CN103455361B - Method for calling 32-bit decoding library under 64-bit operating system - Google Patents
Method for calling 32-bit decoding library under 64-bit operating system Download PDFInfo
- Publication number
- CN103455361B CN103455361B CN201310400814.XA CN201310400814A CN103455361B CN 103455361 B CN103455361 B CN 103455361B CN 201310400814 A CN201310400814 A CN 201310400814A CN 103455361 B CN103455361 B CN 103455361B
- Authority
- CN
- China
- Prior art keywords
- storehouses
- decoding
- encapsulation
- bit
- storehouse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 81
- 230000008569 process Effects 0.000 claims abstract description 55
- 238000005538 encapsulation Methods 0.000 claims abstract description 37
- 238000004891 communication Methods 0.000 claims abstract description 22
- 230000006870 function Effects 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- BYACHAOCSIPLCM-UHFFFAOYSA-N 2-[2-[bis(2-hydroxyethyl)amino]ethyl-(2-hydroxyethyl)amino]ethanol Chemical compound OCCN(CCO)CCN(CCO)CCO BYACHAOCSIPLCM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Stored Programmes (AREA)
- Computer And Data Communications (AREA)
Abstract
The invention discloses a method for calling a 32-bit decoding library under a 64-bit operating system. The method comprises the following steps: (1) calling a 64-bit encapsulation library by a 64-bit master control process, and crossing the process boundary in an inter-process communication mode to indirectly access the 32-bit decoding library; (2) directly writing original video data obtained by the 32-bit decoding library into a shared memory for the 64-bit encapsulation library to read. The method has the advantages that (1) the 32-bit decoding library is encapsulated into a corresponding 64-bit edition under the condition of no source code and has the same function interface definition and calling method as those of the decoding library of the original edition, (2) the resource overhead is increased by 20-30 percent compared with direct execution under the original 32-bit system through actual measurement, (3) the exchange of most of data can be performed in the memory by the master control process by using the 64 bit, and the method is suitable for the field of application of video analysis, and (4) the method can be realized on the same principle under the 64-bit Windows and 64-bit Linux.
Description
Technical field
The present invention relates to a kind of method calling 32 decoding storehouses under 64 bit manipulation systems, belong to digital information and pass
Defeated field.
Background technology
The great advantage of 64 bit manipulation systems, is to provide bigger memory address space, the single process of 32 systems
Maximum memory address space is 2GB, and this limits for some application programs that must process mass data, especially video
For analysis application, it appears particularly not enough.64 Windows operating systems provide WoW64 compatible layer so that 32 programs can
With directly in 64 bit manipulation system operations, although run by compatible layer in theory having some performance loss, actually
This difference can be ignored；Similar, 64 (SuSE) Linux OS only need to install corresponding 32 system libraries it is also possible to transport
32 programs of row.But, 64 programs are not supported for 32 modules to be loaded into the process space of oneself, conversely, 32 programs
Do not support for 64 modules to be loaded into the process space of oneself.
In order to call original 32 modules under 64 bit manipulation systems, prior art generally adopts below scheme：
1. existing primary control program and Depending module are all transplanted to 64 systems, this needs to recompilate, most of feelings
Source code also to be changed under condition, as long as this mode can reach optimal effect, but has any one Depending module no
Method is transplanted to 64, and host process just cannot run, and has some 32 decoding storehouses to be that third party provides, does not have source code, no
May recompilate as 64 dynamic base, the therefore suitability of the program is subject to larger restriction；
2. task is cut into less process, each process take internal memory be less than 2GB, host process pass through into
Between journey, communication sends instruction and obtains implementing result, and this requirement makes larger adjustment to existing Mechanism of Task Allocation, expansible
Property is also bad；
3. write the outer 32 COM service ends of a process under Windows to be communicated with 64 clients, but this
The mode of kind degraded performance when processing video data, 32 COM service ends also need to do extra open and close maintenance, also cannot
Common Linux video analytics server is run；
It is seen that, such scheme is not all suitable for video analysis, and this needs the application processing mass data interaction to lead
Domain.
Content of the invention
Proposed by the present invention is a kind of method calling 32 decoding storehouses under 64 bit manipulation systems, and its purpose purport effectively solves
The certainly drawbacks described above existing for prior art.Under 64 bit manipulation systems, efficiently call 32 decoding storehouses.
