CN113596346B - Video processing method and video processing apparatus - Google Patents

Video processing method and video processing apparatus Download PDF

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Publication number
CN113596346B
CN113596346B CN202010364915.6A CN202010364915A CN113596346B CN 113596346 B CN113596346 B CN 113596346B CN 202010364915 A CN202010364915 A CN 202010364915A CN 113596346 B CN113596346 B CN 113596346B
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video
module
superposition
scaling
processing
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CN113596346A (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

Abstract

The embodiment of the invention discloses a video processing method and video processing equipment, wherein the video processing method comprises the following steps: scaling the first part of the first video source by a first group of scaling modules to obtain a scaled first part of the first video source; the first superposition module performs superposition processing on the scaled first part of the first video source to obtain a first superposition processing result and outputs and displays the first superposition processing result from a first group of data interfaces; scaling the second part of the first video source by a second group of scaling modules to obtain a scaled second part of the first video source; the second superposition module performs superposition processing on the scaled second part of the first video source to obtain a second superposition processing result and outputs and displays the second superposition processing result from the pre-monitoring interface; and the third group of scaling modules performs scaling processing on any one of the first video sources and outputs and displays the first video sources from the second group of data interfaces. The invention can avoid the problem of larger resource waste in the prior video processing equipment, and reasonably utilizes the residual resources in the prior video processing equipment.

Description

Video processing method and video processing apparatus
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 generated, and meanwhile, application occasions of the video processing devices are subdivided more clearly. The prior video processing equipment is more flexible and diversified in use, but the inside of the video processing equipment has larger 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 that the prior video processing equipment has larger resource waste inside and reasonably utilize the residual resources inside.
Specifically, in a first aspect, an embodiment of the present invention discloses a video processing method, which is applicable to a video processing device, where the video processing device includes a first set of scaling modules, a second set of scaling modules, a third set of scaling modules, a first stacking module, and a second stacking module, where the first set of scaling modules is connected to the first stacking module, and the second set of scaling modules and the third set of scaling modules are connected to the second stacking module; the video processing method comprises the following steps: responding to the current working mode as a first working mode: receiving a plurality of input first video sources; scaling a first part of the first video sources in the plurality of first video sources by the first group scaling module to obtain a scaled first part of the first video sources; the first superposition module performs superposition processing on the scaled first part of the first video sources to obtain a first superposition processing result, and outputs the first superposition processing result as an on-demand picture to a first display screen for picture display through a first group of data interfaces; scaling a second part of the first video sources in the plurality of first video sources by the second group of scaling modules to obtain a scaled second part of the first video sources; the second superposition module performs superposition processing on the scaled second part of the first video sources to obtain a second superposition processing result, and outputs the second superposition processing result as a pre-monitoring picture to a second display screen for picture display through a pre-monitoring interface; and responding to the auxiliary display instruction, performing scaling processing on any one of the plurality of first video sources by the third group scaling module to obtain a scaled first video source, and outputting the scaled first video source as an auxiliary display picture to a third display screen for picture display through a second group data interface.
The prior video processing device has larger resource waste inside, for example, the prior two-in-one video processing device comprises a switching platform mode and a splicer mode, wherein the scaling processing module inside the video processing device can completely perform video source scaling processing and output spliced pictures through corresponding data interfaces, only part of the scaling processing module inside the video processing device works in the switching platform mode, idle resources exist, waste of resources is caused, and auxiliary display functions such as a prompter and the like are not supported in the switching platform mode. In the video processing device disclosed by the embodiment of the invention, in a first working mode, a first group of scaling modules and a first superposition module are utilized to process a first part of first video sources in a plurality of first video sources to obtain an on-demand picture, the on-demand picture is output to a first display screen for display through a first group of data interfaces, a second group of scaling modules and a second superposition module are utilized to process a second part of video sources in the plurality of first video sources to obtain a pre-monitor picture, the pre-monitor picture is output to a second display screen for display through a pre-monitor interface, and a third group of scaling modules are utilized to scale any one of the plurality of first video sources and output and display through a second group of data interfaces, so that the problem of large resource waste in the prior video processing device is avoided, the resource utilization rate of the video processing device is improved, idle resources in the first working mode are reasonably utilized to realize an auxiliary display function, the display information in a switching mode is enriched, and two display modes of the pre-monitor picture display and the auxiliary picture display are realized, and the requirements of customers are met.
In one embodiment of the present invention, the video processing method further includes: and responding to the current working mode as a second working mode: receiving a plurality of input second video sources; scaling a first part of the second video sources in the plurality of second video sources by the first group of scaling modules to obtain a scaled first part of second video sources; the first superposition module performs superposition processing on the scaled first part of second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces; scaling a second part of the second video sources in the plurality of second video sources by the second group of scaling modules and the third group of scaling modules to obtain a scaled second part of the second video sources; and the second superposition module performs superposition processing on the scaled 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 so as to be spliced and displayed with the third superposition processing result.
In one embodiment of the present invention, further comprising: and responding to the current working mode as a second working mode: receiving a plurality of input second video sources; scaling a first part of the second video sources in the plurality of second video sources by the first group of scaling modules to obtain a scaled first part of second video sources; the first superposition module performs superposition processing on the scaled first part of second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces; scaling a second part of the second video sources in the plurality of second video sources by the second group scaling module to obtain a scaled second part of the second video sources; the second superposition module performs superposition processing on the scaled 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 so as 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 scaling module to be switched in the second group of scaling modules; selecting the target video source from the plurality of second video sources by the third group of scaling modules to perform scaling processing to obtain a scaled target video source; and the second superposition module covers the initial video source corresponding to the scaling module to be switched with the scaled target video source, gradually reduces the transparency of the scaled target video source, and switches the initial video source corresponding to the scaling module to be switched into the target video source.
