CN114302061B - 8K and 4K synchronous mixed manufactured ultra-high definition video rebroadcasting vehicle and rebroadcasting method - Google Patents
8K and 4K synchronous mixed manufactured ultra-high definition video rebroadcasting vehicle and rebroadcasting method Download PDFInfo
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Abstract
The application provides a super-high definition video rebroadcasting vehicle and a rebroadcasting method for 8K and 4K synchronous mixed manufacture, wherein an 8K switching station switches and special effects manufacture 8K input signals received by an 8K optical switch to obtain 8K video programs, and the 8K video programs are output by the 8K optical switch, and the 8K video programs comprise main programs and non-captioned programs; the 8K optical switch sends the received 8K video program to the format conversion device for format conversion so as to output the 8K video program in the SDI format; the 4K switching station is used for switching and trick making the received 4K input signal to obtain the 4K video program. The video rebroadcasting vehicle in the mode can synchronously manufacture two different programs of 8K and 4K, supports the field manufacture of two different activities, has no interference between the activities, and can generate video programs with a plurality of resolutions according to the needs.
Description
Technical Field
The application relates to the technical field of signal processing, in particular to an 8K and 4K synchronous mixed ultra-high definition video rebroadcasting vehicle and a rebroadcasting method.
Background
The current 8K rebroadcasting equipment is very expensive, and there is no 8K rebroadcasting vehicle that can provide large-scale active rebroadcasting. Meanwhile, the number of 4K retransmission devices is also small, and the 4K retransmission needs are vigorous. Thus, there is a need for a relatively economical 8K rebroadcast that can perform both 4K video rebroadcasting and 8K video rebroadcasting.
Disclosure of Invention
The application aims to provide an 8K and 4K synchronous hybrid manufactured ultra-high definition video rebroadcasting vehicle and a rebroadcasting method, so that the rebroadcasting vehicle can provide 4K rebroadcasting and 8K rebroadcasting and can conduct rebroadcasting switching aiming at various application scenes.
In a first aspect, the present application provides an 8K and 4K synchronous hybrid production ultra-high definition video rebroadcasting vehicle, the video rebroadcasting vehicle comprising: an 8K switching station, a 4K switching station, an 8K optical switch and a plurality of format conversion devices; the 8K optical switch is used for transmitting the 8K input signal sent by the 8K signal providing device to the 8K switching station; the 8K switching station is used for switching and trick making on the received 8K input signal to obtain an 8K video program, and the 8K video program is sent to the 8K switching station through an 8K optical switch; the 8K video programs comprise a main program and an unproductive program; the 8K switching station is also used for preselecting a pre-monitoring signal from the 8K input signal; the 8K switching station is also used for sending the main program to the first format conversion device, sending the pre-monitoring signal to the second format conversion device and sending the program without captioning to the third format conversion device; the first format conversion device is used for carrying out signal format conversion on the main program and outputting the main program in the SDI format; the second format conversion device is used for carrying out signal format conversion on the pre-monitoring signal and outputting the pre-monitoring signal in the SDI format; the third format conversion device is used for carrying out signal format conversion on the non-captioned program and outputting the non-captioned program in the SDI format; the 4K switching station is used for receiving the 4K input signal sent by the 4K signal providing device, and switching and trick making are carried out on the received 4K input signal to obtain the 4K video program.
In an alternative embodiment, the 8K signal providing device includes at least one of the following: the system comprises an 8K slow motion server, an 8K online packaging workstation, an 8K caption machine and an 8K camera; the 8K slow motion server is used for providing an 8K slow motion signal; the 8K online packaging workstation is used for providing an 8K online packaging signal; the 8K caption machine is used for providing 8K caption signals; the 8K camera is used for providing an 8K image pickup signal.
In an alternative embodiment, the above-mentioned 8K slow motion signal, 8K online package signal and 8K caption signal are SDI format signals; the 8K camera shooting signal is an IP format signal; the 8K slow motion server is connected with the 8K optical switch through a fourth format conversion device; the 8K online packaging workstation is connected with the 8K optical switch through a fifth format conversion device; the 8K caption machine is connected with the 8K optical switch through a sixth format conversion device; the fourth format conversion device is used for converting the 8K slow motion signal in the SDI format into the 8K slow motion signal in the IP format and then transmitting the 8K slow motion signal to the 8K switching station through the 8K optical switch; the fifth format conversion device is used for converting the 8K online packaging signal in the SDI format into the 8K online packaging signal in the IP format and then transmitting the 8K online packaging signal to the 8K switching station through the 8K optical switch; the sixth format conversion device is configured to convert the 8K caption signal in the SDI format into an 8K caption signal in the IP format, and send the 8K caption signal to the 8K switching station via the 8K optical switch.
