CN101692693B

CN101692693B - Multifunctional integrated studio system and a method

Info

Publication number: CN101692693B
Application number: CN2009103079334A
Authority: CN
Inventors: 姚威; 骆健; 骆萧萧; 王东; 蒋重涛; 张海云; 陈琦; 史鹏程; 付海昆
Original assignee: Beijing Dayang Technology Development Inc
Current assignee: Beijing Dayang Technology Development Inc
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2011-09-28
Anticipated expiration: 2029-09-29
Also published as: CN101692693A

Abstract

The invention relates to a multifunctional integrated studio system and a method for producing radio and television programmers or films. The multifunctional integrated studio system comprises a computer which is connected with an external video signal source and an external audio signal source and ahs a mouse and a keyboard, wherein a multi-channel video input circuit, a multi-channel audio capture buffer, a multi-channel capture and recording encoder, a memory, a sound console device, a built-in video signal source and a virtual studio device are configured in the computer; and the computer also provided with a touch panel displayer, an external switcher, a control and operation analysis unit connected with the mouse and the keyboard, a central processing device, an output buffer, a multipicture separator and a screen signal converter. In the invention, the switcher, a sound console, a recorder, a player, a caption machine, editing, broadcasting, the virtual studio, a TALLY system, a television wall and other system equipment are subjected to software modularization, and the modules are seamlessly integrated.

Description

A kind of multifunctional all studio system and perform in a radio or TV programme method

Technical field

The present invention relates to a kind of multifunctional all studio system and perform in a radio or TV programme method, is the system and method that a kind of digitized image is handled, and is a kind of digitized image treatment system and method that is used for all kinds of studios.

Background technology

The studio is as the important place of television program designing, outer most of performance recording and the making task of breath-group order except having born.The studio relates to links such as the shooting of program making, synthetic, broadcast, and it is the preparatory stage of program making that studio program is taken, for whole program provides raw data; Broadcast the studio is that the collection program making is synthesized and broadcast is the application of one, directly provides program signal in blocks.

Generally, following work need be carried out in the studio: the live signal of playing existing material, collection in worksite multichannel video camera, and the vision signal that the vision signal and the existing material of video camera plays out switched or synthetic, by sound console the voice signal that on-the-spot microphone picks up is carried out the tone color adjustment, by film titler editor and formation captions image, the captions image is superimposed upon on the vision signal after synthetic by cut bank, final synthetic vision signal and audio signal are broadcasted or recorded.Above-mentioned each link, all be to adopt the equipment that separates to finish respectively traditionally, for example: use special video tape player to play existing material, use special-purpose hardware cut bank to finish the synthetic and switching of signal, use sound console to finish the tuning of multichannel voice frequency, use independently film titler to finish the editor of captions and play up output, use special vtr video tape record machine to finish recording of finished product program.In this case, realize that complete studio function needs the physical equipment of a lot of platform independent, needs being connected of very complicated all kinds of video/audio signal I/O cables and control signal cable again between the different equipment.System building cost height is not only safeguarded and is used also very complicatedly, and because the complicated link of annexation is a lot, often also more frequently breaks down, and has influence on the normal use of studio.

Up to the present, the development course of studio has mainly experienced the studio of traditional studio, half documentation and the studio three phases of documentation.

The tradition studio

In traditional studio, broadcast and record entirely and finish by player and video tape recorder.When broadcasting material, the video material that at first needs to broadcast in the studio is recorded on the polydisc tape, by many players these video materials is broadcasted manually again.And when recorded material, just need by video tape recorder, earlier material is recorded on the tape, re-use the volume machine is edited.

It is higher that subject matter is that hardware drops into, and the broadcast of material to record be mode by tape entirely, so its efficient is lower, also has certain loss on the signal quality, and has a certain amount of consumptive material (as magnetic drum, tape etc.).

Half documentation studio

Along with the development of technology in the radio, TV and film industries, the broadcast of looking audio frequency begins to adopt the mode of documentation.The TV station that has has used in studio system looks audio server and broadcasts.Before broadcast the studio, need upload to by the material that video/audio signal will broadcast in the video server, the control of video server broadcasts then.Recording also of studio signal can be adopted video server, but the file that collects can not directly use, and need download into tape in the mode of signal, just can offer other equipment and use.

Though subject matter is this pattern and has adopted documentation equipment, is to use flow process not smooth, so life period is long, application is few.

The documentation studio

Nonlinear editing system has been adopted in the making of present most of station synchronizations, and along with the development of technology, nonlinear use more and more is tending towards networking.Large-area use nonlinear editing system has meaned that station synchronization made system documentation, and the studio of adopting the mode of tape to carry out program is so again broadcasted and recorded, obviously be the waste resource with poor efficiency.Therefore in the documentation studio system, directly will look audio file and deliver to studio system and broadcast, the studio is recorded and is also adopted documentation equipment simultaneously, records the audio file of looking that gets off and directly delivers to make and edit or send into matchmaker's money in the net.Documentation is the main flow and the trend of present studio.

The subject matter of current fileization is that the studio fund input of pure documentation is big, and studio apparatus is various, and system building complexity, product up-gradation are transformed difficulty etc., and all needs professional and technical personnel's participation from building final use.

Summary of the invention

For solving prior art problems, the present invention proposes a kind of multifunctional all studio system and performs in a radio or TV programme method, and described system and method is realized the most equipment of former studio on a computer function realizes switching and stunt between a plurality of information sources.Described system and method is with the picture segmentation of a large scale display, the handover operation of a plurality of collection information sources, be presented at this large-screen touch-screen and finish, and realize control signal switching, tone color adjustment, captions broadcast etc. in the mode that the large-screen touch-screen use to touch.

The object of the present invention is achieved like this: a kind of multifunctional all studio system, described system comprises: a computer that has mouse and keyboard that is connected with external audio signal source with external video signal source, be provided with the multi-channel video input circuit that is connected with described external video signal source in the described computer, described multi-channel video input circuit is independently gathered the multi-channel video collection buffer memory of recording with support respectively to every road input signal and is connected, described multi-channel video collection buffer memory is recorded encoder with multi pass acquisition and is connected, and described multi pass acquisition is recorded encoder and is connected with memory; Be provided with the multichannel voice frequency input circuit that is connected with described external audio signal source in the described computer, described multichannel voice frequency input circuit is independently gathered the multichannel voice frequency collection buffer memory of recording with support respectively to every road input signal and is connected; Also be provided with multichannel voice frequency material source in the described computer, described multichannel voice frequency material source links to each other with the multichannel voice frequency decoder, described multichannel voice frequency decoder is connected with multichannel voice frequency material source cache, and described multichannel voice frequency is gathered buffer memory, multichannel voice frequency material source cache is connected with the sound console device; Also be provided with built-in video input signals source in the described computer; Described computer also is provided with the virtual background device; Described computer also is provided with the control operation resolution unit that is connected with touch-screen display and external cut bank and described mouse, keyboard, and described control operation resolution unit is connected with function control resolution unit; Described video acquisition buffer memory, sound console device, built-in video input signals source, function control resolution unit are connected with central processing unit; Described central processing unit is connected with output buffers, many picture segmentation and screen signal transducer; Described output buffers is recorded encoder with screen signal transducer, output circuit, real time flow medium encoder, support to the broadcast of the real-time recording of main output signal with many picture segmentation and is connected; Described many picture segmentation and screen signal transducer and large screen display and stereo set, described touch-screen display are connected; Described output circuit is connected with the television network of exporting as broadcast; Described real time flow medium encoder is connected with the Streaming Media distributor, and the Streaming Media distributor is connected with the computer network of exporting as network; Described broadcast is recorded encoder and is connected with memory.

