CN111309273B - EDID data generation method, display device and computer readable storage medium - Google Patents
EDID data generation method, display device and computer readable storage medium Download PDFInfo
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- CN111309273B CN111309273B CN202010081101.1A CN202010081101A CN111309273B CN 111309273 B CN111309273 B CN 111309273B CN 202010081101 A CN202010081101 A CN 202010081101A CN 111309273 B CN111309273 B CN 111309273B
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
Abstract
The invention discloses an EDID data generation method, which is applied to display equipment and comprises the following steps: after the display equipment is started, analyzing a preset configuration file, and acquiring parameter values of all parameters in the configuration file; converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data; and synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output. The invention also discloses a display device and a computer readable storage medium. The invention changes the numerical value content of the EDID data into the parameter value in the configuration file, thereby improving the EDID data maintenance efficiency and reducing the EDID data modification difficulty.
Description
Technical Field
The invention relates to the technical field of multimedia display, in particular to an EDID data generation method, display equipment and a computer readable storage medium.
Background
The existing display devices, such as a display, a television, etc., all have HDMI, VGA or DVI ports, and usually each signal input port needs to reserve Extended Display Identification Data (EDID), which may be stored in a program and initialized by a system start-up process, and more commonly, each port has an EEPROM for storing the EDID, which is only 256bytes in size. When a port such as an HDMI (high definition multimedia interface) is subjected to hot plug, an external device such as a DVD player reads EDID data through a DDC (direct digital control) channel of the HDMI. The EDID mainly defines the image resolution, the supported sound format, the sound channel, the 3D and the like supported by the display device, and aims to inform the external device of the supported characteristics of the display device and enable the external device to output a timing supported by the display device, otherwise, the display device cannot well display the image if the timing output by the external device is not supported.
In the existing scheme, EDID data is generally generated by a specific tool and then directly embedded into display equipment, and because the EDID data are binary digits and cannot intuitively display EDID information, a tool is generally used to modify a very small part of fields in the EDID data, such as the manufacture year or the HDMI port number. However, the functions of the existing display devices are more and more complex, and the differences between different types of products are larger, and at this time, only a small part of information is modified, which cannot meet the use requirements of a large variety of display devices, so that how to improve the EDID data maintenance efficiency and reduce the EDID data modification difficulty to generate EDID data suitable for different types of display devices becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention mainly aims to provide an EDID data generation method, display equipment and a computer readable storage medium, and aims to solve the technical problem that the conventional EDID data is not visual enough and is difficult to maintain and modify.
In order to achieve the above object, the present invention provides an EDID data generating method, which is applied to a display device, and includes:
after the display equipment is started, analyzing a preset configuration file, and acquiring parameter values of all parameters in the configuration file;
converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data;
and synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output.
Preferably, before the step of analyzing a preset configuration file and obtaining parameter values of each parameter in the configuration file after the display device is powered on, the method includes:
compiling the numerical values of the corresponding fields of the initial EDID data into configuration files according to the names of the fields, and updating the parameter values in the configuration files based on modification instructions of users;
and storing the updated configuration file to a preset position of the display equipment.
Preferably, the compiling the initial EDID data into a configuration file according to the name of each field, and updating the parameter values in the configuration file based on the modification instruction of the user includes:
obtaining a numerical value corresponding to each field of the initial EDID data;
compiling the obtained numerical values corresponding to the fields into configuration files according to the names of the fields;
and acquiring a modification instruction of a user, and updating the parameter values in the configuration file based on the modification instruction.
Preferably, the step of storing the updated configuration file to a preset location of the display device includes:
and packaging the updated configuration file and the system file into a producible file, and storing the producible file to a preset position of the display equipment.
Preferably, after the step of converting the parameter value into the value of the corresponding field of the extended display identification EDID data, the method further includes:
judging whether all the parameter values are converted;
if all the parameter values are converted, executing the following steps: synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so that a signal source input from the port is matched with the display equipment for output;
if the parameter values are not completely converted, continuing to execute: and converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data.
