CN101883097A - Method and device for realizing that server equipment shares screen of client equipment - Google Patents
Method and device for realizing that server equipment shares screen of client equipment Download PDFInfo
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- CN101883097A CN101883097A CN2010102026328A CN201010202632A CN101883097A CN 101883097 A CN101883097 A CN 101883097A CN 2010102026328 A CN2010102026328 A CN 2010102026328A CN 201010202632 A CN201010202632 A CN 201010202632A CN 101883097 A CN101883097 A CN 101883097A
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Abstract
The invention discloses a method and a device for realizing that server equipment shares a screen of client equipment. The realization method comprises the following steps of: establishing wired or wireless network connection between the server equipment and the client equipment; carrying out video coding on the screen of the server equipment by using the server equipment according to a preset video output format and simultaneously carrying out audio coding on the screen according to a preset audio output format; transmitting video coding data and audio coding data to the client equipment by using the server equipment through a wired or wireless network; and then decoding and outputting the received audio coding data by using the client equipment, wherein the client equipment is in particular a television. Since the server equipment and the client equipment are connected by the wired or wireless network, the invention can also realize the audio share in the client equipment when transmitting the video of the server equipment to the client equipment and realizing the share of the screen of the client equipment so that the transmission distance between the server equipment and the client equipment is enlarged, thereby expanding the using range of screen sharing space.
Description
Technical field
The present invention relates to the Screen sharing technology, specifically, relate to the implementation method and the device of that server equipment shares screen of client equipment, belong to the embedded system applied technical field.
Background technology
The Screen sharing technology mainly is in order to realize that wanting content displayed to project to small screen device shows on the large-screen so that the purpose of watching.The present solution of Screen sharing is to utilize the VGA connecting line to connect will share the equipment of screen and the screen equipment that is used to share, and the image resource that realization will be shared the equipment of screen shows on the screen of the screen equipment that is used to share.
There is following shortcoming and defect in this Screen sharing solution commonly used: two equipment that 1, require to connect must be supported the connecting line standard interface, have VGA interface or other and can support the interface shared, thereby limited sharable equipment and connected mode thereof; 2,,, thereby limited distance between two equipment that are connected because of the connecting line limited length owing to need the VGA connecting line to carry out line to connect; 3, be subjected to the influence of VGA technology itself, there is loss in the image quality that shares on the screen, influences the screen display definition; 4, sharing of image resource can only be realized, audio frequency can not be shared.
Summary of the invention
The present invention is directed to the above-mentioned shortcoming and defect that the Screen sharing solution exists in the prior art, a kind of implementation method and implement device of that server equipment shares screen of client equipment are provided, by wired or wireless network connection service device equipment and client device, the video transmission of server apparatus to client device, is realized sharing of client device screen.
For realizing goal of the invention of the present invention, method of the present invention adopts following technical proposals to be achieved:
A kind of implementation method of that server equipment shares screen of client equipment comprises the steps:
Server apparatus sets up wired with client device or wireless network is connected;
Grasp the screen of server apparatus, the screen that grasps is carried out video coding according to default video output formats;
Server apparatus transfers to client device by wired or wireless network with video data encoder;
The video data encoder that client device decoding receives and exporting on its screen shows.
Aforesaid implementation method, can also realize that between server apparatus and client device audio frequency is shared, be specially: after server apparatus is set up wired with client device or wireless network is connected, also comprise the step of the audio frequency of server apparatus being encoded according to default audio output format, server apparatus transfers to client device by wired or wireless network simultaneously with coded audio data and video data encoder, carry out voice playing and video demonstration behind coded audio data that the client device decoding receives and the video data encoder, be implemented in the audio-frequency information and the video information of while Play Server equipment on the client device.
Aforesaid implementation method is the processing speed of accelerating client device, the smoothness that guarantees picture and sound, after client device receives the data of server apparatus transmission, and first buffer memory, and then decoding.
Aforesaid implementation method is found networked devices automatically but server apparatus and client device pass through to find automatically agreement, and then is set up wired or the wireless network connection.
Described implementation method, described client device is preferably the television set with large display screen.
