CN113542848A - Vehicle-mounted image window self-defining adjusting method and vehicle-mounted system - Google Patents
Vehicle-mounted image window self-defining adjusting method and vehicle-mounted 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]
- H04N21/40—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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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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
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4858—End-user interface for client configuration for modifying screen layout parameters, e.g. fonts, size of the windows
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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
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Abstract
The application relates to a vehicle-mounted image window self-defining adjusting method and a vehicle-mounted system, which are applied to the vehicle-mounted system provided with a collecting camera and a display screen, wherein the method comprises the following steps: creating a first window, and defining a video signal output by the first window; and receiving and identifying a trigger event, and processing the first window according to the trigger event. The beneficial effect of this application is: this application can carry out self-defined regulation to on-vehicle image output window, has solved car driver under special road conditions, can't use supplementary video to look over the road conditions video combination of automobile body different directions according to self needs, has improved present existing panorama driver assistance function, and user's user demand is pressed close to more in a flexible way.
Description
Technical Field
The application relates to the technical field of automotive electronics, in particular to a vehicle-mounted image window self-defining adjusting method and a vehicle-mounted system.
Background
Modern society science and technology is constantly improved, and the development of car also improves thereupon, and the function of the smart machine that drives is assisted in accompanying the car is also more and more, more and more closes to humanized design and demand. Panoramic influences are now a common driving assistance function. The existing panoramic view function is to display videos of a vehicle body in a certain direction in real time according to a set view, and provides a function of assisting a driver to view road conditions, but the combination of the videos of the vehicle body cannot be displayed by a vehicle user according to own habits and needs in a self-defined mode, for example, when the driver backs a vehicle to pass through a narrow lane and has a road edge, the driver observes the situations that the driver is not clear enough or needs to observe the back and the side at the same time on a rearview mirror, and the auxiliary fixed view cannot meet the requirements at this time.
Disclosure of Invention
The application provides a vehicle-mounted image window custom adjusting method and a vehicle-mounted system for overcoming the problem that a vehicle user cannot display a combination of vehicle body videos according to own habits and needs in the prior art.
A vehicle-mounted image window self-defining adjusting method is applied to a vehicle-mounted system provided with a collecting camera and a display screen, and comprises the following steps:
creating a first window, and defining a video signal output by the first window;
and receiving and identifying a trigger event, and processing the first window according to the trigger event.
Optionally, the creating the first window is performed for a screen graphics service based on a vehicle-mounted system, and includes:
a first window is created by a window component of the screen graphics service.
Optionally, the creating a first window by a window component of the screen graphics service includes:
starting the screen graphic service and creating a service context for establishing communication with the screen graphic service;
creating a first window through the service context, and setting a retrieval ID of the first window;
initializing a window attribute of the first window;
creating a memory space buffer for the first window through a screen graphics service;
wherein the window attribute at least comprises one or more of pixel format, window size and access authority.
Optionally, the video signal defining the first window output includes:
initializing and setting the buffer area attribute of the memory space buffer area;
creating a shared memory and binding a shared address of a video signal to be output by the first window;
allocating the shared address to a memory space buffer;
and associating the memory space buffer with the first window, and informing the first window to start displaying.
The buffer de-attribute at least comprises one or more of memory allocation, storage size setting, pixel format and step size.
Optionally, the video signal is collected by a collecting camera, and the video signal at least includes one of a panoramic video, a front video, a rear video, a left video, and a right video.
Optionally, before the creating the first window by the window component of the screen graphics service, the method further includes:
a parent window is created by a window component of the screen graphics service, and a first window is created within the parent window by the window component.
Optionally, the receiving and identifying a trigger event includes:
receiving a triggering event of key input or touch input, and comparing the triggering event with an input event library of the vehicle-mounted system;
if the trigger event has a matching event in the input event, outputting the matching event; otherwise, no processing is performed.
Optionally, if the trigger event is a zoom window event, performing zoom processing on the first window includes:
acquiring an input coordinate point of the trigger event, judging whether the input coordinate point is in a display screen area and confirming whether a first window is controlled;
if yes, further judging whether the two connected input coordinate points are stretched or shrunk;
if yes, calculating the offset of the two connected input coordinate points, updating the width attribute and the height attribute of the first window by the screen graphic service according to the offset, and zooming the output window.
Optionally, if the first window is within the parent window, before performing scaling processing on the first window, the method further includes:
judging whether each boundary of the first window is not attached to the parent window or is positioned on the second window boundary of the parent window after the first window is subjected to offset according to the offset;
if so, adjusting the offset according to the distance between the first window and the boundary of the second window or the parent window, and updating the width attribute and the height attribute of the first window through a screen graphic service.