Preferably, after the step of synthesizing the converted values of the fields into complete EDID data, the method further includes:
verifying the complete EDID data and judging whether the verification result is qualified;
if the verification result is qualified, executing the following steps: sending the complete EDID data to a port of the display device;
and if the verification result is not qualified, returning error prompt information.
Preferably, the step of validating the complete EDID data comprises:
and checking the values of the first n-1 fields in the n bytes every n bytes, and storing the checking result to the nth byte, wherein n is a positive integer.
Preferably, the prompt message includes at least one of a voice prompt message, a text prompt message or a picture prompt message.
Further, to achieve the above object, the present invention also provides a display apparatus including: a port, a memory, a processor, and an EDID data generating program stored on the memory and executable on the processor,
the port is used for inputting a signal source;
the EDID data generation program, when executed by the processor, implements the steps of the EDID data generation method as described in any one of the above.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon an EDID data generating program which, when executed by a processor, realizes the steps of the EDID data generating method according to any one of the above.
After the display equipment is started, analyzing a preset configuration file and acquiring parameter values of all parameters in the configuration file; converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data; and synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output. Through the implementation mode, the parameter values of the parameters are obtained from the configuration files by analyzing the configuration files preset in the display equipment, the parameter values are respectively converted into the numerical values of the corresponding fields of the EDID data, and then the numerical values are combined into the complete EDID data, so that the numerical content of the EDID data is changed into the parameter values in the configuration files, the EDID data maintenance efficiency is improved, and the EDID data modification difficulty is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a first embodiment of an EDID data generating method according to the present invention;
fig. 3 is a schematic flow chart of an EDID data generating method according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating an EDID data generating method according to a third embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention.
The terminal in the embodiment of the present invention may be a PC, or may be a display device having a display function, such as a smart phone, a tablet computer, an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3) player, an MP4 (Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 4) player, a portable computer, or the like.
As shown in fig. 1, the display apparatus may include: a processor 1001, such as a CPU, a communication bus 1002, ports 1003, and memory 1004. Wherein a communication bus 1002 is used to enable connective communication between these components. The port 1003 may be an HDMI, VGA and/or DVI port, and is used for connecting with an audio/video signal source and inputting an audio/video signal. The memory 1004 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1004 may alternatively be a storage device separate from the processor 1001.
Optionally, the Display device may include an input/output port for connecting with an input/output device such as a Display screen (Display), a Keyboard (Keyboard), a mouse, a touch screen, etc., for user operation and use.
Those skilled in the art will appreciate that the display device configuration shown in fig. 1 does not constitute a limitation of the display device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1004, which is a kind of computer storage medium, may include therein an operating system, an interface module, and an EDID data generating program.
In the display device shown in fig. 1, the processor 1001 may be configured to call the EDID data generation program stored in the memory 1004 and perform the following operations:
after the display equipment is started, analyzing a preset configuration file, and acquiring parameter values of all parameters in the configuration file;
converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data;
and synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output.
Further, the processor 1001 may call the EDID data generation program stored in the memory 1004, and also perform the following operations:
compiling the numerical values of the corresponding fields of the initial EDID data into configuration files according to the names of the fields, and updating the parameter values in the configuration files based on modification instructions of users;
and storing the updated configuration file to a preset position of the display equipment.
Further, the processor 1001 may call the EDID data generating program stored in the memory 1004, and also perform the following operations:
acquiring a numerical value corresponding to each field of the initial EDID data;
compiling the obtained numerical values corresponding to the fields into configuration files according to the names of the fields;
and acquiring a modification instruction of a user, and updating the parameter values in the configuration file based on the modification instruction.
Further, the processor 1001 may call the EDID data generating program stored in the memory 1004, and also perform the following operations:
and packaging the updated configuration file and the system file into a producible file, and storing the producible file to a preset position of the display equipment.
