CN102457656B - Method, device and system for realizing multi-channel nonlinear acquisition and editing - Google Patents
Method, device and system for realizing multi-channel nonlinear acquisition and editing Download PDFInfo
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- CN102457656B CN102457656B CN 201110235058 CN201110235058A CN102457656B CN 102457656 B CN102457656 B CN 102457656B CN 201110235058 CN201110235058 CN 201110235058 CN 201110235058 A CN201110235058 A CN 201110235058A CN 102457656 B CN102457656 B CN 102457656B
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Abstract
The invention discloses a method for realizing multi-channel nonlinear acquisition and editing. The method comprises the following steps of: receiving signals from at least two cameras; compressing and encoding the signals from at least two cameras to form corresponding signal code streams; combining the same time code and all the signal code streams respectively to acquire corresponding materialfiles; displaying the corresponding material files according to the same time code; acquiring the displayed material files to edit information in a nonlinear editing mode, and generating a program project file; and extracting the corresponding material files according to the program project file, packaging and outputting a program file. Meanwhile, the invention also discloses a device and a system for realizing the multi-channel nonlinear acquisition and editing. By the method, the device and the system which are disclosed by the invention, the making efficiency of programs is improved greatly on the premise that video programs are edited in detail; therefore, the making quality of the programs is improved and the making cost is reduced.
Description
Technical field
The present invention relates to field of broadcast televisions, relate in particular to a kind of non-linear method of gathering and editing of multichannel, Apparatus and system realized.
Background technology
The TV programme that the TV station that spectators enjoy plays generally needs through video recording, makes and broadcast, and could finally present to audience.
Wherein, video recording is that original image and sound are gathered.To the video recording of giving a performance, usually in the studio, carry out, perhaps mobile control room is opened to the floor show place and carried out.Studio (or mobile control room) technological system generally is equipped with 4 to 12 video cameras, 1 cut bank and 2 video tape recorders.The output signal of multiple cameras access cut bank is exported one tunnel programme signal (PGM) by cut bank and is advanced video tape recorder and carry out record.Present program recording mode is the picture signal of being taken by observing video camera by the director, cuts out one road PGM signal with cut bank and sends into video tape recorder and be recorded on the tape.The program of recording enters current widely used non-linear editing (calling non-volume in the following text) system and edits by uploading, the TV programme that final formation can be broadcasted.There are a lot of advantages in non-volume system, is extensively adopted more and more.But, dock with present video recording mode, also to through uploading this process, upload the time that needs 1:1.
Because most of program belongs to sports class or performance class program, can't recur, as: competition program, talent competition, theatrical performances or large-scale activity etc.Although present video recording mode has the multimachine position to take, but can only cut out one road signal and carry out record, complicated for scene, rhythm is fast, the performance that flashes across, the director may cut mistake or miss the camera lens of many excellences, causes the PGM signal of recording that many shortcoming is arranged, and these shortcoming often can't remedy in the later stage, non-establishment was done.Therefore present technological system can't support the making of fine quality TV program.
To sum up, in the prior art, though early stage video recording has multiple cameras to take, only get wherein by the selection of cut bank that one road signal carries out record, floor show flashes across, and Highlight is record one by one, stays all sorry can't remedying.Though the later stage nonlinear editing system is adopted more and more widely, still, one road video/audio signal can only be uploaded and edit to each non-volume simultaneously.Can't satisfy the requirement of become more meticulous editor and the quick Fabrication of video program.
Summary of the invention
The embodiment of the invention provides a kind of non-linear method of gathering and editing of multichannel, Apparatus and system realized, greatly improves the make efficiency of program, improves the making quality of program, reduces cost of manufacture.
