CN112567735A - Multi-video signal pre-monitoring method and multi-video signal pre-monitoring system - Google Patents
Multi-video signal pre-monitoring method and multi-video signal pre-monitoring system Download PDFInfo
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Abstract
The embodiment of the application discloses a multi-video signal pre-monitoring method, which comprises the following steps: obtaining a plurality of input video signal materials from a plurality of video signal sources, and carrying out video processing on the plurality of input video signal materials to obtain a plurality of output video signal materials; calculating the layout parameters of the multi-video signal pre-monitoring picture according to the layout parameters of the selected multi-video signal pre-monitoring template, the resolution of the pre-monitoring display, and the attribute information of a plurality of input and output video signal materials; and integrating the input video signal materials and the output video signal materials according to the layout parameters of the multi-video signal pre-monitoring picture to obtain the multi-video signal pre-monitoring picture which is output through a single monitoring video output interface. The embodiment of the application also discloses a multi-video signal pre-monitoring system.
Description
The present application relates to the field of video surveillance technologies, and in particular, to a multi-video signal pre-monitoring method and a multi-video signal pre-monitoring system.
With the development of video processing technology, the input and output of video processing equipment are more and more. The operator generally needs to monitor the current video input and output status through the monitoring picture to complete the operation of the device. Therefore, the video monitoring function of the video processing device plays an important role, and the usability of the part of the function has a great influence on the user experience. Therefore, the multi-picture pre-Monitoring (MVR) technology is developed, the current output picture, the preview output picture and/or the input picture can be displayed in one multi-video signal pre-monitoring picture at the same time, and the on-site equipment operator can master the on-site video signal processing state globally through the multi-video signal pre-monitoring picture, so that the usability of the equipment is greatly improved.
However, most current video processing devices provide only a single surveillance video output interface over which surveillance of incoming or outgoing video images is provided. The pre-monitoring picture output by the single monitoring video output interface is single, the simultaneous display of input and output video images cannot be realized, and meanwhile, the layout mode of the pre-monitoring picture is fixed, and the pre-monitoring pictures with various layouts cannot be flexibly switched. A single monitoring screen may not be sufficient for field applications. Therefore, how to perform centralized monitoring on input and output video signals on a single monitoring video output interface, provide multiple multi-video signal pre-monitoring picture layout modes, and implement flexible switching between the layout modes is a problem to be solved at present.
Disclosure of Invention
The embodiment of the application provides a multi-video signal pre-monitoring method and a multi-video signal pre-monitoring system, which can realize centralized monitoring of input and output videos of video processing equipment on a single video output interface, and can realize flexible switching of layout modes of multiple multi-video signal pre-monitoring pictures, so that the multi-video signal pre-monitoring picture effects are more flexible and diversified.
In one aspect, a method for pre-monitoring multiple video signals provided in an embodiment of the present application includes: obtaining a plurality of input video signal materials from a plurality of video signal sources, and carrying out video processing on the plurality of input video signal materials to obtain a plurality of output video signal materials; providing a selected multi-video signal pre-monitoring template and a pre-monitoring display; calculating layout parameters of a multi-video signal pre-monitoring picture according to the layout parameters of the selected multi-video signal pre-monitoring template, the resolution of the pre-monitoring display, the attribute information of the input video signal materials and the attribute information of the output video signal materials; integrating the input video signal materials and the output video signal materials according to the layout parameters of the multi-video signal pre-monitoring picture to obtain a multi-video signal pre-monitoring picture; outputting the multi-video signal pre-monitoring picture to the pre-monitoring display through a single monitoring video output interface for displaying; wherein the layout parameters of the selected multi-video signal pre-monitoring template include: pre-monitoring template window parameters, signal sources corresponding to the pre-monitoring template windows and pre-monitoring template line parameters; the pre-monitoring template window parameters comprise: the method comprises the following steps of (1) pre-monitoring a template window starting point coordinate, a pre-monitoring template window height and a pre-monitoring template window width; the pre-monitoring template line parameters comprise: pre-monitoring template line starting point coordinates, pre-monitoring template line length and pre-monitoring template line width; the coordinates of the starting point of the pre-monitoring template window, the height of the pre-monitoring template window, the width of the pre-monitoring template window, the coordinates of the starting point of the lines of the pre-monitoring template and the length of the lines of the pre-monitoring template are relative parameters respectively; the line width of the pre-monitoring template is an absolute parameter; the multi-video signal pre-monitoring method further comprises the following steps: selecting one multi-video signal pre-monitoring template from a plurality of multi-video signal pre-monitoring templates as the selected multi-video signal pre-monitoring template.
