CN112822547A - Interface universe adaptive screen projection playing control method - Google Patents
Interface universe adaptive screen projection playing control method Download PDFInfo
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- CN112822547A CN112822547A CN202011615546.XA CN202011615546A CN112822547A CN 112822547 A CN112822547 A CN 112822547A CN 202011615546 A CN202011615546 A CN 202011615546A CN 112822547 A CN112822547 A CN 112822547A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 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, rendering scenes according to MPEG-4 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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- 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
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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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
- H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
-
- 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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 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, rendering scenes according to MPEG-4 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
- H04N21/440272—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 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 for performing aspect ratio conversion
Abstract
The invention discloses a screen projection playing control method for interface universe adaptation, which comprises the following steps: s1, configuring the self-defined resolution of the main interface and the playing picture in the screen projection when the screen projection is not performed; s2, when the main interface is restored to display, reading the self-defined resolution and the current resolution of the system, configuring the width and the height of all controls in the main interface, and waiting for screen projection; s3, according to the screen projection trigger signal, before the player draws a picture, calculating the ratio of the self-defined resolution to the current resolution of the system, and sending the ratio to the player; and S4, the player scales the initial picture to be drawn according to the received scale value and presents the scaled picture. The invention carries out global design of special resolution, is convenient for the operation experience of users, and meets the configuration requirement of the special resolution of the users and the zooming requirement of intelligent horizontal and vertical screens.
Description
Technical Field
The invention relates to the field of projection equipment, in particular to a screen projection playing control method with interface universe adaptation.
Background
In the present digital age, more and more information needs to be projected onto large and small screens. There is much information to meet the various special needs, and there are also screens that must display only a portion of the system interface to distinguish the console from the actual presentation. When a user uses screen projection software, a display picture cannot meet the requirements of a player with a part of special resolution, so that in some displays with special resolution, the actual picture does not cover the whole system interface, but only displays a partial area of the whole screen.
The current solution to deal with a special resolution screen or to a normal screen but only displaying a small area in the market is to develop a specific solution by fixing the relative position of the player or interface in the interface file during the development of the project, which requires the following settings:
1) calculating and fixing his position in the interface file according to the customer's requirements;
2) designing the size of the screen projection player to be the size required by a client;
3) the player is set to a fixed size.
However, the width and the height of the player cannot be defined by the setting, and the player cannot be perfectly matched with a specific display screen, so that the screen projection process is increased, and time and labor are wasted.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides a screen-casting playing control method with interface universe adaptation, which can customize the proportion of playing pictures during screen casting so as to achieve the purpose of perfectly adapting to various demonstration schemes on any equipment, and the technical scheme is as follows:
the invention provides a screen projection playing control method with interface universe adaptation, which comprises the following steps:
s1, configuring the self-defined resolution of the main interface and the playing picture in the screen projection when the screen projection is not performed;
s2, when the main interface is restored to display, reading the self-defined resolution and the current resolution of the system, configuring the width and the height of all controls in the main interface, and waiting for screen projection;
s3, according to the screen projection trigger signal, before the player draws a picture, calculating the ratio of the self-defined resolution to the current resolution of the system, and sending the ratio to the player;
and S4, the player scales the initial picture to be drawn according to the received scale value and presents the scaled picture.
Further, before scaling the initial picture to be rendered in step S4, the method further includes receiving an image signal according to the following steps:
s41, the player receives the time domain signal stream and creates a windowed data set according to the time domain signal stream;
s42, converting the windowed data set into a frequency domain data set by the processor, and storing the obtained data into frequency domain data with basic transformation resolution;
s43, performing complex spectral phase evolution on the frequency domain data, estimating component frequencies of the frequency domain data at a resolution greater than the base transform resolution;
s44, using the component frequencies estimated in the complex spectral phase evolution, sampling a set of pre-stored frequency domain windows to select one frequency domain window therefrom to match at least one of amplitude, phase, amplitude modulation, and frequency modulation of the fundamental signal oscillator;
s45, using a tracking algorithm to identify a tracker consisting of one or more oscillator peaks emitted by the oscillation source of the base signal oscillator matched in step S44;
s46, grouping tracks originating from a single source and providing a signal to the player.