A kind of multifunctional all of said system that uses is performed in a radio or TV programme method, and the step of described method is as follows:

The step of images acquired and sound: if external video/audio signal source is video camera then is used for video camera and changes scenery into electronic image signal and electronic voice signal, if external video/audio signal source provides the equipment of SDI, 1394, HDMI and VGA signal, comprising: a kind of vision signal and the audio signal then directly obtained in video camera, Blu-ray disc videocorder, hard disk videocorder, video server, satellite receiver, magnetic tape record/play camera, the non-linear editing computer;

The step of format identification:

Form that if external video signal source is a video camera then be used to discerns the picture signal of video camera output be numeral or simulation, if also will discerning of numeral is any among SDI, 1394, HDMI, the VGA;

If external video signal source is a kind of in Blu-ray disc player, hard disk player, the video server, the form that will discern the picture signal of external video signal source output equally is any among SDI, 1394, HDMI, the VGA;

What carry out simultaneously with above-mentioned collection video/audio signal source input step and format identification step is the step of obtaining captions, existing material, background and virtual studio scene from built-in video input signals source, that is: the captions device generate captions step, obtain the step that the step of existing material, the step of obtaining background from Background apparatus, virtual studio device generate the virtual studio scene from existing material memory;

Generate the step of captions in the captions device:

Contain caption editing device, captions memory, caption generator and captions buffer memory in the captions device, described caption editing device at first carries out the making work of subtitle template and caption content, described caption editing device links to each other with the captions memory, contain caption generator in the described captions device, described caption generator obtains subtitle template and the caption content made and carries out the captions generation from described captions memory, described caption generator links to each other with the captions buffer memory, and the caption signal that generates is sent in the captions buffer memory.

Obtain the step of existing material from existing material memory:

Contain existing material memory, existing material decoder, existing material buffer memory in the existing material playing device, described existing material memory links to each other with existing material decoder, and described existing material decoder links to each other with existing material buffer memory.The existing material that described existing material decoder will have in the material memory is decoded, and decoded video content is sent in the existing material buffer memory, finishes obtaining of existing material.

From Background apparatus, obtain the step of background:

Contain background memory and background buffer memory in the described Background apparatus, described background buffer memory obtains the background picture file from background memory.

The virtual studio device generates the step of virtual studio scene:

Described virtual studio device contains virtual scene producing device, virtual scene storage, virtual scene maker and virtual scene buffer memory.Described virtual scene producing device links to each other with the virtual scene storage, and described virtual scene storage links to each other with the virtual scene maker, and described virtual scene maker links to each other with the virtual scene buffer memory.Described virtual scene producing device is sent into the scene of making in the virtual scene storage, and described virtual scene maker obtains this scene and generates virtual scene from the virtual scene storage, finally sends in the virtual scene buffer memory.

The step of input-buffer: the virtual scene that is used for the video/audio signal that will gather, the caption content of captions maker generation, the background picture content of Background apparatus, the existing material that obtains, the generation of virtual scene maker from existing material decoder is sent into buffer memory and renewal synchronously;

The step that central processing unit is handled: be used for the vision signal audio signal of each road input buffer is selected, and the broadcast image that captions, acoustics are formed on superposeing, synthesizing, can between each road vision signal, switch by the mode of Direct Touch of operation mouse, keyboard or touch-screen display, the process of switching allows to use special effects to switch, described special effects is: be fade-in fade-out, draw picture, picture-in-picture, three-dimensional stunt switching effect, or carry out virtual background and handle, and HD/SD conversion;

The step of output buffers: be used for vision signal and audio signal, and vision signal, audio signal that editor finishes enter buffer memory and renewal synchronously with each road input;

Be divided into four the tunnel from the video-audio signal of output buffers output;

The first via: the step of split image: be used for that multichannel incoming video signal and outputting video signal are concentrated on a picture and divided frame distributes each road vision signal position in picture;

The step that shows: utilize the image of cutting apart to show each road incoming video signal in large screen display and the touch-screen display, audio signal and outputting video signal and output audio signal, and the control window of each control device, comprise: the control window after virtual studio control button and the expansion, control window after the control button of Background apparatus and the expansion, control window after the control button of existing material playing device and the expansion, control window after effect machine control button and the expansion, control window after captions device control button and the expansion, control window after sound console device control button and the expansion, the control window of soft handover platform control device, the while supervises the control operation of each control device in whole viewing area;

The step of feedback command: the mode of Direct Touch by operation mouse, keyboard or touch-screen display is carried out control operation, thereby realizes whole control of performing in a radio or TV programme process;

Wherein at first get access to control corresponding operation in the mode of Direct Touch, and identify control corresponding by the touch screen induction device and operate pairing mode of operation by touch-screen, as drag, click, release etc.Touch-screen calls pairing control command in this zone or position and correlation function thereof according to the suffered mode of operation in zone and position of correspondence then, as to operations such as signal switching, stunt stack, sound console control, subtitle superposition, existing material broadcast, virtual studio setting, background are provided with.Thereby realize that touch-screen display is to whole control of performing in a radio or TV programme process.

The second the tunnel: the step of broadcasting signal coding: be used for broadcasting signal is encoded, form program file;

The step that the broadcasting signal coded file stores: the program file that broadcasting signal coding back is formed is stored in the memory;

Third Road: the step that the broadcasting signal Streaming Media is handled: in the programs stored file, the program in the output buffers is carried out the Streaming Media encoding process;

The broadcast items files in stream media enters the step of network: will export computer network to through the flow-medium performance file of Streaming Media encoding process;

The the four the tunnel: the step of broadcasting signal output: be used for the outputting video signal and the audio signal of output buffers are sent into the television network broadcast by output circuit.

Step and the output buffers of handling with above-mentioned central processing unit and what broadcast that step carries out simultaneously is that extraneous signal is recorded, this step comprises: the step that the step of extraneous signal coding and extraneous signal coded file store:

The step of extraneous signal coding: described video acquisition buffer memory, sound console device are recorded encoder with collection and are linked to each other, and are used to finish the video content and the audio content coding formation extraneous signal coded file of extraneous signal.

The step that the extraneous signal coded file stores: described collection is recorded encoder and is linked to each other with memory, and the file that extraneous signal coding back generates is sent in the memory, finishes recording at extraneous signal.

The beneficial effect that the present invention produces is: for solving studio development some problems that present stage faced, the present invention has realized synthesizing the function of numerous equipment in traditional studio, itself just is equivalent to the studio system of a miniaturization, can independently finish the major part work of studio system.The present invention with the cut bank in traditional studio, sound console, record machine, put system equipments such as machine, film titler, editor, broadcast, virtual studio, TALLY system, video wall and all carry out software modularity, and these modules are carried out seamless integrated, finally be integrated into the studio system of multifunctional all.When studio system is integrated, the present invention is creationary especially have been proposed under the environment for use of studio, adopts touch-screen to finish the workflow of functions such as the signal switching of studio, sound adjustment, many picture functions, subtitle superposition, program broadcast, signal recording, virtual setting.Realize that signal switches and stunt is switched owing to adopt multiple signals input and buffer memory; Because the many picture segmentation of use realize cutting apart of many pictures and show; Owing to external video signal source and built-in video input signals source are set, and a plurality of buffer memorys realization multi-format multichannel collectings are set; And a plurality of encoders are set, and realize the input signal of gathering is stored in real time, be equivalent to real-time recording.The decoder and the existing material buffer memory of existing material are set, realize the broadcast of existing material.The virtual background device is set, and the realization virtual background is performed in a radio or TV programme.The TALLY controller is set, realizes the control of TALLY lamp.The sound console device is set, is implemented in touch-screen and carries out tuning.The captions device is set, realizes that many camera lenses captions broadcast function.Real time flow medium coding and Streaming Media distributor are set, realize the real time flow medium issue.The application model of touch-screen display and control operation resolution unit, function control resolution unit realization DirectTouch touch-screen is set.Central processing unit can be realized the HD/SD conversion, realizes the HD/SD compatibility.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the schematic diagram of the embodiment of the invention one described multifunctional all studio system;

Fig. 2 is that each controlled function button is the schematic diagram of closed condition in the divided frame of the embodiment of the invention seven described multifunctional all studio systems;

Fig. 3 is that the stunt control button in the divided frame of the embodiment of the invention seven described multifunctional all studio systems expands into the schematic diagram that stunt control window, soft handover platform control button expand into soft handover platform control window;

Fig. 4 is the schematic diagram of each display window of divided frame combination in any of the embodiment of the invention seven described multifunctional all studio systems;

Fig. 5 is the FB(flow block) that the embodiment of the invention eight described multifunctional alls are performed in a radio or TV programme method.