On the other hand, the method for pre-monitoring multiple video signals provided by the embodiment of the application comprises the following steps: obtaining a plurality of input video signal materials from a plurality of video signal sources, and carrying out video processing on the plurality of input video signal materials to obtain a plurality of output video signal materials; providing a selected multi-video signal pre-monitoring template and a pre-monitoring display; calculating layout parameters of a multi-video signal pre-monitoring picture according to the layout parameters of the selected multi-video signal pre-monitoring template, the resolution of the pre-monitoring display, the attribute information of the input video signal materials and the attribute information of the output video signal materials; integrating the input video signal materials and the output video signal materials according to the layout parameters of the multi-video signal pre-monitoring picture to obtain a multi-video signal pre-monitoring picture; and outputting the multi-video signal pre-monitoring picture to the pre-monitoring display through a single monitoring video output interface for displaying.
In the prior art, a single monitoring video output interface provided by a video processing device can only monitor input or output video images, so that a pre-monitoring picture output by the single monitoring video output interface is single, the simultaneous display of the input and output video images cannot be realized, and meanwhile, the layout mode of the pre-monitoring picture is fixed, and the pre-monitoring pictures with various layouts cannot be flexibly switched. According to the embodiment of the application, a plurality of input video signal materials and a plurality of output video signal materials are integrated by calling a selected multi-video signal pre-monitoring template to obtain a multi-video signal pre-monitoring picture, the multi-video signal pre-monitoring picture is output through a single monitoring video output interface and displayed on a pre-monitoring display, and the input, the output and the pre-output video centralized monitoring of video processing equipment can be realized on the single video output interface by selecting different multi-video signal pre-monitoring templates as the selected multi-video signal pre-monitoring template, the layout modes of the multi-video signal pre-monitoring pictures can be flexibly switched, so that the multi-video signal pre-monitoring picture effects are more flexible and diversified.
In one embodiment of the present application, said inputting a plurality of video signal sources to obtain a plurality of input video signal materials comprises: splitting part or all of the video signal sources to obtain a plurality of sub video signal sources; the plurality of input video signal material comprises: and the plurality of sub video signal sources and the video signal source which is not subjected to the splitting processing in the plurality of video signal sources.
In one embodiment of the present application, the layout parameters of the selected multi-video signal pre-monitoring template include: the method comprises the steps of pre-monitoring template window parameters, pre-monitoring template window corresponding signal sources and pre-monitoring template line parameters.
In an embodiment of the present application, the pre-monitoring template window parameters include: the method comprises the following steps of (1) pre-monitoring a template window starting point coordinate, a pre-monitoring template window height and a pre-monitoring template window width; the pre-monitoring template line parameters comprise: the method comprises the steps of pre-monitoring template line starting point coordinates, pre-monitoring template line length and pre-monitoring template line width.
In an embodiment of the present application, the coordinates of the starting point of the pre-monitoring template window, the height of the pre-monitoring template window, the width of the pre-monitoring template window, the coordinates of the starting point of the pre-monitoring template line, and the length of the pre-monitoring template line are relative parameters, respectively; the width of the pre-monitoring template line is an absolute parameter.
In one embodiment of the present application, the multi-video signal pre-monitoring picture includes: at least one of the input video signal material and/or at least one of the output video signal material.
In an embodiment of the present application, the calculating the layout parameters of the multi-video signal pre-monitored picture according to the layout parameters of the selected multi-video signal pre-monitored template, the resolution of the pre-monitored display, the attribute information of the input video signal materials, and the attribute information of the output video signal materials includes: responding to the selection operation of a user, and selecting a multi-video signal pre-monitoring template to obtain the layout parameters of the selected multi-video signal pre-monitoring template; calculating to obtain the resolution ratio corresponding to each window in the multi-video signal pre-monitoring template according to the resolution ratio of the pre-monitoring display and the layout parameters of the selected multi-video signal pre-monitoring template; calculating scaling parameters respectively corresponding to the plurality of input video signal materials and the plurality of output video signal materials according to the attribute information of the plurality of input video signal materials, the resolution sizes of windows in the multi-video signal pre-monitoring template respectively corresponding to the plurality of input video signal materials, the attribute information of the plurality of output video signal materials and the resolution sizes of windows in the multi-video signal pre-monitoring template respectively corresponding to the plurality of output video signal materials; and taking the scaling parameter and the pre-monitoring template window starting point coordinate corresponding to each input video signal material and each output video signal material as the layout parameter of the multi-video signal pre-monitoring picture.