The technical scheme of the embodiment of the invention is achieved in that
A kind of non-linear method of gathering and editing of multichannel that realizes, the method comprises:
Reception is from the signal of two-way video camera at least;
Pass through respectively compressed encoding with what receive from the signal of two-way video camera at least, form corresponding signal code stream;
Identical timing code made up respectively with each road signal code stream obtain corresponding material file;
According to described identical timing code, show corresponding material file;
Obtain shown material file and carry out the edit file of non-volume, generate the program project file;
Extract corresponding material file according to described program project file, output program file after the packing.
A kind of non-linear device of gathering and editing of multichannel of realizing, this device comprises:
Receiving element be used for to receive from the signal of two-way video camera at least;
Coding unit, what be used for receiving passes through respectively compressed encoding from the signal of two-way video camera at least, forms corresponding signal code stream;
The material unit obtains corresponding material file for identical timing code is made up respectively with each road signal code stream;
Display unit is used for according to described identical timing code, shows corresponding material file;
Program cells is used for obtaining the edit file that shown material file is carried out non-volume, generates the program project file;
Output unit is used for extracting corresponding material file according to described program project file, output program file after the packing.
A kind of non-linear system that gathers and edits of multichannel that realizes, this system comprises:
This system comprises main frame and at least one slave, wherein:
Described at least one slave, being used for the video recording order that issues according to described main frame will carry out respectively compressed encoding from the signal of two-way video camera at least, form corresponding signal code stream; Identical timing code made up respectively with each road signal code stream obtain corresponding material file;
Described main frame is used for issuing the video recording order to described at least one slave; According to described identical timing code, show corresponding material file; Obtain shown material file and carry out the edit file of non-volume, generate the program project file; After the material file packing that described program project file and described at least one slave is corresponding, the output program file.
Technical scheme according to the embodiment of the invention, embodiments of the present invention, at least two-way video camera (seat in the plane) carries out the video recording of multimachine position, the splendid moment of each angle can be recorded in each seat in the plane, the signal of all video cameras all in the mode of signal code stream in conjunction with identical timing code, obtain material file and carry out non-volume, when non-volume, can consider the signal from each angle video camera, satisfy video program become more meticulous editor prerequisite under, greatly improve the make efficiency of program, both improved the making quality of program, reduce again cost of manufacture.
Description of drawings
Technical scheme for the clearer explanation embodiment of the invention, the accompanying drawing of required use was done simple the introduction during the below will describe embodiment, apparent, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of flow chart of realizing the non-linear method of gathering and editing of multichannel that Fig. 1 provides for the embodiment of the invention;
The flow chart of the non-linear method of gathering and editing of realization multichannel that Fig. 2 provides for further embodiment of this invention;
A kind of structural representation of realizing the non-linear device of gathering and editing of multichannel that Fig. 3 provides for the embodiment of the invention;
A kind of structural representation of realizing the non-linear system that gathers and edits of multichannel that Fig. 4 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention; technical scheme in the embodiment of the invention is carried out clear, complete description; obvious described embodiment only is a part of embodiment of the present invention; not whole embodiment; based on the embodiment among the present invention; those of ordinary skills belong to the scope of protection of the invention not paying the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
A kind of flow chart of realizing the non-linear method of gathering and editing of multichannel that Fig. 1 provides for the embodiment of the invention.As shown in Figure 1, the method may further comprise the steps:
The embodiment of the invention can be carried out the video recording of multimachine position by two-way video camera (seat in the plane) at least, the splendid moment of each angle can be recorded in each seat in the plane, the signal of all video cameras all in the mode of signal code stream in conjunction with identical timing code, obtain material file and carry out non-volume, when non-volume, can consider the signal from each angle video camera, satisfy video program become more meticulous editor prerequisite under, greatly improve the make efficiency of program, both improve the making quality of program, reduced again cost of manufacture.
Embodiment two
The flow chart of the non-linear method of gathering and editing of realization multichannel that Fig. 2 provides for further embodiment of this invention.As shown in Figure 2, the method may further comprise the steps:
In the present embodiment, to the type of the signal of video camera concrete the restriction not, for example, can be audio signal, vision signal or video/audio signal; High-definition signal can be, also the SD signal can be.Receive the also not concrete restriction of interface type of the signal of video camera, can be the analog input interface, also can be digital input interface.
