CN102811342A - Video profile cut control method, device and system - Google Patents
Video profile cut control method, device and system Download PDFInfo
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- CN102811342A CN102811342A CN2011101482563A CN201110148256A CN102811342A CN 102811342 A CN102811342 A CN 102811342A CN 2011101482563 A CN2011101482563 A CN 2011101482563A CN 201110148256 A CN201110148256 A CN 201110148256A CN 102811342 A CN102811342 A CN 102811342A
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Abstract
The invention provides a video profile cut control method, device and system. The method comprises the following steps of: sending a profile cut command to a media management server by a control server to ensure that the media management server is connected with a media channel of a monitor front-end unit to be switched and a media channel of a monitor terminal after the profile cut command is received by the media management server so that the monitor front-end unit to be switched is connected with the monitor terminal via the media channels, wherein the monitor front-end unit and the monitor terminal are respectively pre-connected with the media management server; and sending a key frame request to the monitor front-end unit to be switched by the control server to ensure that the monitor front-end unit to be switched sends a key frame to the monitor terminal via the media channel of the monitor terminal after the key frame request is received by the monitor front-end unit to be switched. Through the embodiment of the invention, system performance and user experience in a video profile cut process can be improved.
Description
Technical field
The present invention relates to the Network Video Surveillance technology, relate in particular to a kind of video round cut control method, equipment and system.
Background technology
(Network Video Surveillance System NVS) in the business, in order to reduce the requirement to the network bandwidth to greatest extent, generally is to adopt H.264 to sending behind the coding video data to Network Video Surveillance.H.264 in the coded data, be divided into I frame and non-I frame.The I frame is key frame again, is whole frame, through these frame data, can decode complete video image.Non-I frame generally has P frame, B frame, and these are called reference frame, can't only solve complete video image through this frame, need with reference to before or after frame could correct decoding.
In the Network Video Surveillance business; The quantity of monitoring camera lens is far longer than monitoring screen quantity; Supervisory user all needs to monitor camera lens and divides into groups in most cases, with the round mode successively with the camera lens of different grouping loop play in certain sequence in monitoring screen.
What used in the Network Video Surveillance field at present almost is digital video monitoring all; Be different from vision signal and be present in the simulation monitoring in the transmission channel all the time; Digital video need be set up network media passage; Through the network media channel request Media Stream of setting up, monitor terminal also need just can be play the Media Stream decoding after getting access to Media Stream.
Given this, in the handoff procedure of digital video monitoring, of short duration space possibly occur, not have media data in this space, can't not decode image, cause to be shown as blank screen, green screen or flower screen at monitor terminal thereby perhaps there are crucial frame data.
In order to solve the problem that possibly cause in the above-mentioned video switch process; Existing scheme can be set up media links to next road video in advance in handoff procedure; The request media data flow when switching generation, can directly use the media data flow of setting up completion to play.
But, though when this mode can guarantee the continuity of Business Stream, can not guarantee the correct decoding picture of publishing picture, still possibly show blank screen, green screen or flower screen, influence user experience.
Summary of the invention
The embodiment of the invention provides a kind of video round cut control method, equipment and system, improves user experience and improves systematic function.
The embodiment of the invention provides a kind of video round cut control method, comprising:
Control Server sends the round cut order to the media management server; So that after said media management server receives said round cut order; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance;
Control Server sends the key frame request to said to be switched front monitoring front-end unit, so that after said to be switched front monitoring front-end unit receives said key frame request, send key frame through the media channel with monitor terminal to said monitor terminal.
The embodiment of the invention provides a kind of video round cut control method, comprising:
The media management server receives the round cut order that Control Server sends;
The media management server will and link to each other with the media channel of monitor terminal with the media channel of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal; So that said to be switched front monitoring front-end unit receive after the key frame request that Control Server sends through with the media channel of said monitor terminal, key frame is sent to monitor terminal;
Said front monitoring front-end unit and monitor terminal connect with said media management server respectively in advance.
The embodiment of the invention provides a kind of video round cut control appliance, comprising:
Sending module; Be used for sending the round cut order to the media management server; So that after said media management server receives said round cut order; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance;
Request module is used for sending the key frame request to said to be switched front monitoring front-end unit, so that after said to be switched front monitoring front-end unit receives said key frame request, send key frame through the media channel with monitor terminal to said monitor terminal.
