CN103248947A - Video multiple screen sharing method and system for achieving same - Google Patents
Video multiple screen sharing method and system for achieving same Download PDFInfo
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- CN103248947A CN103248947A CN2012100277706A CN201210027770A CN103248947A CN 103248947 A CN103248947 A CN 103248947A CN 2012100277706 A CN2012100277706 A CN 2012100277706A CN 201210027770 A CN201210027770 A CN 201210027770A CN 103248947 A CN103248947 A CN 103248947A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4108—Peripherals receiving signals from specially adapted client devices characterised by an identification number or address, e.g. local network address
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44231—Monitoring of peripheral device or external card, e.g. to detect processing problems in a handheld device or the failure of an external recording device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4621—Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
Abstract
The invention discloses a video multiple screen sharing method which comprises the steps as follows: A, a video sender obtains attribute information of at least one video playing window of a receiver; and B, the video sender performs corresponding different encoding on video data to be shared according to the obtained attribute information of video playing window of each receiver, and video data sets with different codes are sent to receivers corresponding to video playing window attributes. The invention further discloses a system for achieving the method. The system comprises a video sending end and at least one video receiving end. A portable device used for multiple screen sharing in a smart home system can play video information smoothly without distortion, and can achieve adaptive coding of shared video data with the variation of the attribute information of the video playing windows.
Description
Technical field
The present invention relates to the system that a kind of video multi-screen is shared method and realized this method.
Background technology
" integration of three networks " is known as " unification of three nets " again, and referring to telecommunications network, computer network and cable television network three macroreticulars can provide comprehensive multimedia communication services such as comprising voice, data, image by technological transformation." unification of three nets " really crossed over the fused business of these three kinds of heterogeneous networks of telecommunications network, computer network and cable television network---" multi-screen business ", namely merges the perfection that realizes service layer, control aspect and carrying aspect by multi-screen and merges.Realize that in wired home the multi-screen between the distinct device (for example large-screen Digital Television, notebook, ipad, smart mobile phone etc.) is shared, " multi-screen merges and shares " technology is brought in the intelligent domestic system, not only make intelligent domestic system have more practicality, also solved and in multi-screen is shared, realized the limitation that image information is shared.
In intelligent home system based, the small screen mancarried devices such as the information of large-screen terminal installation and mobile phone, pad shared, thereby made the user watch information such as television video at various intelligent terminals easily.In intelligent home system based, the user can change the state of the mancarried device application program of its use at any time according to its actual needs, for example when checking instant messages convergent-divergent just at the video playback window of displaying video.How to guarantee that mancarried device can either smooth and easy, undistorted ground displaying video information this moment, the adaptive coding that can realize share video data along with video playback window attribute change in information is a problem demanding prompt solution in order to effectively utilize system resource more again.
Summary of the invention
In view of this, the system that main purpose of the present invention is to provide the shared method of a kind of video multi-screen and realizes this method, can either smooth and easy, undistorted ground displaying video information to realize being used in intelligent home system based mancarried device that multi-screen shares, can realize the adaptive coding of shared video data again along with video playback window attribute change in information.
The invention discloses a kind of video multi-screen and share method, may further comprise the steps:
A, video transmit leg obtain the attribute information of at least one recipient's video playback window;
B, video transmit leg are according to described each recipient's video playback window attribute information of obtaining, the video data that will share is carried out corresponding different coding, and the video data group of each different coding is issued each recipient of corresponding video playback window attribute.
As seen from the above, the inventive method can realize being used in intelligent home system based mancarried device that multi-screen shares can either smooth and easy, undistorted ground displaying video information, can realize the adaptive coding of shared video data again along with video playback window attribute change in information.
In said method, also comprise:
The attribute information of its video playback window is monitored by video reception side, and when attribute information changes the attribute information of described video playback window is sent to the video transmit leg, returns steps A.
As seen from the above, the inventive method can realize the change according to the attribute information of described video playback window, adjusts the coding of sharing video data in real time, in order to can reduce the Video processing intensity of video reception side when described video playback window dwindles.
In said method, the attribute information of described video playback window comprises resolution, the current video broadcast window size of video reception side's video playback window.
In said method, described step B comprises following substep:
B1, described video transmit leg come to be classified in video reception side according to default resolution and/or decoding rate scope;
B2, described video transmit leg are encoded according to described default resolution and/or decoding rate to the video data that will share, and with its corresponding each the IP address, video reception side of the shared video data behind the variant coding respectively packing group send out.
As seen from the above, each video reception side can obtain the video data corresponding with its video playback window attribute, thereby has guaranteed the fluency of video reception side's video playback.
In said method, the described step with its corresponding each IP address, the video reception side packing of the shared video data behind the variant coding of substep B2 comprises:
Described default resolution and/or the certain limit value of the corresponding recipient's video playback of decoding rate scope window attribute;
Described coding comprises: the video playback window attribute information of judging video reception side falls into described default resolution and/or decoding rate scope, encodes according to this resolution and/or decoding rate scope preset coding method.
In said method, described preset coding method comprises: select the lower limit of described default resolution and/or decoding rate scope to described shared coding video data.
As seen from the above, select the interior lower limit of described default resolution and/or decoding rate scope to sharing coding video data, for wideer default resolution and/or decoding rate scope, can make all the video reception sides in this scope smooth playing share video.
In said method, described preset coding method comprises: select the maximum video window attributes information of the interior occurrence number of described default resolution and/or decoding rate scope to described shared coding video data.
As seen from the above, the above-mentioned preset coding method of the present invention's employing can make the most of video reception sides in a certain default resolution and/or the decoding rate scope have good video playback effect.
In said method, described preset coding method comprises: select the mean value of each video window attributes information of appearance of described default resolution and/or decoding rate scope to described shared coding video data.
Take into account when as seen from the above, the above-mentioned preset coding method of the present invention's employing can make a certain default resolution and/or the most of video reception sides in the decoding rate scope have good video playback effect and share the video data code efficiency.
The present invention also provides a kind of video multi-screen shared system that realizes said method, and this system comprises video sending end and at least one video receiver;
Described video sending end comprises:
The window attribute acquisition module is used for receiving the video playback window attribute information that each video receiver sends, and determines corresponding each different coded system of video playback window of each video receiver accordingly;
Coding module is connected with described window attribute acquisition module, is used for according to each different coded system of determining video file being carried out different codings, and is sent by described video sending end;
Described video receiver comprises:
The decoding playing module is used for the video data of its video playback window of correspondence that the decoded video receiving terminal receives, and uses the video playback window that sets to play;
The window attribute monitoring modular is connected with described decoding playing module, is used for the attribute information of the employed video playback window of the described decoding playing module of monitoring, and sends to described video sending end.
As seen from the above, system of the present invention can realize being used in intelligent home system based mancarried device that multi-screen shares can either smooth and easy, undistorted ground displaying video information, can realize the adaptive coding of shared video data again along with video playback window attribute change in information.
Description of drawings
Fig. 1 is that a kind of video multi-screen provided by the invention is shared method flow diagram;
Fig. 2 is the substep flow chart of step 100 among Fig. 1;
Fig. 3 is the substep flow chart of step 200 among Fig. 1;
Fig. 4 is the substep flow chart of step 300 among Fig. 1~400;
Fig. 5 is for realizing the structure chart of system for carrying out said process.
Embodiment
Below in conjunction with accompanying drawing, introduce the system that a kind of video multi-screen provided by the invention is shared method and realized this method in detail.Video receiver in the present embodiment (being used for the portable terminal that multi-screen is shared) can be portable digital equipments such as mobile phone, personal electric assistant (PDA), notebook computer.
If no specified otherwise, present embodiment has been set up the radio communication connection basis at least one video receiver and TV programme receiving system (video sending end) and has been implemented.Because setting up the radio communication connection at terminal room is techniques well known, so, this radio communication establishment of connection process is not repeated them here.
As shown in Figure 1, the shared method of a kind of video multi-screen provided by the invention may further comprise the steps:
Step 100: between video transmit leg and video reception side, set up the multi-screen video data and play shared.
This step comprises following substep as shown in Figure 2:
Step 101: video transmit leg (being generally the large-screen Digital Television in the household intelligent system) sends to the video reception side's (portable terminal) in this household intelligent system shares video playback invitation.
The attribute information of above-mentioned video playback window generally includes screen resolution, (corresponding with current video broadcast window size) current video broadcast window resolution, the decoding capability of video reception side, as decoding rate etc.
Step 200: the coding video data of video transmit leg to sharing, and the shared video data after will encoding carries out broadcast transmission.
This step comprises following substep as shown in Figure 3:
Step 201: the video transmit leg carries out filtering and eliminating noise to the video data of sharing.
In this substep, grasp the current screen image of sharing video data, and this screen picture is carried out the noise that Wiener filtering handles to eliminate this screen picture.Then grasp the next frame screen picture, and this frame screen picture is carried out Wiener filtering handle.Move in circles according to this, finish sharing the filtering and eliminating noise of video data.Wherein, Wiener filtering is treated to the known technology of signal process field, does not repeat them here.
Step 202: the video transmit leg classifies in video reception side according to default resolution and/or decoding rate scope.
In this step, default resolution and/or decoding rate scope can be a certain concrete resolution and/or decoding rate, or the scope between two different resolutions and/or the decoding rate.The video transmit leg is classified to video reception side according to default resolution and/or decoding rate scope, for example, the video playback window resolution is that the video reception side of 320*240 is a class, and the video playback window resolution is that the video reception side of 320*480 is next class, by that analogy.Default resolution and/or decoding range subdivision video reception side according to refinement more, for example, has same video broadcast window resolution but different decoding rate, the video playback window resolution is 320*240, but decoding rate is the video reception side of 256kbps is a class, and decoding rate is that the video reception side of 512kbps is another kind of; The video playback window resolution is 320*480, is a class but decoding rate is the video reception side of 256kbps, and decoding rate is that the video reception side of 512kbps is another kind of, by that analogy.
In addition, consider with the angle that shortens the coding stand-by period from reducing the video data group/cording quantity, can also relax default resolution and/or decoding rate scope, and in described scope the occurrence number of statistics certain video playback window attribute information or several video playback window attribute information, classified in video reception side according to this.For example, default resolution and/or decoding rate scope more than the 320*240, below the 320*480 and decoding rate between 216~512kbps, the combination occurrence number that counts which kind of video playback window resolution and decoding rate in this scope is maximum.Perhaps more broadly, the video playback window resolution is classified as a class in all the video reception sides more than the 320*240 and below 320*480, and maximum in such occurrence number that counts which kind of video playback window resolution, by that analogy.
The corresponding a kind of coding method of the resolution that each is default and/or decoding scope, for example, resolution is that default resolution and/or the decoding rate scope corresponding codes method of 320*240, decoding rate 256kbps are: will share video data and encode according to the resolution of 320*240 and the average decoding rate of 256kbps; Resolution is that default resolution and/or the decoding rate scope corresponding codes method of 320*240, decoding rate 512kbps is: will share video data and encode according to the resolution of 320*240 and the average decoding rate of 512kbps, by that analogy.
