CN113596486A - Data information storage method, reading device, terminal and storage medium - Google Patents
Data information storage method, reading device, terminal and storage medium Download PDFInfo
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- CN113596486A CN113596486A CN202110814346.5A CN202110814346A CN113596486A CN 113596486 A CN113596486 A CN 113596486A CN 202110814346 A CN202110814346 A CN 202110814346A CN 113596486 A CN113596486 A CN 113596486A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2183—Cache memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
Abstract
The invention relates to the field of data storage, in particular to a data information storage method, reading device, terminal and storage medium. The invention firstly divides the data information and then stores the divided data information at the same time. Although the data information of the invention is comparatively large, the invention simultaneously stores the data information after each division, thereby improving the speed of storing the data information, realizing the real-time storage of the data information, and because the invention stores uncompressed data information, the uncompressed data information has no problem of information distortion. The storage method not only solves the problem of real-time storage of the data information, but also solves the problem of distortion caused by storage of compressed data information, namely the storage method of the invention ensures real-time and distortion-free storage of the data information.
Description
Technical Field
The invention relates to the field of data storage, in particular to a data information storage method, reading device, terminal and storage medium.
Background
Data information is generally compressed first and then stored, and the data information is compressed first and then stored, so that the data information can be stored in real time, and the data information is compressed to cause distortion of the data information. In the prior art, data information without distortion is stored instead of being stored at the expense of real-time storage of the data information, and the data information is stored instead of being stored in real time due to distortion.
In summary, it is difficult for the prior art to consider both distortion-free and real-time storage of data information.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a data information storage method, a reading device, a terminal and a storage medium, which solve the problem that the distortion-free and real-time storage of data information are difficult to be considered. In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a data information storage method, including:
acquiring data information to be stored;
dividing the data information to be stored to obtain each piece of divided data information;
and storing the divided data information respectively and simultaneously.
In an implementation manner, the segmenting the data information to be stored to obtain each segmented data information includes:
obtaining video information to be stored according to the data information to be stored;
and segmenting the video information to be stored to obtain each segmented image information.
In an implementation manner, the segmenting the video information to be stored to obtain each segmented image information includes:
and dividing the video information to be stored according to the set frame number to obtain each divided image unit taking the frame as a unit.
In one implementation, the storing the respective pieces of split data information simultaneously includes:
grouping each segmentation image unit according to the number of the set units to obtain a plurality of image groups;
caching the image groups to obtain the cached image groups, wherein the number of the cached image groups is larger than that of the image groups which are being cached;
and simultaneously storing the image units in the image group after caching.
In one implementation mode, each image to be stored corresponding to the video to be stored is obtained according to the video information to be stored;
caching each image to be stored to obtain each cached image to be stored;
and segmenting each cached image to be stored to obtain each segmented image corresponding to each image to be stored.
In one implementation, the segmented images corresponding to the same image to be stored are stored simultaneously.
In a second aspect, the present invention further provides a method for reading data information, including:
acquiring a storage address;
obtaining each segmentation data corresponding to the storage address according to the storage address;
acquiring a segmentation mode corresponding to each segmentation data;
obtaining data information to be read, which is composed of the segmentation data, according to the segmentation data and the segmentation mode;
and reading the data information to be read.
In a third aspect, an embodiment of the present invention further provides a device for a data information storage method, where the device includes the following components:
the data acquisition module is used for acquiring data information to be stored;
the data processing module is used for segmenting the data information to be stored to obtain each segmented data information;
and the data storage module is used for simultaneously storing the divided data information.
In a fourth aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes a memory, a processor, and a data information storage program that is stored in the memory and is executable on the processor, and when the processor executes the uncompressed data information storage program, the steps of the data information storage method described above are implemented.
In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a data information storage program, and when the uncompressed data information storage program is executed by a processor, the method implements the steps of the data information storage method.
Has the advantages that: the invention firstly divides the data information and then stores the divided data information at the same time. Although the data information of the invention occupies a larger space compared with the prior art that the data is compressed and stored, the invention simultaneously stores the data information after being divided, thereby improving the speed of storing the data information and realizing the real-time storage of the data information.
In summary, the storage method of the present invention not only solves the problem of real-time storage of data information, but also solves the problem of distortion caused by storage of compressed data information, that is, the storage method of the present invention ensures real-time and distortion-free storage of data information.