Embodiment

Embodiment one:

Present embodiment is a kind of multifunctional all studio system, as shown in Figure 1.Described system comprises: a computer that has mouse and keyboard that is connected with external audio signal source with external video signal source, be provided with the multi-channel video input circuit that is connected with described external video signal source in the computer, the multi-channel video input circuit is independently gathered the multi-channel video collection buffer memory of recording with support respectively to every road input signal and is connected, multi-channel video collection buffer memory is recorded encoder with multi pass acquisition and is connected, and multi pass acquisition is recorded encoder and is connected with memory.Be provided with the multichannel voice frequency input circuit that is connected with external audio signal source in the computer, the multichannel voice frequency input circuit is gathered buffer memory with multichannel voice frequency and is connected.Also be provided with multichannel voice frequency material source in the computer, described multichannel voice frequency material source links to each other with the multichannel voice frequency decoder, described multichannel voice frequency decoder is independently gathered the multichannel voice frequency material source cache of recording with support respectively to every road input signal and is connected, and audio collection buffer memory, audio material source cache are connected with the sound console device.Also be provided with built-in video input signals source in the computer.Computer also is provided with the virtual background device.Computer also is provided with the control operation resolution unit that is connected with touch-screen display and external cut bank and described mouse, keyboard, and the control operation resolution unit is connected with function control resolution unit.Video acquisition buffer memory, sound console device, built-in video input signals source, function control resolution unit are connected with central processing unit.Central processing unit is connected with output buffers, many picture segmentation and screen signal transducer.Output buffers is recorded encoder with screen signal transducer, output circuit, real time flow medium encoder, support to the broadcast of the real-time recording of main output signal with many picture segmentation and is connected.Many picture segmentation and screen signal transducer and large screen display and stereo set, touch-screen display are connected.Output circuit is connected with the television network of exporting as broadcast.The real time flow medium encoder is connected with the Streaming Media distributor, and the Streaming Media distributor is connected with the computer network of exporting as network.Broadcast is recorded encoder and is connected with memory.

The computer that present embodiment adopts is the configuration platform of two four nuclear CPU, and the general-purpose operating system, configure dedicated video integrated circuit board and audio frequency integrated circuit board are installed.The described central processing unit of present embodiment is not a CPU (CPU) in general sense, but one is specifically designed to the integration unit that the multiple function of signal/stunt switching, subtitle superposition, HD/SD conversion or the like is used.

The video aspect adopts high/standard definition digital I integrated circuit board, supports the input (sum is no more than 6 tunnel) of 6 road high/standard definition digital signals and 4 tunnel 1394 signals, supports the high/standard definition digital signal output of PGM and PVW, supports the output of DVI signal simultaneously.

The selection input (sum is no more than 6 tunnel) of 6 road AES/EBU digital audio and 6 road analogue audio frequencies is supported in the audio frequency aspect.

Multichannel input, signal switch and stunt is switched

Present embodiment is realized embedded multi-channel digital animation stand by the mode of multichannel input and multichannel buffer memory, and a plurality of passages can select SDI, 1394, HDMI, i-VGA and hard disk material as input signal arbitrarily.And realized the function of traditional cut bank by software design, this part software comprises stunt and makes module, support various switching stunts commonly used, comprise and being fade-in fade-out, draw picture, picture-in-picture, three-dimensional stunt etc., owing to stunt is to realize by add corresponding Effect Algorithm in the image file of storing in the input and output buffer memory, therefore when vision signal A is switched to vision signal B, at first the vision signal A in the input-buffer is copied in the output buffers, then with after vision signal A in the input-buffer and the stack of the vision signal B in the output buffers calculation process, copy in the output buffers, the respective algorithms of corresponding stunt is selected in the stack computing, vision signal B in the input-buffer is copied in the output buffers, thereby finish the switching of the band stunt of A to B vision signal, the making that can realize new stunt is promptly called in change by mathematical algorithm that stunt is superposeed, thereby realizes the expansion of stunt form.Signal switches the output signal of at first selecting PVW window and PGM window by the mode of DirectTouch or click, select the function button of stunt correspondence then, opening stunt selects window need to select the stunt template of application, on the soft handover platform, realize manual stunt switching then by T type bar, also can touch and press (click) AUTO button and realize that automatic stunt switches, can also realize no stunt switching by the CUT button.In the selection of stunt template, can also transfer stunt by shortcut and make module autonomous Design stunt, thereby realize the renewal and the expansion of trick mode.

Multi picture dividing device

Present embodiment adopts many picture segmentation and screen signal transducer, has realized many picture segmentation echo function.Each picture can combination in any be arranged, and corresponding input, output signal can supervise in real time in many pictures display window territory, and external video signal source comprises video camera, Blu-ray disc player, hard disk player, video server.Built-in video input signals source comprises existing material signal, caption signal, background signal, preparation broadcasting signal, just at broadcasting signal etc.Each signal in many pictures display window territory can show on touch-screen, also can output to large screen display by the DVI signal and cut apart demonstration or demonstration separately.Multi-image divider can the combination in any display window, and touch or mouse drag by the touch-screen position that can realize each display window, the adjustment of size, thereby finally realizes the combination in any of many picture segmentation.

Multi-format multichannel collecting device

Present embodiment has the function that a plurality of passages are recorded simultaneously, and the form of recording can freely define, the signal that enters each road all can also be recorded when recording composite signal down, can be used for later stage compilation, its function is equivalent to a plurality of DVR.The realization of multi-format multichannel collecting: on software interface, all be provided with the button of recording, stopping to record on the interface of the display window of each road extraneous signal and PGM display window, (click also can) can directly be clicked and realized beginning to record or stopping to record to the mode that touches by touch-screen display.

After completing, studio program needs to note; adopt video tape recorder to finish this work in traditional studio; therefore when needs are recorded multiple signals; will be equipped with many video tape recorders; cost is very high; and also pretty troublesome in the time of post-production, need not stop to change tape, perhaps tape is uploaded to non-volume.Present embodiment provides the multichannel recording function, support is to the real-time recording of main output signal, support is independently gathered respectively every road input signal and is recorded, support the audio format of looking commonly used, can self-defined format, the support two-way is gathered, and the material under gathering is preserved with file mode, is convenient to later stage compilation and uses.When will record a certain road signal, as long as click recording button and can realize recording on the corresponding picture to it.

Present embodiment can carry out the multi-format multichannel collecting and record in the program making process six road extraneous signals, one road main output PGM signal.

Be the real-time recording of present embodiment support to main output signal, support is independently gathered respectively every road input signal and is recorded, and supports the audio format of looking commonly used, can self-defined format, the support two-way is gathered, and the material under gathering is preserved with file mode, is convenient to later stage compilation and uses.

Its specific implementation is: the vision signal that need record, audio signal according to the system configuration of present embodiment, generate the default material of gathering form by video encoder, audio coder.In the signal recording process, adopt buffering, utilize token ring, when CPU takies the peak period, slow down coding rate, take the low ebb phase at CPU and accelerate coding rate, thus guaranteed finally that video, audio signal record smoothly, carry out stably.

Existing material playing device

Present embodiment can be supported the function that binary channels is play, and in view of having adopted idea of modular, the material of two passages is selected to be respectively two independently software modules with broadcast, and therefore two passages are independent fully, are equivalent to two players in the studio.Can control material broadcast, suspend and stop, and realized that by software design continuous broadcast, breakpoint broadcast, compile clean culture and go out, go into out to broadcast, function such as circulation broadcast.

Present embodiment is supported to play when two-way has material, can be used for broadcasting materials such as head, film clips, small pieces, advertisement.Broadcasting list that can self-defined material can add material to broadcasting list by the mode that file is chosen, and supports to adjust the broadcast order, supports to be provided with the point of going into out that material broadcasts, and supports breakpoint to play and play continuously.Can pass through control button: play, suspend, stop, the broadcast of the existing material of control stops action, also can stop action by the automatic broadcast that triggers existing material of PGM window.By existing material control module, open file dialogs, choose the material that needs broadcast, add the material playlist to, by Video Decoder, audio decoder, finish the decoding work of video respectively, the decoding work of audio frequency, decoder can be discerned the SD material automatically, the high definition material, and, provide the SD of YUVU or ARGB form according to system's setting, high-definition signal, material is finished the state that preparation is play automatically, when material is play, provide one tunnel vision signal, provide two-way audio to sound console to the soft handover platform, steady for what guarantee to broadcast, buffering is adopted in the material decoding, utilizes token ring, slows down decoding speed when the cpu busy percentage peak value, when the cpu busy percentage low ebb, accelerate decoding speed, thereby finally guarantee video, it is level and smooth that audio frequency broadcasts, steadily carry out.

