CN104796779A - Method and system for converting PPT into videos to be played - Google Patents
Method and system for converting PPT into videos to be played Download PDFInfo
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- CN104796779A CN104796779A CN201510132400.2A CN201510132400A CN104796779A CN 104796779 A CN104796779 A CN 104796779A CN 201510132400 A CN201510132400 A CN 201510132400A CN 104796779 A CN104796779 A CN 104796779A
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Abstract
The invention relates to the field of computer multimedia, in particular to a method and system for converting the PPT into videos to be played. The method includes the steps that a server receives a request which is sent by a client side and used for playing the assigned PPT; the server establishes a window in a virtual screen through a virtual screen driver according to the request so as to play the assigned PPT; the server conducts screen capture on the PPT playing window to obtain screen shots, converts the screen shots into video data and sends the data to the client side. The virtual screen window different from an actual output desktop can be established through the server by means of the virtual screen, multiple windows can be established on different areas, and therefore multiple windows can be established according to the request of the client side, multiple routes of PPT can be played at the same time, the defect that multiple servers are needed when multiple routes of PPT are played at the same time is overcome, real-time interaction control can be achieved for the control over the PPT playing and the ink mark writing, the cost of the system is greatly reduced, and convenience is improved.
Description
Technical field
The present invention relates to field of computer multimedia, more specifically, relate to a kind of PPT and be converted to the method and system that video carries out playing.
Background technology
Often run in practical application and need to play PPT file on a computer equipment, and PPT file is on an other computer.
For this kind of problem, method conventional is at present that the computer at telnet PPT file place on the computer of local operation is play; Or computer is play at PPT file place, by signal collecting device, the signals collecting of the computer export of played file is encoded into video flowing, be then sent to local computer to decode display by network.The problem that above-mentioned two kinds of solutions are brought is to not produce interference, and the computer synchronization at PPT file place can only play a road PPT signal.If local computer is applied in large screen splicing wall system, because screen is larger, can show a lot of PPT broadcast windows, this just needs to dispose a lot of platform computer and plays PPT simultaneously, thus brings the increase of cost simultaneously.And, different PPT, the resolution of its page is often different, even difference is very large, such as show on large screen splicing wall for adapting to, may make the page that width is larger, but in existing method, the resolution limitations of PPT picture, in the broadcasting computer of PPT or the resolution of signal collecting device, cannot reach optimal display result.
Another kind of solution in advance PPT file is changed into video file, but this method can only be encoded according to the picture of frequency to PPT preset, and cannot accomplish to carry out image switching according to the operation of actual PPT operator.
Summary of the invention
The present invention, for overcoming at least one defect (deficiency) described in above-mentioned prior art, provides a kind of multichannel PPT that simultaneously can play on same equipment to be converted to the PPT obtaining multichannel PPT vision signal the method that video carries out playing.
The present invention also provides a kind of multichannel PPT that simultaneously can play on same equipment to be converted to the PPT obtaining multichannel PPT vision signal the system that video carries out playing.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
PPT is converted to the method that video carries out playing, and comprising:
The request of PPT is specified in the broadcasting that server receives client sends;
Server creates window by the driving of void screen according to request and plays the PPT specified on void screen;
Server is grabbed screen to PPT broadcast window and is obtained snapshot picture, converts snapshot picture to video data and sends to client.
Server by utilizing void screen can create the void screen window being different from actual output desktop, and multiple window can be created in zones of different, make it possible to create multiple window according to the request of client and play multichannel PPT simultaneously, solve multichannel PPT and play the defect needing multiple servers simultaneously, greatly reduce the cost of system.And owing to being the window created by void screen, window does not limit by the resolution of output interface bandwidth sum output equipment support, the window of arbitrary resolution can be created according to actual needs, this is conducive to realizing super large resolution window, makes the corresponding video of PPT better in the broadcasting display effect of client.In addition, because window exports on desktop out virtual in reality, server actual output desktop is not by the impact creating window, user still can carry out other work on the server on actual output window, avoid server in prior art and after playing PPT, just cannot do the defect of other work, substantially increase the flexibility of server application.