In one embodiment of the invention, the first set of scaling modules comprises a plurality of first scaling sub-modules, the second set of scaling modules comprises a plurality of second scaling sub-modules, the third set of scaling modules comprises a third scaling sub-module, the first set of data interfaces comprises a plurality of first data interfaces, and the second set of data interfaces comprises 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 scaling modules; a first set of data interfaces connected to the first overlay 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 scaling modules; a third set of scaling modules connected to the second overlay 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 described above.
In a third aspect, an embodiment of the present invention discloses a video processing method, which is applicable to a video processing apparatus, where the video processing apparatus includes: the system comprises a first group of scaling modules, a second group of scaling modules, a first superposition module and a second superposition module, wherein the first group of scaling modules are connected with the first superposition module, and the second group of scaling 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 backboard; scaling the plurality of first video sources by the first group scaling module to obtain a plurality of scaled first video sources; the first superposition module is used for carrying out superposition processing on the plurality of scaled first video sources to obtain a pre-monitoring picture, and outputting the pre-monitoring picture to a first display screen for picture display through a first group of data interfaces; receiving a plurality of second video sources input by the back panel in response to an auxiliary display instruction; scaling the plurality of second video sources by the second group scaling module to obtain a plurality of scaled second video sources; and the second superposition module is used for carrying out superposition processing on the plurality of scaled second video sources to obtain an auxiliary display picture, and outputting the auxiliary display picture to a second display screen for picture display through a second group of data interfaces.
The prior video processing device has larger resource waste inside, for example, when the prior plug-in card type video processing device realizes the pre-monitoring function, the last video output card has idle resources, which causes the resource waste, and in certain large-scale cultural relics activities such as a concert or an important meeting, the function of a prompter is often needed, or the display content of a main meeting place is output to a separate meeting place for display, and then the prior plug-in card type video processing device does not support the auxiliary display function such as the prompter. The video processing method disclosed by the embodiment of the invention comprises the steps that the first group of scaling modules and the first superposition modules process a first video source to obtain a pre-monitor picture, the pre-monitor picture is output to the first display screen for picture display through the first group of data interfaces, the second group of scaling modules and the second superposition modules process a plurality of second video sources to obtain an auxiliary display picture in response to an auxiliary display instruction, the auxiliary display picture is output to the second display screen for picture display through the second group of data interfaces, the problem of large resource waste in the conventional video processing equipment is avoided, the resource utilization rate of the video processing equipment is improved, idle resources under the pre-monitor function are reasonably utilized, the auxiliary picture display function is realized, the display information of the video processing equipment is enriched, the two modes of pre-monitor picture display and auxiliary picture display can be realized, and the requirements of clients are met.
In one embodiment of the invention, the plurality of second video sources are from at least one video input card connected to the back plane, or from at least one second video output card connected to the back plane.
In one embodiment of the present invention, the second video output card includes: the system comprises a third group of scaling modules, a fourth group of scaling modules, a third superposition module, a fourth superposition 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 scaling modules are connected with the third superposition module, the fourth group of scaling modules are connected with the fourth superposition module, the selection module is connected with the third superposition module and the fourth superposition 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 configured to: receiving a plurality of input initial video sources; the third group of scaling modules performs scaling processing on a first part of initial video sources in the plurality of initial video sources to obtain a scaled first part of initial video sources; the third superposition module performs superposition processing on the scaled first part of initial video sources to obtain a third superposition processing result; scaling a second part of initial video sources in the plurality of initial video sources by the fourth group of scaling modules to obtain a scaled second part of initial video sources; the fourth superposition module performs superposition processing on the scaled 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-demand picture to be output to a target display screen through a target data interface for picture display; transmitting the on-air picture to the first monitoring processing module by the selection module in response to a first pre-monitoring instruction so that the on-air picture is processed by the first monitoring processing module and then output to a backboard as the first video source; in response to a second pre-monitoring instruction, the other of the third superposition processing result and the fourth superposition processing result is transmitted to the second monitoring processing module by the selection module as a pre-processing picture, so that the second monitoring processing module processes the pre-processing picture and then outputs the processed picture to the backboard as the first video source; transmitting the on-air picture to the first review processing module and/or the second review processing module by the selection module in response to the auxiliary display instruction, so that the on-air picture is scaled to a specified resolution by the first review module and/or the second review module and then output to the backboard as the second video source; 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 second review processing module and/or the first review processing module scales the preprocessed picture to the specified resolution and then outputs the scaled preprocessed picture 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 backboard is provided with a matrix exchange module and an output connector connected with the matrix exchange module; the video output card is connected with the output connector; wherein, the video output card includes: a back board connector connected with the output connector; a programmable logic device connected to the backplane connector, comprising: a first set of scaling modules connected to the backplane connector; the first superposition module is connected with the first group of scaling modules; a second set of scaling modules connected to the backplane connector; the second superposition module is connected with the second group of scaling modules; a first set of data interfaces coupled to the programmable logic device; a second set of data interfaces coupled to 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 large resource waste in 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, the two modes of pre-monitoring picture display and auxiliary picture display can be realized, and the requirements of customers are met.
Other aspects and features of the present invention will become apparent from the following detailed description, which refers to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for the 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 specific embodiments of the invention refers 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 a schematic diagram of another configuration 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 a schematic diagram showing another configuration of a video processing apparatus according to a third embodiment of the present invention.