The technical solution of the present invention：A kind of call under 64 bit manipulation systems 32 decoding storehouses methods, comprise with
Lower step：
1）64 host process call one 64 encapsulation storehouses, cross over processing border, indirectly in the way of interprocess communication
Access 32 decoding storehouses functions；
2）In order to improve the access performance of big flow video data, the original video data that 32 decoding storehouses obtain directly is write
Enter in shared drive, read for 64 encapsulation storehouses.
Compared with prior art, the main distinction and its effect are the present invention：
1）In the case of there is no source code, 32 decoding storehouses can be packaged into the corresponding version of 64, have with former
The on all four function interface definition of version decoding storehouse and call method；
2）Still have high-performance through the decoding storehouse of encapsulation, through actual measurement, resource overhead is directly held than under former 32 systems
Row how 20-30%, but than other implementations easily more than 100% amplification had sizable progress；
3）Host process using 64 so that most of data exchange is carried out in internal memory, apply by suitable video analysis
Field；
4）Can be realized with identical principle under 64 Windows and 64 Linux.
Brief description
Fig. 1 is the flow chart of first embodiment of the invention.
Fig. 2 is the flow chart of second embodiment of the invention.
Fig. 3 is a kind of device structure schematic diagram calling 32 decoding storehouses under 64 bit manipulation systems.
Specific embodiment
A kind of method calling 32 decoding storehouses under 64 bit manipulation systems, comprises the steps of：
1）64 host process call one 64 encapsulation storehouses, cross over processing border, indirectly in the way of interprocess communication
Access 32 decoding storehouses functions；
2）In order to improve the access performance of big flow video data, the original video data that 32 decoding storehouses obtain directly is write
Enter in shared drive, read for 64 encapsulation storehouses.
64 described encapsulation storehouses are a set of definition with 32 on all four function interfaces in decoding storehouse of master, including master
The repertoire in decoding storehouse, when host process calls this encapsulation storehouse, consistent with the decoding storehouse that other have had 64 corresponding versions.
Described 64 encapsulate storehouses, and operationally automatic one or several 32 agency services are entered by this encapsulation storehouse
Journey, and establish communication connection, automatically terminate all 32 agency service processes being started by it when terminating and running.
Described interprocess communication, is included using pipeline, message queue, socket Socket or shared drive mode
The group of one or more of POSIX Shared Memory or Windows API is combined in and carries out data interaction between two processes.
32 described agency service processes, can monitor the call request from 64 encapsulation storehouses, and straight according to request
Connect and call 32 corresponding functions in decoding storehouse, then result is returned in the way of interprocess communication 64 encapsulation storehouses.
Comparison Fig. 3, a kind of equipment calling 32 decoding storehouses under 64 bit manipulation systems, it is characterized in that comprising 64 operations
When device, 32 devices and shared drive device when running, device during described 64 operations, comprise with lower module：
A. 64 host process, this is the application program that developer writes, and directly invokes 64 encapsulation storehouses；
B. 64 encapsulation storehouses, for providing 64 calling interfaces to developer, and are led to 32 agency service processes
Letter.
Device when described 32 run, comprises with lower module：
A. 32 agency service processes, for communicating with 64 encapsulation storehouses, and call 32 decoding storehouses；
B. 32 decoding storehouses, for providing the decoding function of reality；
Described shared drive device, for providing high performance video data to read and writing.
Embodiment 1
As shown in figure 1,
A kind of high performance method calling 32 decoding storehouses under 64 bit manipulation systems, comprises the following aspects：
In step s 110,64 host process decode storehouses by 64 of static linkage or dynamic importing encapsulation.
It is pointed out that interprocess communication and provide respective function interface development amount may considerably complicated if it is possible to
Obtain primary 64 decoding storehouses, then should directly invoke, scheme of the present invention is only applicable to must be using 32 decodings
The situation in storehouse；
Then, in step S111, if necessary to initialize, 64 encapsulation storehouses start 32 agency service processes, and with
It sets up communication connection, subsequently into step S112；
Then, in step S112,64 host process call the function in decoding storehouse, such as FunctionA ()；
Then, in step S113, interprocess communication is passed through in 64 encapsulation storehouses, calls in 32 agency services
FunctionA (), and result is returned 64 host process, complete flow process.