The embodiment of the invention provides a kind of video round cut control appliance, comprising:
Receiver module is used to receive the round cut order that Control Server sends;
Link block; Be used for and with the media channel of to be switched front monitoring front-end unit and link to each other with the media channel of monitor terminal; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal; So that said to be switched front monitoring front-end unit receive after the key frame request that Control Server sends through with the media channel of said monitor terminal, key frame is sent to monitor terminal; Said front monitoring front-end unit and monitor terminal connect with said media management server respectively in advance.
The embodiment of the invention provides a kind of video round cut control system, comprising:
Control Server is used to send the round cut order and sends the key frame request;
The media management server; After being used to receive the said switching command of said Control Server transmission; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance;
The front monitoring front-end unit after being used to receive the said key frame request of said Control Server transmission, sends key frame through the media channel with monitor terminal to said monitor terminal.
Can know by technique scheme; The embodiment of the invention connects with said media management server respectively through said front monitoring front-end unit and said monitor terminal in advance; Can guarantee when video switch that the data flow of front monitoring front-end unit do not interrupt; Aperture time when shortening the monitor terminal switching, elimination switch the blank screen that causes, green screen or flower screen, raising systematic function and raising user experience; Through the request key frame, key frame appears when guaranteeing video switch at once, owing to adopt the key frame picture of publishing picture of can correctly decoding, can guarantee that image correctly decodes, further improve systematic function and user experience.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done an introduction simply in will describing embodiment below; Obviously, the accompanying drawing in describing below 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 method flow sketch map of first embodiment of the invention;
Fig. 2 is for set up the schematic flow sheet of media channel in advance in the embodiment of the invention;
Fig. 3 is the method flow sketch map of second embodiment of the invention;
Fig. 4 is the corresponding system configuration sketch map of second embodiment of the invention;
Fig. 5 is the method flow sketch map of third embodiment of the invention;
Fig. 6 is the structural representation of the equipment of fourth embodiment of the invention;
Fig. 7 is the structural representation of the equipment of fifth embodiment of the invention;
Fig. 8 is the structural representation of the system of sixth embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the method flow sketch map of first embodiment of the invention, comprising:
Step 11: Control Server sends the round cut order to the media management server; So that after said media management server receives said round cut order; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance.
Step 12: Control Server sends the key frame request to said to be switched front monitoring front-end unit; So that after said to be switched front monitoring front-end unit receives said key frame request, send key frame to said monitor terminal through media channel with monitor terminal.
When video switch, in order to eliminate the blank screen that produces in the handoff procedure, green screen or flower screen problem, need guarantee that at first video data does not interrupt, need shorten even avoid for this reason the time of media break.Present embodiment connects with said media management server respectively through said front monitoring front-end unit and said monitor terminal in advance; Rather than when switching generation, connect again; Can switch smoothly through the connection of having set up; Shorten even avoid the time of media break, thereby avoid blank screen, green screen or flower screen problem, improve systematic function and user experience.In addition, in order to eliminate the blank screen that produces in the handoff procedure, green screen or flower screen problem, need secondly to guarantee that the data that get access to first after monitor terminal switches are key frame; I frame for example like this could the correct Solution code data, for this reason; Present embodiment is through asking key frame in handoff procedure; The front monitoring front-end unit sends key frame to monitor terminal when realizing switching, and guarantees that monitor terminal gets access to key frame first, realizes correctly decoding; Thereby avoid blank screen, green screen or flower screen problem, improve systematic function and user experience.
Fig. 2 comprises for setting up the schematic flow sheet of media channel in the embodiment of the invention in advance:
Step 21: monitor terminal sends to Control Server and starts round cut plan request.
Wherein, monitor terminal also can be called client unit (Client Unit, CU).In order to realize the static round broadcast of many group monitoring, at first monitor terminal need start the round cut plan, and for example, monitor terminal starts round cut plan request to the Control Server transmission and then starts the round cut plan.After starting the round cut plan, Control Server can divide into groups to carry out video switch and stop up to the round cut plan based on the round cut plan.
