CN106658154A - Method, device and equipment for video capture, and method, device and equipment for video processing - Google Patents
Method, device and equipment for video capture, and method, device and equipment for video processing Download PDFInfo
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- CN106658154A CN106658154A CN201611102827.9A CN201611102827A CN106658154A CN 106658154 A CN106658154 A CN 106658154A CN 201611102827 A CN201611102827 A CN 201611102827A CN 106658154 A CN106658154 A CN 106658154A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 230000015654 memory Effects 0.000 claims description 45
- 230000008569 process Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 6
- 230000005055 memory storage Effects 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 12
- 238000004590 computer program Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- 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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a method, a device and equipment for video capture, and a method, a device and equipment for video processing. The video capture method comprises steps: key frames of the video are acquired; and the key frames are stored as a binary file. Steps of video decoding and jpeg encoding are omitted, and the CPU consumption is reduced.
Description
Technical field
The present invention relates to technical field of video processing, and in particular to a kind of video interception method, device and equipment and regard
Frequency processing method, device and equipment.
Background technology
Existing processing system for video, can all have a capture server to generate most basic processing unit-picture, lead to
Cross timing and initiate sectional drawing task, video data (data such as after H.264/H.265 compressing) is converted to into typically jpg lattice
The picture of formula, is then converted to the picture source file format such as YUV or RGB with pending by the picture of jpeg forms.This mode
Have video decoding (as H.264/H.265 decoded), jpeg to encode two and compare the process for consuming CPU.And in video data
When being stream medium data, need for the picture of jpeg forms to be converted to picture source file format by network transmission, due to JPEG
H.264/H.265 the efficiency of coding will be far below, so transmitted data amount is big, can the higher network bandwidth of accounting.
The content of the invention
In view of this, a kind of video interception method, device and equipment and Video processing side are embodiments provided
Method, device and equipment, to solve the problems, such as Video processing in CPU consume big and to take the network bandwidth high.
According in a first aspect, embodiments providing a kind of video interception method, it is adaptable to capture server, bag
Include：The key frame of video is obtained, the key frame is self-demarking code；The key frame is stored as into binary file；Send institute
State binary file.
Optionally, the step of key frame of the acquisition video includes：The key frame of video described in timing acquisition.
Optionally, the video is Streaming Media.
According to second aspect, a kind of method for processing video frequency is embodiments provided, it is adaptable to video processing service device,
Including：Receive binary file, the binary file is obtained by the key frame storage of video；By the binary file
Be converted to picture source file format.
Optionally, the picture source file format includes YUV or rgb format.
According to the third aspect, a kind of sectional drawing device is embodiments provided, including：Frame acquisition module, for obtaining
The key frame of video, the key frame is self-demarking code；Memory module, for the key for obtaining the frame acquisition module
Frame is stored as binary file；Sending module, for sending the binary file of the memory module storage.
Optionally, the video is Streaming Media.
According to fourth aspect, a kind of video process apparatus are embodiments provided, including：Receiver module, for connecing
Binary file is received, the binary file is obtained by the key frame storage of video；Modular converter, for by the reception
The binary file that module is received is converted to picture source file format.
According to the 5th aspect, a kind of video interception equipment is embodiments provided, including：At least one processor；
The memory being connected with least one processor communication；Wherein, have can be by one processor for the memory storage
The instruction of execution, the instruction by least one computing device so that at least one computing device first party
Video interception method described in the optional mode of any one of face or first aspect.
According to the 6th aspect, a kind of video processing equipment is embodiments provided, including：At least one processor；
The memory being connected with least one processor communication；Wherein, have can be by one processor for the memory storage
The instruction of execution, the instruction by least one computing device so that at least one computing device second party
Method for processing video frequency described in the optional mode of any one of face or second aspect.
According to the 7th aspect, a kind of non-transient computer readable storage medium storing program for executing is embodiments provided, it is described non-temporary
State computer-readable recording medium storage computer instruction, the computer instruction is used to make the computer perform first aspect
Or the video interception method described in any one optional mode of first aspect.