It should be noted that the decoding storehouse changed by such interprocess communication, its efficiency is bound to will than direct operation
Low, actual expense is affected by following factor：Specific interprocess communication implementation, 32 compatible layers of operating system are originally
The expense of body and loading and initialized expense.
Embodiment 2
As shown in Fig. 2
A kind of high performance method calling 32 decoding storehouses under 64 bit manipulation systems, present embodiment is in the first enforcement
Improved on the basis of mode, mainly theed improvement is that, in the present embodiment, for original the regarding of decoding storehouse output
Frequency evidence, because the feature of Video processing is that data volume is big, instantaneity has high demands, and the requirement of therefore performance is higher than common application.
Specifically, for a road 720P HD video, each second, each internal memory replicated the data needing to process 33MB, if used
Traditional Inter-Process Communication, at least needs 2-3 internal memory to replicate（memcpy）Operation, this will have a strong impact on execution efficiency.For
This, in the method for data exchange, the present embodiment has been specifically designed one and internal memory has been replicated the shortcut minimizing, and flow process is as schemed
Shown in 2：
In step S210,64 host process pass through the decoding through 64 encapsulation of static linkage or dynamic importing
Storehouse；
Then, in step S211, if necessary to initialize, 64 encapsulation storehouses start 32 agency service processes, and with
It sets up communication connection；
Meanwhile, in step S212, create one piece of shared drive by 32 agency service processes or 64 host processes, use
Exchange in video data；
Then, in step S213,64 host process call the function in decoding storehouse, such as FunctionA (), if
FunctionA () needs to obtain decoded video data, enters step S214, if generic function calls, enters step S217；
Then, in step S214, the original video data that 32 decoding storehouses obtain is copied to altogether by 32 agency services
Enjoy in internal memory；
Then, in step S215,32 agency service processes pass through process communication, have notified 64 encapsulation storehouse new datas
Through available；
Then, in step S216,64 host processes are passed through to encapsulate storehouse, read the data in shared drive, complete flow process.
In step S217, interprocess communication is passed through in 64 encapsulation storehouses, calls the FunctionA in 32 agency services
(), and result is returned 64 host process, complete flow process.
Embodiment 3
A kind of high performance method calling 32 decoding storehouses under 64 bit manipulation systems, present embodiment is in the first enforcement
Improved on the basis of mode, mainly theed improvement is that, in the present embodiment, improved entering of first embodiment
Communicate between journey, all of order all directly carries out data interaction using shared drive, in order that 32 and 64 processes directly make
Use same internal memory, need to the process carrying out following aspect in reading and writing data：
1. uniform data alignment, directly carrying out data interaction using structure remains one of the most efficient method, but
32 alignment of data modes with 64 bit processors are different.Complicated self-defining data structure is entered to 64 from 32 process transmission
Cheng Shi, may will not obtain desired result, vice versa, solve this problem and need to inquire about specific platform compiler to say
Bright；
Specifically, this problem can be solved by the following method：After an int32_t member, extra addition is another
Individual int32_t member, so, no matter account for 8 byte storages, thus eliminating in 32 systems or in 64 systems
Difference between different frameworks；
2. uniform data type, in most cases, the data type of 64 programs and 32 programs is identical, can
Different mainly pointer and longs can occur.Solve this problem to support across processor architecture by using some
Data type such as intptr_t or typedef conditional compilation is carried out according to different platform, with realize identical code adapt to many
Plant platform.
Even if it will be apparent to an ordinarily skilled person in the art that making a change to the details and form of implementation below,
Still the technical scheme described in the application claims can be realized.Embodiments of the present invention include falling into claims
Spirit and intension in the range of all changes or Equivalent realization.
It should be noted that in order to project explanation innovative part, only illustrating the related module of embodiment of the present invention.Should
Work as understanding, following detailed description, be used only for explaining the present invention, be not limited to the present invention." connection " described herein
Can be to be mechanically connected, electrical connection, connect or annexation in logic inside original paper, in other words, this area common
Technical staff should determine as the case may be for the understanding of above-mentioned term.