In addition, the application also provides a vehicle-mounted system, wherein the vehicle-mounted system runs with a QNX operating system, and the operating system of the screen graphic service runs with a program comprising the vehicle-mounted image window self-defining adjusting method.
Compared with the prior art, the beneficial effects of this application are: this application can carry out self-defined regulation to on-vehicle image output window, has solved car driver under special road conditions, can't use supplementary video to look over the road conditions video combination of automobile body different directions according to self needs, has improved present existing panorama driver assistance function, and user's user demand is pressed close to more in a flexible way.
Drawings
Fig. 1 is a flowchart of an embodiment of the present application.
FIG. 2 is a schematic diagram illustrating self-defined adjustment of vehicle-mounted images according to the present application.
Detailed Description
The present application will be further described with reference to the following detailed description.
The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, if any, are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the present application and for simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.
In the embodiment shown in fig. 1-2, the application provides a vehicle-mounted image window custom adjusting method, which is applied to a vehicle-mounted system provided with a collecting camera and a display screen, and the method comprises the following steps:
100, creating a first window, and defining a video signal output by the first window; in step 100, creating a first window for an on-screen graphics service based on an on-board system includes: a first window is created by a window component of a screen graphics service. A video signal defining a first window output, comprising: initializing and setting buffer area attributes of a memory space buffer area; creating a shared memory and binding a shared address of a video signal to be output by a first window; allocating the shared address to a memory space buffer; and associating the memory space buffer with the first window, and informing the first window to start displaying. The buffer de-attribute at least comprises one or more of memory allocation, storage size setting, pixel format and step size.
200, receiving and identifying a trigger event, and processing the first window according to the trigger event. In step 200, a triggering event is received and identified, including: receiving a triggering event of key input or touch input, and comparing the triggering event with an input event library of the vehicle-mounted system; if the trigger event has a matching event in the input event, outputting the matching event; otherwise, no processing is performed. If the trigger event is a zoom window event, performing zoom processing on the first window, including: acquiring an input coordinate point of a trigger event, and judging whether the input coordinate point is in a first window or not; judging whether the two connected input coordinate points are stretched or shrunk; if yes, calculating the offset of the two connected input coordinate points, updating the width attribute and the height attribute of the first window by the screen graphic service according to the offset, and zooming the output window.
In this embodiment, the method of the present application can be implemented in a vehicle-mounted system with a QNX operating system, and can perform custom adjustment on a vehicle-mounted image output window, so that it is solved that a driver of a vehicle cannot use an auxiliary video to view road condition video combinations of different directions of a vehicle body according to self needs under special road conditions, and the existing panoramic auxiliary driving function is improved, and the method is more flexible and closer to user use requirements.
In some embodiments, creating the first window is created for an on-screen graphics service based on an in-vehicle system, comprising: a first window is created by a window component of a screen graphics service.
In one implementation of the above embodiment, creating the first window by a window component of a screen graphics service includes:
starting a screen graphic service and creating a service context for establishing communication with the screen graphic service; in the embodiment, the application can start the screen graphic service in the vehicle. Before establishing a service context for establishing communication with the screen graphic service, the method can firstly judge whether the screen graphic service has the service context; if so, creating a first window directly through the screen graphic service context; if not, establishing a service context and communicating the service context with the screen graphic service.
Creating a first window through the service context, and setting a retrieval ID of the first window; in this embodiment, the application creates a first window according to a window component through a service context, and sets a search ID of the first window.
Initializing a window attribute of a first window; in this embodiment, after the first window is created, the first window is initialized with window attributes, that is, the pixel format, the window size, and the access permission lamp parameters of the window attribute are set to initialization.
Creating a memory space buffer area for a first window through a screen graphic service; in this embodiment, after the first window is initialized, a memory buffer for the first window is created by the screen graphics service for storing the shared address of the video signal.
In one embodiment of the foregoing implementation, before creating the first window by the window component of the screen graphics service, the method further includes: a parent window is created by a window component of a screen graphics service, and a first window is created within the parent window by the window component. In this embodiment, the present application may define the size range of the display screen by creating a parent window. Wherein, the parent window can be created through a window component of the screen graphic service, and after the parent window is created, a child window is created under the parent window.
In some embodiments, defining a video signal for a first window output includes: initializing and setting buffer area attributes of a memory space buffer area; creating a shared memory and binding a shared address of a video signal to be output by a first window; allocating the shared address to a memory space buffer; and associating the memory space buffer with the first window, and informing the first window to start displaying. The buffer de-attribute at least comprises one or more of memory allocation, storage size setting, pixel format and step size. The video signals are collected through a collecting camera, and the video signals at least comprise one of a panoramic video, a front video, a rear video, a left video and a right video. In this embodiment, the display content of the first window may be selected from a stitched panoramic video or a video acquired by a front/rear/left/right camera of a vehicle body, a memory address for acquiring data of these video images needs to be defined, and after the window is dynamically created, a storage address of the selected video image may be input into a memory space buffer of the window component, so that the image content stored in the memory space buffer is output and displayed in the window.
