CN101873441A - 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 one output channel from any one input channel shows.In general, a M * N matrix represents 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 by 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 is poly-, aperture and change doubly etc., can adjust the catching range and the definition of camera like this.As seen, 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 by the configuration analog matrix.In digital scheme, use analog matrix, need a matrix host computer, a DVR, a decoder at least; And, may 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 by 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 invention provides a kind of method and system that realize video matrix function, many decoder centralized management can be adopted the function of the method realization video matrix of numeral, 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, described 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; Described method comprises:
Described main decoder detects and receives serial data;
Resolve described serial data, determine control types;
Reach respectively from decoding channels information and each coding pass information of front end of decoder according to described serial data, main decoder, determine control command and controlling object;
Send described control command to described controlling object, realize the video matrix function of described control types correspondence.
Preferably, described control types comprises cradle head control; Described according to described serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, determine that control command and controlling object comprise:
From described 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 described decoding channels number, at described main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
Determine corresponding decoder according to the described decoding channels information that is complementary, from described corresponding decoder, know the coding pass parameter of decoding;
According to each coding pass information of described front end, determine described coding pass parameter corresponding codes passage, this coding pass is defined as controlling object.
Preferably, describedly determine corresponding decoder, from described corresponding decoder, obtain the coding pass parameter of decoding and comprise according to described decoding channels information:
When described corresponding decoder is described main decoder, the coding pass parameter that inquiry is being decoded from the internal memory of described main decoder;
When described corresponding decoder is described during from decoder,, obtain the coding pass parameter that this is being decoded from decoder by network interface.
Preferably, described control types comprises that wall switches on the video; Described according to described serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, determine that control command and controlling object comprise:
From described serial data, resolve to obtain decoding control code, decoding channels number and coding pass number;
According to described coding pass number, in each coding pass information of described front end, obtain the coding pass information that is complementary, generate control command according to described coding pass information and decoding control code;
According to described decoding channels number, at described main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels of described decoding channels information correspondence is defined as controlling object.
Preferably, describedly send described control command, realize that the video matrix function of described control types correspondence comprises to described controlling object:
When described controlling object is the local decode passage of described main decoder, utilize local function and described control command that described local decode passage is set, wall handoff functionality on the video of realization video matrix;
When described controlling object was described remote decoder passage from decoder, login should utilize network interface and described 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, described 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; Described system comprises:
The serial ports receiving element is used for detecting and receiving serial data;
The data parsing unit is used to resolve described serial data, determines control types;
Determining unit is used for reaching respectively from decoding channels information and each coding pass information of front end of decoder according to described serial data, main decoder, determines control command and controlling object;
Control unit is used for sending described control command to described controlling object, realizes the video matrix function of described control types correspondence.
Preferably, described control types comprises cradle head control; Described determining unit comprises:
The first order generation unit is used for resolving from described 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 described decoding channels number, at described main decoder and respectively obtain the decoding channels information that is complementary from the decoding channels information of decoder;
The coding pass parameter acquiring unit is used for determining corresponding decoder according to the described decoding channels information that is complementary, and knows the coding pass parameter of decoding from described corresponding decoder;
The first controlling object determining unit is used for according to each coding pass information of described front end, determines described coding pass parameter corresponding codes passage, and this coding pass is defined as controlling object.
Preferably, described coding pass parameter acquiring unit specifically is used for: when described corresponding decoder is described main decoder, and the coding pass parameter that inquiry is being decoded from the internal memory of described main decoder; When described corresponding decoder is described during from decoder,, obtain the coding pass parameter that this is being decoded from decoder by network interface.
Preferably, described control types comprises that wall switches on the video; Described determining unit comprises:
Information acquisition unit is used for resolving from described serial data and obtains decoding control code, decoding channels number and coding pass number;
The second order generation unit is used for obtaining the coding pass information that is complementary according to described coding pass number in each coding pass information of described front end, generates control command according to described coding pass information and decoding control code;
The second controlling object determining unit is used for according to described decoding channels number, at described main decoder and respectively obtain the decoding channels information that is complementary from the decoding channels information of decoder; The decoding channels of described decoding channels information correspondence is defined as controlling object.