In the present embodiment, receive at least not concrete restriction of mode of the signal of two-way video camera, for example, the multichannel input interface is set, the signal of every road video camera receives by the passage input interface of correspondence.
In the present embodiment, the not concrete restriction of mode to compressed encoding, can adopt general signal compression coding mode, include but not limited to (the Moving Picture Experts Group of Motion Picture Experts Group, MPEG-2) compression and coding standard and/or digital audio/video encoding and decoding technique standard (Audio Video coding Standard, AVS) etc.
In the present embodiment, optional to the form of timing code concrete the restriction not, the form of timing code can for the time: minute: second.In order to improve the accuracy of timing code, further, the form of timing code can for the time: minute: second: frame.
In the present embodiment, in the process that material file is shown, can carry out non-volume to material file and process.Can adopt general mode to carry out non-volume; Optionally, in the present embodiment, also can carry out non-volume by the mode of clicking, concrete, can comprise: the information of obtaining the corresponding timing code of picture in the shown material file, and that obtains the corresponding in-edit of picture in the shown material file enters a little or goes out a little state information.
In the present embodiment, preferred, comprise editing mode information in the shown material file, wherein, editing mode information includes but not limited to, whether whether picture selected and/or material file is clicked for the picture of material file.Concrete, can adopt the frame of different colours to carry out the sign of state information.
In the present embodiment, the edit file that non-volume processing procedure is produced is recorded in the edit decision list (Edit Decision List, EDL), obtains the program project file.Wherein edit file can include but not limited to: editor's sequence number (namely according to editor's sequence number as can be known described material file by which time editor), in the numbering of described material file (being that described material file is the signal that the video camera of reference numeral is taken), described material file in the information, described material file of the corresponding timing code of picture the corresponding in-edit of picture enter a little or go out a little state information.Further, in non-volume processing procedure, can also carry out stunt processing and captions processing to material file, therefore, edit file can also include but not limited to: the corresponding special efficacy content of described material file and/or caption information etc.
The batch instruction and identical timing code of the embodiment of the invention by a key control is set can realize Synchronous Receiving, simultaneous display, synchronized playback and the synchro edit of multiple signals.The performance picture of each angle that each seat in the plane photographs in the loyal reduction video process, the program making that becomes more meticulous for the later stage provides necessary condition.
Embodiment three
The non-linear method of gathering and editing of the realization multichannel that the embodiment of the invention provides can be integrated on the single executive agent and realize, also can adopt a plurality of executive agents to realize.The embodiment of the invention three is embodied as example with a plurality of executive agents and describes, and wherein, a plurality of executive agents comprise main frame and at least one slave.
The embodiment of the invention three comprises step display, generates program project file step and output step, and in the present embodiment, above-mentioned steps is carried out by main frame, and its concrete grammar can be with reference to above-described embodiment.Particularly, in the present embodiment, receiving step can comprise:
Step 2011, issue video recording order at least one slave.
Step 2012, described at least one slave receive the signal of corresponding video camera according to described video recording order.
Further, can also comprise that the signal with the video camera of the described correspondence that receives passes through respectively compressed encoding, form corresponding signal code stream.
Further, the output step can also comprise:
Issue the packing order at least one slave;
Receive described at least one slave and extract corresponding material file according to described program project file;
Generate program file according to described material file packing of extracting correspondence.
In this method, owing to relating to a plurality of executive agents, comprise main frame and at least one slave, thereby for avoiding the realization of the non-linear method of gathering and editing of communication failure impact realization multichannel between main frame and at least one slave, before gathering and editing, main frame and described at least one slave carry out handshake communication.
In the present embodiment, owing to adopting a plurality of executive agents, increase along with executive agent quantity, so that corresponding number of cameras also can respective extension, increased the quantity of material, enrich the scope that material is contained, can obtain more exquisite and abundant video program, further improved the making quality of program.