In some embodiments, receiving and identifying a triggering event includes: receiving a triggering event of key input or touch input, and comparing the triggering event with an input event library of the vehicle-mounted system; if the trigger event has a matching event in the input event, outputting the matching event; otherwise, no processing is performed. The triggering event is acquired by receiving physical key or touch input. In this embodiment, the acquisition is performed by touch input. After touch input is acquired; comparing the trigger event with the input event; and if the coordinate of the touch point changes, finding a comparison file in the input event library, and outputting a matching event to the program of the application. Otherwise, no processing is performed.
In some embodiments, if the trigger event is a zoom window event, performing zoom processing on the first window includes: acquiring an input coordinate point of a trigger event, and judging whether the input coordinate point is in a first window or not; judging whether the two connected input coordinate points are stretched or shrunk; if yes, calculating the offset of the two connected input coordinate points, updating the width attribute and the height attribute of the first window by the screen graphic service according to the offset, and zooming the output window. In this embodiment, after the application identifies the trigger event through the input event library, the application acquires the input coordinate point of the trigger event, determines whether the input coordinate point is in the screen area,
if so, judging whether the first window is controlled or not, and if not, not processing.
If the first window is confirmed to be controlled, judging whether the input coordinate points connected in multiple sections have stretching or shrinking gestures, and otherwise, not processing;
if the input coordinate point has stretching or shrinking gestures, calculating the offset of x and y coordinates of the input coordinate points at two ends, and updating the width and height attribute of the first window through screen graphic service; the first window is enlarged or reduced. Otherwise, no processing is performed.
In some embodiments, referring to fig. 2, if the first window is within the parent window, before performing the scaling process on the first window, the method further includes: judging whether each boundary of the first window is not attached to the parent window or is positioned on the second window boundary of the parent window after the first window is subjected to offset according to the offset; if so, adjusting the offset according to the distance between the first window and the boundary of the second window or the parent window, and updating the width attribute and the height attribute of the first window through a screen graphic service.
In an implementation manner of the foregoing embodiment, it is determined whether a second window located in a parent window exists or whether the second window is located outside a parent window boundary after the first window is shifted according to the offset; if so, adjusting the offset according to the distance between the first window and the boundary of the second window or the parent window, and updating the width attribute and the height attribute of the first window through the screen graphic service. In this embodiment, if the first window is in the parent window, it is necessary to determine whether the enlargement or reduction of the first window is in the parent window and covers the adjacent second window. Therefore, it is necessary to determine whether a second window located in the parent window exists or whether the second window is located outside the parent window after the first window is shifted according to the offset; if so, adjusting the offset according to the distance between the first window and the second window or the parent window boundary. And adjusting the first window according to the final offset, so that the boundary of the first window is attached to the parent window or the adjacent second window.
In an implementation manner of the foregoing embodiment, it is determined whether a boundary of the first window has a distance from a parent window boundary or a second window boundary after the first window is shifted according to the offset, if so, the offset is adjusted according to the distance between the first window and the second window or the parent window boundary, and the width attribute and the height attribute of the first window are updated through the screen graphics service. And adjusting the first window according to the final offset, so that the boundary of the first window is attached to the parent window or the adjacent second window.
In some embodiments, the present application further provides an in-vehicle system, where the in-vehicle system runs with a QNX operating system, and an operating system of a screen graphics service runs with a program including the in-vehicle image window customized adjustment method described above. In this embodiment, the method and the device realize that a user creates one or more display windows of a screen in a user-defined manner, selects a video in a certain vehicle body direction displayed in the window, and achieves the function of zooming each display window by recognizing the gesture of the user touching the screen. Specifically, at least one display window is created through a screen graphic service screen provided by a QNX operating system; and performs display and size control on the display window. The user can custom create the display pane and display the needed car body video. A screen graphic service screen in the QNX operating system integrates a plurality of graphic related basic component services including a window component window for output display, a memory space Buffer area Buffer for output display and the like, and the function of customizing window display and layout on a vehicle-mounted screen is realized based on the basic component services. And the gesture coordinate is identified, the event is triggered and the offset of the coordinate point is judged by using an input event library service mtouch in the qnx operating system, and the window size is dynamically set by using the offset so as to realize the dynamic zooming function.