Drawings
FIG. 1 is an overall flow chart of the present invention;
FIG. 2 is a hardware circuit diagram of the present invention;
FIG. 3 illustrates a first division and storage according to the present invention;
fig. 4 shows a second division method and a storage method thereof according to the present invention.
Detailed Description
The technical scheme of the invention is clearly and completely described below by combining the embodiment and the attached drawings of the specification. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Research shows that data information is generally compressed first and then stored, and the data information is compressed first and then stored, so that the data information can be stored in real time, and the data information is compressed to cause distortion of the data information. In the prior art, data information without distortion is stored instead of being stored at the expense of real-time storage of the data information, and the data information is stored instead of being stored in real time due to distortion. The prior art is difficult to give consideration to both distortion-free and real-time storage of data information.
In order to solve the technical problems, the invention provides a data information storage method, a reading device, a terminal and a storage medium, which solve the problem that the distortion-free and real-time storage of data information are difficult to be considered. In specific implementation, the data information to be stored is firstly acquired, then the data information to be stored is divided, and finally all the divided data information formed after division is stored at the same time. The storage method not only solves the problem of real-time storage of the data information, but also solves the problem of distortion caused by storage of compressed data information, namely the storage method of the invention ensures real-time and distortion-free storage of the data information.
For example, a non-compressed data information to be stored is obtained, and the data information to be stored is not compressed, so that the data information to be stored has no distortion problem, but because the data information to be stored is not compressed, the occupied memory is large, and a large amount of time is consumed when the data information to be stored is stored, so that real-time storage cannot be realized. According to the embodiment, uncompressed data information to be stored is firstly averagely divided, each divided data information formed after division is much smaller than the content occupied by the previous complete data information to be stored, and then each divided data information is stored simultaneously, so that the time required by storage can be saved, and the purpose of real-time storage is further realized. In addition, the embodiment stores uncompressed data information, so that the problem of data distortion does not exist. From the above analysis, it can be seen that the present embodiment combines real-time storage and distortion-free data storage.
Exemplary method
The name method of the embodiment can be applied to terminal equipment, and the terminal equipment can be a terminal product with a storage function. In this embodiment, as shown in fig. 1, the data information storage method specifically includes the following steps:
s100, acquiring data information to be stored;
the embodiment directly stores the uncompressed data information to be stored, and the uncompressed data information to be stored has a large file, but the uncompressed data information to be stored does not cause information distortion. The data information to be stored in the embodiment may be video stream data shot by an 8K camera, or may be data information in other forms. In this embodiment, taking video stream data captured by an 8K camera as an example, the 8K camera is packaged according to a protocol (high definition multimedia interface) of HDMI/DP, and then transmitted to an FPGA (field programmable gate array) through the HDMI/DP interface, and the FPGA parses the video data to obtain uncompressed video stream data to be stored.
S200, segmenting the data information to be stored to obtain each segmented data information;
the data to be stored in the embodiment is not compressed, the file is large, and the large data to be stored is divided into the divided data information with the same size.
When the data information to be stored is video information to be stored, the specific step of step S200 is step S201:
s201, dividing the video information to be stored according to a set frame number to obtain each divided image unit taking a frame as a unit.
The video information to be stored can be segmented according to one frame of image to obtain each segmented image contained in the video information to be stored, that is, the video information to be stored is segmented into one frame of image, and the video information to be stored can also be segmented according to two frames of images.
Alternatively, when the data information to be stored is video information to be stored, the specific steps of step S200 may also be step S202, step S203, and step S204:
s202, obtaining each image to be stored corresponding to the video to be stored according to the video information to be stored;
s203, caching each image to be stored to obtain each cached image to be stored;
and S204, segmenting each cached image to be stored to obtain each segmented image corresponding to each image to be stored.
Each image to be stored corresponds to one frame of image in the video information to be stored, one frame of image in the video information to be stored is firstly extracted, the frame of image is segmented to obtain each segmented image of the frame of image, then the images of other frames are segmented until the images of all the frames in the video information to be stored are segmented, and the segmentation of the video information to be stored is completed.
For example, the following examples are used to illustrate the specific processes of the two division modes in step S200:
the first division method, that is, the division method in step S201: the video information to be stored is divided into images of one frame and one frame to obtain each divided image unit (each divided image unit only comprises one frame image) by taking the frame as a unit, or the divided image units (each divided image unit comprises two frame images) are obtained by dividing according to two frame images.
The second division method, which is a division method configured by step S202 and step S203: firstly, one image (a frame image) in the video information to be stored is extracted, the image is divided into N parts with equal size, and then other images are equally divided into N parts, so that each image is equally divided into N parts, and the storage of the divided images by subsequent hardware equipment is facilitated.