The virtual studio device

Present embodiment is provided with the virtual studio device, realizes the virtual studio function, supports the input and output of (DV, HDV/DVCAM, DVCPRO), can carry out high performance real-time chroma key to signal and handle.The foreground signal that video camera picks up comprises blue curtain background is sent into the chroma key device in the Virtual Studio System, synthesizes the final composite signal of Virtual Studio System with the figure ground signal of computer output, can realize blocking and passing through of dummy object and prospect.

The function of described virtual studio can be carried out the replacement of virtual studio to PGM window and PVW window.In the use, control icon in corresponding virtual studio is arranged in the function control area of bottom, interface, click this icon, open the shotlist of virtual studio, select the background picture or the background video of certain position for video camera, road correspondence, click 1 couple of PGM of chroma key button then and detain picture, close picture, just can realize the replacement of background among the PGM, click 2 couples of PVW of chroma key button equally and detain picture, can realize the replacement of background among the PVW.This part the present invention detains picture to the signal source of blue background or green background to handle, its implementation is, after the video pictures that blue curtain of use or green curtain are taken and the background frame of setting are pressed into the stunt processing queue, remove blue curtain or green curtain and synthetic with background frame with the method for chroma key button picture, the picture of finishing dealing with promptly can be used for output.Background frame can be set at picture, also can be video pictures.

The TALLY device

The indication of TALLY lamp is all arranged in each input and output display window in the many pictures display window territory in the present embodiment, and red beacon light is known the current signal of exporting, the just signal source of PGM; Green beacon light is known the signal of preparing output, just identifies the signal source of PVW.Simultaneously the TALLY signal can be offered video camera, be convenient to the equipment that staff's identification is being worked.

The sound console device

The embedded multichannel mixer of present embodiment is used for the setting and the adjusting of studio sound.The setting of sound console and operation: the function button of pressing the sound console correspondence starts the sound console window, can regulate the size of multipath input audio, built-in audio frequency and output audio, the EQ Gain of each wave band etc. by the mode of touch-screen display touch or the mode of mouse drag.

Many camera lenses captions broadcast function

The captions module of present embodiment can be supported application such as main title, trip are rolled, roll screen, station symbol, and supports the real time modifying caption content.The preview picture that can show the captions camera lens in tabulation can carry out many camera lenses and broadcast.Captions are provided with: at first corresponding function button is set starts captions window is set by pressing captions, need to select the subtitle template of use, can revise the content of captions immediately, then captions are joined in the captions display window CG window, a plurality of subtitle template all can be added the CG display window, realize many camera lenses captions.To synthesize output to PGM output display window and video material on the captions by the CG button on the soft handover platform at last.(all operations is all supported the mode of Direct Touch or click)

The real time flow medium distributing device

Present embodiment is provided with exemplary stream media encoders and Streaming Media distributor, supports real-time Streaming Media issue, adopts the streaming media server technology, can carry out network direct broadcasting to the current program of taking.The task of the software in the present embodiment is exactly that the files in stream media that will collect is written to assigned address, and button click then triggers software and carries out the Streaming Media issue.

10) application model of Direct Touch touch-screen

Present embodiment has creatively been introduced touch screen technology in studio system, all available touch screen operation realization of the whole workflow of system is quite directly perceived to operating personnel, What You See Is What You Get.The application flow of Direct Touch touch-screen: in the interface display district of present embodiment, all input signals comprise that the existing vision signal of multichannel extraneous signal, background signal, caption signal and multichannel can touch the mode that drags by touch-screen display and directly be dragged to preparation broadcast video content display window or broadcasting the video content display window.The function button of each functional module also can be selected to use by the mode that staff touches.All operations are all very directly perceived, do the basis without any need for professional knowledge, What You See Is What You Get.

11) HD/SD compatible apparatus

HD/SD mixing manufacture, HD/SD that present embodiment can be implemented in the multifunctional all studio system import simultaneously, and can go up down conversion, the optional HD/SD pattern of output automatically.

The IO integrated circuit board that hardware unit adopted of the described system of present embodiment itself possesses the characteristic of HD/SD compatibility, the design before starting of the software of the described system of present embodiment has control module, the signal type of each interface of IO integrated circuit board can be set, thereby realize operation input/output signal HD/SD mixed editorial and output.

Embodiment two:

Present embodiment is the improvement of embodiment one, is the refinement of embodiment one about external video signal source and multichannel input circuit.The described external video signal source of present embodiment provides the equipment of SDI, 1394, HDMI and VGA signal, comprising: a kind of in video camera, Blu-ray disc videocorder, hard disk videocorder, video server, satellite receiver, magnetic tape record/play camera, the non-linear editing computer.Described multichannel input circuit comprises 6 road SDI identifiers, 4 tunnel 1394 identifiers, 4 road HDMI identifiers, i-VGA identifier, supports identification SDI, 1394, HDMI, the input of i-VGA form.

Present embodiment itself just is equivalent to a small-sized studio system, in the routine work of studio, can often run into the shooting of multimachine position, the shooting of maximum 6 seats in the plane of present embodiment support can use No. six video cameras to take at most in promptly taking at the scene.Adopted high SD compatible with digital IO integrated circuit board simultaneously, with all kinds of main frame rear boards of looking audio interface and control interface, can support the signal of SDI, 1394, HDMI and VGA interface, be connected with the rear board of present embodiment as long as will satisfy the video camera of above-mentioned interface, after starting the software module of present embodiment, just can use all functions of present embodiment to carry out shooting and made.

The IO integrated circuit board of present embodiment is supported the input and the output of a plurality of vision signals, the software module of present embodiment is with board card module Coordination Treatment signal the time, adopt the echo of the method processing signals of multimedia clock for the input signal that receives by integrated circuit board, can guarantee the frame per second of corresponding video standard like this.Use the hardware interrupts function of integrated circuit board to realize the echo and the output of PGM and PVW two paths of signals simultaneously.Each echo picture can combination in any be arranged, and corresponding input, output signal can supervise in real time in many picture-display-regions territory, comprise camera signal, extraneous signal, existing material signal, caption signal, background signal, PGM signal, PVW signal etc.Each signal display window in many picture-display-regions territory can also output to large-size screen monitors by the DVI signal and show respectively.

Embodiment three:

Present embodiment is the improvement of embodiment two, is to the refinement of TALLY controller and TALLY system on the basis of embodiment two.Described central processing unit is connected with the TALLY controller, the TALLY controller equates with a plurality of and number of cameras and is connected with corresponding video camera physical unit TALLY lamp together respectively, the TALLY controller links to each other with the screen signal transducer with many picture segmentation, and the TALLY modulating signal of representative TALLY modulating signal of corresponding video camera and corresponding built-in vision signal is presented in video camera or the display window of built-in vision signal correspondence on split image one jiao.Central processing unit is with the circuit notice TALLY controller of signal output, and the TALLY controller shows the TALLY modulating signal with this line status on window corresponding on many picture segmentation screen.Simultaneously, if this line signal is external camera signal, the TALLY controller is transferred to TALLY lamp on the corresponding video camera by physical circuit with this signal simultaneously, controls it and lights.

The TALLY lamp is an indicator light on the video camera, is used to show that the vision signal of this video camera is broadcasted.A kind of auxiliary system when the TALLY prompt system is video system work, tool plays a very important role in the studio, it can in time remind the operating state of PD program director, shooting person, technical staff studio, has the effect of coordinating director, shooting person and host's work in program carries out simultaneously.Can see the indication of TALLY lamp in many picture areas of present embodiment, red beacon light is known the current signal of exporting, the just signal source of PGM; Green beacon light is known the signal of preparing output, just identifies the signal source of PVW, and the TALLY signal also can offer video camera simultaneously.

The TALLY system of present embodiment is made up of a controller and some TALLY lamps, controller can be connected with the interface of any cut bank, studio station, matrix, line between each TALLY lamp is bus structures, available and the twisted-pair feeder that connects or common single-core shielding line connect, when the action of switching signal, corresponding TALLY lantern festival automatic color-changing.

Embodiment four:

Present embodiment is the improvement of the foregoing description, is the refinement of the foregoing description about external audio signal source and sound console device.Described external audio signal source is microphone or the audio-frequence playback equipment on each video camera; The audio frequency input circuit is supported the selection input (sum is no more than 6 tunnel) of 6 road AES/EBU digital audio and 6 road balance simulation audio frequency, the input of two path built-in audio frequency; Described sound console device is supported the tuning of 8 road audio input signals, the tuning of 2 road audio output signals; Pairing audio signal is presented at a jiao in the corresponding display window in many picture segmentation zone with the form of change bright wisp, and by sound console control volume, audio.