Round cut can comprise the information of every group of front monitoring front-end unit that comprises in the works, and switching interval, and the front monitoring front-end unit can comprise camera here.For example; Round cut has two groups of round cut groups in the works; First group of round cut group comprises camera A and camera B, and second group of round cut group comprises camera C and camera D, and switching interval is T; The round cut plan here is: the video of gathering when monitor terminal is at first play camera A and camera B monitoring, the video of gathering when playing camera C and camera D monitoring after the time through T; Afterwards, pass through the T time again, the video of gathering when then playing camera A and camera B monitoring once more, so circulation.
Above-mentioned startup round cut plan request can be that monitor terminal sends at setting-up time point, and for example, setting-up time is points in the mornings 9, and then monitor terminal sends at 9 in the morning and should start round cut plan request; Also can be that monitor terminal sends under the setting situation, for example, monitor terminal promptly sends after startup should start round cut plan request.
Step 22: the front monitoring front-end unit tabulation in the round cut group of Control Server inquiry round cut plan.
Wherein, Control Server can pre-configured round cut group, preserves corresponding front monitoring front-end unit list in each round cut group, preserves the information of corresponding front monitoring front-end unit in each front monitoring front-end unit list.For example; Above-mentioned round cut plan comprises 2 round cut groups; The first round cut group comprises the tabulation of the first front monitoring front-end unit; This first front monitoring front-end unit tabulation comprises that the information of camera A and the information of camera B, the second round cut group comprise the tabulation of the second front monitoring front-end unit, and this second front monitoring front-end unit tabulation comprises the information of camera C and the information of camera D.The information of camera can comprise: the sign of camera, title, numbering etc.
Step 23: Control Server sends starting command according to the tabulation of front monitoring front-end unit to the media management server.
Wherein, carry the information and the monitor terminal information of the front monitoring front-end unit in the tabulation of front monitoring front-end unit in this starting command, be used to indicate media management server and corresponding front monitoring front-end unit to set up medium and connect.
For example, there are two groups of round cut groups in current round cut in the works, and every group of round cut group comprises two front monitoring front-end unit respectively.Promptly the first corresponding front monitoring front-end unit of this first round cut group comprises the information of camera A and the information of camera B in tabulating; The second corresponding front monitoring front-end unit of this second round cut group comprises the information of camera C and the information of camera D in tabulating; Then Control Server sends 4 starting command to the media management server; The information of carrying camera A in the one-shot order, the information of carrying camera B in another time starting command; Carry the information of camera C in the one more starting command, and carry the information of camera D in the one more starting command.
Need to prove: above-mentioned Control Server also can only send a starting command to the media management server; Carry the information of all front monitoring front-end unit in the tabulation of front monitoring front-end unit in this starting command, promptly carried the information of camera A, the information of camera B, the information of camera C and the information of camera D.
Need to prove: above-mentioned Control Server can also send starting command twice according to round cut plan component; At the beginning; Comprised in the starting command of sending for the first time in the corresponding first front monitoring front-end unit tabulation of the first round cut group and comprised the information of camera A and the information of camera B; Comprised in the starting command of sending for the second time then, in the corresponding second front monitoring front-end unit tabulation of the second round cut group and comprised the information of camera C and the information of camera D.
Above-mentioned monitor terminal information can comprise the sign of monitor terminal, information such as the IP address at terminal
Above-mentioned starting command can be specially and start the entity browse request.
Step 24: the media management server sends the request response to Control Server.
Step 25: Control Server sends to monitor terminal and starts round cut plan response.
Step 26: after the media management server received starting command, according to the indication of starting command, foundation was connected with the medium of each front monitoring front-end unit one by one.Can be, the media management server sends the request of foundation to each front monitoring front-end unit one by one, and the front monitoring front-end unit receives that setting up the request back connects with the media management server.This front monitoring front-end unit also can be called peripheral unit (Peripheral Unit, PU)
For example, after the media management server receives the starting command of the information of carrying camera A, then to the camera A request of send setting up, to set up and being connected of camera A.After the media management server receives the starting command of the information of carrying camera B, then to the camera B request of send setting up, to set up and being connected of camera B.
After all setting up medium and be connected in calculated each the front monitoring front-end unit of media management server and round cut; Calculated each the front monitoring front-end unit of round cut all can be transferred to the media management server with the real time video data of being monitored, so that the media management server selects the real time video data of the front monitoring front-end unit of the plan that will take turns to be transferred to monitor terminal according to the round cut plan.