The first type of the two segmentation modes can realize rapid segmentation to save the time for segmenting the image, so that the time used by the whole storage method is saved, and real-time storage is realized; the second can reduce the storage pressure for subsequent simultaneous storage of images after segmentation.
S300, storing the segmentation data information respectively and simultaneously;
when the image is divided in the manner of step S201, step S300 includes:
s301, grouping each image segmentation unit according to the number of set units to obtain a plurality of image groups;
one divided image unit has one frame image, and one image group has one divided image unit, that is, one image group has one frame image. It is also possible that there are two images in one divided image unit and two divided image units in one image group, i.e., there are four images in one image group. Alternatively, one divided image unit only contains one frame image, and one image group has four divided image units, that is, one image group has four frame images.
S302, caching a plurality of image groups to obtain the cached image groups, wherein the number of the cached image groups is larger than that of the image groups which are being cached;
according to the embodiment, two image groups are cached simultaneously, one image group comprises four frames of images generated after the video information to be stored is segmented, the pressure of subsequent image storage units can be relieved by caching the image group, and the cached image group is ensured to be continuously provided.
S303, storing the image units in the image group after caching simultaneously.
The present embodiment is to store four frames of images in one image unit of one of the two image groups in step S302 at the same time. Since the four frames of images generated by the segmentation are stored simultaneously, the purpose of real-time storage is achieved, namely the video information to be stored can be stored while the video information to be stored is acquired.
When the image is divided in the manner of steps S202, S203, S204, step S300 includes:
and S304, simultaneously storing the segmentation images corresponding to the same image to be stored respectively.
For example, in steps S202, S203, and S204, each image is cached first, and then each image is divided after caching, in this embodiment, two images are cached simultaneously, one image cached after caching is divided, the image is divided into four parts to obtain four divided images, the four divided images are stored simultaneously, and one divided image is stored.
The four segmented images of the same frame image (one image) are stored simultaneously, so that the segmented images can be conveniently and completely restored into one frame image after being subsequently read, namely the four segmented images of the same frame image are stored simultaneously, and the video information after being segmented can be conveniently restored into complete video information.
The present embodiment further provides a method for reading video information based on the above-mentioned segmented video data information, where the method includes:
s400, acquiring a storage address;
the storage address of each segmented image in step S300 is obtained in this embodiment.
S500, obtaining each segmentation data corresponding to the storage address according to the storage address;
and finding each segmented image according to the storage address of S400.
S600, acquiring a segmentation mode corresponding to each segmentation data;
the step S200 includes two segmentation methods, one is to segment the video into one frame and one frame of image for storage, and the other is to segment the video into one sub-image containing one frame of image, and then segment the sub-image into four segmented images. When the stored video is read, firstly, which of the two segmentation methods is obtained, and the segmented video is convenient to read and store after the segmentation method is known.
S700, obtaining data information to be read, which is composed of the segmentation data, according to the segmentation data and the segmentation mode;
and splicing scattered images generated after the segmentation after the storage according to the segmentation mode of the step S200 to acquire the same video data information as before the storage.
And S800, reading the data information to be read.
After the splicing in step S700 is completed, the external device reading the video can read the video data information in step S700.
The following describes a method for storing uncompressed data information and a method for reading data information after division according to the present embodiment, taking an 8K lossless camera as an example:
the first explanation is why the video information captured by the camera is compressed and the impact of the compression: the pixel number of the 8K ultra-high-definition video is 7680 multiplied by 4320, the file size of the 8K60Hz lossless uncompressed video is very large, the bandwidth required by real-time storage of the 8K lossless uncompressed video in the recording process of the camera is 7.2GB/s, and the size of the 1-minute 8K60Hz lossless uncompressed video file is 360 GB. Compared to the 8K lossless uncompressed video file size, a greater challenge for an 8K lossless video uncompressed memory is to meet its extremely high bandwidth requirements for real-time write memory. In view of the requirements of lossless uncompressed video real-time storage on large capacity and high bandwidth of storage equipment, video cameras on the market at present are compressed when storing real-time images in the recording process, so that the original image quality (video data information distortion) during shooting cannot be restored by a playing end. If the camera performs video recording at 8K60Hz24bpp (bpp denotes the number of bits used per pixel, e.g. 24bpp denotes 24 bits per pixel, 30bpp denotes 30 bits per pixel, 36bpp denotes 36 bits per pixel), the bandwidth required for compressed storage is typically less than 25MB/s, but the bandwidth required for lossless and uncompressed storage of video data information is about 7.2GB/s, which is hundreds of times the bandwidth required for lossless and uncompressed storage of video data information. Lossless and uncompressed storage of video requires extremely high bandwidth on memory. Although lossless uncompressed stored video data information has the disadvantage of large bandwidth, the image quality of the lossless uncompressed video played by a back-end playing device is incomparable with that of the compressed video (the uncompressed video data information has no distortion).
