CN113286100A - Configuration method and device of video output interface and video output equipment - Google Patents
Configuration method and device of video output interface and video output equipment Download PDFInfo
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- CN113286100A CN113286100A CN202110535364.XA CN202110535364A CN113286100A CN 113286100 A CN113286100 A CN 113286100A CN 202110535364 A CN202110535364 A CN 202110535364A CN 113286100 A CN113286100 A CN 113286100A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The application discloses a configuration method and device of a video output interface and video output equipment. Wherein, the method comprises the following steps: acquiring a target resolution set by a video output interface, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces; comparing the target resolution with a preset interface resolution; determining a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is a target resolution; and setting a plurality of sub-output interfaces according to a splicing mode. The method and the device solve the technical problems that the method for configuring the video output interface adopted at present is high in implementation difficulty and high in cost in order to enable the video output interface to output the image meeting a certain resolution.
Description
Technical Field
The application relates to the technical field of display, in particular to a configuration method and device of a video output interface and video output equipment.
Background
When the resolution of the output interface of the two-in-one sending card is set, the video processor needs to set a specific method to realize the output of the 1300W resolution because the total number of the load points of 20 network ports of a single two-in-one sending card can reach 1300W, that is, the output resolution of 4K +.
In the prior art, a single card presents 4 independent output interfaces for a user, and the user manually sets resolution and splicing relation respectively according to needs.
A single card in the prior art presents 4 independent interfaces to a user, and the user needs to set each independent interface, as shown in fig. 1, where fig. 1 is a schematic diagram of the setting of each interface in the prior art. Where the setter width and height are required for all four interfaces on the output21 card.
First, this operation is very inconvenient for the user, since the resolution of one card requires the user to manually set 4 separate interfaces for manual splicing. Secondly, it is also difficult for the user to calculate where the individual interface resolutions can achieve the entire 4K + load. Since this requires the user to have a clear understanding of the video interface timing constraints to achieve.
Further, in the related art, the 4k + interface is supported on a single card, but the 4k + interface is a very large interface whose width and height are set by a user. However, this technique is not flexible enough and requires a high processor, and the cost is increased accordingly.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the application provides a configuration method and device of a video output interface and video output equipment, and aims to at least solve the technical problems that the currently adopted method for configuring the video output interface is high in implementation difficulty and high in cost in order to enable the video output interface to output images meeting a certain resolution.
According to an aspect of an embodiment of the present application, there is provided a method for configuring a video output interface, including: acquiring a target resolution set by a video output interface, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces; comparing the target resolution with a preset interface resolution; determining a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is a target resolution; and configuring a plurality of sub-output interfaces according to a splicing mode.
Optionally, determining a splicing manner of the plurality of sub-output interfaces according to the comparison result includes: if the target resolution is greater than the preset interface resolution, judging whether the horizontal resolution is greater than a first preset threshold value or not to obtain a first judgment result; if the first judgment result is yes, determining that the splicing mode of the plurality of sub-output interfaces is a first splicing mode, wherein the first splicing mode comprises the following steps: horizontally splicing a plurality of sub-output interfaces; if the first judgment result is negative, judging whether the horizontal resolution is larger than a second preset threshold value or not to obtain a second judgment result; and determining the splicing mode of the plurality of sub-output interfaces according to the second judgment result.
Optionally, determining a splicing manner of the plurality of sub-output interfaces according to the second judgment result includes: if the second judgment result is yes, determining that the splicing mode of the plurality of sub-output interfaces is a second splicing mode, wherein the second splicing mode comprises the following steps: taking a value obtained by rounding 2 from the horizontal resolution as the resolution of the video output interface in the horizontal direction, and vertically splicing a plurality of sub-output interfaces; if the second judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is a third splicing mode, wherein the third splicing mode comprises the following steps: and taking the resolution corresponding to the second preset threshold as the resolution of the video output interface in the horizontal direction, and then vertically splicing the plurality of sub-output interfaces.
Optionally, determining a splicing manner of the plurality of sub-output interfaces according to the comparison result, further comprising: if the target resolution is smaller than the preset interface resolution, judging whether the horizontal resolution is larger than a first preset threshold value or not to obtain a third judgment result; if the third judgment result is yes, determining that the splicing mode of the plurality of sub-output interfaces is the first splicing mode; if the third judgment result is negative, judging whether the product of the target resolution and the preset frame rate is smaller than the first preset clock frequency or not to obtain a fourth judgment result; and determining the splicing mode of the plurality of sub-output interfaces according to the fourth judgment result.