Preferably, described control unit specifically is used for: when described controlling object is the local decode passage of described main decoder, utilize local function and described control command that described local decode passage is set, wall handoff functionality on the video of realization video matrix; When described controlling object was described remote decoder passage from decoder, login should utilize network interface and described 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, described 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, apparently, 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, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the coding pass information data structure schematic diagram that the embodiment of the invention provides;
Fig. 2 is the decoding channels information data structure schematic diagram 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 the other method that provides of the embodiment of the invention;
Fig. 5 is the schematic diagram of the system that provides of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, 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 of protection of the invention.
At first, for the ease of understanding, at first the application scenarios with 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 by 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, by the control The Cloud Terrace, adjusts the catching range and the definition of camera.
In Surveillance center, the video data that each video camera need be passed back is converted to image, and shows on video wall; Therefore comprise decoder and video wall in Surveillance center, wherein, decoder has many, to decode from the video data of each coding pass jointly, by decoding channels image is outputed on the video wall then and 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 can't all be presented at the image of each coding pass of its correspondence on the video wall at synchronization, this be 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.As seen, can show the image of how many bar coding passes on the video wall, depend on the number of decoder.
Also the video data that photographs just because of not all video camera can both be simultaneously displayed on the video wall, therefore, may need to carry out wall on the video switch.For example, when needs are checked 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 be switched to the video data of this coding pass is decoded, so just the image from this coding pass can 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, the control The Cloud Terrace changes that Jiao of camera is poly-, 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 a decoder in the video matrix as main decoder, corresponding, other decoders are as 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 determined main decoder, need safeguard this main decoder and respectively from the decoding channels information of decoder by 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 The Cloud Terrace of all front end input channel correspondences.
Need to prove that in embodiments of the present invention, each decoder in the video matrix can be arranged on same place, finishes 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 is not subjected to the restriction of place and position, as long as can add same video matrix by 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 as shown in Figure 1, 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 decoding channels add this video matrix, 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.As seen, 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: described main decoder detects and receives serial data;
Because main decoder has serial line interface and can receive serial data, therefore, can insert the serial ports keyboard on main decoder, imports serial data by 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 to carry some information, show and to control the The Cloud Terrace of any platform video camera if carry out cradle head control.
S302: resolve described serial data, determine 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 by first byte, like this, just can know concrete control types by 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 described serial data, main decoder, determine control command and controlling object;
Because the user is when the input serial data, may only know information such as coding pass number or decoding channels number, therefore, also need according to described serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, determine concrete control command and controlling object, as, specifically need carry out what kind of control or the like to any bar passage.
S304: send described control command to described controlling object, realize the video matrix function of described control types correspondence.
Owing to known specifically to carry out what kind of control, therefore, just can directly send described control command, and then realize the video matrix function of described control types correspondence to described controlling object to any bar passage.
By as seen above-mentioned, in the embodiment of the invention, only need just can control, thereby realize digital video matrix by the serial ports keyboard of main decoder to coding passes all in the video matrix and decoding channels; Simultaneously, only need finish decoding function, therefore not need to 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 described serial data, judge whether control types is cradle head control, if enter step S403; Otherwise, enter step S408;
S403: from described 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, the pelco-d protocol conversion need 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 ".
By 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 " by 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 may and not know current demonstration is image from which bar coding pass, therefore, when the input serial data, can't directly carry relevant informations such as needing the coding pass adjusted number.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 determine which decoding channels this picture comes from, so when the input serial data, can carry decoding channels information.
S404: according to described decoding channels number, at described 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 gets access in serial data number, can inquire about the tabulation of the decoding communication information, in tabulation with this decoding channels number corresponding decoding channels information.
S405: determine corresponding decoder according to described decoding channels information, from described 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 by analysis, just can from this corresponding decoder, obtain the coding pass parameter of decoding then.
Need to prove, as can be known described from preamble, 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 determine 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 know the coding pass parameter of decoding from corresponding decoder.