From the above analysis, the real-time storage and distortion-free storage of uncompressed video data information are two contradictory problems, and the following describes the specific process of the method of the present invention to solve the above problems:
the invention takes an FPGA chip as a core, and solves the bandwidth problem of 8K lossless video storage (the bandwidth limits the real-time property, and the real-time property problem of the invention is solved by solving the bandwidth problem) by matching four SSD (solid state disk). Although the bandwidth of a single SSD does not meet the bandwidth requirement of 8K video storage, the bandwidth of the storage can be increased by operating four SSDs in parallel by utilizing the characteristic of parallel operation of the FPGA (after the bandwidth is increased, images after being divided can be stored at the same time to solve the problem of real-time performance), so that the bandwidth requirement of the 8K video storage can be met. The bandwidth requirement of 8K video storage is 7.2GB/s, assuming that the bandwidth of a single SSD is nGB/s, and the number of SSDs to be collocated is m (m is a positive integer), then m and n need to satisfy m × n >7.2GB/s (7.2GB/s is the minimum requirement for bandwidth when an 8K camera stores video in real time), and the current SSD bandwidth on the market is generally less than 3.5GB/s, so it will be described next with n being 2 and m being 4 as an example, 4 corresponds to dividing each frame image into four parts in this embodiment, and dividing video information into four divided images corresponding to this embodiment.
A hardware circuit corresponding to the 8K lossless non-compressed video storage in this embodiment is shown in fig. 2, and the hardware circuit includes an FPGA, a video frame cache module, a first solid state disk, a second solid state disk, a third solid state disk, and a fourth solid state disk (four solid state disks correspond to four divided images in this embodiment), and the video frame cache module and the four solid state disks are respectively connected with the FPGA in two directions. The FPGA is also connected with a display screen and a key.
The method for simultaneously controlling the plurality of solid state disks to achieve high read-write bandwidth can meet the high bandwidth requirement of a camera for lossless and uncompressed video storage. The storage scheme of the invention adopts an FPGA scheme, and by utilizing the characteristics of parallel execution and flexible programming of the FPGA, the storage of larger videos such as 8K120Hz, 16K30Hz, 16K60Hz and the like can be realized only by changing the number of the control solid state disks.
The invention is provided with keys to support the control of the switching of the storage mode by the control keys, and the display screen displays the current storage state.
The video stream data of the front-end camera is packaged according to the HDMI/DP protocol, and then transmitted to the FPGA through the HDMI/DP interface, the FPGA analyzes the video data and stores the video data in a video frame buffer module (the video frame buffer module may be DDR3 or DDR4), and then the two segmentation modes and the corresponding storage modes included in step S200 are performed:
the first division mode and the corresponding storage mode are as follows: as shown in fig. 3, cutting is performed by frame, every four frames of images are regarded as a group, every two groups of data are read and written in a video frame buffer module, and when the video frame buffer module is read out, the four frames of images of each group are read out simultaneously and written in each solid state disk respectively, that is, a first frame of image is written in a first solid state disk, a second frame of image is written in a second solid state disk, an N-1 th frame of image is written in a N-1 th solid state disk, and an N-th frame of image is written in a N-th solid state disk. The number of the solid state disks is the same as the number of image frames included in each group of images.
The second division mode and the corresponding storage mode are as follows: as shown in fig. 4, a frame of image is cut, two frames of images are read and written in a video frame buffer module, the number of image frames required to be buffered by the video frame buffer module is less than that of the first frame, and the frame of image from the video frame buffer module is cut into N divided images, and then the N divided images are stored in N solid state disks respectively. The intra-frame cutting method is not limited to one, and the cutting method may be performed in a row of pixels of one frame image, or may be performed in a column of pixels of one frame image, and the cutting method may be performed in a suitable manner. The number of the solid state disks is the same as the number of the image segmentation of one frame.