Further, step S44 further includes: parameters required for at least one of FM creation and AM creation are stored in the frequency domain, wherein the parameters for FM creation include amplitude, phase, reference frequency, and modulation rate, and the parameters for AM creation include amplitude, phase, frequency, and amplitude envelope information.
Further, step S44 further includes: recreating a spectrum of at least one of the FM and AM modulated oscillator peaks, the spectrum including any transient effects that the oscillator is capable of turning on or off at some point within the data sampling window.
Further, step S43 further includes: a unified domain representation of data from complex spectral phase evolution is provided to enable the use of direction estimates in the unified domain to fit the constituent components of the signal.
Further, the oscillator peak value in step S45 further includes oscillator peak value signal extension information to represent the signal element to a desired precision.
Further, a continuous wrapping effect and/or a plurality of wrapping effects are included in the spectrum of the oscillator peak signal spread information.
The technical scheme provided by the invention has the following beneficial effects:
a. the ratio of the playing pictures during screen projection is customized, so that various demonstration schemes can be perfectly adapted to any equipment;
b. the display screen can be applied to a series of special display screens such as school playground large-screen mobile screens, hospital special display screens, railway station public cloth screens and the like, and can also be applied to display screens with various non-traditional display proportions;
c. the operation experience of a user is facilitated, the special resolution configuration requirement of the user is met, and the intelligent horizontal and vertical screen zooming requirement is met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a screen projection playing control method for interface gamut adaptation according to an embodiment of the present invention;
fig. 2 is a flowchart of a screen projection control method for a time-domain signal stream according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
The screen projection technology aims at a specific area with specific resolution or standard resolution at present, is inconvenient and inflexible to develop in a plurality of scenes, and the invention can be used for remarkably solving the problem that the screen size can be compatible under different environments and the invention is implemented in various screen projection schemes. In an embodiment of the present invention, an interface global adaptive screen projection playing control method is provided, and referring to fig. 1, the interface global adaptive screen projection playing control method includes the following steps:
s1, configuring the self-defined resolution of the main interface and the playing picture in the screen projection when the screen projection is not performed;
s2, when the main interface is restored to display, reading the self-defined resolution and the current resolution of the system, configuring the width and the height of all controls in the main interface, and waiting for screen projection;
s3, according to the screen projection trigger signal, before the player draws a picture, calculating the ratio of the self-defined resolution to the current resolution of the system, and sending the ratio to the player;
and S4, the player scales the initial picture to be drawn according to the received scale value and presents the scaled picture.
According to the flowchart shown in fig. 1, the scheme of the embodiment of the present invention requires that the customized resolution configuration is performed on the main interface when no screen is projected and the playing picture in the screen projection. Firstly, after setting a self-defined resolution ratio of page configuration, when a main interface is restored to display, reading the self-defined resolution ratio and calculating a proper proportion through a function. After the screen projection is started, when the player is started to initialize the player screen, the player can calculate the self-defined resolution ratio to an appropriate ratio before the player draws the screen, and the player is sent to the player, so that the self-defined resolution ratio is presented in the screen (surfaceview) drawn by the player. Thus, the customized resolution of the whole program is realized.
After setting the resolution, the system saves to the local, and when returning to the main interface, reconfigures the layout of the main interface by the onResume method to achieve the resolution update of the main interface, which mainly depends on redrawing each displayed control by calculation through px and dx conversion of the existing resolution. For example, generally, the setup widgets are displayed in units of dp, and when they are actually displayed, the widgets are displayed in units of px (pixels), and the conversion relationship between them is px 0.5+ dp system density. For example, the default or current resolution of the system is 1920x1080, and if the client wants to have an actual screen with a resolution of 300x200 (i.e. the set resolution), a control that should be displayed 30dp (45px) wide needs to be divided by 1920 and multiplied by 300 to calculate the actual display width of the control to be 4.7dp (7.47 px);
after receiving a screen projection request and after building a new channel, when receiving a stream and starting to create a surfaceview, configuring the surfaceview into a size required by a user for drawing after acquiring the user-defined resolution of the user and the full-screen resolution of computing equipment, and distinguishing the display of horizontal and vertical screens according to different screen projection modes and displaying different computing proportions.
The embodiment performs global design of special resolution, facilitates operation experience of a user, can perform global special resolution setting by modifying the setting once, and can modify the setting at any time to meet configuration requirements of the special resolution of the user and intelligent horizontal and vertical screen zooming requirements.
