CN106534852A - Decoding method and apparatus of decoding card - Google Patents
Decoding method and apparatus of decoding card Download PDFInfo
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- CN106534852A CN106534852A CN201611034854.7A CN201611034854A CN106534852A CN 106534852 A CN106534852 A CN 106534852A CN 201611034854 A CN201611034854 A CN 201611034854A CN 106534852 A CN106534852 A CN 106534852A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/127—Prioritisation of hardware or computational resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
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- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a decoding method and apparatus of a decoding card. The decoding method and apparatus is applied to the decoding card. The method comprises the following steps: obtaining a state signal of each video output interface of the decoding card corresponding to a displayer; judging whether a displayer connected with the video output interface and in an open state exists according to each state signal; if not, entering an power saving mode; and otherwise, performing a decoding operation on received video code streams. In the decoding method and apparatus disclosed by the embodiment of the invention, the decoding card obtains the state signal of each video output interface of the decoding card corresponding to the displayer, judges whether the displayer connected with the video output interface and in the open state exists, and if not, enters the power saving mode, so the waste of electric energy generated by the decoding card can be effectively reduced, and in addition, as the decoding card is mounted on a master control device, after the decoding card enters the power saving mode, the master control device can unload the resources occupied by the decoding card, thereby further saving the resources of the master control device and reducing the power consumption of the master control device.
Description
Technical field
The present invention relates to video decoding techniques field, more particularly to a kind of coding/decoding method and device of decoding card.
Background technology
With the popularization of Video Supervision Technique, video monitoring has had been applied to the every aspect of our lives, in order to right
Monitor video is watched, and typically monitor video is decoded by video decoding apparatus, and by with video decoding apparatus
The display of connection shows.
Video decoding apparatus decode card, can be attached with one or more displays simultaneously, and existing decoding is stuck in
When operation, when which receives the video code flow of main control device transmission, the video code flow is decoded, and main control device
Video code flow can be sent to decoding card endlessly.When if the display being connected with the decoding card is had been switched off, decoding card
Even if decoding operate has been carried out to video code flow, decoded video code flow can not be shown, therefore in this case
Decoding operate is carried out, can cause on the contrary to decode significant wastage of the card to electric energy.
The content of the invention
The coding/decoding method and device of a kind of decoding card provided in an embodiment of the present invention, to solve prior art decoding card
Problem in decoding process to waste of energy.
To reach above-mentioned purpose, the embodiment of the invention discloses a kind of decode the coding/decoding method for blocking, the method includes：
Obtain itself each video output interface status signal corresponding with display；
According to each status signal, judge whether to be connected with video output interface and in the aobvious of opening
Show device；
If it does not, entering power and energy saving pattern；
Otherwise, the video code flow to receiving carries out decoding operate.
Further, when decoding is sticked into is advanced into power and energy saving pattern, methods described also includes：
Itself information into power and energy saving pattern is sent to into main control device, makes main control device stop to itself sending regarding
Frequency code stream.
Further, described itself each video output interface of acquisition status signal corresponding with display includes：
Obtain the hot plug HOTPLUG signals of each video output interface of itself；And/or,
Obtain the HDMI HDMI data-signals of the display of itself each video output interface connection.
Further, it is when the status signal is HOTPLUG signals, described according to each status signal, judge
Display with the presence or absence of being connected with video output interface and in opening is included：
For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged；
When each HOTPLUG signal is low, judge not existing to be connected with video output interface and be in opening
Display.
Further, it is when the status signal is HDMI data-signals, described according to each status signal, judge
Display with the presence or absence of being connected with video output interface and in opening is included：
Whether the level magnitudes of the HDMI data-signals of the display that judgement is connected with itself each video output interface are big
In given threshold；
When the level magnitudes of each HDMI data-signal are not more than given threshold, then judge not exist to connect with video frequency output
Mouth is connected and in the display of opening.
Further, it is when the status signal includes HOTPLUG signals and HDMI data-signals, described according to each institute
Status signal is stated, is judged whether to be connected with video output interface and the display in opening is included：
For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged；
When high HOTPLUG signals are existed for, the display that judgement is connected with itself each video output interface
Whether the level magnitudes of HDMI data-signals are more than given threshold；
When the level magnitudes of each HDMI data-signal are not more than given threshold, then judge not exist to connect with video frequency output
Mouth is connected and in the display of opening.