Further, the processor 1001 may call the EDID data generation program stored in the memory 1004, and also perform the following operations:
judging whether all the parameter values are converted;
if all the parameter values are converted, executing the following steps: synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output;
if the parameter values are not completely converted, continuing to execute: and converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data.
Further, the processor 1001 may call the EDID data generation program stored in the memory 1004, and also perform the following operations:
verifying the complete EDID data and judging whether the verification result is qualified;
if the verification result is qualified, executing the following steps: sending the complete EDID data to a port of the display device;
and if the verification result is not qualified, returning error prompt information.
Further, the processor 1001 may call the EDID data generation program stored in the memory 1004, and also perform the following operations:
and checking the values of the first n-1 fields in the n bytes every n bytes, and storing the checking result to the nth byte, wherein n is a positive integer.
Further, the processor 1001 may call the EDID data generation program stored in the memory 1004, and also perform the following operations:
the prompt message comprises at least one of voice prompt message, text prompt message or picture prompt message.
The specific embodiment of the display device of the present invention is the same as the following embodiments of the EDID data generation method, and is not described herein again.
Referring to fig. 2, fig. 2 is a schematic flowchart of a first embodiment of an EDID data generating method according to the present invention, the EDID data generating method including:
and S10, after the display equipment is started, analyzing a preset configuration file, and acquiring parameter values of all parameters in the configuration file.
The terminal in the embodiment of the present invention may be any display device with a display function, and for convenience of description, the display device is taken as an example in the following embodiments. The display device is preset with a configuration file compiled by EDID data. When the display device is started, the display device analyzes a preset configuration file, so as to obtain parameter values of each parameter in the configuration file. The configuration file comprises parameter values such as the name, the size and the numerical value of each field of the EDID data, for example, the Header of the file is EDID-Header, the Header of the file is 8 bytes, and the numerical value is 00FFFFFFFFFFFFFF00; the Manufacturer name is Manufacturer, which is 2 bytes, and the numerical value is SKY; the production stream number is Serial, 4 bytes, the value is 01010101, and so on. After the configuration file is analyzed, the parameter values in the configuration file can be clearly known.
And step S20, converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data.
After the parameter values in the configuration file are obtained, the obtained parameter values need to be converted into a data format supported by the EDID data, for example, in the configuration file, fields such as manufacturer names may be in a data format such as hexadecimal or decimal, but all EDID data in the EDID specification only support a binary data format, so the parameter values in the configuration file need to be converted into a data format supported by the EDID data. According to the EDID specification, EDID data contains a base part and an extension part, both of which have 128 bytes, but the extension part is not necessarily present. The basic part of the EDID data mainly comprises the following parts:
bytes 00H-07H, representing the header of the EDID data, these 8 bytes are fixed, which must equal 0x00 ffffffffffffffffffff 00;
08H-09H byte, representing the manufacturer's ID or name;
0AH-0BH byte, representing product ID;
0CH-0FH byte, representing the production line number;
bytes 10H-11H, representing production time;
bytes 12H-13H representing a version number, e.g. 1.3 is denoted 01, 03;
14H bytes, which represents the type of video input signal, whether it is digital or analog;
15H bytes, representing the maximum horizontal size;
16H bytes, representing the maximum vertical dimension;
17H bytes, representing the display transmission characteristics, i.e. displaying a version of Gamma, such as 2.20;
18 bytes, representing the HDPMS and supported attributes, such as the display type is RGB;
bytes 19H-22H, representing chrominance information;
23H bytes, representing the supported base timing Table 1, such as 640x480@60HZ (IBM, VGA), 800x600@60HZ (VESA);
24H bytes, representing supported base timing Table 2, such as 1024x768@60HZ (VESA);
25H bytes, representing timing information reserved by the manufacturer;
bytes 26H-35H, which represents the supported standard timing table;
bytes 36H-47H, which represents the detailed information description 1 of timing, and this segment is a more detailed description of timing, such as horizontal and vertical image size, whether the refresh mode is interlaced or progressive, etc.;
bytes 48H-59H, which represents timing detail description 2;
5AH-6BH byte, representing timing detail description 3;
6CH-7DH byte, representing detailed information description 4 of timing, these four segments are used to describe detailed information of different timing, description 1 must have, others can be null
7EH byte, which represents the flag bit of the extension part, if 0, the extension part does not exist, and if 1, the extension part also exists behind;
and 7FH bytes, which represent CheckSum check bits, for checking whether the data is illegally altered or whether there is a transmission error.