Reading out the segmentation image from the solid state disk: in the embodiment, the video file is read from each solid state disk through a set of self-defined protocol. The FPGA acquires the number or address of each solid state disk and the data length requirement in the solid state disk according to a custom protocol, reads the video data from the solid state disk according to the information, and then packs the video data according to the protocol. Each data packet consists of a packet header, video file data and a check code. The header contains the type (video data or text data) and length information of the data packet, the video file data is valid video data in the solid state disk, and the check code is used for judging whether the data is wrong in transmission.
In summary, the present invention firstly divides the uncompressed data information, and then stores the divided data information at the same time. Although the uncompressed data information of the invention is larger than the compressed data information, the invention simultaneously stores the data information after each division, thereby improving the speed of storing the data information, and realizing the real-time storage of the data information. The storage method not only solves the problem of real-time storage of the data information, but also solves the problem of distortion caused by storage of compressed data information, namely the storage method of the invention ensures real-time and distortion-free storage of the data information.
Exemplary devices
The embodiment also provides a device of the data information storage method, and the device comprises the following components:
the data acquisition module is used for acquiring data information to be stored;
the data processing module is used for segmenting the data information to be stored to obtain each segmented data information;
a data storage module for simultaneously storing the divided data information
Based on the above embodiment, the present invention further provides a device, where the terminal device includes a device memory, a processor, and a data information storage program that is stored in the memory and is executable on the processor, and when the processor executes the uncompressed data information storage program, the steps of the data information storage method are implemented.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, the present invention discloses a data information storage method, reading device, terminal and storage medium, wherein the method comprises: acquiring data information to be stored; dividing the data information to be stored to obtain each piece of divided data information; and storing the divided data information respectively and simultaneously. The storage method not only solves the problem of real-time storage of the data information, but also solves the problem of distortion caused by storage of compressed data information, namely the storage method of the invention ensures real-time and distortion-free storage of the data information.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for storing data information, comprising:
acquiring data information to be stored;
dividing the data information to be stored to obtain each piece of divided data information;
and storing the divided data information respectively and simultaneously.
2. The data information storage method of claim 1, wherein the dividing the data information to be stored to obtain each divided data information comprises:
obtaining video information to be stored according to the data information to be stored;
and segmenting the video information to be stored to obtain each segmented image information.
3. The data information storage method of claim 2, wherein the segmenting the video information to be stored to obtain each segmented image information comprises:
and dividing the video information to be stored according to the set frame number to obtain each divided image unit taking the frame as a unit.
4. The data information storage method according to claim 3, wherein storing the pieces of divided data information simultaneously, respectively, comprises:
grouping each segmentation image unit according to the number of the set units to obtain a plurality of image groups;
caching the image groups to obtain the cached image groups, wherein the number of the cached image groups is larger than that of the image groups which are being cached;
and simultaneously storing the image units in the image group after caching.
5. The data information storage method of claim 2, wherein the segmenting the video information to be stored to obtain each segmented image information comprises:
obtaining each image to be stored corresponding to the video to be stored according to the video information to be stored;
caching each image to be stored to obtain each cached image to be stored;
and segmenting each cached image to be stored to obtain each segmented image corresponding to each image to be stored.
6. The data information storage method according to claim 5, wherein said storing the respective pieces of divided data information simultaneously comprises:
and simultaneously storing all the segmentation images corresponding to the same image to be stored respectively.
7. A method for reading data information, comprising:
acquiring a storage address;
obtaining each segmentation data corresponding to the storage address according to the storage address;
acquiring a segmentation mode corresponding to each segmentation data;
obtaining data information to be read, which is composed of the segmentation data, according to the segmentation data and the segmentation mode;
and reading the data information to be read.
8. An apparatus for a data information storage method, the apparatus comprising:
the data acquisition module is used for acquiring data information to be stored;
the data processing module is used for segmenting the data information to be stored to obtain each segmented data information;
and the data storage module is used for simultaneously storing the divided data information.
9. A terminal device, characterized in that the terminal device comprises a memory, a processor and a data-information storing program stored in the memory and executable on the processor, and the processor, when executing the uncompressed data-information storing program, implements the steps of the data-information storing method according to any one of claims 1 to 6.
10. A computer-readable storage medium, having stored thereon a data-information storage program which, when executed by a processor, implements the steps of the data-information storage method of any one of claims 1-6.
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| CN114339379A (en) * | 2021-12-30 | 2022-04-12 | 深圳市巨烽显示科技有限公司 | Multi-window ultra-low delay video signal processing method, apparatus, device and medium |
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