According to eighth aspect, a kind of non-transient computer readable storage medium storing program for executing is embodiments provided, it is described non-temporary
State computer-readable recording medium storage computer instruction, the computer instruction is used to make the computer perform second aspect
Or the method for processing video frequency described in any one optional mode of second aspect.
According to the 9th aspect, a kind of computer program, the computer program are embodiments provided
Including the calculation procedure being stored on non-transient computer readable storage medium storing program for executing, the computer program includes programmed instruction, when
Described program instruction is when being computer-executed, make the computer perform first aspect or first aspect any one is optional
Video interception method described in mode.
According to the tenth aspect, a kind of computer program, the computer program are embodiments provided
Including the calculation procedure being stored on non-transient computer readable storage medium storing program for executing, the computer program includes programmed instruction, when
Described program instruction is when being computer-executed, make the computer perform second aspect or second aspect any one is optional
Method for processing video frequency described in mode.
Video interception method, device and equipment that the embodiment of the present invention is provided, frequency processing method, device and equipment are non-
Transitory computer readable storage medium, and computer program, by the key frame to video rather than an arbitrary frame
Sectional drawing is carried out, because key frame is self-demarking code, the step of decoding so as to eliminate video, CPU consumption is reduced；By closing
Key frame is stored as the file of binary code file rather than jpeg forms, the step of eliminating jpeg and encode, reduces CPU and disappears
Consumption；Further, since the compression efficiency of binary code file is typically more than 3 times of jpeg file, therefore when reducing transmission
The network bandwidth of occupancy.
Description of the drawings
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematic and should not manage
Solution is to carry out any restriction to the present invention, in the accompanying drawings：
Fig. 1 shows the flow chart of video interception method according to embodiments of the present invention；
Fig. 2 shows the flow chart of method for processing video frequency according to another embodiment of the present invention；
Fig. 3 shows the schematic diagram of video interception device according to embodiments of the present invention；
Fig. 4 shows the schematic diagram of video process apparatus according to another embodiment of the present invention；
Fig. 5 shows the schematic diagram of video interception equipment according to embodiments of the present invention；
Fig. 6 shows the schematic diagram of video processing equipment according to another embodiment of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those skilled in the art are not having
Have and make the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the video interception method that one embodiment of the invention is provided, it is adaptable to capture server, such as Fig. 1
Shown, the method includes：
S11. the key frame (Key Frame) of video is obtained.Key frame refers to role equivalent to the original painting in 2 D animation
Or object of which movement or that frame residing for the key operations in change, the video content behind this frame have new change or
Transition, on a timeline this frame is with pore mark.Because key frame is in itself self-demarking code, therefore when extracting key frame
Server is not needed to carry out decoding operate.
S12. the key frame is stored as into binary file.Optionally, the suffix of the binary file entitled " .bin ", with
Show that it is binary system (binary) form.
S13. the binary file is sent, to carry out subsequent treatment.When external process devices are located at it is long-range when, in addition it is also necessary to it is logical
Cross network transmission to send the binary file.
The video interception method that the embodiment of the present invention is provided, by the key frame to video rather than an arbitrary frame enters
Row sectional drawing, because key frame is self-demarking code, the step of decoding so as to eliminate video, reduces CPU consumption；Additionally, passing through
Key frame is stored as into the file of binary code file rather than jpeg forms, the step of eliminating jpeg and encode, further
Reduce CPU consumption.
Optionally, in above-mentioned steps S11, the key frame of timing acquisition video.
Optionally, above-mentioned video can be Streaming Media.Streaming Media (Streaming Media) refers to a kind of transmission of media
Mode, in this transmission means, video (video segment one packet of correspondence) in the form of packet passes through video
Transmission server is sent on network, and terminal use is received after packet, and by decompressing these packets decompression acquisition phase is carried out
The video segment answered, as long as transmission of the packet on network is not interrupted, terminal use just can continuously watch video, thus
Realize and broadcast when seeing.It is because Streaming Media needs network transmission to realize therefore very sensitive for the network bandwidth.In this reality
In applying example, because the compression efficiency of binary code file is typically more than 3 times of jpeg file, therefore account for when reducing transmission
The network bandwidth.
