CN113660460A - Camera data distribution method and system, computer storage medium and electronic equipment - Google Patents
Camera data distribution method and system, computer storage medium and electronic equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
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- H—ELECTRICITY
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- 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
- H04N21/440218—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 transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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- 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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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
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- Engineering & Computer Science (AREA)
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Abstract
The invention provides a camera data distribution method, a camera data distribution system, a computer storage medium and electronic equipment. The invention receives one or more data acquisition requests sent by the application program, executes data acquisition and transmission processes aiming at each data acquisition request, and when receiving the multiple data acquisition requests sent by the application program, the target camera information carried in the multiple data acquisition requests is completely the same, partially the same or different, and executes the data acquisition and transmission processes aiming at each data acquisition request simultaneously. By adopting the method and the device, the control and access of the application program on the vehicle-mounted terminal to the camera are realized, the camera data of one or more cameras can be simultaneously and accurately distributed and transmitted to one or more application programs, the design limit that the existing camera monopolizes the access is broken, the efficiency of the distribution of the camera data is improved, and the driving and riding experience is greatly enriched.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted entertainment information systems, in particular to a camera data distribution method, a camera data distribution system, a computer storage medium and electronic equipment.
Background
The vehicle-mounted terminal has the requirement that a plurality of cameras are connected simultaneously, and the plurality of cameras can be a vehicle-mounted front camera, a vehicle-mounted built-in camera, a user rear camera (such as a vehicle event data recorder) and the like. There is also a need for a plurality of applications to acquire data of the same camera at the same time on the vehicle-mounted terminal, for example, a camera application, an AR navigation application, a live broadcast application, a gaze tracking application, a FaceID application, and other applications need to acquire one camera (e.g., a vehicle-mounted built-in camera) at the same time. However, the existing camera access scheme based on the android system is designed for the application scene of the traditional mobile phone, data of one camera can only be monopolized (controlled and accessed) by a single application program, the requirement of practical application cannot be met, the use experience of a user is reduced, and the design greatly limits innovation of application development based on the camera on the vehicle-mounted terminal.
Disclosure of Invention
In view of the above technical problems, a camera data distribution method, system, computer storage medium and electronic device are proposed that solve the above problems or at least partially solve the above problems.
An object of the first aspect of the present invention is to provide a method for distributing camera data, so as to distribute the camera data of one or more cameras to a plurality of applications simultaneously and accurately, thereby greatly enriching the driving and riding experience.
It is a further object of the first aspect of the present invention to perform parameter adjustment on camera data directly output by a target camera, so as to meet the requirements of different applications.
A second aspect of the present invention is to provide a camera data distribution system.
A third aspect of the present invention is to provide a computer storage medium.
A fourth aspect of the present invention is to provide an electronic apparatus.
In particular, according to a first aspect of the present invention, the present invention provides a camera data distribution method applied to a vehicle-mounted terminal, the vehicle-mounted terminal being connected with at least one camera, and an application program being installed on the vehicle-mounted terminal, the method including:
receiving one or more data acquisition requests sent by one or more application programs, wherein each data acquisition request carries input parameters required by a target application program and target camera information, and each target application program is the application program which correspondingly sends each data acquisition request;
for each data acquisition request, performing a data acquisition and transmission process, the data acquisition and transmission process comprising:
acquiring initial data collected by a target camera from the target camera according to the target camera information;
obtaining data to be transmitted which meets the requirements of a target application program based on initial data acquired by a target camera according to input parameters;
generating a transmission interface corresponding to the target application program according to the data acquisition request, and transmitting the data to be transmitted to the target application program through the transmission interface;
when data acquisition requests sent by multiple application programs are received, target camera information carried in the data acquisition requests is completely the same, partially the same or different, and data acquisition and transmission processes are executed simultaneously aiming at the data acquisition requests.
Optionally, before acquiring the initial data collected by the target camera from the target camera according to the target camera information, the data acquiring and transmitting process further includes:
acquiring an available camera list, and judging whether a target camera is available according to the available camera list and target camera information;
and if the target camera is available, executing the step of acquiring initial data collected by the target camera from the target camera according to the target camera information.
Optionally, obtaining data to be transmitted that meets the requirement of the target application program based on the initial data acquired by the target camera according to the input parameters includes:
acquiring an output parameter of a target camera and an input parameter required by a target application program;
comparing the output parameters of the target camera with the input parameters required by the target application program;
and if the output parameters of the target camera are different from the input parameters required by the target application program, performing parameter adjustment on the initial data to obtain the data to be transmitted which meets the requirements of the target application program.
Optionally, acquiring initial data collected by the target camera from the target camera includes:
detecting whether a target camera is started or not;
if the target camera is not started, generating a camera starting command, sending the camera starting command to the target camera to start the target camera, generating a coder-decoder corresponding to the target camera, and acquiring initial data from the target camera;
and if the target camera is started, directly acquiring initial data from the target camera.
Optionally, the output parameters and the input parameters both comprise data formats;
if the output parameters of the target camera are different from the input parameters required by the target application program, performing parameter adjustment on the initial data, including:
and if the data format of the target camera is different from the data format required by the target application program, adjusting the data format of the initial data by using a coder-decoder corresponding to the target camera.
