CN113596346A - Video processing method and video processing device - Google Patents

Video processing method and video processing device Download PDF

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Publication number
CN113596346A
CN113596346A CN202010364915.6A CN202010364915A CN113596346A CN 113596346 A CN113596346 A CN 113596346A CN 202010364915 A CN202010364915 A CN 202010364915A CN 113596346 A CN113596346 A CN 113596346A
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video
module
group
superposition
modules
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CN113596346B (en
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赵士浩
李宏宏
周晶晶
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Xian Novastar Electronic Technology Co Ltd
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Xian Novastar Electronic Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265—Mixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The embodiment of the invention discloses a video processing method and video processing equipment, wherein the video processing method comprises the following steps: the first group of zooming modules zoom the first part of first video sources to obtain zoomed first part of first video sources; the first superposition module carries out superposition processing on the zoomed first part of the first video source to obtain a first superposition processing result and outputs and displays the first superposition processing result from the first group of data interfaces; the second group of zooming modules zoom the second part of the first video sources to obtain zoomed second part of the first video sources; the second superposition module carries out superposition processing on the zoomed second part of the first video source to obtain a second superposition processing result, and the second superposition processing result is output and displayed from the pre-monitoring interface; and the third group of zooming modules zoom any one path of first video source and output and display the first video source from the second group of data interfaces. The invention can avoid the problem of large resource waste in the existing video processing equipment and reasonably utilize the internal residual resources.

Description

Video processing method and video processing device
Technical Field
The present invention relates to the field of video processing technologies, and in particular, to a video processing method and a video processing device.
Background
With the rapid development of the video processing industry, more and more video processing devices are in use, and the subdivision of the application occasions of the video processing devices is more definite. Although the existing video processing equipment is more flexible and diversified in use, the inside of the video processing equipment has large resource waste.
Disclosure of Invention
Therefore, in order to overcome the prior art, the invention provides a video processing method and video processing equipment, which can avoid the problem of large resource waste in the existing video processing equipment and reasonably utilize the internal residual resources.
In a first aspect, an embodiment of the present invention discloses a video processing method, which is applied to a video processing device, where the video processing device includes a first group of scaling modules, a second group of scaling modules, a third group of scaling modules, a first overlay module, and a second overlay module, the first group of scaling modules is connected to the first overlay module, and the second group of scaling modules and the third group of scaling modules are connected to the second overlay module; the video processing method comprises the following steps: in response to the current operating mode being the first operating mode: receiving a plurality of input first video sources; the first group of zooming modules zoom a first part of first video sources in the plurality of first video sources to obtain a zoomed first part of first video sources; the first superposition module carries out superposition processing on the zoomed first part of the first video source to obtain a first superposition processing result, and the first superposition processing result is used as an on-broadcasting picture and is output to a first display screen through a first group of data interfaces to be displayed; the second group of zooming modules zoom a second part of first video sources in the plurality of first video sources to obtain a zoomed second part of first video sources; the second superposition module carries out superposition processing on the zoomed second part of the first video source to obtain a second superposition processing result, and the second superposition processing result is used as a pre-monitoring picture and is output to a second display screen through a pre-monitoring interface to be displayed; and responding to an auxiliary display instruction, the third group of zooming modules zoom any one path of first video source in the plurality of first video sources to obtain a zoomed first video source, and the zoomed first video source is used as an auxiliary display picture and is output to a third display screen through a second group of data interfaces for picture display.
The conventional video processing device has a large resource waste, for example, the conventional two-in-one video processing device includes a switching station mode and a splicer mode, in the splicer mode, all the zoom processing modules therein can perform zoom processing on video sources and output spliced pictures through respective corresponding data interfaces, in the switching station mode, only part of the zoom processing modules therein operate, and there are idle resources, which causes a waste of resources, and in the switching station mode, auxiliary display functions such as a prompter are not supported. The video processing device disclosed by the embodiment of the invention utilizes the first group of zooming modules and the first superposition modules to process the first part of video sources in the plurality of first video sources to obtain a broadcasting picture which is output to the first display screen for display through the first group of data interfaces, utilizes the second group of zooming modules and the second superposition modules to process the second part of video sources in the plurality of first video sources to obtain a pre-monitoring picture which is output to the second display screen through the pre-monitoring interface for display, utilizes the third group of zooming modules to zoom any one path of first video sources in the plurality of first video sources and then output and display through the second group of data interfaces under the first working mode, avoids the problem of large resource waste in the existing video processing device, improves the resource utilization rate of the video processing device, reasonably utilizes idle resources under the first working mode to realize the auxiliary display function, display information under a switching platform mode is enriched, two display modes of pre-monitoring picture display and auxiliary picture display can be realized, and customer requirements are met.
In an embodiment of the present invention, the video processing method further includes: in response to the current operating mode being the second operating mode: receiving a plurality of input second video sources; the first group of zooming modules zoom a first part of second video sources in the plurality of second video sources to obtain a zoomed first part of second video sources; the first superposition module carries out superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and the third superposition processing result is output to the first display screen through the first group of data interfaces to be displayed; the second group of zooming modules and the third group of zooming modules zoom a second part of second video sources in the plurality of second video sources to obtain a second part of second video sources after zooming; and the second superposition module carries out superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and the fourth superposition processing result is output to the first display screen through the second group of data interfaces so as to be spliced and displayed with the third superposition processing result.
In one embodiment of the present invention, further comprising: in response to the current operating mode being the second operating mode: receiving a plurality of input second video sources; the first group of zooming modules zoom a first part of second video sources in the plurality of second video sources to obtain a zoomed first part of second video sources; the first superposition module carries out superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and the third superposition processing result is output to the first display screen through the first group of data interfaces to be displayed; the second group of zooming modules zoom a second part of second video sources in the plurality of second video sources to obtain zoomed second part of second video sources; the second superposition module carries out superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and the fourth superposition processing result is output to the first display screen through the second group of data interfaces to be spliced and displayed with the third superposition processing result; responding to a video source switching instruction, and determining an initial video source and a target video source corresponding to a to-be-switched zooming module in the second group of zooming modules; selecting the target video source from the plurality of second video sources by the third group of zooming modules to perform zooming processing to obtain a zoomed target video source; and the second superposition module covers the zoomed target video source with the initial video source corresponding to the zoom module to be switched, gradually reduces the transparency of the zoomed target video source, and switches the initial video source corresponding to the zoom module to be switched into the target video source.
In an embodiment of the invention, the first group of scaling modules includes a plurality of first scaling sub-modules, the second group of scaling modules includes a plurality of second scaling sub-modules, the third group of scaling modules includes a third scaling sub-module, the first group of data interfaces includes a plurality of first data interfaces, and the second group of data interfaces includes a plurality of second data interfaces.
