CN102761603A - Webpage flash video redirection method in VDI environment - Google Patents
Webpage flash video redirection method in VDI environment Download PDFInfo
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Abstract
A webpage flash video redirection method in a VDI (Virtual Desktop Infrastructure) environment comprises the following steps: analyzing webpage text data and acquiring both a file of a Flash video player on a present webpage and parameters used during video play; intercepting a webpage HTTP (Hyper Text Transport Protocol) request and acquiring a video request of the present webpage; analyzing a request data packet and reversely positioning to a Flash control issuing the requests through the group of requests; sending the Flash video player embedded into the webpage to a client side and dynamically building a Flash video play environment the same as the present webpage on the client side according to the structure of the present webpage; generating a network request by the operating Flash video player on the client side; and sending corresponding video streaming to the client side for play by a VDI server which receives the video request from the client side. By adopting the webpage flash video redirection method provided by the invention, the burdens of both the VDI server and the client side are greatly reduced and the quality of watched videos is improved.
Description
[technical field]
The present invention relates to computer phoneme video technique field, relate in particular to the method that the webpage flash video under a kind of VDI environment is redirected.
[background technology]
VDI, English full name Virtual Desktop Infrastructure, i.e. virtual desktop architecture.It is not the desktop PC that all disposes operation Windows XP or a Vista to each user, but through at the server operation Windows of data center XP, carries out your desktop virtual; The user calculates agreement through the client from client device (client computer or home PC) and is connected with virtual desktop, and their desktop of user capture similarly is that desktop is installed in the traditional this locality of visit.
Along with the popularization of cloud computing technology, increasing the obtaining of VDI agreement used.Video playback is an insoluble problem always under the VDI environment.Video playback under the VDI environment receives the restriction of VDI agreement on the one hand, receives the restriction of the network bandwidth on the other hand, causes the VDI agreement in use can't well satisfy the needs of video-see.Particularly the broadcast to webpage Flash video never has the good treatment method.
At present best processing mode reduces the purpose that bandwidth is accelerated the image transmission for tackling through being drawn in Flash video playback zone and through the consecutive image compression algorithm of optimizing this area image is carried out special processed compressed, reaching.
Though use said method to solve the slack problem of webpage Flash video playback to a certain extent, it also produces a lot of negative effects.
1, server need be encoded to decoded video data after accomplishing the original video data decoding again, takies great server resource this moment;
2, when client was carried out played in full screen, server wanted coded data to increase along with the increase of current display resolution, and when client uses big resolution to connect, the cpu resource of server can't be born the demand of compressed image;
3, when client is carried out played in full screen, the data that need decode owing to client cause client also will consume great cpu resource along with the increase of current use resolution increases, and finally cause client to bear and separate code requirement;
4, because image through the processing of compression algorithm, uses said method when the remote watching video, the relative original video quality of video quality will have bigger reduction.
[summary of the invention]
The method that technical problem to be solved by this invention is to provide the webpage flash video under a kind of VDI environment to be redirected reduces VDI server and client side's burden greatly, and has improved the quality of the video of watching.
The present invention adopts following technical scheme to solve the problems of the technologies described above:
The method that webpage flash video under a kind of VDI environment is redirected comprises the steps:
Step 1: the analyzing web page text data, obtain Flash video player file on the current web page, and the parameter of using during displaying video;
Specific practice is: exploitation IE browser BHO (WebBrowser Help Object) plug-in unit; This BHO plug-in unit is used for opening the Flash plug-in unit on the webpage post analysis webpage at the IE browser; Therefrom isolate the Flash control that this webpage need load, and the swf file of recorded and stored Flash video player;
Step 2:, therefrom obtain the video request of current web page through interception webpage HTTP request;
Step 3: the analysis request packet, record request content and this request responding information, and through the Flash control of this group request inverted orientation to initiation request;
Step 4: the Flash video player that embeds on the webpage is sent to client, according to the structure of current web page at the client dynamic construction Flash video playback environment the same with current web page;
Step 5: the Flash video player of client produces network requests when operation, is used to obtain the video data that needs are play;
Step 6: if client device can directly have access to the primitive network address of video data through network, then client is directly obtained video data in the video server by the Flash video website, and play-overs in client; If client because network limits can't be visited the video server of Flash video website, then through interception HTTP request, is transmitted the HTTP request mode and is obtained video data to the VDI server;
Step 7: after the VDI server is received the video request from client, with the corresponding relation of swf file corresponding video flowing is sent to client through the Flash video source address of record before the contrast and play.
Further, said step 2 specifically comprises: through calling the HTML Control series A PI that Microsoft provides, create the HTTP request monitor of current page, keep watch on all the HTTP requests on the current page; In HTTP request monitor, filter by all HTTP request of data of sending on the current web page, therefrom isolate the video data request that the Flash video player sends.
Further, said step 4 specifically comprises: swf file and the relevant parameters that will send the Flash player in the Flash control of HTTP video data request send to the VDI client; The VDI client makes up simple Flash video player and relevant parameter is set after receiving the swf file and parameter thereof that server sends in this locality, make up and tackle the identical Flash playing environment in website.
The invention has the advantages that: when 1, under the VDI environment, watching the Flash video; The VDI server only is responsible for transmitting Flash video player file swf file and the video initial data flows to client; On the VDI server, do not carry out the decoding and the compression of video data, reduce the VDI load of server greatly.2, client is at the local decode video data, and video data can not incur loss because of the repeating process of centre, and the user can well watch video in the VDI client.3, client need not consume more cpu resource along with the increase of local resolution and is used for video decode when decoded data, reduces the burden of VDI client.