In addition, for wideer default resolution and/or decoding rate scope, can select the interior lower limit of this scope to sharing coding video data, for example, a certain default resolving range is 320*240 to 320*480, then this scope corresponding codes method is: unified resolution with 320*240 is to sharing coding video data, so that video can both smooth playing be shared by all the video reception sides in this scope; In order to make the most of video reception sides in a certain default resolution and/or the decoding rate scope have good video playback effect, can be according to the combination of occurrence number is maximum in the described scope video window attributes information or several described attribute informations to sharing coding video data, for example, if in the scope of video playback window resolution below the above 320*480 of 320*240, and according to the statistics for the attribute information of each video reception side, the video playback window resolution occurrence number of 320*320 at most (being that the current video playback window resolution in most of video reception sides is 320*320) wherein, then this scope corresponding codes method is: unified resolution with 320*320 is to sharing coding video data; Take into account when making a certain default resolution and/or the most of video reception sides in the decoding rate scope have good video playback effect and share the video data code efficiency, also can select median in the resolution preset and/or the decoding rate scope to sharing coding video data, for example, if in the scope of resolution more than 320*240, below the 320*480, then this scope corresponding codes method is: unified resolution with 320*360 is to sharing coding video data.Certainly, corresponding each scope also can be encoded by the mean value of each recipient's video window attributes information in this scope.
Wherein, the video reception side that does not exceed described default resolution and/or decoding rate scope for the video playback window information, can be according to default resolution and/or decoding rate scope corresponding codes method, for carrying out coding through the shared video data of filtering and eliminating noise in the video reception side in each described default resolution and/or the decoding rate scope; Exceeding the video reception side that presets resolution and/or decoding rate scope for the video playback window information, can be that this video reception side carries out the coding through the shared video data of filtering and eliminating noise according to screen resolution and/or the decoding rate of this video reception side then.
Step 300~400: after video data is shared in the selective reception of video reception side, play and to share video, and when real-time listening changes to the attribute information of its video playback window, video playback window attribute information after changing is sent to the video transmit leg, and return step 200 request video transmit leg and carry out recompile according to the video playback window attribute information after changing to sharing video data.
Wherein, step 300~400 comprise following substep as shown in Figure 4:
Step 301: the selective reception of video reception side comprises the packet of its IP address information.
Step 302~400: judge whether the video playback window attribute information in this packet is consistent with the attribute information of current video broadcast window: if inconsistent, then the attribute information with its IP address information and current video broadcast window sends to described video transmit leg, asks described video transmit leg again for sharing coding video data (returning step 200); Otherwise, reception and decoding are play and are shared video data in this packet, and the attribute information of its video playback window of real-time listening: if the attribute information of its video playback window changes, then the attribute information with its IP address information and current video broadcast window sends to described video transmit leg, asks described video transmit leg to be shared coding video data (returning step 200) again according to the attribute information of current video broadcast window.
Video playback window attribute change in information situation has multiple, for example, owing to the variation of dwindling/amplify the video playback window resolution that the current video broadcast window causes, owing to adjusting video reception side's screen resolution downwards or minimizing the variation that the video playback window causes the video playback window resolution, reduce decoding rate to discharge more cpu resource to use other programs etc.
Like this, it is auxiliary (for example to need not any external world, user's manual operation etc.), just can realize when dwindling the video playback window of video reception side, automatically adjust the coding of sharing video data in real time, realized sharing when the video multi-screen is shared the adaptive coding of video data, thereby guaranteed that video reception side is smooth and easy, reducing the Video processing intensity (having reduced CPU and memory usage) of video reception side in the undistorted ground playing video data.
As shown in Figure 5, the present invention also provides a kind of video multi-screen shared system, and this system comprises video sending end 500 and at least one video receiver 600.Wherein:
Described video sending end 500 is used for according to the video playback window attribute information of video receiver 600 video data that will share being carried out corresponding different coding, and the video data group of each different coding is issued each video receiver 600 of corresponding video playback window attribute.Described video sending end 500 comprises:
Window attribute acquisition module 502 is used for receiving the video playback window attribute information that each video receiver 600 sends, and determines corresponding each different coded system of video playback window of each video receiver 600 accordingly.