In a second aspect, an embodiment of the present invention discloses a video processing apparatus, including: a first programmable logic device comprising: a first set of scaling modules; the first superposition module is connected with the first group of zooming modules; the first group of data interfaces are connected with the first superposition module of the first programmable logic device; a second programmable logic device comprising: a second set of scaling modules; the second superposition module is connected with the second group of zooming modules; the third group of zooming modules are connected with the second superposition module; a second set of data interfaces connecting the second overlay module and the third set of scaling modules of the second programmable logic device; the pre-monitoring interface is connected with the second superposition module of the second programmable logic device; wherein the video processing device is configured to perform any one of the video processing methods as described above.
In a third aspect, an embodiment of the present invention discloses a video processing method, which is applied to a video processing device, where the video processing device includes: the system comprises a first group of zooming modules, a second group of zooming modules, a first superposition module and a second superposition module, wherein the first group of zooming modules are connected with the first superposition module, and the second group of zooming modules are connected with the second superposition module; the video processing method comprises the following steps: receiving a plurality of first video sources input by a backplane; the first group of zooming modules zoom the plurality of first video sources to obtain a plurality of zoomed first video sources; the first superposition module superposes the zoomed first video sources to obtain a pre-monitoring picture, and the pre-monitoring picture is output to a first display screen through a first group of data interfaces to be displayed; receiving a plurality of second video sources input by the backplane in response to an auxiliary display instruction; the second group of zooming modules zoom the plurality of second video sources to obtain a plurality of zoomed second video sources; and the second superposition module superposes the zoomed second video sources to obtain an auxiliary display picture, and outputs the auxiliary display picture to a second display screen via a second group of data interfaces for picture display.
The existing video processing device has a large resource waste, for example, when the existing card-inserted video processing device realizes a pre-monitoring function, the last video output card has an idle resource, which causes a waste of resources, and in some large-scale physical activities, such as a concert or an important meeting, a prompter function is often needed, or the display content of a main meeting place is output to a meeting place for display, and then the existing card-inserted video processing device does not support an auxiliary display function, such as a prompter. The video processing method disclosed by the embodiment of the invention comprises the steps of processing a first video source by a first group of zooming modules and a first superposition module to obtain a pre-monitoring picture, outputting the pre-monitoring picture to a first display screen through a first group of data interfaces for picture display, responding to an auxiliary display instruction, processing a plurality of second video sources by a second group of zooming modules and a second superposition module to obtain an auxiliary display picture, outputting the auxiliary display picture to a second display screen through a second group of data interfaces for picture display, avoiding the problem of great resource waste in the existing video processing equipment, improving the resource utilization rate of the video processing equipment, reasonably utilizing idle resources under the pre-monitoring function, realizing the auxiliary picture display function, enriching the display information of the video processing equipment, the method can realize two modes of pre-monitoring picture display and auxiliary picture display, and meets the requirements of customers.
In one embodiment of the invention, the plurality of second video sources are from at least one video input card connected to the backplane or from at least one second video output card connected to the backplane.
In one embodiment of the present invention, the second video output card includes: the system comprises a third group of zooming modules, a fourth group of zooming modules, a third overlaying module, a fourth overlaying module, a selection module, a first monitoring processing module, a second monitoring processing module, a first review processing module and a second review processing module, wherein the third group of zooming modules are connected with the third overlaying module, the fourth group of zooming modules are connected with the fourth overlaying module, the selection module is connected with the third overlaying module and the fourth overlaying module, and the first monitoring processing module, the second monitoring processing module, the first review processing module and the second review processing module are all connected with the selection module; wherein the second video output card is to: receiving a plurality of input initial video sources; the third group of zooming modules zoom a first part of initial video sources in the plurality of initial video sources to obtain a zoomed first part of initial video sources; the third superposition module carries out superposition processing on the zoomed first part of initial video sources to obtain a third superposition processing result; the fourth group of zooming modules zoom a second part of initial video sources in the plurality of initial video sources to obtain zoomed second part of initial video sources; the fourth superposition module carries out superposition processing on the zoomed second part of initial video sources to obtain a fourth superposition processing result; the selection module selects one of the third superposition processing result and the fourth superposition processing result as an on-air picture to be output to a target display screen through a target data interface for picture display; responding to a first pre-monitoring instruction, transmitting the on-air picture to the first monitoring processing module by the selection module, and outputting the on-air picture to a back panel as the first video source after the on-air picture is processed by the first monitoring processing module; responding to a second pre-monitoring instruction, transmitting the other one of the third superposition processing result and the fourth superposition processing result serving as a pre-processing picture to the second monitoring processing module by the selection module, and outputting the pre-processing picture to the backboard to serve as the first video source after the pre-processing picture is processed by the second monitoring processing module; in response to the auxiliary display instruction, transmitting the on-air picture to the first review processing module and/or the second review processing module by the selection module, so that the on-air picture is output to the backboard as the second video source after being scaled to a specified resolution by the first review module and/or the second review module; or in response to the auxiliary display instruction, the selection module transmits the preprocessed picture to the second review processing module and/or the first review processing module, so that the preprocessed picture is scaled to the specified resolution by the second review processing module and/or the first review processing module and then is output to the backboard as the second video source.
In one embodiment of the invention, the initial video source is from the at least one video input card.
In a fourth aspect, an embodiment of the present invention provides a video processing apparatus, including: the back plate is provided with a matrix switching module and an output connector connected with the matrix switching module; the video output card is connected with the output connector; wherein the video output card includes: a backplane connector connected to the output connector; a programmable logic device connected to the backplane connector, comprising: a first group of scaling modules connected with the backplane connector; the first superposition module is connected with the first group of zooming modules; the second group of zooming modules are connected with the backplane connector; the second superposition module is connected with the second group of zooming modules; the first group of data interfaces are connected with the programmable logic device; the second group of data interfaces are connected with the programmable logic device; wherein the programmable logic device is configured to perform any one of the video processing methods described above.
As can be seen from the above, the embodiments of the present invention can achieve one or more of the following advantages: the problem of great resource waste inside the existing video processing equipment is avoided, the resource utilization rate of the video processing equipment is improved, idle resources under the pre-monitoring function are reasonably utilized, the auxiliary picture display function is realized, the display information of the video processing equipment is enriched, two modes of pre-monitoring picture display and auxiliary picture display can be realized, and the customer requirements are met.
Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Drawings
The following detailed description of embodiments of the invention will be made with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a video processing apparatus according to a first embodiment of the present invention.
Fig. 2 is another schematic structural diagram of a video processing apparatus according to the first embodiment of the present invention.
Fig. 3 is a flowchart illustrating steps of a video processing method according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a video processing apparatus according to a third embodiment of the present invention.
Fig. 5 is a schematic diagram of a structure of the video output card 32 in the video processing apparatus shown in fig. 4.