Wherein, in this step, the decoder of determining may be a main decoder, also may 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 described decoder of determining is main decoder; If, enter step a2, otherwise, step a3 entered;
Concrete, can judge according to the decoding channels attribute that writes down in the described 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 described main decoder;
A3:, obtain the coding pass parameter that this is being decoded from decoder by network interface;
During specific implementation step a3, can send the order obtain 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 described front end, determine described coding pass parameter corresponding codes passage, this coding pass is defined as controlling object;
S407: send described control command to described controlling object, realize the video matrix function of described control types correspondence; 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 by 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 described 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 the image of which bar coding pass need 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 described coding pass number, in each coding pass information of described front end, obtain the coding pass information that is complementary, generate control command according to described coding pass information and decoding control code;
Owing to from serial data, parsed coding pass number, therefore, just can be directly according to described 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 described decoding channels number, at described main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels of described decoding channels information correspondence is defined as controlling object;
Equally, owing to from serial data, parsed the decoding channel number, therefore, just can be directly according to described 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 the decoding channels of this decoding channels information correspondence can be defined as controlling object, the control command that promptly needs this decoding channels forwarding step of subtend S409 to generate orders it that coding pass of determining among step S409 is decoded.
S411: send described control command to described controlling object, realize the video matrix function of described control types correspondence.
Wherein, the decoding channels of determining among the step S410 may be the local decode passage of main decoder, also may 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 described controlling object is the local decode passage of main decoder; If, enter step b2, otherwise, step b3 entered;
B2: utilize local function and described control command that described local decode passage is set, wall handoff functionality on the video of realization video matrix;
B3: login should utilize network interface and described 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 by above introduction as seen, the embodiment of the invention disposes on a decoder and operates, and has simplified configuration, has strengthened extensibility; By 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 by 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, described 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, described system comprises:
Serial ports receiving element 501 is used for detecting and receiving serial data;
Determining unit 503 is used for reaching respectively from decoding channels information and each coding pass information of front end of decoder according to described serial data, main decoder, determines control command and controlling object;
Control unit 504 is used for sending described control command to described controlling object, realizes the video matrix function of described control types correspondence.
Wherein, described control types can comprise cradle head control; Accordingly, determining unit 503 comprises:
The first order generation unit is used for resolving from described 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 described decoding channels number, at described main decoder and respectively obtain the decoding channels information that is complementary from the decoding channels information of decoder;
The coding pass parameter acquiring unit is used for determining corresponding decoder according to the described decoding channels information that is complementary, and knows the coding pass parameter of decoding from described corresponding decoder;
The first controlling object determining unit is used for according to each coding pass information of described front end, determines described coding pass parameter corresponding codes passage, and this coding pass is defined as controlling object.
Wherein, described coding pass parameter acquiring unit specifically is used for: when described corresponding decoder is described main decoder, and the coding pass parameter that inquiry is being decoded from the internal memory of described main decoder; When described corresponding decoder is described during from decoder,, obtain the coding pass parameter that this is being decoded from decoder by network interface.
In addition, described control types can also comprise that wall switches on the video; Accordingly, determining unit 503 can comprise:
Information acquisition unit is used for resolving from described serial data and obtains decoding control code, decoding channels number and coding pass number;
The second order generation unit is used for obtaining the coding pass information that is complementary according to described coding pass number in each coding pass information of described front end, generates control command according to described coding pass information and decoding control code;
The second controlling object determining unit is used for according to described decoding channels number, at described main decoder and respectively obtain the decoding channels information that is complementary from the decoding channels information of decoder; The decoding channels of described decoding channels information correspondence is defined as controlling object.
Wherein, control unit 504 specifically is used for: when described controlling object is the local decode passage of described main decoder, utilize local function and described control command that described local decode passage is set, wall handoff functionality on the video of realization video matrix; When described controlling object was described remote decoder passage from decoder, login should utilize network interface and described 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, be described in detail, used specific case herein 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 in specific embodiments and applications all can change.In sum, this description should not be construed as limitation of the present invention.
Claims (10)
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, described 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; Described method comprises:
Described main decoder detects and receives serial data;
Resolve described serial data, determine control types;
Reach respectively from decoding channels information and each coding pass information of front end of decoder according to described serial data, main decoder, determine control command and controlling object;
Send described control command to described controlling object, realize the video matrix function of described control types correspondence.