In an alternative embodiment, the 4K signal providing device includes at least one of the following: the system comprises a 4K slow motion server, a 4K online packaging workstation, a 4K caption machine and a 4K camera; the 4K slow motion server is used for providing a 4K slow motion signal; the 4K online packaging workstation is used for providing a 4K online packaging signal; the 4K caption machine is used for providing a 4K caption signal; the 4K camera is used for providing a 4K image pickup signal.
In an alternative embodiment, the video rebroadcasting vehicle further includes a first matrix module and a first video distribution amplifier; the first matrix module is respectively connected with the 4K signal providing device, the 4K switching station and the first video distribution amplifier; the 4K switching station is also connected with the first video distribution amplifier; the first video distribution amplifier is for receiving a 4K video program transmitted by the 4K switching station, copying the 4K video programs into multiple paths, and respectively inputting the multiple paths of the video programs into a preset video recorder, a vehicle tail board or a first matrix module; the first matrix module is used for receiving the 4K video program sent by the first video distribution amplifier; the first matrix module is further configured to send the received 4K input signal sent by the 4K signal providing device to the 4K switching station.
In an alternative embodiment, the video rebroadcasting vehicle further includes: an up-converter and a first down-converter connected to the first matrix module; the first matrix module is used for sending the received 4K video program to an up-converter and/or the first down-converter; the up-converter is used for carrying out up-conversion processing on the received 4K video program to obtain an 8K video program; the first down converter is used for up-converting the received 4K video program to obtain a high-definition video signal.
In an alternative embodiment, the video rebroadcasting vehicle further includes: the second video distribution amplifier, the second matrix module, the 8K software encoder and the 8K hardware encoder; the second video distribution amplifier is respectively connected with the first format conversion device, the second matrix module, the 8K software encoder and the 8K hardware encoder; the second video distribution amplifier is used for receiving the main program in the SDI format sent by the first format conversion device, copying the main program in the SDI format into multiple paths, and outputting the multiple paths of the main program to a preset multi-picture monitor, an 8K video recorder, the second matrix module, a tailboard, an 8K software encoder and an 8K hardware encoder respectively; the 8K hardware encoder is used for carrying out hardware encoding on the received main program in the SDI format and outputting the encoded main program to the tail board; the 8K software encoder is used for performing software encoding on the received main program in the SDI format and outputting the encoded main program to the car tail board.
In an alternative embodiment, the second matrix module is further connected to a second down-converter, a third down-converter and a third video distribution amplifier; the second matrix module is used for sending the received main program in the SDI format to the second down converter; the second down-converter is used for performing down-conversion processing on the received main program in the SDI format to obtain a 4K main program, and outputting the 4K main program to the third video distribution amplifier; the third video distribution amplifier is used for copying the 4K main program into multiple paths and respectively transmitting the multiple paths to the second matrix module, the tail board, the 4K video recorder or the camera for returning; the second matrix module is further configured to output the 4K main program to a third down-converter, so that the third down-converter down-converts the 4K main program to a high-definition program.
In an alternative embodiment, the rebroadcasting vehicle further comprises a fourth video distribution amplifier connected with the second format conversion device, a third matrix module, an 8K software encoder and an 8K hardware encoder connected with the fourth video distribution amplifier, and a fourth down-converter connected with the third matrix module; the fourth video distribution amplifier is used for receiving the pre-monitoring signal in the SDI format sent by the second format conversion device, copying the pre-monitoring signal in the SDI format into multiple paths, and outputting the multiple paths of pre-monitoring signals to a preset multi-picture monitor, a third matrix module, a vehicle tail board, an 8K software encoder and an 8K hardware encoder respectively; the third matrix module is further configured to send the received pre-monitor signal in the SDI format to the fourth down-converter, so that the fourth down-converter performs down-conversion processing on the pre-monitor signal in the SDI format, and outputs a 4K pre-monitor signal.
In an alternative embodiment, the rebroadcasting vehicle further comprises a fifth video distribution amplifier connected to the third format conversion device; the fifth video distribution amplifier is configured to receive the non-captioned program in the SDI format sent by the third format conversion device, copy the non-captioned program in the SDI format into multiple paths, and output the multiple paths of non-captioned programs to a preset multi-picture monitor or a vehicle tail board respectively.