Fig. 2 is the flow chart of the method for processing video frequency that one embodiment of the invention is provided, it is adaptable to video processing service device, such as
Shown in Fig. 2, the method includes：
S21. receive binary file, the binary file is obtained by the key frame storage of video.By entering with two
The jpeg files of file processed rather than routine are input, are the videos high to network bandwidth requirement such as Streaming Media especially in video
When, because the compression efficiency of binary file is higher, the requirement to the network bandwidth in transmission file processes can be effectively reduced.
S22. the binary file is converted to into picture source file format, to treat subsequent treatment.The picture source file format
Including but not limited to it is YUV or rgb format, corresponding decoding operate is taken according to specific form.Although there is still a need for decoding
Operation, but it is relatively conventional jpeg is converted to YUV or rgb format, the complexity of decoding decreases, so as to reduce system
The consumption of resource.
The method for processing video frequency that the embodiment of the present invention is provided, by with binary file rather than routine jpeg files
For input, the requirement to the network bandwidth in transmission file processes is reduced；Additionally, binary file is converted to into picture source file
Form, also occupying system resources more less than traditional conversion jpeg forms.
Fig. 3 is the schematic diagram of the video interception device that one embodiment of the invention is provided, as shown in figure 3, the device includes：
Frame acquisition module 31, for obtaining the key frame of video, the key frame is self-demarking code；
Memory module 32, for the key frame that the frame acquisition module is obtained to be stored as into binary file；
Sending module 33, for sending the binary file of the memory module storage.
The video interception device that the embodiment of the present invention is provided, by the key frame to video rather than an arbitrary frame enters
Row sectional drawing, because key frame is self-demarking code, the step of decoding so as to eliminate video, reduces CPU consumption；Additionally, passing through
Key frame is stored as into the file of binary code file rather than jpeg forms, the step of eliminating jpeg and encode, further
Reduce CPU consumption.
Optionally, the video is Streaming Media.
Fig. 4 is the schematic diagram of the video process apparatus that one embodiment of the invention is provided, as shown in figure 4, the device includes：
Receiver module 41, for receiving binary file, the binary file is obtained by the key frame storage of video；
The video is, for example, Streaming Media.
Modular converter 42, for the binary file that the receiver module is received to be converted to into picture source file format.The figure
Piece source file format is, for example, YUV or rgb format.
The video process apparatus that the embodiment of the present invention is provided, by with binary file rather than routine jpeg files
For input, the requirement to the network bandwidth in transmission file processes is reduced；Additionally, binary file is converted to into picture source file
Form, also occupying system resources more less than traditional conversion jpeg forms.
Fig. 5 is the hardware architecture diagram of the video interception equipment that one embodiment of the invention is provided, as shown in figure 5, this sets
It is standby to include one or more processors 51 and memory 52, in Fig. 5 by taking a processor 51 as an example.
Processor 51 and memory 52 can be connected by bus or other modes, being connected by bus 50 in Fig. 5
As a example by.
Processor 51 can be central processing unit (Central Processing Unit, CPU).Processor 51 can be with
For other general processors, digital signal processor (Digital Signal Processor, DSP), special IC
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
The chips such as discrete hardware components, or the combination of above-mentioned all kinds of chips.General processor can be microprocessor or the process
Device can also be any conventional processor etc..
Memory 52 can be used to storing non-transient software program, non-as a kind of non-transient computer readable storage medium storing program for executing
Corresponding programmed instruction/the mould of video interception method in transient computer executable program and module, such as the embodiment of the present application
Block (frame acquisition module 31 for example, shown in accompanying drawing 3, memory module 32 and sending module 33).Processor 51 is by running storage
Non-transient software program, instruction and module in memory 52, so as to the various function application and number of execute server
According to process, that is, the method for realizing above-mentioned video interception operation.