Optionally, the output parameters and the input parameters each comprise a resolution;
if the output parameters of the target camera are different from the input parameters required by the target application program, performing parameter adjustment on the initial data, including:
and if the resolution of the target camera is different from the resolution required by the target application program, generating a cutter, and adjusting the resolution of the initial data by using the cutter.
Optionally, after the data to be transmitted is transmitted to the target application, the data acquiring and transmitting process further includes:
detecting whether a target camera is being used by other application programs;
if yes, releasing the transmission interface;
and if not, releasing the coder and the decoder and the transmission interface.
According to a second aspect of the present invention, the present invention also provides a camera data distribution system, including:
the camera is used for acquiring camera data; and
and the vehicle-mounted terminal comprises a data distribution and transmission control module, and the data distribution and transmission control module is used for executing the camera data distribution method in any one of the preceding items.
According to a third aspect of the present invention, the present invention also provides a computer storage medium storing computer program code which, when run on a computing device, causes the computing device to perform the camera data distribution method of any one of the preceding.
According to a fourth aspect of the present invention, the present invention also provides an electronic apparatus comprising:
a processor;
a memory storing computer program code which, when executed by the processor, causes the electronic device to perform the camera data distribution method of any of the preceding.
The invention receives one or more data acquisition requests sent by application programs, executes data acquisition and transmission processes aiming at the data acquisition requests, and when receiving the data acquisition requests sent by a plurality of application programs, target camera information carried in the data acquisition requests is completely the same, partially the same or different, and executes the data acquisition and transmission processes aiming at the data acquisition requests simultaneously, that is, the embodiment of the invention can execute the data acquisition and transmission processes in parallel for the data acquisition requests, thereby not only realizing the control and access of one or more application programs on at least one camera on a vehicle-mounted terminal, but also simultaneously and accurately distributing the camera data of one or more cameras to one or more application programs, breaking the design limit of the existing application programs on the exclusive access of the camera, thereby greatly enriching the driving and riding experience.
Furthermore, in the process of distributing the camera data of one or more cameras to one or more application programs, the invention can generate a coder-decoder and a clipper so as to adjust the parameters of the initial data collected by the target camera, so that one or more application programs can acquire the respective required camera data, thereby meeting the requirements of different application programs.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic block diagram of a camera data distribution system according to one embodiment of the present invention;
FIG. 2 is a schematic flow diagram of a camera data distribution method according to one embodiment of the invention;
FIG. 3 is a schematic flow diagram of a data acquisition and transmission process according to one embodiment of the present invention;
FIG. 4 is a schematic detailed flow chart diagram of a camera data distribution method according to another embodiment of the present invention;
FIG. 5 is a schematic block diagram of an electronic device according to one embodiment of the invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 is a schematic block diagram of a camera data distribution system 100 according to one embodiment of the present invention. Referring to fig. 1, the camera data distribution system 100 may include at least one camera 110 and a vehicle-mounted terminal 120 connected to the at least one camera 110.
The in-vehicle terminal 120 has an application 121 installed thereon, where the application 121 may be one or more, and is not limited herein. The application programs 121, for example, may include a camera application, an AR navigation application, a live application, a gaze tracking application, a FaceID application, and the like.
Further, the Vehicle-mounted terminal 120 may be a Vehicle, a DHU (integrated machine of entertainment host and meter), an IHU (information entertainment Unit), an IVI (In-Vehicle information entertainment system), or any Vehicle-mounted information interaction terminal.
The at least one camera 110 may be one camera 110 or a plurality of cameras 110. At least one camera 110 may be used to collect camera data. The camera data is initial data collected by the target camera. The target camera is a target camera corresponding to target camera information carried in a data acquisition request sent by one or more of the plurality of application programs on the vehicle-mounted terminal 120. The information of the driving condition in the vehicle, the operation of the driver, the facial expression of the driver, the scene around the vehicle and the like can be recorded in a picture or video mode through the at least one camera 110, so that safety guarantee is provided for the driving of the vehicle. The camera 110 may be an in-vehicle camera, such as an in-vehicle front-facing camera, an in-vehicle built-in camera. The camera 110 may also be a post-consumer camera, such as a tachograph.
The in-vehicle terminal 120 may further include a data distribution transmission control module 122. The data distribution transmission control module 122 may be configured to execute the camera data distribution method in any one of the embodiments described below, so as to simultaneously and accurately distribute and transmit the camera data of at least one camera 110 to the application 121 for use.
In some embodiments, the data distribution transmission control module 122 is provided with a camera data transmission unit 123. The camera data transmission unit 123 may be used to define and implement a software interface for how a set of cameras access to the in-vehicle terminal 120, and as long as all cameras conforming to the software interface can access to the in-vehicle terminal 120. The camera data transmission unit 123 can implement various functions, such as a function of turning on/off the camera, a function of transmitting camera data, a function of setting an output parameter of the camera, a function of recording and photographing, a function of controlling a camera pan and tilt, and the like.
In practical applications, there are often situations where the camera data directly output by the camera 110, that is, the initial data collected by the camera cannot meet the requirements of the application program. For example, when both a VR navigation application and a live application want to access a front-mounted camera in a vehicle, it is known that the VR navigation application requires picture format data with a resolution of 480P, the live application requires video format data with a resolution of 720P, and the front-mounted camera in the vehicle can only output video format data with a resolution of 1080P. For this case, in some embodiments of the present invention, the in-vehicle terminal 120 may also be provided with a codec 124. The codec 124 may perform codec processing on the initial data acquired by at least one camera 110 to obtain camera data meeting one or more requirements in the corresponding application 121, so that one or more of the application 121 may obtain the respective required camera data. Meanwhile, the access efficiency of the application 121 to the at least one camera 110 is greatly improved, and errors are not prone to occur.