Optionally, determining a splicing manner of the multiple sub-output interfaces according to the fourth determination result includes: if the fourth judgment result is yes, judging whether the horizontal resolution is larger than a second preset threshold value or not to obtain a fifth judgment result; if the fourth judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is the second splicing mode; if the fifth judgment result is yes, determining a second splicing mode of the splicing modes of the plurality of sub-output interfaces; and if the fifth judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is the third splicing mode.
Optionally, after determining the splicing manner of the multiple sub-output interfaces, the method further includes: under the condition that all the sub-output interfaces participate in splicing, calculating the total output frequency of the spliced sub-output interfaces according to a preset rule; and if the product of the total output frequency of the plurality of sub-output interfaces and the preset frame rate is greater than a second preset clock frequency, setting resolution parameters required by the sub-output interfaces by adopting a user-defined rule.
Optionally, the setting of resolution parameters required by the sub-output interface by using a custom rule includes: setting the vertical front shoulder, the vertical back shoulder and the vertical synchronous width of video time sequence output as 1,3 and 1 line respectively; determining the total resolution in the vertical direction according to the vertical resolution, the vertical front shoulder, the vertical back shoulder and the vertical synchronization width of the target resolution in the vertical direction; determining the total resolution in the horizontal direction according to the second preset clock frequency, the preset frame rate and the total resolution in the vertical direction; determining the sum of the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronization width of the video time sequence output according to the horizontal resolution of the target resolution in the horizontal direction and the total resolution in the horizontal direction; respectively calculating the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronous width of the video time sequence output by using the sum according to a preset formula; and taking the vertical front shoulder, the vertical back shoulder, the vertical synchronous width, the horizontal front shoulder, the horizontal back shoulder, the horizontal synchronous width, the total resolution in the vertical direction and the total resolution in the horizontal direction as resolution parameters required by the sub-output interface.
Optionally, before comparing the target resolution with the preset interface resolution, the method further includes: judging whether the horizontal resolution of the target resolution in the horizontal direction is smaller than the maximum width value of the data output by the sub-output interfaces in the horizontal direction, and whether the vertical resolution of the target resolution in the vertical direction is smaller than the maximum height value of the data output by the sub-output interfaces in the vertical direction, so as to obtain a sixth judgment result; if the sixth judgment result is negative, the resolution of the image output by the video output interface cannot reach the target resolution; if the sixth judgment result is yes, judging whether the product of the target resolution and the preset frame rate is smaller than a second preset clock frequency or not to obtain a seventh judgment result; if the seventh judgment result is negative, the video output interface can not output the image meeting the target resolution; and if the seventh judgment result is yes, comparing the target resolution with the preset interface resolution.
Optionally, the number of pixels obtained by multiplying the horizontal resolution by the vertical resolution is less than the number of preset pixels; comparing the target resolution with a preset interface resolution, comprising: and comparing the pixel point number obtained by the product of the horizontal resolution and the vertical resolution with the pixel point number corresponding to the preset interface resolution.
According to another aspect of the embodiments of the present application, there is also provided a device for configuring a video output interface, including: the acquisition module is used for acquiring a target resolution set by the video output interface, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces; the comparison module is used for comparing the target resolution with the preset interface resolution; the determining module is used for determining the splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is the target resolution; and the configuration module is used for configuring the plurality of sub-output interfaces according to the splicing mode.
According to another aspect of the embodiments of the present application, there is also provided a video output apparatus including: the video output interface of the video transmitting card comprises a plurality of sub-output interfaces and is used for outputting images reaching the target resolution; the processor is in communication with the video transmitter card for obtaining a target resolution, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction; comparing the target resolution with a preset interface resolution; setting a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is a target resolution; and configuring a plurality of sub-output interfaces according to a splicing mode.
According to still another aspect of the embodiments of the present application, there is provided a non-volatile storage medium, where the non-volatile storage medium includes a stored program, and the apparatus in which the non-volatile storage medium is located is controlled to execute the above configuration method of the video output interface when the program runs.
According to still another aspect of the embodiments of the present application, there is also provided a processor for executing a program stored in a memory, wherein the program executes the above configuration method of the video output interface.