Further, when decoding is sticked into is advanced into power and energy saving pattern, methods described also includes：
Obtain the HDMI HDMI data-signals of the display of itself each video output interface connection；
Judge whether HDMI data-signal of the level magnitudes more than given threshold；
If it does, exiting power and energy saving pattern.
Further, methods described also includes：
The information for itself exiting power and energy saving pattern is sent to into main control device, makes main control device recover to itself to send to regard
Frequency code stream.
The embodiment of the invention discloses a kind of decoding apparatus of decoding card, are applied to decoding card, the method includes：
Acquisition module, for obtaining itself each video output interface status signal corresponding with display；
Judge module, for according to each status signal, judging whether to be connected with video output interface and locating
In the display of opening；
Energy-saving module, for when the judged result of judge module is do not exist, into power and energy saving pattern；
Decoder module, in the presence of when the judged result of judge module being, the video code flow to receiving is decoded
Operation.
Further, described device also includes：
Notification module, the information for itself being entered or being exited power and energy saving pattern are sent to main control device, make master control
Equipment stops sending video code flow to itself.
Further, when decoding is sticked into is advanced into power and energy saving pattern, the acquisition module is additionally operable to acquisition itself every
The HDMI HDMI data-signals of the display of individual video output interface connection；
The judge module, is additionally operable to judge whether HDMI data-signal of the level magnitudes more than given threshold；
Described device also includes：
Module is exited, the judged result for judge module is the presence of the HDMI data letter that level magnitudes are more than given threshold
Number when, exit power and energy saving pattern.
The embodiment of the present invention provides a kind of coding/decoding method of decoding card, and the method includes：Obtain itself each video frequency output
Interface status signal corresponding with display；According to each status signal, judge whether and video output interface phase
Even and in the display of opening；If it does not, power and energy saving pattern is entered, if it does, to the video for receiving
Code stream carries out decoding operate.As in embodiments of the present invention, decoding card obtains itself each video output interface and display
Corresponding status signal, determines whether that display is connected with itself and in opening, if not entering power saving
Energy saver mode, therefore waste of the decoding card to electric energy can be effectively reduced, in addition because decoding card carry is on main control device,
Into after the pattern of power and energy saving, main control device can unload the shared resource of decoding card to decoding card, so as to further save
The resource of main control device, and save the power consumption of main control device.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of decoding process schematic diagram of decoding card provided in an embodiment of the present invention；
Fig. 2 is a kind of decoding process schematic diagram of decoding card provided in an embodiment of the present invention；
Fig. 3 is a kind of decoding process schematic diagram of decoding card provided in an embodiment of the present invention；
Fig. 4 is a kind of decoding apparatus structural representation of decoding card provided in an embodiment of the present invention.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only present invention some embodiments, rather than the enforcement of whole
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Embodiment 1：
Fig. 1 is a kind of decoding process schematic diagram of decoding card provided in an embodiment of the present invention, and concrete implementation method includes：
S101：Obtain itself each video output interface status signal corresponding with display.
A kind of coding/decoding method of decoding card provided in an embodiment of the present invention, is applied to decoding card, and the decoding card includes one
Or multiple video output interfaces that can be connected with display.
Specifically, in embodiments of the present invention, itself each video output interface of decoding card acquisition is corresponding with display
Status signal, the status signal can be identify the video output interface whether connect display status signal, or
Whether the display being connected with video output interface is in the status signal of opening.
Decoding card obtains the process of status signal and belongs to prior art, and in embodiments of the present invention the process is not gone to live in the household of one's in-laws on getting married
State.
S102：According to each status signal, judge whether to be connected and be in unlatching shape with video output interface
The display of state, if it does not exist, then carrying out S103, otherwise, carries out S104.
Specifically, when decoding card gets itself video output interface whether connects the first state signal of display,
According to the first state signal, judge whether each video output interface is connected with display, if each video output interface
All do not have connection display, then do not exist and be connected with video output interface and in the display of opening.