Further, the codec 124 has an encoding function and a decoding function. The encoding function of the codec 124 may convert the picture format data into video format data. The decoding function of the codec 124 may convert the video format data into picture format data. Specifically, it may be determined whether to perform encoding processing or decoding processing on the initial data acquired by the camera according to the encoding and decoding requirements in practical applications. For example, the application 121 requires picture format data (such as YUV, JPG), but the camera 110 that the application 121 wants to access, that is, the target camera can only give but is video format data (e.g., H264), and in order to meet the requirement of the application 121, the video format data can be decoded. Specifically, the codec 124 may be provided on the in-vehicle terminal 120 to convert the video format data into the picture format data by using the decoding function of the codec 124, so that the application 121 acquires the required picture format data to meet the data format requirement of the application 121. On the contrary, if the application 121 requires video format data (e.g. H264), and the camera 110 only provides picture format data (e.g. YUV, JPG), the picture format data can be encoded. Specifically, the codec 124 may be provided on the in-vehicle terminal 120 to convert the picture format data into video format data by using the encoding function of the codec 124, so that the application 121 acquires the required video format data to meet the data format requirement of the application 121.
Considering that the resolution of the camera data required by the application 121 may be different from the resolution of the camera data directly output by the camera 110, in some embodiments of the invention, a clipper 125 may be further disposed on the in-vehicle terminal 120. The cropper 125 may be used to crop, i.e., adjust the resolution, the camera data directly output by the camera 110, so that the application 121 obtains the camera data with the required resolution to meet the resolution requirement of the application 121.
The codec 124 does not change the resolution of the camera data output by the camera 110, and in other embodiments of the present invention, the cropper 125 may also adjust the resolution of the original data that is coded and decoded by the codec 124 to meet the resolution requirement of the application 121.
In order to facilitate the transmission of the camera data to the application programs 121, the data distribution transmission control module 122 generates a transmission interface 126 between each application program 121 and the camera 110 that the application program wants to access according to each data acquisition request after receiving the data acquisition request sent by one or more of the application programs 121. Each data acquisition request carries input parameters required by a target application program and target camera information, wherein each target application program is the application program which correspondingly sends each data acquisition request. That is, each transmission interface 126 is generated during the process of accessing the camera 110 by each target application, and corresponds to each target application, that is, each target application generates a unique transmission interface 126 during the process of accessing the camera 110. Each data to be transmitted that meets the requirements of each target application can be transmitted to each target application through the transmission interface 126 unique to each target application, so as to meet the requirements of the upper-layer application 121.
Further, the data distribution transmission control module 122 is also provided with an application acquisition camera data unit 127. The application program acquisition camera data unit 127 is in communication connection with the application program 121 on the upper layer, and the application program acquisition camera data unit 127 can realize various functions, such as a function of acquiring an available camera list, a function of turning on/off a camera, a function of transmitting camera data, a function of setting output parameters of the camera, a function of recording and taking pictures, a function of controlling a camera pan-tilt, and the like. The available camera list may include camera information of available cameras currently accessed to the in-vehicle terminal 120, and the camera information of each available camera may be known through the available camera list. The camera information may include, for example, information such as a camera type, a camera usage scenario, and a camera output parameter, and whether the target camera is available may be determined by the available camera list and the target camera information carried in the data acquisition request.
Alternatively, the available camera list may be acquired by the application acquiring camera data unit 127.
Fig. 2 is a schematic flow chart of a camera data distribution method according to an embodiment of the present invention. The camera data distribution method can be applied to the vehicle-mounted terminal 120 and is used for simultaneously and accurately distributing the camera data of one or more cameras connected with the vehicle-mounted terminal 120 to the application programs transmitted to the vehicle-mounted terminal 120. Referring to fig. 2, the camera data distribution method may include steps S202 to S204 as follows.
Step S202, receiving one or more data acquisition requests sent by one or more applications, where each data acquisition request may carry input parameters and target camera information required by a target application, where each target application is the application that correspondingly sends each data acquisition request.
Step S204, executing data acquiring and transmitting processes for each data acquiring request, wherein when receiving multiple data acquiring requests sent in an application program, target camera information carried in the multiple data acquiring requests may be completely the same, partially the same, or different, and the data acquiring and transmitting processes are executed for each data acquiring request at the same time.
In the camera data distribution method of this embodiment, one or more sent data acquisition requests in the application program may be received, and then data acquisition and transmission processes are performed for each data acquisition request, and when multiple sent data acquisition requests in the application program are received, target camera information carried in the multiple data acquisition requests is completely the same, partially the same, or different, and the data acquisition and transmission processes are simultaneously performed for each data acquisition request, that is, the embodiment of the present invention may perform the data acquisition and transmission processes for each data acquisition request in parallel, thereby not only realizing control and access of one or more application programs on the vehicle-mounted terminal 120 to at least one camera, but also being capable of simultaneously and accurately distributing camera data of one or more cameras to upper-layer application programs, design limitation of exclusive access of the existing application program to the camera is broken, and therefore driving and riding experience is greatly enriched.