In the embodiment of the present application, a target resolution set by an interface for acquiring a video output is adopted, where the target resolution includes: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces; comparing the target resolution with a preset interface resolution; determining a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is a target resolution; the method for configuring the plurality of sub-output interfaces according to the splicing mode automatically calculates the internal resolution and automatically maps the splicing relation of the internal interfaces according to the resolution set by a user, thereby realizing the purpose of randomly setting the resolution of the video output interface in a loading range, greatly simplifying the technical effect of the process of setting the resolution of the video output interface by the user, and further solving the technical problems of higher difficulty and high cost in the currently adopted method for configuring the video output interface in order to output images meeting a certain resolution by the video output interface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a resolution setting of a video output interface according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for configuring a video output interface according to an embodiment of the present application;
FIG. 3 is a schematic diagram of another video output interface resolution setting according to an embodiment of the present application;
fig. 4 is a block diagram of a configuration apparatus of a video output interface according to an embodiment of the present application;
fig. 5 is a block diagram of a video output device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, 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 partial embodiments of the present application, but not all 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.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or 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.
According to the technical scheme, 4SL output interfaces are spliced into an output interface capable of outputting 4K + resolution images in the video output card, so that the video output card can adopt two modes, when 4 independent SL output (1920 x 1080) interfaces are required to be screened, the 4SL mode is selected, 4 interfaces can be seen on a software interface, and when 4K + output is required, the 4K + mode is selected, so that 1 interface can be seen on the software interface.
For example, our device has 20 ports in physical state. The 20 net ports can realize 4SL output interfaces (5 net ports correspond to one SL output interface), and can also realize 4k +. The user can switch the mode state of the card, when 4 independent SL output interfaces are needed to be provided with the screen, the 4SL mode is selected, so that 4 interfaces can be seen on the software, and when 4K + output is needed, the 4K + mode is selected, so that 1 interface can be seen on the software. The physical state is 20 network ports, the use mode and the software program interface state are dynamically changed, and the physical state is not changed by 20 network ports.
The protection of the scheme is mainly that: how to set the interface resolution dynamically in the 4k range, and to stitch a corresponding screen through 4 internal interfaces.
According to an embodiment of the present application, there is provided an embodiment of a method for setting a video output interface, where it is noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown.
Fig. 2 is a flowchart of a configuration method of a video output interface according to an embodiment of the present application, and as shown in fig. 2, the method includes the following steps:
step S202, obtaining a target resolution set by the video output interface, wherein the target resolution includes: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces;
it should be noted that the target resolution mentioned in step S202 is a resolution set by the user as needed. The resolution is smaller than the 4K + resolution mentioned in the background art.
In an alternative embodiment provided by the present application, the number of the sub-output interfaces is 4.
Step S204, comparing the target resolution with a preset interface resolution;
step S206, determining a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is the target resolution;
and step S208, configuring a plurality of sub-output interfaces according to the splicing mode.
Through the steps, the internal resolution is calculated and the splicing relation of the internal interfaces is mapped automatically according to the resolution set by the user dynamically, so that the resolution of the video output interface can be set randomly within a loading range, and the technical effect of the process of setting the resolution of the video output interface by the user is greatly simplified.
According to an alternative embodiment of the present application, step S206 is implemented by: if the target resolution is greater than the preset interface resolution, judging whether the horizontal resolution is greater than a first preset threshold value or not to obtain a first judgment result; if the first judgment result is yes, determining that the splicing mode of the plurality of sub-output interfaces is a first splicing mode, wherein the first splicing mode comprises the following steps: horizontally splicing a plurality of sub-output interfaces; if the first judgment result is negative, judging whether the horizontal resolution is larger than a second preset threshold value or not to obtain a second judgment result; and determining the splicing mode of the plurality of sub-output interfaces according to the second judgment result.
According to an alternative embodiment of the present application, the preset interface resolution may be obtained based on a video output interface. For example, the resolution of the preset interface resolution in the horizontal direction needs to be less than or equal to the maximum resolution of the single sub-output interface in the horizontal direction (in this application, the maximum resolution of the single sub-output interface in the horizontal direction is 2688).
In one embodiment provided herein, the preset interface resolution may be set to 1920 × 1080 × 60, where 1920 refers to 1920 pixels in the horizontal direction; 1080 refers to 1080 pixel points in the vertical direction, and 60 refers to the refresh rate of the screen at 60 times per second. It should be noted that the resolution of the preset interface resolution in the horizontal direction may also be set to other values less than or equal to 2688.
If the target resolution is greater than the preset interface resolution, further determining whether the horizontal resolution of the target resolution in the horizontal direction is greater than 2560 (i.e. the first preset threshold value in the foregoing, 2560 is a defined threshold value, which may also be 2688), and if so, determining that the splicing manner of the multiple sub-output interfaces is horizontal splitting (i.e. horizontal screen building).