Memory 52 can include storing program area and storage data field, wherein, storing program area can storage program area,
Application program required at least one function；Storage data field can store the use of the processing meanss according to video interception operation
Data for being created etc..Additionally, memory 52 can include high-speed random access memory, non-transient storage can also be included
Device, for example, at least one disk memory, flush memory device or other non-transient solid-state memories.In certain embodiments,
Memory 52 is optional including relative to the remotely located memory of processor 51, and these remote memories can pass through network connection
To the processing meanss of video interception operation.The example of above-mentioned network include but is not limited to internet, intranet, LAN,
Mobile radio communication and combinations thereof.
The method that the executable embodiment of the present invention of the said goods is provided, possesses the corresponding functional module of execution method and has
Beneficial effect.Not ins and outs of detailed description in the present embodiment, the correlation that specifically can be found in embodiment as shown in Figure 1 is retouched
State.
Fig. 6 is the hardware architecture diagram of the video processing equipment that one embodiment of the invention is provided, as shown in fig. 6, this sets
It is standby to include one or more processors 61 and memory 62, in Fig. 6 by taking a processor 61 as an example.
Processor 61 and memory 62 can be connected by bus or other modes, being connected by bus 60 in Fig. 6
As a example by.
Processor 61 can be central processing unit (Central Processing Unit, CPU).Processor 61 can be with
For other general processors, digital signal processor (Digital Signal Processor, DSP), special IC
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
The chips such as discrete hardware components, or the combination of above-mentioned all kinds of chips.General processor can be microprocessor or the process
Device can also be any conventional processor etc..
Memory 62 can be used to storing non-transient software program, non-as a kind of non-transient computer readable storage medium storing program for executing
Corresponding programmed instruction/the mould of method for processing video frequency in transient computer executable program and module, such as the embodiment of the present application
Block (for example, the receiver module 41 and modular converter 42 shown in accompanying drawing 4).Processor 61 is stored in memory 62 by operation
Non-transient software program, instruction and module, the various function application and data processing so as to execute server realized
The method for stating video processing operation.
Memory 62 can include storing program area and storage data field, wherein, storing program area can storage program area,
Application program required at least one function；Storage data field can store the use of the processing meanss according to video processing operation
Data for being created etc..Additionally, memory 62 can include high-speed random access memory, non-transient storage can also be included
Device, for example, at least one disk memory, flush memory device or other non-transient solid-state memories.In certain embodiments,
Memory 62 is optional including relative to the remotely located memory of processor 61, and these remote memories can pass through network connection
To the processing meanss of video processing operation.The example of above-mentioned network include but is not limited to internet, intranet, LAN,
Mobile radio communication and combinations thereof.
The method that the executable embodiment of the present invention of the said goods is provided, possesses the corresponding functional module of execution method and has
Beneficial effect.Not ins and outs of detailed description in the present embodiment, the correlation that specifically can be found in embodiment as shown in Figure 2 is retouched
State.
The embodiment of the present invention additionally provides a kind of non-transient computer storage medium, and the computer-readable storage medium is stored with
Computer executable instructions, the computer executable instructions can perform the video interception operation in above-mentioned any means embodiment
Processing method.Wherein, the storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory, ROM),
Random access memory (Random Access Memory, RAM), flash memory (Flash Memory), hard disk (Hard
Disk Drive, abbreviation：) or solid state hard disc (Solid-State Drive, SSD) etc. HDD；The storage medium can also be wrapped
Include the combination of the memory of mentioned kind.
The embodiment of the present invention additionally provides a kind of non-transient computer storage medium, and the computer-readable storage medium is stored with
Computer executable instructions, the computer executable instructions can perform the video processing operation in above-mentioned any means embodiment
Processing method.Wherein, the storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory, ROM),
Random access memory (Random Access Memory, RAM), flash memory (Flash Memory), hard disk (Hard
Disk Drive, abbreviation：) or solid state hard disc (Solid-State Drive, SSD) etc. HDD；The storage medium can also be wrapped
Include the combination of the memory of mentioned kind.