When decoding card gets the display that be connected with video output interface whether the second state letter in opening
Number when, according to the second status signal, judge whether the display in opening, if it does not exist, then do not exist with
Video output interface is connected and in the display of opening.
S103：Into power and energy saving pattern.
In embodiments of the present invention, when decoding card is not connected with display, or the display of decoding card connection in closing shape
During state, decoding card is into power and energy saving pattern.Specifically, when the not connected display of decoding card, or the display of decoding card connection
When being closed, decoding card the data for working before are stored in internal memory, power supply continue to for internal memory etc. it is most necessary
Equipment power, to guarantee that data are not lost, and decode card in other modules be in closed mode, now decode the power consumption of card
Amount is extremely low, and no longer carries out decoding operate, so can effectively reduce waste of the decoding card to electric energy.Once and decode card
When detecting the signal of the display that is accordingly connected with itself in opening, read data at once from internal memory and return to
Working condition before the pattern of power and energy saving.Decoding card belongs to into power and energy saving pattern with the method for exiting power and energy saving pattern
Prior art, is not repeated to the process in embodiments of the present invention.
Specifically, it is connected with video output interface and in the display of opening when not existing, decoding card is entered into
Power and energy saving pattern.
For example：Decoding card is currently connected with 2 displays, and 2 displays are detected all in closed mode, decoding card
There is no the display in opening, decoding card reduces power consumption into power and energy saving pattern.
S104：Video code flow to receiving carries out decoding operate.
Specifically, when presence is connected with video output interface and in the display of opening, decoding card is needed to carry out
Normal decoding operate, the video code flow that decoding card docking is received carry out decoding operate.
As in embodiments of the present invention, decoding card obtains itself each video output interface state corresponding with display
Signal, determines whether that display is connected with itself and in opening, if not entering power and energy saving pattern, because
This can effectively reduce waste of the decoding card to electric energy, and in addition because decoding card carry is on main control device, decoding card is entered
After the pattern of power and energy saving, main control device can unload the shared resource of decoding card, so as to further save main control device
Resource, and save the power consumption of main control device.
Embodiment 2：
In embodiments of the present invention in order to avoid main control device continues to the decoding card transmission into power and energy saving pattern to regard
Frequency code stream, causes the waste of main control device process resource, on the basis of above-described embodiment 1, works as solution in embodiments of the present invention
Code is sticked into when being advanced into power and energy saving pattern, and methods described also includes：
Itself information into power and energy saving pattern is sent to into main control device, makes main control device stop to itself sending regarding
Frequency code stream.
Specifically, itself information into power and energy saving pattern is sent to into after the pattern of power and energy saving by decoding card
Main control device, main control device receive decoding card into after the information of power and energy saving pattern, stop sending video codes to decoding card
Stream, so as to the resource of main control device can also be saved to a certain extent.
Embodiment 3：
In embodiments of the present invention, be directed to decoding card itself each video output interface and be connected with itself each
Display, it is on the basis of above-described embodiment 1, described to obtain itself each video output interface state letter corresponding with display
Number include：
Obtain the hot plug HOTPLUG signals of each video output interface of itself；And/or,
Obtain the HDMI HDMI data-signals of the display of itself each video output interface connection.
Specifically, during the status signal can be HOTPLUG signals and HDMI data-signals in embodiments of the present invention
Any one, or can also be two kinds.
In embodiments of the present invention, when there is no the display being connected with decoding card video output interface, necessarily will not
Presence is connected with video output interface and in the display of opening.On the basis of above-described embodiment 1, when the state
It is when signal is HOTPLUG signals, described according to each status signal, judge whether to be connected simultaneously with video output interface
Display in opening includes：
For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged；
When each HOTPLUG signal is low, judge not existing to be connected with video output interface and be in opening
Display.
Specifically, for each the HOTPLUG signal for obtaining, judge the height of each HOTPLUG signal, when each
When HOTPLUG signals are all low, there is no the display being connected with decoding card, further, be more not in and video frequency output
Interface connects and in the display of opening.By the height judgement to HOTPLUG signals it is in embodiments of the present invention
No have display to be connected with video output interface to belong to prior art, do not repeat this in embodiments of the present invention.
