CN117640998A - Method and system for collecting multi-channel video data by MVPS (mechanical vapor compression system) series video processing system - Google Patents
Method and system for collecting multi-channel video data by MVPS (mechanical vapor compression system) series video processing system Download PDFInfo
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234345—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440245—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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Abstract
The application provides a method and a system for acquiring multi-channel video data by an MVPS (mechanical vapor compression system) series video processing system, and belongs to the technical field of video processing. The method comprises the following steps: initializing VI equipment; detecting whether the register receives at least one path of video data after the register is configured with the driving parameters of the data acquisition drive, and if so, acquiring resolution system information of the received at least one path of video data; initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, collecting multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images to generate target video data, and collecting the target video data. The video data acquisition method and the video data acquisition device can acquire multiple paths of video data at the same time, occupy fewer CPU resources when the video data are acquired, and solve the problem that higher CPU resources are occupied when the video data are acquired in multiple paths.
Description
Technical Field
The present disclosure relates to the field of video processing technologies, and more particularly, to a method and system for an MVPS-series video processing system to collect multiple paths of video data.
Background
The multipath 4K video encoding and decoding and video processing application has high system resource occupancy rate to the traditional CPU and GPU, so that the execution of other tasks of the CPU and GPU is seriously affected, and how to realize multipath acquisition and display of videos is a difficult problem of the current video processing technology.
Disclosure of Invention
In view of the above problems, the present application proposes a method for an MVPS-series video processing system to collect multiple video data, including:
initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing VI equipment after the drive parameters of the data acquisition drive are configured;
based on the initialized state of the register polled by the VI equipment, whether the register receives at least one path of video data after the drive parameters of the data acquisition drive are configured, and if so, acquiring resolution system information of the received at least one path of video data;
initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, collecting multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images to generate target video data, and collecting the target video data.
Optionally, obtaining resolution system information of the received video data of at least one path includes:
based on the initialized VI equipment, the identity and the configuration information of the register are detected to verify whether the register meets the requirement of collecting multiple paths of video data, if so, the resolution system information of at least one path of video data is detected, and the resolution system information is obtained.
Optionally, based on the initialized VI device, detecting an identity and configuration information of the register to verify whether the register meets a requirement for collecting multiple paths of video data, if the identity information does not meet the requirement for collecting multiple paths of video data, stopping collecting at least one path of video data, and if the configuration information does not meet the requirement for collecting multiple paths of video data, reconfiguring parameters of the register until the configuration information meets the requirement for collecting multiple paths of video data.
Optionally, the method for the MVPS series video processing system to collect multiple paths of video data further includes: after the resolution system information of the video data of at least one path is detected, configuring the chip parameters of the register according to the resolution system information of the video data of at least one path, so that the register outputs a double-edge signal.
Optionally, initializing a VI channel of the VI device according to resolution system information of the at least one path of video data, including
And receiving a double-edge signal, and initializing a VI channel of the VI equipment according to the double-edge signal and the resolution system information.
Optionally, the data processing is performed on the multi-frame image, including:
sequentially receiving one frame of images in the multi-frame images, and processing the sequentially received one frame of images in at least one of the following processing modes: cutting, shielding, scaling or turning to obtain a target frame image of a frame;
and superposing the obtained target frame images of the multiple frames.
Optionally, the method for the MVPS series video processing system to collect multiple paths of video data further includes:
and encapsulating the target video data.
Optionally, the capturing the target video data includes:
and caching the packaged target video data in a register, and taking out the packaged target video data cached in the register by the MVPS series video processing system through an interface connected with the register.
Optionally, the register receives at least one path of video data in a hot plug mode, and if the at least one path of video data is pulled out, the register switches the state into a signal pulling-out state, and the acquisition drive is closed;
and stopping polling the state of the register through the VI equipment after the VI equipment polls the state of the register to be in a pull-out state.
In yet another aspect, the present application proposes a system for a MVPS-series video processing system to collect multiple video data, comprising:
the initialization unit is used for initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing VI equipment after the drive parameters of the data acquisition drive are configured;
the information acquisition unit is used for polling the state of the register based on the initialized VI equipment to detect whether the register receives at least one path of video data after the driving parameters of the data acquisition drive are configured, and if so, the resolution system information of the received at least one path of video data is acquired;
the data acquisition unit is used for initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, acquiring multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images, generating target video data, and acquiring the target video data.