Fig. 7 is a schematic diagram of 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.
[ reference numerals description ]
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 back board 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 back board 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: a video processing method.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.
In order that those skilled in the art will better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects 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 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 further noted that the division of the embodiments in the present invention is only for convenience of description, and should not be construed as a specific limitation, and features in the various embodiments may be combined and mutually referenced without contradiction.
[ first embodiment ]
In the prior art, a large resource waste exists in the video processing equipment, for example, the two-in-one video processing equipment comprises a switching platform mode and a splicer mode, and scaling processing modules in the two-in-one video processing equipment can all perform video source scaling processing and then output to corresponding superposition modules for superposition, and then output spliced pictures through corresponding data interfaces; however, only a part of the scaling processing module works in the switching platform mode, idle resources exist, waste of the internal resources is caused, and auxiliary display functions such as a prompter and the like are not supported in the switching platform mode.
To this end, a first embodiment of the present invention discloses a video processing apparatus, as shown in fig. 1, a video processing apparatus 10 of the present embodiment includes, for example: a programmable logic device 11, a first set of data interfaces 12, a programmable logic device 13, a second set of data interfaces 14, and a pre-monitor interface 15.
As shown in fig. 1, the programmable logic device 11 includes, for example: a first set of scaling modules 111 and a superposition module 112. The overlay module 112 is connected to the first set of scaling modules 111. The first set of data interfaces 12 is connected to the superposition module 112 of the programmable logic device 11. The programmable logic device 13 includes, for example: a second set of scaling modules 131, an overlay module 132, and a third set of scaling modules 133. The overlay module 132 is connected to the second set of scaling modules 131. The third set of scaling modules 133 is connected to the superposition module 132. The second set of data interfaces 14 connects the superposition module 132 and the third set of scaling modules 133 of the programmable logic device 13. The pre-monitor interface 15 is connected to the superposition module 132 of the programmable logic device 13.
The video processing device 10 comprises, for example, two modes of operation: a first operating mode, such as a switching station operating mode, and a second operating mode, such as a splicer operating mode.
Specifically, the video processing device 10 is configured to, for example, respond to the current operation mode being the first operation mode: receiving a plurality of input first video sources, performing scaling processing on a first part of first video sources in the plurality of first video sources by a first group scaling module 111 to obtain a scaled first part of first video sources, performing superposition processing on the scaled first part of first video sources by a superposition module 112 to obtain a first superposition processing result, and outputting the first superposition processing result as an on-air picture to a first display screen for picture display through a first group data interface 12; scaling a second part of the first video sources in the plurality of first video sources by a second group of scaling modules 131 to obtain a scaled second part of first video sources, superposing the scaled second part of the first video sources by a superposition module 132 to obtain a second superposition result, and outputting the second superposition result as a pre-monitor picture to a second display screen for picture display through a pre-monitor interface 15; and in response to the auxiliary display instruction, the third group scaling module 133 performs scaling processing on any one of the plurality of first video sources to obtain a scaled first video source, and outputs the scaled first video source as an auxiliary display picture to the third display screen for picture display via the second group data interface 14.
The first video sources are any combination of HDMI video sources, DVI video sources, DP video sources, SDI video sources, and the like, and include 16 video sources, for example. The first and second partial first video sources mentioned comprise for example all identical video sources or comprise partially identical video sources, for example the first partial first video source comprises for example 8 video sources, the second partial first video source comprises for example 14 video sources, wherein the 14 video sources comprise for example the same 8 video sources as the first partial first video source, although the second partial first video source may also comprise all first video sources. The first set of data interfaces 12 and the second set of data interfaces 14 are mentioned as comprising for example data interfaces of the same data, for example comprising for example two data interfaces, for example a digital video interface, a network interface or a fibre-optic interface, wherein the digital video interface for example comprises: HDMI interface, DP interface, SDI interface, DVI interface, and the like. The network port is, for example, a hundred mega network interface or a gigabit network interface. The optical fiber interface mentioned is, for example, a 10G optical fiber interface or a 20G optical fiber interface, etc. The mentioned pre-monitor interface 15 is for example a digital video interface, for example an HDMI interface. The first display screen, the second display screen and the third display screen are, for example, the same display screen, or different display screens, and some two display screens are the same display screen. For example, the first mentioned display screen is for example an LED display screen, the second mentioned display screen is for example a liquid crystal display screen, the third mentioned display screen is for example an LED display screen, the first display screen and the third display screen are for example the same LED display screen or different LED display screens.
Further, the video processing apparatus 10 may also operate in a second operation mode, i.e. a splicer mode, in which the first set of scaling modules 111, the second set of scaling modules 131, and the third set of scaling modules 133 within the video processing apparatus 10 may all operate to implement a 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 scaling processing on a first part of the second video sources in the plurality of second video sources by a first group scaling module 111 to obtain a scaled first part of the second video sources, performing superposition processing on the scaled first part of the second video sources by a superposition module 112 to obtain a third superposition processing result, and outputting the third superposition processing result to the first display screen for picture display by a first group data interface 12; and the second group of scaling modules 131 and the third group of scaling modules 133 perform scaling processing on a second part of second video sources in the plurality of second video sources to obtain a scaled second part of second video sources, the superposition module 132 performs superposition processing on the scaled second part of second video sources 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 14 to be spliced and displayed with the third superposition processing result.