Fig. 6 is another schematic structural diagram of a video processing apparatus according to a third embodiment of the present invention.
Fig. 7 is a schematic diagram showing a structure of the video output card 33 in the video processing apparatus shown in fig. 6.
Fig. 8 is a flowchart illustrating a video processing method according to a fourth embodiment of the present invention.
[ description of reference ]
10: a video processing device; 11: a programmable logic device; 111: a first set of scaling modules; 112: a superposition module; 113: a video source sharing interface; 12: a first set of data interfaces; 13: a programmable logic device; 131: a second set of scaling modules; 132: a superposition module; 133: a third set of scaling modules; 134: a video source sharing interface; 14: a second set of data interfaces; 15: a pre-monitoring interface; 16: a microcontroller; 17: a memory;
S21-S26: a step of a video processing method;
30: a video processing device; 31: a back plate; 311: a matrix switching module; 312: an output connector; 313: an output connector; 314: an input connector; 32: a video output card; 321: a backplane connector; 322: a programmable logic device; 3221: a first set of scaling modules; 3222: a superposition module; 3223: a second set of scaling modules; 3224: a superposition module; 323: a first set of data interfaces; 324: a second set of data interfaces; 33: a video output card; 331: a backplane connector; 332: a programmable logic device; 3321: a third set of scaling modules; 3322: a superposition module; 3323: a fourth set of scaling modules; 3324: a superposition module; 3325: a selection module; 3326: a monitoring processing module; 3327: a monitoring processing module; 3328: a review processing module; 3329: a review processing module; 333: a target data interface; 34: a video input card;
S41-S46: steps of a video processing method.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the division of the embodiments of the present invention is only for convenience of description and should not be construed as a limitation, and features of various embodiments may be combined and referred to each other without contradiction.
[ first embodiment ] A method for manufacturing a semiconductor device
In the prior art, a large amount of resource waste exists inside video processing equipment, for example, two-in-one video processing equipment comprises a switching station mode and a splicer mode, in the splicer mode, all the zoom processing modules inside the video processing equipment can perform video source zoom processing and then output the video source zoom processing to corresponding superimposing modules for superimposing, and then output a spliced picture through corresponding data interfaces; however, only part of the zoom processing modules in the switching station mode work, idle resources exist, internal resources are wasted, and auxiliary display functions such as a prompter are not supported in the switching station mode.
To this end, a video processing apparatus is disclosed in a first embodiment of the present invention, and as shown in fig. 1, a video processing apparatus 10 of the present embodiment includes, for example: programmable logic device 11, first set of data interfaces 12, programmable logic device 13, second set of data interfaces 14, and pre-supervisory interface 15.
As shown in fig. 1, the programmable logic device 11 includes, for example: a first set of scaling module 111 and an overlay module 112. The overlay module 112 is connected to the first group scaling module 111. The first set of data interfaces 12 is connected to the overlay module 112 of the programmable logic device 11. The programmable logic device 13 includes, for example: a second set of scaling modules 131, a superposition module 132, and a third set of scaling modules 133. The overlay module 132 is connected to the second group scaling module 131. The third group scaling module 133 is connected to the overlay module 132. The second set of data interfaces 14 connects the overlay module 132 and the third set of scaling modules 133 of the programmable logic device 13. The pre-monitoring interface 15 is connected to the overlay module 132 of the programmable logic device 13.
The video processing apparatus 10 includes, for example, two operation modes: a first operating mode, such as a switch station operating mode, and a second operating mode, such as a splicer operating mode.
Specifically, the video processing apparatus 10 is, for example, configured to, in response to the current operation mode being the first operation mode: receiving a plurality of input first video sources, performing zoom processing on a first part of the first video sources in the plurality of first video sources by a first group zoom module 111 to obtain a zoomed first part of the first video sources, performing overlay processing on the zoomed first part of the first video sources by an overlay module 112 to obtain a first overlay processing result, and outputting the first overlay processing result as an on-screen image to a first display screen via a first group data interface 12 for image display; the second group of zooming modules 131 zoom a second part of the first video sources in the plurality of first video sources to obtain a zoomed second part of the first video sources, the superimposing module 132 superimposes the zoomed second part of the first video sources to obtain a second superimposing result, and the second superimposing result is used as a pre-monitoring picture and is output to the second display screen via the pre-monitoring interface 15 for picture display; in response to the auxiliary display instruction, the third group scaling module 133 scales any one of the first video sources to obtain a scaled first video source, and outputs the scaled first video source as an auxiliary display image to the third display screen via the second group data interface 14 for image display.
The plurality of first video sources mentioned herein are, for example, HDMI video sources, DVI video sources, DP video sources, SDI video sources, and any combination thereof, and for example, the plurality of first video sources includes 16 video sources. The first partial first video source and the second partial first video source mentioned include all the same video sources, or include partially the same video sources, for example, the first partial first video source includes 8 video sources, and the second partial first video source includes 14 video sources, for example, where 14 video sources include 8 video sources which are the same as the first partial first video source, and of course, the second partial first video source may include all the first video sources. The first set of data interfaces 12 and the second set of data interfaces 14 mentioned include, for example, data interfaces of the same data, for example, two data interfaces, and the mentioned data interfaces are, for example, digital video interfaces, network interfaces, or fiber interfaces, wherein the digital video interfaces include, for example: HDMI interface, DP interface, SDI interface and DVI interface, etc. The mentioned network ports are for example hundred mega network interfaces or giga network interfaces, etc. The mentioned optical fiber interface is, for example, a 10G optical fiber interface or a 20G optical fiber interface, etc. The mentioned pre-monitoring interface 15 is, for example, a digital video interface, such as an HDMI interface, for example. The first display screen, the second display screen and the third display screen are the same display screen, or different display screens respectively, and some two display screens are the same display screen. For example, the first display screen is an LED display screen, the second display screen is a liquid crystal display screen, the third display screen is an LED display screen, and the first display screen and the third display screen are the same LED display screen or different LED display screens.
Further, the video processing device 10 may also operate in a second operation mode, i.e. a splicer mode, in which the first group of scaling modules 111, the second group of scaling modules 131 and the third group of scaling modules 133 inside the video processing device 10 may all operate to implement the scaling process of the spliced picture.
Specifically, the video processing device 10 is further configured to, in response to the current operation mode being the second operation mode: receiving a plurality of input second video sources, performing zoom processing on a first part of second video sources in the plurality of second video sources by a first group zoom module 111 to obtain a zoomed first part of second video sources, performing overlay processing on the zoomed first part of second video sources by an overlay module 112 to obtain a third overlay processing result, and outputting the third overlay processing result to the first display screen via a first group data interface 12 for screen display; the second group of scaling module 131 and the third group of scaling module 133 scale a second part of the second video sources in the plurality of second video sources to obtain a scaled second part of the second video sources, the superimposing module 132 superimposes the scaled second part of the second video sources to obtain a fourth superimposing result, and the fourth superimposing result is output to the first display screen via the second group of data interfaces 14 to be displayed in a splicing manner with the third superimposing result.