Compared with the prior art, the beneficial effects of this application are:
the application provides a method for an MVPS series video processing system to collect multi-path video data, which comprises the following steps: initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing VI equipment after the drive parameters of the data acquisition drive are configured; based on the initialized state of the register polled by the VI equipment, whether the register receives at least one path of video data after the drive parameters of the data acquisition drive are configured, and if so, acquiring resolution system information of the received at least one path of video data; initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, collecting multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images to generate target video data, and collecting the target video data. The video data acquisition method and the video data acquisition device can acquire multiple paths of video data simultaneously, occupy fewer CPU resources when the video data are acquired, solve the problem that the CPU resources are occupied when the video data are acquired multiple paths, therefore, when the video data are acquired, multiple paths of data acquisition can be performed without occupying more CPU resources, other tasks are prevented from being executed due to influence of the video data acquisition on the CPU, and the tasks can be completed efficiently.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the drawings used in the embodiments of the present application, and it is obvious that the drawings described below are only specific embodiments of the present application, and that a person skilled in the art may obtain other embodiments according to the following drawings without inventive effort.
FIG. 1 is a schematic flow chart of embodiment 1 of the present application;
FIG. 2 is a schematic flow chart of embodiment 2 of the present application;
FIG. 3 is a schematic diagram of an embodiment of example 2 of the present application;
fig. 4 is a schematic diagram of acquiring resolution system information according to embodiment 2 of the present application;
FIG. 5 is a schematic diagram of video processing according to embodiment 2 of the present application;
fig. 6 is a schematic structural diagram of embodiment 3 of the present application.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Detailed Description
The exemplary embodiments of the present application will now be described with reference to the accompanying drawings, however, the present application may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present application and fully convey the scope of the application to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to be limiting of the present application. In the drawings, like elements/components are referred to by like reference numerals.
Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the application proposes a method s100 for an MVPS series video processing system to collect multiple paths of video data, as shown in fig. 1, including:
step s101, initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing VI equipment after the drive parameters of the data acquisition drive are configured;
step s102, polling the state of the register based on the initialized VI device to detect whether the register receives at least one path of video data after configuring the driving parameters of the data acquisition driver, if so, obtaining resolution system information of the received at least one path of video data;
step s103, initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, collecting multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images, generating target video data, and collecting the target video data.
The method for acquiring the resolution system information of the received video data of at least one path comprises the following steps:
based on the initialized VI equipment, the identity and the configuration information of the register are detected to verify whether the register meets the requirement of collecting multiple paths of video data, if so, the resolution system information of at least one path of video data is detected, and the resolution system information is obtained.
And detecting the identity and the configuration information of the register based on the initialized VI equipment to verify whether the register meets the requirement of collecting the multi-path video data, stopping the collection of at least one path of video data if the identity information does not meet the requirement of collecting the multi-path video data, and reconfiguring parameters of the register until the configuration information meets the requirement of collecting the multi-path video data if the configuration information does not meet the requirement of collecting the multi-path video data.
Wherein the method further comprises: after the resolution system information of the video data of at least one path is detected, configuring the chip parameters of the register according to the resolution system information of the video data of at least one path, so that the register outputs a double-edge signal.
Wherein initializing a VI channel of the VI device according to resolution system information of the at least one path of video data includes
And receiving a double-edge signal, and initializing a VI channel of the VI equipment according to the double-edge signal and the resolution system information.
Wherein, carry out data processing to multiframe image, include:
sequentially receiving one frame of images in the multi-frame images, and processing the sequentially received one frame of images in at least one of the following processing modes: cutting, shielding, scaling or turning to obtain a target frame image of a frame;
and superposing the obtained target frame images of the multiple frames.
Wherein the method further comprises:
and encapsulating the target video data.
Wherein, gather the target video data, include:
and caching the packaged target video data in a register, and taking out the packaged target video data cached in the register by the MVPS series video processing system through an interface connected with the register.
The register receives at least one path of video data in a hot plug mode, and if the at least one path of video data is pulled out, the register switches the state into a signal pulling-out state and closes the acquisition drive;
and stopping polling the state of the register through the VI equipment after the VI equipment polls the state of the register to be in a pull-out state.
Example 2:
the application proposes a method s200 for an MVPS series video processing system to collect multiple paths of video data, as shown in fig. 1, including:
step s201, initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing a VI device after the drive parameters of the data acquisition drive are configured;
step S202, polling the state of the register based on the initialized VI equipment to detect whether the register receives at least one path of video data after the drive parameters of the data acquisition drive are configured, and if so, acquiring resolution system information of the received at least one path of video data;
step s203, initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, collecting multiple frame images in the at least one path of video data based on the VI channel, performing data processing on the multiple frame images, generating target video data, and collecting the target video data.
