation according to the second indication information when the second operation cannot be completed.