PPT is converted to the system that video carries out playing, and comprises server, and described server comprises:
Request receiving module, the request of PPT is specified in the broadcasting sent for receiving client;
Playing module, plays for creating window by the driving of void screen according to request on void screen the PPT specified;
Video forms module, obtains snapshot picture, convert snapshot picture to video data for grabbing screen to PPT broadcast window;
Sending module, for sending to client by video data.
The playing module of server utilizes void to shield can create the void screen window being different from actual output desktop, and multiple window can be created in zones of different, make it possible to create multiple window according to the request of client and play multichannel PPT simultaneously, solve multichannel PPT and play the defect needing multiple servers simultaneously, greatly reduce the cost of system.And due to playing module be by void screen create window, window does not limit by the resolution of output interface bandwidth sum output equipment support, the window of arbitrary resolution can be created according to actual needs, this is conducive to realizing super large resolution window, makes the corresponding video of PPT better in the broadcasting display effect of client.In addition, because window exports on desktop out virtual in reality, server actual output desktop is not by the impact creating window, user still can carry out other work on the server on actual output window, avoid server in prior art and after playing PPT, just cannot do the defect of other work, substantially increase the flexibility of server application.
Accompanying drawing explanation
Fig. 1 is the flow chart that a kind of PPT of the present invention is converted to the method specific embodiment 1 that video carries out playing.
Fig. 2 is the flow chart that a kind of PPT of the present invention is converted to the method specific embodiment 2 that video carries out playing.
Fig. 3 is the Organization Chart that a kind of PPT of the present invention is converted to the system specific embodiment 3 that video carries out playing.
Fig. 4 is the Organization Chart that a kind of PPT of the present invention is converted to the system specific embodiment 4 that video carries out playing.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
In describing the invention, it is to be appreciated that term " first ", " second " only for describing object, and can not be interpreted as the quantity of instruction or hint relative importance or implicit indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature of " first ", " second " of restriction.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly connected by intermediary, the connection of two element internals can be said.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present invention.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
Be illustrated in figure 1 the flow chart that a kind of PPT of the present invention is converted to the method specific embodiment that video carries out playing.See Fig. 1, this specific embodiment is described for the processing procedure of server.As shown in Figure 1, a kind of PPT of this specific embodiment is converted to the concrete steps that video carries out the method play and comprises:
S101. the request of PPT is specified in the broadcasting that server receives client sends;
S102. server creates window broadcasting according to request by the driving of void screen and specifies PPT on void screen;
S103. server is grabbed screen to PPT broadcast window and is obtained snapshot picture, converts snapshot picture to video data and sends to client.
In the scheme of this specific embodiment, after the request of PPT is specified in the broadcasting that server receives client sends, created on void screen by the driving of void screen and ask corresponding window and on corresponding window, play corresponding appointment PPT, then server carries out grabbing screen cut-away view picture playing on the window of specifying PPT, and converts snapshot picture to video data and send to client terminal playing.In this process, server is driven by empty screen and create empty screen window on equipment actual output desktop, zones of different can create different windows thus can form multiwindow form, different windows can play multichannel PPT simultaneously, realizes client asking can play multiple PPT on the server and obtain multichannel PPT video data and send to client to play when playing multiple PPT simultaneously simultaneously.
In the scheme of this specific embodiment, described server can be a computer, be used for that file preservation is carried out to PPT, play play up, the operation such as Video coding, network processes.Void screen driving on the server can be installed in advance, drives virtual one piece of video card out by void screen.Empty screen refers to that realizing one computer hardware is actual by empty screen drive software on one computer exports the virtual desktop of beyond desktop one.Owing to being virtual desktop, so not by the restriction of the resolution of output interface bandwidth sum output equipment support, can realize the resolution of super large, thus can create the window of super large resolution, this will make the broadcasting display effect of PPT better.In addition, because window is virtual desktop out in addition, original desktop is unaffected, and user still can carry out other work on this desktop, and unlike common computer, cannot carry out other work after playing PPT.