Embodiment four
The receiving step that the embodiment of the invention four comprises, coding step, acquisition time code step, step display and generation program project file step can be with reference to above-described embodiment two and embodiment three.In the present embodiment, increased following steps:
The material file of step 208, correspondence that combination is obtained is stored on the external memorizer by network interface.
Traditional video recording in early stage mode is that camera signal is recorded on the tape, the present embodiment is converted to material file with camera signal and directly is stored on the external memorizer by network interface, equally, by network interface, between identical system, can exchange the data of external memorizer storage.Therefore, no longer need tape as intermediate carrier, realized the integrated of in earlier stage video recording and post-production.
In the present embodiment, owing to having adopted network interface, corresponding, the embodiment of the output step 207 among above-described embodiment two and the embodiment three can may further comprise the steps:
Step 2071, according to described program project file, by described network interface, read the material file of the correspondence on the described external memorizer.
Step 2072, with the material file packing of described program project file and the correspondence that reads, obtain program file.
Step 2073, export described program file by described network interface.
In the present embodiment, the concrete mode of output program file does not limit, and optional, can comprise: the described program file of decoding obtains video/audio signal; The video/audio signal that decoding obtains is exported by described network interface.
So far, step 207 is introduced complete.
In addition, need to prove, in the above-described embodiments, finished from the non-volume of the signal of two-way video camera at least, the program file of output itself just belongs to the file that becomes more meticulous after making, and can directly be play by broadcast system.Certainly, also can export program file, carry out further package processing at other technological system.
So far, partly introduce complete to method of the present invention.
Embodiment five
Based on the introduction of said method, a kind of structural representation of realizing the non-linear device of gathering and editing of multichannel that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, this device comprises:
Receiving element 301, what be used for receiving passes through respectively compressed encoding from the signal of two-way video camera at least, forms corresponding signal code stream.
In the present embodiment, described device can be integrated in the computer.
Further, described receiving element 301 comprises:
The order subelement is used for issuing the video recording order at least one slave.
Described at least one slave receives the signal of corresponding video camera according to described video recording order.
Receive subelement, be used for receiving the display frame of signal of the video camera of the correspondence that described at least one slave receive according to described video recording order.
Further, this device can also comprise:
Performance element is used for batch process.
Described display unit 304, concrete being used for shows corresponding material file according to described identical timing code synchronously.
Further, described material unit 303 specifically is used for synchronous identical timing code is made up respectively with each road signal code stream and obtains corresponding material file.
Further, described program cells 305, the concrete information that is used for obtaining the shown corresponding timing code of material file picture; And that obtains the corresponding in-edit of picture in the shown material file enters a little or goes out a little state information.
Further, described program cells can comprise:
The order subelement is used for issuing the packing order at least one slave;
Receive subelement, be used for receiving described at least one slave and extract corresponding material file according to described program project file;
Generate subelement, be used for generating program file according to described material file packing of extracting correspondence.
Further, this device can also comprise:
Network interface is used for being connected with external memorizer, and the material file stores synchronized of the correspondence that combination is obtained is on described external memorizer.
Further, described network interface also is used for exporting described program file.
But about the detailed introduction reference method part of device, it will not go into details herein.
To sum up, in embodiments of the present invention, carry out the video recording of multimachine position by two-way video camera (seat in the plane) at least, the splendid moment of each angle can be recorded in each seat in the plane, the signal of all video cameras all in the mode of signal code stream in conjunction with identical timing code, obtain material file and carry out non-volume, when non-volume, can consider the signal from each angle video camera, satisfy video program become more meticulous editor prerequisite under, greatly improve the make efficiency of program, both improved the making quality of program, reduce again cost of manufacture.