In another aspect, an embodiment of the present application provides a multi-video signal pre-monitoring system, including: a video processing apparatus comprising a single surveillance video output interface, the video processing apparatus being configured to perform the multi-video signal pre-surveillance method according to any of the preceding embodiments to obtain the multi-video signal pre-surveillance picture and output the multi-video signal pre-surveillance picture through the single surveillance video output interface; and the pre-monitoring display is used for receiving and displaying the multi-video signal pre-monitoring picture output by the single monitoring video output interface.
In one embodiment of the present application, the plurality of video signal pre-monitoring templates are pre-stored in the video processing apparatus.
In yet another aspect, an embodiment of the present application provides a computer-readable medium, which stores computer-readable instructions, where the computer-readable instructions include instructions for executing the multi-video signal pre-monitoring method according to any one of the foregoing descriptions.
The above technical solution may have one or more of the following advantages: the method comprises the steps of obtaining a multi-video signal pre-monitoring picture by calling a selected multi-video signal pre-monitoring template to integrate a plurality of input video signal materials and a plurality of output video signal materials, outputting the multi-video signal pre-monitoring picture to a pre-monitoring display through a single monitoring video output interface to be displayed, and selecting different multi-video signal pre-monitoring templates as the selected multi-video signal pre-monitoring template, so that the centralized monitoring of input, output and pre-output videos of video processing equipment can be realized on the single video output interface, the flexible switching of the layout modes of the multi-video signal pre-monitoring picture can be realized, and the multi-video signal pre-monitoring picture is more flexible and diversified in effect.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1A is a schematic flowchart illustrating a method for pre-monitoring multiple video signals according to an embodiment of the present application;
fig. 1B is a schematic flowchart illustrating a method for pre-monitoring multiple video signals to obtain multiple output video signal materials according to an embodiment of the present application;
fig. 1C is a schematic flowchart illustrating a method for multi-video signal pre-monitoring to obtain a multi-video signal pre-monitoring picture according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a multi-video signal pre-monitoring system according to another embodiment of the present application;
FIGS. 3A-3F are schematic layout diagrams of a portion of a multi-video signal pre-monitoring template in an embodiment of the present application;
FIG. 4 is a detailed diagram of the multi-video signal pre-monitoring template shown in FIG. 3F;
FIGS. 5A-5C are schematic diagrams illustrating the pre-monitoring effect of the multi-video signal pre-monitoring template shown in FIGS. 3A-3C;
fig. 6 is a schematic structural diagram of a computer-readable medium according to yet another embodiment of the present application.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
As shown in fig. 1A, a method 10 for pre-monitoring multiple video signals is provided according to an embodiment of the present application. The method comprises the following steps:
step S11: a plurality of video signal sources are input to obtain a plurality of input video signal materials. The input video signal materials, namely the input video signal sources, are used as material sources of a multi-video signal pre-monitoring picture to be generated subsequently.
Step S13: and carrying out video processing on the input video signal materials to obtain output video signal materials. The output video signal materials, that is, the output video signals obtained by performing video processing on the input video signal materials (the input video signal sources), are used as material sources of a multi-video signal pre-monitored picture to be generated subsequently.
Step S15: and integrating the plurality of input video signal materials and the plurality of output video signal materials based on the selected multi-video signal pre-monitoring template and the resolution of the pre-monitoring display to obtain a multi-video signal pre-monitoring picture.
Step S17: and outputting the multi-video signal pre-monitoring picture to the pre-monitoring display through a single monitoring video output interface for displaying.
Specifically, the multi-video signal pre-monitor picture includes at least one of the input video signal material and the output video signal material, for example, that is, the video signal material in the multi-video signal pre-monitor picture is selected from any one of the input video signal materials and the output video signal materials or any one of the output video signal materials. Of course, for the purpose of implementing centralized monitoring of input and output videos of the video processing apparatus on a single video output interface, optionally, the multi-video signal pre-monitoring screen includes: at least one of the input video signal material and at least one of the output video signal material, i.e., the video signal material in the multi-video signal pre-monitor picture, includes at least one of the input video signal material and the output video signal material. All of the video signal material of the plurality of input video signal material and the plurality of output video signal material are typically integrated onto the multi-video signal pre-monitor picture for overall monitoring of the input video signal and the output video signal. Of course, in other embodiments, the multi-video signal pre-monitor picture may also include only the input video signal material or only the output video signal material, and of course, when the multi-video signal pre-monitor picture includes only the input video signal material, the number of the input video signal material may be one or more; when the multi-video signal pre-monitor picture includes only the output video signal material, the number of the output video signal material may also be one or more.