In a second aspect, the application provides an ultra-high definition video rebroadcasting method for 8K and 4K synchronous mixed manufacture, which is applied to the ultra-high definition video rebroadcasting vehicle for 8K and 4K synchronous mixed manufacture; the method comprises the following steps: transmitting the 8K input signal transmitted by the 8K signal providing device to an 8K switching station through an 8K optical switch; switching and trick making are carried out on the received 8K input signal through an 8K switching station to obtain an 8K video program, and the 8K video program is sent to the 8K switching station through an 8K optical switch; pre-selecting a pre-monitoring signal from the 8K input signal through an 8K switching station; the 8K video programs comprise a main program and an unproductive program; the method comprises the steps of conveying a main program to a first format conversion device through an 8K optical switch, sending a pre-monitoring signal to a second format conversion device, and sending an un-captioned program to a third format conversion device, so that the first format conversion device performs signal format conversion on the main program and outputs the main program in an SDI format; the second format conversion device performs signal format conversion on the pre-monitoring signal and outputs the pre-monitoring signal in the SDI format; the third format conversion device performs signal format conversion on the non-captioned program and outputs the non-captioned program in the SDI format; and receiving the 4K input signal sent by the 4K signal providing device through the 4K switching station, and switching and trick making the received 4K input signal to obtain the 4K video program.
The embodiment of the application has the following beneficial effects:
the application provides an 8K and 4K synchronous mixed ultra-high definition video rebroadcasting vehicle and a rebroadcasting method, firstly an 8K optical switch receives an 8K input signal sent by an 8K signal providing device and sends the received 8K input signal to an 8K switching station; the 8K switching station switches and makes special effects on the received 8K input signal to obtain an 8K video program, and the 8K video program is sent to the 8K switching station through an 8K optical switch; the 8K video programs comprise a main program and an unproductive program; the 8K switching station is also used for preselecting a pre-monitoring signal from the 8K input signal; the 8K switching station is also used for transmitting the main program to the first format conversion device, the pre-monitoring signal to the second format conversion device and the non-subtitle program to the third format conversion device through the 8K optical switch; the first format conversion device performs signal format conversion on the main program and outputs the main program in the SDI format; the second format conversion device performs signal format conversion on the pre-monitoring signal and outputs the pre-monitoring signal in the SDI format; the third format conversion device performs signal format conversion on the non-captioned program and outputs the non-captioned program in the SDI format; the 4K switching station receives the 4K input signal sent by the 4K signal providing device, and performs switching and special effects on the received 4K input signal to obtain a 4K video program. The video rebroadcasting vehicle in the mode can synchronously manufacture two different programs of 8K and 4K, supports the field manufacture of two different activities, has no interference between the activities, and can generate video programs with a plurality of resolutions according to the needs.
Additional features and advantages of the application will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the application.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an ultra-high definition video rebroadcasting vehicle manufactured by 8K and 4K synchronous mixing according to an embodiment of the present application;
fig. 2 is a schematic diagram of a 4K system on a video rebroadcasting vehicle according to an embodiment of the present application;
fig. 3 is a schematic diagram of an 8K system on a video rebroadcasting vehicle according to an embodiment of the present application;
fig. 4 is a flowchart of an ultra-high definition video rebroadcasting vehicle manufactured by 8K and 4K synchronous mixing provided by the embodiment of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
At present, 8K rebroadcasting equipment is very expensive, 8K rebroadcasting vehicles which can provide large-scale movable rebroadcasting are not available, meanwhile, the number of 4K rebroadcasting equipment is small, 4K rebroadcasting requirements are vigorous, 8K rebroadcasting vehicles which are economical are needed, and the technical scheme of 4K rebroadcasting and 8K rebroadcasting can be simultaneously executed.
Based on the problems, the embodiment of the application provides an 8K and 4K synchronous hybrid manufactured ultra-high definition video rebroadcasting vehicle and a rebroadcasting method. The technique can be used in the rebroadcast scene of 8K video signals and 4K video signals.
In order to facilitate understanding of the embodiment of the application, firstly, an ultra-high definition video rebroadcasting vehicle manufactured by 8K and 4K synchronous mixing disclosed by the embodiment of the application is described in detail; as shown in fig. 1, the video retransmission vehicle includes: an 8K switching station 10, a 4K switching station 11, an 8K optical switch 12, and a plurality of format conversion devices; wherein the plurality of format conversion means comprises at least a first format conversion means 13, a second format conversion means 14 and a third format conversion means 15. The 8K optical switch 12 is connected to the 8K switching station 10, the second format conversion device 14, and the third format conversion device 15, respectively.
The 8K optical switch 12 is configured to transmit an 8K input signal sent by the 8K signal providing device to the 8K switching station 10; the 8K switching station 10 is configured to switch and perform trick-play on the received 8K input signal to obtain an 8K video program, and send the 8K video program to the 8K switching station 12 via an 8K optical switch; wherein the 8K video program includes a main program and an un-subtitled program. The 8K switching station is also used for preselecting a pre-monitoring signal from the 8K input signal; the 8K switching station 10 is further configured to send the main program to the first format conversion device 13, the pre-monitor signal to the second format conversion device 14, and the non-captioned program to the third format conversion device 15 through the 8K optical switch 12.