The plurality of second video sources mentioned herein are, for example, HDMI video sources, DVI video sources, DP video sources, SDI video sources, and any combination thereof, and for example, the plurality of second video sources includes 16 video sources. The first partial second video source and the second partial second video source mentioned comprise, for example, the same number of video sources and are each identical, for example, the first partial second video source comprises, for example, 8 video sources and the second partial second video source comprises, for example, another 8 video sources different from the first partial second video source.
Further, the video processing apparatus 10 disclosed in this embodiment may further utilize the third group scaling module 133 to implement a switching special effect of a video source in the splicer mode, so as to improve the user experience.
Specifically, the video processing device 10 is configured to, in response to the current operation mode being the second operation mode: receiving a plurality of input second video sources; the first group of scaling modules 111 perform scaling processing on a first part of second video sources in the plurality of second video sources to obtain a scaled first part of second video sources; the superposition module 112 performs superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen via the first group of data interfaces 12 for image display; the second group of scaling modules 131 perform scaling processing on a second part of the second video sources in the plurality of second video sources to obtain scaled second part of the second video sources; the superposition module 132 performs superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and outputs the fourth superposition processing result to the first display screen through the second group of data interfaces 14 to be displayed in a splicing manner with the third superposition processing result; in response to a video source switching instruction, determining an initial video source and a target video source corresponding to a to-be-switched scaling module in the second group of scaling modules 131; selecting the target video source from the plurality of second video sources for scaling by the third group scaling module 133 to obtain a scaled target video source; the superposition module 132 covers the scaled target video source with the initial video source corresponding to the scaling module to be switched, gradually reduces the transparency of the scaled target video source, and switches the initial video source corresponding to the scaling module to be switched to the target video source.
It can be understood that, generally, the video source processed by the zoom module to be switched is located at the topmost layer of the display interface, when the video source is switched, after the target video source is zoomed by the third group of zoom modules 133, the zoomed target video source is superimposed on the topmost layer by the superimposing module 132 to cover the initial video source output by the zoom module to be switched, at this time, the transparency of the zoomed target video source is 100, and then the transparency is gradually reduced to 0 from 100, that is, the fade-in special effect of the target video source is realized, when the transparency of the zoomed target video source is reduced to 0, the target video source is completely displayed, at this time, the initial video source in the zoom module to be switched is switched to the target video source, and then, the third group of zoom modules 133 is turned off, so that the switching of the video source is completed.
Further, the first group of scaling modules 111 for example comprises a plurality of first scaling sub-modules, the second group of scaling modules 131 for example comprises a plurality of second scaling sub-modules, and the third group of scaling modules 133 for example comprises a third scaling sub-module.
Further, considering that it is impossible to directly access all video sources under the limitation of the pin resources of the programmable logic devices 11 and 13, two programmable logic devices can be respectively and directly introduced into half of the video sources through internal buses, and missing video sources are mutually copied in real time by using a GTX (Gigabit Transceiver) technology, thereby ensuring that all video sources can be taken by both programmable logic devices and providing support for realizing dual modes of the video processing device 10.
Specifically, as shown in fig. 2, the programmable logic device 11 further includes a video source sharing interface 113, for example, and the programmable logic device 13 further includes a video source sharing interface 134, for example. The video source sharing interface 113 is connected to the video source sharing interface 134 for video source sharing between the first programmable logic device 11 and the second programmable logic device 13.
The video source sharing interface 113 and the video source sharing interface 134 can transmit a plurality of video sources simultaneously or sequentially. The video source sharing interface 113 and the video source sharing interface 134 employ, for example, GTX technology. The GTX (gigabit transmitter) technology is used for meeting the requirement of the high-speed and real-time transmission of huge data of modern digital processing technology and computing technology, and can avoid the problems of low interference resistance, poor synchronization capability, low transmission rate, poor signal quality and the like of the traditional parallel transmission technology. The current linear speed range of GTX is 1 Gbps-12 Gbps, and the effective load range is 0.8 Gbps-10 Gbps.
Further, the video processing device 10 also includes, for example, a microcontroller 16 and a memory 17. The microcontroller 16 is connected to the programmable logic device 11 and the programmable logic device 13, and the memory 17 is connected to the microcontroller 16.
Specifically, the mentioned Microcontroller is, for example, an MCU (Microcontroller Unit) or other microprocessors with certain data processing and computing capabilities, such as an ARM processor, a DSP processor, and the like. The memory mentioned includes, for example, a Flash memory Flash, an EMMC (Embedded Multi Media Card), and the like nonvolatile memory.
A user is connected to the microcontroller 16, for example via a network or a human-machine interface such as knobs, human-machine interaction display screens or buttons, etc., to control the video processing apparatus 10 for operations such as switching of operating modes. The microcontroller 16 can flexibly configure the operation modes of the programmable logic device 11 and the programmable logic device 13 according to the selection of the user, and then read/write the required data from the memory 17 at high speed in different operation modes. The programmable logic device 11 and the programmable logic device 13 perform scaling and superposition processing on the video source according to the configuration of the microcontroller 16 and then output the video source.
Specifically, the aforementioned Programmable logic devices 11 and 13 are, for example, an FPGA (Field Programmable Gate Array) or the like. And the programmable logic device 11 and the programmable logic device 13 have color processing functions including brightness, chroma, saturation, Gamma adjustment, skin color compensation, color enhancement and the like, for example, complete video enhancement processing functions such as image de-interlacing, stepless zooming and the like, and can realize image fusion functions such as PIP, image-text superposition and the like.
It should be noted that, when the first group of data interfaces 12 and the second group of data interfaces 14 are digital video interfaces, for example, DVI interfaces, a DVI video encoding chip is further disposed between the DVI interfaces and the programmable logic device. When the video source output interface is a network port, such as a gigabit network port, a gigabit ethernet PHY chip is further disposed between the gigabit network port and the programmable logic device. When the video source output interface is an optical fiber interface, for example, a 10G optical fiber interface, an SFP optical module is further disposed between the optical fiber interface and the programmable logic device.
In summary, the video processing device disclosed in this embodiment avoids the problem of large resource waste in the existing video processing device, improves the resource utilization rate of the video processing device, reasonably utilizes the idle resources in the switching station mode to realize the auxiliary display function, enriches the display information in the switching station mode, can realize two display modes of pre-monitoring picture display and auxiliary picture display, and meets the customer requirements.
