CN108449637A - A kind of system control method based on linux system - Google Patents
A kind of system control method based on linux system Download PDFInfo
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- CN108449637A CN108449637A CN201810130226.1A CN201810130226A CN108449637A CN 108449637 A CN108449637 A CN 108449637A CN 201810130226 A CN201810130226 A CN 201810130226A CN 108449637 A CN108449637 A CN 108449637A
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- configuration
- system control
- certification
- smart machine
- control module
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
One's duty invention provides a kind of system control method based on linux system, is applied to the smart machine with video playing assembly function, including following steps：Step S1, the described smart machine loads the system control module after starting up, so that the video playing component of the smart machine is in and waits for configuration status；Step S2, the described smart machine obtains the configuration parameter for including in described instruction after obtaining described instruction；Step S3, the configuration submodule in the described system control module is respectively completed resolution ratio, the authenticated configuration of colour gamut and high-bandwidth digital content protection to the video playing component according to the configuration parameter.The advantageous effect of its technical solution is, easy to operate, have preferable transplantability and durability without carry out complicated switching between each function and control module, it can be achieved that configuration to video playing component different function in same control module.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of system control methods based on linux system.
Background technology
With the continuous development of information technology, the function of smart machine such as smart television is also constantly enriched, instantly
The 4K display technologies of smart television are increasingly pursued by user, and the major advantage of 4K television sets is the screen for having ultra high-definition
Curtain resolution ratio, wide colour gamut, high dynamic range, high refresh rate etc., and HDCP (HDCP, the High- that smart television is supported
Bandwidth Digital Content Protection, high-bandwidth digital content protection technology.) it is also to realize that 4K's is important
Technology.
When being configured in the prior art to above-mentioned function, typically the application layer of smart television operating system into
Row exploitation to form corresponding application module, by different application modules to the different function of the video playing component of equipment into
The corresponding control of row, the mode realized such as, pass through the write-in node in the system of smart television or the relevant script of editor
File.
But above-mentioned method has the following defects, and when being configured to the different functions of video playing component, needs
It by complicated switching, and needs that a large amount of node is written, operation is excessively complicated, calls each standard disunity of script, therefore foot
The shortcomings that this document, is do not have durability and transplantability.
Invention content
For the above problem existing for video playing component is configured in the prior art, one kind is now provided and is intended to same control mould
In block, the configuration to video playing component different function, switching easy to operate, without carrying out complexity between each function are realized
And with preferable transplantability system control method.
Specific technical solution is as follows：
A kind of system control method based on linux system is applied to the smart machine with video playing assembly function,
Wherein, a linux system file is provided, one system control module of configuration formation in the linux system file；
The system control module, which is loaded when the smart machine is switched on by the linux system, to be started, the system
Control module includes multiple configuration submodules configured to video playing component；
An exterior arrangement equipment is provided, the exterior arrangement equipment is set by the serial ports of the smart machine with the intelligence
Standby connection, the exterior arrangement equipment includes the instruction of multiple configuration parameters to form one, and described instruction is exported to institute
State smart machine；
The system control method includes the following steps：
Step S1, the described smart machine loads the system control module after starting up, makes the smart machine
Video playing component, which is in, waits for configuration status；
Step S2, the described smart machine obtains the configuration parameter for including in described instruction after obtaining described instruction；
Step S3, the configuration submodule in the described system control module is respectively completed pair according to the configuration parameter
The resolution ratio of the video playing component, the authenticated configuration of colour gamut and high-bandwidth digital content protection.
Preferably, the system control module provides a resolution ratio and configures submodule；
The video playing component includes display, and the configuration parameter includes matching to the resolution ratio of the display
The configuration parameter set；
The resolution ratio configuration submodule executes the resolution ratio to the display according to the configuration parameter of the resolution ratio
Configuration.
Preferably, the system control module provides configuration of territory submodule of the same colour；
The video playing component includes display, and the configuration parameter includes matching to the color gamut value of the display
The configuration parameter set, the colour gamut configure submodule to be executed to the display according to the configuration parameter of the color gamut value
The configuration of color gamut value.
Preferably, the system control module provides the configuration submodule of a high-bandwidth digital content protection；
The video playing component includes video signal transmission interface, and the video signal transmission interface by one regarding
Frequency transmission line is connect with a terminal device；
The configuration submodule of the high-bandwidth digital content protection provides two kinds of certification versions, and the configuration parameter includes matching
The selection parameter of the certification version is set, the smart machine establishes connection in terminal device by the video transmission line
Afterwards, the configuration submodule of the high-bandwidth digital content protection selects the corresponding certification version to hold according to the selection parameter
The configuration certification of the capable high-bandwidth digital content protection between the terminal device.