It should be noted that the first preset threshold may be obtained according to the resolution of the single sub-output interface in the horizontal direction, for example, the first preset threshold is equal to the maximum resolution of the single sub-output interface in the horizontal direction.
In the embodiment provided by the present application, the maximum width of the output frequency of the single sub-output interface is 2688, and the maximum height is 2048. The splicing method of the horizontal division is described as follows in a specific embodiment:
for example, the horizontal resolution of the target resolution in the horizontal direction is 4000 (greater than 2560), and at this time, 4 sub-output interfaces inside the video output interface need to be horizontally arranged, and each sub-output interface shares 1000 resolutions.
After all 4 sub-output interfaces are spliced in the horizontal splitting manner, it is further required to calculate whether the clock frequency of the 4 internal sub-output interfaces exceeds a preset clock frequency (208M) according to a CVT rule, and if the clock frequency exceeds the preset clock frequency, resolution parameters required by the sub-output interfaces need to be set according to a custom rule (a specific algorithm is described in detail below).
It should be noted that the CVT rule is a coordinated timing standard, a VESA standard. The clock frequency calculation method is realized by the following formula: htotal Vtotal refresh, where Htotal is the total number of pixels in the horizontal direction, Vtotal is the total number of pixels in the vertical direction, and refresh is the preset frame rate (60 HZ).
If the horizontal resolution of the target resolution in the horizontal direction is determined to be smaller than 2560, it is further determined whether the horizontal resolution is larger than 640 (i.e., a second predetermined threshold), and a second determination result is obtained.
Optionally, the second preset threshold is also obtained according to the resolution of the single sub-output interface in the horizontal direction, for example, the second preset threshold is equal to the minimum resolution of the single sub-output interface in the horizontal direction (in this application, the minimum resolution of the single sub-output interface in the horizontal direction is 640).
According to another alternative embodiment of the present application, determining a splicing manner of the plurality of sub-output interfaces according to the second determination result includes: if the second judgment result is yes, determining that the splicing mode of the plurality of sub-output interfaces is a second splicing mode, wherein the second splicing mode comprises the following steps: taking a value obtained by rounding 2 from the horizontal resolution as the resolution of the video output interface in the horizontal direction, and vertically splicing a plurality of sub-output interfaces; if the second judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is a third splicing mode, wherein the third splicing mode comprises the following steps: and taking the resolution corresponding to the second preset threshold as the resolution of the video output interface in the horizontal direction, and then vertically splicing the plurality of sub-output interfaces.
If the horizontal resolution of the target resolution in the horizontal direction is larger than 640 and smaller than 2560, rounding up 2 and vertically building a screen and intercepting by using the actual horizontal resolution, and enabling a single sub-output interface to support the vertical 8192 (calculating according to the CVT rule, one interface is not satisfied, two interfaces are adopted for building a screen, and the like, and under the condition that the screens are vertically built through 4 interfaces, if the CVT rule is not satisfied, the resolution parameters required by the sub-output interfaces are set according to the user-defined rule).
The above-mentioned vertical screen building method is described in a specific embodiment as follows:
for example, the target resolution is 1920 × 9000, where 1920 is greater than 640 and smaller than 2560, and since the resolution of the output water quality of a single sub-output interface is 2688, in this case, the above-mentioned vertical screen building manner needs to be adopted, that is, the splicing manner of the multiple sub-output interfaces is a vertical splicing manner, that is, the resolution of the output 1920 can be achieved by 1 sub-output interface in the horizontal direction. But two sub-output interfaces are required in the vertical direction to achieve the resolution of the output 9000.
Like the horizontal screen building, after all 4 sub-output interfaces are vertically spliced, whether the clock frequency of the 4 sub-output interfaces exceeds a preset clock frequency (208M) needs to be calculated according to a CVT rule, and if the clock frequency exceeds the preset clock frequency, a resolution parameter required by the sub-output interface needs to be set according to a custom rule (a specific algorithm is described in detail below).
As described above, if the horizontal resolution of the target resolution in the horizontal direction is smaller than 640, the resolution of 640 is used as the resolution of the video output interface in the horizontal direction, a vertical screen is built and intercepted, and a single interface can support a vertical 8192 (in the case of vertical screen building of 4 interfaces, if the CVT rule is not satisfied, two interfaces are used for building a screen, and so on, the resolution parameters required by the sub-output interfaces are set according to the user-defined rule) if the CVT rule is not satisfied.