In embodiments of the present invention, when there is the display being connected with video output interface, need to judge the display
Whether opening is in, on the basis of above-described embodiment 1, when the status signal is HDMI data-signals, described
According to status signal each described, judge whether to be connected with video output interface and the display in opening includes：
Whether the level magnitudes of the HDMI data-signals of the display that judgement is connected with itself each video output interface are big
In given threshold；
When the level magnitudes of each HDMI data-signal are not more than given threshold, then judge not exist to connect with video frequency output
Mouth is connected and in the display of opening.
Specifically, according to HDMI specifications, when display is opened, the level magnitude of HDMI data-signals can quilt at display end
50 Ohmic resistances draw high 3.3V, and display when being closed the level magnitude of HDMI data-signals can be changed into 0V.It is logical
The level magnitudes of HDMI data-signals of the display for judging to be connected with itself each video output interface are crossed whether more than setting
Threshold value, the threshold value are debugged according to actual conditions and are set, as long as the threshold value can accurately distinguish the switch shape of display
State.When the level magnitude of each HDMI data-signal is no more than given threshold, judgement is not present and video output interface
It is connected and in the display of opening.In embodiments of the present invention by the level magnitude of HDMI data-signals, it is determined that aobvious
Show that the on off state of device belongs to prior art, in embodiments of the present invention the process is not repeated.
In embodiments of the present invention, in order to more accurately judge whether to be connected with video output interface and be in unlatching
The display of state, on the basis of above-described embodiment 1, when the status signal includes HOTPLUG signals and HDMI data letter
Number when, it is described according to each status signal, judge whether to be connected with video output interface and in opening
Display includes：
For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged；
When high HOTPLUG signals are existed for, the display that judgement is connected with itself each video output interface
Whether the level magnitudes of HDMI data-signals are more than given threshold；
When the level magnitudes of each HDMI data-signal are not more than given threshold, then judge not exist to connect with video frequency output
Mouth is connected and in the display of opening.
Specifically, for each video output interface by the height to each HOTPLUG signal judging whether
The display being connected with video output interface, when exist be connected with video output interface display when, by judge each with
Whether the level magnitudes of the HDMI data-signals of the display of itself video output interface connection are more than given threshold, when each
When the level magnitudes of HDMI data-signals are not more than given threshold, then do not exist and be connected and be in unlatching shape with video output interface
The display of state.
Fig. 2 is a kind of decoding process of decoding card provided in an embodiment of the present invention, and the flow process includes：
S201：Obtain itself each video output interface status signal corresponding with display.
S202：For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged, when not existing for height
HOTPLUG signals when, carry out S204, otherwise, carry out S203.
S203：Judge whether the electricity of the HDMI data-signals of the display being connected with itself each video output interface
Open width degree is more than given threshold；When not existing, S204 is carried out, otherwise carry out S205.
S204：Into power and energy saving pattern.
S205：Video code flow to receiving carries out decoding operate.
Embodiment 4：
In order to ensure to be connected with video output interface and during display in opening when existing, decoding blocks and can recover
Normal decoder works, and when decoding is sticked into is advanced into power and energy saving pattern, methods described also includes：
Obtain the HDMI HDMI data-signals of the display of itself each video output interface connection；
Judge whether HDMI data-signal of the level magnitudes more than given threshold；
If it does, exiting power and energy saving pattern.
Specifically, after decoding card enters into power and energy saving pattern, detect the presence of and be connected with itself and in unlatching shape
During the display of state, that is, exist level magnitudes more than given threshold HDMI data-signals when, decoding card exit power and energy saving mould
Formula, carries out normal decoding effort.
In order to ensure that decoding card exits being normally carried out for decoding effort after the pattern of power and energy saving, methods described also includes：
The information for itself exiting power and energy saving pattern is sent to into main control device, makes main control device recover to itself to send to regard
Frequency code stream.
Specifically, after decoding card exits power and energy saving pattern, the information for itself exiting power and energy saving pattern is sent to
Main control device, main control device are received after decoding the information that card exits power and energy saving pattern, are recovered to decoding card transmission video codes
Stream.
Fig. 3 is a kind of decoding process of decoding card provided in an embodiment of the present invention, and the flow process includes：
S301：Obtain itself each video output interface status signal corresponding with display.