Step 27: the media management server is set up medium with monitor terminal and is connected according to the monitor terminal information in the starting command.
For example, the media management server is to the monitor terminal request of send setting up, and monitor terminal receives the request back of foundation and sets up medium with the media management server and be connected.
Need to prove: above-mentioned steps 26 does not have clear and definite ordinal relation restriction with step 27.Certainly, in order to improve reliability and efficient, can be earlier and the front monitoring front-end unit connect, after connecting, connect with monitor terminal again with the front monitoring front-end unit.
Connect through media management server and front monitoring front-end unit and monitor terminal in the present embodiment, can be when round cut take place, shorten even avoid Media Stream break period.In addition, because when in handoff procedure, connecting, the front monitoring front-end element number after switching is more; And need in short-term concurrent set up more connection than under the short scene switching time, can cause very big burden to system; Reduce systematic function, and present embodiment is through setting up above-mentioned connection when starting the round cut plan, rather than connects in the handoff procedure; Can avoid burden that system is caused, improve systematic function.In addition, above-mentioned connection remains when the round cut planning execution after setting up, and avoids improving handling property owing to the action that medium connect is removed in the establishment repeatedly that frequent switching causes.
After connecting, can adopt following embodiment to carry out the round cut flow process according to flow process shown in Figure 2.
Fig. 3 is the method flow sketch map of second embodiment of the invention, and Fig. 4 is the corresponding system configuration sketch map of second embodiment of the invention, and referring to Fig. 4, the media management server connects with each front monitoring front-end unit and monitor terminal.
Referring to Fig. 3, present embodiment comprises:
Step 31: according to the round cut plan, Control Server sends switching command to the media management server.
Wherein, round cut can be carried switching interval in the works, and behind the arrival switching interval, Control Server will send switching command to the media management server.For example, after the startup round cut plan, at first start the first round cut group, after the first round cut group started back arrival switching interval, then Control Server sent switching command to the media management server, to switch to the second round cut group from the first round cut group.
Step 32: the media management server links to each other with media channel and media management server between to be switched front monitoring front-end unit the media management server with the media channel of monitor terminal.
Because the media management server passes through media channel; The front monitoring front-end unit video data that real-time reception is all; In addition; The media management server also through media channel, keeps being connected with monitor terminal in real time, therefore works as according to the round cut plan; In the time of need the monitor video data of certain front monitoring front-end unit being sent to monitor terminal; The media management server if selective reception to the monitor video data of this front monitoring front-end unit, and the video data that will select sends to monitor terminal, promptly is equivalent to the media management server media management server is linked to each other with the media channel of monitor terminal with media channel and media management server between to be switched front monitoring front-end unit; Media management this moment server is equivalent to a more-control switch, can arrive monitor terminal according to the video Data Transmission that the round cut plan is controlled certain front monitoring front-end unit in real time.
Wherein, can carry the information of to be switched front monitoring front-end unit in the switching command, for example: can carry the sign of to be switched front monitoring front-end unit in the switching command, title, information such as numbering.Suppose that to be switched front monitoring front-end unit is front monitoring front-end unit-1; After then the media management server receives to be switched order; Confirm that to be switched front monitoring front-end unit is front monitoring front-end unit-1; Then will with the media channel of front monitoring front-end unit-1, and the media management server links to each other with these two passages of media channel of monitor terminal.After media channel connected, the media management server sent to monitor terminal with the data that receive after the data that receive from front monitoring front-end unit-1.
Step 33: Control Server sends the request of I frame to be switched front monitoring front-end unit.
Wherein, can preserve the round cut plan in the Control Server, this round cut can be preserved the information of the corresponding to be switched front monitoring front-end unit of each round cut in the works.For example, the information of the to be switched front monitoring front-end unit of first round cut group correspondence comprises: the information of the information of camera A and camera B; The information of the to be switched front monitoring front-end unit that the second round cut group is corresponding comprises: the information of the information of camera C and camera D.