The vertical screen building manner in this step is the same as that of the second splicing manner described above, and will not be described herein again. The difference is that the resolution of the video output interface in the horizontal direction in the second splicing mode is the actual resolution of the target resolution in the horizontal direction, and the resolution of the video output interface in the horizontal direction in this step is 640. For example, the target resolution is 520 × 9000, that is, the resolution of the target resolution in the horizontal direction is 520, which is smaller than 640, but in the embodiment provided in this application, the minimum resolution output by the video output interface in the horizontal direction is 640, so that only 640 is used as the resolution in the horizontal direction, and after the sub video output interfaces are spliced, when the video windowing and other service operations are performed by applying the interface, the output interface clipping processing is performed on the corresponding excess horizontal resolution portion.
In some optional embodiments of the present application, step S206 may also be implemented by the following method: if the target resolution is smaller than the preset interface resolution, judging whether the horizontal resolution is larger than a first preset threshold value or not to obtain a third judgment result; if the third judgment result is yes, determining that the splicing mode of the plurality of sub-output interfaces is the first splicing mode; if the third judgment result is negative, judging whether the product of the target resolution and the preset frame rate is smaller than the first preset clock frequency or not to obtain a fourth judgment result; and determining the splicing mode of the plurality of sub-output interfaces according to the fourth judgment result.
If the target resolution is greater than the preset interface resolution, further judging whether the horizontal resolution of the target resolution in the horizontal direction is greater than 2560, if so, determining that the splicing mode of the plurality of sub-output interfaces is the first splicing mode (namely horizontal screen building) in the text; if not, judging whether the product of the resolution of the target resolution in the horizontal direction and the resolution of the target resolution in the vertical direction and the preset frame rate is less than a first preset clock frequency (htotanvtotal refresh <165M) or not, and obtaining a fourth judgment result.
In other optional embodiments of the present application, determining a splicing manner of the multiple sub-output interfaces according to the fourth determination result includes: if the fourth judgment result is yes, judging whether the horizontal resolution is larger than a second preset threshold value or not to obtain a fifth judgment result; if the fourth judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is the second splicing mode; if the fifth judgment result is yes, determining a second splicing mode of the splicing modes of the plurality of sub-output interfaces; and if the fifth judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is the third splicing mode.
If the fourth judgment result is yes (htotanvtotal refresh <165M), further judging whether the horizontal resolution is larger than 640 to obtain a fifth judgment result. If the fifth judgment result is yes, the actual horizontal resolution is used for rounding up 2, and the screen is vertically built and intercepted, so that the single interface can support the vertical 8192 (according to CVT rule calculation, one interface is not satisfied, two interfaces are used for building the screen, and the like, namely the second splicing mode in the foregoing). If the fifth judgment result is negative, the resolution ratio of 640 is used as the resolution ratio of the video output interface in the horizontal direction, the screen is vertically built and intercepted, and the single interface can support the vertical 8192 (according to CVT rule calculation, one interface is not satisfied, two interfaces are adopted to build the screen, and the like, namely the third splicing mode in the above).
If the fourth judgment result is no (htotai vtotai refresh > 165M), 2 is rounded upwards by using the actual horizontal resolution, and the screen is vertically built and intercepted, so that the single interface can support the vertical 8192 (according to CVT rule calculation, one interface is not satisfied, two interfaces are adopted for building the screen, and the like, namely the second splicing mode in the above text).
According to an optional embodiment of the application, after the splicing mode of the plurality of sub-output interfaces is determined, under the condition that the plurality of sub-output interfaces all participate in splicing, calculating the total output frequency of the spliced plurality of sub-output interfaces according to a preset rule; and if the product of the total output frequency of the plurality of sub-output interfaces and the preset frame rate is greater than a second preset clock frequency, setting resolution parameters required by the sub-output interfaces by adopting a user-defined rule.
After all 4 sub-output interfaces are spliced, whether the clock frequency of the 4 sub-output interfaces exceeds a preset clock frequency (208M) or not is calculated according to a CVT rule, and if the clock frequency exceeds the preset clock frequency, resolution parameters required by the sub-output interfaces need to be set according to a custom rule.
According to another alternative embodiment of the present application, the setting of the resolution parameters required by the sub-output interface by using the custom rule includes: setting the vertical front shoulder, the vertical back shoulder and the vertical synchronous width of video time sequence output as 1,3 and 1 line respectively; determining the total resolution in the vertical direction according to the vertical resolution, the vertical front shoulder, the vertical back shoulder and the vertical synchronization width of the target resolution in the vertical direction; determining the total resolution in the horizontal direction according to the second preset clock frequency, the preset frame rate and the total resolution in the vertical direction; determining the sum of the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronization width of the video time sequence output according to the horizontal resolution of the target resolution in the horizontal direction and the total resolution in the horizontal direction; respectively calculating the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronous width of the video time sequence output by using the sum according to a preset formula; and taking the vertical front shoulder, the vertical back shoulder, the vertical synchronous width, the horizontal front shoulder, the horizontal back shoulder, the horizontal synchronous width, the total resolution in the vertical direction and the total resolution in the horizontal direction as resolution parameters required by the sub-output interface.