S302：According to each status signal, judge whether to be connected and be in unlatching shape with video output interface
The display of state, if it does not, S303 is carried out, if it does, carrying out S307.
S303：Into power and energy saving pattern, and itself information into power and energy saving pattern is sent to into main control device.
S304：Obtain the HDMI HDMI data of the display of itself each video output interface connection
Signal.
S305：HDMI data-signal of the level magnitudes more than given threshold is judged whether, if it does, carrying out
S306, otherwise, keeps power and energy saving pattern constant.
S306：Power and energy saving pattern is exited, and the information for itself exiting power and energy saving pattern is sent to into main control device.
S307：Video code flow to receiving carries out decoding operate, and proceeds step S301.
Embodiment 5：
Fig. 4 is a kind of decoding apparatus structural representation of decoding card provided in an embodiment of the present invention, is applied to decoding card, should
Device includes：
Acquisition module 41, for obtaining itself each video output interface status signal corresponding with display；
Judge module 42, for according to each status signal, judging whether to be connected simultaneously with video output interface
In the display of opening；
Energy-saving module 43, for when the judged result of judge module is do not exist, into power and energy saving pattern；
Decoder module 44, in the presence of when the judged result of judge module being, the video code flow to receiving is solved
Code operation.
Described device also includes：
Notification module 46, is additionally operable to for itself information into power and energy saving pattern to be sent to main control device, sets master control
It is standby to stop sending video code flow to itself.
The acquisition module 41, the hot plug HOTPLUG signals specifically for obtaining each video output interface of itself；
And/or, obtain the HDMI HDMI data-signals of the display of itself each video output interface connection.
The judge module 42, specifically for each the HOTPLUG signal for obtaining, judges each HOTPLUG signal
Height；When each HOTPLUG signal is low, judge not existing to be connected with video output interface and in opening
Display.
The judge module 42, the HDMI numbers specifically for judging the display being connected with itself each video output interface
It is believed that number level magnitudes whether be more than given threshold；When the level magnitudes of each HDMI data-signal are not more than given threshold
When, then judge not existing and be connected with video output interface and in the display of opening.
The judge module 42, specifically for each the HOTPLUG signal for obtaining, judges each HOTPLUG signal
Height；When high HOTPLUG signals are existed for, the HDMI of the display that judgement is connected with itself each video output interface
Whether the level magnitudes of data-signal are more than given threshold；When the level magnitudes of each HDMI data-signal are not more than given threshold
When, then judge not existing and be connected with video output interface and in the display of opening.
The acquisition module 41, the fine definition for being additionally operable to obtain the display that itself each video output interface connects are more
Media interface HDMI data-signals；
The judge module 42, is additionally operable to judge whether HDMI data-signal of the level magnitudes more than given threshold；
Described device also includes
Module 45 is exited, the judged result for judge module is the presence of the HDMI data that level magnitudes are more than given threshold
During signal, power and energy saving pattern is exited.
The notification module 46, is additionally operable to for the information for itself exiting power and energy saving pattern to be sent to main control device, makes master
Control equipment recovers to send video code flow to itself.
The embodiment of the present invention provides a kind of coding/decoding method and device of decoding card, and the method includes：Each regards to obtain itself
Frequency output interface status signal corresponding with display；According to each status signal, judge whether and video frequency output
Interface is connected and in the display of opening；If it does not, entering power and energy saving pattern；Otherwise, to regarding for receiving
Frequency code stream carries out decoding operate.As in embodiments of the present invention, decoding card obtains itself each video output interface and shows
The corresponding status signal of device, determines whether that display is connected with itself and in opening, if do not enter saved
Electric energy saver mode, therefore waste of the decoding card to electric energy can be effectively reduced, in addition because decoding card carry is in main control device
On, into after the pattern of power and energy saving, main control device can unload the shared resource of decoding card to decoding card, so as to further save
The resource of main control device, and save the power consumption of main control device.
The present invention be with reference to method according to embodiments of the present invention, equipment (system), and computer program flow process
Figure and/or block diagram are describing.It should be understood that can be by computer program instructions flowchart and/or each stream in block diagram
The combination of journey and/or square frame and flow chart and/or flow process and/or square frame in block diagram.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of specifying in present one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to
Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or
The function of specifying in multiple square frames.