Fig. 3 is a schematic flow diagram of a data acquisition and transmission process according to one embodiment of the invention. Referring to fig. 3, the data acquisition and transmission process may include steps S302 to S306.
And step S302, acquiring initial data collected by the target camera from the target camera according to the target camera information.
Step S304, obtaining data to be transmitted meeting the requirements of the target application program based on initial data acquired by the target camera according to input parameters required by the target application program;
step S306, generating a transmission interface corresponding to the target application program, and transmitting the data to be transmitted to the target application program through the transmission interface.
In the present embodiment, the data acquisition and transmission processes from step S302 to step S306 are performed on each data acquisition request, so that the data to be transmitted is correctly transmitted to the corresponding application program.
For step S306, an instance of the transmission interface may be created by the data distribution transmission control module 127, and the data to be transmitted is written into the transmission interface through the instance, after the data writing is completed, the target application program also performs operations such as reading and checking through the transmission interface, so that the process of correctly transmitting the data to be transmitted to the target application program is completed. The transmission interface performs data transmission based on a memory sharing interprocess communication mode, and may include two parts: HEADER, which is used to specify how data is read and written and the correctness and completeness of the data transmission, and PAYLOAD, which is the data content that is actually to be transmitted.
It should be noted that an application on the in-vehicle terminal 120 may control and access any camera accessing the in-vehicle terminal 120 according to an actual application requirement, when a certain application wants to control and access a certain camera according to its requirement, a data acquisition request may be sent to the in-vehicle terminal 120, and the in-vehicle terminal 120 performs a data acquisition and transmission process for the data acquisition request, thereby implementing access of the application sending the data acquisition request to the camera. Where the data acquisition request may carry input parameters and target camera information required by the target application. The target application program is the application program which correspondingly sends the data acquisition request, and the target camera is the camera which the target application program wants to access.
The target camera information may include information such as a target camera category, a target camera usage scenario, target camera output parameters, and the like. The vehicle-mounted terminal 120 can conveniently determine the target camera through the target camera information, and further acquire the initial data collected by the target camera from the target camera. Taking the target camera information as the vehicle-mounted front camera information as an example, the vehicle-mounted front camera can detect the environmental information in front of the vehicle through the vehicle-mounted front camera information, and the method is applied to VR navigation application. The environment information in front of the vehicle may be road information in front of the vehicle, and in practical applications, the road information in front of the vehicle may include picture information and video information of the road in front of the vehicle.
In addition, when receiving data acquisition requests sent by multiple applications, target camera information carried in the multiple data acquisition requests may be completely the same, partially the same, or different, that is, multiple applications sending data acquisition requests in the applications may simultaneously request to access the same target camera or different target cameras. For example, when the VR navigation application and the live broadcast application want to access the vehicle-mounted front-facing camera at the same time, the VR navigation application sends a data acquisition request carrying input parameters required by the VR navigation application and information of the vehicle-mounted front-facing camera to the vehicle-mounted terminal 120, the live broadcast application sends a data acquisition request carrying input parameters required by the live broadcast application and information of the vehicle-mounted front-facing camera to the vehicle-mounted terminal 120, and then the vehicle-mounted terminal 120 acquires initial data acquired by the vehicle-mounted front-facing camera from the vehicle-mounted front-facing camera according to the information of the vehicle-mounted front-facing camera and obtains two pieces of data to be transmitted respectively meeting the VR navigation application and the VR navigation application according to the input parameters required by the VR navigation application and the input parameters required by the live broadcast application and based on the initial data acquired by the vehicle-mounted front-facing camera, the data distribution transmission control module 122 creates instances of transmission interfaces for the VR navigation application and the live broadcast application according to respective data acquisition requests of the VR navigation application and the live broadcast application, then writes two pieces of data to be transmitted into the transmission interfaces of the VR navigation application and the live broadcast application respectively through the instances, the VR navigation application and the live broadcast application determine whether the written data are correct and complete through operations such as reading and checking of the respective transmission interfaces, if the written data are correct and complete, the written data are provided for corresponding APPs for use, the processes of reading and writing the VR navigation application and the live broadcast application can be completed respectively in a circulating manner, and therefore the processes of distributing and transmitting the camera data of the vehicle-mounted front camera to the VR navigation application and the live broadcast application respectively, simultaneously and accurately are achieved.
In some embodiments, in executing step S204, before acquiring the initial data collected by the target camera from the target camera according to the target camera information, the data acquisition and transmission process may further include: acquiring an available camera list, and judging whether a target camera is available according to the available camera list and target camera information; and if the target camera is available, executing the step of acquiring initial data collected by the target camera from the target camera according to the target camera information. The initial data refers to data information collected by the target camera, i.e. camera data. In the embodiment, the step of acquiring the initial data collected by the target camera from the target camera according to the information of the target camera is executed only when the target camera is available, so that the problem of abnormal access of the target application program to the target camera caused by the unavailability of the target camera is effectively avoided.
The available camera list may include camera information of available cameras currently accessed to the in-vehicle terminal 120, and the camera information of each available camera may be known through the available camera list. The camera information may include, for example, information such as a camera type, a camera usage scenario, and a camera output parameter, and whether the target camera is available may be determined by the available camera list and the target camera information carried in the data acquisition request.