Specifically, step S11 includes, for example: splitting part or all of the video signal sources to obtain a plurality of sub video signal sources; at this time, the plurality of input video signal materials include: and the plurality of sub video signal sources and the video signal source which is not subjected to the splitting processing in the plurality of video signal sources. Of course, in some other embodiments, step S11 may not include the aforementioned step of splitting some or all of the plurality of video signal sources to obtain a plurality of sub video signal sources, where the plurality of input video signal materials include the plurality of video signal sources. That is, in some embodiments, some splitting processes may be performed on the plurality of video signal sources before performing step S13; in other embodiments, the splitting process may not be performed, but may be directly regarded as the video signal material of the multi-video signal pre-monitor picture.
The following describes the execution of steps S11 and S13 by taking fig. 1B as an example, and as can be seen from fig. 1B, the number of input video signal sources in the figure is two, which are respectively the input video signal source input for displaying capital letter a and the input video signal source input for displaying capital letter B. Executing step S11, splitting the input video signal sources from two input video signal sources into two left and right parts, for example, as shown in fig. 1B, i.e. obtaining two sub video signal sources input video 1 and input video 2; no splitting treatment is performed on INPUTB. At this time, the obtained plurality of video signal materials include in this example: INPUTA1, INPUTA2 and INPUTB. Then, step S13 is executed to perform video processing on the input video signal materials, i.e., input 1, input 2 and input, in this example, such as extending the picture size of input 1 to the left to obtain OUTPUT video signal material OUTPUT1, combining input 1 and the reduced input to expand the picture size to the right to obtain OUTPUT video signal material OUTPUT2, and extending the picture size of input to the right to obtain OUTPUT video signal material OUTPUT3, i.e., in this example, OUTPUT1, OUTPUT2 and OUTPUT3, which are finally obtained in step S13. The plurality of input video signal material and the plurality of output video signal material together constitute video signal material of the subsequently generated multi-video signal pre-monitored picture. Step S15 includes, for example: acquiring layout parameters of the selected multi-video signal pre-monitoring template; calculating layout parameters of the multi-video signal pre-monitoring picture based on the attribute information of the input video signal materials, the attribute information of the output video signal materials, the layout parameters of the selected multi-video signal pre-monitoring template and the resolution of the pre-monitoring display; and performing the integration processing on the plurality of input video signal materials and the plurality of output video signal materials based on the layout parameters of the multi-video signal pre-monitoring picture to obtain the multi-video signal pre-monitoring picture.
Specifically, the layout parameters of the selected multi-video signal pre-monitoring template used in step S15 include, for example: the method comprises the steps of pre-monitoring template window parameters, pre-monitoring template window corresponding signal sources and pre-monitoring template line parameters. The attribute information of the plurality of input video signal materials is, for example, a resolution size of each input video signal material, and the attribute information of the plurality of output video signal materials is, for example, a resolution size of each output video signal material.
Wherein, the pre-monitoring template window parameters include, for example: the system comprises a pre-monitoring template window starting point coordinate, a pre-monitoring template window height and a pre-monitoring template window width. The pre-monitoring template line parameters comprise: the method comprises the steps of pre-monitoring template line starting point coordinates, pre-monitoring template line length and pre-monitoring template line width.
Specifically, the coordinates of the starting point of the pre-monitoring template window, the height of the pre-monitoring template window, the width of the pre-monitoring template window, the coordinates of the starting point of the pre-monitoring template line and the length of the pre-monitoring template line are relative parameters respectively; the width of the pre-monitoring template line is an absolute parameter.
Specifically, the calculating the layout parameters of the multi-video signal pre-monitoring picture according to the layout parameters of the selected multi-video signal pre-monitoring template, the resolution of the pre-monitoring display, the attribute information of the plurality of input video signal materials, and the attribute information of the plurality of output video signal materials includes, for example: responding to the selection operation of a user, and selecting a multi-video signal pre-monitoring template to obtain the layout parameters of the selected multi-video signal pre-monitoring template; calculating to obtain the resolution ratio corresponding to each window in the multi-video signal pre-monitoring template according to the resolution ratio of the pre-monitoring display and the layout parameters of the selected multi-video signal pre-monitoring template; calculating scaling parameters respectively corresponding to the plurality of input video signal materials and the plurality of output video signal materials according to the attribute information of the plurality of input video signal materials, the resolution sizes of windows in the plurality of video signal pre-monitoring templates respectively corresponding to the plurality of input video signal materials, the attribute information of the plurality of output video signal materials and the resolution sizes of windows in the plurality of video signal pre-monitoring templates respectively corresponding to the plurality of output video signal materials; and taking the scaling parameter and the pre-monitoring template window starting point coordinate corresponding to each input video signal material and each output video signal material as the layout parameter of the multi-video signal pre-monitoring picture.