Can be logical it will be understood by those skilled in the art that realizing all or part of flow process in above-described embodiment method
Computer program is crossed to instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (ROM) or random access memory (RAM) etc..
Although being described in conjunction with the accompanying embodiments of the invention, those skilled in the art can be without departing from the present invention
Spirit and scope in the case of various modification can be adapted and modification, such modification and modification are each fallen within by claims institute
Within the scope of restriction.
Claims (10)
1. a kind of video interception method, it is characterised in that include：
The key frame of video is obtained, the key frame is self-demarking code；
The key frame is stored as into binary file；
Send the binary file.
2. video interception method according to claim 1, it is characterised in that wrap the step of the key frame of the acquisition video
Include：The key frame of video described in timing acquisition.
3. video interception method according to claim 1 and 2, it is characterised in that the video is Streaming Media.
4. a kind of method for processing video frequency, it is characterised in that include：
Receive binary file, the binary file is obtained by the key frame storage of video；
The binary file is converted to into picture source file format.
5. method for processing video frequency according to claim 4, it is characterised in that the picture source file format include YUV or
Rgb format.
6. a kind of video interception device, it is characterised in that include：
Frame acquisition module, for obtaining the key frame of video, the key frame is self-demarking code；
Memory module, for the key frame that the frame acquisition module is obtained to be stored as into binary file；
Sending module, for sending the binary file of the memory module storage.
7. video interception device according to claim 6, it is characterised in that the video is Streaming Media.
8. a kind of video process apparatus, it is characterised in that include：
Receiver module, for receiving binary file, the binary file is obtained by the key frame storage of video；
Modular converter, for the binary file that the receiver module is received to be converted to into picture source file format.
9. a kind of video interception equipment, it is characterised in that include：
At least one processor；
The memory being connected with least one processor communication；
Wherein, have can be by the instruction of one computing device for the memory storage, and the instruction is by described at least one
Computing device, so that the video interception method any one of at least one computing device claim 1-3.
10. a kind of video processing equipment, it is characterised in that include：
At least one processor；
The memory being connected with least one processor communication；
Wherein, have can be by the instruction of one computing device for the memory storage, and the instruction is by described at least one
Computing device, so that the method for processing video frequency described at least one computing device claim 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102827.9A CN106658154A (en) | 2016-12-05 | 2016-12-05 | Method, device and equipment for video capture, and method, device and equipment for video processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102827.9A CN106658154A (en) | 2016-12-05 | 2016-12-05 | Method, device and equipment for video capture, and method, device and equipment for video processing |
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| Publication Number | Publication Date |
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| CN106658154A true CN106658154A (en) | 2017-05-10 |
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ID=58818542
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611102827.9A Pending CN106658154A (en) | 2016-12-05 | 2016-12-05 | Method, device and equipment for video capture, and method, device and equipment for video processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110505513A (en) * | 2019-08-15 | 2019-11-26 | 咪咕视讯科技有限公司 | Video screenshot method and device, electronic equipment and storage medium |
| CN110881140A (en) * | 2018-09-05 | 2020-03-13 | 北京高德云图科技有限公司 | Method and device for capturing picture from video, embedded device and storage medium |
-
2016
- 2016-12-05 CN CN201611102827.9A patent/CN106658154A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110881140A (en) * | 2018-09-05 | 2020-03-13 | 北京高德云图科技有限公司 | Method and device for capturing picture from video, embedded device and storage medium |
| CN110881140B (en) * | 2018-09-05 | 2022-01-21 | 北京高德云图科技有限公司 | Method and device for capturing picture from video, embedded device and storage medium |
| CN110505513A (en) * | 2019-08-15 | 2019-11-26 | 咪咕视讯科技有限公司 | Video screenshot method and device, electronic equipment and storage medium |
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Application publication date: 20170510 |