Alternatively, the available camera list may be acquired by the application acquiring camera data unit 127.
After the step of acquiring the initial data collected by the target camera from the target camera according to the information of the target camera is executed, the step of obtaining the data to be transmitted meeting the requirements of the target application program based on the initial data collected by the target camera according to the input parameters required by the target application program can be executed. Specifically, the output parameters of the target camera and the input parameters required by the target application program can be obtained, then the output parameters of the target camera and the input parameters of the target application program are compared, and if the output parameters of the target camera are different from the input parameters of the target application program, parameter adjustment can be performed on the initial data to obtain the data to be transmitted, which meets the requirements of the target application program. On the contrary, if the output parameters of the target camera are the same as the input parameters of the target application program, the initial data can be directly used as the data to be transmitted meeting the target application program so as to carry out the subsequent transmission process.
In this embodiment, for each target application program, by comparing the output parameter of the target camera with the input parameter of the target application program, it can be determined whether parameter adjustment needs to be performed on the initial data acquired by the target camera, and when it is determined that adjustment needs to be performed, parameter adjustment is performed on the initial data acquired by the target camera, so as to obtain data to be transmitted that meets the requirements of each target application program. That is to say, for each target application program, when the camera data required by the target application program is different from the initial data acquired by the target camera, the initial data acquired by the target camera can be adjusted to the to-be-transmitted data meeting the requirements of the target application program by using the embodiment, so that one or more application programs can acquire the camera data required by each application program at the same time, the input requirements of different application programs are met, and the use experience of a user is facilitated to be improved.
In other embodiments, after the step of acquiring the initial data collected by the target camera from the target camera according to the target camera information is performed, the acquired initial data may be further stored in a storage space of the in-vehicle terminal 120, so as to facilitate acquisition of the initial data. At this time, the step of acquiring the initial data collected by the target camera from the target camera according to the target camera information in the data acquisition and transmission process may be replaced by: the initial data collected by the target camera is acquired from the storage space of the in-vehicle terminal 120 according to the target camera information. The other steps in the data acquisition and transmission process are identical to the other steps in the aforementioned step S204 except for the step of acquiring the initial data collected by the target camera from the target camera based on the target camera information. By adopting the embodiment, the initial data collected by the camera can be stored in advance, so that a plurality of application programs can be directly obtained from the storage space, the time for obtaining the initial data is saved, and the data distribution efficiency of the camera is effectively improved.
In some further embodiments, the output parameters of the target camera and the input parameters of the target application may each include a data format. In this case, if the output parameters of the target camera are different from the input parameters required by the target application, the parameter adjustment of the initial data may include: if the data format of the target camera is different from the data format required by the target application program, the data format of the initial data is adjusted by using the coder-decoder corresponding to the target camera so as to meet the data format requirement required by the target application program.
It is considered that when the target application accesses the target camera, the target camera may not be turned on, resulting in a failure to access the target camera. In view of this, in some embodiments, when acquiring the initial data acquired by the target camera from the target camera, it may be first detected whether the target camera is turned on, and if the target camera is not turned on, a camera turn-on command is generated and sent to the target camera to turn on the target camera, so as to acquire the initial data acquired by the newly turned on target camera from the newly turned on target camera. On the contrary, if the target camera is opened, the initial data collected by the target camera can be directly obtained from the target camera. By adopting the embodiment, whether the target camera is opened or not, the initial data collected by the target camera can be acquired from the target camera, so that the target application program can be ensured to successfully access the target camera.
When a target camera is newly started, the codecs which are in one-to-one correspondence with the newly started target camera can be generated at the same time, so that the codec function of the codec is subsequently utilized to perform codec processing on initial data acquired from the newly started target camera and acquired by the newly started target camera, and data to be transmitted of a target application program corresponding to the newly started target camera is obtained. In addition, after the codecs are generated, for the opened cameras, the codecs corresponding to the opened cameras one to one are saved.
The codec has an encoding function and a decoding function. Wherein the coding function of the codec can convert the picture format data into video format data. The decoding function of the codec may convert the video format data into picture format data. In the process of using the codec to perform the encoding and decoding processing on the camera data, whether the encoding processing or the decoding processing is performed on the camera data can be determined according to the encoding and decoding requirements in practical application. For example, when an upper application requests to access a camera, if the upper application requires picture format data (such as YUV, JPG), but a camera corresponding to the upper application, that is, a target camera, can only provide video format data (e.g., H264), then the initial data directly output by the target camera cannot be directly provided to the upper application for use, and at this time, the generation of the codec can be controlled, and the decoding function of the codec is used to perform decoding processing on the initial data to convert the video format data into the picture format data, so as to meet the data format required by the upper application. On the contrary, if the upper application requires video format data (e.g. H264), and the target camera can only provide picture format data (e.g. YUV, JPG), the codec can be controlled to convert the picture format data into the video format data by using the coding function of the codec, so as to satisfy the data format required by the upper application.