The following describes the execution process of step S15 by taking fig. 1C as an example, and in response to a user selection operation, selects a multi-video signal pre-monitoring template to obtain layout parameters of the selected multi-video signal pre-monitoring template; calculating the resolution corresponding to each window in the multi-video signal pre-monitoring template according to the resolution of the pre-monitoring display and the layout parameters of the selected multi-video signal pre-monitoring template; calculating to obtain scaling parameters respectively corresponding to the plurality of input video signal materials and the plurality of output video signal materials according to the attribute information of the plurality of input video signal materials, the resolution sizes of windows in a plurality of video signal pre-monitoring templates respectively corresponding to the plurality of input video signal materials, the attribute information of the plurality of output video signal materials and the resolution sizes of windows in a plurality of video signal pre-monitoring templates respectively corresponding to the plurality of output video signal materials; and sending the scaling parameters and the pre-monitoring template window starting point coordinates corresponding to each input video signal material and each output video signal material as the layout parameters of the multi-video signal pre-monitoring picture to a corresponding scaling processing (MVR Scaler) module. The scaling module scales and integrates the input video signal materials, such as input 1, input 2, and input in fig. 1B, and the OUTPUT video signal materials, such as OUTPUT1, OUTPUT2, and OUTPUT3 in fig. 1B, based on the layout parameters of the multi-video signal pre-monitored picture to obtain the multi-video signal pre-monitored picture. It should be noted that, for example, the step of obtaining the scaling parameters by calculation further includes obtaining the scaling parameters respectively corresponding to the plurality of input video signal materials and the plurality of output video signal materials by calculation according to the attribute information of the plurality of input video signal materials, the resolution size of the window in the multi-video signal pre-monitoring template respectively corresponding to the plurality of input video signal materials, the window scaling information, the window splicing information, the attribute information of the plurality of output video signal materials, the resolution size of the window in the multi-video signal pre-monitoring template respectively corresponding to the plurality of output video signal materials, the window scaling information, and the window splicing information. The window zoom information mentioned therein is, for example, a 1:1 display or a 19:9 zoom display. The mentioned window splicing information is, for example, that two video signal materials in the window are spliced up and down for display.
Further, the multi-video signal pre-monitoring method further includes, for example: selecting one multi-video signal pre-monitoring template from a plurality of multi-video signal pre-monitoring templates as the selected multi-video signal pre-monitoring template. Different multi-video signal pre-monitoring templates are selected as target multi-video signal pre-monitoring templates through the steps, so that switching among the multi-video signal pre-monitoring templates can be achieved, then the selected target multi-video signal pre-monitoring templates are called through subsequent steps to achieve flexible switching among a plurality of multi-video signal pre-monitoring picture layout modes, specifically, for example, buttons for switching the multi-video signal pre-monitoring templates are arranged on video processing equipment, for example, the target multi-video signal pre-monitoring templates can be switched to through rotating the buttons, and then the target multi-video signal pre-monitoring templates are selected through pressing down a determining button to execute the multi-video signal pre-monitoring method of the embodiment to obtain multi-video signal pre-monitoring pictures according to the target multi-video signal pre-monitoring template layout. It should be noted that, when the multi-video signal pre-monitoring is performed for the first time, the selected multi-video signal pre-monitoring template may not be the target multi-video signal pre-monitoring template obtained by the selection of the user, but may be a default multi-video signal pre-monitoring template set in advance. It is worth mentioning here that the plurality of multi-video signal pre-monitoring templates are, for example, designed in advance and stored in advance as needed, and may be, for example, stored locally, for example, in a video processing device.
The following describes the multiple video signal pre-monitoring templates with reference to fig. 3A to 3F and fig. 4 by taking the multiple video signal sources including 8 video signal sources as an example.
As shown in fig. 3A to 3F, for some examples of the multiple multi-video signal pre-monitoring templates, the embodiments of the present application are not limited thereto, and more multi-video signal pre-monitoring templates may be designed according to the user's needs. Where PGM, PVW, and INPUT represent a current output screen, a preview output screen, and an INPUT screen, respectively. A. B, C, D, E, F, G, H represent 8 video signal sources in the present embodiment, respectively. As shown in fig. 3A, the template indicates that only PGM, PVW, or INPUT is displayed in the entire multi-video signal pre-monitor screen corresponding thereto, i.e., only one of the current output screen, the preview output screen, and the INPUT screen is displayed.