When handling vision signal, the function of sound console that present embodiment itself is integrated can be adjusted the audio signal of input and output.Sound console is a core control equipment in the audio system of studio, and the collection and treatment of various sources of sound and sharing out the work is all finished by sound console, generally on sound console sound is comprehensively controlled.Embedded No. 8 sound consoles of present embodiment, 6 tunnel external audio frequency can directly insert by the rear board of present embodiment, and two path built-in audio frequency are used for the adjustment to the existing audio material of present embodiment, also have the adjustment control of two-way output audio simultaneously.In the use, at first the source of sound with correspondence links to each other with the interface of present embodiment rear board, after the software module of startup present embodiment, click the sound console control icon of below, interface and can open sound console control interface, thereby realization is to the adjustment of sound.

The sound console implementation is: software will drive the voice data of the outside input get access to and voice data that existing material decodes adds annular buffer queue by sound card ASIO, according to the yield value of setting in the sound console interface volume on each road is calculated in real time, input and output mapping scheme according to configuration adds output buffers to the voice data through audio mixing processing and output gain processing again, passes through sound card driver circuit outputting audio data afterwards to sound card.In the program operation process, volume indicator Real time dynamic display current volume will have prompting frame and show current yield value in real time when mouse moves to certain volume indicator.Thereby finally realized to the adjusting of audio signal with supervise.

Embodiment five:

Present embodiment is the improvement of the foregoing description, is the refinement of the foregoing description about Background apparatus, captions device, existing material broadcast device.The described built-in video input signals of present embodiment source comprises: have multichannel background maker and multichannel background buffer memory Background apparatus, have multichannel caption generator and multichannel captions buffer memory the captions device, have from memory the existing material broadcast device of existing material decoder of the multichannel of extracting existing material and decoding and the existing material buffer memory of multichannel; The existing material vision signal that the captions vision signal that the background video signal that Background apparatus generates, caption generator generate, existing material broadcast device broadcast is presented at respectively on the split image in separately the display window.

In studio broadcast process, when usually will use static background, for example TV station overhauls or breaks in the process night.Background apparatus has promptly satisfied this demand, at first at the corresponding background picture of the corresponding memory block of memory stored, then the pairing data flow of these pictures is stored in the background buffer memory of Background apparatus, directly call in the background buffer memory pairing image data to the pairing buffer memory of background the preview window that is used for the background echo by the control command of Central Control Module at last, finally, the background signal broadcast is gone by modes such as Direct Touch by the signal switching command.

In the manufacturing process of studio program, the making of captions also is absolutely necessary.The function of captions making that present embodiment is integrated, this realizes by the caption editing device.Have captions control icon to call subtitle control module for clicking below main interface, also there is corresponding caption preview display window (CG) in divided frame echo zone.During use, click the icon of captions device correspondence, open a shotlist, can see the preview effect of captions camera lens, choose a camera lens, click and play the effect that just can see in the preview window of CG that captions broadcast, click overlapping text button (CG IN/OUT), can be on output signal (PGM) with this subtitle superposition.The present embodiment support is controlled a plurality of captions camera lenses respectively and is play, simultaneously the subscript autograph, roll screen, station symbol, clock; And support the real time modifying caption content, double-click camera lens and just can revise content.

In order to guarantee the extensibility of system, system's employing socket technology has realized the order communication between control end and the caption system, and communication instruction adopts the XML form to realize.

Article one, the instruction basic format is as follows:

<？xml?version＝″1.0″encoding＝″UTF-16″？>

<ncg?version＝″1.0″

xmlns：xsi＝http://www.w3.org/2001/XMLSchema-instancehttp://www.w3.org/2001/XMLSch

ema-instance?xsi：noNamespaceSchemaLocation＝″ncg.xsd″>

<play>

</play>

</ncg>

Play up data link:

Realization submits to main system to handle the caption system rendering result.

This link is mutual because relate to mass data, has adopted communication between the share memory technology implementation process.

For data are played up in synchronous submission in real time, system design one sets of data exchange instruction guarantee that correct submission in real time plays up data.

The specific implementation of captions module is: the invention provides independent process caption rendering engine, by shared drive Data transmission and order, the Buffer behind the output caption rendering offers the stack of stunt module.The project file PRJ file of captions comprises many camera lenses.Generate the XML file when PRJ file is derived, comprised the thumbnail information of each camera lens, lemma information.Not by explorer, the XML file in the direct reading disk catalogue.The camera lens icon display that comprises among the XML in subtitle list.When loading the XML file, read all lemma information, choose camera lens, can play at the preview window, this window becomes the modification pattern during double-click.Modification finishes and calls the CG order after confirming and play up and return first frame again.Send order and obtain Buffer (interruption is set) by shared drive.Every camera lens all can be play separately, and the last captions control button in the control panel of captions module is at every shot record state.

Existing material of the present invention is play the function that can support that binary channels is play, in view of having adopted idea of modular, the material of two passages is selected to be respectively two independently software modules with broadcast, and therefore two passages are independent fully, are equivalent to two players in the studio.Can control material broadcast, suspend and stop, and realized that by software design continuous broadcast, breakpoint broadcast, compile clean culture and go out, go into out to broadcast, function such as circulation broadcast.

Play when two-way has material, can be used for broadcasting materials such as head, film clips, small pieces, advertisement.Broadcasting list that can self-defined material can add material to broadcasting list by the mode that file is chosen, and supports to adjust the broadcast order, supports to be provided with the point of going into out that material broadcasts, and supports breakpoint to play and play continuously.Can pass through control button: play, suspend, stop, the broadcast of the existing material of control stops action, also can stop action by the automatic broadcast that triggers existing material of PGM window.By existing material control module, open file dialogs, choose the material that needs broadcast, add the material playlist to, by Video Decoder, audio decoder, finish the decoding work of video respectively, the decoding work of audio frequency, decoder can be discerned the SD material automatically, the high definition material, and, provide the SD of YUVU or ARGB form according to system's setting, high-definition signal, material is finished the state of CUE automatically, when material is play, provide one tunnel vision signal, provide two-way audio to sound console to the soft handover platform, steady for what guarantee to broadcast, buffering is adopted in the material decoding, utilizes token ring, slows down decoding speed when the cpu busy percentage peak value, when the cpu busy percentage low ebb, accelerate decoding speed, thereby finally guarantee video, it is level and smooth that audio frequency broadcasts, steadily carry out.

Embodiment six:

Present embodiment is the improvement of the foregoing description, is the refinement about the control operation resolution unit of the foregoing description.The described control operation resolution unit of present embodiment comprises: background control device, caption control device, existing material control device, soft handover platform control device, sound console control device, stunt control device, virtual studio control device, broadcasting signal are recorded control device.

The control operation resolution unit can be sent control commands corresponding after receiving the control corresponding instruction.Main resolution unit is:

The background control device:

In studio broadcast process, when usually will use static background.At first at the corresponding background picture of the corresponding memory block of memory stored, then the pairing data flow of these pictures is stored in the background buffer memory of Background apparatus, directly call in the background buffer memory pairing image data to the pairing buffer memory of background the preview window that is used for the background echo by the control command of Central Control Module at last, finally, the background signal broadcast is gone by modes such as Direct Touch by the signal switching command.

Caption control device:

Subtitle control module can be supported application such as main title, trip are rolled, roll screen, station symbol, and supports the real time modifying caption content.The preview picture that can show the captions camera lens in tabulation can carry out many camera lenses and broadcast.Captions are provided with: at first corresponding function button is set starts captions window is set by pressing captions, need to select the subtitle template of use, can revise the content of captions immediately, then captions are joined in the captions display window CG window, a plurality of subtitle template all can be added the CG display window, realize many camera lenses captions.To synthesize output to PGM output display window and video material on the captions by the CG button on the soft handover platform at last.(all operations is all supported the mode of Direct Touch or click)

Existing material control device:

The promptly existing material playing device of existing material control device, can support the function that binary channels is play, in view of having adopted idea of modular, the material of two passages is selected to be respectively two independently software modules with broadcast, therefore two passages are independent fully, are equivalent to two players in the studio.Can control material broadcast, suspend and stop, and realized that by software design continuous broadcast, breakpoint broadcast, compile clean culture and go out, go into out to broadcast, function such as circulation broadcast.

Soft handover platform control device, stunt control device:

The present invention has realized the function of traditional cut bank by software design, this part software comprises stunt and makes module, support various switching stunts commonly used, comprise and being fade-in fade-out, draw picture, picture-in-picture, three-dimensional stunt etc., owing to stunt is to realize by add corresponding Effect Algorithm in the image file of storing in the input and output buffer memory, therefore when vision signal A is switched to vision signal B, at first the vision signal A in the input-buffer is copied in the output buffers, then with after vision signal A in the input-buffer and the stack of the vision signal B in the output buffers calculation process, copy in the output buffers, the respective algorithms of corresponding stunt is selected in the stack computing, vision signal B in the input-buffer is copied in the output buffers, thereby finish the switching of the band stunt of A to B vision signal, the making that can realize new stunt is promptly called in change by mathematical algorithm that stunt is superposeed, thereby realizes the expansion of stunt form.The output signal of PVW window and PGM window is at first selected in the switching of signal by the mode of Direct Touch or click, select the function button of stunt correspondence then, opening stunt selects window need to select the stunt template of application, on the soft handover platform, realize manual stunt switching then by T type bar, also can touch and press (click) AUTO button and realize that automatic stunt switches, can also realize no stunt switching by the CUT button.

The sound console control device:

The embedded multichannel mixer of present embodiment is used for the setting and the adjusting of studio sound.The setting of sound console and operation: press the corresponding function button of sound console and start the sound console window, the size that the mode that touches by touch-screen display or the mode of mouse drag can be regulated multipath input audio, built-in audio frequency and output audio.Software will drive the voice data of the outside input get access to and voice data that existing material decodes adds annular buffer queue by sound card ASIO, according to the yield value of setting in the sound console interface volume on each road is calculated in real time, input and output mapping scheme according to configuration adds output buffers to the voice data through audio mixing processing and output gain processing again, passes through sound card driver circuit outputting audio data afterwards to sound card.In the program operation process, volume indicator Real time dynamic display current volume will have prompting frame and show current yield value in real time when mouse moves to certain volume indicator.Thereby finally realized to the adjusting of audio signal with supervise.

The virtual studio control device:

Virtual studio function of the present invention is supported the input and output of (DV, HDV/DVCAM, DVCPRO), can carry out high performance real-time chroma key to signal and handle.The foreground signal that video camera picks up comprises blue curtain background is sent into the chroma key device in the Virtual Studio System, synthesizes the final composite signal of Virtual Studio System with the figure ground signal of computer output, can realize blocking and passing through of dummy object and prospect.Its implementation is: after the video pictures that blue curtain of use or green curtain are taken and the background frame of setting were pressed into the stunt processing queue, with the blue curtain of method removal or the green curtain and synthetic with background frame of chroma key button picture, the picture of finishing dealing with promptly can be used for exporting.Background frame can be set at picture, also can be video pictures.

Broadcasting signal is recorded control device:

Present embodiment provides the multichannel recording function, all be provided with the button of recording, stopping to record on the interface of the display window of each road extraneous signal and PGM display window, (click also can) can directly be clicked and realized beginning to record or stopping to record to the mode that touches by touch-screen display.Support is to the real-time recording of main output signal, and support is independently gathered respectively every road input signal and recorded, and supports the audio format of looking commonly used, can self-defined format, the support two-way is gathered, and the material that collects is preserved with file mode, is convenient to later stage compilation and uses.When will record a certain road signal, as long as click recording button and can realize recording on the corresponding picture to it.Its specific implementation is: the vision signal that need record, audio signal according to the system configuration of present embodiment, generate the default material of gathering form by video encoder, audio coder.In the signal recording process, adopt buffering, utilize token ring, when CPU takies the peak, slow down coding rate, when CPU takies low ebb, accelerate coding rate, thus guaranteed finally that video, audio signal record smoothly, carry out stably.

Embodiment seven:

Present embodiment is the improvement of the foregoing description, is the refinement about the picture segmentation of split image of the foregoing description, as Fig. 2,3,4, shown in.Present embodiment is in the picture segmentation viewing area of described split image, shown window type comprises: broadcasting and looking the audio content display window, prepare to broadcast and to look audio content display window, each road external video/audio signal source contents display window, each path built-in and look audio input signal source contents display window, each control device display window; Described each path built-in is looked audio input signal source contents display window and is comprised: background content display window, caption preview content display window, existing material play content display window.Described each control device display window comprises: virtual studio control window, background control window, stunt control window, existing material Play Control window, captions control window, sound console control window, soft handover platform control window.

Fig. 2 is a picture segmentation schematic diagram of the split image of present embodiment, and wherein each controlled function button is the schematic diagram of closed condition.In the picture segmentation viewing area of this split image, shown window type comprises: broadcasting the video content display window or claiming main output PGM display window, prepare to broadcast the video content display window or claim pre-prison output PVW display window, each road external vision signal source contents display window, each path built-in video input signals source contents display window and each road control button comprise: the virtual studio control button, the background control button, existing material broadcast button, stunt control window button, the captions control button, the sound console control button, soft handover platform control button.Can enter each corresponding display window by these buttons.The display window of each road correspondence comprises: virtual studio control window, background content display window, existing material are play display window, stunt control window, caption preview display window, sound console control window, soft handover platform control window.Fig. 3 is the situation that stunt control window and soft handover platform control window launch, and the expanded view of other button can be as example.

Embodiment eight:

Present embodiment is to use the multifunctional all of the described system of the foregoing description to perform in a radio or TV programme method.The step of the described method of present embodiment is as follows:

The step of images acquired: if external video signal source is video camera then changes scenery into electronic image with video camera, if external video signal source provides the equipment of SDI, 1394, HDMI and VGA signal, comprising: a kind of vision signal and the audio signal then directly obtained in video camera, Blu-ray disc videocorder, hard disk videocorder, video server, satellite receiver, magnetic tape record/play camera, the non-linear editing computer.

The step of format identification: if form that external video signal source is a video camera then be used to discerns the image of video camera output be numeral or simulation, if also will discerning of numeral is that among SDI, 1394, HDMI, the VGA that is a kind of, will to discern equally be that among SDI, 1394, HDMI, the VGA that is a kind of if external video signal source is a kind of in Blu-ray disc player, hard disk player, the video server.

Generate the step of captions in the captions device:

Obtain the step of existing material from existing material memory:

From Background apparatus, obtain the step of background:

The virtual studio device generates the step of virtual studio scene:

The step of input-buffer: be used for the vision signal that to gather and audio signal or captions device editor's captions or enter buffer memory and upgrade synchronously from the existing material that memory takes out.

The step that central processing unit is handled: be used for the vision signal audio signal of each road input buffer is selected, and the broadcast image that captions, acoustics are formed on superposeing, synthesizing, can between each road vision signal, switch by the mode of Direct Touch of operation mouse, keyboard or touch-screen display, the process of switching allows to use is fade-in fade-out, draws picture, picture-in-picture, three-dimensional stunt switching effect, or carry out virtual background and handle, and HD/SD conversion.

Carry out the characteristics that control operation is a present embodiment in the mode of Direct Touch.As a rule, the personnel of studio also get used to the use of various discrete hardwares.Present embodiment is with in the creationary various controls that are applied in the studio of the mode of this Direct Touch, make control directly perceived more, convenient, and realize that various soft controls are comprehensively on a touch-screen, in the studio, use the mode of Direct Touch when signal switches, to realize What You See Is What You Get, directly just drag and to call function corresponding, some misoperations when having avoided traditional operation by click.

The step of output buffers: be used for vision signal and audio signal, and vision signal, audio signal that editor finishes enter buffer memory and renewal synchronously with each road input.

Be divided into four the tunnel from the video-audio signal of output buffers output.

The first via: the step of many picture segmentation: be used for that multichannel incoming video signal and outputting video signal are concentrated on a picture and divided frame distributes each road vision signal position in picture.

The step that shows: utilize the image of cutting apart to show each road incoming video signal in large screen display and the touch-screen display, audio signal and outputting video signal and output audio signal, and the control window of each control device, comprise: the control window after virtual studio control button and the expansion, control window after the control button of Background apparatus and the expansion, control window after the control button of existing material playing device and the expansion, control window after effect machine control button and the expansion, control window after captions device control button and the expansion, control window after sound console device control button and the expansion, the control window of soft handover platform control device, the while supervises the control operation of each control device in whole viewing area.