Preferably, the configuration submodule of the high-bandwidth digital content protection selects the method for the certification version as follows：
Step A1, the described smart machine judges whether two kinds of certification versions are available；
If so, executing step A2；
If it is not, one of them available described certification version is selected to complete the high bandwidth number between the terminal device
The configuration certification of content protecting, and exit；
Step A2, selected between two kinds of certification versions the highest certification version of a version and the terminal device it
Between carry out high-bandwidth digital content protection configuration certification, and judge configure certification whether succeed；
If so, configuration certification is successfully exited；
If not, executing step A3；
Step A3, the configuration submodule of the described high-bandwidth digital content protection select the certification version of another lowest version with
The configuration certification of high-bandwidth digital content protection is carried out between the terminal device.
Preferably, the video signal transmission interface is HDMI interface, and the video transmission line is HDMI data lines.
Preferably, the system control module provides a hot plug detection module；
The hot plug detection module, to detect the plug shape for the video signal transmission interface for being inserted into the smart machine
State；
And the system control module is called according to the plug state of the video signal transmission interface, so that the video is broadcast
It puts component and is in waiting configuration status.
Preferably, the system control module provides a standby wakeup module；
The standby wakeup module is to detect the configuration status of the certification version, and according to the change of the configuration status
The system control module is called while changing the smart machine for waking up and being in standby, makes the video playing component
In waiting configuration status.
Preferably, smart machine is the smart television based on (SuSE) Linux OS.
Above-mentioned technical proposal has the following advantages that or advantageous effect：In same control module, it can be achieved that video playing
The configuration of component different function, it is easy to operate, have without carry out complicated switching between each function and control module
Preferable transplantability and durability.
Description of the drawings
With reference to appended attached drawing, more fully to describe the embodiment of the present invention.However, appended attached drawing be merely to illustrate and
It illustrates, and is not meant to limit the scope of the invention.
Fig. 1 is a kind of flow chart of the embodiment of the system control method based on linux system of the present invention；
Fig. 2 is to be selected about smart machine in a kind of embodiment of the system control method based on linux system of the present invention
The flow chart of certification version.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
Technical scheme of the present invention includes a kind of system control method based on linux system.
As shown in Figure 1, a kind of embodiment of the system control method based on linux system, is applied to have video playing
The smart machine of assembly function, wherein provide a linux system file, one system of configuration formation controls mould in system file
Block；
System control module, which is loaded when smart machine is switched on by linux system, to be started, and system control module includes multiple
The configuration submodule that video playing component is configured；
An exterior arrangement equipment is provided, exterior arrangement equipment is connect by the serial ports of smart machine with smart machine, external
Configuration equipment includes the instruction of multiple configuration parameters to form one, and instruction is exported to smart machine；
As shown in Figure 1, system control method includes the following steps：
Step S1, smart machine is after starting up, loading system control module, makes the video playing component of smart machine
In waiting configuration status；
Step S2, smart machine is after acquisition instruction, the configuration parameter for including in acquisition instruction；
Step S3, the configuration submodule in system control module is respectively completed according to configuration parameter to video playing component
Resolution ratio, the authenticated configuration of colour gamut and high-bandwidth digital content protection.
It is existing when the correlation function of the video playing component to smart machine configures in the prior art
The configuration of each function module is needed by complicated switching, and is realizing that the when of configuring needs that a large amount of node, operation ten is written
Point inconvenience, the mode additionally by script configuration there is each standard disunity of script is called, there is script durability and
The poor problem of transplantability.
In the present invention, by the way that control module to be configured in linux system file, linux system file is (.mk texts
Part), it can so be loaded control module as startup item when the system of smart machine starts；
After start-up, control module makes video playing component be in waiting configuration status to smart machine, in smart machine
When obtaining the instruction comprising multiple configuration parameters of external equipment transmission, according to the configuration parameter in the instruction respectively to video
The resolution ratio of player module, the authenticated configuration of colour gamut and high-bandwidth digital content protection.
It should be noted that above-mentioned linux system may be selected to be the version of linux kernel 4.9.
In a kind of preferably embodiment, system control module provides a resolution ratio and configures submodule；
Video playing component includes display, and configuration parameter includes the configuration ginseng configured to the resolution ratio of display
Number；
Resolution ratio configures configuration of the submodule according to the execution of the configuration parameter of resolution ratio to the resolution ratio of display.
In above-mentioned technical proposal, after smart machine starts, resolution ratio configuration submodule passes through calling interface
(setSourceOutputMode ()) configures the output resolution ratio of display；
It should be noted that display generally includes a default resolution, the resolution ratio of display is not being configured
When, display usually shows default resolution.