These computer program instructions can be also loaded in computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one
The step of function of specifying in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (11)
1. the coding/decoding method that a kind of decoding blocks, it is characterised in that be applied to decoding card, the method includes：
Obtain itself each video output interface status signal corresponding with display；
According to each status signal, judge whether to be connected with video output interface and in the display of opening
Device；
If it does not, entering power and energy saving pattern；
Otherwise, the video code flow to receiving carries out decoding operate.
2. the method for claim 1, it is characterised in that when decoding is sticked into is advanced into power and energy saving pattern, the side
Method also includes：
Itself information into power and energy saving pattern is sent to into main control device, makes main control device stop video codes being sent to itself
Stream.
3. the method for claim 1, it is characterised in that each video output interface of the acquisition itself and display pair
The status signal answered includes：
Obtain the hot plug HOTPLUG signals of each video output interface of itself；And/or,
Obtain the HDMI HDMI data-signals of the display of itself each video output interface connection.
4. method as claimed in claim 3, it is characterised in that when the status signal is HOTPLUG signals, the basis
Each described status signal, is judged whether to be connected with video output interface and the display in opening includes：
For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged；
When each HOTPLUG signal for it is low when, judgement is not existed and is connected with video output interface and in the aobvious of opening
Show device.
5. method as claimed in claim 3, it is characterised in that when the status signal is HDMI data-signals, described
According to status signal each described, judge whether to be connected with video output interface and the display in opening includes：
Whether the level magnitudes of the HDMI data-signals of the display that judgement is connected with itself each video output interface are more than sets
Determine threshold value；
When the level magnitudes of each HDMI data-signal are not more than given threshold, then judge do not exist and video output interface phase
Even and in the display of opening.
6. method as claimed in claim 3, it is characterised in that when the status signal includes HOTPLUG signals and HDMI numbers
It is believed that number when, it is described according to each status signal, judge whether to be connected with video output interface and be in unlatching shape
The display of state includes：
For each the HOTPLUG signal for obtaining, the height of each HOTPLUG signal is judged；
When high HOTPLUG signals are existed for, the HDMI numbers of the display that judgement is connected with itself each video output interface
It is believed that number level magnitudes whether be more than given threshold；
When the level magnitudes of each HDMI data-signal are not more than given threshold, then judge do not exist and video output interface phase
Even and in the display of opening.
7. the method for claim 1, it is characterised in that when decoding is sticked into is advanced into power and energy saving pattern, the side
Method also includes：
Obtain the HDMI HDMI data-signals of the display of itself each video output interface connection；
Judge whether HDMI data-signal of the level magnitudes more than given threshold；
If it does, exiting power and energy saving pattern.
8. method as claimed in claim 7, it is characterised in that methods described also includes：
The information for itself exiting power and energy saving pattern is sent to into main control device, makes main control device recover video codes to be sent to itself
Stream.
9. the decoding apparatus that a kind of decoding blocks, it is characterised in that be applied to decoding card, the method includes：
Acquisition module, for obtaining itself each video output interface status signal corresponding with display；
Judge module, for according to each status signal, judging whether to be connected and be in out with video output interface
Open the display of state；
Energy-saving module, for when the judged result of judge module is do not exist, into power and energy saving pattern；
Decoder module, in the presence of when the judged result of judge module being, the video code flow to receiving carries out decoding operate.
10. device as claimed in claim 9, it is characterised in that described device also includes：
Notification module, the information for itself being entered or being exited power and energy saving pattern are sent to main control device, make main control device
Stop sending video code flow to itself.
11. devices as claimed in claim 9, it is characterised in that when decoding is sticked into is advanced into power and energy saving pattern, described to obtain
Delivery block, is additionally operable to obtain the HDMI HDMI data of the display that itself each video output interface connects
Signal；
The judge module, is additionally operable to judge whether HDMI data-signal of the level magnitudes more than given threshold；
Described device also includes：
Module is exited, the judged result for judge module is the presence of the HDMI data-signals that level magnitudes are more than given threshold
When, exit power and energy saving pattern.
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| CN106534852B (en) | 2019-05-24 |
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