The mentioned plurality of second video sources are any combination of HDMI video sources, DVI video sources, DP video sources, SDI video sources, and the like, and the plurality of second video sources includes 16 video sources, for example. The first and second partial second video sources mentioned comprise for example the same number of video sources and each video source is the same, for example the first partial second video source comprises for example 8 video sources and the second partial second video source comprises for example further 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 set of scaling processing modules 133 to realize a special effect of switching video sources 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; scaling a first part of the second video sources by the first group scaling module 111 to obtain a scaled first part of the second video sources; the superposition module 112 performs superposition processing on the scaled first part of the second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces 12; scaling a second part of the second video sources by a second group scaling module 131 to obtain a scaled second part of the second video sources; overlapping the scaled second part of the second video source by an overlapping module 132 to obtain a fourth overlapping result, and outputting the fourth overlapping result to the first display screen via a second group of data interfaces 14 to be spliced and displayed with the third overlapping result; in response to the video source switching instruction, determining an initial video source and a target video source corresponding to a scaling module to be switched in the second group of scaling modules 131; selecting the target video source from the plurality of second video sources by a third group of scaling modules 133 to perform scaling processing, so as to obtain a scaled target video source; the superposition module 132 covers the initial video source corresponding to the scaling module to be switched with the scaled target video source, gradually reduces the transparency of the scaled target video source, and switches the initial video source corresponding to the scaling module to be switched into the target video source.
It can be understood that, generally, the video source processed by the scaling module to be switched is located at the top layer of the display interface, when the video source is switched, after the third group scaling module 133 performs scaling processing on the target video source, the overlaying module 132 overlays the scaled target video source on the top layer to cover the initial video source output by the scaling module to be switched, at this time, the transparency of the scaled target video source is 100, and then the transparency of the scaled target video source is gradually reduced, that is, the fade-in special effect of the target video source is achieved, when the transparency of the scaled target video source is reduced to 0, the target video source is completely displayed, at this time, the initial video source in the scaling module to be switched is switched to the target video source, and then the third group scaling module 133 is turned off, so as to complete the switching of the video source.
Further, the first set of scaling modules 111 for example comprises a plurality of first scaling sub-modules, the second set of scaling modules 131 for example comprises a plurality of second scaling sub-modules, and the third set 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 limit of the pin resources of the limited programmable logic device 11 and the programmable logic device 13, the two programmable logic devices can be directly introduced into only half of the video sources through the internal bus, and the missing video sources are copied in real time with each other by using the GTX (Gigabit Transceiver ) technology, so that it is ensured that all the video sources can be taken by both the two programmable logic devices, and support is provided for realizing the dual mode of the video processing apparatus 10.
Specifically, as shown in fig. 2, programmable logic device 11 further includes, for example, video source sharing interface 113, and programmable logic device 13 further includes, for example, video source sharing interface 134. 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 may transmit a plurality of video sources simultaneously or sequentially, for example. Video source sharing interface 113 and video source sharing interface 134 employ, for example, GTX technology. The GTX (Gigabit Transceiver) technology is used for high-speed and real-time transmission of huge data in modern digital processing technology and computing technology, and can avoid the problems of low anti-interference capability, poor synchronization capability, low transmission rate, poor signal quality and the like in 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 further comprises, for example, a microcontroller 16 and a memory 17. Wherein 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.
In particular, the mentioned micro-controller is, for example, an MCU (Microcontroller Unit, micro-controller, also called as a single-chip microcomputer) or other micro-processor with a certain data processing and operation capability, such as an ARM processor, a DSP processor, etc. The mentioned memory includes, for example, a Flash memory Flash, EMMC (Embedded Multi Media Card) or the like nonvolatile memory.
A user is connected to the microcontroller 16, for example, via a network or a human-machine interaction interface such as a knob, a human-machine interaction display screen, or buttons, etc., to control the video processing device 10 for operation such as a switch of modes of operation. The microcontroller 16 can flexibly configure the operation modes of the programmable logic device 11 and the programmable logic device 13 according to the user's selection, and then read/write desired data from/from the memory 17 at high speed in different operation modes. The programmable logic device 11 and the programmable logic device 13 output the video source after performing the scaling superimposition processing according to the configuration of the microcontroller 16.
Specifically, the aforementioned programmable logic device 11 and programmable logic device 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 such as brightness, chromaticity, saturation, gamma adjustment, skin color compensation, color enhancement and the like, complete video enhancement processing functions such as image de-interlacing, stepless scaling and the like, and can realize image fusion functions such as PIP, image-text superposition and the like.
When the first set of data interfaces 12 and the second set 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, for example, 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 arranged between the optical fiber interface and the programmable logic device.
In summary, the video processing device disclosed in this embodiment avoids the problem that there is a large resource waste inside the existing video processing device, improves the resource utilization rate of the video processing device, reasonably utilizes the idle resources in the switching platform mode to realize the auxiliary display function, enriches the display information in the switching platform mode, can realize two display modes of pre-monitor screen display and auxiliary screen display, and meets the demands of clients.