Embodiment six
A kind of structural representation of realizing the non-linear system that gathers and edits of multichannel that Fig. 4 provides for the embodiment of the invention, as shown in Figure 4, this system comprises: main frame 410 and at least one slave 411, wherein:
Described at least one slave 411, being used for the video recording order that issues according to described main frame will carry out respectively compressed encoding from the signal of two-way video camera 41～4n at least (n for more than or equal to 2 positive integer), form corresponding signal code stream; Identical timing code made up respectively with each road signal code stream obtain corresponding material file.
Described main frame 410 is used for issuing the video recording order to described at least one slave; According to described identical timing code, show corresponding material file; Obtain shown material file and carry out the edit file of non-volume, generate the program project file; With described program project file and the rear output of material file packing program file corresponding to described at least one slave.
To sum up, in embodiments of the present invention, carry out the video recording of multimachine position by two-way video camera (seat in the plane) at least, the splendid moment of each angle can be recorded in each seat in the plane, the signal of all video cameras all in the mode of signal code stream in conjunction with identical timing code, obtain material file and carry out non-volume, when non-volume, can consider the signal from each angle video camera, satisfy video program become more meticulous editor prerequisite under, greatly improve the make efficiency of program, both improved the making quality of program, reduce again cost of manufacture.
Further, in the present embodiment, owing to adopting a plurality of executive agents, increase along with executive agent quantity, so that corresponding number of cameras also can respective extension, increased the quantity of material, enriched the scope that material is contained, can obtain more exquisite and abundant video program, further improve the making quality of program.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by software, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above, only be a best specific embodiment of the present invention, but feature of the present invention is not limited to this, anyly is familiar with the people of this technology in field of the present invention, the variation that can expect easily or modification all should be encompassed in the following claim of the present invention.
Claims (19)
1. realize the non-linear method of gathering and editing of multichannel for one kind, it is characterized in that, the method comprises:
Reception is from the signal of two-way video camera at least;
Pass through respectively compressed encoding with what receive from the signal of two-way video camera at least, form corresponding signal code stream;
Synchronously identical timing code is made up respectively with each road signal code stream and obtain corresponding material file;
According to described identical timing code, show corresponding material file;
Obtain shown material file and carry out the edit file of non-volume, generate the program project file, wherein, described edit file comprises the numbering of described material file, and this numbering is used for representing that described material file is the signal of the video camera shooting of reference numeral;
Extract corresponding material file according to described program project file, output program file after the packing.
2. method according to claim 1 is characterized in that, described reception comprises from the signal of two-way video camera at least:
Issue the video recording order at least one slave;
Described at least one slave receives the signal of corresponding video camera according to described video recording order;
Receive the signal display frame of the video camera of the correspondence that described at least one slave receive according to described video recording order.
3. method according to claim 2 is further characterized in that, described at least one slave is according to described video recording order, and the signal that receives corresponding video camera also comprises:
The signal of the video camera of the described correspondence that receives is passed through respectively compressed encoding, form corresponding signal code stream.
4. method according to claim 1 is characterized in that, and is described according to described identical timing code, shows that corresponding material file comprises:
Show corresponding material file according to described identical timing code synchronously.
5. method according to claim 1 is characterized in that, the method also comprises:
The material file of the correspondence that combination is obtained by the network interface stores synchronized on external memorizer.
6. method according to claim 1 is characterized in that, describedly obtains shown material file and carries out the edit file of non-volume and comprise:
Obtain the information of the corresponding timing code of picture in the shown material file;
That obtains the corresponding in-edit of picture in the shown material file enters a little or goes out a little state information.
7. method according to claim 1 is characterized in that, described edit file also comprises:
In editor sequence number, the numbering of described material file, the described material file in the information of the corresponding timing code of picture, the described material file the corresponding in-edit of picture enter a little or go out a little the corresponding special efficacy content of state information, material file and/or caption information.
8. method according to claim 1 is characterized in that, the described material file of extracting correspondence according to described program project file, and the output program file comprises after the packing:
Issue the packing order at least one slave;
Receive described at least one slave and extract corresponding material file according to described program project file;
Generate program file according to described material file packing of extracting correspondence.