[ second embodiment ]
Referring to fig. 3, a second embodiment of the present invention discloses a video processing method, which is suitable for a video processing device, where the video processing device includes, for example, a first group of scaling modules, a second group of scaling modules, a third group of scaling modules, a first overlay module, and a second overlay module, where the first group of scaling modules is connected to the first overlay module, and the second group of scaling modules and the third group of scaling modules are connected to the second overlay module. As shown in fig. 3, the video processing method includes, for example:
in response to the current operating mode being the first operating mode:
step S21: receiving a plurality of input first video sources;
step S22: the first group of zooming modules zoom a first part of first video sources in the plurality of first video sources to obtain a zoomed first part of first video sources;
step S23: the first superposition module carries out superposition processing on the zoomed first part of the first video source to obtain a first superposition processing result, and the first superposition processing result is used as an on-broadcasting picture and is output to a first display screen through a first group of data interfaces to be displayed;
step S24: the second group of zooming modules zoom a second part of first video sources in the plurality of first video sources to obtain a zoomed second part of first video sources;
step S25: the second superposition module carries out superposition processing on the zoomed second part of the first video source to obtain a second superposition processing result, and the second superposition processing result is used as a pre-monitoring picture and is output to a second display screen through a pre-monitoring interface to be displayed; and
step S26: responding to an auxiliary display instruction, the third group of zooming modules zoom any one path of first video source in the plurality of first video sources to obtain a zoomed first video source, and the zoomed first video source is used as an auxiliary display picture and is output to a third display screen through a second group of data interfaces for picture display.
Further, the video processing method disclosed in this embodiment further includes, for example: in response to the current operating mode being the second operating mode: receiving a plurality of input second video sources; the first group of zooming modules zoom a first part of second video sources in the plurality of second video sources to obtain a zoomed first part of second video sources; the first superposition module carries out superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and the third superposition processing result is output to the first display screen through the first group of data interfaces to be displayed; the second group of zooming modules and the third zooming module zoom a second part of second video sources in the plurality of second video sources to obtain a second part of second video sources after zooming; and the second superposition module carries out superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and the fourth superposition processing result is output to the first display screen through the second group of data interfaces so as to be spliced and displayed with the third superposition processing result.
Further, the video processing method disclosed in this embodiment further includes, for example: receiving a plurality of input second video sources; the first group of zooming modules zoom a first part of second video sources in the plurality of second video sources to obtain a zoomed first part of second video sources; the first superposition module carries out superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and the third superposition processing result is output to the first display screen through the first group of data interfaces to be displayed; the second group of zooming modules zoom a second part of second video sources in the plurality of second video sources to obtain zoomed second part of second video sources; the second superposition module carries out superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and the fourth superposition processing result is output to the first display screen through the second group of data interfaces to be spliced and displayed with the third superposition processing result; responding to a video source switching instruction, and determining an initial video source and a target video source corresponding to a to-be-switched zooming module in the second group of zooming modules; selecting the target video source from the plurality of second video sources by the third group of zooming modules to perform zooming processing to obtain a zoomed target video source; and the second superposition module covers the zoomed target video source with the initial video source corresponding to the zoom module to be switched, gradually reduces the transparency of the zoomed target video source, and switches the initial video source corresponding to the zoom module to be switched into the target video source.
Further, the first group of scaling modules includes a plurality of first scaling sub-modules, the second group of scaling modules includes a plurality of second scaling sub-modules, the third group of scaling modules includes a third scaling sub-module, the first group of data interfaces includes a plurality of first data interfaces, and the second group of data interfaces includes a plurality of second data interfaces.
It should be noted that the video processing method disclosed in this embodiment is executed in the video processing apparatus 10 disclosed in the first embodiment, and for the description of the relevant steps of the video processing method, reference may be made to the description of the video processing apparatus disclosed in the first embodiment, and for brevity, no further description is given here, and the beneficial effects of this embodiment are the same as those of the first embodiment.
[ third embodiment ]
In the prior art, a great resource waste exists inside the video processing device, for example, when the card-inserted video processing device realizes the pre-monitoring function, the last video output card has idle resources, which causes a waste of resources, and in some large-scale physical activities, such as a concert or an important meeting, a prompter function is often required, or the display content of a main meeting place is output to a meeting place for display, and the existing card-inserted video processing device does not support the auxiliary display function of the prompter and the like.
To this end, a third embodiment of the present invention discloses a video processing apparatus. As shown in fig. 4, the video processing apparatus 30 includes, for example: a backplane 31 and a video output card 32 connected to the backplane 31.
Among them, the backplane 31 is provided with, for example, a matrix switching module 311 and an output connector 312 connecting the matrix switching module 311. The video output card 32 is connected to the output connector 312. The mentioned matrix switch module 311 includes, for example, a matrix switch chip, for example, a rectangular switch chip is a Crosspoint switch chip. The output connector 312 is, for example, a pin header connector, and the pin header connector is, for example, a simple pin header connector, abbreviated as "simple pin" connector, which is composed of, for example, a square plastic socket and a plurality of square pins arranged in order. Of course, the output connector 312 may be a female connector or other type of connector.
Specifically, as shown in fig. 5, the video output card 32 includes, for example: backplane connector 321, programmable logic device 322, first set of data interfaces 323, and second set of data interfaces 324. The backplane connector 321 is connected to the output connector 312. The programmable logic device 322 is connected to the backplane connector 321, and the programmable logic device 322 includes, for example: a first set of zoom modules 3221, an overlay module 3222, a second set of zoom modules 3223, and an overlay module 3224. The first group of zoom modules 3221 are connected to the backplane connector 321. The overlay module 3222 is connected to the first set of zoom modules 3221. The second set of zoom modules 3223 are connected to the backplane connector 321. The overlay module 3224 is connected to the second set of zoom modules 3223. The first set of data interfaces 323 connects the overlay module 3222 of the programmable logic device 322. The second set of data interfaces 324 connects the overlay module 3224 of the programmable logic device 322.
The programmable logic device 322 of the video output card 32 is, for example, configured to receive a plurality of first video sources input by the backplane 31, the first group of scaling modules 3221 perform scaling processing on the plurality of first video sources to obtain a plurality of scaled first video sources, the superposition module 3222 performs superposition processing on the plurality of scaled first video sources to obtain a pre-monitoring screen, and the pre-monitoring screen is output to the first display screen via the first group of data interfaces 323 for screen display; in response to the auxiliary display instruction, receive a plurality of second video sources input by the back panel 31, perform scaling processing on the plurality of second video sources by the second group scaling module 3223 to obtain a plurality of scaled second video sources, perform overlay processing on the plurality of scaled second video sources by the overlay module 3224 to obtain an auxiliary display screen, and output the auxiliary display screen to the second display screen via the second group data interface 324 for screen display.