In a kind of preferably embodiment, system control module provides configuration of territory submodule of the same colour；
Video playing component includes display, and configuration parameter includes the configuration ginseng configured to the color gamut value of display
Number, colour gamut configure submodule to execute the configuration to the color gamut value of display according to the configuration parameter of color gamut value.
In above-mentioned technical proposal, after control module is loaded, colour gamut configures submodule and is joined according to the configuration of color gamut value
Number, configures the color gamut value of display by calling interface (updateDeepColor ()).
In a kind of preferably embodiment, system control module provides the configuration submodule of a high-bandwidth digital content protection
Block；
Video playing component includes video signal transmission interface, and video signal transmission interface is passing through a video transmission line
It is connect with a terminal device；
The configuration submodule of high-bandwidth digital content protection provides two kinds of certification versions, and configuration parameter includes configuration certification version
This selection parameter, smart machine is after terminal device establishes connection by video transmission line, high-bandwidth digital content protection
Configuration submodule select corresponding certification version to execute the high-bandwidth digital content between terminal device according to selection parameter
The configuration certification of protection.
As shown in Fig. 2, in a kind of preferably embodiment, the configuration submodule of high-bandwidth digital content protection selects certification
The method of version is as follows：
Step A1, smart machine judges whether two kinds of certification versions are available；
If so, executing step A2；
If it is not, one of them available certification version is selected to complete the high-bandwidth digital content protection between terminal device
Configuration certification, and exit；
Step A2, it selects to carry out between the highest certification version of a version and terminal device between two kinds of certification versions high
The configuration certification of bandwidth digital contents protection, and judge to configure whether certification succeeds；
If so, configuration certification is successfully exited；
If not, executing step A3；
Step A3, the configuration submodule of high-bandwidth digital content protection selects the certification version and terminal device of another lowest version
Between carry out high-bandwidth digital content protection configuration certification.
In above-mentioned technical proposal, before starting high-bandwidth digital content protection (HDCP), HDCP is first closed.
The Key supported according to Rx (receiving terminal of smart machine) the HDCP versions supported and Tx (transmitting terminal of terminal device)
Which HDCP version determined to start.
In above-mentioned technical proposal, the transmitting terminal of terminal device passes through one key pair video counts of selection in transmitting video data
According to being encrypted, and by the receiving terminal of encrypted video data transmission to smart machine, the receiving terminal of smart machine is regarded in reception
Frequency is decrypted after using the video data of key pair encryption corresponding with transmitting terminal, if successful decryption passes through video playing
Component correctly plays video data, thus receiving terminal and transmitting terminal must select same HDCP versions be encrypted or
The corresponding decryption of person.
If HDCP 1.4 and HDCP 2.2 are supported, first start HDCP2.2, if 2.2 authentification failures of HDCP, then
Start HDCP 1.4.
Wherein, the startup and stopping of HDCP 1.4, all by write node it is achieved that HDCP 2.2 startup and stopping
Node is not only write, also to start and stop hdcp_tx2.2 processes to realize, hdcp_tx22 is the bin texts that third party provides
Part needs running always from the background, it can first load ESM firmware firmware.le, restart certification.
It, can be by checking node to determine whether certification success, recognizes if it is 1 explanation when confirming whether certification is successful
It demonstrate,proves successfully, 0 authentification failure.
In a kind of preferably embodiment, video signal transmission interface is HDMI interface, and video transmission line is HDMI numbers
According to line.
In a kind of preferably embodiment, system control module provides a hot plug detection module；
Hot plug detection module, to detect the plug state for the video signal transmission interface for being inserted into smart machine；
And according to the plug state calling system control module of video signal transmission interface, video playing component is made to be in etc.
State to be configured.
In above-mentioned technical proposal, the hot plug module (hot-plug) and standby wakeup module of HDMI are by monitoring HDCP
Version switches and the state of HDMI interface plug is realized.
When the state change for listening to the switching of HDCP versions and HDMI interface plug, onTxEvent () method can be called,
SetSourceDisplay () method is recalled in onTxEvent () method to can be configured to video playing component.
In a kind of preferably embodiment, system control module provides a standby wakeup module；
Standby wakeup module wakes up to be in and wait for detect the configuration status of certification version according to the variation of configuration status
Calling system control module while the smart machine of machine state makes video playing component be in and waits for configuration status.
In a kind of preferably embodiment, smart machine is the smart television based on (SuSE) Linux OS.