The step of feedback command: the mode of Direct Touch by operation mouse, keyboard or touch-screen is carried out control operation.Carry out the operation of various command by the mode of mouse, keyboard or touch-screen display Direct Touch, as drag, click, discharge, and then realize such as: regulate volume and tonequality, captions setting and operation, adding background or various existing material, make and have broadcast of virtual background or the like.

The mode of Direct Touch gets access to the control corresponding operation by touch-screen, and identifies control corresponding by the touch screen induction device and operate pairing mode of operation, as drags, clicks, discharges; Touch-screen calls pairing control command in this zone or position and correlation function thereof according to the suffered mode of operation in zone and position of correspondence then, as to operations such as signal switching, stunt stack, sound console control, subtitle superposition, existing material broadcast, virtual studio setting, background are provided with; Thereby realize that touch-screen display is to whole control of performing in a radio or TV programme process.

What step of handling with above-mentioned central processing unit and steps such as output buffers and broadcast were carried out simultaneously is that extraneous signal is recorded, and this step comprises: the step that the step of extraneous signal coding and extraneous signal coded file store:

By present embodiment as can be seen, support of the present invention realizes the switching controls and the broadcast of total digitalization by the mode of Computer Processing to the studio multiple signals, when realizing broadcast, also support collection is included in the synthetic program and the multichannel on-site signal source of final broadcast in real time, support follow-up further making after the file storage of gathering, this has played direct material to documentation, the live flow process of digitized TV station and has collected and the program synthesis, has solved the problem that original simulation studio and digitlization record and broadcast system disconnect.

Embodiment nine:

Present embodiment is to implement eight improvement, is the refinement that the mode of the Direct Touch of embodiment eight described touch-screen displays is carried out control operation.It is as follows that the mode of the Direct Touch of the described touch-screen display of present embodiment is carried out the control operation substep:

The position of identification staff on the touch-screen of touch-screen display is to determine touch-screen respective regions and the pairing function in position;

Touch-screen gets access to the control corresponding operation, and identifies control corresponding by the touch screen induction device and operate pairing mode of operation, as drags, clicks, discharges;

Touch-screen calls pairing control command in this zone or position and correlation function thereof according to the suffered mode of operation in zone and position of correspondence, as to operations such as signal switching, stunt stack, sound console control, subtitle superposition, existing material broadcasts, virtual studio setting, background are provided with, thereby the realization touch-screen display is to whole control of performing in a radio or TV programme process.

Present embodiment is the mode of a kind of similar mouse, Keyboard Control and operating computer, but operation is more directly perceived, simpler.Using the mode of the Direct Touch of touch-screen display is exactly that the action of staff on touch-screen display turned to control signal.At first discern the position of staff on the touch-screen of touch-screen display, to determine touch-screen respective regions and the pairing function in position; Touch-screen gets access to the control corresponding operation, and identifies control corresponding by the touch screen induction device and operate pairing mode of operation, as drags, clicks, discharges; Touch-screen calls pairing control command in this zone or position and correlation function thereof according to the suffered mode of operation in zone and position of correspondence, as to operations such as signal switching, stunt stack, sound console control, subtitle superposition, existing material broadcasts, virtual studio setting, background are provided with, thereby the realization touch-screen display is to whole control of performing in a radio or TV programme process.

Embodiment ten:

Present embodiment is the improvement of embodiment eight, is that embodiment eight is about the switching of the mode of touch-screen display Direct Touch and the refinement of switching special effects.The substep that the mode of the Direct Touch of the described described touch-screen display of present embodiment is switched between each road vision signal is as follows:

The position of identification staff on the touch-screen of touch-screen display, selected to determine which vision signal.

On the display window territory of selected vision signal, add green frame, selected to show this road vision signal.

The slip of identification staff on touch-screen display, prepare to broadcast the district to determine whether that the vision signal that will choose is dragged to, if staff discharges then confirms that the vision signal that will choose is placed on and prepare to broadcast the district prepare broadcasting the district, and this road vision signal switched to prepare to broadcast the district.

Select to switch the type of stunt: be fade-in fade-out, draw picture, picture-in-picture, three-dimensional stunt type.

The video image that the stunt type that use is chosen will prepare to broadcast the video image in district and broadcasting the district carries out handoff procedure and comprises step by step following:

The video image that preparation in the input-buffer is broadcasted the district copies in the output buffers.

After preparation in the input-buffer being broadcasted the video image and the video image stack calculation process of broadcasting the district in the output buffers in district, copy in the output buffers, the stack computing can be to be fade-in fade-out, to draw a kind of in picture, picture-in-picture, the three-dimensional.

The video image that broadcasts the district in the input-buffer is copied in the output buffers, prepare to broadcast the video image in district to the switching of broadcasting the video image in district thereby finish.

Realized that input/output signal is after the echo of divided frame, present embodiment supports each input signal to switch to the signal of output signal, the output signal of at first selected PVW window and PGM window, just the signal of PVW window can be switched to the PGM output window by the handoff functionality key, here can earlier each input signal be inserted the PVW window by the conventional operation flow process, and then switch to the PGM window, also can pull or use the method for the described Direct Touch of present embodiment directly input signal to be dragged to the PGM window and realize signal output by mouse.The technology that this link mainly adopts is: software at first gets access to vision signal, and store annular input-buffer formation frame by frame into, the main output of process locking of the frame that is used for exporting in taking-up and pre-prison output indicator, release again after finishing, sequential when so just having guaranteed to switch output signal, realized by signal by the handoff procedure that is input to output, and avoided the problem of the float that might cause simultaneously owing to switch.

Signal is by the handoff procedure of PVW window to the PGM window, and present embodiment supporting signal stunt is switched.After the output signal of selected PVW outlet, open stunt and select window need to select the stunt template of using, on the soft handover platform, realize that by T type bar manual stunt switches then, or touch and press (click) AUTO button and realize that automatic stunt switches.

The implementation of effect machine mainly comprises three parts technically: 1) signal source module.2) stunt rendering module.3) output module.Its operational mode is: center processing unit (equals the signal unit time average time) at fixing (or on-fixed) in the time interval and is pressed into signal to the stunt rendering module, and the stunt rendering module is lined up formation with the signal of input, and the notification signal source module.Signal source module is found to remain to take out a signal and import processing after the processing signals, afterwards the signal of handling is pressed in the rendering module formation, and notifies rendering module.Carrying out (or wait) next task afterwards handles.Meanwhile, rendering module is found to remain after the processing signals, takes out a signal and carries out stunt and handle, be pressed into afterwards in the output module formation, and the notice output module, carry out the processing of (or wait) next task afterwards.After output module finds to remain processing signals, signal is exported processing, and final signal is returned to external module, carry out (or wait) next task afterwards and handle.

Present embodiment picture and the stunt parameter of finally using the mode of streamline that each frame need be handled is pressed in the processing queue of stunt module like this, effect machine ejects the frame of finishing dealing with, by call back function this frame is put into output buffers, hardware interrupts by the IO integrated circuit board triggers calling of output function, finally realizes the stunt handoff functionality.

It should be noted that at last, below only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to the preferred arrangement scheme, those of ordinary skill in the art is to be understood that, can be to technical scheme of the present invention (such as device, the function of unit, arrangement, running of step or the like) makes amendment or be equal to replacement, and do not break away from the spirit and scope of technical solution of the present invention.