Described client can be another common computer, also can be equipment or the softwares such as large screen splicing system.Client transmit a request to server by network.The broadcasting of described PPT, can use the instruments such as powerpnt to play-over, and also PPT can be converted to swf file and be play by instruments such as IE.
In specific implementation process, the size of the content determination window of the request that server can send according to client or appointment PPT, thus best display effect can be reached.
In specific implementation process, when the cut-away view picture in this specific embodiment is converted to video data, can be the video of the form such as MJPEG or H264 or MPEG4 by sectional drawing Image Coding by the mode of coding, can also be other video formats.Wherein server is grabbed screen circulation carry out, till completing asked PPT screenshotss image acquisition being play the window of PPT.
In specific implementation process, as shown in Figure 1, this specific embodiment also comprises step S104.
The PPT Play Control instruction that server receives client sends, and control window broadcasting PPT and control window to write ink marks on PPT according to the instruction of PPT Play Control.In this step, server receives the instruction of PPT Play Control, according to the broadcasting of control command control PPT and write ink marks on PPT, the instruction of PPT Play Control comprises the usual instructions that control PPT plays, and as page up, lower one page, writes ink marks operation etc.
Wherein, PPT Play Control instruction transformation can be mouse-keyboard event by server, mouse-keyboard event is sent to window and on PPT, writes ink marks to control window broadcasting PPT and to control window.
Wherein said ink marks of writing refers to the lines track can drawing mouse action in the process playing PPT on its picture, specific objective is marked, thus reach the effect being highlighted effect, after writing ink marks, server carries out grabbing screen operation again, thus make in the video data obtained, to include the PPT picture writing ink marks, thus can feed back in client carry out broadcasting display.
The increase of step S104, achieve the interactive function in PPT playing process, server can be control effectively to the PPT play by the control command of Terminal Server Client when playing PPT, realize effective interactive operation, Control Server can be carried out to the broadcasting of PPT with write at any time according to the requirement of client to PPT video data, thus the sectional drawing image that Control Server is formed, thus reach the object of control PPT video data content.
The situation that client-requested plays a road PPT is only described in this specific embodiment, client-requested is play to the situation of multichannel PPTT, server can use above-mentioned same step, creates multiple window support to play multichannel PPT simultaneously and obtain multichannel PPT video data and feed back to client and use and play according to request.
Embodiment 2
Be described for the processing procedure of server in embodiment 1, in order to clearly demonstrate technical scheme of the present invention further, in the present embodiment 2, PPT is converted to the method that video carries out playing and is described for client and server reciprocal process, and this explanation is also not used in and forms restriction to the present invention program.
As shown in Figure 2, in the present embodiment 2, the method for the present embodiment specifically comprises the steps:
S201., empty screen is installed on the server drive, drives virtual one piece of video card out by void screen;
S202. user end to server request is play and is specified PPT;
S203. server creates window according to the request of client and plays appointment PPT on void screen; Wherein server can determine the size of window according to the request of client or PPT content;
S204. server is grabbed screen to PPT broadcast window and is obtained snapshot picture, and encodes to sectional drawing, and the video data after coding is sent to client.This step cycle performs, until terminate.
Carry out in process in step S204, step S205, user end to server sends the instruction of PPT Play Control, and the instruction of PPT Play Control can be " page up ", " lower one page " and write the instructions such as ink marks operation; Step S206, the PPT broadcast window to correspondence after server receives order sends mouse-keyboard event.Step S205 and step S206 circulation performs, until terminate.
In this specific embodiment, server is installed empty screen in advance and is driven, and can create corresponding window by the driving of void screen according to client-requested; After client sends the request of playing and specifying PPT, server receives request and on void screen, creates the window corresponding with request and on corresponding window, play corresponding appointment PPT, then server carries out grabbing screen cut-away view picture playing on the window of specifying PPT, and converts snapshot picture to video data and send to client terminal playing.In this process, server is driven by empty screen and create empty screen window on equipment actual output desktop, zones of different can create different windows thus can form multiwindow form, different windows can play multichannel PPT simultaneously, realizes client asking can play multiple PPT on the server and obtain multichannel PPT video data and send to client to play when playing multiple PPT simultaneously simultaneously.Server create window time can according in PPT perhaps the requirement of client-requested determine the size of window, to reach optimal display result.When server carries out grabbing screen at PPT broadcast window, server can also receive PPR Play Control instruction from client to the broadcasting of control PPT with write, and realizes the interactive operation in playing process.