The extended part of the EDID data mainly includes the following parts:
1. image and sound patterns, such as analog or digital;
2. color modes, such as YCbCr (4;
3. a short timing description, here specifying some timing information that is not described within segment 1. Such as 640x480p @60HZ 4;
4. a short description of sound, such as PCM (2-channel, 32KHZ,44.1HZ,48HZ, 169t, 20bit, 24bit), AC-3, dolby Digital + (6-channel, 32KHZ,44.1KHZ,48KHZ, maximum bit rate 640 kbps), loudspeakers (left and right channels);
5. VSDB: manufacturer specific information, such as CEC physical address, 3D information, deep color information, etc.;
6. CheckSum check bit.
The parameters in the configuration file correspond to different fields in the EDID data one to one, so that the numerical values of the fields in the EDID can be obtained by analyzing the configuration file.
It should be noted that, as another embodiment, the parameters in the configuration file in the present invention may correspond to multiple fields of the EDID data at the same time, and then obtain the values corresponding to the fields according to the parameter names in the parameters. The parameters in the configuration file can be compiled successfully according to the field sequence of the EDID specification, or can be compiled according to a random sequence, and then the configuration file is analyzed.
And step S30, synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output.
And after the converted numerical values of the fields are obtained, the numerical values of the fields are synthesized into complete EDID data, the complete EDID data is sent to the ports, and the ports output the signal source input from the ports according to the complete EDID data and the attribute of the display equipment.
In this embodiment, by analyzing the configuration file preset in the display device, the parameter values of the parameters are obtained from the configuration file, the parameter values are respectively converted into the values of the fields corresponding to the EDID data, and then the values are combined into a complete piece of EDID data, so that the value content of the EDID data is changed into the parameter values in the configuration file, the EDID data maintenance efficiency is improved, and the EDID data modification difficulty is reduced.
Further, referring to fig. 3, fig. 3 is a schematic flowchart of a second embodiment of the EDID data generation method according to the present invention, and based on the embodiment shown in fig. 2, before the step S10, after the display device is powered on, analyzes a preset configuration file, and obtains parameter values of each parameter in the configuration file, the method includes:
step S101, compiling the initial EDID data into a configuration file according to the name of each field and updating the parameter values in the configuration file based on the modification instruction of the user.
Obtaining a numerical value corresponding to each field of initial EDID data preset in display equipment, compiling the obtained numerical value corresponding to each field into a configuration file according to the name of each field, obtaining a modification instruction of a user at the moment, and modifying the configuration file based on the modification instruction of the user, for example, modifying a parameter value of a certain parameter or parameter values of a plurality of parameters, wherein one or more modifications can be performed. And updating the finally modified parameter value.
As another embodiment, the method includes obtaining, by a terminal other than the display device, a value corresponding to each field of the initial EDID data, compiling the obtained value corresponding to each field into a configuration file according to the name of each field, obtaining a modification instruction of the user at this time, and modifying the configuration file based on the modification instruction of the user, for example, modifying a parameter value of a certain parameter or parameter values of multiple parameters, which may be modified once or multiple times, and executing step S102 after the finally modified parameter value is updated.
And S102, storing the updated configuration file to a preset position of the display equipment.