[ 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 apparatus, where the video processing apparatus includes, for example, a first set of scaling modules, a second set of scaling modules, a third set of scaling modules, a first stacking module, and a second stacking module, where the first set of scaling modules is connected to the first stacking module, and the second set of scaling modules and the third set of scaling modules are connected to the second stacking module. As shown in fig. 3, the video processing method includes, for example:
Responding to the current working mode as a first working mode:
step S21: receiving a plurality of input first video sources;
step S22: scaling a first part of the first video sources in the plurality of first video sources by the first group scaling module to obtain a scaled first part of the first video sources;
step S23: the first superposition module performs superposition processing on the scaled first part of the first video sources to obtain a first superposition processing result, and outputs the first superposition processing result as an on-demand picture to a first display screen for picture display through a first group of data interfaces;
step S24: scaling a second part of the first video sources in the plurality of first video sources by the second group of scaling modules to obtain a scaled second part of the first video sources;
step S25: the second superposition module performs superposition processing on the scaled second part of the first video sources to obtain a second superposition processing result, and outputs the second superposition processing result as a pre-monitoring picture to a second display screen for picture display through a pre-monitoring interface; and
step S26: and responding to an auxiliary display instruction, performing scaling processing on any one of the plurality of first video sources by the third group scaling module to obtain a scaled first video source, and outputting the scaled first video source serving as an auxiliary display picture to a third display screen through a second group data interface for picture display.
Further, the video processing method disclosed in this embodiment further includes, for example: and responding to the current working mode as a second working mode: receiving a plurality of input second video sources; scaling a first part of the second video sources in the plurality of second video sources by the first group of scaling modules to obtain a scaled first part of second video sources; the first superposition module performs superposition processing on the scaled first part of second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces; scaling a second part of the second video sources in the plurality of second video sources by the second group of scaling modules and the third scaling module to obtain a scaled second part of the second video sources; and the second superposition module performs superposition processing on the scaled 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 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; scaling a first part of the second video sources in the plurality of second video sources by the first group of scaling modules to obtain a scaled first part of second video sources; the first superposition module performs superposition processing on the scaled first part of second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces; scaling a second part of the second video sources in the plurality of second video sources by the second group scaling module to obtain a scaled second part of the second video sources; the second superposition module performs superposition processing on the scaled 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 so as 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 scaling module to be switched in the second group of scaling modules; selecting the target video source from the plurality of second video sources by the third group of scaling modules to perform scaling processing to obtain a scaled target video source; and the second superposition module covers the initial video source corresponding to the scaling module to be switched with the scaled target video source, gradually reduces the transparency of the scaled target video source, and switches the initial video source corresponding to the scaling module to be switched into the target video source.
Further, the first set of scaling modules comprises a plurality of first scaling sub-modules, the second set of scaling modules comprises a plurality of second scaling sub-modules, the third set of scaling modules comprises a third scaling sub-module, the first set of data interfaces comprises a plurality of first data interfaces, and the second set of data interfaces comprises a plurality of second data interfaces.
It should be noted that, the video processing method disclosed in the present 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 relevant steps of the video processing apparatus disclosed in the first embodiment, which is not repeated herein for brevity, and the beneficial effects of the present embodiment are the same as those of the first embodiment.
[ third embodiment ]
In the prior art, a large resource waste exists in the video processing device, for example, when the plug-in card type video processing device realizes the pre-monitoring function, the last video output card has idle resources, which causes the resource waste, and in certain large-scale cultural relics 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 separate meeting place for display, and the conventional plug-in card type 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 back plate 31 and a video output card 32 connected to the back plate 31.
The back plate 31 is provided with, for example, a matrix switching module 311 and an output connector 312 connected to the matrix switching module 311. Video output card 32 is connected to output connector 312. The matrix switch module 311 includes, for example, a matrix switch chip, and the rectangular switch chip is, for example, a cross point switch chip. The output connector 312 is, for example, a pin header connector, for example, a simple ox horn pin header connector, for short, a "simple ox" connector, for example, composed of square plastic sockets and a plurality of square pins arranged in order. Of course, the output connector 312 may be a female connector, or other form of connector.
Specifically, as shown in fig. 5, the video output card 32 includes, for example: a backplane connector 321, a programmable logic device 322, a first set of data interfaces 323, and a second set of data interfaces 324. Wherein the back board 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 scaling modules 3221, overlay modules 3222, a second set of scaling modules 3223, and overlay modules 3224. The first set of scaling modules 3221 are connected to the backplane connector 321. The overlay module 3222 is connected to the first set of scaling modules 3221. The second set of scaling modules 3223 are connected to the backplane connector 321. The overlay module 3224 is connected to the second set of scaling modules 3223. The first set of data interfaces 323 connects the superposition modules 3222 of the programmable logic device 322. The second set of data interfaces 324 connects the overlay modules 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 back panel 31, perform scaling processing on the plurality of first video sources by using the first set of scaling modules 3221 to obtain a plurality of scaled first video sources, perform superposition processing on the plurality of scaled first video sources by using the superposition module 3222 to obtain a pre-monitor screen, and output the pre-monitor screen to the first display screen via the first set of data interfaces 323 for screen display; in response to the auxiliary display instruction, a plurality of second video sources input by the backboard 31 are received, the second video sources are scaled by the second group scaling module 3223 to obtain a plurality of scaled second video sources, the second video sources are superimposed by the superimposing module 3224 to obtain an auxiliary display screen, and the auxiliary display screen is output to the second display screen for screen display via the second group data interface 324.
The backplane connector 321 is matched with the output connector 312, such as a pin header connector or a socket header connector. The mentioned plurality of first video sources and the plurality of second video sources are for example any combination of HDMI video sources, DVI video sources, DP video sources, SDI video sources, etc., for example the mentioned plurality of first video sources comprises for example 8 video sources and the mentioned plurality of second video sources comprises for example 8 video sources. The first and second set of scaling modules 3221, 3223 are mentioned to include, for example, the same number of scaling modules, and the first and second set of scaling modules 3221, 3223 include, for example, 8 scaling modules. The first and second set of data interfaces 323, 324 comprise for example the same number of data interfaces, for example the first and second set of data interfaces 323, 324 comprise for example two data interfaces, for example digital video interfaces, network interfaces or fibre optic interfaces, wherein the digital video interfaces comprise for example: HDMI interface, DP interface, SDI interface, DVI interface, and the like. The network port is, for example, a hundred meganetwork port or a gigabit network port. The optical fiber interface mentioned 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, at least one output connector 313 connected to the matrix switching module 311 is disposed on the back plate 31, and at least one video output card 33 is correspondingly connected to at least one output connector 313, and only one video output card 33 and one output connector 313 are shown in fig. 6, but the embodiment is not limited thereto. Wherein the aforementioned plurality of second video sources is derived, for example, from at least one video output card 33.
Further, as shown in fig. 7, the video output card 33 includes, for example: a backplane connector 331, a programmable logic device 332, and a target data interface 333. The programmable logic device 332 includes, for example, a third set of scaling modules 3321, a fourth set of scaling modules 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 set of scaling modules 3321 connects the overlay module 3322, the fourth set of scaling modules 3323 connects the overlay module 3324, the selection module 3325 connects 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 all connect the selection module 3325.
Specifically, the video output card 33 is configured to receive multiple input initial video sources, perform scaling processing on a first portion of the multiple initial video sources by using a third set of scaling modules 3321 to obtain a scaled first portion of initial video sources, perform overlaying processing on the scaled first portion of initial video sources by using an overlaying module 3322 to obtain a third overlaying processing result, perform scaling processing on a second portion of the multiple initial video sources by using a fourth set of scaling modules 3323 to obtain a scaled second portion of initial video sources, perform overlaying processing on the scaled second portion of initial video sources by using an overlaying module 3324 to obtain a fourth overlaying processing result, and output one of the third overlaying processing result and the fourth overlaying processing result as an on-air picture to a target display screen via a target data interface 333 by using a selection module 3325 for displaying the picture; transmitting, by the selection module 3325, the on-air picture to the monitor processing module 3326 to be processed by the monitor processing module 3326 and then output to the back panel 31 as the aforementioned first video source in response to the first pre-monitor instruction, and transmitting, by the selection module 3325, the other of the third superposition processing result and the fourth superposition processing result to the monitor processing module 3327 to be processed by the monitor processing module 3327 and then output to the back panel 31 as the aforementioned first video source in response to the second pre-monitor instruction; in response to the auxiliary display instruction, the on-air picture is transmitted to the review processing module 3328 and/or the review processing module 3329 by the selection module 3325 to be output to the back panel 31 as the aforementioned second video source after being scaled to the specified resolution by the review module 3328 and/or the review module 3329, or in response to the auxiliary display instruction, the pre-processed picture is transmitted to the review processing module 3329 and/or the review processing module 3328 by the selection module 3325 to be output to the back panel 31 as the aforementioned second video source after being scaled to the specified resolution by the review processing module 3329 and/or the review processing module 3328.
The plurality of initial video sources include any combination of HDMI video sources, DVI video sources, DP video sources, SDI video sources, and the like, for example, and the plurality of initial video sources includes 16 DVI video sources, for example. The first part of the initial video source and the second part of the initial video source are mentioned to comprise for example the same number of video sources, for example the first part of the initial video source comprises for example 8 video sources and the second part of the initial video source comprises for example 8 video sources. The third and fourth set of scaling modules 3321, 3323 mentioned include, for example, the same number of scaling modules, and the third and fourth set of scaling modules 3321, 3323 include, for example, 8 scaling modules. The target data interface 333 is, for example, a digital video interface, for example, an HDMI interface, a DVI interface, or an SDI interface, and the target data interface 333 may be, of course, a network port or an optical fiber interface, where the network port is, for example, a hundred meganetwork port or a gigabit network port, and the optical fiber interface is, for example, a 10G optical fiber interface or a 20G optical fiber interface. 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 disposed between the HDMI interface and the programmable logic device 332, and when the target data interface is a gigabit network interface, for example, a gigabit network interface, a gigabit network PHY chip is further disposed 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 disposed between the optical fiber interface and the programmable logic device 332.
The target display screen mentioned 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 a portal is typically provided on the receiving card for connecting with the video processing apparatus 30 through a transmitting card or directly with the video processing apparatus 30. The LED display screen is formed by splicing a plurality of LED boxes, and typically, each LED box is provided with a receiving card.
Further, as shown in fig. 6, the video processing device 30 further includes at least one video input card 34, at least one input connector 314 connected to the matrix switch module 311 is disposed on the back board 31, and at least one video input card 34 is correspondingly connected to at least one input connector 314, and only one video input card 34 and one input connector 314 are shown in fig. 6, but the invention is not limited thereto. Wherein the aforementioned plurality of second video sources is derived, for example, from at least one video input card 34. That is, for video output card 32, the second video source that it receives from the backplane may be from video input card 34 or from video output card 33. Of course, the video output card 32 receiving the first video source 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, identical, that is, the selection module connected to the superimposing module and the monitor processing module and the review processing module connected to the selection module are also disposed inside the programmable logic device 322 of the video output card 32, and only when the video output card 32 responds to the pre-monitor instruction or the auxiliary display instruction, it does not perform a similar operation as the video output card 33. The related operation of the video processing apparatus 30 for video source pre-monitoring in response to the pre-monitoring instruction is 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 with the programmable logic device, a memory connected with the microcontroller, and the like.
