CN101873441B - Method and system for realizing video matrix function - Google Patents
Method and system for realizing video matrix function Download PDFInfo
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Abstract
The invention discloses a method and a system for realizing a video matrix function. One decoder in a video matrix is a master decoder, while the other decoders are slave decoder, wherein the master decoder is used for maintaining decoding channel information of the master decoder and each slave decoder and each piece of encoding channel information at the front end. The method comprises the following steps of: detecting and receiving serial port data by using the master decoder; analyzing the serial port data and determining a control type; according to the serial port data, the decoding channel information of the master decoder and each slave decoder and each piece of encoding channel information at the front end, determining a control command and a control object; and transmitting the control command to the control object to realize the video matrix function corresponding to the control type. Through the method and the system, the centralized management and configuration of the decoders can be realized, so that the video matrix function can be realized by adopting a digital method and the engineering complexity can be reduced.
Description
Technical field
The present invention relates to video signal processing field, particularly relate to a kind of method and system that realize video matrix function.
Background technology
The most important function of video matrix is exactly the switching output that realizes inputted video image.In other words, exactly video image being switched to any output channel from any input channel shows.In general, a M * N matrix representes that it can support M road image to import simultaneously and N road image is exported, and, common M＞N.Wherein, input channel be meant video camera with the image data transmission that photographs to the employed passage of Surveillance center, output channel is meant view data is outputed to the passage that uses when video wall shows.
In addition, video matrix also has an important function to carry out cradle head control exactly.The Cloud Terrace is a kind of hardware device, is used to adjust the position of camera.Usually, camera is installed on the The Cloud Terrace, realizes the change of camera level, vertical direction through the rotation of The Cloud Terrace, thereby realizes the adjustment to monitoring position.Cradle head control be except rotating camera, Jiao that can also control camera gathers, aperture and change doubly etc., can adjust the catching range and the definition of camera like this.It is thus clear that video matrix generally includes two kinds of control types: wall and cradle head control in the switching of video.
In the prior art, normally realize through the configuration analog matrix.In digital scheme, use analog matrix, need a matrix host computer, a DVR, a decoder at least; And, possibly also need external other equipment for the control of analog matrix, and such as display device, matrix controller, matrix supervisory keyboard etc., the function that some is complicated even need special PC to be configured.In addition, the scheme of analog matrix also needs the distribution of vision signal, the recording function that multiplexing equipment is realized DVR; If comprise a large amount of digital coding passages in the vision signal, analog matrix must be reduced into analog signal with these digital coding passages through digital decoder earlier, then access matrix.Therefore, in current network digital video surveillance applications, exist and realize complicated, as to operate underaction, poor expandability shortcoming.
Summary of the invention
The present invention provides a kind of method and system that realize video matrix function, can the function of the method realization video matrix of numeral be adopted in many decoder centralized management, has reduced the engineering complexity.
The invention provides following scheme:
A kind of method that realizes video matrix function, a decoder in the video matrix is a main decoder, other decoders are from decoder; Wherein, said main decoder is used to safeguard this main decoder and respectively from the decoding channels information of decoder, and each coding pass information of front end; Said method comprises:
Said main decoder detects and receives serial data;
Resolve said serial data, confirm control types;
Reach respectively from decoding channels information and each coding pass information of front end of decoder according to said serial data, main decoder, confirm control command and controlling object;
Send said control command to said controlling object, realize the video matrix function that said control types is corresponding.
Preferably, said control types comprises cradle head control; Said according to said serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, confirm that control command and controlling object comprise:
From said serial data, resolve to obtain decoding channels number, network The Cloud Terrace control code and network The Cloud Terrace numeric data code, and generate control command;
According to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
Confirm corresponding decoder according to the said decoding channels information that is complementary, from said corresponding decoder, know the coding pass parameter of decoding;
According to each coding pass information of said front end, confirm said coding pass parameter corresponding codes passage, this coding pass is confirmed as controlling object.
Preferably, saidly confirm corresponding decoder, from said corresponding decoder, obtain the coding pass parameter of decoding and comprise according to said decoding channels information:
When said corresponding decoder is said main decoder, the coding pass parameter that inquiry is being decoded from the internal memory of said main decoder;
When said corresponding decoder is said during from decoder,, obtain the coding pass parameter that this is being decoded from decoder through network interface.
Preferably, said control types comprises that wall switches on the video; Said according to said serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, confirm that control command and controlling object comprise:
From said serial data, resolve to obtain decoding control code, decoding channels number and coding pass number;
According to said coding pass number, in each coding pass information of said front end, obtain the coding pass information that is complementary, generate control command according to said coding pass information and decoding control code;
According to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels that said decoding channels information is corresponding is confirmed as controlling object.
Preferably, saidly send said control command, realize that the corresponding video matrix function of said control types comprises to said controlling object:
When said controlling object is the local decode passage of said main decoder, utilize local function and said control command that said local decode passage is set, wall handoff functionality on the video of realization video matrix;
When said controlling object was said remote decoder passage from decoder, login should utilize network interface and said control command that this remote decoder passage is set from decoder, realized wall handoff functionality on the video of video matrix.
A kind of system that realizes video matrix function, a decoder in the video matrix is a main decoder, other decoders are from decoder; Wherein, said main decoder is used to safeguard this main decoder and respectively from the decoding channels information of decoder, and each coding pass information of front end; Said system comprises:
The serial ports receiving element is used for detecting and receiving serial data;
The data parsing unit is used to resolve said serial data, confirms control types;
Confirm the unit, be used for reaching respectively from decoding channels information and each coding pass information of front end of decoder, confirm control command and controlling object according to said serial data, main decoder;
Control unit is used for sending said control command to said controlling object, realizes the video matrix function that said control types is corresponding.
Preferably, said control types comprises cradle head control; Said definite unit comprises:
The first order generation unit is used for resolving from said serial data and obtains decoding channels number, network The Cloud Terrace control code and network The Cloud Terrace numeric data code, and generates control command;
The decoding channels information acquisition unit is used for according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
The coding pass parameter acquiring unit is used for confirming corresponding decoder according to the said decoding channels information that is complementary, and from said corresponding decoder, knows the coding pass parameter of decoding;
First controlling object is confirmed the unit, is used for according to each coding pass information of said front end, confirms said coding pass parameter corresponding codes passage, and this coding pass is confirmed as controlling object.
Preferably, said coding pass parameter acquiring unit specifically is used for: when said corresponding decoder is said main decoder, and the coding pass parameter that inquiry is being decoded from the internal memory of said main decoder; When said corresponding decoder is said during from decoder,, obtain the coding pass parameter that this is being decoded from decoder through network interface.
Preferably, said control types comprises that wall switches on the video; Said definite unit comprises:
Information acquisition unit is used for resolving from said serial data and obtains decoding control code, decoding channels number and coding pass number;
The second order generation unit is used in each coding pass information of said front end, obtaining the coding pass information that is complementary according to said coding pass number, generates control command according to said coding pass information and decoding control code;
Second controlling object is confirmed the unit, is used for according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels that said decoding channels information is corresponding is confirmed as controlling object.
Preferably, said control unit specifically is used for: when said controlling object is the local decode passage of said main decoder, utilize local function and said control command that said local decode passage is set, wall handoff functionality on the video of realization video matrix; When said controlling object was said remote decoder passage from decoder, login should utilize network interface and said control command that this remote decoder passage is set from decoder, realized wall handoff functionality on the video of video matrix.
According to specific embodiment provided by the invention, the invention discloses following technique effect:
In the present invention, a decoder in the video matrix is a main decoder, and other decoders are from decoder; Wherein, said main decoder is used to safeguard this main decoder and respectively from the decoding channels information of decoder, and each coding pass information of front end; Like this, can realize the centralized management and the configuration of decoder, thereby adopt the function of the method realization video matrix of numeral, reduce the engineering complexity.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the coding pass information data structure sketch map that the embodiment of the invention provides;
Fig. 2 is the decoding channels information data structure sketch map that the embodiment of the invention provides;
Fig. 3 is the flow chart of the method that provides of the embodiment of the invention;
Fig. 4 is the flow chart of another method of providing of the embodiment of the invention;
Fig. 5 is the sketch map of the system that provides of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtained belongs to the scope that the present invention protects.
At first, for the ease of understanding, at first the application scenarios of the embodiment of the invention is introduced.Usually, in video monitoring system, may comprise that many are distributed in the video camera of diverse location and the video wall of Surveillance center.Each video camera is responsible for respectively position is separately taken, and the video data that will take acquisition is transferred to Surveillance center through coding pass, and wherein, every video camera can use a coding pass usually.In order comprehensively to obtain all information of video camera position, video camera can comprise The Cloud Terrace and camera two parts usually, through the control The Cloud Terrace, adjusts the catching range and the definition of camera.
In Surveillance center, need convert the video data that each video camera is passed back into image, and on video wall, show; Therefore comprise decoder and video wall in Surveillance center; Wherein, Decoder has many, will decode from the video data of each coding pass jointly, through decoding channels image is outputed on the video wall then to show; Like this, just can on video wall, demonstrate the image that video camera photographs.Wherein, a decoder may be responsible for the video data from many coding passes is decoded, and therefore, the number of coding pass usually can be more than the number of decoding channels.Owing to many coding passes and many decoding channels are arranged, therefore, have formed a kind of matrix relationship, just so-called video matrix.
Need to prove; Though corresponding many coding passes of decoder possibility; But the image of each coding pass in that synchronization can't be corresponding with it all is presented on the video wall, and this is because decoder only can be decoded to the video data that a coding pass transmission comes at synchronization; Therefore, the image that is presented on the video wall is the image of the current coding pass of decoding of each decoder.It is thus clear that, can show the image of how many bar coding passes on the video wall, depend on the number of decoder.
The video data that also photographs just because of not all video camera can both be simultaneously displayed on the video wall, therefore, may carry out wall on the video switch.For example; When needs are checked the image from certain bar coding pass, be not presented on the video wall if the image of this coding pass is current, then can initiate video switch; Concrete; To send order to the decoder of being responsible for this coding pass is decoded exactly, it switched to the video data of this coding pass is decoded, so just can the image from this coding pass be presented on the video wall.The process of wall on Here it is the video switch.
In addition; When finding that certain picture on the video wall is not very clear; Perhaps, current shooting to image can't contain needed content the time, then can be to the The Cloud Terrace transmitting control commands of corresponding video camera; Jiao that the control The Cloud Terrace changes camera gathers, aperture, change doubly, shooting angle or the like, picture displayed meets the demands on video wall.The process of cradle head control that Here it is.The purpose that realizes video matrix function just comprises wall and cradle head control etc. on the above-mentioned video switch.
In order to solve the variety of issue that prior art exists when realizing video matrix, the embodiment of the invention has adopted the method for decoder centralized management and configuration, in the method; At first need be with a decoder in the video matrix as main decoder, corresponding, other decoders conducts are from decoder in the video matrix; Certainly; This main decoder can be from each decoder optional one, as long as this decoder has serial ports, can receive serial data and get final product.
After having confirmed main decoder, need safeguard this main decoder and respectively from the decoding channels information of decoder through main decoder, and each coding pass information of front end.Wherein, the output channel in the corresponding video matrix of the decoding channels of decoder, the corresponding input channel of front end coding pass.Like this; Be equivalent at main decoder except knowing the decoding channels information of self; Can also know the decoding channels information of other decoders, and front end coding pass information, therefore; Just can pass through other each decoders of this main encoder centralized control, and the corresponding The Cloud Terrace of all front end input channels.
Need to prove that in embodiments of the present invention, each decoder in the video matrix can be arranged on same place, accomplishes a plurality of decoders of wall task on the video jointly; Also can be to have a plurality of decoders that only have network to communicate with different places.That is, in embodiments of the present invention, each decoder does not receive a restriction of position in one's power, as long as can add same video matrix through the mutual photos and sending messages of network interface, and the method for utilizing the embodiment of the invention to provide realizes video matrix function.
Wherein, coding pass information generally includes coding pass number and needed all information of preview code passage, for example, specifically can comprise: DVR IP, port numbers, user name, password, channel number, host-host protocol, code stream type.Decoding channels information generally includes decoding channels number, decoding channels attribute (local/long-range) and needed all information of decoding channels is set, and for example, specifically can comprise: decoder IP, port numbers, user name, password, channel number.Wherein, for decoding channels, if the passage of main decoder then is called the local channel, if then be called remote channel from the passage of decoder.
For the ease of safeguarding and management, can be coding pass information and decoding channels information definition data structure, for example, the data structure that coding pass information relates to is as shown in Figure 1, and the data structure that decoding channels information relates to is as shown in Figure 2.The channel information of each bar coding pass can be preserved according to the data structure among Fig. 1, and the channel information of all coding passes can be formed the coding pass information list; Equally, the channel information of each bar decoding channels can be preserved according to the data structure among Fig. 2, and the channel information of all decoding channels can be formed the decoding channels information list.Wherein, for the local channel, owing to operate at main decoder self exactly, do not relate to Telnet etc., therefore, the decoding channels information of preserving in the decoding channels tabulation is empty.
Like this, when new coding pass or this video matrix of decoding channels adding, just can in coding pass information list or decoding channels information list, increase data accordingly; Otherwise, when certain coding pass or decoding channels withdraw from this video matrix, equally can be in coding pass information list or decoding channels information list with the channel information deletion of correspondence.Thus it is clear that, adopt this mode to be convenient to the maintenance and management of whole video matrix system.
On the basis of above-mentioned setting, just can adopt digital mode to realize video matrix function.
Referring to Fig. 3, the method for the realization video matrix function that the embodiment of the invention provides may further comprise the steps:
S301: said main decoder detects and receives serial data;
Because main decoder has serial line interface and can receive serial data, therefore, can on main decoder, insert the serial ports keyboard, imports serial data through this serial ports keyboard to main decoder.Wherein, serial data is meant the control command that the user imports, and for example, when needs carry out on the video switch wall or cradle head control, just can import serial data to main decoder, initiates control flow with this serial data.Can carry control types information in the serial data, and need controlling object information of control or the like.For example,, then need carry some information, show and to control the The Cloud Terrace of any platform video camera if carry out cradle head control.
S302: resolve said serial data, confirm control types;
This serial data can be imported according to preset format, for example, with preset format in; Can stipulate to carry control types information through first byte; Like this, just can know concrete control types through resolving this first byte, promptly; Specifically be to carry out wall on the video switch, still carry out cradle head control.For example, can define " FF " representative and carry out cradle head control; Then after receiving serial data and resolving, can judge first byte of serial data, if " FF ", then can judge the user is to carry out cradle head control; Otherwise then can judge the user is to carry out wall on the video switch.
S303: reach respectively from decoding channels information and each coding pass information of front end of decoder according to said serial data, main decoder, confirm control command and controlling object;
Because the user is when the input serial data; Possibly only know information such as coding pass number or decoding channels number; Therefore, also need reach respectively from decoding channels information and each coding pass information of front end of decoder, confirm concrete control command and controlling object according to said serial data, main decoder; As, specifically need carry out what kind of control or the like to any bar passage.
S304: send said control command to said controlling object, realize the video matrix function that said control types is corresponding.
Owing to known specifically to carry out what kind of control, therefore, just can directly send said control command, and then realize the video matrix function that said control types is corresponding to said controlling object to any bar passage.
By above-mentioned visible, in the embodiment of the invention, only need just can control, thereby realize digital video matrix through the serial ports keyboard of main decoder to coding passes all in the video matrix and decoding channels; Simultaneously, only need accomplish decoding function, therefore need not have the serial ports keyboard from decoder.
The hypothesis control types comprises on the video switch two kinds on wall and cradle head control below, and the method that the embodiment of the invention provides is introduced in more detail.
Referring to Fig. 4, this method may further comprise the steps:
S401: detect and receive serial data;
S402: resolve said serial data, judge whether control types is cradle head control, if get into step S403; Otherwise, get into step S408;
S403: from said serial data, resolve to obtain decoding channels number, network The Cloud Terrace control code and network The Cloud Terrace numeric data code, and generate control command;
Wherein, when carrying out cradle head control, can use the pelco-d agreement to realize long-range cradle head control, wherein, in resolving pelco-d The Cloud Terrace protocol procedures, need the pelco-d protocol conversion be become Network Control Protocol.The corresponding table of comparisons is as shown in table 1.
Table 1
Wherein, the 2nd byte of Pelco-d resolves to " decoding channels number ", is used for searching decoding channels information at the decoding channels information list.
The the 3rd, 4 byte of Pelco-d resolves to " network The Cloud Terrace control code ".
The the 5th, 6 byte of Pelco-d resolves to " network The Cloud Terrace numeric data code ".
Through chief component in the just available network data of above parsing: network The Cloud Terrace control code, network The Cloud Terrace numeric data code, utilize this network The Cloud Terrace control code and network The Cloud Terrace numeric data code then, just can generate control command.Wherein, network The Cloud Terrace control code can indicate specifically need carry out to camera for which kind of adjustment, and network The Cloud Terrace numeric data code can indicate the degree of adjustment.For example, with angle deflection to the right 30 degree of camera, then network The Cloud Terrace control code indicates " adjustment angle " if desired, and indicates " 30 degree to the right " through network The Cloud Terrace numeric data code, or the like.
Need to prove; Owing to be that video camera is carried out cradle head control, therefore, need control concrete coding pass; But; Because what the monitor staff maybe and not know current demonstration is the image from which bar coding pass, therefore, when the input serial data, can't directly carry the relevant informations such as coding pass number that need adjustment.But because the monitor staff is after seeing certain width of cloth picture, discovery need be carried out cradle head control, and therefore, the monitor staff can confirm which decoding channels this picture comes from, so when the input serial data, can carry decoding channels information.
S404: according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
Because therefore the decoding channels that in serial data, gets access to number, can inquire about the tabulation of the decoding communication information, in tabulation with this decoding channels number corresponding decoding channels information.
S405: confirm corresponding decoder according to said decoding channels information, from said corresponding decoder, obtain the coding pass parameter of decoding;
Owing to information such as the IP that has write down decoder in the decoding channels information, port numbers, therefore, can determine corresponding decoder through analysis, just can from this corresponding decoder, obtain the coding pass parameter of decoding then.
Need to prove, know from preamble is said, for decoder; Though can decode to many coding passes; But only can decode at synchronization, and the current image that demonstrates is just from the image of this coding pass, therefore to a coding pass; As long as know the current coding pass information of decoding of this decoder, just can confirm has needed the coding pass of control.And decoder can write down current coding pass information of decoding just in internal memory, therefore, just can from corresponding decoder, know the coding pass parameter of decoding.
Wherein, in this step, the decoder of determining possibly be a main decoder, also possibly be from decoder, and for different decoders, the method for processing is slightly different, and concrete, this step can comprise following substep:
A1: judge whether the said decoder of determining is main decoder; If, get into step a2, otherwise, step a3 got into;
Concrete, can judge according to the decoding channels attribute that writes down in the said decoding channels information that is complementary, if local, then be main decoder, if long-range, then be from decoder.
A2: the coding pass parameter that inquiry is being decoded from the internal memory of said main decoder;
A3:, obtain the coding pass parameter that this is being decoded from decoder through network interface;
During concrete performing step a3, can send the order of obtaining this coding pass parameter of decoding from decoder from decoder to this according to this IP, port numbers etc. from decoder; Should from decoder after receiving order, just can from the internal memory of self, inquire about the coding pass parameter of decoding, and return to this main decoder then and get final product.
S406: according to each coding pass information of said front end, confirm said coding pass parameter corresponding codes passage, this coding pass is confirmed as controlling object;
S407: send said control command to said controlling object, realize the video matrix function that said control types is corresponding; That is, need be sent in the control command that generates among the step S403,, will adjust accordingly camera so that The Cloud Terrace receives after this control command through this coding pass to this coding pass.
Above step S403 is exactly the process of carrying out cradle head control to S407, introduces the process of carrying out wall on the video switch below.
S408: from said serial data, resolve to obtain decoding control code, decoding channels number and coding pass number;
Need to prove; Because wall on the video switch that the monitor staff initiates, therefore, this monitor staff knows and need the image of which bar coding pass be shown; And know also this coding pass is by which platform decoder decode; Therefore, in input during serial data, just can carry decoding channels number and coding pass number.Wherein, the decoding control code can be used in reference to illustrate and need carry out decode operation.
S409: according to said coding pass number, in each coding pass information of said front end, obtain the coding pass information that is complementary, generate control command according to said coding pass information and decoding control code;
Owing to from serial data, parsed coding pass number; Therefore, just can be directly according to said coding pass number inquiry coding pass information list, and therefrom obtain the coding pass information that number is complementary with this coding pass; As, the IP of coding pass, port numbers or the like.Just can generate control command according to this coding pass information and decoding control code, concrete, this control command can be: this coding pass is decoded.
S410: according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels that said decoding channels information is corresponding is confirmed as controlling object;
Equally, owing to from serial data, parsed the decoding channel number, therefore; Just can be directly according to said decoding channels number inquiry decoding channels information list; And therefrom obtain the decoding channels information that number is complementary with this decoding channels, as, the IP of decoding channels, port numbers or the like.Then, just can confirm as controlling object by the decoding channels that this decoding channels information is corresponding, the control command that promptly needs this decoding channels forwarding step of subtend S409 to generate orders it that coding pass of confirming among step S409 is decoded.
S411: send said control command to said controlling object, realize the video matrix function that said control types is corresponding.
Wherein, the decoding channels of confirming among the step S410 possibly be the local decode passage of main decoder, also possibly be the remote decoder passage from decoder; For different decoding channels; The method of handling is slightly different, and concrete, this step S411 can comprise following substep:
B1: judge and work as whether said controlling object is the local decode passage of main decoder; If, get into step b2, otherwise, step b3 got into;
B2: utilize local function and said control command that said local decode passage is set, wall handoff functionality on the video of realization video matrix;
B3: login should utilize network interface and said control command that this remote decoder passage is set from decoder, wall handoff functionality on the video of realization video matrix.
The above has carried out at length introducing to the method for the realization video matrix function that the embodiment of the invention provides, and visible through above introduction, the embodiment of the invention disposes on a decoder and operates, and has simplified configuration, has strengthened extensibility; Through decoder and serial ports keyboard, broken away from analog matrix fully, and the function of the matrix of realizing with the method for numeral, lowered cost and engineering complexity; Realized simple management and centralized management have been strengthened in many decoder centralized management through network.
The method of the realization video matrix function that provides with the embodiment of the invention is corresponding, and the embodiment of the invention also provides a kind of system that realizes video matrix function, and a decoder in this video matrix is a main decoder, and other decoders are from decoder; Wherein, said main decoder is used to safeguard this main decoder and respectively from the decoding channels information of decoder, and each coding pass information of front end; Referring to Fig. 5, said system comprises:
Serial ports receiving element 501 is used for detecting and receiving serial data;
Control unit 504 is used for sending said control command to said controlling object, realizes the video matrix function that said control types is corresponding.
Wherein, said control types can comprise cradle head control; Accordingly, confirm that unit 503 comprises:
The first order generation unit is used for resolving from said serial data and obtains decoding channels number, network The Cloud Terrace control code and network The Cloud Terrace numeric data code, and generates control command;
The decoding channels information acquisition unit is used for according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
The coding pass parameter acquiring unit is used for confirming corresponding decoder according to the said decoding channels information that is complementary, and from said corresponding decoder, knows the coding pass parameter of decoding;
First controlling object is confirmed the unit, is used for according to each coding pass information of said front end, confirms said coding pass parameter corresponding codes passage, and this coding pass is confirmed as controlling object.
Wherein, said coding pass parameter acquiring unit specifically is used for: when said corresponding decoder is said main decoder, and the coding pass parameter that inquiry is being decoded from the internal memory of said main decoder; When said corresponding decoder is said during from decoder,, obtain the coding pass parameter that this is being decoded from decoder through network interface.
In addition, said control types can also comprise that wall switches on the video; Accordingly, confirm that unit 503 can comprise:
Information acquisition unit is used for resolving from said serial data and obtains decoding control code, decoding channels number and coding pass number;
The second order generation unit is used in each coding pass information of said front end, obtaining the coding pass information that is complementary according to said coding pass number, generates control command according to said coding pass information and decoding control code;
Second controlling object is confirmed the unit, is used for according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels that said decoding channels information is corresponding is confirmed as controlling object.
Wherein, control unit 504 specifically is used for: when said controlling object is the local decode passage of said main decoder, utilize local function and said control command that said local decode passage is set, wall handoff functionality on the video of realization video matrix; When said controlling object was said remote decoder passage from decoder, login should utilize network interface and said control command that this remote decoder passage is set from decoder, realized wall handoff functionality on the video of video matrix.
More than to a kind of method and system that realize video matrix function provided by the present invention; Carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part all can change on embodiment and range of application.In sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. a method that realizes video matrix function is characterized in that, a decoder in the video matrix is a main decoder, and other decoders are from decoder; Wherein, said main decoder is used to safeguard this main decoder and respectively from the decoding channels information of decoder, and each coding pass information of front end; Said method comprises:
Said main decoder detects and receives serial data;
Resolve said serial data, confirm control types;
Reach respectively from decoding channels information and each coding pass information of front end of decoder according to said serial data, main decoder, confirm control command and controlling object;
Send said control command to said controlling object, realize the video matrix function that said control types is corresponding;
Wherein, said control types comprises cradle head control; Said according to said serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, confirm that control command and controlling object comprise:
From said serial data, resolve to obtain decoding channels number, network The Cloud Terrace control code and network The Cloud Terrace numeric data code, and generate control command;
According to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
Confirm corresponding decoder according to the said decoding channels information that is complementary, from said corresponding decoder, know the coding pass parameter of decoding;
According to each coding pass information of said front end, confirm said coding pass parameter corresponding codes passage, this coding pass is confirmed as controlling object;
Or,
Wherein, said control types comprises that wall switches on the video; Said according to said serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, confirm that control command and controlling object comprise:
From said serial data, resolve to obtain decoding control code, decoding channels number and coding pass number;
According to said coding pass number, in each coding pass information of said front end, obtain the coding pass information that is complementary, generate control command according to said coding pass information and decoding control code;
According to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels that said decoding channels information is corresponding is confirmed as controlling object.
2. method according to claim 1 is characterized in that, saidly confirms corresponding decoder according to said decoding channels information, from said corresponding decoder, obtains the coding pass parameter of decoding and comprises:
When said corresponding decoder is said main decoder, the coding pass parameter that inquiry is being decoded from the internal memory of said main decoder;
When said corresponding decoder is said during from decoder,, obtain the coding pass parameter that this is being decoded from decoder through network interface.
3. method according to claim 1 is characterized in that, saidly sends said control command to said controlling object, realizes that the corresponding video matrix function of said control types comprises:
When said controlling object is the local decode passage of said main decoder, utilize local function and said control command that said local decode passage is set, wall handoff functionality on the video of realization video matrix;
When said controlling object was said remote decoder passage from decoder, login should utilize network interface and said control command that this remote decoder passage is set from decoder, realized wall handoff functionality on the video of video matrix.
4. a system that realizes video matrix function is characterized in that, a decoder in the video matrix is a main decoder, and other decoders are from decoder; Wherein, said main decoder is used to safeguard this main decoder and respectively from the decoding channels information of decoder, and each coding pass information of front end; Said system comprises:
The serial ports receiving element is used for detecting and receiving serial data;
The data parsing unit is used to resolve said serial data, confirms control types;
Confirm the unit, be used for reaching respectively from decoding channels information and each coding pass information of front end of decoder, confirm control command and controlling object according to said serial data, main decoder;
Control unit is used for sending said control command to said controlling object, realizes the video matrix function that said control types is corresponding;
Wherein, said control types comprises cradle head control; Said definite unit comprises:
The first order generation unit is used for resolving from said serial data and obtains decoding channels number, network The Cloud Terrace control code and network The Cloud Terrace numeric data code, and generates control command;
The decoding channels information acquisition unit is used for according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
The coding pass parameter acquiring unit is used for confirming corresponding decoder according to the said decoding channels information that is complementary, and from said corresponding decoder, knows the coding pass parameter of decoding;
First controlling object is confirmed the unit, is used for according to each coding pass information of said front end, confirms said coding pass parameter corresponding codes passage, and this coding pass is confirmed as controlling object;
Or,
Wherein, said control types comprises that wall switches on the video; Said definite unit comprises:
Information acquisition unit is used for resolving from said serial data and obtains decoding control code, decoding channels number and coding pass number;
The second order generation unit is used in each coding pass information of said front end, obtaining the coding pass information that is complementary according to said coding pass number, generates control command according to said coding pass information and decoding control code;
Second controlling object is confirmed the unit, is used for according to said decoding channels number, at said main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels that said decoding channels information is corresponding is confirmed as controlling object.
5. system according to claim 4 is characterized in that, said coding pass parameter acquiring unit specifically is used for: when said corresponding decoder is said main decoder, and the coding pass parameter that inquiry is being decoded from the internal memory of said main decoder; When said corresponding decoder is said during from decoder,, obtain the coding pass parameter that this is being decoded from decoder through network interface.
6. system according to claim 4; It is characterized in that; Said control unit specifically is used for: when said controlling object is the local decode passage of said main decoder; Utilize local function and said control command that said local decode passage is set, wall handoff functionality on the video of realization video matrix; When said controlling object was said remote decoder passage from decoder, login should utilize network interface and said control command that this remote decoder passage is set from decoder, realized wall handoff functionality on the video of video matrix.
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| CN104010137B (en) * | 2014-06-16 | 2018-05-18 | 李思超 | The method and apparatus of the upper wall of network HD video splicing |
| CN104539901A (en) * | 2014-12-24 | 2015-04-22 | 上海伟视清数字技术有限公司 | Decoding display control system and method |
| CN104767943A (en) * | 2015-04-17 | 2015-07-08 | 武汉兴图新科电子股份有限公司 | One-key large-screen display system and method |
| CN110121084B (en) * | 2018-02-07 | 2021-10-08 | 腾讯科技（深圳）有限公司 | Method, device and system for switching ports |
| CN109581918A (en) * | 2018-11-29 | 2019-04-05 | 北京强度环境研究所 | A kind of multi channel signals switching equipment and signal switching method |
| CN110209136B (en) * | 2019-06-14 | 2020-10-27 | 北京机械设备研究所 | Unified scheduling method for hardware resources in control system |
| CN110266911B (en) * | 2019-06-27 | 2021-10-22 | 深圳市拔超科技有限公司 | Decoding method and device capable of realizing synchronous switching of video matrix and readable storage medium |
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