For realizing goal of the invention of the present invention, device of the present invention adopts following technical proposals to be achieved:
A kind of implement device of that server equipment shares screen of client equipment comprises server apparatus and client device,
Described server apparatus has:
Network communication module is used for carrying out network with described client device and is connected and communicates by letter;
Video obtains and coding module, is used to grasp the screen of server apparatus, and according to default video output formats the screen that grasps is carried out video coding;
Described client device has:
Network communication module is used for carrying out network with described server apparatus and is connected and communicates by letter;
The video decode module is used for the video data encoder that is received from server apparatus is decoded and exported.
Aforesaid implement device, can also realize that between server apparatus and client device audio frequency is shared, be specially: described server apparatus also includes the audio coding module, be used for the audio frequency of server apparatus being encoded, and transfer out by described network communication module according to default audio output format; Described client device also includes the audio decoder module, is used for the coded audio data that is received from server apparatus is decoded and exported.
Aforesaid implement device, described client device also includes cache module, is used for the coded data that buffer memory is received from server apparatus, with the processing speed of accelerating client device, the smoothness that guarantees picture and sound.
Aforesaid implement device also is respectively arranged with automatic discovery module in described server apparatus and the client device, but is used for finding automatically the networked devices of network.
Aforesaid implement device, described client device is preferably the television set with large display screen.
Compared with prior art, advantage of the present invention and good effect are: the present invention is by wired or wireless network connection service device equipment and client device, with the video transmission of server apparatus to client device, realize sharing of client device screen, make the transmission range between server apparatus and the client device become big, expanded the space scope of application of Screen sharing; Server apparatus can be determined suitable video output formats according to picture displayed fluency and definition on the shared screen, and according to video output formats video is carried out coding transmission and show to sharing screen, improved the definition and the fluency of shared on-screen displays; Server apparatus can be encoded to audio frequency as required, and be transmitted through the network to client device output together with video, realized sharing synchronously of audio frequency, video, the content that has satisfied to greatest extent small screen device shares to the demand that large-screen equipment is watched.
After reading the specific embodiment of the present invention in conjunction with the accompanying drawings, other characteristics of the present invention and advantage will become clearer.
Description of drawings
The workflow diagram of server apparatus among embodiment of Fig. 1 implementation method of the present invention;
Fig. 2 is the workflow diagram of client device among Fig. 1 embodiment;
Fig. 3 is that the structure of an embodiment of implement device of the present invention constitutes block diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in further detail.
At first briefly set forth basic realization thought of the present invention: the present invention is directed in the existing Screen sharing solution, special-purpose connecting line such as VGA connects that the equipment distance that two equipment exist is limited owing to needing, loss causes shortcomings such as display frame is second-rate, and a kind of implementation method and implement device of Screen sharing is provided.In implementation method of the present invention, the equipment that will share screen is as server apparatus, and the equipment that will have shared screen is as client device, sets up wired between server apparatus and client device or wireless network connects, the data that will share by Network Transmission; Simultaneously, in transmission during shared data, according to default video output formats the screen of the server apparatus that grasps is carried out video coding again earlier at the server apparatus end, to guarantee to share the fluency and the definition of the picture of exporting behind the screen.
In addition, by network except the video image that can transmission server equipment will share, the voice data of server apparatus can also be carried out audio decoder as required, and transfer to client device with video data encoder, be implemented in the audio frequency of share service device equipment on the client device, satisfy the different demands of user sharing.
As further optimization to technique scheme, be to save Internet resources, server apparatus and client device are only just set up network and are connected when the needs shared data.Specifically can adopt IGRS protocol etc. to find that automatically agreement need to find the equipment of networking automatically, and when finding networked devices is arranged, just between equipment, set up network and connect.
Based on above-mentioned basic realization thought, Fig. 1 and Fig. 2 show the workflow of an embodiment of the implementation method of that server equipment shares screen of client equipment of the present invention, and wherein, Fig. 1 is the workflow diagram of server apparatus among this embodiment; Fig. 2 is the workflow diagram of client device among this embodiment.In this embodiment, server apparatus can be mobile phone, PC etc., and client device is the television set with large display screen.
As shown in Figure 1, the course of work of server apparatus is among this embodiment:
S101: server apparatus starts service, prepares to share the screen of client device.
S102: search whether there is the client device that to network.
S103: judge whether to exist the client device that to network.If there is execution in step S105; Otherwise, execution in step S104.
S104: when the client device of not finding to network, the time-delay wait, and then go to step S102, continue to search the discovery client device.