Embodiment 3
On the basis of embodiment 1 and embodiment 2, the system that the present invention also provides a kind of PPT to be converted to video to carry out playing.System of the present invention, can only include in client, server, also can comprise client and server simultaneously.In framework shown in Fig. 3, to comprise server for being illustrated structural representation of the present invention.
See Fig. 3, a kind of PPT of this specific embodiment is converted to the system that video carries out playing and comprises server 301, and server 301 comprises:
Request receiving module 3011, the request of PPT is specified in the broadcasting sent for receiving client;
Playing module 3012, plays for creating window by the driving of void screen according to request on void screen the PPT specified;
Video forms module 3013, obtains snapshot picture, convert snapshot picture to video data for grabbing screen to PPT broadcast window;
Sending module 3014, for sending to client by video data.
In the scheme of this specific embodiment, request receiving module 3011 in server 301 receives the request of the broadcasting appointment PPT that client sends, playing module 3012 shields driving according to the request that request receiving module 3011 receives by void and creates on void screen and ask corresponding window and on corresponding window, play corresponding appointment PPT, then video formation module 3013 carries out grabbing screen cut-away view picture on the window playing appointment PPT, and convert snapshot picture to video data, video is formed the video data obtained in module 3013 and sends to client terminal playing by last sending module 3014.In this process, the playing module 3012 of server 301 is driven by empty screen and create empty screen window on equipment actual output desktop, zones of different can create different windows thus can form multiwindow form, different windows can play multichannel PPT simultaneously, realizes client asking can play multiple PPT on server 301 and obtain multichannel PPT video data and send to client to play when playing multiple PPT simultaneously simultaneously.
In the scheme of this specific embodiment, described server 301 can be a computer, be used for that file preservation is carried out to PPT, play play up, the operation such as Video coding, network processes.Void screen driving on the playing module 3012 of server 301 can be installed in advance, drives virtual one piece of video card out by void screen.Empty screen refers to that realizing one computer hardware is actual by empty screen drive software on one computer exports the virtual desktop of beyond desktop one.Owing to being virtual desktop, so not by the restriction of the resolution of output interface bandwidth sum output equipment support, can realize the resolution of super large, thus can create the window of super large resolution, this will make the broadcasting display effect of PPT better.In addition, because window is virtual desktop out in addition, original desktop is unaffected, and user still can carry out other work on this desktop, and unlike common computer, cannot carry out other work after playing PPT.
The client mentioned in this specific embodiment can be another common computer, also can be equipment or the softwares such as large screen splicing system.Client transmit a request to server 301 by network.The broadcasting of described PPT, can use the instruments such as powerpnt to play-over, and also PPT can be converted to swf file and be play by instruments such as IE.
In specific implementation process, the size of the content determination window of the request that playing module 3012 can send according to client or appointment PPT, thus best display effect can be reached.
In specific implementation process, when in this specific embodiment, video formation module 3013 cut-away view picture is converted to video data, can be the video of the form such as MJPEG or H264 or MPEG4 by sectional drawing Image Coding by the mode of coding, can also be other video formats.Wherein video forms module 3013 and grabs screen circulation carry out, till completing asked PPT screenshotss image acquisition playing the window of PPT.
In specific implementation process, request receiving module 3011 is also for receiving the PPT Play Control instruction that client sends, and wherein the instruction of PPT Play Control comprises the usual instructions of controls PPT broadcasting, as page up, lower one page and write ink marks operation etc.
Playing module 3012 also controls window broadcasting PPT and controls window to write ink marks on PPT according to the instruction of PPT Play Control when playing PPT.