Coding module 501 is connected with window attribute acquisition module 502, is used for according to each different coded system of determining video file being carried out different codings, and is sent by video sending end 500.
Described video receiver 600 is used for decoding and plays the video data of sharing of its video playback window of correspondence that the video sending end 500 that receives sends, and when monitoring its video playback window attribute change in information, the video playback window attribute information after changing is sent to described video sending end 500.Described video receiver 600 comprises decoding playing module 601 and the window attribute monitoring modular 602 with video playback window.
Described decoding playing module 601 is used for the video data of its video playback window of correspondence that decoded video receiving terminal 600 receives, and uses the video playback window that sets to play.
Described window attribute monitoring modular 602, be electrically connected with described decoding playing module 601, the attribute information that is used for monitoring decoding playing module 601 employed video playback windows, and when monitoring described video playback window attribute change in information, the video playback window attribute information after changing is sent to described video sending end 500.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a video multi-screen is shared method, it is characterized in that, may further comprise the steps:
A, video transmit leg obtain the attribute information of at least one recipient's video playback window;
B, video transmit leg are according to described each recipient's video playback window attribute information of obtaining, the video data that will share is carried out corresponding different coding, and the video data group of each different coding is issued each recipient of corresponding video playback window attribute.
2. method according to claim 1 is characterized in that, also comprises:
The attribute information of its video playback window is monitored by video reception side, and when attribute information changes the attribute information of described video playback window is sent to the video transmit leg, returns steps A.
3. method according to claim 1 is characterized in that,
The attribute information of described video playback window comprises resolution, the current video broadcast window size of video reception side's video playback window.
4. method according to claim 1 is characterized in that, described step B comprises following substep:
B1, described video transmit leg come to be classified in video reception side according to default resolution and/or decoding rate scope;
B2, described video transmit leg are encoded according to described default resolution and/or decoding rate to the video data that will share, and with its corresponding each the IP address, video reception side of the shared video data behind the variant coding respectively packing group send out.
5. method according to claim 4 is characterized in that, the described step with its corresponding each IP address, the video reception side packing of the shared video data behind the variant coding of substep B2 comprises:
Described default resolution and/or the certain limit value of the corresponding recipient's video playback of decoding rate scope window attribute;
Described coding comprises: the video playback window attribute information of judging video reception side falls into described default resolution and/or decoding rate scope, encodes according to this resolution and/or decoding rate scope preset coding method.
6. method according to claim 5 is characterized in that, described preset coding method comprises: select the lower limit of described default resolution and/or decoding rate scope to described shared coding video data.
7. method according to claim 5 is characterized in that, described preset coding method comprises: select the maximum video window attributes information of the interior occurrence number of described default resolution and/or decoding rate scope to described shared coding video data.
8. method according to claim 5 is characterized in that, described preset coding method comprises: select the mean value of each video window attributes information of appearance of described default resolution and/or decoding rate scope to described shared coding video data.
9. realize the video multi-screen shared system of method according to claim 1 for one kind, this system comprises video sending end and at least one video receiver, it is characterized in that,
Described video sending end comprises:
The window attribute acquisition module is used for receiving the video playback window attribute information that each video receiver sends, and determines corresponding each different coded system of video playback window of each video receiver accordingly;
Coding module is connected with described window attribute acquisition module, is used for according to each different coded system of determining video file being carried out different codings, and is sent by described video sending end;
Described video receiver comprises:
The decoding playing module is used for the video data of its video playback window of correspondence that the decoded video receiving terminal receives, and uses the video playback window that sets to play;
The window attribute monitoring modular is connected with described decoding playing module, is used for the attribute information of the employed video playback window of the described decoding playing module of monitoring, and sends to described video sending end.
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PCT/CN2012/073730 WO2013117038A1 (en) | 2012-02-08 | 2012-04-10 | Video multi-screen sharing method and system for realizing same |
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