The first format conversion device 13 is configured to perform signal format conversion on the main program, and output the main program in SDI format; the second format conversion device 14 is configured to perform signal format conversion on the pre-monitor signal, and output the pre-monitor signal in SDI format; the third format conversion device 15 is configured to perform signal format conversion on the non-subtitled program, and output the non-subtitled program in SDI format.
The 8K optical switch may be a fiber optical switch, which is generally a high-speed network transmission relay device, and uses a fiber optic cable as a transmission medium. The optical fiber transmission has the advantages of high speed and strong anti-interference capability. There are two main types of fabric switches, one for connecting to a stored FC switch. The other is an ethernet switch, and the ports are fiber optic interfaces, which are the same as the appearance of a normal electrical interface, but of a different type. The above-mentioned 8K signal providing means may include at least one of an 8K slow motion server, an 8K on-line packing workstation, an 8K subtitle machine, and an 8K video camera, and the 8K signal providing means is mainly for providing an 8K input signal to an 8K optical switch.
In specific implementation, the 8K video program is a signal in IP format, that is, the main program and the non-captioned program are both signals in IP format; thus, it is necessary to convert an 8K video program in the IP format into an 8K video program in the SDI format by the format conversion device. Specifically, the format conversion apparatus can convert not only the signal of the IP format into the signal of the SDI format but also the signal of the SDI format into the signal of the IP format. Specifically, the 8K signal in the SDI format is a set of 4-way 12G 4K signals in the SDI format.
The 4K switching station 11 is configured to receive a 4K input signal sent by the 4K signal providing device, and perform switching and trick making on the received 4K input signal to obtain a 4K video program.
In a specific implementation, the 8K switching station and the 4K switching station are all devices for connecting selected videos through cutting, overlapping pictures and dividing pictures, and further creating and embedding other special effects to complete program production; only 8K signals are processed by the 8K switching station, and 4K signals are processed by the 4K switching station. Meanwhile, the main function of the switching platform is to provide convenience for timely editing, select various video materials and connect the video materials in turn through transition skills.
The 8K and 4K synchronous hybrid manufactured ultra-high definition video rebroadcasting vehicle provided by the embodiment of the application can synchronously manufacture 8K video programs and 4K video programs, supports on-site manufacture of two different activities, and has no mutual interference between the activities.
The embodiment of the application also provides another 8K and 4K synchronous mixed ultra-high definition video rebroadcasting vehicle, which is realized on the basis of the embodiment.
Fig. 2 is a schematic diagram of a 4K system on a video rebroadcasting vehicle according to an embodiment of the present application, where the 4K system includes a 4K switching station 11, a first matrix module 20 and a first video distribution amplifier 21; the first matrix module 20 is connected to the 4K signal providing device, the 4K switching station 11 and the first video distribution amplifier 21, respectively; the 4K switching station 11 is also connected to the first video distribution amplifier 21; the first video distribution amplifier 21 is configured to receive the 4K video program sent by the 4K switching station 11, copy the 4K video program into multiple paths, and input the multiple paths to a preset video recorder, a vehicle tail board or the first matrix module 20 respectively; the first matrix module 20 is configured to receive the 4K video program sent by the first video distribution amplifier 21; the first matrix module 20 is further configured to send the received 4K input signal sent by the 4K signal providing device to the 4K switching station 11.
In a specific implementation, the 4K signal providing device includes at least one of the following: the system comprises a 4K slow motion server, a 4K online packaging workstation, a 4K caption machine and a 4K camera; the 4K slow motion server is used for providing a 4K slow motion signal; the 4K online packaging workstation is used for providing a 4K online packaging signal; the 4K caption machine is used for providing a 4K caption signal; the 4K camera is used for providing a 4K image pickup signal. The subtitle generator is used for adding subtitles to the video; the online packaging workstation is used for online packaging of the video, and comprises a plurality of special effects; the slow motion server is used for performing slow motion processing on the video.
The video distribution amplifier is generally a device for equally distributing a video signal source into multiple video signals. The working principle is to realize the functions of one-path video input and multiple-path video output, so that the video output can be observed under the condition of no distortion or no loss of definition. And the video distribution amplifier has a video signal amplifying function in addition to providing multiple independent video outputs.
Further, the video rebroadcasting vehicle further comprises: an up-converter 22 and a first down-converter 23 connected to the first matrix module 20; the first matrix module 20 is configured to send the received 4K video program to the up-converter 22 and/or the first down-converter 23; the up-converter 22 is configured to up-convert the received 4K video program to obtain an 8K video program; the first down-converter 23 is configured to perform up-conversion processing on the received 4K video program to obtain a high-definition video signal.
