CN104598222A - Obtaining method for cross-platform private cloud file thumbnail - Google Patents
Obtaining method for cross-platform private cloud file thumbnail Download PDFInfo
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- CN104598222A CN104598222A CN201410831769.8A CN201410831769A CN104598222A CN 104598222 A CN104598222 A CN 104598222A CN 201410831769 A CN201410831769 A CN 201410831769A CN 104598222 A CN104598222 A CN 104598222A
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Abstract
The invention discloses an obtaining method for a cross-platform private cloud file thumbnail. The obtaining method is characterized by including the following steps that (1), a platform framework based on UPnP, XMPP, libjpeg, libpng and Thumbnail Cache is established; (2), the thumbnail of a local picture is browsed, and a function interface based on C development is directly called under the platform framework; (3), in the process of browsing a picture thumbnail of cross-network equipment, and the XMPP based on an instant messaging protocol is used; (4), in the process of browsing a picture thumbnail of local area network equipment, a UPnP protocol is used under the platform framework. Browsing of the picture thumbnails is not limited by operation systems of intelligent equipment or networks, high-quality experience is provided for a user, a network protocol and picture coder and decoder unified platform is constructed, and a large amount of retrieval behaviors and long consumed time are avoided.
Description
Technical field
The invention belongs to the technical field of communication, relate to a kind of implementation method of cloud file thumbnail more specifically.
Background technology
The scene of browsing pictures is the picture that smart machine browses WEB server more widely at present, by WEB server pre-generatmg thumbnail, for user's preview.This mode has following shortcoming: one is that this preview picture mode is confined between WEB server and client; Two be WEB server IP address must be in client can direct access location.This can not browse the problem of thumbnail under just causing the scene of mutual browsing pictures file in LAN (Local Area Network) or wide area network between various smart machine in advance.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of method that all can realize preview picture between arbitrary equipment when inter-network.
The present invention is realized by following technical scheme.
A kind of cross-platform privately owned cloud file thumbnail implementation method, comprises the steps:
(1) platform framework based on UPnP, XMPP, libjpeg, libpng and Thumbnail Cache is set up: wherein UI is as the decision maker of software logic, UPnP and XMPP, as intermediate module arranged side by side, does not occur simultaneously each other; Bottom libjpeg/libpng provide codec functions, and Thumbnail Cache maps former figure and thumbnail, completes thumbnail storage and reading process; UI directly can call UPnP, XMPP and libjpeg/libpng;
(2) browse local picture thumbnail, under this platform framework, directly call the function interface based on C exploitation;
(3) picture thumbnail of across a network equipment is browsed, under this platform framework, use the picture thumbnail request flow process achieving chain of command based on IQ primitive in instant communication protocol XMPP, and utilize P2P agreement by picture thumbnail entity transmission to the local flow process shown;
(4) picture thumbnail of lan device is browsed, what under this platform framework, utilize UPnP protocol intelligence analyzes viewed equipment and browsing apparatus under same LAN (Local Area Network), select the HTTP transmission mode of UPnP inside, complete the flow process of picture thumbnail entity transmission to local display fast.
As this technical scheme further, described local terminal UPnP only consults with opposite end UPnP, calls picture encoding and decoding interface by opposite end UPnP.
As this technical scheme further, described local terminal XMPP only consults with opposite end XMPP, calls picture encoding and decoding interface by opposite end XMPP.
As this technical scheme further, the function interface of described C exploitation uses bicubic interpolation algorithm.
Beneficial effect: the invention of this patent is based on the Platform of UPnP, XMPP, libjpeg, libpng and Thumbnail Cache, achieve picture thumbnail preview not by smart machine operating system or the limitation of network, for user provides high-quality experience, construct procotol and the picture codec unified platform.Performance is also optimized: achieve thumbnail buffer memory (Thumbnail Cache), the path of depositing of depositing path and former figure of thumbnail file defines mirror image (such as former figure :/dir0/dir1/pic0; Thumbnail :/thumbnail/dir0/dir1/pic0), when searching thumbnail, only needing to revise former figure path and just can directly locate, avoiding a large amount of retrievals; Simultaneously UPnP, XMPP, libjpeg/libpng share thumbnail buffer memory, follow identical principle, the thumbnail generated under ensure that three kinds of scenes multiplexing; After entering LAN (Local Area Network), agreement automatically switches to UPnP, avoids the problem that XMPP link setup is more consuming time.
accompanying drawing illustrates:
Fig. 1 is technical method logical diagram of the present invention.
Fig. 2 is the transmission path of across a network equipment.
Fig. 3 is the transmission path of equipment in LAN (Local Area Network).
embodiment:
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail specific embodiments of the invention below in conjunction with accompanying drawing.
See Fig. 1, a kind of cross-platform privately owned cloud file thumbnail implementation method, comprises the steps:
(1) platform framework based on UPnP, XMPP, libjpeg, libpng and Thumbnail Cache is set up: wherein UI is as the decision maker of software logic, UPnP and XMPP, as intermediate module arranged side by side, does not occur simultaneously each other; Bottom libjpeg/libpng provide codec functions, and Thumbnail Cache maps former figure and thumbnail, completes thumbnail storage and reading process; UI directly can call UPnP, XMPP and libjpeg/libpng;
Thumbnail Cache organizes thumbnail according to former figure path mirror-image fashion, and such as, the path of former figure is :/dir0/dir1/pic0; Thumbnail path is then :/thumbnail/dir0/dir1/pic0, can the former figure of fast mapping and thumbnail, completes thumbnail storage and reading process.