Claims (4)
1. a kind of method calling 32 decoding storehouses under 64 bit manipulation systems, is characterized in that the method includes the steps of：
1）64 host process call one 64 encapsulation storehouses, cross over processing border, indirectly visit in the way of interprocess communication
Ask the function in 32 decoding storehouses；
2）In order to improve the access performance of big flow video data, the original video data that 32 decoding storehouses obtain directly writes to
In shared drive, read for 64 encapsulation storehouses；
64 described encapsulation storehouses are a set of definition with 32 on all four function interfaces in decoding storehouse of master, including master decoding
The repertoire in storehouse, when host process calls this encapsulation storehouse, consistent with the decoding storehouse that other have had 64 corresponding versions；
Described 64 encapsulation storehouses, operationally this encapsulation storehouse is by automatic one or several 32 agency service processes, and
Establish communication connection, automatically terminate all 32 agency service processes being started by it when terminating and running.
2. a kind of method calling 32 decoding storehouses under 64 bit manipulation systems according to claim 1, is characterized in that institute
The interprocess communication stated, includes POSIX Shared using pipeline, message queue, socket Socket or shared drive mode
The group of one or more of Memory or Windows API is combined in and carries out data interaction between two processes.
3. a kind of method calling 32 decoding storehouses under 64 bit manipulation systems according to claim 1, is characterized in that institute
The 32 agency service processes stated, can monitor the call request from 64 encapsulation storehouses, and directly invoke 32 according to request
Then result is returned to 64 encapsulation storehouses in the way of interprocess communication by the corresponding function in decoding storehouse.
4. a kind of equipment calling 32 decoding storehouses under 64 bit manipulation systems, it is characterized in that comprising 64 devices when running, 32
Device and shared drive device when position is run, device during described 64 operations, comprise with lower module：
A. 64 host process, this is the application program that developer writes, and directly invokes 64 encapsulation storehouses；
B. 64 encapsulation storehouse, for developer provide 64 calling interfaces, and with 32 agency service process communications；
Device when described 32 run, comprises with lower module：
A. 32 agency service processes, for communicating with 64 encapsulation storehouses, and call 32 decoding storehouses；
B. 32 decoding storehouses, for providing the decoding function of reality；
Described shared drive device, for providing high performance video data to read and writing；
64 described encapsulation storehouses are a set of definition with 32 on all four function interfaces in decoding storehouse of master, including master decoding
The repertoire in storehouse, when host process calls this encapsulation storehouse, consistent with the decoding storehouse that other have had 64 corresponding versions；
Described 64 encapsulation storehouses, operationally this encapsulation storehouse is by automatic one or several 32 agency service processes, and
Establish communication connection, automatically terminate all 32 agency service processes being started by it when terminating and running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400814.XA CN103455361B (en) | 2013-09-06 | 2013-09-06 | Method for calling 32-bit decoding library under 64-bit operating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400814.XA CN103455361B (en) | 2013-09-06 | 2013-09-06 | Method for calling 32-bit decoding library under 64-bit operating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103455361A CN103455361A (en) | 2013-12-18 |
| CN103455361B true CN103455361B (en) | 2017-02-08 |
Family
ID=49737768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310400814.XA Active CN103455361B (en) | 2013-09-06 | 2013-09-06 | Method for calling 32-bit decoding library under 64-bit operating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103455361B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12346701B2 (en) | 2021-11-03 | 2025-07-01 | International Business Machines Corporation | Sharing global variables between addressing mode programs |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298529B (en) * | 2014-10-11 | 2018-03-02 | 山东理工大学 | A kind of application method of Freescale single-chip microcomputer development system |
| CN105630599B (en) * | 2014-10-28 | 2019-02-15 | 龙芯中科技术有限公司 | Video memory distribution method and device based on 32/64 hybrid operating system |
| CN105446732A (en) * | 2015-05-13 | 2016-03-30 | 北京天诚盛业科技有限公司 | Operation realization method, device and system of 64-bit program |