Illustratively, the target application is a VR navigation application, and needs to access a front-facing camera on the vehicle, i.e., a target camera. If the VR navigation application requires the picture format data and the vehicle-mounted front-facing camera outputs the video format data, the video format data output by the vehicle-mounted front-facing camera may be decoded so that the VR navigation application can acquire the required picture format data. When the initial data collected by the vehicle-mounted front camera is acquired from the vehicle-mounted front camera, the vehicle-mounted front camera may be started or not, whether the vehicle-mounted front camera is started or not can be detected firstly in order to successfully acquire the initial data collected by the vehicle-mounted front camera, if the vehicle-mounted front camera is not started, a camera starting command can be sent to the vehicle-mounted front camera and sent to the vehicle-mounted front camera, the vehicle-mounted front camera is started according to the camera starting command, and a new coder-decoder corresponding to the vehicle-mounted front camera is newly generated after the vehicle-mounted front camera is started, so that the video format data output by the vehicle-mounted front camera is converted into picture format data by using the decoding function of the new coder-decoder. If the fact that the vehicle-mounted camera is turned on is detected, the codec corresponding to the vehicle-mounted front camera is generated in the vehicle-mounted terminal in advance, and then the video format data output by the vehicle-mounted front camera can be converted into the picture format data by utilizing the decoding function of the pre-generated codec corresponding to the vehicle-mounted front camera. On the contrary, if the VR navigation application requires video format data and the vehicle-mounted front camera outputs picture format data, the video format data output by the vehicle-mounted front camera may be encoded in order that the VR navigation application can acquire the required video format data. When the initial data collected by the vehicle-mounted front camera is obtained from the vehicle-mounted front camera, the vehicle-mounted front camera may be started or not, and in order to successfully obtain the initial data collected by the vehicle-mounted front camera, can firstly detect whether the vehicle-mounted front camera is opened or not, if the vehicle-mounted front camera is not opened, then a camera opening command can be sent to the vehicle-mounted front camera and sent to the vehicle-mounted front camera, so as to start the vehicle-mounted front camera according to the camera starting command, and newly generate a new codec corresponding to the vehicle-mounted front camera after the vehicle-mounted front camera is started, the image format data output by the vehicle-mounted front camera is converted into video format data by utilizing the coding function of a new coder-decoder, and then, for the opened vehicle-mounted front camera, storing the codecs which correspond to the vehicle-mounted front camera one by one. If the vehicle-mounted camera is detected to be started, since the codecs which are in one-to-one correspondence with the vehicle-mounted front camera are stored in the starting process of the vehicle-mounted front camera, the picture format data output by the vehicle-mounted front camera can be converted into video format data by utilizing the coding function of the stored codecs which are in one-to-one correspondence with the vehicle-mounted front camera.
In still further embodiments, the output parameters of the target camera and the input parameters of the target application may each further include a resolution. In this case, for each target application, if the resolution of the target camera is different from the resolution required by the target application, when the parameter of the initial data acquired by the target camera and acquired from the target camera is adjusted, a cropper may be generated, and the cropper is used to adjust the resolution of the initial data acquired by the target camera and acquired from the target camera, so that the target application obtains the camera data satisfying the required resolution, and thus the requirement of the application can be better satisfied.
Because the resolution of the initial data acquired by the target camera is not changed after the initial data is coded and decoded by the codec, the resolution of the initial data after the coding and decoding are performed by the codec can be adjusted by the cropper after the cropper is generated.
In addition, after the data to be transmitted is transmitted to the target application program, the data acquiring and transmitting process may further include: detecting whether a target camera is being used by other application programs; if yes, the transmission interface can be released; if not, the codec and the transmission interface can be released. Therefore, resources can be effectively saved and the data distribution efficiency of the camera can be improved by reasonably limiting the release time of the transmission interface and the codec.
In an embodiment of the present invention, a VR navigation application wants to obtain camera data of a vehicle-mounted front-facing camera, if it is known that the VR navigation application requires picture format data with a resolution of 480P, and it is known that video format data with a resolution of 1080P is directly output by the vehicle-mounted front-facing camera, at this time, if it is detected that the vehicle-mounted front-facing camera is not turned on, a camera turn-on command may be sent to the vehicle-mounted front-facing camera and sent to the vehicle-mounted front-facing camera to turn on the vehicle-mounted front-facing camera, and after the vehicle-mounted front-facing camera is turned on, a new codec corresponding to the vehicle-mounted front-facing camera may be newly generated, the video format data output by the vehicle-mounted front-facing camera may be converted into picture format data by using a decoding function of the new codec, and a cropper and a transmission interface may be generated, and the cropper may be used to crop the picture format data with a resolution of 1080P processed by the codec into picture format data with a resolution of 480P And then transmitting the cut picture format data with the resolution of 480P to VR navigation application through the transmission interface, detecting whether the vehicle-mounted front-facing camera is used by other application programs after the transmission is finished, if detecting that the vehicle-mounted front-facing camera is used by other application programs, if so, reserving a coder-decoder corresponding to the vehicle-mounted front-facing camera, only releasing the transmission interface, and if the vehicle-mounted front-facing camera is not used by other application programs, generating a camera closing instruction and transmitting the camera closing instruction to the vehicle-mounted front-facing camera to close the vehicle-mounted front-facing camera, and completely releasing the coder-decoder and the transmission interface.
Fig. 4 is a schematic detailed flowchart of a camera data distribution method according to an embodiment of the present invention. Referring to fig. 4, the camera data distribution method may include at least the following steps S402 to S434.