In practical application, the 4K input signals in the SDI format provided by the above-mentioned 4K slow motion server, 4K online packaging workstation, 4K subtitle generator and multi-channel 4K video camera may be sent to the 4K switching station 11 through the first matrix module 20, so that the 4K switching station switches and makes special effects on the received 4K input signals, completes the making of the 4K video program, and sends the made 4K video program signals to the first video distribution amplifier 21 through the first matrix module 20 or directly. The first video distribution amplifier 21 transmits the 4K video program to the first down-converter 23 and the up-converter 22 through the first matrix module 20, or transmits only the first down-converter 23 to obtain HD (High Definition) video (equivalent to the above-mentioned High Definition video signal), or transmits only the up-converter 22 to obtain the 8K video program.
Specifically, the up-converter may also output the obtained 8K video program to the tailboard. The first down-converter 23 may be further connected to a video distribution amplifier, and the first down-converter 23 may send the obtained HD video to the video distribution amplifier, so that the video distribution amplifier replicates multiple paths, and distributes and sends the HD video to the tail board and the camera for return.
The 4K system on the video rebroadcasting vehicle can obtain not only 4K video programs, but also 8K video programs, and also high-definition videos, so that the rebroadcasting vehicle can play video programs with different resolutions.
Fig. 3 is a schematic diagram of an 8K system on a video rebroadcasting vehicle according to an embodiment of the present application, where the 8K system includes an 8K switching station 10, an 8K optical switch 12, a first format conversion device 13, a second format conversion device 14, and a third format conversion device 15. The 8K optical switch 12 is configured to send an 8K input signal sent by the 8K signal providing device to the 8K switching station 10, so that the 8K switching station 10 switches and makes a trick on the received 8K input signal, and send the obtained 8K video program to the plurality of format conversion devices via the 8K optical switch 12; the 8K video program includes a main program in IP format (equivalent to PGM in fig. 3) and an off-caption program in IP format (equivalent to CLEAN in fig. 3). PVW in fig. 3 represents a pre-monitor signal.
The 8K switching station 10 transmits the main program in the IP format to the first format conversion device 13, the pre-monitor signal in the IP format to the second format conversion device 14, and the non-subtitle program in the IP format to the third format conversion device 15 through the 8K optical switch 12. The first format conversion device 13 converts the main program in the IP format into the main program in the SDI format and outputs the main program; the second format conversion device 14 converts the IP-format pre-monitoring signal into the SDI-format pre-monitoring signal and outputs the signal; the third format conversion device 15 converts the non-subtitle program in the SDI format into a non-subtitle program in the SDI format and outputs the converted non-subtitle program.
In a specific implementation, the 8K signal providing device includes at least one of the following: the system comprises an 8K slow motion server, an 8K online packaging workstation, an 8K caption machine and at least one 8K camera; the 8K slow motion server is used for providing an 8K slow motion signal; the 8K online packaging workstation is used for providing an 8K online packaging signal; the 8K caption machine is used for providing 8K caption signals; the 8K camera is used for providing an 8K image pickup signal.
The 8K slow motion signal, the 8K online packaging signal and the 8K caption signal are signals in an SDI format; the 8K camera shooting signal is an IP format signal; therefore, the 8K slow-motion server is connected to the 8K optical switch 12 through the fourth format conversion means; the 8K online packaging workstation is connected with the 8K optical switch 12 through a fifth format conversion device; the 8K caption machine is connected with the 8K optical switch 12 through a sixth format conversion device; the fourth format conversion device is configured to convert the 8K slow motion signal in the SDI format into an 8K slow motion signal in the IP format, and send the 8K slow motion signal to the 8K switching station 12 via the 8K optical switch; the fifth format conversion device is configured to convert the 8K online package signal in the SDI format into an 8K online package signal in the IP format, and send the 8K online package signal to the 8K switching station 12 via the 8K optical switch; the sixth format conversion device is configured to convert the 8K caption signal in the SDI format into the 8K caption signal in the IP format, and then send the 8K caption signal to the 8K switching station 12 via the 8K optical switch.
The video relay cart of fig. 3 further comprises: a second video distribution amplifier 30, a second matrix module 31, an 8K software encoder 32, and an 8K hardware encoder 33; the second video distribution amplifier 30 is connected to the first format conversion device 13, the second matrix module 31, the 8K software encoder 32 and the 8K hardware encoder 33, respectively. The second video distribution amplifier 30 is configured to receive the main program in the SDI format sent by the first format conversion device 13, copy the main program in the SDI format into multiple paths, and output the multiple paths to a preset multi-picture monitor, an 8K video recorder, a second matrix module 31, a tailboard, an 8K software encoder 32, and an 8K hardware encoder 33; the 8K hardware encoder 32 is configured to perform hardware encoding on the received main program in SDI format, and output the encoded main program to the tailboard; the 8K software encoder 33 is configured to perform software encoding on the received main program in SDI format, and output the encoded main program to the tail board.