In addition, round cut also can be preserved switching interval in the works, and according to this switching interval, Control Server can be confirmed current switch groups, and then to determine the front monitoring front-end unit that current switch groups comprises be above-mentioned to be switched front monitoring front-end unit.For example, Control Server can start the round cut plan after the startup round cut plan request that receives the monitor terminal transmission, and this round cut plan is the cycle since the first round cut group with the switching interval, successively each round cut group is switched.As, after the startup round cut plan, at first corresponding switch groups is first switch groups, corresponding to be switched front monitoring front-end unit is camera A and camera B; After the time that the first round cut group starts arrived switching interval, corresponding switch groups was second switch groups, and corresponding to be switched front monitoring front-end unit is camera C and camera D.
Moreover above-mentioned I frame request is used to indicate to be switched front monitoring front-end unit to send the I frame.
Step 34: to be switched front monitoring front-end unit is carried at the I frame and sends to the media management server in the media data.
Arrive the media management server because the front monitoring front-end unit is the video Data Transmission of in real time it being monitored, the front monitoring front-end unit transmits the I frame earlier when media management Server Transport video data in addition; Behind transmission I frame; Can pass a series of P frames or B frame, and then transmit next I frame, and behind the I frame; Can pass a series of P frames or B frame, by that analogy.Therefore when switching, the media management server possibly given with the content delivery of P frame or B frame in the front monitoring front-end unit, and the media management server is transferred to monitor terminal with P frame or B frame; Such monitor terminal just makes phenomenons such as picture blank screen, Hua Ping because there not being the I frame, therefore when receiving the request of I frame; To be switched front monitoring front-end unit sends the I frame no matter be at this moment; Still B frame or P frame are all edited an I frame at this moment, and this I frame are sent to the media management server.
Step 35: the media data that the media management server will carry the I frame sends to monitor terminal.
Wherein, monitor terminal can obtain video data according to the I frame decoding that receives after receiving the I frame.
Need to prove: step 32 does not have ordinal relation with step 33; Step 32 can be done earlier; Also can step 33 carry out earlier, as long as satisfy when switching, the I frame data that the front monitoring front-end unit after the media management server will switch sends are transferred to monitor terminal and get final product.
Present embodiment is connected with monitor terminal with the front monitoring front-end unit respectively through media management server before switching; Can guarantee that the camera code stream does not interrupt; Aperture time when shortening the monitor terminal switching is eliminated and is switched the blank screen that causes, green screen and flower screen, raising monitor staff perceptibility; In addition, through shortening switching time, eliminated the monitoring potential safety hazard that produces in the handoff procedure.
Fig. 5 is the method flow sketch map of third embodiment of the invention, comprising:
Step 51: the media management server receives the round cut order that Control Server sends;
Step 52: the media management server will and link to each other with the media channel of monitor terminal with the media channel of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal; So that said to be switched front monitoring front-end unit receive after the key frame request that Control Server sends through with the media channel of said monitor terminal, key frame is sent to monitor terminal; Said front monitoring front-end unit and monitor terminal connect with said media management server respectively in advance.
Wherein, can also comprise: when starting the round cut plan, the media management server respectively with monitor terminal and round cut group in each front monitoring front-end unit connect.Specifically can be following:
The media management server receives the startup command that Control Server sends; Said startup command is that said Control Server sends according to the front monitoring front-end unit list; Said front monitoring front-end unit list is said Control Server after receiving the startup round cut plan request that monitor terminal sends, and the round cut group of inquiry round cut plan is obtained;
The media management server is set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and is connected according to the front monitoring front-end unit information of carrying in the said starting command;
The media management server is according to the monitor terminal information of carrying in the said starting command, and foundation is connected with the medium of said monitor terminal.
Further, can be, the media management server when the round cut planning execution, respectively with monitor terminal and round cut group in each front monitoring front-end unit connect after, remain connection.
Present embodiment through set up in advance monitor terminal and front monitoring front-end unit respectively with being connected of media management server; Can guarantee when video switch that the data flow of front monitoring front-end unit do not interrupt; Aperture time when shortening the monitor terminal switching; Eliminate and switch the blank screen that causes, green screen or flower screen, improve systematic function and improve user experience.Through the request key frame, key frame appears when guaranteeing video switch at once, owing to adopt the key frame picture of publishing picture of can correctly decoding, can guarantee that image correctly decodes, further improve systematic function and user experience.During owing in handoff procedure, connect, the front monitoring front-end element number after switching is more, and switching time is than under the short scene; Need the concurrent in short-term more connection of setting up, can cause very big burden, reduce systematic function system; And present embodiment is through setting up above-mentioned connection when starting the round cut plan; Rather than connect in the handoff procedure, can avoid burden that system is caused, improve systematic function.Through remaining the connection of foundation in the handoff procedure, can avoid improving handling property owing to the action that medium connect is removed in the establishment repeatedly that frequent switching causes.