Step S402, receiving a data acquisition request sent by one or more of the plurality of application programs. In this step, each data acquisition request carries input parameters and target camera information required by a target application program, where each target application program is the application program that correspondingly sends each data acquisition request.
In step S404, a list of available cameras is acquired.
And step S406, judging whether each target camera is available according to the available camera list and the target camera information carried in each data acquisition request. If yes, go to step S408; if not, the flow is ended.
Step S408, detecting whether each target camera is opened; if not, executing step S410; if yes, go to step S412.
And step S410, generating a camera opening command, sending the camera opening command to an unopened target camera to open the target camera, and generating and storing a codec corresponding to the target camera.
Step S412, acquiring initial data collected by the target cameras from the target cameras, respectively.
Step S414, acquiring the data format and resolution of each target camera and the data format and resolution required by the corresponding target application program.
Step S416, for each target camera, determine whether the data format of the target camera is the same as that of the corresponding target application program. If not, go to step S418; if yes, go to step S420.
Step S418, adjusting the data format of the initial data collected by the target camera by using the codec corresponding to the target camera.
Step S420, determining whether the target camera and the corresponding target application have the same resolution. If not, go to step S422; if yes, go to step S424.
Step S422, a clipper is generated, and the original data or the original data with the adjusted data format is subjected to resolution adjustment by using the clipper.
Step S424, the obtained initial data, the initial data after the data format adjustment, the initial data after the resolution adjustment, the initial data after the data format adjustment, and the initial data after the resolution adjustment are respectively used as the data to be transmitted that meet the requirements of each target application program.
Step S426, generating a transmission interface, and transmitting each to-be-transmitted data to the corresponding target application program through the transmission interface.
In step S428, it is determined whether there is any data to be transmitted that has been transmitted. If yes, go to step S428; if not, the transmission is continued.
Step S430, detecting whether the target camera corresponding to the data to be transmitted after the transmission is finished is being used by other application programs. If yes, go to step S432, otherwise go to step S434.
And step S432, releasing the transmission interface corresponding to the target camera.
And step S434, generating a camera closing instruction and sending the camera closing instruction to the target camera to close the target camera, and releasing the codec and the transmission interface corresponding to the target camera.
In the camera data distribution method of the embodiment, when one or more application programs in the plurality of application programs need to access at least one camera, as long as the available camera is available currently, regardless of whether the available camera is being used by other application programs, the target application program can take the camera data of the available camera, so that the purpose of simultaneously distributing the camera data of at least one camera to one or more application programs is achieved, the design limitation of the existing application programs on exclusive access of the camera is broken, and the driving and riding experience is greatly enriched. Meanwhile, the embodiment of the invention can adjust the parameters of the initial data collected by the target camera, so that one or more application programs can simultaneously obtain the data of the cameras required by the application programs, and the requirements of different application programs are met. In addition, by reasonably limiting the release time of the transmission interface 126 and the codec 124, resources can be effectively saved, and the data distribution efficiency of the camera is improved.
Based on the same inventive concept, in one embodiment, a computer storage medium is also provided. The computer storage medium stores computer program code which, when run on a computing device, causes the computing device to perform the camera data distribution method of any one or a combination of the preceding embodiments.
FIG. 5 is a schematic block diagram of an electronic device according to one embodiment of the invention. Referring to fig. 5, the present invention also provides an electronic device 500.
Further, the electronic device 500 may be a vehicle-mounted electronic device, or an edge server, or a cloud server.
Further, the Vehicle-mounted electronic device may specifically be a driving brain, a Vehicle machine, a DHU (integrated machine of entertainment host and meter), an IHU (information entertainment Unit), an IVI (In-Vehicle information entertainment system), or any Vehicle-mounted information interaction terminal.
The electronic device 500 may include a processor 510 and a memory 520. The memory 520 has computer program code stored therein. The computer program code, when executed by the processor 510, causes the electronic device 500 to perform the camera data distribution method of any one or a combination of the embodiments described above.
The above embodiments can be combined arbitrarily, and according to any one of the above preferred embodiments or a combination of multiple preferred embodiments, the embodiments of the present invention can achieve the following beneficial effects:
by adopting the embodiment of the invention, as long as the available camera exists currently, the target application program can take the camera data of the available camera regardless of whether the available camera is used by other application programs, the aim of simultaneously distributing the camera data of at least one camera to one or more application programs is realized, the design limit of the existing application program on exclusive access of the camera is broken, and the driving and riding experience is greatly enriched. Meanwhile, the embodiment of the invention can adjust the parameters of the initial data collected by the target camera, so that one or more application programs can simultaneously obtain the data of the cameras required by the application programs, and the requirements of different application programs are met. In addition, resources can be effectively saved and the data distribution efficiency of the camera can be improved by reasonably limiting the release time of the transmission interface and the codec.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A camera data distribution method is applied to a vehicle-mounted terminal, the vehicle-mounted terminal is connected with at least one camera, and an application program is installed on the vehicle-mounted terminal, and the method comprises the following steps:
receiving one or more data acquisition requests sent by one or more of the application programs, wherein each data acquisition request carries input parameters required by a target application program and target camera information, and each target application program is the application program which correspondingly sends each data acquisition request;
for each data acquisition request, performing a data acquisition and transmission process, the data acquisition and transmission process comprising:
acquiring initial data acquired by a target camera from the target camera according to the target camera information;
obtaining data to be transmitted which meets the requirements of a target application program based on initial data acquired by the target camera according to the input parameters;
generating a transmission interface corresponding to the target application program according to the data acquisition request, and transmitting the data to be transmitted to the target application program through the transmission interface;
when receiving data acquisition requests sent by multiple applications, the target camera information carried in the data acquisition requests is completely the same, partially the same or different, and the data acquisition and transmission processes are executed simultaneously aiming at the data acquisition requests.