(2) local picture thumbnail is browsed, directly call the function interface (bicubic interpolation algorithm) based on C exploitation, for avoiding transplanting the open source projects such as too huge opencv, bicubic interpolation algorithm is used to develop micro-thumbnail module based on libjpeg/libpng, avoid the additional workload that brings of difference due to the exploitation of iOS, Android or Windows control, unify the interface of each operating system
(3) browse the picture thumbnail of across a network equipment, use the picture thumbnail request flow process achieving chain of command based on IQ primitive in instant communication protocol XMPP, and utilize P2P agreement by picture thumbnail entity transmission to the local flow process shown.As shown in Figure 2, carried thumbnail information by preview device and IP address is forwarded to preview device by XMPP server, whether preview device is attempted all possible IP address and be may have access to, and sets up point-to-point link with addressable IP address, after realizing thumbnail transmission, disconnecting link.XMPP achieves the UPnP function of across a network.
(4) picture thumbnail of lan device is browsed, what this platform utilized UPnP protocol intelligence analyzes viewed equipment and this equipment under same LAN (Local Area Network), the prioritizing selection HTTP transmission mode of UPnP inside, completes the flow process of picture thumbnail entity transmission to local display fast.UPnP(Universal Plug and Play) support the equipment of the mutual preview of automatic search LAN (Local Area Network) internal support and obtain opposite equip. thumbnail function, support searched and be acquired thumbnail function; As shown in Figure 3, compared with XMPP, decrease the time of a large amount of link establishment process institute losses.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (4)
1. a cross-platform privately owned cloud file thumbnail implementation method, is characterized in that, comprise the steps:
(1) platform framework based on UPnP, XMPP, libjpeg, libpng and Thumbnail Cache is set up: wherein UI is as the decision maker of software logic, UPnP and XMPP, as intermediate module arranged side by side, does not occur simultaneously each other; Bottom libjpeg/libpng provide codec functions, and Thumbnail Cache maps former figure and thumbnail, completes thumbnail storage and reading process; UI directly can call UPnP, XMPP and libjpeg/libpng;
(2) browse local picture thumbnail, under this platform framework, directly call the function interface based on C exploitation;
(3) picture thumbnail of across a network equipment is browsed, under this platform framework, use the picture thumbnail request flow process achieving chain of command based on IQ primitive in instant communication protocol XMPP, and utilize P2P agreement by picture thumbnail entity transmission to the local flow process shown;
(4) picture thumbnail of lan device is browsed, what under this platform framework, utilize UPnP protocol intelligence analyzes viewed equipment and browsing apparatus under same LAN (Local Area Network), select the HTTP transmission mode of UPnP inside, complete the flow process of picture thumbnail entity transmission to local display fast.
2. the cross-platform privately owned cloud file thumbnail implementation method of one according to claim 1, it is characterized in that, described local terminal UPnP only consults with opposite end UPnP, calls picture encoding and decoding interface by opposite end UPnP.
3. the cross-platform privately owned cloud file thumbnail implementation method of one according to claim 1, it is characterized in that, described local terminal XMPP only consults with opposite end XMPP, calls picture encoding and decoding interface by opposite end XMPP.
4. the cross-platform privately owned cloud file thumbnail implementation method of one according to claim 1, is characterized in that, the function interface of described C exploitation uses bicubic interpolation algorithm.
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| CN201410831769.8A CN104598222A (en) | 2014-12-29 | 2014-12-29 | Obtaining method for cross-platform private cloud file thumbnail |
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| CN201410831769.8A CN104598222A (en) | 2014-12-29 | 2014-12-29 | Obtaining method for cross-platform private cloud file thumbnail |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262795A (en) * | 2015-09-18 | 2016-01-20 | 惠州市德赛工业发展有限公司 | Private cloud and public cloud combined online education system |
| CN108733437A (en) * | 2017-04-14 | 2018-11-02 | 纬创资通股份有限公司 | Instant messaging method, system, electronic device and server |
| CN109587365A (en) * | 2017-09-28 | 2019-04-05 | 京瓷办公信息系统株式会社 | Management system, management computer and recording medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103064662A (en) * | 2012-08-28 | 2013-04-24 | 华南理工大学 | Phone Gap cross-platform media expansion frame based on Android platform |
| CN103222274A (en) * | 2010-11-18 | 2013-07-24 | Lg电子株式会社 | Web-browsing method, and image display device using same |
| CN103731483A (en) * | 2013-12-25 | 2014-04-16 | 侯金涛 | Virtual file system based on cloud computing |
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2014
- 2014-12-29 CN CN201410831769.8A patent/CN104598222A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103222274A (en) * | 2010-11-18 | 2013-07-24 | Lg电子株式会社 | Web-browsing method, and image display device using same |
| CN103064662A (en) * | 2012-08-28 | 2013-04-24 | 华南理工大学 | Phone Gap cross-platform media expansion frame based on Android platform |
| CN103731483A (en) * | 2013-12-25 | 2014-04-16 | 侯金涛 | Virtual file system based on cloud computing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262795A (en) * | 2015-09-18 | 2016-01-20 | 惠州市德赛工业发展有限公司 | Private cloud and public cloud combined online education system |
| CN105262795B (en) * | 2015-09-18 | 2019-07-30 | 惠州德赛信息科技有限公司 | A kind of on-line education system of private clound and public cloud combination |
| CN108733437A (en) * | 2017-04-14 | 2018-11-02 | 纬创资通股份有限公司 | Instant messaging method, system, electronic device and server |
| CN108733437B (en) * | 2017-04-14 | 2023-06-16 | 纬创资通股份有限公司 | Instant messaging method, system, electronic device and server |
| CN109587365A (en) * | 2017-09-28 | 2019-04-05 | 京瓷办公信息系统株式会社 | Management system, management computer and recording medium |
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Effective date of abandoning: 20181102 |