The mentioned microcontroller is MCU, also called single-chip microcomputer or single-chip microcomputer; or other microprocessors having some data processing and computing capabilities, such as ARM processors and DSP processors. The programmable logic device mentioned is for example an FPGA or other similar logic device. The memory mentioned is, for example, a Flash memory Flash, or a nonvolatile memory such as EMMC (Embedded Multi Media Card).
In summary, the video processing device disclosed by the embodiment of the invention can avoid the problem of larger resource waste in the existing video processing device, improve the resource utilization rate of the video processing device, reasonably utilize idle resources under the pre-monitoring function, realize the auxiliary picture display function, enrich the display information of the video processing device, realize two modes of pre-monitoring picture display and auxiliary picture display, and meet the demands of customers.
[ fourth embodiment ]
Referring to fig. 8, a fourth embodiment of the present invention discloses a video processing method, which is suitable for a video processing apparatus, where the video processing apparatus includes, for example, a first set of scaling modules, a second set of scaling modules, a first stacking module, and a second stacking module, where the first set of scaling modules is connected to the first stacking module, and the second set of scaling modules is connected to the second stacking 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 backboard;
step S42: scaling the plurality of first video sources by the first group scaling module to obtain a plurality of scaled first video sources;
Step S43: the first superposition module is used for carrying out superposition processing on the plurality of scaled first video sources to obtain a pre-monitoring picture, and outputting the pre-monitoring picture to a first display screen for picture display through a first group of data interfaces;
step S44: receiving a plurality of second video sources input by the back panel in response to an auxiliary display instruction;
step S45: scaling the plurality of second video sources by the second group scaling module to obtain a plurality of scaled second video sources;
step S46: and the second superposition module is used for carrying out superposition processing on the plurality of scaled second video sources to obtain an auxiliary display picture, and outputting the auxiliary display picture to a second display screen for picture display through a second group of data interfaces.
Further, the aforementioned plurality of second video sources may be derived, for example, from at least one video input card connected to the back plane, or from at least one second video output card connected to the back plane.
Further, the aforementioned second video output card includes, for example: the system comprises a third group of scaling modules, a fourth group of scaling modules, a third superposition module, a fourth superposition 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 scaling modules are connected with the third superposition module, the fourth group of scaling modules are connected with the fourth superposition module, the selection module is connected with the third superposition module and the fourth superposition 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 for: receiving a plurality of input initial video sources; the third group of scaling modules performs scaling processing on a first part of initial video sources in the plurality of initial video sources to obtain a scaled first part of initial video sources; the third superposition module performs superposition processing on the scaled first part of initial video sources to obtain a third superposition processing result; scaling a second part of initial video sources in the plurality of initial video sources by the fourth group of scaling modules to obtain a scaled second part of initial video sources; the fourth superposition module performs superposition processing on the scaled 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-demand picture to be output to a target display screen through a target data interface for picture display; transmitting the on-air picture to the first monitoring processing module by the selection module in response to a first pre-monitoring instruction so that the on-air picture is processed by the first monitoring processing module and then output to the backboard as the first video source; in response to a second pre-monitoring instruction, the other of the third superposition processing result and the fourth superposition processing result is transmitted to the second monitoring processing module by the selection module as a pre-processing picture, so that the second monitoring processing module processes the pre-processing picture and then outputs the processed picture to the backboard as the first video source; transmitting the on-air picture to the first review processing module and/or the second review processing module by the selection module in response to the auxiliary display instruction, so that the on-air picture is scaled to a specified resolution by the first review module and/or the second review module and then output to the backboard as the second video source; 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 second review processing module and/or the first review processing module scales the preprocessed picture to the specified resolution and then outputs the scaled preprocessed picture to the backboard as the second video source.
Further, the aforementioned initial video source is derived, for example, from the at least one video input card.
It should be noted that, the video processing method disclosed in the present 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 relevant steps of the video processing apparatus disclosed in the third embodiment, which is not repeated herein for brevity, and the beneficial effects of the present embodiment are the same as those of the third embodiment.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present invention.

Claims (10)

1. The video processing method is characterized by being applicable to video processing equipment, wherein the video processing equipment comprises a first working mode, the first working mode is a switching platform mode, and the video processing equipment further comprises: the system comprises a first group of scaling modules, a second group of scaling modules, a first superposition module and a second superposition module, wherein the first group of scaling modules are connected with the first superposition module, and the second group of scaling 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 backboard;
scaling the plurality of first video sources by the first group scaling module to obtain a plurality of scaled first video sources;
the first superposition module is used for carrying out superposition processing on the plurality of scaled first video sources to obtain a pre-monitoring picture, and outputting the pre-monitoring picture to a first display screen for picture display through a first group of data interfaces;
receiving a plurality of second video sources input by the back panel in response to an auxiliary display instruction;
scaling the plurality of second video sources by the second group scaling module to obtain a plurality of scaled second video sources;
and the second superposition module is used for carrying out superposition processing on the plurality of scaled second video sources to obtain an auxiliary display picture, and outputting the auxiliary display picture to a second display screen for picture display through a second group of data interfaces.