In a particular embodiment, system control module is added in linux system file (.mk files) first,
Then the control system module defined in linux system file, control system module include multiple configuration submodules, e.g., are differentiated
Rate configures the configuration submodule of submodule, colour gamut configuration submodule and high-bandwidth digital content protection；
Then it is that each submodule defines environmental variance in linux system file, smart machine passes through HDMI data lines
Incoming video signal coffret is connect with terminal device；
Exterior arrangement equipment is connect by serial ports with smart machine, and after smart machine startup, exterior arrangement equipment is logical
Input configuration-direct is crossed, e.g., display_util 1080p60hz 444,8bit 2；
Wherein, first parameter 1080p60hz is the screen resolution to be switched；Second parameter 444,8bit is to cut
The color gamut value (deep color) changed, third parameter 2 are the certification book to be switched (HDCP versions), and 1 indicates HDCP1.4,2
Indicate HDCP2.2.
Each configuration module in smart machine completes the video playing component to smart machine according to corresponding configuration parameter
Configuration.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (9)
1. a kind of system control method based on linux system is applied to the smart machine with video playing assembly function,
It is characterized in that, a linux system file is provided, one system control module of configuration formation in the linux system file；
The system control module, which is loaded when the smart machine is switched on by the linux system, to be started, the system control
Module includes multiple configuration submodules configured to video playing component；
An exterior arrangement equipment is provided, the exterior arrangement equipment is connected by the serial ports of the smart machine with the smart machine
It connects, the exterior arrangement equipment includes the instruction of multiple configuration parameters to form one, and described instruction is exported to the intelligence
It can equipment；
The system control method includes the following steps：
Step S1, the described smart machine loads the system control module after starting up, makes the video of the smart machine
Player module, which is in, waits for configuration status；
Step S2, the described smart machine obtains the configuration parameter for including in described instruction after obtaining described instruction；
Step S3, the configuration submodule in the described system control module is respectively completed according to the configuration parameter to described
The resolution ratio of video playing component, the authenticated configuration of colour gamut and high-bandwidth digital content protection.
2. system according to claim 1 control method, which is characterized in that the system control module provides a resolution ratio
Configure submodule；
The video playing component includes display, and the configuration parameter includes being configured to the resolution ratio of the display
Configure parameter；
The resolution ratio configuration submodule executes matching to the resolution ratio of the display according to the configuration parameter of the resolution ratio
It sets.
3. system according to claim 1 control method, which is characterized in that the system control module provides a colour gamut and matches
Set submodule；
The video playing component includes display, and the configuration parameter includes being configured to the color gamut value of the display
Parameter is configured, the colour gamut configuration submodule is to the colour gamut according to the execution of the configuration parameter of the color gamut value to the display
The configuration of value.
4. system according to claim 1 control method, which is characterized in that the system control module provides a high bandwidth
The configuration submodule of digital content protection；
The video playing component includes video signal transmission interface, the video signal transmission interface to pass through a video pass
Defeated line is connect with a terminal device；
The configuration submodule of the high-bandwidth digital content protection provides two kinds of certification versions, and the configuration parameter includes configuration institute
The selection parameter of certification version is stated, the smart machine is after terminal device establishes connection by the video transmission line, institute
State the configuration submodule of high-bandwidth digital content protection according to the corresponding certification version of selection parameter selection execute with
The configuration certification of high-bandwidth digital content protection between the terminal device.
5. system control method according to claim 4, which is characterized in that the configuration of the high-bandwidth digital content protection
Submodule selects the method for the certification version as follows：
Step A1, the described smart machine judges whether two kinds of certification versions are available；
If so, executing step A2；
If it is not, one of them available described certification version is selected to complete the high-bandwidth digital content between the terminal device
The configuration certification of protection, and exit；
Step A2, selected between two kinds of certification versions between the highest certification version of a version and the terminal device into
The configuration certification of row high-bandwidth digital content protection, and judge to configure whether certification succeeds；
If so, configuration certification is successfully exited；
If not, executing step A3；
Step A3, the configuration submodule of the described high-bandwidth digital content protection select the certification version of another lowest version with it is described
The configuration certification of high-bandwidth digital content protection is carried out between terminal device.
6. system control method according to claim 4, which is characterized in that the video signal transmission interface connects for HDMI
Mouthful, the video transmission line is HDMI data lines.
7. system control method according to claim 4, which is characterized in that the system control module provides a hot plug
Detection module；
The hot plug detection module, to detect the plug state for the video signal transmission interface for being inserted into the smart machine；
And the system control module is called according to the plug state of the video signal transmission interface, make the video playing group
Part, which is in, waits for configuration status.
8. system according to claim 1 control method, which is characterized in that the system control module offer one is standby to call out
Awake module；
The standby wakeup module is called out to detect the configuration status of the certification version according to the variation of the configuration status
The system control module is called while the awake smart machine being in standby, the video playing component is made to be in
Wait for configuration status.
9. system according to claim 1 control method, which is characterized in that the smart machine is to be operated based on Linux
The smart television of system.
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