CN107239414A - A kind of method and device based on QT frame signals previews - Google Patents
A kind of method and device based on QT frame signals previews Download PDFInfo
- Publication number
- CN107239414A CN107239414A CN201710419056.4A CN201710419056A CN107239414A CN 107239414 A CN107239414 A CN 107239414A CN 201710419056 A CN201710419056 A CN 201710419056A CN 107239414 A CN107239414 A CN 107239414A
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- pictorial information
- picture
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- buffering queue
- read
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0875—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with dedicated cache, e.g. instruction or stack
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0893—Caches characterised by their organisation or structure
- G06F12/0895—Caches characterised by their organisation or structure of parts of caches, e.g. directory or tag array
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/45—Caching of specific data in cache memory
- G06F2212/455—Image or video data
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The video data encoded by receiving of the embodiment of the present invention, and by video data decoding into pictorial information one by one；Pictorial information is stored to default picture buffering queue；Pictorial information in picture buffering queue is read according to default timer；The pictorial information read is transmitted to control built in QT, so that the refreshable picture of control built in QT and each platform client carry out render presentation, i.e. by control built in pictorial information timing transmission to QT, then can be in multi-platform (linux, windows, mac) client carries out signal preview, so that the technical problem of signal preview can not be carried out in apple OS or other systems by solving traditional combination control software client.
Description
Technical field
The present invention relates to numerical monitor combination field, more particularly to a kind of method and dress based on QT frame signals previews
Put.
Background technology
Digital jointing wall, at present for, the digital jointing wall of in the market mainly includes：PDP display splicing (PDP), liquid
Crystalline substance screen splicing (LCD) and rear-projection large screen splicing (DLP).
Traditional spelling wall control software client adds DirectX to be rendered to realize signal to signal source based on MFC
Preview, is only limitted to the signal preview of client under windows platforms, it is impossible to professional platform independence.
In traditional combination control software client, due to needing that signal source is rendered based on MFC plus DirectX
To realize signal preview, it can not just be used in MAC or other systems.Therefore, traditional combination control software client is not
It is those skilled in the art's technical issues that need to address that signal preview, which can be carried out, in MAC or other systems.
The content of the invention
The embodiments of the invention provide a kind of method and device based on QT frame signals previews, for solving traditional spelling
The technical problem of signal preview can not be carried out in apple OS or other systems by connecing wall control software client.
A kind of method based on QT frame signals previews provided in an embodiment of the present invention, including：
Receive encoded video data, and by video data decoding into pictorial information one by one；
Pictorial information is stored to default picture buffering queue；
Pictorial information in picture buffering queue is read according to default timer；
The pictorial information read is transmitted to control built in QT so that the refreshable picture of control built in QT is simultaneously flat at each
The client of platform carries out rendering presentation.
Preferably, the pictorial information in the reading picture buffering queue according to default timer is specially：
The pictorial information in picture buffering queue is read according to default time interval according to default timer.
A kind of device based on QT frame signals previews provided in an embodiment of the present invention, including：
Decoder module, the encoded video data for receiving, and video data decoding is believed into picture one by one
Breath；
Picture buffer module, for pictorial information to be stored to default picture buffering queue；
Picture timing read module, for reading the pictorial information in picture buffering queue according to default timer；
QT control modules, for the pictorial information read to be transmitted to control built in QT so that control built in QT can be brushed
New picture simultaneously carries out rendering presentation in the client of each platform.
Preferably, the picture timing read module specifically for：
The pictorial information in picture buffering queue is read according to default time interval according to default timer.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
The video data encoded by receiving of the embodiment of the present invention, and by video data decoding into picture one by one
Information；Pictorial information is stored to default picture buffering queue；Read according to default timer in picture buffering queue
Pictorial information；The pictorial information read is transmitted to control built in QT so that the refreshable picture of control built in QT and at each
The client of platform carries out rendering presentation, i.e., then can be multi-platform by control built in pictorial information timing transmission to QT
(linux, windows, mac) client carries out signal preview, so as to solve traditional combination control software client not
The technical problem of signal preview can be carried out in apple OS or other systems.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
A kind of Fig. 1 signals of one embodiment of the method based on QT frame signals previews provided in an embodiment of the present invention
Figure；
Fig. 2 is a kind of auxiliary of one embodiment of the method based on QT frame signals previews provided in an embodiment of the present invention
Schematic diagram.