Creating a video display window includes: based on a window component in screen service and including a Buffer for storing display content, a parent window is created to limit the size range of a screen, then a child window, namely a first window, is created in the parent window in a self-defined triggering mode, the display content of the child window can be selected to splice panoramic videos or videos in front of/behind/left/right of a vehicle body, the memory address for acquiring the video image data needs to be defined, the storage address of the selected video image can be input into the Buffer of the window component after the window is dynamically created, and then the image content stored in the Buffer is output and displayed in the window.
The scalable adaptive window includes: memorizing the area occupied by each window on the screen, identifying a video sub-window to be controlled by identifying a first screen coordinate touched by a finger of a user, identifying the gesture of the user and the movement change of the coordinate thereof by using mtouch, setting the size of the creating window according to the offset of a coordinate point, and realizing zooming of the video window according to the gesture. And meanwhile, judging the video window zoomed by the user, if other display windows exist within the limited distance, carrying out intelligent zooming on the video window, and automatically zooming the width and the height of the window to the position which can be perfectly spliced with the adjacent window.
It should be understood that the above examples of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims (10)
1. A vehicle-mounted image window self-defining adjusting method is characterized by being applied to a vehicle-mounted system provided with a collecting camera and a display screen, and the method comprises the following steps:
creating a first window, and defining a video signal output by the first window;
and receiving and identifying a trigger event, and processing the first window according to the trigger event.
2. The method for self-defining adjustment of the vehicle-mounted image window according to claim 1, wherein the creating of the first window is performed based on a screen graphic service of a vehicle-mounted system, and comprises:
a first window is created by a window component of the screen graphics service.
3. The method as claimed in claim 2, wherein the creating a first window by the window component of the screen graphics service comprises:
starting the screen graphic service and creating a service context for establishing communication with the screen graphic service;
creating a first window through the service context, and setting a retrieval ID of the first window;
initializing a window attribute of the first window;
creating a memory space buffer for the first window through a screen graphics service;
wherein the window attribute at least comprises one or more of pixel format, window size and access authority.
4. The method as claimed in claim 3, wherein the defining the video signal outputted from the first window comprises:
initializing and setting the buffer area attribute of the memory space buffer area;
creating a shared memory and binding a shared address of a video signal to be output by the first window;
allocating the shared address to a memory space buffer;
and associating the memory space buffer with the first window, and informing the first window to start displaying.
The buffer de-attribute at least comprises one or more of memory allocation, storage size setting, pixel format and step size.
5. The vehicle-mounted image window self-defining adjusting method according to claim 4, wherein the video signal is collected by a collecting camera, and the video signal at least comprises one of a panoramic video, a front video, a rear video, a left video and a right video.
6. The method as claimed in claim 2, further comprising, before the creating the first window by the window component of the screen graphic service, the steps of:
a parent window is created by a window component of the screen graphics service, and a first window is created within the parent window by the window component.
7. The method for self-defining adjustment of vehicular image windows according to claim 1, wherein the receiving and identifying a triggering event comprises:
receiving a triggering event of key input or touch input, and comparing the triggering event with an input event library of the vehicle-mounted system;
if the trigger event has a matching event in the input event, outputting the matching event; otherwise, no processing is performed.
8. The method for self-defining adjustment of the vehicle-mounted image window according to claim 7, wherein if the trigger event is a zoom window event, performing zoom processing on the first window includes:
acquiring an input coordinate point of the trigger event, judging whether the input coordinate point is in a display screen area and confirming whether a first window is controlled;
if yes, further judging whether the two connected input coordinate points are stretched or shrunk;
if yes, calculating the offset of the two connected input coordinate points, updating the width attribute and the height attribute of the first window by the screen graphic service according to the offset, and zooming the output window.
9. The method of claim 8, wherein if the first window is in a parent window, before scaling the first window, the method further comprises:
judging whether each boundary of the first window is not attached to the parent window or is positioned on the second window boundary of the parent window after the first window is subjected to offset according to the offset;
if so, adjusting the offset according to the distance between the first window and the boundary of the second window or the parent window, and updating the width attribute and the height attribute of the first window through a screen graphic service.
10. An in-vehicle system, wherein the in-vehicle system runs with a QNX operating system, and the operating system of the screen graphics service runs with a program comprising the in-vehicle image window customized adjustment method according to any one of claims 1 to 9.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050062845A1 (en) * | 2003-09-12 | 2005-03-24 | Mills Lawrence R. | Video user interface system and method |
| CN103986961A (en) * | 2014-05-26 | 2014-08-13 | 惠州华阳通用电子有限公司 | Method and device for achieving picture in picture based on QNX vehicle-mounted system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050062845A1 (en) * | 2003-09-12 | 2005-03-24 | Mills Lawrence R. | Video user interface system and method |
| CN103986961A (en) * | 2014-05-26 | 2014-08-13 | 惠州华阳通用电子有限公司 | Method and device for achieving picture in picture based on QNX vehicle-mounted system |
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