Wherein, event generation module can also be comprised in server 301, it is mouse-keyboard event that event generation module is used for PPT Play Control instruction transformation, and mouse-keyboard event is sent to playing module 3012 on PPT, to write ink marks to control window broadcasting PPT and to control window.
Wherein, receive the function of PPT Play Control instruction by increasing request receiving module 3011 and increase the function of playing module 3012 according to PPT Play Control instruction control window broadcasting PPT, achieve the interactive function in PPT playing process, playing module 3012 can be control effectively to the PPT play by the control command of Terminal Server Client when playing PPT, realize effective interactive operation, can at any time according to the broadcasting that client controls PPT to the requirement of PPT video data, thus the sectional drawing image formed in Control Server 301, thus reach the object of control PPT video data content.
In this specific embodiment, request receiving module 3011 can receive the request of broadcasting multiple appointment PPT that client sends or can receive multiple request of playing appointment PPT simultaneously, playing module 3012 can create multiple window accordingly according to the request of client and play multichannel appointment PPT on void screen, video forms module 3013 and can carry out grabbing screen formation video data at multiple PPT broadcast window simultaneously, and can client be sent to use multiple video data transmitting by sending module 3014 simultaneously and play.
Embodiment 4
Being described for server in embodiment 3, in order to clearly demonstrate technical scheme of the present invention further, in the present embodiment 4, PPT is converted to the system that video carries out playing and is described for client and server, and this explanation is also not used in and forms restriction to the present invention program.
See Fig. 4, a kind of PPT of this specific embodiment is converted to the system that video carries out playing and comprises server 301 and client 302;
Client 302 comprises:
Request sending module 3021, for sending the request of playing and specifying PPT to server 301; Wherein, the request that request playing module 3021 sends can be comprise the request of simultaneously playing multiple appointment PPT, also can send multiple request of playing appointment PPT simultaneously;
Server 301 comprises:
Request receiving module 3011, the request of PPT is specified in the broadcasting that the request sending module 3021 for receiving client 302 sends;
Playing module 3012, plays for creating window by the driving of void screen according to request on void screen the PPT specified;
Video forms module 3013, obtains snapshot picture, convert snapshot picture to video data for grabbing screen to PPT broadcast window;
Sending module 3014, for sending to client 302 by video data;
Client 302 also comprises:
Data reception module 3022, the video data that the sending module 3014 for reception server 301 sends.
Can carry out after client 302 receives video data storing, the operation such as broadcasting.
In the scheme of this specific embodiment, after the request sending module 3021 of client 302 sends request, request receiving module 3011 in server 301 receives request, playing module 3012 shields driving according to the request that request receiving module 3011 receives by void and creates on void screen and ask corresponding window and on corresponding window, play corresponding appointment PPT, then video formation module 3013 carries out grabbing screen cut-away view picture on the window playing appointment PPT, and convert snapshot picture to video data, video is formed the data reception module 3022 that the video data obtained in module 3013 sends to client 302 by last sending module 3014.In this process, the playing module 3012 of server 301 is driven by empty screen and create empty screen window on equipment actual output desktop, zones of different can create different windows thus can form multiwindow form, different windows can play multichannel PPT simultaneously, and the request sending module 3021 realizing client 302 is asking can play multiple PPT on server 301 and obtain multichannel PPT video data when playing multiple PPT to send to client 302 to play simultaneously simultaneously.
In the scheme of this specific embodiment, described server 301 can be a computer, be used for that file preservation is carried out to PPT, play play up, the operation such as Video coding, network processes.Void screen driving on the playing module 3012 of server 301 can be installed in advance, drives virtual one piece of video card out by void screen.Empty screen refers to that realizing one computer hardware is actual by empty screen drive software on one computer exports the virtual desktop of beyond desktop one.Owing to being virtual desktop, so not by the restriction of the resolution of output interface bandwidth sum output equipment support, can realize the resolution of super large, thus can create the window of super large resolution, this will make the broadcasting display effect of PPT better.In addition, because window is virtual desktop out in addition, original desktop is unaffected, and user still can carry out other work on this desktop, and unlike common computer, cannot carry out other work after playing PPT.