2. method according to claim 1 is characterized in that described control types comprises cradle head control; Described according to described serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, determine that control command and controlling object comprise:
From described 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 described decoding channels number, at described main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary;
Determine corresponding decoder according to the described decoding channels information that is complementary, from described corresponding decoder, know the coding pass parameter of decoding;
According to each coding pass information of described front end, determine described coding pass parameter corresponding codes passage, this coding pass is defined as controlling object.
3. method according to claim 2 is characterized in that, describedly determines corresponding decoder according to described decoding channels information, obtains the coding pass parameter of decoding and comprise from described corresponding decoder:
When described corresponding decoder is described main decoder, the coding pass parameter that inquiry is being decoded from the internal memory of described main decoder;
When described corresponding decoder is described during from decoder,, obtain the coding pass parameter that this is being decoded from decoder by network interface.
4. method according to claim 1 is characterized in that, described control types comprises that wall switches on the video; Described according to described serial data, main decoder and respectively from decoding channels information and each coding pass information of front end of decoder, determine that control command and controlling object comprise:
From described serial data, resolve to obtain decoding control code, decoding channels number and coding pass number;
According to described coding pass number, in each coding pass information of described front end, obtain the coding pass information that is complementary, generate control command according to described coding pass information and decoding control code;
According to described decoding channels number, at described main decoder and respectively from the decoding channels information of decoder, obtain the decoding channels information that is complementary; The decoding channels of described decoding channels information correspondence is defined as controlling object.
5. method according to claim 4 is characterized in that, describedly sends described control command to described controlling object, realizes that the video matrix function of described control types correspondence comprises:
When described controlling object is the local decode passage of described main decoder, utilize local function and described control command that described local decode passage is set, wall handoff functionality on the video of realization video matrix;
When described controlling object was described remote decoder passage from decoder, login should utilize network interface and described control command that this remote decoder passage is set from decoder, realized wall handoff functionality on the video of video matrix.
6. 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, described 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; Described system comprises:
The serial ports receiving element is used for detecting and receiving serial data;
The data parsing unit is used to resolve described serial data, determines control types;
Determining unit is used for reaching respectively from decoding channels information and each coding pass information of front end of decoder according to described serial data, main decoder, determines control command and controlling object;
Control unit is used for sending described control command to described controlling object, realizes the video matrix function of described control types correspondence.
7. system according to claim 6 is characterized in that described control types comprises cradle head control; Described determining unit comprises:
The first order generation unit is used for resolving from described 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 described decoding channels number, at described main decoder and respectively obtain the decoding channels information that is complementary from the decoding channels information of decoder;
The coding pass parameter acquiring unit is used for determining corresponding decoder according to the described decoding channels information that is complementary, and knows the coding pass parameter of decoding from described corresponding decoder;
The first controlling object determining unit is used for according to each coding pass information of described front end, determines described coding pass parameter corresponding codes passage, and this coding pass is defined as controlling object.
8. system according to claim 7 is characterized in that, described coding pass parameter acquiring unit specifically is used for: when described corresponding decoder is described main decoder, and the coding pass parameter that inquiry is being decoded from the internal memory of described main decoder; When described corresponding decoder is described during from decoder,, obtain the coding pass parameter that this is being decoded from decoder by network interface.
9. system according to claim 6 is characterized in that, described control types comprises that wall switches on the video; Described determining unit comprises:
Information acquisition unit is used for resolving from described serial data and obtains decoding control code, decoding channels number and coding pass number;
The second order generation unit is used for obtaining the coding pass information that is complementary according to described coding pass number in each coding pass information of described front end, generates control command according to described coding pass information and decoding control code;
The second controlling object determining unit is used for according to described decoding channels number, at described main decoder and respectively obtain the decoding channels information that is complementary from the decoding channels information of decoder; The decoding channels of described decoding channels information correspondence is defined as controlling object.
10. system according to claim 9, it is characterized in that, described control unit specifically is used for: when described controlling object is the local decode passage of described main decoder, utilize local function and described control command that described local decode passage is set, wall handoff functionality on the video of realization video matrix; When described controlling object was described remote decoder passage from decoder, login should utilize network interface and described 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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