2. The camera data distribution method of claim 1, wherein, prior to acquiring the initial data collected by the target camera from the target camera according to the target camera information, the data acquisition and transmission process further comprises:
acquiring an available camera list, and judging whether the target camera is available according to the available camera list and the target camera information;
and if the target camera is available, executing the step of acquiring initial data collected by the target camera from the target camera according to the target camera information.
3. The camera data distribution method according to claim 1, wherein obtaining, according to the input parameters, data to be transmitted that meets a requirement of a target application program based on initial data collected by the target camera includes:
acquiring output parameters of the target camera and input parameters required by the target application program;
comparing the output parameters of the target camera with the input parameters required by the target application program;
and if the output parameters of the target camera are different from the input parameters required by the target application program, performing parameter adjustment on the initial data to obtain the data to be transmitted which meets the requirements of the target application program.
4. The camera data distribution method according to claim 3,
obtaining initial data from a target camera, the initial data being collected by the target camera, including:
detecting whether the target camera is started;
if the target camera is not started, generating a camera starting command and sending the camera starting command to the target camera to start the target camera, generating a coder-decoder corresponding to the target camera, and acquiring the initial data from the target camera;
and if the target camera is started, directly acquiring the initial data from the target camera.
5. The camera data distribution method according to claim 4,
the output parameters and the input parameters both comprise data formats;
if the output parameters of the target camera are different from the input parameters required by the target application program, performing parameter adjustment on the initial data, including:
and if the data format of the target camera is different from the data format required by the target application program, adjusting the data format of the initial data by using the coder-decoder corresponding to the target camera.
6. The camera data distribution method according to claim 4,
the output parameter and the input parameter each comprise a resolution;
if the output parameters of the target camera are different from the input parameters required by the target application program, performing parameter adjustment on the initial data, including:
and if the resolution of the target camera is different from the resolution required by the target application program, generating a cutter, and adjusting the resolution of the initial data by using the cutter.
7. The camera data distribution method according to claim 4,
after transmitting the data to be transmitted to the target application, the data obtaining and transmitting process further includes:
detecting whether the target camera is being used by other application programs;
if yes, releasing the transmission interface;
and if not, releasing the coder-decoder and the transmission interface.
8. A camera data distribution system, comprising:
the camera is used for acquiring camera data; and
an in-vehicle terminal including a data distribution transmission control module for executing the camera data distribution method according to any one of claims 1 to 7.
9. A computer storage medium storing computer program code which, when run on a computing device, causes the computing device to perform the camera data distribution method of any of claims 1-7.
10. An electronic device, comprising:
a processor;
a memory storing computer program code which, when executed by the processor, causes the electronic device to perform the camera data distribution method of any of claims 1-7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114205529A (en) * | 2021-12-20 | 2022-03-18 | 北京鸿合爱学教育科技有限公司 | Single-camera calling method and device, terminal and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005006756A (en) * | 2003-06-17 | 2005-01-13 | Sanyo Product Co Ltd | Game machine |
| JPWO2005006756A1 (en) * | 2003-07-11 | 2006-08-31 | 株式会社日立製作所 | Image processing camera system and image processing camera control method |
| US20100231754A1 (en) * | 2009-03-11 | 2010-09-16 | Wang Shaolan | Virtual camera for sharing a physical camera |
| CN110386064A (en) * | 2018-04-20 | 2019-10-29 | 比亚迪股份有限公司 | Control system, method, mobile unit and the automobile of vehicle-mounted camera |
| CN111086455A (en) * | 2020-03-19 | 2020-05-01 | 吉利汽车研究院（宁波）有限公司 | Data processing method and device, electronic equipment and storage medium |
-
2021
- 2021-08-03 CN CN202110886244.4A patent/CN113660460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005006756A (en) * | 2003-06-17 | 2005-01-13 | Sanyo Product Co Ltd | Game machine |
| JPWO2005006756A1 (en) * | 2003-07-11 | 2006-08-31 | 株式会社日立製作所 | Image processing camera system and image processing camera control method |
| US20100231754A1 (en) * | 2009-03-11 | 2010-09-16 | Wang Shaolan | Virtual camera for sharing a physical camera |
| CN110386064A (en) * | 2018-04-20 | 2019-10-29 | 比亚迪股份有限公司 | Control system, method, mobile unit and the automobile of vehicle-mounted camera |
| CN111086455A (en) * | 2020-03-19 | 2020-05-01 | 吉利汽车研究院（宁波）有限公司 | Data processing method and device, electronic equipment and storage medium |
Non-Patent Citations (1)
| Title |
|---|
| 李茂堂等: "《多源水利信息快速获取与处理》", 武汉：华中科技大学出版社, pages: 177 - 179 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114205529A (en) * | 2021-12-20 | 2022-03-18 | 北京鸿合爱学教育科技有限公司 | Single-camera calling method and device, terminal and readable storage medium |
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