Client 302 described in this specific embodiment can be another common computer, also can be equipment or the softwares such as large screen splicing system.The request sending module 3021 of client 302 transmit a request to server 301 by network.The broadcasting of described PPT, can use the instruments such as powerpnt to play-over, and also PPT can be converted to swf file and be play by instruments such as IE.
In specific implementation process, the size of the content determination window of the request that playing module 3012 can send according to request sending module 3021 or appointment PPT, thus best display effect can be reached.
In specific implementation process, when in this specific embodiment, video formation module 3013 cut-away view picture is converted to video data, can be the video of the form such as MJPEG or H264 or MPEG4 by sectional drawing Image Coding by the mode of coding, can also be other video formats.Wherein video forms module 3013 and grabs screen circulation carry out, till completing asked PPT screenshotss image acquisition playing the window of PPT.
In specific implementation process, the request sending module 3021 of client 302 is also for sending the instruction of PPT Play Control, request receiving module 3011 is also for receiving the instruction of PPT Play Control, wherein the instruction of PPT Play Control comprises the usual instructions that control PPT plays, as page up, lower one page and write ink marks operation etc.
Playing module 3012 also controls window broadcasting PPT and controls window to write ink marks on PPT according to the instruction of PPT Play Control when playing PPT.
Wherein, event generation module can also be comprised in server 301, it is mouse-keyboard event that event generation module is used for PPT Play Control instruction transformation, and mouse-keyboard event is sent to playing module 3012 on PPT, to write ink marks to control window broadcasting PPT and to control window.
Wherein, the function of PPT Play Control instruction is sent by increasing request sending module 3021, increase request receiving module 3011 receive the function of PPT Play Control instruction and increase playing module 3012 controls window broadcasting PPT function according to the instruction of PPT Play Control, achieve the interactive function of server 301 and client 302 in PPT playing process, playing module 3012 can be control effectively to the PPT play by the control command of Terminal Server Client 302 when playing PPT, realize effective interactive operation, the broadcasting to PPT can be controlled at any time according to the requirement of client 302 pairs of PPT video datas, thus the sectional drawing image formed in Control Server 301, thus reach the object of control PPT video data content.
In this specific embodiment, the request that request playing module 3021 sends can be comprise the request of simultaneously playing multiple appointment PPT, also can send multiple request of playing appointment PPT simultaneously, request receiving module 3011 can receive the request of broadcasting multiple appointment PPT that client sends or can receive multiple request of playing appointment PPT simultaneously, playing module 3012 can create multiple window accordingly according to the request of client and play multichannel appointment PPT on void screen, video forms module 3013 and can carry out grabbing screen formation video data at multiple PPT broadcast window simultaneously, and can the data reception module 3022 of client 302 be sent by multiple video data transmitting to store by sending module 3014 simultaneously, use and play.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection range that all should be included in the claims in the present invention.
Claims (10)
1. PPT is converted to the method that video carries out playing, and it is characterized in that, comprising:
The request of PPT is specified in the broadcasting that server receives client sends;
Server creates window by the driving of void screen according to request and plays the PPT specified on void screen;
Server is grabbed screen to PPT broadcast window and is obtained snapshot picture, converts snapshot picture to video data and sends to client.
2. PPT according to claim 1 is converted to the method that video carries out playing, and it is characterized in that, installs empty screen in advance and drive in server.
3. PPT according to claim 1 is converted to the method that video carries out playing, and it is characterized in that, the request that server sends according to client or specify the size of content determination window of PPT.
4. the PPT according to any one of claims 1 to 3 is converted to the method that video carries out playing, and it is characterized in that, described method also comprises:
The PPT Play Control instruction that server receives client sends, and control window broadcasting PPT and control window to write ink marks on PPT according to the instruction of PPT Play Control.