| CN106682494B (en) * | 2016-11-16 | 2021-07-23 | 腾讯科技（深圳）有限公司 | Information access method, device and equipment |
| CN107729132B (en) * | 2017-10-09 | 2019-10-25 | 武汉斗鱼网络科技有限公司 | A kind of video decoding process guard method and device |
| CN111142969A (en) * | 2019-12-27 | 2020-05-12 | 贵阳动视云科技有限公司 | Method, device, medium and equipment for calling 32-bit program module by 64-bit program |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5828865A (en) * | 1995-12-27 | 1998-10-27 | Intel Corporation | Dual mode bus bridge for interfacing a host bus and a personal computer interface bus |
| US6018810A (en) * | 1997-12-12 | 2000-01-25 | Compaq Computer Corporation | Fault-tolerant interconnection means in a computer system |
| US6178478B1 (en) * | 1998-12-11 | 2001-01-23 | Vlsi Technology, Inc. | Smart target mechanism for eliminating dual address cycles in a peripheral component interconnect environment |
| CN101272501A (en) * | 2008-05-07 | 2008-09-24 | 北京数码视讯科技股份有限公司 | Video/audio encoding and decoding method and device |
| CN102098510A (en) * | 2010-11-25 | 2011-06-15 | 深圳市融创天下科技发展有限公司 | Methods and devices for decoding and coding audio/video data |
-
2013
- 2013-09-06 CN CN201310400814.XA patent/CN103455361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5828865A (en) * | 1995-12-27 | 1998-10-27 | Intel Corporation | Dual mode bus bridge for interfacing a host bus and a personal computer interface bus |
| US6018810A (en) * | 1997-12-12 | 2000-01-25 | Compaq Computer Corporation | Fault-tolerant interconnection means in a computer system |
| US6178478B1 (en) * | 1998-12-11 | 2001-01-23 | Vlsi Technology, Inc. | Smart target mechanism for eliminating dual address cycles in a peripheral component interconnect environment |
| CN101272501A (en) * | 2008-05-07 | 2008-09-24 | 北京数码视讯科技股份有限公司 | Video/audio encoding and decoding method and device |
| CN102098510A (en) * | 2010-11-25 | 2011-06-15 | 深圳市融创天下科技发展有限公司 | Methods and devices for decoding and coding audio/video data |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12346701B2 (en) | 2021-11-03 | 2025-07-01 | International Business Machines Corporation | Sharing global variables between addressing mode programs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103455361A (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103455361B (en) | Method for calling 32-bit decoding library under 64-bit operating system | |
| US9823851B2 (en) | Secure migratable architecture having security features | |
| WO2010053956A2 (en) | Command buffers for web-based graphics rendering | |
| EP1997021B1 (en) | Framework for domain-specific run-time environment acceleration using virtualization technology | |
| US20190141145A1 (en) | Cloud-scale heterogeneous datacenter management infrastructure | |
| US8145902B2 (en) | Methods and apparatus for secure processor collaboration in a multi-processor system | |
| US20160378530A1 (en) | Remote-direct-memory-access-based virtual machine live migration | |
| US20200257538A1 (en) | Multithreaded rendering for virtualized graphics processing | |
| CN108874506A (en) | Virtual machine leads directly to the thermomigration process and device of equipment | |
| BRPI0816037B1 (en) | apparatus for downloading data processing, data processing unloading system, and method implemented by data processing unloading machine | |
| CN111833233A (en) | Deep Learning Thread Communication | |
| EP2941694A1 (en) | Capability based device driver framework | |
| CN101833470A (en) | Injecting transactions to support virtualization of a physical device controller | |
| EP4052141B1 (en) | System and method for constructing filter graph-based media processing pipelines in a browser | |
| US20200285559A1 (en) | System, apparatus and method for dynamic tracing in a system having one or more virtualization environments | |
| US20110072433A1 (en) | Method to Automatically ReDirect SRB Routines to a ZIIP Eligible Enclave | |
| US20190303209A1 (en) | Data Processing System | |
| US9477518B1 (en) | Method to automatically redirect SRB routines to a zIIP eligible enclave | |
| CN113891087A (en) | A method and system for implementing virtualization hardware codec acceleration based on Linux system | |
| CN117608835A (en) | Distributed kernel architecture for server-free data center | |
| CN117608756A (en) | Request processing methods, devices, electronic equipment and storage media | |
| US7702789B2 (en) | Apparatus, system, and method for reassigning a client | |
| CN105550050A (en) | Hardware communication method and apparatus | |
| CN110852139A (en) | Biometric feature recognition method, biometric feature recognition device, biometric feature recognition equipment and storage medium | |
| CN105205031A (en) | Distributed Computing System and Computing Method of Distributed System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |