CN102291368B - Method, device and system for playing remote multimedia file - Google Patents
Method, device and system for playing remote multimedia file Download PDFInfo
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Abstract
The invention discloses a method, device and system for playing a remote multimedia file, which are applied to a graphical user interface browser system and can be used for playing a multimedia file like local operation during the operation of a remote application program on a client. The method comprises the following steps of: receiving a request message of the client; running the application program; when playing of the multimedia file in the running process of the application program is monitored, intercepting generated multimedia data streams; generating corresponding multimedia acquisition indicating information based on the multimedia data streams; transmitting the multimedia acquisition instructing information to the client; and instructing the client to acquire and play a corresponding multimedia file according to the multimedia acquisition instructing information. According to the invention, the aims of remotely playing the multimedia file independent of the remote playing environment and locally playing the multimedia file are fulfilled. The invention further discloses a client device, a server device and a system for playing the remote multimedia file.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method, the Apparatus and system of playing remote multimedia file.
Background technology
The development mode framework of current two large main flows is user terminal/server framework and browser/server framework, and wherein, user terminal/server framework has huge customers, and the management software of many maturations is all based on user terminal/server framework.At present, graphic user interface browser is the emerging technology combining user terminal/server framework and browser/server framework advantage, effectively can utilize the ripe function of existed system, avoid redesigning, reduce overlapping development, the independence to particular clients software can be accomplished again, user is accessed whenever and wherever possible and uses application client interface.
Graphic user interface browser is browsed by the application program of graphic user interface browser to far-end and operated, thus use the various functions that provide of application program, provides the function browsing and use application program as browsing page.By using graphic user interface browser, user does not need the client software installing this application program in this locality, only need graphic user interface browser to be installed to local client computer, then the network address of this application program place server is logged in, just can this application program of remote operation.The important feature of graphic user interface browser is independence, namely the working method of graphic user interface browser and application program and the function that provides have nothing to do, this makes graphic user interface browser have applicability widely, can really accomplish " browser ".
In graphic user interface browser, when the application program play multimedia file of server end, ensureing under the prerequisite that the application program of graphic user interface browser and far-end is separate, client is difficult to obtain the multimedia file that the also synchronous server playing far-end broadcasts.Such as, in graphical user interface browser, the application program of server end is when displaying audio file, the method that operation platform provides multiple audio frequency to play, and the form of the audio data stream of various audio frequency playing method generation is all different, in this case, application program operation platform can only intercept the audio data stream of different-format, so, when the audio frequency playing method that the unknown server side of the graphic user interface browser of client uses, even if client can obtain above-mentioned audio data stream, be also difficult to successfully play.In a word, in present graphic user interface browser, under the prerequisite of application program independence ensureing client and server side, cannot when using the application program of graphic user interface browser operation far-end, the same play multimedia file of the local operation application program that coexists, and requiring when the application program play multimedia file of far-end in practical application, this locality also can synchronization gain audio visual effect.Such as, user is when by graphic user interface browser operation telecommunication network management system, when the telecommunication network management system of server end is reported to the police, not only on operation interface, send warning message, send the audible alert of " gross error " simultaneously, at this moment, just need the user of client by graphic user interface browser operation telecommunication network management system, except can seeing the warning message on interface, also can hear the audible alert of " gross error ".
In sum, need to seek a kind of method playing remote multimedia file, can in graphic user interface browser, under the separate prerequisite of application program of graphic user interface browser and server end ensureing client, client is when the application program of browse operation far-end, the same play multimedia file during the local operation application program that can coexist, meanwhile, also will meet the real-time of Long-distance Control and the requirement of low bandwidth.
Summary of the invention
The invention provides a kind of method playing remote multimedia file, to realize in graphic user interface browser, ensureing under the prerequisite that the application program of client and server end is separate, client is when the application program of browse operation far-end, the same play multimedia file during the local operation application program that can coexist, and meet the real-time of Long-distance Control and the requirement of low bandwidth.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
Play a method for remote multimedia file, comprising:
What server receives client sent is used to indicate the request message run application;
Server runs described application program, and when monitoring play multimedia file in described application program running, tackles the multimedia data stream produced;
Server, based on the multimedia data stream intercepted, generates corresponding multimedia and obtains indication information, and mail to client, indicates this client to obtain indication information according to described multimedia and obtains and play corresponding multimedia file.
A kind of server, comprising:
Receiving element, for receive client send be used to indicate the request message run application;
First processing unit, for running described application program, and when monitoring play multimedia file in described application program running, tackles the multimedia data stream produced;
Second processing unit, for based on the multimedia data stream intercepted, generates corresponding multimedia and obtains indication information, and mail to client, indicates this client to obtain indication information according to described multimedia and obtains and play corresponding multimedia file.
Play a system for remote multimedia file, comprising:
Client, for sending the request message run application to server end, and after the multimedia receiving server transmission obtains indication information, obtains indication information according to described multimedia and obtains and play corresponding multimedia file;
Server, for receive client send be used to indicate the request message run application after, run described application program, and when monitoring play multimedia file in described application program running, the multimedia data stream produced is tackled, generate corresponding multimedia based on the multimedia data stream intercepted and obtain indication information, and described multimedia acquisition indication information is mail to client, indicate this client to obtain indication information according to described multimedia and obtain and play corresponding multimedia file.
Based on technique scheme, in the embodiment of the present invention, generate multimedia based on the multimedia data stream intercepted and obtain indication information, and this multimedia acquisition indication information is sent to client, instruction client obtains the method carrying out after indication information obtains multimedia file playing according to multimedia, achieve when the application program play multimedia file of server end, obtain multimedia data stream, after further generation multimedia obtains indication information, instruction client obtains indication information according to this multimedia and generates multimedia file or find existing multimedia file in client, thus at this multimedia file of client terminal playing, reach when far-end play multimedia file, do not rely on the environment that far-end plays this multimedia file, local also can the object of play multimedia file equally.And, the multimedia file that client obtains, after multimedia data stream being tackled by the operation platform of server end, to be transformed by a series of, not directly obtained by the application program of server end, make the application program of client and server end there is no direct effect relation, ensure that the feature of graphic user interface browser independence and independence.Simultaneously, in the embodiment of the present invention, server unit obtains indication information to client terminal device by sending multimedia, and be not directly send multimedia data stream to transform the document data flow obtained, when multimedia acquisition indication information is only numbering, the flow that can greatly reduce remote transmission and the bandwidth taken, thus be conducive to meeting the real-time of Long-distance Control and the requirement of low bandwidth.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram playing remote multimedia file in the embodiment of the present invention;
Fig. 2 is client terminal device structure chart in the embodiment of the present invention;
Fig. 3 is server unit structure chart in the embodiment of the present invention;
Fig. 4 is the flow chart of system initialization in the embodiment of the present invention;
Fig. 5 is the detail flowchart playing remote multimedia file in the embodiment of the present invention.
Embodiment
In order to overcome in graphic user interface browser, ensureing under the prerequisite that the application program of client and server end is separate, when the application program of client operation far-end, can not the defect of play multimedia file, and meet the real-time of Long-distance Control and the requirement of low bandwidth, in the embodiment of the present invention, provide a kind of method playing remote multimedia file, achieve and ensureing under the prerequisite that the application program of client and server end is separate, during the application program of client operation far-end, the same during the local operation application program that coexists can play multimedia file, and meet real-time and the bandwidth requirement low of Long-distance Control, the method is: server receives client send be used to indicate the request message run application after, run described application program, monitor in described application program running need play multimedia file time, the multimedia data stream that interception produces, after generating corresponding multimedia acquisition indication information based on this multimedia data stream, described multimedia is obtained indication information and issues client, and indicate client to obtain indication information acquisition and play multimedia file according to described multimedia.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Consult shown in Fig. 1, in the embodiment of the present invention, the system playing remote multimedia file mainly comprises client 10 and server 11, wherein,
Client 10, for sending the request message run application to server end, and after the multimedia receiving server transmission obtains indication information, obtains indication information according to described multimedia and obtains and play corresponding multimedia file;
Server 11, for receive client send be used to indicate the request message run application after, run described application program, and when monitoring play multimedia file in described application program running, to tackling media data flow of producing, generate corresponding multimedia based on the multimedia data stream intercepted and obtain indication information, and described multimedia acquisition indication information is mail to client, indicate this client to obtain indication information according to described multimedia and obtain and play corresponding multimedia file.
Consult shown in Fig. 2, in the embodiment of the present invention, client 10 mainly comprises following processing unit:
Transmitting element 101, is used to indicate for sending to server the request message run application;
Receive processing unit 102, the multimedia sent for reception server obtains indication information, obtains indication information obtain and play corresponding multimedia file according to described multimedia.
Consult shown in Fig. 3, in the embodiment of the present invention, server 11 mainly comprises following processing unit:
Receiving element 111, for receive client send be used to indicate the request message run application;
First processing unit 112, for running described application program, and when monitoring play multimedia file in described application program running, tackles the multimedia data stream produced;
Second processing unit 113, for according to the multimedia data stream intercepted, generates corresponding multimedia and obtains indication information, and mail to client, indicates this client to obtain indication information according to described multimedia and obtains and play corresponding multimedia file.
In following examples, it is that server is based on the multimedia data stream intercepted that multimedia obtains indication information, obtain corresponding document data flow, and generate corresponding file-related information based on described document data flow, this file-related information is obtained indication information as multimedia, and multimedia of the present invention obtains indication information and includes but not limited to file-related information.
In the examples below, multimedia acquisition indication information is described for file-related information.
Meanwhile, multimedia file of the present invention includes but not limited to audio file, and in following examples, multimedia file is for audio file.
Based on said system framework, consult shown in Fig. 4, client 10 is carried out initialized key step to the system playing far-end audio file and is comprised:
Step 401: the audio file that scanning is local, collects the file data stream information that audio file is corresponding.
Generally, the file data stream information that audio file is corresponding uniquely can determine an audio file, called file traffic flow information comprises the byte of the size of document data flow and the initial some of document data flow, in the embodiment of the present invention, the byte of the size of document data flow and the initial some of document data flow is used to characterize audio file, like this, can data volume be reduced, be conducive to the real-time and the low bandwidth that realize Long-distance Control.
Described document data flow is the binary data stream directly reading audio file acquisition, described binary data is to sample, quantize and encode the voice data that (modulation) obtain afterwards to the audio frame in digital audio and video signals, also includes modulation intelligence.
When the audio file of this locality is more, also following methods can be taked, to scan and after collecting file data stream information corresponding to local audio file, this file data stream information is kept in certain local file, later when using graphic user interface browser, only needing to call this file and can obtain file data stream information corresponding to local audio file, and not needing again to collect, to save the time that initialization takies, raise the efficiency.
Step 402: file data stream information corresponding for the above-mentioned audio file collected is sent to server end, and indicates server end be numbered above-mentioned file data stream information and above-mentioned numbering returned.
Wherein, after server unit 11 is numbered the file data stream information received, at the corresponding relation of the above-mentioned file data stream information of local cache and numbering.
Step 403: the above-mentioned numbering that reception server device 11 returns, sets up and preserves the corresponding relation of above-mentioned numbering and above-mentioned file data stream information.
Client is when the application program of each browse operation far-end, all to carry out initialization to the system playing far-end audio file, and after the graphic user interface browser of client cuts out corresponding application program, again again this application program of browse operation time, also need again to carry out initialization to the system playing far-end audio file, like this, ensure in graphic user interface browser, the independence of client and server end application program, ensures the independence between client and server end application program.
Based on above-mentioned principle, consult shown in Fig. 5, in the embodiment of the present invention, realize the local key step playing far-end audio file and comprise:
Step 501: what server end sent according to the client received is used to indicate the request message run application, and runs application.
When application program needs displaying audio file in running, first find this audio file and be converted to the form of document data flow, then according to the audio frequency playing method that operation platform provides, after described document data flow being converted to the audio data stream of corresponding format, call audio frequency playing method corresponding with specified format in operation platform, perform playback action.
Described process document data flow being converted to audio data stream is, the modulation intelligence comprised in extraction document data flow, according to described modulation intelligence, demodulation is carried out to the binary audio information in document data flow, be converted to the form of audio frame, described audio data stream is made up of described audio frame just, in addition, Play Control action message, the length information of audio frame and modulation intelligence is also comprised.
Such as, for the audio file of WMA form, when playing this audio file, read this audio file and can obtain binary document data flow, this document data flow comprises PCM modulation intelligence, extract after this modulation intelligence carries out PCM demodulation to the binary voice data comprised in document data flow, be converted to the form of audio frame, form audio data stream by the length information of described audio frame, PCM modulation intelligence, single/loop play, audio frame.
Step 502: when calling the described audio frequency playing method of operation platform in monitoring server to described application program running, before described application program performs playback action, function program is added, in order to tackle the described playback action information of described application program and described audio data stream in the described audio frequency playing method that operation platform is corresponding.
Wherein, the broadcasting taked when described playback action comprises displaying audio file starts, play stopping, loop play, single play etc.
Such as, the VPI interface in Java operation platform can provide multiple audio frequency playing method.
Step 503: server judges the document data flow whether existed in buffer memory corresponding to above-mentioned audio data stream, if there is no, modulation intelligence is extracted from the described audio data stream intercepted, with spanned file data flow after modulating the audio frame in audio data stream according to described modulation intelligence, and the corresponding relation between the above-mentioned audio stream information of buffer memory, above-mentioned document data flow and above-mentioned audio stream information and above-mentioned file data stream information.
During owing to playing same audio file, the form of the audio data stream that application program adopts different audio frequency playing methods to produce is different, if directly send the described audio data stream of interception to client, the audio frequency playing method of client is not also supported to a great extent, so need audio data stream to be converted to document data flow, the flow simultaneously needed owing to directly sending audio data stream will be far longer than the flow shared by transfer files data flow, in order to the requirement of the real-time and low bandwidth that ensure Long-distance Control, also send again after needing that audio data stream is converted to document data flow.
Wherein, when audio data stream described in buffer memory or document data flow, the byte of the some only needing the size of audio data stream described in buffer memory and the initial byte of some of audio data stream or the size of document data flow and document data flow initial, usually, after finishing playing first, just can exist should corresponding relation between the information of the information of audio data stream of audio file, document data flow and this audio data stream and the information of document data flow in buffer memory.
Step 504: server generates corresponding file-related information according to described document data flow, if there is not the numbering corresponding with described document data flow in buffer memory, it is then above-mentioned document data flow numbering, and the corresponding relation of the above-mentioned file data stream information of buffer memory and numbering, described file-related information is the combination of described document data flow and described numbering, otherwise there is the numbering corresponding with described document data flow in buffer memory, described file-related information is described numbering.
Wherein, when playing this audio file first, in buffer memory, there is not the numbering corresponding with above-mentioned document data flow, illustrate that client does not exist corresponding audio file.
Step 505: server sends above-mentioned file-related information to client, and after indicating client to obtain described document data flow according to described file-related information, obtain based on this document data flow and play corresponding audio file.
Wherein, when the described file-related information that client receives is the combination of described document data flow and numbering, described document data flow is saved in the audio file that local generation is new, and the corresponding relation of this file data stream information of buffer memory and numbering, so that next time is when playing this audio file, server is not needed to send document data flow, directly can find this audio file by numbering, like this, the flow sending document data flow and take can be saved, be conducive to the real-time and the bandwidth requirement low that meet Long-distance Control.
Wherein, when the described file-related information that client receives is described numbering, from buffer memory, finds corresponding file data stream information according to described numbering, and then find corresponding audio file from this locality, then perform corresponding playback action.
Be described below by enumerating the method for specific embodiment to the broadcasting far-end audio file of the embodiment of the present invention.
Example 1: during the initialization of graphic user interface browser, client collects audio file A in this locality, the file data stream information of audio file A is sent to server end, and after receiving the numbering 1 that server returns, the file data stream information of buffered audio file A and the corresponding relation of numbering 1, meanwhile, the corresponding relation of the server side also above-mentioned file data stream information of buffer memory and numbering 1;
Server end runs application according to the indication information of client;
Application program needs to play local audio file A in running, first audio file A is found, reading audio file A is document data flow A, according to certain audio frequency playing method that operation platform provides, document data flow A is converted into the audio data stream A of corresponding format, then calls the audio frequency playing method that operation platform is corresponding with specified format;
When monitoring server is to the audio frequency playing method of application call operation platform, in the described audio frequency playing method that operation platform is corresponding, add function program, to tackle playback action information and audio data stream;
Server fails the document data flow A finding audio data stream A corresponding in the buffer, audio data stream A is converted into document data flow A, and the information of buffered audio data stream A, corresponding relation between the information of document data flow A and audio data stream A and the information of document data flow A;
Server find in the buffer document data flow A corresponding be numbered 1, illustrate that client exists audio file corresponding to document data flow A, then server generate file-related information be numbering 1, file-related information is sent to client;
Client finds corresponding file data stream information according to file-related information numbering 1, after finding audio file A further, performs corresponding playback action.
Example 2: on the basis of embodiment 1, application program needs to play local audio file B, application program is converted into document data flow B after finding audio file B, according to the audio frequency playing method that operation platform provides, document data flow B is converted into the audio data stream B of corresponding format, then calls the described audio frequency playing method of operation platform;
When monitoring server is to the audio frequency playing method of application call operation platform, in the described audio frequency playing method that operation platform is corresponding, add function program, to tackle playback action information and audio data stream;
Server fails the document data flow B finding audio data stream B corresponding in the buffer, audio data stream B is converted into document data flow B, and the information of buffered audio data stream B, corresponding relation between the information of document data flow B and audio data stream B and the information of document data flow B;
Server end fails to find the numbering that document data flow B is corresponding in the buffer, and illustrate that client does not exist audio file B, server is numbered 2 to document data flow B, and the corresponding relation of the information of cache file data stream B and numbering 2;
Document data flow B and numbering 2 are sent to client as file-related information by server end;
Client preserves document data flow B to generate audio file B in this locality, perform corresponding playback action, simultaneously the information of cache file data stream B and the corresponding relation of numbering 2.
Example 3: on the basis of embodiment 2, this plays local audio file B to application program again, application program is converted into document data flow B after finding audio file B, according to the audio frequency playing method that operation platform provides, document data flow B is converted into the audio data stream B of corresponding format, then calls the described audio frequency playing method of operation platform;
When monitoring server is to the audio frequency playing method of application call operation platform, in the described audio frequency playing method that operation platform is corresponding, add function program, to tackle playback action information and audio data stream;
Server obtains the information of corresponding document data flow B according to audio data stream B from buffer memory;
Server obtains numbering 2 according to the information of document data flow B further from buffer memory;
Numbering 2 is sent to client as file-related information by server;
Client knows the information of the document data flow 2 corresponding with numbering 2 in this locality, find corresponding audio file B further, performs playback action.
The embodiment of the present invention is premised on the independence ensureing graphic user interface browser, in graphic user interface browser, the application program of client and server side is completely independently, the function provided of application program and the working method of application program, all have nothing to do with client, this is the important feature of graphic user interface browser.
Based on above-described embodiment, in graphic user interface browser, when solving audio frequency playback problem when Client browse operates the application program of far-end, the application program of server end is when displaying audio file, after being tackled by the operation platform pair audio data stream corresponding with audio frequency playing method, be converted into document data flow, and this document data flow and the numbering of correspondence or the numbering of this document data flow are sent to client, to generate in client or to find corresponding audio file, realize audio frequency playback action, solve in existing graphic user interface browser, when the application program of Client browse operation far-end, the local problem can not carrying out audio frequency broadcasting, simultaneously, by the voice data intercepted is flowed through a series of conversion, generate in client or find the method for audio file, make at this audio file of client terminal playing and do not rely on the environment playing this audio file.And the audio file that client finally obtains, be after audio data stream being tackled by operation platform, be transformed by a series of, directly to be obtained by application program, like this, ensure that the independence of graphic user interface browser and the feature of independence.
In the embodiment of the present invention, by each when client opens application program, carry out the operation of system initialization, the method that the audio file information of client sends to server to be numbered, the audio file that the audio file of client and server side application use is set up and contacts, like this, if the audio file that the application program of server end uses, client exists, then do not need again this audio file to be sent to client from server end, greatly reduce the network bandwidth that Long-distance Control takies.
Simultaneously, the application program of server end is when first time plays this audio file, if there is not this audio file in client, then document data flow corresponding for this audio file and numbering to be sent from server end and be saved in client, like this, when re-using this audio file, only need numbering corresponding for this audio file to be sent to client from server side later, the network bandwidth that Long-distance Control takies can be greatly reduced, be also of value to the real-time realizing Long-distance Control.
In sum, the embodiment of the present invention, can in graphic user interface browser, ensureing under the prerequisite that the application program of client and server end is separate, realize when the application program of Client browse operation far-end, this application program of local operation that coexists is the same can carry out audio frequency broadcasting, and can meet the real-time of Long-distance Control and the requirement of low bandwidth.
Above-described embodiment, be equally applicable to multimedia file, namely when far-end play multimedia file, when ensureing independence and the independence of graphic user interface browser, realize playing this multimedia file in this locality, and do not rely on the environment that far-end plays this multimedia file, thus promote the experience of user.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. play a method for remote multimedia file, it is characterized in that, comprising:
What server receives client sent is used to indicate the request message run application;
Server runs described application program, and when monitoring play multimedia file in described application program running, tackles the multimedia data stream produced;
Server is based on the multimedia data stream intercepted, generate corresponding multimedia and obtain indication information, concrete, described server is based on the multimedia data stream intercepted, obtain corresponding document data flow, and generate corresponding file-related information based on described document data flow, and this file-related information is obtained indication information as multimedia; And mail to client, indicate this client to obtain indication information according to described multimedia and obtain and play corresponding multimedia file.
2. the method for claim 1, is characterized in that, described server, based on the multimedia data stream intercepted, obtains corresponding document data flow, comprising:
Judge the local document data flow whether prestoring corresponding described multimedia data stream and formed, if so, then directly obtain described document data flow; Otherwise, from described multimedia data stream, extract modulation intelligence, after described multimedia data stream being modulated according to described modulation intelligence, form corresponding document data flow, and preserve described document data flow.
3. method as claimed in claim 1 or 2, it is characterized in that, described server generates corresponding file-related information based on described document data flow, comprising:
Judge the local identification information that whether there is corresponding described document data flow and store, if so, then using described identification information as file-related information; Otherwise corresponding described document data flow arranges corresponding identification information, and using arrange identification information and described document data flow as file-related information.
4. the method for claim 1, is characterized in that, this client described obtains indication information according to described multimedia and obtains and play corresponding multimedia file, comprising:
The identification information comprised in client acquisition file-related information also judges whether client this locality preserves document data flow corresponding to described identification information, if, then directly obtain this document data flow, and play after obtaining multimedia file corresponding to described document data flow further; Otherwise, after obtaining corresponding document data flow according to described identification information from described file-related information, play again after generating corresponding multimedia file according to the document data flow obtained.
5. a server, is characterized in that, comprising:
Receiving element, for receive client send be used to indicate the request message run application;
First processing unit, for running described application program, and when monitoring play multimedia file in described application program running, tackles the multimedia data stream produced;
Second processing unit, for based on the multimedia data stream intercepted, generate corresponding multimedia and obtain indication information, concrete, described second processing unit, based on the multimedia data stream intercepted, when generating corresponding multimedia acquisition indication information, obtains corresponding document data flow, and generate corresponding file-related information based on described document data flow, and this file-related information is obtained indication information as multimedia; And mail to client, indicate this client to obtain indication information according to described multimedia and obtain and play corresponding multimedia file.
6. server as claimed in claim 5, it is characterized in that, described second processing unit, based on the described multimedia data stream intercepted, judges the local document data flow whether prestoring corresponding described multimedia data stream and formed, if so, then directly described document data flow is obtained; Otherwise, from described multimedia data stream, extract multi-medium data, form corresponding document data flow, and preserve described document data flow.
7. the server as described in claim 5 or 6, it is characterized in that, when described second processing unit generates corresponding file-related information according to described document data flow, judge the local identification information that whether there is corresponding described document data flow and store, if so, then using described identification information as file-related information; Otherwise corresponding described document data flow arranges corresponding identification information, and using arrange identification information and described document data flow as file-related information.
8. server as claimed in claim 5, is characterized in that, when described client obtains according to described multimedia acquisition indication information and plays corresponding multimedia file, comprising:
The identification information comprised in client acquisition file-related information also judges whether client this locality preserves document data flow corresponding to described identification information, if, then directly obtain this document data flow, and play after obtaining multimedia file corresponding to described document data flow further; Otherwise, after obtaining corresponding document data flow according to described identification information from described file-related information, play again after generating corresponding multimedia file according to the document data flow obtained.
9. play a system for remote multimedia file, it is characterized in that, comprising:
Client, for sending the request message run application to server end, and after the multimedia receiving server transmission obtains indication information, obtains indication information according to described multimedia and obtains and play corresponding multimedia file;
Server, for receive client send be used to indicate the request message run application after, run described application program, and when monitoring play multimedia file in described application program running, the multimedia data stream produced is tackled, generate corresponding multimedia based on the multimedia data stream intercepted and obtain indication information, and described multimedia acquisition indication information is mail to client, indicate this client to obtain indication information according to described multimedia and obtain and play corresponding multimedia file.
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| CN101047839A (en) * | 2006-03-30 | 2007-10-03 | 南京Lg同创彩色显示系统有限责任公司 | Acoustic and image generating method in radio flow media system |
| CN101299838A (en) * | 2008-07-04 | 2008-11-05 | 深圳华为通信技术有限公司 | Method, system and server for playing multimedia document |
| CN101702767A (en) * | 2009-10-28 | 2010-05-05 | 北京东方网力科技有限公司 | Time-based media playing method and system |
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| CN102291368A (en) | 2011-12-21 |
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