Fig. 6 is the structural representation of the equipment of fourth embodiment of the invention, comprises sending module 61 and request module 62; Sending module 61 is used for sending the round cut order to the media management server; So that after said media management server receives said round cut order; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance; Request module 62 is used for sending the key frame request to said to be switched front monitoring front-end unit, so that after said to be switched front monitoring front-end unit receives said key frame request, send key frame through the media channel with monitor terminal to said monitor terminal.
This equipment can also comprise: trigger module is used for when starting the round cut plan, triggering the media management server and connects with each front monitoring front-end unit of monitor terminal and round cut group respectively.
Trigger module can specifically be used for: after receiving the startup round cut plan request of monitor terminal transmission, and front monitoring front-end unit tabulation in the round cut group of inquiry round cut plan; Tabulate according to said front monitoring front-end unit; Send starting command to said media management server; After making that said media management server receives said starting command, set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and be connected, and; Make the media management server according to the monitor terminal information of carrying in the said starting command, foundation is connected with the medium of said monitor terminal.
This equipment can be specially Control Server.
Present embodiment connects with said media management server respectively through said front monitoring front-end unit and said monitor terminal in advance; Can guarantee when video switch that the data flow of front monitoring front-end unit do not interrupt; Aperture time when shortening the monitor terminal switching; Eliminate and switch the blank screen that causes, green screen or flower screen, improve systematic function and user experience; Through the request key frame, key frame appears at once when guaranteeing video switch, further improve systematic function and user experience.
Fig. 7 is the structural representation of the equipment of fifth embodiment of the invention, comprises receiver module 71 and link block 72; Receiver module 71 is used to receive the round cut order that Control Server sends; Link block 72 is used for the media channel of to be switched front monitoring front-end unit and link to each other with the media channel of monitor terminal; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal; So that said to be switched front monitoring front-end unit receive after the key frame request that Control Server sends through with the media channel of said monitor terminal, key frame is sent to monitor terminal; Said front monitoring front-end unit and monitor terminal connect with said media management server respectively in advance.
Can also comprise: set up module, be used for when starting the round cut plan, respectively with monitor terminal and round cut group in each front monitoring front-end unit connect.
This is set up module and can specifically be used for: receive the starting command that Control Server sends; Said starting command is said Control Server according to the front monitoring front-end unit tabulation is sent; Said front monitoring front-end unit tabulation for said Control Server after receiving the startup round cut plan request that monitor terminal sends, the round cut group of inquiry round cut plan is obtained; According to the front monitoring front-end unit information of carrying in the said starting command, set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and be connected; According to the monitor terminal information of carrying in the said starting command, foundation is connected with the medium of said monitor terminal.
This equipment can be specially the media management server.
Present embodiment through set up in advance monitor terminal and front monitoring front-end unit respectively with being connected of media management server; Can guarantee when video switch that the data flow of front monitoring front-end unit do not interrupt; Aperture time when shortening the monitor terminal switching; Eliminate and switch the blank screen that causes, green screen or flower screen, improve systematic function and improve user experience.Through the request key frame, key frame appears when guaranteeing video switch at once, owing to adopt the key frame picture of publishing picture of can correctly decoding, can guarantee that image correctly decodes, further improve systematic function and user experience.During owing in handoff procedure, connect, the front monitoring front-end element number after switching is more, and switching time is than under the short scene; Need the concurrent in short-term more connection of setting up, can cause very big burden, reduce systematic function system; And present embodiment is through setting up above-mentioned connection when starting the round cut plan; Rather than connect in the handoff procedure, can avoid burden that system is caused, improve systematic function.Through remaining the connection of foundation in the handoff procedure, can avoid improving handling property owing to the action that medium connect is removed in the establishment repeatedly that frequent switching causes.