Claims

1. multifunctional all studio system, described system comprises: a computer that has mouse and keyboard that is connected with external audio signal source with external video signal source, it is characterized in that, be provided with the multi-channel video input circuit that is connected with described external video signal source in the described computer, described multi-channel video input circuit is independently gathered the multi-channel video collection buffer memory of recording with support respectively to every road input signal and is connected, described multi-channel video collection buffer memory is recorded encoder with multi pass acquisition and is connected, and described multi pass acquisition is recorded encoder and is connected with memory; Be provided with the multichannel voice frequency input circuit that is connected with described external audio signal source in the described computer, described multichannel voice frequency input circuit is independently gathered the multichannel voice frequency collection buffer memory of recording with support respectively to every road input signal and is connected; Also be provided with multichannel voice frequency material source in the described computer, described multichannel voice frequency material source links to each other with the multichannel voice frequency decoder, described multichannel voice frequency decoder is connected with multichannel voice frequency material source cache, and described multichannel voice frequency is gathered buffer memory, multichannel voice frequency material source cache is connected with the sound console device; Also be provided with built-in video input signals source in the described computer; Described computer also is provided with the virtual background device; Described computer also is provided with the control operation resolution unit that is connected with touch-screen display and external cut bank and described mouse, keyboard, and described control operation resolution unit is connected with function control resolution unit; Described video acquisition buffer memory, sound console device, built-in video input signals source, function control resolution unit are connected with central processing unit; Described central processing unit is connected with output buffers, many picture segmentation and screen signal transducer; Described output buffers is recorded encoder with screen signal transducer, output circuit, real time flow medium encoder, support to the broadcast of the real-time recording of main output signal with many picture segmentation and is connected; Described many picture segmentation and screen signal transducer and large screen display and stereo set, described touch-screen display are connected; Described output circuit is connected with the television network of exporting as broadcast; Described real time flow medium encoder is connected with the Streaming Media distributor, and the Streaming Media distributor is connected with the computer network of exporting as network; Described broadcast is recorded encoder and is connected with memory.

2. system according to claim 1, it is characterized in that, described external video signal source provides the equipment of SDI, 1394, HDMI and VGA signal, comprising: a kind of in video camera, Blu-ray disc videocorder, hard disk videocorder, video server, satellite receiver, magnetic tape record/play camera, the non-linear editing computer; Described multi-channel video input circuit and multichannel voice frequency input circuit comprise 6 road SDI identifiers, 4 tunnel 1394 identifiers, 4 road HDMI identifiers, i-VGA identifier, support identification SDI, 1394, HDMI, the input of i-VGA interface.

3. system according to claim 2, it is characterized in that, described central processing unit is connected with the TALLY controller, described TALLY controller is connected with a plurality of TALLY lamps that equate with number of cameras and install respectively on corresponding video camera, described TALLY controller is connected with the screen signal transducer with many picture segmentation, and the TALLY modulating signal of representative TALLY modulating signal of corresponding video camera and corresponding built-in vision signal is presented in video camera or the display window of built-in vision signal correspondence on split image one jiao.

4. according to claim 1 or 2 or 3 described systems, it is characterized in that described external audio signal source is microphone or the audio-frequence playback equipment on each video camera; The audio frequency input circuit is supported the selection input of 6 road AES/EBU digital audio and 6 road balance simulation audio frequency, the input of two path built-in audio frequency; Described sound console device is supported the tuning of 8 road audio input signals, the tuning of 2 road audio output signals; Pairing audio signal is presented at a jiao in the corresponding display window in many picture segmentation zone with the form of change bright wisp, and can control volume, audio by sound console.

5. system according to claim 4, it is characterized in that, comprise: the Background apparatus that has multichannel background maker and multichannel background buffer memory in described built-in video input signals source, having virtual scene makes, the virtual scene storage, the virtual scene maker, the virtual studio device of virtual scene buffer memory, have multichannel caption editing device, the captions memory, the captions device of caption generator and multichannel captions buffer memory, the existing material broadcast device that has existing material decoder of the multichannel of from memory, extracting existing material and decoding and the existing material buffer memory of multichannel; The existing material vision signal that the captions vision signal that the virtual studio vision signal that the background video signal that Background apparatus generates, virtual studio device generate, caption generator generate, existing material broadcast device broadcast is presented at respectively on the split image in separately the display window.

6. system according to claim 5, it is characterized in that, comprise in described control operation resolution unit: background control device, caption control device, existing material control device, soft handover platform control device, sound console control device, stunt control device, virtual studio control device, broadcasting signal are recorded control device.

7. system according to claim 6, it is characterized in that, in the picture segmentation viewing area of described split image, shown window type comprises: broadcasting and looking the audio content display window, prepare to broadcast and to look audio content display window, each road external video/audio signal source contents display window, each path built-in and look audio input signal source contents display window, each control device display window; Described each path built-in is looked audio input signal source contents display window and is comprised: background content display window, caption preview content display window, existing material play content display window, virtual studio content display window; Described each control device display window comprises: virtual studio control window, background control window, stunt control window, existing material Play Control window, captions control window, sound console control window, soft handover platform control window.

8. one kind is used the multifunctional all of the described system of claim 1 to perform in a radio or TV programme method, it is characterized in that the step of described method is as follows:

The step of format identification:

Generate the step of captions in the captions device:

Contain caption editing device, captions memory, caption generator and captions buffer memory in the captions device, described caption editing device at first carries out the making work of subtitle template and caption content, described caption editing device links to each other with the captions memory, contain caption generator in the described captions device, described caption generator obtains subtitle template and the caption content made and carries out the captions generation from described captions memory, described caption generator links to each other with the captions buffer memory, and the caption signal that generates is sent in the captions buffer memory;

Obtain the step of existing material from existing material memory:

Contain existing material memory, existing material decoder, existing material buffer memory in the existing material playing device, described existing material memory links to each other with existing material decoder, and described existing material decoder links to each other with existing material buffer memory; The existing material that described existing material decoder will have in the material memory is decoded, and decoded video content is sent in the existing material buffer memory, finishes obtaining of existing material;

From Background apparatus, obtain the step of background:

Contain background memory and background buffer memory in the described Background apparatus, described background buffer memory obtains the background picture file from background memory;

The virtual studio device generates the step of virtual studio scene:

Described virtual studio device contains virtual scene producing device, virtual scene storage, virtual scene maker and virtual scene buffer memory; Described virtual scene producing device links to each other with the virtual scene storage, and described virtual scene storage links to each other with the virtual scene maker, and described virtual scene maker links to each other with the virtual scene buffer memory; Described virtual scene producing device is sent into the scene of making in the virtual scene storage, and described virtual scene maker obtains this scene and generates virtual scene from the virtual scene storage, finally sends in the virtual scene buffer memory;

Wherein at first get access to the control corresponding operation in the mode of Direct Touch, and identify control corresponding by the touch screen induction device and operate pairing mode of operation by touch-screen; Touch-screen calls pairing control command in this zone or position and correlation function thereof according to the suffered mode of operation in zone and position of correspondence then, thereby realizes that touch-screen display is to whole control of performing in a radio or TV programme process;

The the four the tunnel: the step of broadcasting signal output: be used for the outputting video signal and the audio signal of output buffers are sent into the television network broadcast by output circuit;

Step and the output buffers of handling with above-mentioned central processing unit and broadcast that step carries out simultaneously be: extraneous signal is recorded, and this step comprises: the step that the step of extraneous signal coding and extraneous signal coded file store;

The step of extraneous signal coding: described video acquisition buffer memory, sound console device are recorded encoder with collection and are linked to each other, and are used to finish the video content and the audio content coding formation extraneous signal coded file of extraneous signal;

9. method according to claim 8 is characterized in that, it is as follows that the mode of the Direct Touch of described touch-screen display is carried out the substep of control operation:

Touch-screen gets access to the control corresponding operation, and identifies control corresponding by the touch screen induction device and operate pairing mode of operation;

Touch-screen calls pairing control command in this zone or position and correlation function thereof according to the suffered mode of operation in zone and position of correspondence, thereby realizes that touch-screen display is to whole control of performing in a radio or TV programme process.

10. method according to claim 8 is characterized in that, the substep that the mode of the Direct Touch of described touch-screen display is switched between each road vision signal is as follows:

The position of identification staff on the touch-screen of touch-screen display, selected to determine which vision signal;

On the display window territory of selected vision signal, add green frame, selected to show this road vision signal;

The slip of identification staff on touch-screen display, prepare to broadcast the district to determine whether that the vision signal that will choose is dragged to, if staff discharges then confirms that the vision signal that will choose is placed on and prepare to broadcast the district prepare broadcasting the district, and this road vision signal switched to prepare to broadcast the district;

Select to switch the type of stunt: be fade-in fade-out, draw picture, picture-in-picture, three-dimensional stunt type;

The stunt type that use is chosen will be prepared to broadcast the video image in district and comprise step by step following with the process that the video image that broadcasts the district switches:

The video image that preparation in the input-buffer is broadcasted the district copies in the output buffers;

After preparation in the input-buffer being broadcasted the video image and the video image stack calculation process of broadcasting the district in the output buffers in district, copy in the output buffers, the stack computing can be to be fade-in fade-out, to draw a kind of in picture, picture-in-picture, the three-dimensional;