Further, the second matrix module 31 is further connected to a second down-converter 34, a third down-converter 35 and a third video distribution amplifier 36; the second matrix module 31 is configured to send the received main program in SDI format to the second down-converter 34; the second down-converter 34 is configured to perform down-conversion processing on the received main program in SDI format to obtain a 4K main program, and output the 4K main program to the third video distribution amplifier 36; the third video distribution amplifier 36 is configured to copy the 4K main program into multiple paths, and send the multiple paths to the second matrix module 31, the tail board, the 4K video recorder or the camera for returning; the second matrix module 31 is further configured to output the 4K main program to the third down-converter 35, so that the third down-converter 35 down-converts the 4K main program into a high definition program. The high definition program may be transmitted to a tail board or video recorder via a video distribution amplifier.
The first format conversion means 13, which receives the main program in the IP format, transmits the converted main program in the SDI format to the second video distribution amplifier 30. The second video distribution amplifier 30 copies the main program in the SDI format into multiple paths and outputs the multiple paths to a multi-picture monitor, an 8K video recorder (VTR for short), a second matrix module 31, a tailboard input-output interface, an 8K software encoder 32, and an 8K hardware encoder 33, respectively. The second matrix module 31 transmits the main signal in the SDI format to the second down-converter 34, and the second down-converter 34 down-converts the main program in the SDI format (the main program in the SDI format is an 8K signal) into a 4K main program (the 4K main program is a 4K signal), and the 4K main program is copied into multiple channels through the third video distribution amplifier 36 and then output to other needed places, such as a tailboard input/output interface, the second matrix module 31, a camera foldback, a 4K video recorder, and the like. The down-converted 4K main program may be down-converted again to generate an HD high definition video signal (equivalent to the high definition link described above). In summary, the 8K rebroadcast system can output the same content 8K main program (corresponding to the 8K video signal), 4K main program (corresponding to the 4K video signal), and HD video signal.
In particular, the video rebroadcasting vehicle further comprises a fourth video distribution amplifier 37 connected to the second format conversion device 14, and a third matrix module 38, an 8K software encoder 32 and an 8K hardware encoder 33 connected to the fourth video distribution amplifier 37, and a fourth down-converter 39 connected to the third matrix module 38; the fourth video distribution amplifier 37 is configured to receive the pre-monitor signal in the SDI format sent by the second format conversion device 14, copy the pre-monitor signal in the SDI format into multiple paths, and output the multiple paths to the preset multi-picture monitor, the third matrix module 38, the tail board, the 8K software encoder 32 and the 8K hardware encoder 33, respectively; the third matrix module 38 is further configured to send the received pre-monitor signal in the SDI format to the fourth down-converter 39, so that the fourth down-converter 39 performs down-conversion processing on the pre-monitor signal in the SDI format, and outputs a 4K pre-monitor signal. The 4K pre-monitor signal may be sent to the tailgate, the third matrix module 38, the camera return, or the 4K video recorder via a video distribution amplifier.
The 8K hardware encoder 32 may perform hardware encoding on the received pre-monitor signal in the SDI format, and output the encoded pre-monitor signal to the tail board; the 8K software encoder 33 may perform software encoding on the received pre-monitor signal in the SDI format, and output the encoded pre-monitor signal to the tailgate.
Further, the video rebroadcasting vehicle further comprises a fifth video distribution amplifier 40 connected to the third format conversion device 15; the fifth video distribution amplifier 40 is configured to receive the non-captioned program in the SDI format sent by the third format conversion device 15, copy the non-captioned program in the SDI format into multiple paths, and output the multiple paths to a preset multi-picture monitor or a tailboard, respectively.
The multi-picture monitor can monitor the main program, the pre-monitor signal and the non-captioned program. A taly system for source name following may also be used when monitoring, with the sources of the picture playback being displayed on a multi-picture monitor for the operator to explicitly play.
The 8K and 4K synchronous hybrid manufactured ultra-high definition video rebroadcasting vehicle can generate videos of different programs in multiple versions and has strong manufacturing capability. Meanwhile, the method can perform slow motion processing, online packaging processing or subtitle adding and other operations on the video.
Corresponding to the embodiment of the 8K and 4K synchronous mixed ultra-high definition video rebroadcasting vehicle, the application also provides an 8K and 4K synchronous mixed ultra-high definition video rebroadcasting method, which is applied to the 8K and 4K synchronous mixed ultra-high definition video rebroadcasting vehicle; as shown in fig. 4, the method comprises the following specific steps:
step S402, the 8K input signal sent by the 8K signal providing device is sent to the 8K switching station through the 8K optical switch.
Step S404, switching and special effects making are carried out on the received 8K input signal through an 8K switching station, so as to obtain an 8K video program, and the 8K video program is sent to the 8K switching station through an 8K optical switch; pre-selecting a pre-monitoring signal from 8K input signals through an 8K switching station; wherein the 8K video program includes a main program and an un-subtitled program.