Embodiment
The embodiments of the invention provide a kind of method and device based on QT frame signals previews, for solving traditional spelling
The technical problem of signal preview can not be carried out in apple OS or other systems by connecing wall control software client.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Refer to Fig. 1 and Fig. 2, an a kind of reality of the method based on QT frame signals previews provided in an embodiment of the present invention
Example is applied, including：
101：Receive encoded video data, and by video data decoding into pictorial information one by one；
Video data generally refers to video data stream (video flowing), by encoder encoded after by the embodiment of the present invention
Receive, then by video data decoding.Pictorial information includes specific image data (being used to show picture over the display), figure
Corresponding temporal information in video of piece etc..
102：Pictorial information is stored to default picture buffering queue；
Pictorial information is stored one by one sequentially in time first to same picture buffering queue, picture buffering
There was only pictorial information in queue, and pictorial information is arranged sequentially in time.
103：Pictorial information in picture buffering queue is read according to default timer；
Timer generally refers to the timer that each one section of fixed time interval is issued by instruction, according to default timing
The time interval of device, the pictorial information in instruction reading picture buffering queue is issued by every one section of fixed time interval.
104：The pictorial information read is transmitted to control built in QT so that the refreshable picture of control built in QT and each
The client of individual platform carries out rendering presentation.
Control built in QT be may be provided in the client of each platform, and the pictorial information read is transmitted to control built in QT
Part is to be transferred in the client of each platform, and the preview picture of vision signal is then achieved that by control built in QT；QT
Built-in control may also be arranged in single terminal, will be rendered again after terminal realizes that picture refreshing is rendered by control built in QT
The client of good picture transfer to each platform is presented.
The technical program to receiving the video data encoded, is decoded into pictorial information one by one first, and will
It is stored in preprepared picture buffering queue.Reading picture in buffering queue is gone to believe by timer intervals
Breath, control built in QT is transmitted to by pictorial information, and control refreshes to be carried out rendering presentation to picture, and the mesh of signal preview is reached with this
's.
The video data encoded by receiving of the embodiment of the present invention, and by video data decoding into picture one by one
Information；Pictorial information is stored to default picture buffering queue；Read according to default timer in picture buffering queue
Pictorial information；The pictorial information read is transmitted to control built in QT so that the refreshable picture of control built in QT and at each
The client of platform carries out rendering presentation, i.e., then can be multi-platform by control built in pictorial information timing transmission to QT
(linux, windows, mac) client carries out signal preview, so as to solve traditional combination control software client not
The technical problem of signal preview can be carried out in apple OS or other systems.
The present invention is based on Cross-border congestion management framework QT, and the signal source video of preview is decoded, renders to realize signal
The purpose of preview.
It should be noted that the technical program mainly solves traditional combination control software limitation windows clients
The problem of carrying out preview to signal carries out signal preview there is provided a kind of multi-platform (linux, windows, mac) client
Solution.
Can as the embodiment of the present invention a kind of preferred scheme, the step 104 in the embodiment of the present invention can be specially：According to
Default timer reads the pictorial information in picture buffering queue according to default time interval.
A kind of device based on QT frame signals previews provided in an embodiment of the present invention will be described in detail below.