When the resolution is set by self-definition, the vertical front shoulder, the vertical back shoulder and the vertical synchronous width of the video time sequence output are respectively set to 1,3 and 1 line, namely the limit compression is the vertical blanking time of the video. Therefore, according to the resolution (v _ active) in the vertical direction set by a user, the internal vertical total line number (v _ total) can be calculated, and then according to the dot frequency limit (208M) and the frame rate of the output interface, the internal horizontal total point number h _ total can be calculated. According to the horizontal resolution (h _ active) set by the user, the sum M1 of the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronization width of the video output can be obtained. Therefore, the calculation modes of the horizontal front shoulder h _ front _ porch, the horizontal back shoulder h _ back _ porch and the horizontal synchronization width h _ sync are specified, so that all resolution parameters required by one sub-output interface are obtained.
In some alternative embodiments of the present application, before performing step S104, it is determined whether a horizontal resolution of the target resolution in the horizontal direction is smaller than a maximum width value of the data output by the plurality of sub output interfaces in the horizontal direction, and whether a vertical resolution of the target resolution in the vertical direction is smaller than a maximum height value of the data output by the plurality of sub output interfaces in the vertical direction, so as to obtain a sixth determination result; if the sixth judgment result is negative, the resolution of the image output by the video output interface cannot reach the target resolution; if the sixth judgment result is yes, judging whether the product of the target resolution and the preset frame rate is smaller than a second preset clock frequency or not to obtain a seventh judgment result; if the seventh judgment result is negative, the video output interface can not output the image meeting the target resolution; and if the seventh judgment result is yes, comparing the target resolution with the preset interface resolution.
In this step, it is first determined whether the horizontal resolution and the vertical resolution of the target resolution satisfy the width/height limit, where 2688 × 4 is 10752 and 8192 × 4 is 32768(2688 is the maximum width value of the internal sub-output interface output frequency and 8192 is the maximum height value of the internal sub-output interface output frequency).
If yes, further judging whether the target output frequency meets a preset frequency clock limit (Htotal Vtotal Refresh <208M), and if not, the video output interface can not output the image meeting the target resolution; if the judgment result is yes, the video output interface can output the image meeting the target resolution, and then the subsequent operation of comparing the target resolution with the preset interface resolution is executed.
In other optional embodiments of the present application, the number of pixels obtained by multiplying the horizontal resolution by the vertical resolution is less than the number of preset pixels; comparing the target resolution with a preset interface resolution, comprising: and comparing the pixel point number obtained by the product of the horizontal resolution and the vertical resolution with the pixel point number corresponding to the preset interface resolution.
The number of pixel points obtained by multiplying the horizontal resolution by the vertical resolution is smaller than the preset number of pixel points, which means that the number of pixel points corresponding to the target resolution needs to be smaller than 1300W pixels mentioned in the background art. In step S104, the number of pixels corresponding to the target resolution and the number of pixels corresponding to the preset interface resolution (product of horizontal resolution and vertical resolution) are actually compared.
The invention expounds the special rule of the single two-in-one card when designing the resolution of the video output interface, thereby automatically completing the setting requirement of ensuring the resolution of 4K + output. Because the output tape load of a single two-in-one card is formed by splicing 4 independent interfaces inside, when the resolution ratio is set, the splicing relation mapping of the 4 interfaces is carried out by combining the size of the resolution ratio, and then the resolution ratio matched with a single interface reaches 4 internal independent interfaces to realize the complete 4K + output resolution ratio.
The method can set the resolution of the output interface arbitrarily in the loading range, and greatly simplifies the process of setting the interface resolution by a user. The result of the design of the resolution of the video output interface implemented according to the invention is shown in fig. 3.
Fig. 4 is a block diagram of a configuration apparatus of a video output interface according to an embodiment of the present application, and as shown in fig. 4, the apparatus includes:
an obtaining module 40, configured to obtain a target resolution set by the video output interface, where the target resolution includes: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces;
a comparing module 42, configured to compare the target resolution with a preset interface resolution;
a determining module 44, configured to determine a splicing manner of the multiple sub-output interfaces according to the comparison result, where a resolution of an image output by the video output interface in the splicing manner is a target resolution;
and a configuration module 46, configured to configure a plurality of sub-output interfaces according to a splicing manner.