As shown in fig. 3B, the template indicates that the left half of the multi-video signal pre-monitor frame corresponding to the multi-video signal pre-monitor frame displays PGM, i.e. the current output frame, the right half of the multi-video signal pre-monitor frame is divided into 8 small rectangular frames with 4 rows and 2 columns, and the input frames corresponding to 8 video signal sources are sequentially displayed.
As shown in fig. 3C, the template indicates that the top half of the multi-video signal pre-monitor frame corresponding to the multi-video signal pre-monitor frame displays PGM, i.e. the current output frame, the bottom half of the multi-video signal pre-monitor frame is divided into 8 small rectangular frames with 2 rows and 4 columns, and the input frames corresponding to 8 video signal sources are sequentially displayed.
As shown in fig. 3D, the template shows that the left half of the multi-video signal pre-monitor picture corresponding to the multi-video signal pre-monitor picture is divided into two small rectangular pictures distributed left and right to display PVW and PGM respectively, i.e. the preview output picture and the current output picture, and the right half of the picture is divided into 8 small rectangular pictures with 4 rows and 2 columns to sequentially display the input pictures corresponding to 8 video signal sources.
As shown in fig. 3E, the template indicates that the upper half of the multi-video signal pre-monitor picture corresponding to the multi-video signal pre-monitor picture is divided into two small rectangular pictures distributed up and down, and PGM and PVW, i.e. the current output picture and the preview output picture, are displayed respectively, and the lower half of the multi-video signal pre-monitor picture is divided into 8 small rectangular pictures with 2 rows and 4 columns, and input pictures corresponding to 8 video signal sources are sequentially displayed.
As shown in fig. 3F, this template shows that the upper half of the multi-video signal pre-monitor frame corresponding to the multi-video signal pre-monitor frame is divided into two small rectangular frames distributed left and right, which respectively display PVW and PGM, i.e. preview output frame and current output frame, and the lower half of the multi-video signal pre-monitor frame is divided into 8 small rectangular frames of 2 rows and 4 columns, which sequentially display the input frames corresponding to 8 video signal sources.
Assuming that the selected multi-video signal pre-monitoring template is the template in fig. 3F, the layout parameters of the selected multi-video signal pre-monitoring template will be described in detail below with reference to fig. 4: the method comprises the steps of pre-monitoring template window parameters, pre-monitoring template window corresponding signal sources and pre-monitoring template line parameters. In fig. 4, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 marked at the upper right corner of each window are respectively used to represent each window.
Wherein, the pre-monitoring template window parameters comprise: the system comprises a pre-monitoring template window starting point coordinate, a pre-monitoring template window height and a pre-monitoring template window width. As shown in fig. 4, the coordinates of the window start point of the pre-monitoring template store the coordinate values of the start point of each window in fig. 4, for example, the coordinate value of the point at the upper left corner of each window, for example, the coordinate value of the start point a of window 0 is (x is 0, y is 0); the height of the pre-monitored template window and the width of the pre-monitored template window respectively store information of the width and the height of the window, for example, the width w and the height h of the window 0 are respectively 1/2, it is worth mentioning here that the height of the pre-monitored template window and the width of the pre-monitored template window are proportional parameters, but not absolute parameters, for example, the width of the window 0 is 1/2, which represents that the ratio of the width of the window 0 to the resolution of the whole width of the pre-monitored display is 1/2, and similarly, the height of the window 0 is 1/2, which represents that the ratio of the height of the window 0 to the resolution of the whole width of the pre-monitored display is 1/2. Thus, the parameters of window 0 may be expressed as (x-0, y-0, w-1/2, h-1/2), for example.
The pre-monitoring template line parameters comprise: the method comprises the steps of pre-monitoring template line starting point coordinates, pre-monitoring template line length and pre-monitoring template line width. As shown in fig. 4, the coordinates of the starting point of the pre-monitoring template line are the coordinates of the starting point of each line in fig. 4, for example, the coordinate value of the left end point of the horizontal line and the coordinate value of the upper end point of the vertical line, for example, the coordinate value of the starting point of the line bc, that is, the left end point b is (x ═ 0, y ═ 3/4); it should be noted that the length of the pre-monitoring template line and the width of the pre-monitoring template line, for example, the length and width of the line bc are 1 and 2, respectively, and that the length of the pre-monitoring template line is a proportional parameter, not an absolute parameter, and that a length of the line bc of 1 represents a ratio of the actual length of the line bc to the resolution of the entire pre-monitoring display width of 1. Thus, the parameters of the horizontal line bc may be expressed as (x ═ 0, y ═ 3/4, w ═ 1, and h ═ 2px) where px is the pixel. The width of the pre-monitored template line, i.e. the thickness of the line, is an absolute parameter. In addition, it is worth to be noted that, for the horizontal line, w represents the line length, h represents the line width, and the value of the line length is the ratio of the actual line length to the resolution of the whole pre-monitor display width; for a vertical line, h represents the line length and w represents the line width, which is the ratio of the line length to the resolution of the entire pre-monitor display length. For example, the parameters of the vertical line de in fig. 4 may be represented as (x-3/4, y-1/2, w-2 px, h-1/2).