A kind of device based on QT frame signals previews provided in an embodiment of the present invention, including：
Decoder module, the encoded video data for receiving, and video data decoding is believed into picture one by one
Breath；
Picture buffer module, for pictorial information to be stored to default picture buffering queue；
Picture timing read module, for reading the pictorial information in picture buffering queue according to default timer；
QT control modules, for the pictorial information read to be transmitted to control built in QT so that control built in QT can be brushed
New picture simultaneously carries out rendering presentation in the client of each platform.
Further, the picture timing read module specifically for：
The pictorial information in picture buffering queue is read according to default time interval according to default timer.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a kind of method based on QT frame signals previews, it is characterised in that including：
Receive encoded video data, and by video data decoding into pictorial information one by one；
Pictorial information is stored to default picture buffering queue；
Pictorial information in picture buffering queue is read according to default timer；
The pictorial information read is transmitted to control built in QT so that the refreshable picture of control built in QT and in each platform
Client carries out rendering presentation.
2. a kind of method based on QT frame signals previews according to claim 1, it is characterised in that the basis is preset
Timer read picture buffering queue in pictorial information be specially：
The pictorial information in picture buffering queue is read according to default time interval according to default timer.
3. a kind of device based on QT frame signals previews, it is characterised in that including：
Decoder module, the encoded video data for receiving, and by video data decoding into pictorial information one by one；
Picture buffer module, for pictorial information to be stored to default picture buffering queue；
Picture timing read module, for reading the pictorial information in picture buffering queue according to default timer；
QT control modules, for the pictorial information read to be transmitted to control built in QT so that the refreshable figure of control built in QT
Piece simultaneously carries out rendering presentation in the client of each platform.
4. a kind of device based on QT frame signals previews according to claim 3, it is characterised in that the picture timing
Read module specifically for：
The pictorial information in picture buffering queue is read according to default time interval according to default timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419056.4A CN107239414A (en) | 2017-06-06 | 2017-06-06 | A kind of method and device based on QT frame signals previews |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419056.4A CN107239414A (en) | 2017-06-06 | 2017-06-06 | A kind of method and device based on QT frame signals previews |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107239414A true CN107239414A (en) | 2017-10-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710419056.4A Pending CN107239414A (en) | 2017-06-06 | 2017-06-06 | A kind of method and device based on QT frame signals previews |
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Citations (4)
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|---|---|---|---|---|
| CN102710968A (en) * | 2012-05-22 | 2012-10-03 | 袁华安 | Method for synchronizing video streams in cloud television system |
| CN103024567A (en) * | 2012-12-06 | 2013-04-03 | 广东欧珀移动通信有限公司 | Method and system for video preview of mobile terminal |
| CN103152412A (en) * | 2013-02-28 | 2013-06-12 | 福建三元达通讯股份有限公司 | QT-based multimedia networked information publication terminal system |
| CN103986938A (en) * | 2014-06-03 | 2014-08-13 | 合一网络技术(北京)有限公司 | Preview method and system based on video playing |
-
2017
- 2017-06-06 CN CN201710419056.4A patent/CN107239414A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710968A (en) * | 2012-05-22 | 2012-10-03 | 袁华安 | Method for synchronizing video streams in cloud television system |
| CN103024567A (en) * | 2012-12-06 | 2013-04-03 | 广东欧珀移动通信有限公司 | Method and system for video preview of mobile terminal |
| CN103152412A (en) * | 2013-02-28 | 2013-06-12 | 福建三元达通讯股份有限公司 | QT-based multimedia networked information publication terminal system |
| CN103986938A (en) * | 2014-06-03 | 2014-08-13 | 合一网络技术(北京)有限公司 | Preview method and system based on video playing |
Non-Patent Citations (2)
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|---|
| CHESTY: "在Qt中使用OpenCV做视频播放器", 《HTTPS://WWW.XUEBUYUAN.COM/970903.HTML》 * |
| WEIXIN_34248258: "qt计时器自动刷新图片", 《HTTPS://BLOG.CSDN.NET/WEIXIN_34248258/ARTICLE/DETAILS/93312225》 * |
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Application publication date: 20171010 |
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