Fig. 8 is the structural representation of the system of sixth embodiment of the invention, comprises Control Server 81, media management server 82 and front monitoring front-end unit 83; Control Server 81 is used to send the round cut order and sends the key frame request; After media management server 82 is used to receive the said switching command of said Control Server transmission; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance; Front monitoring front-end unit 83 sends key frame through the media channel with monitor terminal to said monitor terminal after being used to receive the said key frame request of said Control Server transmission.
Said media management server 82 can also be used for when starting the round cut plan, respectively with the round cut group in front monitoring front-end unit and monitor terminal connect.
After said Control Server 81 can also be used to receive the startup round cut plan request of monitor terminal transmission; Front monitoring front-end unit tabulation in the round cut group of inquiry round cut plan; And, send starting command to said media management server according to the tabulation of said front monitoring front-end unit; Said media management server 82 can also be used for the front monitoring front-end unit information of carrying according to said starting command, sets up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and is connected; Said media management server 82 can also be used for the monitor terminal information of carrying according to said starting command, sets up to be connected with the medium of said monitor terminal.
Said media management server 82 can also be used for when the round cut planning execution, remains and being connected of said front monitoring front-end unit and monitor terminal.
Present embodiment connects with said media management server respectively through said front monitoring front-end unit and said monitor terminal in advance; Can guarantee when video switch that the data flow of front monitoring front-end unit do not interrupt; Aperture time when shortening the monitor terminal switching; Eliminate and switch the blank screen that causes, green screen or flower screen, improve systematic function and user experience; Through the request key frame, key frame appears at once when guaranteeing video switch, further improve systematic function and user experience.
It is understandable that the reference each other of the correlated characteristic in said method and the equipment.In addition, " first " in the foregoing description, " second " etc. are to be used to distinguish each embodiment, and do not represent the quality of each embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (18)
1. a video round cut control method is characterized in that, comprising:
Control Server sends the round cut order to the media management server; So that after said media management server receives said round cut order; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance;
Control Server sends the key frame request to said to be switched front monitoring front-end unit, so that after said to be switched front monitoring front-end unit receives said key frame request, send key frame through the media channel with monitor terminal to said monitor terminal.
2. method according to claim 1 is characterized in that, also comprises:
Control Server when starting the round cut plan, trigger the media management server respectively with monitor terminal and round cut group in each front monitoring front-end unit connect.
3. method according to claim 2 is characterized in that, said Control Server when starting the round cut plan, trigger the media management server respectively with monitor terminal and round cut group in each front monitoring front-end unit connect, comprising:
Control Server receives the startup round cut plan request that monitor terminal sends;
Front monitoring front-end unit list in the round cut group of Control Server inquiry round cut plan;
Control Server is tabulated according to said front monitoring front-end unit; Send starting command to said media management server; After making that said media management server receives said starting command, set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and be connected, and; Make the media management server according to the monitor terminal information of carrying in the said starting command, foundation is connected with the medium of said monitor terminal.
4. method according to claim 1 is characterized in that, said key frame request is the request of I frame, and the request of said I frame makes said to be switched front monitoring front-end unit send the I frame.
5. method according to claim 1 is characterized in that, said front monitoring front-end unit and said monitor terminal remain connection after connecting with said media management server respectively when the round cut planning execution.
6. a video round cut control method is characterized in that, comprising:
The media management server receives the round cut order that Control Server sends;
The media management server will and link to each other with the media channel of monitor terminal with the media channel of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal; So that said to be switched front monitoring front-end unit receive after the key frame request that Control Server sends through with the media channel of said monitor terminal, key frame is sent to monitor terminal;
Said front monitoring front-end unit and monitor terminal connect with said media management server respectively in advance.
7. method according to claim 6 is characterized in that, also comprises:
When starting the round cut plan, the media management server respectively with monitor terminal and round cut group in each front monitoring front-end unit connect.
8. method according to claim 7 is characterized in that, and is said when starting the round cut plan, the media management server respectively with monitor terminal and round cut group in each front monitoring front-end unit connect, comprising:
The media management server receives the startup command that Control Server sends; Said startup command is that said Control Server sends according to the front monitoring front-end unit list; Said front monitoring front-end unit list is said Control Server after receiving the startup round cut plan request that monitor terminal sends, and the round cut group of inquiry round cut plan is obtained;
The media management server is set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and is connected according to the front monitoring front-end unit information of carrying in the said starting command;
The media management server is according to the monitor terminal information of carrying in the said starting command, and foundation is connected with the medium of said monitor terminal.