The backplane connector 321 is matched with the output connector 312, such as a pin header connector or a female header connector. The mentioned first video sources and the second video sources are for example HDMI video sources, DVI video sources, DP video sources, SDI video sources, etc. in any combination, for example, the mentioned first video sources comprise for example 8 video sources, and the mentioned second video sources comprise for example 8 video sources. The first and second sets of zoom modules 3221, 3223 mentioned comprise, for example, the same number of zoom modules, for example, the first and second sets of zoom modules 3221, 3223 comprise, for example, 8 zoom modules. The first group 323 and the second group 324 of data interfaces include, for example, the same number of data interfaces, for example, the first group 323 and the second group 324 of data interfaces include, for example, two data interfaces, and the mentioned data interfaces include, for example, a digital video interface, a network interface, or a fiber interface, where the digital video interface includes, for example: HDMI interface, DP interface, SDI interface and DVI interface, etc. The mentioned network ports are for example hundred megabits or giga-bits, etc. The mentioned optical fiber interface is, for example, a 10G optical fiber interface or a 20G optical fiber interface, etc.
Further, as shown in fig. 6, the video processing apparatus 30 further includes at least one video output card 33, for example, at least one output connector 313 connected to the matrix switch module 311 is disposed on the back panel 31, the at least one video output card 33 is correspondingly connected to the at least one output connector 313, only one video output card 33 and one output connector 313 are illustrated in fig. 6, but the embodiment is not limited thereto. Wherein the aforementioned plurality of second video sources is for example from at least one video output card 33.
Further, as shown in fig. 7, the video output card 33 includes, for example: backplane connector 331, programmable logic device 332, and target data interface 333. The programmable logic device 332 includes, for example, a third group scaling module 3321, a fourth group scaling module 3323, an overlay module 3322, an overlay module 3324, a selection module 3325, a monitoring processing module 3326, a monitoring processing module 3327, a review processing module 3328, and a review processing module 3329, where the third group scaling module 3321 is connected to the overlay module 3322, the fourth group scaling module 3323 is connected to the overlay module 3324, the selection module 3325 is connected to the overlay module 3322 and the overlay module 3324, and the monitoring processing module 3326, the monitoring processing module 3327, the review processing module 3328, and the review processing module 3329 are connected to the selection module 3325.
Specifically, the video output card 33 is configured to receive a plurality of input initial video sources, perform scaling processing on a first part of the initial video sources in the plurality of initial video sources by the third group scaling module 3321 to obtain a scaled first part of the initial video sources, perform superposition processing on the scaled first part of the initial video sources by the superposition module 3322 to obtain a third superposition processing result, perform scaling processing on a second part of the initial video sources in the plurality of initial video sources by the fourth group scaling module 3323 to obtain a scaled second part of the initial video sources, perform superposition processing on the scaled second part of the initial video sources by the superposition module 3324 to obtain a fourth superposition processing result, selecting one of the third superposition processing result and the fourth superposition processing result as an on-air picture by a selection module 3325, and outputting the on-air picture to a target display screen via a target data interface 333 for picture display; in response to a first pre-monitoring instruction, the selection module 3325 transmits the on-air screen to the monitoring processing module 3326, so that the on-air screen is processed by the monitoring processing module 3326 and then output to the back panel 31 as the aforementioned first video source, and in response to a second pre-monitoring instruction, the selection module 3325 transmits the other of the third overlay processing result and the fourth overlay processing result as a pre-processing screen to the monitoring processing module 3327, so that the pre-processing screen is processed by the monitoring processing module 3327 and then output to the back panel 31 as the aforementioned first video source; in response to the auxiliary display instruction, the on-air screen is transmitted by the selection module 3325 to the review processing module 3328 and/or the review processing module 3329 to be output to the back panel 31 after the on-air screen is scaled to the specified resolution by the review module 3328 and/or the review module 3329 as the aforementioned second video source, or in response to the auxiliary display instruction, the pre-processing screen is transmitted by the selection module 3325 to the review processing module 3329 and/or the review processing module 3328 to be output to the back panel 31 after the pre-processing screen is scaled to the specified resolution by the review processing module 3329 and/or the review processing module 3328 as the aforementioned second video source.
The plurality of initial video sources mentioned herein include, for example, any combination of HDMI video source, DVI video source, DP video source, SDI video source, etc., for example, the plurality of initial video sources includes, for example, 16 DVI video sources. The first partial initial video source and the second partial initial video source mentioned comprise, for example, the same number of video sources, for example, the first partial initial video source comprises, for example, 8 video sources, and the second partial initial video source comprises, for example, 8 video sources. The third set of scaling modules 3321 and the fourth set of scaling modules 3323 mentioned comprise for example the same number of scaling modules, for example the third set of scaling modules 3321 and the fourth set of scaling modules 3323 comprise for example 8 scaling modules. The target data interface 333 is, for example, a digital video interface, such as an HDMI, DVI, or SDI interface, etc., although the target data interface 333 may also be a network interface, such as a hundreds of megabytes or gigabytes network interface, etc., or an optical fiber interface, such as a 10G optical fiber interface or a 20G optical fiber interface, etc. It should be noted that when the target data interface 333 is a digital video interface, for example, an HDMI interface, an HDMI video encoding chip is further provided between the HDMI interface and the programmable logic device 332, when the target data interface is an optical fiber interface, for example, a gigabit network interface, a gigabit network PHY chip is further provided between the gigabit network interface and the programmable logic device 332, and when the target data interface is an optical fiber interface, for example, a 10G optical fiber interface, an SFP optical module is further provided between the optical fiber interface and the programmable logic device 332.
The target display screen is, for example, an LCD display screen or an LED display screen, wherein the LED display screen includes an LED display screen body and a receiving card connected to the LED display screen body, and the receiving card is typically provided with a network port for connecting with the video processing device 30 through a sending card or directly with the video processing device 30. The LED display screen body is formed by, for example, a plurality of LED boxes, and typically, each LED box is configured with a receiving card.
Further, as shown in fig. 6, the video processing apparatus 30 further includes at least one video input card 34, for example, at least one input connector 314 connected to the matrix switch module 311 is disposed on the back panel 31, the at least one video input card 34 is correspondingly connected to the at least one input connector 314, only one video input card 34 and one input connector 314 are illustrated in fig. 6, but the invention is not limited thereto. Wherein the aforementioned plurality of second video sources is, for example, from at least one video input card 34. That is, for the video output card 32, the second video source received from the backplane may be from the video input card 34 or from the video output card 33. Of course, the first video source received by the video output card 32 from the backplane may also be from the video output card 33 and/or the video input card 34.
It should be noted that the video output card 32 and the video output card 33 included in the video processing apparatus 30 disclosed in this embodiment are, for example, the same hardware architecture, and the resource utilization inside the programmable logic device is, for example, completely the same, that is, the programmable logic device 322 of the video output card 32 is also provided with a selection module connected to the overlay module, and a monitoring processing module and a review processing module connected to the selection module, and only when the video output card 32 responds to the pre-monitoring instruction or the auxiliary display instruction, it does not perform similar work as the video output card 33. The related operations of the video processing apparatus 30 for performing video source pre-monitoring in response to the pre-monitoring instruction are related to the prior art, and will not be described here.