As shown in fig. 2, a multi-video signal pre-monitoring system 20 is provided according to another embodiment of the present application. The method comprises the following steps: a video processing device 21 and a pre-monitoring display 23. Wherein, the video processing device 21 includes, for example, a single-monitoring video output interface 211 (e.g., an HDMI video output interface or a DVI video output interface), and the video processing device 21 is configured to execute a multi-video signal pre-monitoring method to obtain a multi-video signal pre-monitoring picture and output the multi-video signal pre-monitoring picture through the single-monitoring video output interface 211. The pre-monitor display 23 is used for receiving and displaying the multi-video signal pre-monitor picture output by the single-monitor video output interface 211. Specifically, the multi-video signal pre-monitoring method for example adopts the multi-video signal pre-monitoring method 10 according to the foregoing one embodiment, and the specific flow thereof refers to the detailed description of the foregoing one embodiment, and is not repeated herein. The video processing device 21 includes, for example, ARM (advanced RISC machines) and FPGA (Field Programmable Gate Array), the video processing device 21 is implemented based on an ARM + FPGA architecture, and the video processing device 21 further includes, for example, an input detection module, an image processing module, an image output module, a video encoder, a video decoder, and a pre-monitoring module for implementing the multi-video signal pre-monitoring method 10.
As shown in fig. 6, for a computer-readable medium provided for another embodiment of the present application, the computer-readable medium 40 stores computer-readable instructions, for example, the computer-readable instructions include instructions for executing the multi-video signal pre-monitoring method according to the first embodiment, and the specific flow thereof refers to the detailed description of the foregoing embodiment, which is not repeated herein.
Fig. 5A, fig. 5B and fig. 5C are schematic diagrams illustrating pre-monitoring effects correspondingly implemented by using the multi-video signal pre-monitoring template shown in fig. 3A, fig. 3B and fig. 3C as the selected multi-video signal pre-monitoring template, respectively. Specifically, as shown in fig. 5A, the multi-video signal pre-monitoring template shown in fig. 3A is used as the selected multi-video signal pre-monitoring template, and only one of the current output picture, the preview output picture and the input picture is displayed in the correspondingly obtained multi-video signal pre-monitoring picture. As shown in fig. 5B, the multi-video signal pre-monitoring template shown in fig. 3B is used as the selected multi-video signal pre-monitoring template, the left half of the obtained multi-video signal pre-monitoring picture displays the current output picture, the right half of the obtained multi-video signal pre-monitoring picture is equally divided into 8 small rectangular pictures with 4 rows and 2 columns, and the input pictures corresponding to 8 video signal sources are sequentially displayed. As shown in fig. 5C, the multi-video signal pre-monitoring template shown in fig. 3C is used as the selected multi-video signal pre-monitoring template, the current output picture is displayed on the top half of the obtained multi-video signal pre-monitoring picture, the bottom half of the obtained multi-video signal pre-monitoring picture is divided into 8 small rectangular pictures with 2 rows and 4 columns, and the input pictures corresponding to 8 video signal sources are sequentially displayed.