Steps s201-s203 are further described below in conjunction with the principles of the present application, which are shown in fig. 3, and include:
4K high-definition video of double-edge BT.1120 output from an HDMI acquisition chip (a chip of an MVPS series video processing system) is acquired, stored into a designated memory area (a register of the application), then packaged into a standard video frame, and transmitted to the rear end. Specifically, registers of the LT8619C chip, which are homemade, are controlled by operating the I2C control at the ARM end (i.e., VI device end):
3531d (model of VI device end adopted in the application) ARM end polls the state of LT8619C register to detect whether there is video input signal at LT8619 input end and obtain input resolution system, as shown in fig. 4, if there is signal, the configuration of LT8619C chip is set according to resolution system information of signal, so that it outputs double-edge bt.1120 signal.
The ARM end sets up the VI channel input interface parameters of 3531D according to the resolution system information of the video signal, starts the VI channel, and the VI channel of 3531D can read the BT1120 output of LT8619C, and reads the video frame into the DDR memory after a series of image processing of the VI channel, as shown in FIG. 5.
And taking the video frames out of the memory through the interface and sending the video frames to the back end.
The method supports hot plug, when an input signal is pulled out, the LT8619C detects pulling out, the 3531d ARM end is brought to a pulling out state through polling GPIO, VI collection is stopped, the polling state is started from the beginning, and arrival of the signal is waited.
Example 3:
the present application proposes a system 300 for a MVPS-series video processing system to collect multiple video data, as shown in fig. 6, comprising:
an initializing unit 301, configured to initialize a register for acquiring multiple paths of video data, turn on a data acquisition driver of the register, configure driving parameters of the data acquisition driver, and initialize VI equipment after configuring the driving parameters of the data acquisition driver;
the information obtaining unit 302 is configured to poll the state of the register based on the initialized VI device, so as to detect whether the register receives at least one path of video data after the driving parameters of the data acquisition driver are configured, and if yes, obtain resolution system information of the received at least one path of video data;
the data acquisition unit 303 is configured to initialize a VI channel of the VI device according to resolution system information of the at least one path of video data, collect multiple frame images in the at least one path of video data based on the VI channel, perform data processing on the multiple frame images, generate target video data, and collect the target video data.
The method for acquiring the resolution system information of the received video data of at least one path comprises the following steps:
based on the initialized VI equipment, the identity and the configuration information of the register are detected to verify whether the register meets the requirement of collecting multiple paths of video data, if so, the resolution system information of at least one path of video data is detected, and the resolution system information is obtained.
And detecting the identity and the configuration information of the register based on the initialized VI equipment to verify whether the register meets the requirement of collecting the multi-path video data, stopping the collection of at least one path of video data if the identity information does not meet the requirement of collecting the multi-path video data, and reconfiguring parameters of the register until the configuration information meets the requirement of collecting the multi-path video data if the configuration information does not meet the requirement of collecting the multi-path video data.
Wherein the information acquisition unit 302 is further configured to: after the resolution system information of the video data of at least one path is detected, configuring the chip parameters of the register according to the resolution system information of the video data of at least one path, so that the register outputs a double-edge signal.
Wherein initializing a VI channel of the VI device according to resolution system information of the at least one path of video data includes
And receiving a double-edge signal, and initializing a VI channel of the VI equipment according to the double-edge signal and the resolution system information.
Wherein, carry out data processing to multiframe image, include:
sequentially receiving one frame of images in the multi-frame images, and processing the sequentially received one frame of images in at least one of the following processing modes: cutting, shielding, scaling or turning to obtain a target frame image of a frame;
and superposing the obtained target frame images of the multiple frames.
Wherein, the data acquisition unit 303 is further configured to:
and encapsulating the target video data.
Wherein, gather the target video data, include:
and caching the packaged target video data in a register, and taking out the packaged target video data cached in the register by the MVPS series video processing system through an interface connected with the register.
The register receives at least one path of video data in a hot plug mode, and if the at least one path of video data is pulled out, the register switches the state into a signal pulling-out state and closes the acquisition drive;
and stopping polling the state of the register through the VI equipment after the VI equipment polls the state of the register to be in a pull-out state.
The video data acquisition method and the video data acquisition device can acquire multiple paths of video data simultaneously, occupy fewer CPU resources when the video data are acquired, solve the problem that the CPU resources are occupied when the video data are acquired multiple paths, therefore, when the video data are acquired, multiple paths of data acquisition can be performed without occupying more CPU resources, other tasks are prevented from being executed due to influence of the video data acquisition on the CPU, and the tasks can be completed efficiently.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The solutions in the embodiments of the present application may be implemented in various computer languages, for example, object-oriented programming language Java, and an transliterated scripting language JavaScript, etc.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (10)
1. A method for a MVPS-series video processing system to collect multiple video data, the method comprising:
initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing VI equipment after the drive parameters of the data acquisition drive are configured;
based on the initialized state of the register polled by the VI equipment, whether the register receives at least one path of video data after the drive parameters of the data acquisition drive are configured, and if so, acquiring resolution system information of the received at least one path of video data;
initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, collecting multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images to generate target video data, and collecting the target video data.