S105: when finding the client device that can network is arranged, set up network with client device and be connected.
The connection network of being set up can be a cable network, also can be wireless networks such as Wi-Fi, Zigbee, WiMax, bluetooth, but so long as between server apparatus and client device the method for network access of proper communication get final product.
S106: with after client device is set up network and is connected, server apparatus will grasp its current screen, and according to default video output formats the screen that grasps be carried out video coding.
Default video output formats is according to the fluency of sharing picture and suitable a kind of coded format of definition choose reasonable, as H.264, MPEG-2, WMV etc.
S107: server apparatus is encoded to its audio frequency that will share according to default audio output format.This step is an optional step, carries out when needs are shared audio frequency, if do not need to share audio frequency, then skips this step.
S108: server apparatus transfers to client device by being connected with network that client device is set up simultaneously with above-mentioned video data encoder and coded audio data, with the synchronous transmission that realizes Voice ﹠ Video with share.If the audio coding of execution in step S107 does not then only need by the Network Transmission video data encoder.
As shown in Figure 2, with Fig. 1 in the course of work of the corresponding client device of the server apparatus course of work as follows:
Whether S201: client device is opened receiving function, exist requirement to share the server apparatus of its screen by the automatic search of automatic discovery agreement.
S202: judge whether to find to have service to open.If execution in step S204 is arranged; Otherwise, execution in step S203.
S203: finding no the service unlatching, promptly do not searching when needing to share the server apparatus of screen, delaying time and wait for, and then going to step S201 continuation search discovery automatically.
S204:, when promptly searching the server apparatus of the shared screen of requirement, set up network with server apparatus and be connected finding have service to open.
The connection network of being set up can be a cable network, also can be wireless networks such as Wi-Fi, Zigbee, WiMax, bluetooth, but so long as between server apparatus and client device the method for network access of proper communication get final product.
S205: reception server equipment is by the video data encoder and the coded audio data of Network Transmission.
S206: the coded data that buffer memory receives.The purpose of carrying out this step is in order to accelerate client device to processing speed of data, to guarantee the fluency of picture and sound.
S207: from buffer memory, read coded data and decoding,, be presented at after the decoding on the display screen of client device for video data; For voice data, play by its audio-frequence player device the decoding back.
Utilize the implementation method of the foregoing description, the effective space scope of application of extended screen technology of sharing, transfer audio files and video file simultaneously, and can guarantee the clear and smooth of picture.Implementation method of the present invention makes that Screen sharing becomes simple more, application is more extensive, helps to promote user's experience effect.
Fig. 3 is that the structure of an embodiment of implement device of that server equipment shares screen of client equipment of the present invention constitutes block diagram.
As shown in Figure 3, the implement device of this embodiment comprises server apparatus 31 and client device 32.
Connect between two equipment, setting up network, and the transmission shared data, server apparatus 31 has network communication module 311, and client device 32 also has network communication module 321.Network communication module 311 and network communication module 321 can be the cable network module, also can be wireless network modules such as Wi-Fi, Zigbee, WiMax, bluetooth.
For realizing sharing of server apparatus video data, in server apparatus 31, also be provided with video and obtain precoding module 312.This module is used to grasp the current display screen of server apparatus 31 on the one hand, on the other hand the screen that grasps is carried out video coding according to default video output formats, so that Network Transmission.Default video output formats is according to the fluency of sharing picture and suitable a kind of coded format of definition choose reasonable, as H.264, MPEG-2, WMV etc.
In server apparatus 31, audio coding module 313 can also be set, be used for the audio frequency of server apparatus 31 being encoded, share on the client device 32 so that realize the voice data of server apparatus 31 according to default audio output format.
Corresponding, in client device 32, be provided with video decode module 323 and audio decoder module 324.Wherein, video decode module 323 is used for the video data encoder that is received from server apparatus 31 is decoded and exported demonstration; And audio decoder module 324 is used for the coded audio data that is received from server apparatus 31 is decoded and exported.
In addition, in client device 32, also be provided with cache module 322, the audio/video coding data of the server apparatus 31 that network communication module 321 receives are cached in earlier in this cache module 322, and then transfer to respectively in video decode module 323 and the audio decoder module 324 and carry out video decode and audio decoder.
