CN101582926A - Method for realizing redirection of playing remote media and system - Google Patents
Method for realizing redirection of playing remote media and system Download PDFInfo
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Abstract
The invention discloses a method for realizing the redirection of playing remote media, a system, a client machine and a server. The method comprises the following steps of: playing a remote media file by connecting the client machine to the server; acquiring a local path of the media file and extracting a media file name therefrom so as to generate a redirection path; according the local path, loading the media file, monitoring a service port and waiting for the client machine to connect the acquired media file; writing the redirection path into the client machine of virtual mapping in a remote session; writing the redirection path into a local resource in the client machine; acquiring the data of the local resource used by the remote session and obtaining network access path of the media file; according to the network access path of the media file, starting a media player installed locally to automatically connect so as to acquire the media file; and transmitting the original media file data to the media player, and carrying out decoding and playing of video-audio frequency to the received media file data. The invention solves the problem that the server has heavy operation load and large network bandwidth occupation, and the audio frequency playing is limited by the hardware configuration of the server.
Description
Technical field
The invention belongs to computer and communication technical field, relate in particular to the method and system of realizing redirection of playing remote media.
Background technology
Microsoft Windows Terminal Service is widely used as remote desktop system, the client and server end adopts RDP RDP communication, client is collected user's mouse-keyboard operation and is passed to server end, and server end returns the operation screen of remote desktop to client and shows.
The user can be by convenient some application of using the remote desktop service end fast of remote desktop client, as web page browsing and Office office etc.Simultaneously also can pass through the remote desktop playing media file, when displaying video, audio frequency in the remote desktop at server end or when looking audio media files, video decode all carries out at server end, and by the RDP agreement decoded desktop video is spread and to deliver to the client echo; RDP agreement itself support is sent to client to the audio frequency of server end, and carries out playback by client terminal local adlib hardware.
There is following problem in the play handling method of this remote desktop media file:
Video decode can take server CPU and memory source in a large number, if a plurality of client users use simultaneously, situation can be more serious, directly has influence on some conventional remote desktop operations of other user, as Office office, browsing page etc.
Server end to video decode after, it is bitmap by region of variation in the compression screen, and the bitmap after the compression is sent to the client echo, but because video pictures changes frequently, the compress bitmap data volume that is produced is very big, watch in the client smoothness, need take the very large network bandwidth and transmit these data, in case the network bandwidth can not meet the demands, serious time-delay and pause will appear in the video pictures that client is seen.
If server end does not assemble adlib hardware, then can't produce voice data, client equally also can not receive the remote audio data and carries out playback.
Summary of the invention
The technical problem to be solved in the present invention provides the method and system of redirection of playing remote media.Server operation load in the prior art is heavy to solve, the network bandwidth takies the problem that big and voice playing is subjected to the server hardware configurable limit.
According to an aspect of the present invention, propose the method that realization remote desktop media play is redirected, may further comprise the steps: be connected on the server by client computer, play the remote media file on the described server; Obtain the local path of described media file, from the local path of described media file, extract the media file name, generate the redirected path of sign prefix+network access path prefix+media file name; Load described media file and monitoring service port according to described media file local path, wait for that described client computer connects to obtain described media file; Described redirected path is write the client computer of virtual map in the remote session; By RDP described redirected path is write local resource in the described client computer; Obtain the data in the local resource that remote session uses, during the redirected path finding to begin, remove described sign prefix, obtain the media file network access path of network access path prefix+media file name with the sign prefix; According to described media file network access path, start the local media player of having installed from being dynamically connected to obtain described media file; Transmit the original media file data by file transfer protocol (FTP) to described media player, by described media player the described media file data of receiving is looked audio decoder and play.
According to another aspect of the present invention, also propose the system that realization remote desktop media play is redirected, comprising: client computer, be connected on the server, play the remote media file on the described server; Obtain the data in the local resource that remote session uses, during the redirected path finding to begin, remove described sign prefix, obtain the media file network access path of network access path prefix+media file name with the sign prefix; According to described media file network access path, start the local media player of having installed to connect and to obtain described media file, the described media file data of receiving is looked audio decoder play; Server obtains the local path of described media file, extracts the media file name from the local path of described media file, generates the redirected path of sign prefix+network access path prefix+media file name; Load described media file and monitoring service port according to described media file local path, wait for that described client computer connects to obtain described media file; Described redirected path is write the client computer of virtual map in the remote session; By RDP described redirected path is write local resource in the described client computer.
Compared with prior art, the present invention has the following advantages and effect:
Look audio decoder and be redirected to the client computer execution, do not carry out at server, thereby save a large amount of server CPU and memory source, the performance that conventional remote desktop is used is guaranteed.
Server no longer needs to send client computer to changing frequent multitude of video data bitmap, and just transmits original file data, has improved efficiency of transmission greatly, and the network bandwidth that takies has still less further been saved the CPU and the memory source of server.
The broadcast of audio frequency is limited by the adlib hardware configuration of server no longer, therefore, need any media player and codec be installed at server, and be applicable to the media file of any form in the server.
Adopt puppy parc transmission medium file, be applicable to the media player of all main flows, and media player utilizes the pooling feature of self, make result of broadcast smooth more, this is that the remote desktop client software is incomparable.
Description of drawings
Fig. 1 realizes the method flow diagram that the remote desktop media play is redirected for the present invention.
Fig. 2 realizes the system construction drawing that the remote desktop media play is redirected for the present invention.
Fig. 3 realizes the structure chart of the client computer that the remote desktop media play is redirected for the present invention.
Fig. 4 realizes the structure chart of the server that the remote desktop media play is redirected for the present invention.
Fig. 5 realizes the embodiment that the remote desktop media play is redirected for the present invention.
Embodiment
Fig. 1 realizes the method flow diagram that the remote desktop media play is redirected for the present invention.
In step 101, be connected on the server by client computer, and double-click or play remote media file on the described server with the unfolding mode of acquiescence.
In step 102, according to the default program association of presetting, from the input parameter that operating system is given automatically, obtain the local path of described media file, from the local path of described media file, extract the media file name, in conjunction with pre-configured sign prefix and network access path prefix, generating form is the redirected path of " sign prefix+network access path prefix+media file name ".The sign prefix generally is the self-defining special string that client computer and server both sides consult, as: ts#media*redirect|.The sign prefix is generally write in advance in client computer and server both sides configuration file separately, and the content that both sides write down is consistent.Both sides can be with the standard that is recorded as in the configuration file, the character string that comparison is received, thus know whether and comprise the sign prefix.
In step 103, load described media file and monitoring service port according to described media file local path, the wait client computer connects obtains media file.
In step 104, utilize the function of the mapping client computer local resource of RDP agreement to server, redirected path is write the client computer of virtual map in the remote session, such as, the internal memory clipbook or the disk file of client computer.
In step 105, by the RDP agreement, automatically redirected path is write real local resource in the client computer, such as, the internal memory clipbook or the disk file of client computer.
In step 106, obtain the data in the local resource (as: the internal memory clipbook or the disk file of client computer) that remote session uses, in case find redirected path with " sign prefix " beginning, remove " sign prefix ", obtain the media file network access path of " network access path prefix+media file name ".
In step 107,, start the local media player of having installed and obtain media file from being dynamically connected according to described media file network access path.
In step 108, transmit the original media file data by file transfer protocol (FTP) to media player, by media player the media file data of receiving is looked audio decoder and play.Certainly, in media player, can also provide caching function, the media file that receives is play while downloading, just play after the non-download fully.Make result of broadcast smooth more, this is that the remote desktop client software is incomparable.
The present invention is when opening the media file of remote desktop, server do not start any media player, do not do anyly to look the sound decoding processing, do not play any sound and picture but be redirected to client computer and start media player, in client computer media file is made the online audio decoder of looking and handle, play sound and picture.Thereby save a large amount of server CPU and memory source, and limited by the adlib hardware configuration of server.
Server and client computer are carried out the network access path of transfer medium file by the local resource of the virtual map of RDP agreement, need not to produce new network connection and are used for transmitting these information.Improved efficiency of transmission greatly, and the network bandwidth that takies still less.
Server belongs to original file data to the media file data that client computer transmits, and does not handle through any encoding and decoding relevant with looking audio frequency.Server need not to install any streaming media server software, need not to install any software relevant with video/audio encoding and decoding.
Fig. 2 realizes the system construction drawing that the remote desktop media play is redirected for the present invention.Comprise client computer and server.
Client computer is connected on the server, and double-clicks or play remote media file on the described server with the unfolding mode of acquiescence.Obtain the data in the local resource (as: the internal memory clipbook or the disk file of client computer) that remote session uses, in case find redirected path with " sign prefix " beginning, remove " sign prefix ", obtain the media file network access path of " network access path prefix+media file name ".According to described media file network access path, start the local media player of having installed and obtain media file from being dynamically connected, the media file data of receiving is looked audio decoder play.
The sign prefix generally is the self-defining special string that client computer and server both sides consult, as: ts#media*redirect|.The sign prefix is generally write in advance in client computer and server both sides configuration file separately, and the content that both sides write down is consistent.Both sides can be with the standard that is recorded as in the configuration file, the character string that comparison is received, thus know whether and comprise the sign prefix.
Server is according to the default program association of presetting, from the input parameter that operating system is given automatically, obtain the local path of described media file, load described media file and monitoring service port according to described media file local path, the wait client computer connects obtains media file.Extract the media file name from the local path of described media file, in conjunction with pre-configured sign prefix and network access path prefix, generating form is the redirected path of " sign prefix+network access path prefix+media file name ".Utilize the function of the mapping client computer local resource of RDP agreement, redirected path is write the client computer of virtual map in the remote session to server, such as, the internal memory clipbook or the disk file of client computer.By the RDP agreement, automatically redirected path is write real local resource in the client computer, such as, the internal memory clipbook or the disk file of client computer.
Fig. 3 realizes the structure chart of the client computer that the remote desktop media play is redirected for the present invention.
The remote desktop client is connected to the remote desktop service end of server, and double-clicks or play remote media file on the described server with the unfolding mode of acquiescence.By the RDP agreement redirected path is write the local resource that remote session uses.
The local resource that remote session uses is preserved described redirected path.The local resource that remote session uses is the real local resource of client computer, such as, the internal memory clipbook or the disk file of client computer.
Start playing module, inquiry is also obtained data in the local resource (as: the internal memory clipbook or the disk file of client computer) that remote session uses, can carry out regular query manipulation, in case find redirected path with " sign prefix " beginning, remove " sign prefix ", obtain the media file network access path of " network access path prefix+media file name ".The media file network access path as input parameter, is started the local media player of having installed.
Media player, according to described media file network access path, the media file transport module of Connection Service device obtains media file automatically, the media file data of receiving is looked audio decoder play.Certainly, in media player, can also provide caching function, the media file that receives is play while downloading, just play after the non-download fully.Make result of broadcast smooth more, this is that the remote desktop client software is incomparable.
Fig. 4 realizes the structure chart of the server that the remote desktop media play is redirected for the present invention.
The remote desktop service end, according to media file suffix name auto-associating, the acquiescence executive program as media file calls the redirected path generation module according to the default program that presets.By the RDP agreement, automatically redirected path is passed to the remote desktop client of client computer.
The redirected path generation module, from the input parameter that operating system is given automatically, obtain the local path of described media file, from the local path of described media file, extract the media file name, in conjunction with pre-configured sign prefix and network access path prefix, generating form is the redirected path of " sign prefix+network access path prefix+media file name ".Utilize the function of the mapping client computer local resource of RDP agreement to server, redirected path is write the client computer of virtual map in the remote session, such as, the internal memory clipbook or the disk file of client computer, and send described redirected path to described remote desktop service end.
The media file transport module according to described media file local path, is loaded into self lightweight file transmission server and monitoring service port with described media file, waits for that client computer connects to obtain media file.When client computer is obtained media file, transmit the original media file data to the media player of client computer by file transfer protocol (FTP).
Fig. 5 realizes the embodiment that the remote desktop media play is redirected for the present invention.
System and method of the present invention so be applicable to the operating system of various support RDP agreements, is supported media file, the player software of various forms as long as just can use simultaneously in the remote desktop environment of supporting the RDP agreement.Using Windows Server 2003 operating systems, remote desktop service end to adopt based on Windows Server2003 Terminal Service, the client computer of RDP v5.2 agreement with server below uses Unbuntu Linux 8.10 operating systems, remote desktop customer end adopted to adopt the KMPlayer player as example whole flow process to be described based on rdesktop v1.60, the media player of RDP v5.2 agreement.
In step 501, the user is connected to the Win2003 service terminal in client computer by the rdesktop client, and double-clicks or open the media file of playing long-range various forms in the interface of remote desktop, as: RMVB, WMV, AVI etc.
In step 502, the desktop environment of Win2003 service terminal, the default program association according to the media file extension name presets automatically performs the redirected path generation module.
In step 503, from the input parameter that Windows operating system is given automatically, obtain the local path of media file by the redirected path generation module, D: RomanHoliday.RMVB.From the path, extract media file name RomanHoliday.RMVB, in conjunction with pre-configured sign prefix TSRedirect| and network access path prefix http://username.gsta.com:8899/, generating form is the redirected path of " sign prefix+network access path prefix+media file name ", TSRedirect|http: //username.gsta.com:8899/RomanHoliday.RMVB.
In step 504, the redirected path generation module as input parameter, calls the local path of media file to carry out startup HTML (Hypertext Markup Language) HTTP document transmission module.
In step 505, the HTTP document transmission module obtains the media file local path from input parameter, and the loading medium file also begins monitoring service port (as: transmission control protocol TCP8899), and the wait client computer connects obtains media file.
In step 506, utilize the function of the mapping client computer clipbook of RDP agreement to server, the redirected path generation module writes redirected path the client computer clipbook of virtual map in the remote session.
In step 507, the Win2003 service terminal is passed to the rdesktop client to Contents of clipboard automatically by the RDP agreement.
In step 508, rdesktop writes real local clipboard in the client computer to the Contents of clipboard of receiving automatically by the RDP agreement.
In step 509, start the playing module call operation API of system and regularly obtain Contents of clipboard.
In step 510, start playing module and handle the data that get access to, the redirected path that discovery begins with sign prefix TSRedirect|, remove the sign prefix, obtain the media file network access path of network access path prefix+media file name http://username.gsta.com:8899/RomanHoliday.RMVB.
In step 511, the startup playing module as input parameter, starts the local KMPlayer that has installed to the media file network access path.
In step 512, KMPlayer is according to input parameter, and the HTTP document transmission module that is dynamically connected certainly obtains media file.
In step 513, the HTTP document transmission module transmits the original media file data by http protocol to KMPlayer.
In step 514, KMPlayer looks audio decoder to the media file data of receiving and plays.
Will be understood that in one embodiment, the method step of being discussed is to be carried out by (one or more) suitable processor that execution is stored in processing (the being computer) system of the instruction (code segment) in the storage device.Also will understand, the present invention is not limited to any specific implementation or programming technique, and the present invention can realize that the technology of function as described herein realizes with any suitable being used to.The present invention is not limited to any specific programming language or operating system.Thereby as what one skilled in the art will appreciate that, embodiments of the invention can be implemented as method, such as the such device of isolated plant, such as the such device of data handling system, perhaps bearing medium, for example computer program.The bearing medium carrying is used for one or more computer-readable code sections of control processing system implementation method.Therefore, aspect of the present invention can be taked method, pure hardware embodiment, pure software embodiment or combine the form of the embodiment of software and hardware aspect.In addition, the present invention can take to carry the form of the bearing medium (for example computer program on the computer-readable recording medium) of the computer readable program code section that is included in the medium.Can use any suitable computer-readable medium, comprising such as disk or the such magnetic storage apparatus of hard disk, perhaps such as the such optical storage media of CD-ROM.
As conclusion, should notice that those skilled in the art will be apparent to make many variations and modification to preferred embodiment, and not break away from principle of the present invention in fact describing in detail.This variation and modification are included within the described scope of the present invention of appended claims.
Claims (4)
1. realize the method that the remote desktop media play is redirected, may further comprise the steps:
Be connected to server by client computer, play the remote media file on the described server;
Obtain the local path of described media file, from the local path of described media file, extract the media file name, generate the redirected path of sign prefix+network access path prefix+media file name;
Load described media file and monitoring service port according to described media file local path, wait for that described client computer connects to obtain described media file;
Described redirected path is write the client computer of virtual map in the remote session;
By RDP described redirected path is write local resource in the described client computer;
Obtain the data in the local resource that remote session uses, during the redirected path finding to begin, remove described sign prefix, obtain the media file network access path of network access path prefix+media file name with described sign prefix;
According to described media file network access path, the local media player of having installed of startup is with connection and obtain described media file;
Transmit the original media file data by file transfer protocol (FTP) to described media player, by described media player the described media file data of receiving is looked audio decoder and play.
2. realize the system that the remote desktop media play is redirected, comprising:
Client computer is connected on the server, plays the remote media file on the described server; Obtain the data in the local resource that remote session uses, during the redirected path finding to begin, remove described sign prefix, obtain the media file network access path of network access path prefix+media file name with the sign prefix; According to described media file network access path, start the local media player of having installed to connect and to obtain described media file, the described media file data of receiving is looked audio decoder play;
Server obtains the local path of described media file, extracts the media file name from the local path of described media file, generates the redirected path of sign prefix+network access path prefix+media file name; Load described media file and monitoring service port according to described media file local path, wait for that described client computer connects to obtain described media file; Described redirected path is write the client computer of virtual map in the remote session; By RDP described redirected path is write local resource in the described client computer.
3. the client computer that is redirected as realization remote desktop media play as described in the claim 2 comprises:
The remote desktop client is connected to the remote desktop service end of described server, plays described remote media file; By RDP described redirected path is write the local resource that remote session uses;
The local resource that remote session uses is preserved described redirected path;
Start playing module, inquiry is also obtained data in the local resource that described remote session uses, during redirected path that discovery begins with described sign prefix, remove described sign prefix, obtain the media file network access path of network access path prefix+media file name; According to described media file network access path, start the local described media player of having installed;
Media player, according to described media file network access path, the media file transport module that connects described server obtains described media file, the described media file data of receiving is looked audio decoder play.
4. the server that is redirected as realization remote desktop media play as described in the claim 2 comprises:
The remote desktop service end when being connected with described remote desktop client, is called the redirected path generation module, by RDP described redirected path is write local resource in the described client computer;
The redirected path generation module obtains the local path of described media file, extracts the media file name from the local path of described media file, generates the redirected path of sign prefix+network access path prefix+media file name; Described redirected path is write the client computer of virtual map in the remote session, and send described redirected path to described remote desktop service end;
The media file transport module loads described media file and monitoring service port according to described media file local path, waits for described client computer connection and obtains described media file; When described client computer is obtained described media file, transmit the original media file data to the media player of described client computer by file transfer protocol (FTP).
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| CN104040995B (en) * | 2012-12-07 | 2017-04-12 | 华为技术有限公司 | Multimedia redirection method, multimedia server, and computer system |
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| CN104067627B (en) * | 2013-02-07 | 2017-08-04 | 华为技术有限公司 | Method, device, system and computer-readable medium that a kind of video is redirected |
| CN104067627A (en) * | 2013-02-07 | 2014-09-24 | 华为技术有限公司 | Video redirecting method, device, system and computer readable medium |
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| CN104301687A (en) * | 2014-10-27 | 2015-01-21 | 中国联合网络通信集团有限公司 | Camera video processing method and corresponding equipment applied to virtual desktop environment |
| CN104301687B (en) * | 2014-10-27 | 2018-03-23 | 中国联合网络通信集团有限公司 | Camera video processing method and relevant device applied to virtual desktop environment |
| CN105611394A (en) * | 2015-12-21 | 2016-05-25 | 福建时迅信息科技有限公司 | Method and system for redirecting video under VDI environment |
| CN107249032A (en) * | 2017-06-15 | 2017-10-13 | 华中师范大学 | A kind of synchronous browsing apparatus of Courseware Resource transmitted based on remote desktop and its method of work |
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