And directly storing the updated configuration file to a preset position of the display equipment, and directly obtaining the configuration file through a control command after the display equipment is started. As another embodiment, the updated configuration file and the system file may be packaged together to generate a producible file, such as a BIN file or an img file, and the producible file is burned to a preset location of the display device, such as a complete machine motherboard, and the system acquires the configuration file through a system command after starting, where the system file is a main file storing an operating system of the display device, and is generally automatically created and placed in a corresponding folder during an operating system installation process.
In the embodiment, the EDID data is compiled into the configuration file, the user only needs to modify the configuration file based on the parameters in the configuration file, and the readability of the configuration file is far greater than that of the EDID data in the binary format, so that the user can modify the EDID data more conveniently, and the modification difficulty is greatly reduced.
Further, after the step S20 converts the parameter value into a numerical value of a corresponding field of the extended display identification EDID data, the method further includes:
step S201, judging whether all the parameter values are converted.
After the parameter values in the configuration file are converted into the values of the fields corresponding to the EDID data, it is necessary to determine whether all the parameter values of the parameters selected by the user are converted. If all the parameter values are converted, the step S30 is executed: synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so that a signal source input from the port is matched with the display equipment for output; if the parameter values are not completely converted, the step S20 is returned to: and converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data.
In the embodiment, the function of automatically judging and generating the EDID data is realized by judging whether all the parameter values are converted and combining the converted values into a complete EDID data after all the parameter values are determined to be converted.
Further, referring to fig. 4, fig. 4 is a schematic flow chart of a third embodiment of the EDID data generating method according to the present invention, and after the step of synthesizing the converted values of the fields into complete EDID data, the method further includes:
and S301, verifying the complete EDID data and judging whether the verification result is qualified.
After the complete EDID data is synthesized, the complete EDID data needs to be verified, specifically, the values of the first n-1 fields in the n bytes are verified every n bytes, and the verification result is stored in the nth byte, where n is a positive integer. For example, in the embodiment where n is 128, the sum of the first 127 bytes must be 0, so the verification is performed according to the following calculation formula: checksum =256- (byte 1+ byte2+. + byte 127)% 256, where byte1, byte2,. And byte127 represent the value of the 1 st byte, the value of the 2 nd byte, and the value of the 127 th byte, respectively, of the 128 bytes. And after calculating to obtain a check result, storing the check result to the 128 th byte. If the check result checksum is qualified, executing step S302; if the check result checksum is not qualified, step S303 is executed.
Step S302, executing the steps of: and transmitting the complete EDID data to a port of the display equipment.
Step S303, an error prompt message is returned.
It should be noted that the prompt information includes at least one of voice prompt information, text prompt information, or picture prompt information. And when the verification result is judged to be unqualified, displaying prompt information on a display interface to provide the EDID data error of the user.
This embodiment judges whether the EDID data has an error through verifying the EDID data to guarantee the accuracy of the EDID data of automatic generation.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where an EDID data generating program is stored, and the EDID data generating program, when executed by a processor, implements the following operations:
after the display equipment is started, analyzing a preset configuration file, and acquiring parameter values of all parameters in the configuration file;
converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data;
and synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output.
Further, the EDID data generating program, when executed by the processor, further implements the following operations:
compiling the numerical values of the corresponding fields of the initial EDID data into configuration files according to the names of the fields, and updating the parameter values in the configuration files based on modification instructions of users;
and storing the updated configuration file to a preset position of the display equipment.
Further, the EDID data generating program, when executed by the processor, further implements the following operations:
acquiring a numerical value corresponding to each field of the initial EDID data;
compiling the obtained numerical values corresponding to the fields into configuration files according to the names of the fields;
and acquiring a modification instruction of a user, and updating the parameter values in the configuration file based on the modification instruction.
Further, the EDID data generating program when executed by the processor further realizes the following operations:
and packaging the updated configuration file and the system file into a producible file, and storing the producible file to a preset position of the display equipment.