As further optimization to this embodiment technical scheme, be to save Internet resources, server apparatus and client device are only just set up network and are connected when the needs shared data.For this reason, in server apparatus 31 and client device 32, be respectively arranged with automatic discovery module 314 and find module 325 automatically, can need find the equipment of networking automatically by adopting automatic discovery agreements such as IGRS protocol, and ability is set up the network connection between equipment when finding networked devices is arranged.
The course of work of the implement device of this embodiment is: server apparatus 31 finds automatically that by it module starts service, finds whether there is the client device that can network in the network automatically; Whether client device 32 finds automatically that by it module 325 starts receiving function, and exist needs to share the service of the server apparatus of screen in the search network automatically.After finding the server apparatus and client device that can network, server apparatus 31 obtains 312 pairs of coding video datas of precoding module by its video, obtains video data encoder; Encode by 313 pairs of voice datas of audio coding module, obtain coded audio data.Video data encoder and coded audio data send by network communication module 311.Video data encoder and coded audio data that client device 32 receives from server apparatus 31 by its network communication module 321, and be stored in the cache module 322.At last, video decode module 323 reads video data encoder and decoding from cache module 322, show on its display screen then; Audio decoder module 324 reads coded audio data and decoding from cache module 322, then by its playback equipment output audio information.
Above embodiment is only in order to illustrating technical scheme of the present invention, but not limits it; Although the present invention is had been described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still can make amendment to the technical scheme that previous embodiment is put down in writing, perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the present invention's technical scheme required for protection.
Claims (10)
1. the implementation method of a that server equipment shares screen of client equipment is characterized in that, comprises the steps:
Server apparatus sets up wired with client device or wireless network is connected;
Grasp the screen of server apparatus, the screen that grasps is carried out video coding according to default video output formats;
Server apparatus transfers to client device by wired or wireless network with video data encoder;
The video data encoder that client device decoding receives and exporting on its screen shows.
2. implementation method according to claim 1, it is characterized in that, after server apparatus is set up wired with client device or wireless network is connected, also comprise the step of the audio frequency of server apparatus being encoded according to default audio output format, server apparatus transfers to client device by wired or wireless network simultaneously with coded audio data and video data encoder, carries out voice playing and video demonstration behind coded audio data that the client device decoding receives and the video data encoder.
3. implementation method according to claim 1 and 2 is characterized in that, after client device receives the data of server apparatus transmission, and first buffer memory, and then decoding.
4. implementation method according to claim 1 and 2 is characterized in that, but server apparatus and client device are found the protocol discovery networked devices by automatic, and then sets up wired or the wireless network connection.
5. implementation method according to claim 1 is characterized in that, described client device is a television set.
6. the implement device of a that server equipment shares screen of client equipment is characterized in that, comprises server apparatus and client device,
Described server apparatus has:
Network communication module is used for carrying out network with described client device and is connected and communicates by letter;
Video obtains and coding module, is used to grasp the screen of server apparatus, and according to default video output formats the screen that grasps is carried out video coding;
Described client device has:
Network communication module is used for carrying out network with described server apparatus and is connected and communicates by letter;
The video decode module is used for the video data encoder that is received from server apparatus is decoded and exported.
7. implement device according to claim 6, it is characterized in that, described server apparatus also includes the audio coding module, is used for according to default audio output format the audio frequency of server apparatus being encoded, and transfers out by described network communication module; Described client device also includes the audio decoder module, is used for the coded audio data that is received from server apparatus is decoded and exported.
8. according to claim 6 or 7 described implement devices, it is characterized in that described client device also includes cache module, be used for the coded data that buffer memory is received from server apparatus.
9. according to claim 6 or 7 described implement devices, it is characterized in that, also be respectively arranged with automatic discovery module in described server apparatus and the client device, but be used for finding automatically the networked devices of network.
10. implement device according to claim 6 is characterized in that, described client device is a television set.
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| CN102118533A (en) * | 2010-12-22 | 2011-07-06 | 青岛海信宽带多媒体技术有限公司 | Realization method and realization device for playing mobile phone resources on television |
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| US9729673B2 (en) | 2012-06-21 | 2017-08-08 | Calgary Scientific Inc. | Method and system for providing synchronized views of multiple applications for display on a remote computing device |
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| CN103414894A (en) * | 2013-07-29 | 2013-11-27 | 上海凯统信息科技有限公司 | Wireless real-time screen transfer equipment and method |
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Application publication date: 20101110 |