It should be noted that, reference may be made to the description related to the embodiment shown in fig. 2 for a preferred implementation of the embodiment shown in fig. 4, and details are not described here again.
Fig. 5 is a block diagram of a video output device according to an embodiment of the present application, and as shown in fig. 5, the video output device includes: a processor 50, and a video transmitter card 52, wherein,
the video output interface 520 of the video transmitting card 52 includes a plurality of sub-output interfaces for outputting an image up to the target resolution;
processor 50 is in communication with video transmitter card 52 for obtaining a target resolution, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction; comparing the target resolution with a preset interface resolution; setting a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface 52 is the target resolution in the splicing mode; and configuring a plurality of sub-output interfaces according to a splicing mode.
It should be noted that, reference may be made to the description related to the embodiment shown in fig. 2 for a preferred implementation of the embodiment shown in fig. 5, and details are not described here again.
The embodiment of the application also provides a nonvolatile storage medium, wherein the nonvolatile storage medium comprises a stored program, and the device where the nonvolatile storage medium is located is controlled to execute the configuration method of the video output interface when the program runs.
The nonvolatile storage medium stores a program for executing the following functions: acquiring a target resolution set by a video output interface, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces; comparing the target resolution with a preset interface resolution; determining a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is a target resolution; and configuring a plurality of sub-output interfaces according to a splicing mode.
The embodiment of the application also provides a processor, wherein the processor is used for running the program stored in the memory, and the program is used for executing the configuration method of the video output interface when running.
The processor is used for running a program for executing the following functions: acquiring a target resolution set by a video output interface, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces; comparing the target resolution with a preset interface resolution; determining a splicing mode of the plurality of sub-output interfaces according to the comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is a target resolution; and configuring a plurality of sub-output interfaces according to a splicing mode.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components 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, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (13)
1. A method for configuring a video output interface, comprising:
acquiring a target resolution set by a video output interface, wherein the target resolution comprises: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces;
comparing the target resolution with a preset interface resolution;
determining a splicing mode of the plurality of sub-output interfaces according to a comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is the target resolution;
and configuring the plurality of sub-output interfaces according to the splicing mode.
2. The method of claim 1, wherein determining the splicing manner of the sub-output interfaces according to the comparison result comprises:
if the target resolution is greater than the preset interface resolution, judging whether the horizontal resolution is greater than a first preset threshold value or not to obtain a first judgment result;
if the first judgment result is yes, determining that the splicing mode of the sub-output interfaces is a first splicing mode, wherein the first splicing mode comprises: horizontally splicing the plurality of sub-output interfaces;
if the first judgment result is negative, judging whether the horizontal resolution is larger than a second preset threshold value or not to obtain a second judgment result;
and determining the splicing mode of the sub-output interfaces according to the second judgment result.
3. The method according to claim 2, wherein determining the splicing manner of the sub-output interfaces according to the second determination result comprises:
if the second judgment result is yes, determining that the splicing mode of the sub-output interfaces is a second splicing mode, wherein the second splicing mode comprises: taking a value obtained by rounding 2 upwards from the horizontal resolution as the resolution of the video output interface in the horizontal direction, and then vertically splicing the plurality of sub-output interfaces;
if the second judgment result is negative, determining that the splicing mode of the sub-output interfaces is a third splicing mode, wherein the third splicing mode comprises the following steps: and taking the resolution corresponding to the second preset threshold as the resolution of the video output interface in the horizontal direction, and then vertically splicing the plurality of sub-output interfaces.
4. The method of claim 3, wherein determining the splicing manner of the sub-output interfaces according to the comparison result further comprises:
if the target resolution is smaller than the preset interface resolution, judging whether the horizontal resolution is larger than the first preset threshold value or not to obtain a third judgment result;
if the third judgment result is yes, determining that the splicing mode of the sub-output interfaces is the first splicing mode;
if the third judgment result is negative, judging whether the product of the target resolution and the preset frame rate is smaller than a first preset clock frequency or not, and obtaining a fourth judgment result;
and determining the splicing mode of the sub-output interfaces according to a fourth judgment result.
5. The method according to claim 4, wherein determining the splicing manner of the sub-output interfaces according to the fourth determination result comprises:
if the fourth judgment result is yes, judging whether the horizontal resolution is larger than the second preset threshold value or not to obtain a fifth judgment result;
if the fourth judgment result is negative, determining that the splicing mode of the sub-output interfaces is the second splicing mode;
if the fifth judgment result is yes, determining the splicing mode of the plurality of sub-output interfaces and the second splicing mode;
and if the fifth judgment result is negative, determining that the splicing mode of the plurality of sub-output interfaces is the third splicing mode.