Further, the video output card 32 and the video output card 33 include, in addition to the aforementioned programmable logic device and the data interface connecting the programmable logic device: a microcontroller connected to the programmable logic device, and a memory connected to the microcontroller.
The mentioned microcontroller is, for example, an MCU, also called a microcomputer or a single chip microcomputer; or other microprocessors with certain data processing and computing capabilities, such as ARM processors and DSP processors. The programmable logic device is referred to as an FPGA or other similar logic device, for example. The memory mentioned is, for example, a non-volatile memory such as Flash memory Flash, or emmc (embedded Multi Media card).
In summary, the video processing device disclosed in the embodiment of the present invention can avoid the problem of large resource waste in the existing video processing device, improve the resource utilization rate of the video processing device, reasonably utilize the idle resources under the pre-monitoring function, realize the auxiliary screen display function, enrich the display information of the video processing device, and realize two modes of pre-monitoring screen display and auxiliary screen display, thereby meeting the customer requirements.
[ fourth example ] A
Referring to fig. 8, a fourth embodiment of the present invention discloses a video processing method, which is suitable for a video processing device, where the video processing device includes, for example, a first group of scaling modules, a second group of scaling modules, a first overlay module, and a second overlay module, where the first group of scaling modules is connected to the first overlay module, and the second group of scaling modules is connected to the second overlay module. As shown in fig. 8, the video processing method includes, for example:
step S41: receiving a plurality of first video sources input by a backplane;
step S42: the first group of zooming modules zoom the plurality of first video sources to obtain a plurality of zoomed first video sources;
step S43: the first superposition module superposes the zoomed first video sources to obtain a pre-monitoring picture, and the pre-monitoring picture is output to a first display screen through a first group of data interfaces to be displayed;
step S44: receiving a plurality of second video sources input by the backplane in response to an auxiliary display instruction;
step S45: the second group of zooming modules zoom the plurality of second video sources to obtain a plurality of zoomed second video sources;
step S46: and the second superposition module superposes the zoomed second video sources to obtain an auxiliary display picture, and outputs the auxiliary display picture to a second display screen via a second group of data interfaces for picture display.
Further, the aforementioned plurality of second video sources are, for example, from at least one video input card connected to the backplane, or from at least one second video output card connected to the backplane.
Further, the aforementioned second video output card includes, for example: the system comprises a third group of zooming modules, a fourth group of zooming modules, a third overlapping module, a fourth overlapping module, a selection module, a first monitoring processing module, a second monitoring processing module, a first review processing module and a second review processing module, wherein the third group of zooming modules are connected with the third overlapping module, the fourth group of zooming modules are connected with the fourth overlapping module, the selection module is connected with the third overlapping module and the fourth overlapping module, and the first monitoring processing module, the second monitoring processing module, the first review processing module and the second review processing module are all connected with the selection module.
Wherein the second video output card is for example used to: receiving a plurality of input initial video sources; the third group of zooming modules zoom a first part of initial video sources in the plurality of initial video sources to obtain a zoomed first part of initial video sources; the third superposition module carries out superposition processing on the zoomed first part of initial video sources to obtain a third superposition processing result; the fourth group of zooming modules zoom a second part of initial video sources in the plurality of initial video sources to obtain zoomed second part of initial video sources; the fourth superposition module carries out superposition processing on the zoomed second part of initial video sources to obtain a fourth superposition processing result; the selection module selects one of the third superposition processing result and the fourth superposition processing result as an on-air picture to be output to a target display screen through a target data interface for picture display; responding to a first pre-monitoring instruction, transmitting the on-air picture to the first monitoring processing module by the selection module, and outputting the on-air picture to the backboard as the first video source after the on-air picture is processed by the first monitoring processing module; responding to a second pre-monitoring instruction, transmitting the other one of the third superposition processing result and the fourth superposition processing result serving as a pre-processing picture to the second monitoring processing module by the selection module, and outputting the pre-processing picture to the backboard to serve as the first video source after the pre-processing picture is processed by the second monitoring processing module; in response to the auxiliary display instruction, transmitting the on-air picture to the first review processing module and/or the second review processing module by the selection module, so that the on-air picture is output to the backboard as the second video source after being scaled to a specified resolution by the first review module and/or the second review module; or in response to the auxiliary display instruction, the selection module transmits the preprocessed picture to the second review processing module and/or the first review processing module, so that the preprocessed picture is scaled to the specified resolution by the second review processing module and/or the first review processing module and then is output to the backboard as the second video source.
Further, the aforementioned initial video source is for example from the at least one video input card.
It should be noted that the video processing method disclosed in this embodiment is executed in the video processing apparatus 30 disclosed in the third embodiment, and for the description of the relevant steps of the video processing method, reference may be made to the description of the video processing apparatus disclosed in the third embodiment, and for brevity, no further description is given here, and the beneficial effects of this embodiment are the same as those of the third embodiment.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A video processing method, adapted to a video processing apparatus, the video processing apparatus comprising: the system comprises a first group of zooming modules, a second group of zooming modules, a first superposition module and a second superposition module, wherein the first group of zooming modules are connected with the first superposition module, and the second group of zooming modules are connected with the second superposition module; the video processing method comprises the following steps:
receiving a plurality of first video sources input by a backplane;
the first group of zooming modules zoom the plurality of first video sources to obtain a plurality of zoomed first video sources;
the first superposition module superposes the zoomed first video sources to obtain a pre-monitoring picture, and the pre-monitoring picture is output to a first display screen through a first group of data interfaces to be displayed;
receiving a plurality of second video sources input by the backplane in response to an auxiliary display instruction;
the second group of zooming modules zoom the plurality of second video sources to obtain a plurality of zoomed second video sources;
and the second superposition module superposes the zoomed second video sources to obtain an auxiliary display picture, and outputs the auxiliary display picture to a second display screen via a second group of data interfaces for picture display.
2. The video processing method of claim 1, wherein the plurality of second video sources are from at least one video input card connected to the backplane or from at least one second video output card connected to the backplane.