2. The method according to claim 1, wherein the obtaining resolution system information of the received video data of at least one path includes:
based on the initialized VI equipment, the identity and the configuration information of the register are detected to verify whether the register meets the requirement of collecting multiple paths of video data, if so, the resolution system information of at least one path of video data is detected, and the resolution system information is obtained.
3. The method of claim 2, wherein the initialized VI device detects the identity and configuration information of the register to verify whether the register meets a requirement for collecting multiple video data, if the identity information does not meet the requirement for collecting multiple video data, the collection of at least one path of video data is stopped, and if the configuration information does not meet the requirement for collecting multiple video data, the parameters of the register are reconfigured until the configuration information meets the requirement for collecting multiple video data.
4. The method according to claim 2, wherein the method further comprises: after the resolution system information of the video data of at least one path is detected, configuring the chip parameters of the register according to the resolution system information of the video data of at least one path, so that the register outputs a double-edge signal.
5. The method according to claim 1, wherein initializing VI channels of VI devices according to resolution format information of the at least one path of video data comprises
And receiving a double-edge signal, and initializing a VI channel of the VI equipment according to the double-edge signal and the resolution system information.
6. The method of claim 1, wherein the data processing of the multi-frame image comprises:
sequentially receiving one frame of images in the multi-frame images, and processing the sequentially received one frame of images in at least one of the following processing modes: cutting, shielding, scaling or turning to obtain a target frame image of a frame;
and superposing the obtained target frame images of the multiple frames.
7. The method of claim 1, wherein the method further comprises:
and encapsulating the target video data.
8. The method of claim 1, wherein the capturing the target video data comprises:
and caching the packaged target video data in a register, and taking out the packaged target video data cached in the register by the MVPS series video processing system through an interface connected with the register.
9. The method according to claim 1, wherein the register receives at least one path of video data by hot plug, and if the at least one path of video data is extracted, the register switches the state to a signal extraction state, and the acquisition drive is turned off;
and stopping polling the state of the register through the VI equipment after the VI equipment polls the state of the register to be in a pull-out state.
10. A system for a MVPS-series video processing system to collect multiple video data, the system comprising:
the initialization unit is used for initializing a register for acquiring multi-path video data, opening a data acquisition drive of the register, configuring drive parameters of the data acquisition drive, and initializing VI equipment after the drive parameters of the data acquisition drive are configured;
the information acquisition unit is used for polling the state of the register based on the initialized VI equipment to detect whether the register receives at least one path of video data after the driving parameters of the data acquisition drive are configured, and if so, the resolution system information of the received at least one path of video data is acquired;
the data acquisition unit is used for initializing a VI channel of the VI device according to the resolution system information of the at least one path of video data, acquiring multi-frame images in the at least one path of video data based on the VI channel, performing data processing on the multi-frame images, generating target video data, and acquiring the target video data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311716605.6A CN117640998A (en) | 2023-12-13 | 2023-12-13 | Method and system for collecting multi-channel video data by MVPS (mechanical vapor compression system) series video processing system |
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| CN202311716605.6A CN117640998A (en) | 2023-12-13 | 2023-12-13 | Method and system for collecting multi-channel video data by MVPS (mechanical vapor compression system) series video processing system |
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| CN102625105A (en) * | 2012-03-27 | 2012-08-01 | 广东威创视讯科技股份有限公司 | Multi-channel video encoding and decoding data transmission method and device based on single chip |
| CN110379130A (en) * | 2019-06-28 | 2019-10-25 | 浙江大学 | A kind of Medical nursing shatter-resistant adjustable voltage system based on multi-path high-definition SDI video |
| CN111083412A (en) * | 2019-12-05 | 2020-04-28 | 视联动力信息技术股份有限公司 | Video switching method, video switching device, electronic equipment and storage medium |
| CN116320655A (en) * | 2023-02-24 | 2023-06-23 | 中国船舶集团有限公司第七〇九研究所 | Device and method for sharing multiple bit image information of ship system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102625105A (en) * | 2012-03-27 | 2012-08-01 | 广东威创视讯科技股份有限公司 | Multi-channel video encoding and decoding data transmission method and device based on single chip |
| CN110379130A (en) * | 2019-06-28 | 2019-10-25 | 浙江大学 | A kind of Medical nursing shatter-resistant adjustable voltage system based on multi-path high-definition SDI video |
| CN111083412A (en) * | 2019-12-05 | 2020-04-28 | 视联动力信息技术股份有限公司 | Video switching method, video switching device, electronic equipment and storage medium |
| CN116320655A (en) * | 2023-02-24 | 2023-06-23 | 中国船舶集团有限公司第七〇九研究所 | Device and method for sharing multiple bit image information of ship system |
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