Step S406, the main program is transmitted to the first format conversion device through the 8K optical switch, the pre-monitoring signal is transmitted to the second format conversion device, the program without subtitle is transmitted to the third format conversion device, so that the first format conversion device carries out signal format conversion on the main program, and the main program in SDI format is output; the second format conversion device performs signal format conversion on the pre-monitoring signal and outputs the pre-monitoring signal in the SDI format; the third format conversion device performs signal format conversion on the non-captioned program and outputs the non-captioned program in the SDI format.
In specific implementation, the rebroadcasting method can also receive the 4K input signal sent by the 4K signal providing device through the 4K switching station, and switch and make special effects on the received 4K input signal to obtain the 4K video program.
The method for rebroadcasting the ultra-high definition video produced by 8K and 4K synchronous mixing provided by the embodiment of the application has the same implementation principle and the same produced technical effects as the embodiment of the ultra-high definition video rebroadcasting vehicle produced by 8K and 4K synchronous mixing, and for the sake of brief description, the corresponding contents in the embodiment of the video rebroadcasting vehicle can be referred to where the embodiment of the method is not mentioned.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (11)
1. An 8K and 4K synchronous hybrid manufacturing's super high definition video rebroadcasting car, its characterized in that, the video rebroadcasting car includes: an 8K switching station, a 4K switching station, an 8K optical switch and a plurality of format conversion devices;
the 8K optical switch is used for transmitting an 8K input signal sent by the 8K signal providing device to the 8K switching station;
the 8K switching station is used for switching and performing special effects on the received 8K input signals to obtain 8K video programs, and transmitting the 8K video programs to a plurality of format conversion devices through the 8K optical switch; the 8K video programs comprise a main program and an unproductive program; the 8K switching station is also used for preselecting a pre-monitoring signal from the 8K input signal;
the 8K switching station is further configured to send the main program to a first format conversion device, send the pre-monitor signal to a second format conversion device, and send the non-captioned program to a third format conversion device through the 8K optical switch;
the first format conversion device is used for carrying out signal format conversion on the main program and outputting the main program in the SDI format; the second format conversion device is used for performing signal format conversion on the pre-monitoring signal and outputting a pre-monitoring signal in an SDI format; the third format conversion device is used for performing signal format conversion on the non-captioned program and outputting the non-captioned program in the SDI format;
the 4K switching station is used for receiving the 4K input signal sent by the 4K signal providing device, and switching and trick making are carried out on the received 4K input signal to obtain the 4K video program.
2. The video retransmission vehicle according to claim 1, characterized in that the 8K signal providing means comprises at least one of the following: the system comprises an 8K slow motion server, an 8K online packaging workstation, an 8K caption machine and an 8K camera;
the 8K slow motion server is used for providing an 8K slow motion signal; the 8K online packaging workstation is used for providing an 8K online packaging signal; the 8K caption machine is used for providing 8K caption signals; the 8K camera is used for providing 8K shooting signals.
3. The rebroadster of claim 2, wherein the 8K slow motion signal, the 8K online packaging signal, and the 8K caption signal are SDI formatted signals; the 8K camera shooting signal is an IP format signal;
the 8K slow motion server is connected with the 8K optical switch through a fourth format conversion device; the 8K online packaging workstation is connected with the 8K optical switch through a fifth format conversion device; the 8K caption machine is connected with the 8K optical switch through a sixth format conversion device;
the fourth format conversion device is configured to convert the 8K slow motion signal in the SDI format into an 8K slow motion signal in the IP format, and send the 8K slow motion signal to the 8K switching station via the 8K optical switch;
the fifth format conversion device is configured to convert an 8K online package signal in an SDI format into an 8K online package signal in an IP format, and send the 8K online package signal to the 8K switching station via the 8K optical switch;
the sixth format conversion device is configured to convert the 8K caption signal in the SDI format into an 8K caption signal in the IP format, and send the 8K caption signal to the 8K switching station via the 8K optical switch.
4. The video retransmission vehicle according to claim 1, characterized in that the 4K signal providing means comprises at least one of the following: the system comprises a 4K slow motion server, a 4K online packaging workstation, a 4K caption machine and a 4K camera;
the 4K slow motion server is used for providing a 4K slow motion signal; the 4K online packaging workstation is used for providing a 4K online packaging signal; the 4K caption machine is used for providing 4K caption signals; the 4K camera is used for providing 4K image pickup signals.