3. The video processing method of claim 2, wherein the second video output card comprises: the system comprises a third group of zooming modules, a fourth group of zooming modules, a third overlaying module, a fourth overlaying module, a selection module, a first monitoring processing module, a second monitoring processing module, a first review processing module and a second review processing module, wherein the third group of zooming modules are connected with the third overlaying module, the fourth group of zooming modules are connected with the fourth overlaying module, the selection module is connected with the third overlaying module and the fourth overlaying module, and the first monitoring processing module, the second monitoring processing module, the first review processing module and the second review processing module are all connected with the selection module; wherein the second video output card is to:
receiving a plurality of input initial video sources;
the third group of zooming modules zoom a first part of initial video sources in the plurality of initial video sources to obtain a zoomed first part of initial video sources;
the third superposition module carries out superposition processing on the zoomed first part of initial video sources to obtain a third superposition processing result;
the fourth group of zooming modules zoom a second part of initial video sources in the plurality of initial video sources to obtain zoomed second part of initial video sources;
the fourth superposition module carries out superposition processing on the zoomed second part of initial video sources to obtain a fourth superposition processing result; and
selecting one of the third superposition processing result and the fourth superposition processing result as an on-air picture by the selection module, and outputting the on-air picture to a target display screen through a target data interface for picture display;
responding to a first pre-monitoring instruction, transmitting the on-air picture to the first monitoring processing module by the selection module, and outputting the on-air picture to the backboard as the first video source after the on-air picture is processed by the first monitoring processing module;
responding to a second pre-monitoring instruction, transmitting the other one of the third superposition processing result and the fourth superposition processing result serving as a pre-processing picture to the second monitoring processing module by the selection module, and outputting the pre-processing picture to the backboard to serve as the first video source after the pre-processing picture is processed by the second monitoring processing module;
in response to the auxiliary display instruction, transmitting the on-air picture to the first review processing module and/or the second review processing module by the selection module, so that the on-air picture is output to the backboard as the second video source after being scaled to a specified resolution by the first review module and/or the second review module; or
Responding to the auxiliary display instruction, transmitting the preprocessed picture to the second review processing module and/or the first review processing module by the selection module, so that the preprocessed picture is scaled to the specified resolution by the second review processing module and/or the first review processing module and then is output to the backboard as the second video source.
4. The video processing method of claim 3, wherein the initial video source is from the at least one video input card.
5. A video processing apparatus, comprising:
the back plate is provided with a matrix switching module and an output connector connected with the matrix switching module;
the video output card is connected with the output connector;
wherein the video output card includes:
a backplane connector connected to the output connector;
a programmable logic device connected to the backplane connector, comprising:
a first group of scaling modules connected with the backplane connector;
the first superposition module is connected with the first group of zooming modules;
the second group of zooming modules are connected with the backplane connector;
the second superposition module is connected with the second group of zooming modules;
the first group of data interfaces are connected with the programmable logic device;
the second group of data interfaces are connected with the programmable logic device; wherein the programmable logic device is configured to perform the video processing method of any of claims 1-4.
6. A video processing method is applicable to a video processing device, wherein the video processing device comprises a first group of zooming modules, a second group of zooming modules, a third group of zooming modules, a first superposition module and a second superposition module, the first group of zooming modules is connected with the first superposition module, and the second group of zooming modules and the third group of zooming modules are connected with the second superposition module; the video processing method comprises the following steps:
in response to the current operating mode being the first operating mode:
receiving a plurality of input first video sources;
the first group of zooming modules zoom a first part of first video sources in the plurality of first video sources to obtain a zoomed first part of first video sources;
the first superposition module carries out superposition processing on the zoomed first part of the first video source to obtain a first superposition processing result, and the first superposition processing result is used as an on-broadcasting picture and is output to a first display screen through a first group of data interfaces to be displayed;
the second group of zooming modules zoom a second part of first video sources in the plurality of first video sources to obtain a zoomed second part of first video sources;
the second superposition module carries out superposition processing on the zoomed second part of the first video source to obtain a second superposition processing result, and the second superposition processing result is used as a pre-monitoring picture and is output to a second display screen through a pre-monitoring interface to be displayed; and
responding to an auxiliary display instruction, the third group of zooming modules zoom any one path of first video source in the plurality of first video sources to obtain a zoomed first video source, and the zoomed first video source is used as an auxiliary display picture and is output to a third display screen through a second group of data interfaces for picture display.
7. The video processing method of claim 6, further comprising:
in response to the current operating mode being the second operating mode:
receiving a plurality of input second video sources;
the first group of zooming modules zoom a first part of second video sources in the plurality of second video sources to obtain a zoomed first part of second video sources;
the first superposition module carries out superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and the third superposition processing result is output to the first display screen through the first group of data interfaces to be displayed;
the second group of zooming modules and the third group of zooming modules zoom a second part of second video sources in the plurality of second video sources to obtain a second part of second video sources after zooming;
and the second superposition module carries out superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and the fourth superposition processing result is output to the first display screen through the second group of data interfaces so as to be spliced and displayed with the third superposition processing result.
8. The video processing method of claim 6, further comprising:
in response to the current operating mode being the second operating mode:
receiving a plurality of input second video sources;
the first group of zooming modules zoom a first part of second video sources in the plurality of second video sources to obtain a zoomed first part of second video sources;
the first superposition module carries out superposition processing on the zoomed first part of the second video source to obtain a third superposition processing result, and the third superposition processing result is output to the first display screen through the first group of data interfaces to be displayed;
the second group of zooming modules zoom a second part of second video sources in the plurality of second video sources to obtain zoomed second part of second video sources;
the second superposition module carries out superposition processing on the zoomed second part of the second video source to obtain a fourth superposition processing result, and the fourth superposition processing result is output to the first display screen through the second group of data interfaces to be spliced and displayed with the third superposition processing result;
responding to a video source switching instruction, and determining an initial video source and a target video source corresponding to a to-be-switched zooming module in the second group of zooming modules;
selecting the target video source from the plurality of second video sources by the third group of zooming modules to perform zooming processing to obtain a zoomed target video source;
and the second superposition module covers the zoomed target video source with the initial video source corresponding to the zoom module to be switched, gradually reduces the transparency of the zoomed target video source, and switches the initial video source corresponding to the zoom module to be switched into the target video source.
9. The video processing method of claim 6, wherein the first group of scaling modules comprises a plurality of first scaling sub-modules, the second group of scaling modules comprises a plurality of second scaling sub-modules, the third group of scaling modules comprises a third scaling sub-module, the first group of data interfaces comprises a plurality of first data interfaces, and the second group of data interfaces comprises a plurality of second data interfaces.
10. A video processing apparatus, comprising:
a first programmable logic device comprising:
a first set of scaling modules;
the first superposition module is connected with the first group of zooming modules;
the first group of data interfaces are connected with the first superposition module of the first programmable logic device;
a second programmable logic device comprising:
a second set of scaling modules;
the second superposition module is connected with the second group of zooming modules;
the third group of zooming modules are connected with the second superposition module;
a second set of data interfaces connecting the second overlay module and the third set of scaling modules of the second programmable logic device;
the pre-monitoring interface is connected with the second superposition module of the second programmable logic device;
wherein the video processing device is configured to perform the video processing method according to any one of claims 6 to 9.
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