6. The method of claim 5, wherein after determining the splicing pattern of the plurality of sub-output interfaces, the method further comprises:
under the condition that all the sub-output interfaces participate in splicing, calculating the total output frequency of the spliced sub-output interfaces according to a preset rule;
and if the product of the total output frequency of the plurality of sub-output interfaces and the preset frame rate is greater than a second preset clock frequency, setting resolution parameters required by the sub-output interfaces by adopting a user-defined rule.
7. The method of claim 6, wherein setting the resolution parameters required by the sub-output interface using custom rules comprises:
setting the vertical front shoulder, the vertical back shoulder and the vertical synchronous width of video time sequence output as 1,3 and 1 line respectively;
determining a total resolution in a vertical direction according to a vertical resolution of the target resolution in the vertical direction, the vertical front shoulder, the vertical back shoulder and the vertical synchronization width;
determining a total resolution in a horizontal direction according to the second preset clock frequency, the preset frame rate and the total resolution in the vertical direction;
determining the sum of the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronization width of video time sequence output according to the horizontal resolution of the target resolution in the horizontal direction and the total resolution in the horizontal direction;
respectively calculating the horizontal front shoulder, the horizontal back shoulder and the horizontal synchronous width of video time sequence output by utilizing the sum according to a preset formula;
and taking the vertical front shoulder, the vertical back shoulder, the vertical synchronization width, the horizontal front shoulder, the horizontal back shoulder, the horizontal synchronization width, the total resolution in the vertical direction and the total resolution in the horizontal direction as resolution parameters required by the sub-output interface.
8. The method of claim 6, wherein prior to comparing the target resolution to a preset interface resolution, the method further comprises:
judging whether the horizontal resolution of the target resolution in the horizontal direction is smaller than the maximum width value of the data output by the plurality of sub-output interfaces in the horizontal direction, and whether the vertical resolution of the target resolution in the vertical direction is smaller than the maximum height value of the data output by the plurality of sub-output interfaces in the vertical direction, so as to obtain a sixth judgment result;
if the sixth judgment result is negative, the resolution of the image output by the video output interface cannot reach the target resolution; if the sixth judgment result is yes, judging whether the product of the target resolution and the preset frame rate is smaller than the second preset clock frequency or not to obtain a seventh judgment result;
if the seventh judgment result is negative, the video output interface cannot output the image meeting the target resolution; and if the seventh judgment result is yes, comparing the target resolution with a preset interface resolution.
9. The method of claim 1,
the number of pixel points obtained by the product of the horizontal resolution and the vertical resolution is less than the number of preset pixel points;
comparing the target resolution with a preset interface resolution, including: and comparing the pixel point number obtained by the product of the horizontal resolution and the vertical resolution with the pixel point number corresponding to the preset interface resolution.
10. An apparatus for configuring a video output interface, comprising:
an obtaining module, configured to obtain a target resolution set by a video output interface, where the target resolution includes: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction, the video output interface comprising a plurality of sub-output interfaces;
the comparison module is used for comparing the target resolution with a preset interface resolution;
a determining module, configured to determine a splicing manner of the multiple sub-output interfaces according to a comparison result, where a resolution of an image output by the video output interface in the splicing manner is the target resolution;
and the configuration module is used for configuring the plurality of sub-output interfaces according to the splicing mode.
11. A video output apparatus, comprising: a processor, and a video transmitter card, wherein,
the video output interface of the video transmitting card comprises a plurality of sub-output interfaces and is used for outputting the image reaching the target resolution;
the processor is in communication with the video transmitter card and is configured to obtain the target resolution, where the target resolution includes: a horizontal resolution in a horizontal direction and a vertical resolution in a vertical direction; comparing the target resolution with a preset interface resolution; setting a splicing mode of the plurality of sub-output interfaces according to a comparison result, wherein the resolution of the image output by the video output interface in the splicing mode is the target resolution; and configuring the plurality of sub-output interfaces according to the splicing mode.
12. A non-volatile storage medium, comprising a stored program, wherein when the program runs, a device in which the non-volatile storage medium is located is controlled to execute the configuration method of the video output interface according to any one of claims 1 to 9.
13. A processor for executing a program stored in a memory, wherein the program executes to perform the method of configuring a video output interface according to any one of claims 1 to 9.
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