9. according to claim 7 or 8 described methods, it is characterized in that, also comprise:
The media management server when the round cut planning execution, respectively with monitor terminal and round cut group in each front monitoring front-end unit connect after, remain connection.
10. a video round cut equipment is characterized in that, comprising:
Sending module; Be used for sending the round cut order to the media management server; So that after said media management server receives said round cut order; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance;
Request module is used for sending the key frame request to said to be switched front monitoring front-end unit, so that after said to be switched front monitoring front-end unit receives said key frame request, send key frame through the media channel with monitor terminal to said monitor terminal.
11. equipment according to claim 10 is characterized in that, also comprises:
Trigger module is used for when starting the round cut plan, triggering the media management server and connects with each front monitoring front-end unit of monitor terminal and round cut group respectively.
12. equipment according to claim 11 is characterized in that, said trigger module specifically is used for:
After receiving the startup round cut plan request of monitor terminal transmission, front monitoring front-end unit tabulation in the round cut group of inquiry round cut plan; Tabulate according to said front monitoring front-end unit; Send starting command to said media management server; After making that said media management server receives said starting command, set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and be connected, and; Make the media management server according to the monitor terminal information of carrying in the said starting command, foundation is connected with the medium of said monitor terminal.
13. a video round cut equipment is characterized in that, comprising:
Receiver module is used to receive the round cut order that Control Server sends;
Link block; Be used for and with the media channel of to be switched front monitoring front-end unit and link to each other with the media channel of monitor terminal; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal; So that said to be switched front monitoring front-end unit receive after the key frame request that Control Server sends through with the media channel of said monitor terminal, key frame is sent to monitor terminal; Said front monitoring front-end unit and monitor terminal connect with said media management server respectively in advance.
14. equipment according to claim 13 is characterized in that, also comprises:
Set up module, be used for when starting the round cut plan, respectively with monitor terminal and round cut group in each front monitoring front-end unit connect.
15. equipment according to claim 14 is characterized in that, the said module of setting up specifically is used for:
Receive the startup command that Control Server sends; Said startup command is that said Control Server sends according to the front monitoring front-end unit list; Said front monitoring front-end unit list is said Control Server after receiving the startup round cut plan request that monitor terminal sends, and the round cut group of inquiry round cut plan is obtained;
According to the front monitoring front-end unit information of carrying in the said starting command, set up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and be connected;
According to the monitor terminal information of carrying in the said starting command, foundation is connected with the medium of said monitor terminal.
16. a video round cut control system is characterized in that, comprising:
Control Server is used to send the round cut order and sends the key frame request;
The media management server; After being used to receive the said switching command of said Control Server transmission; The media management server is linked to each other with the media channel of monitor terminal with the media channel and the media management server of to be switched front monitoring front-end unit; Make said to be switched front monitoring front-end unit link to each other through media channel with said monitor terminal, said front monitoring front-end unit and said monitor terminal connect with said media management server respectively in advance;
The front monitoring front-end unit after being used to receive the said key frame request of said Control Server transmission, sends key frame through the media channel with monitor terminal to said monitor terminal.
17. system according to claim 16 is characterized in that,
Said media management server also is used for when starting the round cut plan, respectively with the round cut group in front monitoring front-end unit and monitor terminal connect.
18. system according to claim 17 is characterized in that,
After said Control Server also is used to receive the startup round cut plan request of monitor terminal transmission, front monitoring front-end unit tabulation in the round cut group of inquiry round cut plan, and, send startup command to said media management server based on the tabulation of said front monitoring front-end unit;
Said media management server also is used for the front monitoring front-end unit information of carrying according to said starting command, sets up medium one by one with the front monitoring front-end unit in the tabulation of said front monitoring front-end unit and is connected;
Said media server also is used for the monitor terminal information of carrying according to said starting command, sets up to be connected with the medium of said monitor terminal.
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| CN201110148256.3A CN102811342B (en) | 2011-06-02 | 2011-06-02 | Video profile cut control, equipment and system |
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| CN201110148256.3A CN102811342B (en) | 2011-06-02 | 2011-06-02 | Video profile cut control, equipment and system |
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| CN102811342B (en) | 2016-06-15 |
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