9. according to claim 1 to 8 each described methods, it is characterized in that, the method also comprises: receive in batches instruction and batch process.
10. according to claim 1 to 8 each described methods, it is characterized in that, when the form of described timing code comprises, minute, second and frame.
11. realize the non-linear device of gathering and editing of multichannel for one kind, it is characterized in that, this device comprises:
Receiving element be used for to receive from the signal of two-way video camera at least;
Coding unit, what be used for receiving passes through respectively compressed encoding from the signal of two-way video camera at least, forms corresponding signal code stream;
The material unit is used for synchronously identical timing code being made up respectively with each road signal code stream obtaining corresponding material file;
Display unit is used for according to described identical timing code, shows corresponding material file;
Program cells, be used for obtaining the edit file that shown material file is carried out non-volume, generate the program project file, wherein, described edit file comprises: the numbering of described material file, this numbering are used for representing that described material file is the signal of the video camera shooting of reference numeral;
Output unit is used for extracting corresponding material file according to described program project file, output program file after the packing.
12. device according to claim 11 is characterized in that, described receiving element comprises:
The order subelement is used for issuing the video recording order at least one slave;
Described at least one slave receives the signal of corresponding video camera according to described video recording order;
Receive subelement, be used for receiving the display frame of signal of the video camera of the correspondence that described at least one slave receive according to described video recording order.
13. device according to claim 11 is characterized in that,
Described display unit, concrete being used for shows corresponding material file according to described identical timing code synchronously.
14. device according to claim 11 is characterized in that, this device also comprises:
Network interface is used for the material file stores synchronized of correspondence that combination is obtained at external memorizer.
15. device according to claim 11 is characterized in that,
Described program cells, the concrete information that is used for obtaining the shown corresponding timing code of material file picture; And that obtains the corresponding in-edit of picture in the shown material file enters a little or goes out a little state information.
16. device according to claim 11 is characterized in that, described output unit comprises:
The order subelement is used for issuing the packing order at least one slave;
Receive subelement, be used for receiving described at least one slave and extract corresponding material file according to described program project file;
Generate subelement, be used for generating program file according to described material file packing of extracting correspondence.
17. to 16 each described devices, it is characterized in that according to claim 12, this device also comprises:
Command unit is used for receiving in batches instruction;
Performance element is used for batch process.
18. to 16 each described devices, it is characterized in that according to claim 12, described device is integrated in the computer.
19. realize the non-linear system that gathers and edits of multichannel for one kind, it is characterized in that, this system comprises main frame and at least one slave, wherein:
Described at least one slave, being used for the video recording order that issues according to described main frame will carry out respectively compressed encoding from the signal of two-way video camera at least, form corresponding signal code stream; Synchronously identical timing code is made up respectively with each road signal code stream and obtain corresponding material file;
Described main frame is used for issuing the video recording order to described at least one slave; According to described identical timing code, show corresponding material file; Obtain shown material file and carry out the edit file of non-volume, generate the program project file; With described program project file and the rear output of material file packing program file corresponding to described at least one slave;
Wherein, described edit file comprises the numbering of described material file, and this numbering is used for representing that described material file is the signal of the video camera shooting of reference numeral.
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| CN105704399A (en) * | 2016-03-21 | 2016-06-22 | 北京正奇联讯科技有限公司 | Playing method and system for multi-picture television program |
| CN108540734B (en) * | 2018-05-16 | 2021-02-02 | 中央电视台 | Switching method, device and system of 4K video and audio signals and electronic equipment |
| CN108540733A (en) * | 2018-05-16 | 2018-09-14 | 中央电视台 | 4K program making method and system |
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| CN1185256A (en) * | 1995-02-23 | 1998-06-17 | 阿卫德技术公司 | Combined editing system and digital moving picture recording system |
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