Further, the EDID data generating program, when executed by the processor, further implements the following operations:
judging whether all the parameter values are converted;
if all the parameter values are converted, executing the following steps: synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so as to enable a signal source input from the port to be matched with the display equipment for output;
if the parameter values are not completely converted, continuing to execute: and converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data.
Further, the EDID data generating program, when executed by the processor, further implements the following operations:
verifying the complete EDID data and judging whether the verification result is qualified;
if the verification result is qualified, executing the following steps: sending the complete EDID data to a port of the display device;
and if the verification result is not qualified, returning error prompt information.
Further, the EDID data generating program, when executed by the processor, further implements the following operations:
and checking the values of the first n-1 fields in the n bytes every n bytes, and storing the checking result to the nth byte, wherein n is a positive integer.
Further, the EDID data generating program, when executed by the processor, further implements the following operations:
the prompt message comprises at least one of voice prompt message, text prompt message or picture prompt message.
The specific embodiment of the computer-readable storage medium of the present invention is the same as the basis of the embodiments of the EDID data generating method described above, and details are not described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "...," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An EDID data generation method applied to a display device, the EDID data generation method comprising:
after the display equipment is started, analyzing a preset configuration file, and acquiring parameter values of all parameters in the configuration file;
converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data;
synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so that a signal source input from the port is matched with the display equipment for output;
before the step of analyzing a preset configuration file and acquiring parameter values of each parameter in the configuration file after the display device is started, the method includes:
compiling the numerical values of the corresponding fields of the initial EDID data into configuration files according to the names of the fields, and updating the parameter values in the configuration files based on modification instructions of users;
and storing the updated configuration file to a preset position of the display equipment.
2. The EDID data generating method according to claim 1, wherein the step of compiling the initial EDID data into a configuration file by the name of each field and updating the parameter values in the configuration file based on the modification instruction of the user includes:
acquiring a numerical value corresponding to each field of the initial EDID data;
compiling the obtained numerical values corresponding to the fields into configuration files according to the names of the fields;
and acquiring a modification instruction of a user, and updating the parameter values in the configuration file based on the modification instruction.
3. The EDID data generating method according to claim 1, wherein the step of storing the updated configuration file to a preset location of the display device includes:
and packaging the updated configuration file and the system file into a producible file, and storing the producible file to a preset position of the display equipment.
4. The EDID data generating method according to claim 1, wherein after said step of converting the parameter value into a numerical value identifying a corresponding field of the EDID data, further comprising:
judging whether all the parameter values are converted;
if all the parameter values are converted, executing the following steps: synthesizing the converted numerical values of the fields into complete EDID data, and sending the complete EDID data to a port of the display equipment so that a signal source input from the port is matched with the display equipment for output;
if the parameter values are not completely converted, continuing to execute: and converting the parameter value into a numerical value of a field corresponding to the extended display identification EDID data.
5. The EDID data generating method according to claim 1 or 4, further comprising, after the step of synthesizing the converted values of the fields into complete EDID data:
verifying the complete EDID data and judging whether the verification result is qualified;
if the verification result is qualified, executing the following steps: sending the complete EDID data to a port of the display device;
and if the verification result is not qualified, returning error prompt information.
6. The EDID data generating method according to claim 5, wherein the step of verifying the complete EDID data includes:
and checking the values of the first n-1 fields in the n bytes every n bytes, and storing the checking result to the nth byte, wherein n is a positive integer.
7. The EDID data generating method according to claim 5, wherein the prompt information includes at least one of voice prompt information, text prompt information, or picture prompt information.
8. A display device, characterized in that the display device comprises: a port, a memory, a processor, and an EDID data generating program stored on the memory and executable on the processor,
the port is used for inputting a signal source;
the EDID data generating program, when executed by the processor, implements the steps of the EDID data generating method according to any one of claims 1 to 7.
9. A computer-readable storage medium having stored thereon an EDID data generation program, characterized in that the EDID data generation program realizes the steps of the EDID data generation method according to any one of claims 1 to 7 when executed by a processor.
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