5. The video retransmission vehicle according to claim 1 or 4, further comprising a first matrix module and a first video distribution amplifier; the first matrix module is respectively connected with the 4K signal providing device, the 4K switching station and the first video distribution amplifier; the 4K switching station is also connected with the first video distribution amplifier;
the first video distribution amplifier is configured to receive a 4K video program sent by the 4K switching station, copying the 4K video programs into multiple paths, and respectively inputting the multiple paths of the video programs into a preset video recorder, a vehicle tail board or the first matrix module;
the first matrix module is used for receiving the 4K video program sent by the first video distribution amplifier; the first matrix module is further configured to send the received 4K input signal sent by the 4K signal providing device to the 4K switching station.
6. The video relay cart of claim 5, further comprising: an up-converter and a first down-converter connected to the first matrix module;
the first matrix module is used for sending the received 4K video program to the up-converter and/or the first down-converter;
the up-converter is used for up-converting the received 4K video program to obtain an 8K video program;
the first down converter is used for up-converting the received 4K video program to obtain a high-definition video signal.
7. The video retransmission vehicle according to claim 1, further comprising: the second video distribution amplifier, the second matrix module, the 8K software encoder and the 8K hardware encoder; the second video distribution amplifier is respectively connected with the first format conversion device, the second matrix module, the 8K software encoder and the 8K hardware encoder;
the second video distribution amplifier is configured to receive the main program in the SDI format sent by the first format conversion device, copy the main program in the SDI format into multiple paths, and output the multiple paths of the main program to a preset multi-picture monitor, an 8K video recorder, the second matrix module, a tailboard, the 8K software encoder and the 8K hardware encoder;
the 8K hardware encoder is used for carrying out hardware encoding on the received main program in the SDI format and outputting the encoded main program to a tailboard;
the 8K software encoder is used for performing software encoding on the received main program in the SDI format and outputting the encoded main program to a tailboard.
8. The video retransmission vehicle according to claim 7, characterized in that the second matrix module is further connected to a second down-converter, a third down-converter connection and a third video distribution amplifier;
the second matrix module is configured to send the received main program in SDI format to the second down-converter;
the second down-converter is used for performing down-conversion processing on the received main program in the SDI format to obtain a 4K main program, and outputting the 4K main program to the third video distribution amplifier;
the third video distribution amplifier is used for copying the 4K main program into multiple paths and respectively sending the multiple paths to the second matrix module, the tail board, the 4K video recorder or the camera for returning;
the second matrix module is further configured to output the 4K main program to the third down-converter, so that the third down-converter down-converts the 4K main program into a high-definition program.
9. The video retransmission vehicle according to claim 1, further comprising a fourth video distribution amplifier connected to the second format conversion device, a third matrix module, an 8K software encoder and an 8K hardware encoder connected to the fourth video distribution amplifier, and a fourth down-converter connected to the third matrix module;
the fourth video distribution amplifier is configured to receive the pre-monitor signal in the SDI format sent by the second format conversion device, copy the pre-monitor signal in the SDI format into multiple paths, and output the multiple paths of pre-monitor signals to a preset multi-picture monitor, the third matrix module, the tail board, the 8K software encoder and the 8K hardware encoder;
the third matrix module is further configured to send the received pre-monitor signal in the SDI format to the fourth down-converter, so that the fourth down-converter performs down-conversion processing on the pre-monitor signal in the SDI format, and outputs a 4K pre-monitor signal.
10. The video retransmission vehicle according to claim 1, further comprising a fifth video distribution amplifier connected to the third format conversion device;
the fifth video distribution amplifier is configured to receive the non-captioned program in the SDI format sent by the third format conversion device, copy the non-captioned program in the SDI format into multiple paths, and output the multiple paths of non-captioned programs to a preset multi-picture monitor or a vehicle tail board respectively.
11. An ultra-high definition video rebroadcasting method for 8K and 4K synchronous mixed production, which is characterized in that the method is applied to the ultra-high definition video rebroadcasting vehicle for 8K and 4K synchronous mixed production according to any one of claims 1-10; the method comprises the following steps:
transmitting the 8K input signal transmitted by the 8K signal providing device to an 8K switching station through an 8K optical switch;
switching and trick making are carried out on the received 8K input signal through the 8K switching station to obtain an 8K video program, and the 8K video program is sent to the 8K switching station through the 8K optical switch; pre-selecting a pre-monitoring signal from the 8K input signal through the 8K switching station; the 8K video programs comprise a main program and an unproductive program;
the main program is conveyed to a first format conversion device through the 8K optical switch, the pre-monitoring signal is conveyed to a second format conversion device, the non-subtitle program is sent to a third format conversion device, so that the first format conversion device performs signal format conversion on the main program, and the main program in the SDI format is output; the second format conversion device performs signal format conversion on the pre-monitoring signal and outputs a pre-monitoring signal in an SDI format; the third format conversion device performs signal format conversion on the non-captioned program and outputs the non-captioned program in the SDI format;
and receiving a 4K input signal sent by a 4K signal providing device through a 4K switching station, and switching and performing special effects on the received 4K input signal to obtain a 4K video program.
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