5. PPT according to claim 4 is converted to the method that video carries out playing, it is characterized in that, PPT Play Control instruction transformation is mouse-keyboard event by server, mouse-keyboard event is sent to window and on PPT, writes ink marks to control window broadcasting PPT control window.
6. PPT is converted to the system that video carries out playing, and it is characterized in that, comprises server, and described server comprises:
Request receiving module, the request of PPT is specified in the broadcasting sent for receiving client;
Playing module, plays for creating window by the driving of void screen according to request on void screen the PPT specified;
Video forms module, obtains snapshot picture, convert snapshot picture to video data for grabbing screen to PPT broadcast window;
Sending module, for sending to client by video data.
7. PPT according to claim 6 is converted to the system that video carries out playing, and it is characterized in that, installs empty screen in advance and drive in playing module.
8. PPT according to claim 6 is converted to the system that video carries out playing, and it is characterized in that, the request that playing module sends according to client or specify the size of content determination window of PPT.
9. the PPT according to any one of claim 6-8 is converted to the system that video carries out playing, and it is characterized in that, request receiving module is also for receiving the PPT Play Control instruction that client sends;
Playing module also controls window broadcasting PPT and controls window to write ink marks on PPT according to the instruction of PPT Play Control when playing PPT.
10. PPT according to claim 9 is converted to the system that video carries out playing, it is characterized in that, event generation module is also comprised in described server, it is mouse-keyboard event that event generation module is used for PPT Play Control instruction transformation, and mouse-keyboard event is sent to playing module on PPT, to write ink marks to control window broadcasting PPT and to control window.
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| CN105511827A (en) * | 2015-12-04 | 2016-04-20 | 广东威创视讯科技股份有限公司 | Presentation file playing method and system |
| CN105786429A (en) * | 2016-02-22 | 2016-07-20 | 广东威创视讯科技股份有限公司 | Method and system for displaying data on spliced wall |
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| CN105511826A (en) * | 2015-12-04 | 2016-04-20 | 广东威创视讯科技股份有限公司 | Method and system for displaying documents on jointed screen |
| CN105511827A (en) * | 2015-12-04 | 2016-04-20 | 广东威创视讯科技股份有限公司 | Presentation file playing method and system |
| CN105446685B (en) * | 2015-12-04 | 2019-06-14 | 广东威创视讯科技股份有限公司 | Document playback method and system |
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| CN105955688B (en) * | 2016-05-04 | 2018-11-02 | 广州视睿电子科技有限公司 | Play the method and system of PPT frame losings processing |
| CN105955688A (en) * | 2016-05-04 | 2016-09-21 | 广州视睿电子科技有限公司 | Play PPT (Microsoft Office PowerPoint) frame loss processing method and system |
| CN107808554A (en) * | 2017-09-26 | 2018-03-16 | 上海欧美拉光电股份有限公司 | A kind of intellectual development drawing entertainment experience equipment for being used to cultivate people |
| CN111246276A (en) * | 2018-11-28 | 2020-06-05 | 鸿合科技股份有限公司 | Remote courseware playing method and device and electronic equipment |
| CN110413803A (en) * | 2019-07-08 | 2019-11-05 | 湖北盟道信息科技有限公司 | PPT for joining school net teaching system shows control method |
| CN110413803B (en) * | 2019-07-08 | 2022-12-27 | 湖北盟道信息科技有限公司 | PPT projection control method for online education system of joint school |
| CN110392275A (en) * | 2019-07-17 | 2019-10-29 | 视联动力信息技术股份有限公司 | A kind of sharing method of presentation, device and view networking software terminal |
| CN110392275B (en) * | 2019-07-17 | 2021-04-23 | 视联动力信息技术股份有限公司 | Sharing method and device for manuscript demonstration and video networking soft terminal |
| CN110457112A (en) * | 2019-08-21 | 2019-11-15 | 深圳市第三极智能物联有限公司 | A kind of desktop conferencing and interaction systems |
| CN112533054A (en) * | 2019-09-19 | 2021-03-19 | 腾讯科技（深圳）有限公司 | Online video playing method and device and storage medium |
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