[description of drawings]
Combine embodiment that the present invention is done further description with reference to the accompanying drawings.
Fig. 1 is the inventive method schematic flow sheet.
[embodiment]
See also shown in Figure 1ly, the method that the webpage flash video under the VDI environment of the present invention is redirected comprises the steps:
Step 1: the analyzing web page text data, obtain Flash video player file on the current web page, and the parameter of using during displaying video;
Specific practice is: exploitation IE browser BHO (WebBrowser Help Object) plug-in unit; This BHO plug-in unit is used for opening the Flash plug-in unit on the webpage post analysis webpage at the IE browser; Therefrom isolate the Flash control that this webpage need load, and the swf file of recorded and stored Flash video player.
Step 2:, therefrom obtain the video request of current web page through interception webpage HTTP request;
Specifically comprise: through calling the HTML Control series A PI that Microsoft provides, create the HTTP request monitor of current page, keep watch on all the HTTP requests on the current page; In HTTP request monitor, filter by all HTTP request of data of sending on the current web page, therefrom isolate the video data request that the Flash video player sends.
Step 3: the analysis request packet, record request content and this request responding information, and through the Flash control of this group request inverted orientation to initiation request.
Specific practice is:
The Flash control is loaded as an ActiceX control in the IE browser; ActiveX control is as a com component; Can derive a series of interface; The interface function that Flash video player swf file wherein is set is put_Movie, is redirected in the Mine_put_Movie function that this interface function writes to oneself position of therefrom writing down Flash video player swf file through COM HOOK technology; Through realizing the IHttpNegotiate interface of the WEB of Microsoft browser, therefrom obtain each HTTP requested packets, thereby therefrom find the Flash player the real network information of the video file that will play.
Step 4: the Flash video player that embeds on the webpage is sent to client, according to the structure of current web page at the client dynamic construction Flash video playback environment the same with current web page;
Specifically comprise: swf file and the relevant parameters that will send the Flash player in the Flash control of HTTP video data request send to the VDI client; The VDI client makes up simple Flash video player and relevant parameter is set after receiving the swf file and parameter thereof that server sends in this locality, make up and tackle the identical Flash playing environment in website.
Step 5: the Flash video player of client produces network requests when operation, is used to obtain the video data that needs are play.
Step 6: if client device can directly have access to the primitive network address of video data through network, then client is directly obtained video data in the video server by the Flash video website, and play-overs in client; If client because network limits can't be visited the video server of Flash video website, then through interception HTTP request, is transmitted the HTTP request mode and is obtained video data to the VDI server.
Step 7: after the VDI server is received the video request from client, with the corresponding relation of swf file corresponding video flowing is sent to client through the Flash video source address of record before the contrast and play.
Beneficial effect of the present invention is: when 1, under the VDI environment, watching the Flash video; The VDI server only is responsible for transmitting Flash video player file swf file and the video initial data flows to client; On the VDI server, do not carry out the decoding and the compression of video data, reduce the VDI load of server greatly.2, client is at the local decode video data, and video data can not incur loss because of the repeating process of centre, and the user can well watch video in the VDI client.3, client need not consume more cpu resource along with the increase of local resolution and is used for video decode when decoded data, reduces the burden of VDI client.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. the method that is redirected of the webpage flash video under the VDI environment is characterized in that: comprise the steps:
Step 1: the analyzing web page text data, obtain Flash video player file on the current web page, and the parameter of using during displaying video;
Specific practice is: exploitation IE browser BHO plug-in unit, and this BHO plug-in unit is used for opening the Flash plug-in unit on the webpage post analysis webpage at the IE browser, therefrom isolates the Flash control that this webpage need load, and the swf file of recorded and stored Flash video player;
Step 2:, therefrom obtain the video request of current web page through interception webpage HTTP request;
Step 3: the analysis request packet, record request content and this request responding information, and through the Flash control of this group request inverted orientation to initiation request;
Step 4: the Flash video player that embeds on the webpage is sent to client, according to the structure of current web page at the client dynamic construction Flash video playback environment the same with current web page;
Step 5: the Flash video player of client produces network requests when operation, is used to obtain the video data that needs are play;
Step 6: if client device can directly have access to the primitive network address of video data through network, then client is directly obtained video data in the video server by the Flash video website, and play-overs in client; If client because network limits can't be visited the video server of Flash video website, then through interception HTTP request, is transmitted the HTTP request mode and is obtained video data to the VDI server;
Step 7: after the VDI server is received the video request from client, with the corresponding relation of swf file corresponding video flowing is sent to client through the Flash video source address of record before the contrast and play.
2. the method that the webpage flash video under the VDI environment as claimed in claim 1 is redirected; It is characterized in that: said step 2 specifically comprises: through calling the HTML Control series A PI that Microsoft provides; Create the HTTP request monitor of current page, keep watch on all the HTTP requests on the current page; In HTTP request monitor, filter by all HTTP request of data of sending on the current web page, therefrom isolate the video data request that the Flash video player sends.
3. the method that the webpage flash video under the VDI environment as claimed in claim 1 is redirected, it is characterized in that: said step 4 specifically comprises: swf file and the relevant parameters that will send the Flash player in the Flash control of HTTP video data request send to the VDI client; The VDI client makes up simple Flash video player and relevant parameter is set after receiving the swf file and parameter thereof that server sends in this locality, make up and tackle the identical Flash playing environment in website.
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| CN104038778A (en) * | 2014-05-23 | 2014-09-10 | 深圳市深信服电子科技有限公司 | Multimedia redirection playing control method and device |
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