To sum up, the embodiment of the present application integrates and processes a plurality of input video signal materials and a plurality of output video signal materials by calling a selected multi-video signal pre-monitoring template to obtain a multi-video signal pre-monitoring picture, outputs the multi-video signal pre-monitoring picture through a single monitoring video output interface to be displayed on a pre-monitoring display, and selects different multi-video signal pre-monitoring templates to serve as the selected multi-video signal pre-monitoring template, so that the centralized monitoring of input, output and pre-output videos of the video processing device can be realized on the single video output interface, and the layout modes of the multi-video signal pre-monitoring pictures can be flexibly switched, so that the multi-video signal pre-monitoring picture effects are more flexible and diversified.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and/or method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units/modules can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units/modules in the embodiments of the present application may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
The integrated units/modules, which are implemented in the form of software functional units/modules, may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing one or more processors of a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
- A method of multi-video signal pre-monitoring, comprising:obtaining a plurality of input video signal materials from a plurality of video signal sources, and carrying out video processing on the plurality of input video signal materials to obtain a plurality of output video signal materials;providing a selected multi-video signal pre-monitoring template and a pre-monitoring display;calculating layout parameters of a multi-video signal pre-monitoring picture according to the layout parameters of the selected multi-video signal pre-monitoring template, the resolution of the pre-monitoring display, the attribute information of the input video signal materials and the attribute information of the output video signal materials;integrating the input video signal materials and the output video signal materials according to the layout parameters of the multi-video signal pre-monitoring picture to obtain a multi-video signal pre-monitoring picture;and outputting the multi-video signal pre-monitoring picture to the pre-monitoring display through a single monitoring video output interface for displaying.
- The method of multi-video signal pre-monitoring as in claim 1, wherein said inputting a plurality of video signal sources to obtain a plurality of input video signal material comprises:splitting part or all of the video signal sources to obtain a plurality of sub video signal sources;the plurality of input video signal material comprises: and the plurality of sub video signal sources and the video signal source which is not subjected to the splitting processing in the plurality of video signal sources.
- The multi-video signal pre-monitoring method of claim 1, wherein the layout parameters of the selected multi-video signal pre-monitoring template include: the method comprises the steps of pre-monitoring template window parameters, pre-monitoring template window corresponding signal sources and pre-monitoring template line parameters.
- The method of multi-video signal pre-monitoring as claimed in claim 3, wherein the pre-monitoring template window parameters comprise: the method comprises the following steps of (1) pre-monitoring a template window starting point coordinate, a pre-monitoring template window height and a pre-monitoring template window width; the pre-monitoring template line parameters comprise: the method comprises the steps of pre-monitoring template line starting point coordinates, pre-monitoring template line length and pre-monitoring template line width.
- The multi-video signal pre-monitoring method according to claim 4, wherein the pre-monitoring template window starting point coordinates, the pre-monitoring template window height, the pre-monitoring template window width, the pre-monitoring template line starting point coordinates, and the pre-monitoring template line length are relative parameters respectively; the width of the pre-monitoring template line is an absolute parameter.
- The multi-video signal pre-monitoring method of claim 1, wherein the multi-video signal pre-monitoring picture comprises: at least one of the input video signal material and/or at least one of the output video signal material.
- The multi-video signal pre-monitoring method of claim 5, wherein said calculating layout parameters of a multi-video signal pre-monitoring picture according to layout parameters of said selected multi-video signal pre-monitoring template, resolution of said pre-monitoring display, attribute information of said plurality of input video signal materials, and attribute information of said plurality of output video signal materials comprises:responding to the selection operation of a user, and selecting a multi-video signal pre-monitoring template to obtain the layout parameters of the selected multi-video signal pre-monitoring template;calculating to obtain the resolution ratio corresponding to each window in the multi-video signal pre-monitoring template according to the resolution ratio of the pre-monitoring display and the layout parameters of the selected multi-video signal pre-monitoring template;calculating scaling parameters respectively corresponding to the plurality of input video signal materials and the plurality of output video signal materials according to the attribute information of the plurality of input video signal materials, the resolution sizes of windows in the multi-video signal pre-monitoring template respectively corresponding to the plurality of input video signal materials, the attribute information of the plurality of output video signal materials and the resolution sizes of windows in the multi-video signal pre-monitoring template respectively corresponding to the plurality of output video signal materials;and taking the scaling parameter and the pre-monitoring template window starting point coordinate corresponding to each input video signal material and each output video signal material as the layout parameter of the multi-video signal pre-monitoring picture.
- A multi-video signal pre-monitoring system comprising:a video processing apparatus comprising a single surveillance video output interface, the video processing apparatus being configured to perform the multi-video signal pre-surveillance method according to any one of claims 1-7 to obtain the multi-video signal pre-surveillance picture and output the multi-video signal pre-surveillance picture through the single surveillance video output interface;and the pre-monitoring display is used for receiving and displaying the multi-video signal pre-monitoring picture output by the single monitoring video output interface.
- The multi-video signal pre-monitoring system of claim 8, wherein the plurality of multi-video signal pre-monitoring templates are pre-stored in the video processing device.
- A computer readable medium having computer readable instructions stored thereon, the computer readable instructions comprising instructions for performing the multi-video signal pre-monitoring method according to any one of claims 1 to 7.
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