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 scaling modules, a fourth group of scaling modules, a third superposition module, a fourth superposition 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 scaling modules are connected with the third superposition module, the fourth group of scaling modules are connected with the fourth superposition module, the selection module is connected with the third superposition module and the fourth superposition 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 configured to:
receiving a plurality of input initial video sources;
the third group of scaling modules performs scaling processing on a first part of initial video sources in the plurality of initial video sources to obtain a scaled first part of initial video sources;
the third superposition module performs superposition processing on the scaled first part of initial video sources to obtain a third superposition processing result;
Scaling a second part of initial video sources in the plurality of initial video sources by the fourth group of scaling modules to obtain a scaled second part of initial video sources;
the fourth superposition module performs superposition processing on the scaled second part of initial video sources to obtain a fourth superposition processing result; and
the selection module outputs one of the third superposition processing result and the fourth superposition processing result to a target display screen through a target data interface as an on-air picture for picture display;
transmitting the on-air picture to the first monitoring processing module by the selection module in response to a first pre-monitoring instruction so that the on-air picture is processed by the first monitoring processing module and then output to the backboard as the first video source;
in response to a second pre-monitoring instruction, the other of the third superposition processing result and the fourth superposition processing result is transmitted to the second monitoring processing module by the selection module as a pre-processing picture, so that the second monitoring processing module processes the pre-processing picture and then outputs the processed picture to the backboard as the first video source;
Transmitting the on-air picture to the first review processing module and/or the second review processing module by the selection module in response to the auxiliary display instruction, so that the on-air picture is scaled to a specified resolution by the first review processing module and/or the second review processing module and then output to the backboard as the second video source; or alternatively
And 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 second review processing module and/or the first review processing module scales the preprocessed picture to the specified resolution and then outputs the scaled preprocessed picture to the backboard as the second video source.
4. A video processing method according to claim 3, wherein the initial video source is from the at least one video input card.
5. A video processing apparatus, comprising:
the backboard is provided with a matrix exchange module and an output connector connected with the matrix exchange module;
the video output card is connected with the output connector;
wherein, the video output card includes:
A back board connector connected with the output connector;
a programmable logic device connected to the backplane connector, comprising:
a first set of scaling modules connected to the backplane connector;
the first superposition module is connected with the first group of scaling modules;
a second set of scaling modules connected to the backplane connector;
the second superposition module is connected with the second group of scaling modules;
a first set of data interfaces coupled to the programmable logic device;
a second set of data interfaces coupled to the programmable logic device;
wherein the programmable logic device is configured to perform the video processing method of any of claims 1-4.
6. The video processing method is characterized by being applied to video processing equipment, wherein the video processing equipment comprises a first group of scaling modules, a second group of scaling modules, a third group of scaling modules, a first superposition module and a second superposition module, the first group of scaling modules are connected with the first superposition module, and the second group of scaling modules and the third group of scaling modules are connected with the second superposition module; the video processing method comprises the following steps:
responding to the current working mode as a first working mode:
Receiving a plurality of input first video sources;
scaling a first part of the first video sources in the plurality of first video sources by the first group scaling module to obtain a scaled first part of the first video sources;
the first superposition module performs superposition processing on the scaled first part of the first video sources to obtain a first superposition processing result, and outputs the first superposition processing result as an on-demand picture to a first display screen for picture display through a first group of data interfaces;
scaling a second part of the first video sources in the plurality of first video sources by the second group of scaling modules to obtain a scaled second part of the first video sources;
the second superposition module performs superposition processing on the scaled second part of the first video sources to obtain a second superposition processing result, and outputs the second superposition processing result as a pre-monitoring picture to a second display screen for picture display through a pre-monitoring interface; and
and responding to an auxiliary display instruction, performing scaling processing on any one of the plurality of first video sources by the third group scaling module to obtain a scaled first video source, and outputting the scaled first video source serving as an auxiliary display picture to a third display screen through a second group data interface for picture display.
7. The video processing method according to claim 6, further comprising:
and responding to the current working mode as a second working mode:
receiving a plurality of input second video sources;
scaling a first part of the second video sources in the plurality of second video sources by the first group of scaling modules to obtain a scaled first part of second video sources;
the first superposition module performs superposition processing on the scaled first part of second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces;
scaling a second part of the second video sources in the plurality of second video sources by the second group of scaling modules and the third group of scaling modules to obtain a scaled second part of the second video sources;
and the second superposition module performs superposition processing on the scaled 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 so as to be spliced and displayed with the third superposition processing result.
8. The video processing method according to claim 6, further comprising:
and responding to the current working mode as a second working mode:
receiving a plurality of input second video sources;
scaling a first part of the second video sources in the plurality of second video sources by the first group of scaling modules to obtain a scaled first part of second video sources;
the first superposition module performs superposition processing on the scaled first part of second video sources to obtain a third superposition processing result, and outputs the third superposition processing result to the first display screen for picture display through the first group of data interfaces;
scaling a second part of the second video sources in the plurality of second video sources by the second group scaling module to obtain a scaled second part of the second video sources;
the second superposition module performs superposition processing on the scaled 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 so as 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 scaling module to be switched in the second group of scaling modules;
Selecting the target video source from the plurality of second video sources by the third group of scaling modules to perform scaling processing to obtain a scaled target video source;
and the second superposition module covers the initial video source corresponding to the scaling module to be switched with the scaled target video source, gradually reduces the transparency of the scaled target video source, and switches the initial video source corresponding to the scaling module to be switched into the target video source.
9. The video processing method of claim 6, wherein the first set of scaling modules comprises a plurality of first scaling sub-modules, the second set of scaling modules comprises a plurality of second scaling sub-modules, the third set of scaling modules comprises a third scaling sub-module, the first set of data interfaces comprises a plurality of first data interfaces, and the second set 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 scaling modules;
a first set of data interfaces connected to the first overlay 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 scaling modules;
a third set of scaling modules connected to the second overlay 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 of claims 6-9.
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