In this embodiment, a screen projection solution for a time-domain signal stream, especially for time-domain audio/video data, referring to fig. 2, specifically before scaling an initial picture to be rendered in the above step S4, the method further includes receiving an image signal according to the following steps:
s41, the player receives the time domain signal stream and creates a windowed data set according to the time domain signal stream.
S42, the processor converts the windowed data set to a frequency domain data set and stores the resulting data as frequency domain data having a base transform resolution.
S43, performing complex spectral phase evolution on the frequency domain data to estimate component frequencies of the frequency domain data at a resolution greater than the base transform resolution.
In particular, a unified domain representation of data from complex spectral phase evolution is provided to enable the use of direction estimates in the unified domain to fit the constituent components of the signal.
S44, using the component frequencies estimated in the complex spectral phase evolution, a set of pre-stored frequency domain windows is sampled to select one of them to match at least one of the amplitude, phase, amplitude modulation and frequency modulation of the fundamental signal oscillator.
Specifically, parameters required for at least one of FM creation and AM creation are stored in the frequency domain, wherein the parameters for FM creation include amplitude, phase, reference frequency, and modulation rate, and the parameters for AM creation include amplitude, phase, frequency, and amplitude envelope information. Recreating a spectrum of at least one of the FM and AM modulated oscillator peaks, the spectrum including any transient effects that the oscillator is capable of turning on or off at some point within the data sampling window.
S45, using a tracking algorithm to identify a tracker consisting of one or more oscillator peaks emitted by the oscillation source of the base signal oscillator matched in step S44.
In particular, the oscillator peak further includes oscillator peak signal spread information to represent the signal elements to a desired accuracy. Further, a continuous wrapping effect and/or a plurality of wrapping effects are included in the spectrum of the oscillator peak signal spread information.
S46, grouping tracks originating from a single source and providing a signal to the player.
The processing of the time domain signal stream in the embodiment can enable the time domain signal stream to be played in the screen projection process, no stuck point exists in the whole process, and the watching experience of a user is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A screen projection playing control method with interface universe adaptation is characterized by comprising the following steps:
s1, configuring the self-defined resolution of the main interface and the playing picture in the screen projection when the screen projection is not performed;
s2, when the main interface is restored to display, reading the self-defined resolution and the current resolution of the system, configuring the width and the height of all controls in the main interface, and waiting for screen projection;
s3, according to the screen projection trigger signal, before the player draws a picture, calculating the ratio of the self-defined resolution to the current resolution of the system, and sending the ratio to the player;
and S4, the player scales the initial picture to be drawn according to the received scale value and presents the scaled picture.
2. The method for controlling screen-projection playing of claim 1, wherein before scaling the initial picture to be rendered in step S4, the method further comprises receiving an image signal according to the following steps:
s41, the player receives the time domain signal stream and creates a windowed data set according to the time domain signal stream;
s42, converting the windowed data set into a frequency domain data set by the processor, and storing the obtained data into frequency domain data with basic transformation resolution;
s43, performing complex spectral phase evolution on the frequency domain data, estimating component frequencies of the frequency domain data at a resolution greater than the base transform resolution;
s44, using the component frequencies estimated in the complex spectral phase evolution, sampling a set of pre-stored frequency domain windows to select one frequency domain window therefrom to match at least one of amplitude, phase, amplitude modulation, and frequency modulation of the fundamental signal oscillator;
s45, using a tracking algorithm to identify a tracker consisting of one or more oscillator peaks emitted by the oscillation source of the base signal oscillator matched in step S44;
s46, grouping tracks originating from a single source and providing a signal to the player.
3. The screen-projection playing control method of claim 2, wherein the step S44 further comprises: parameters required for at least one of FM creation and AM creation are stored in the frequency domain, wherein the parameters for FM creation include amplitude, phase, reference frequency, and modulation rate, and the parameters for AM creation include amplitude, phase, frequency, and amplitude envelope information.
4. The screen-projection playing control method of claim 3, wherein the step S44 further comprises: recreating a spectrum of at least one of the FM and AM modulated oscillator peaks, the spectrum including any transient effects that the oscillator is capable of turning on or off at some point within the data sampling window.
5. The screen-projection playing control method of claim 2, wherein the step S43 further comprises: a unified domain representation of data from complex spectral phase evolution is provided to enable the use of direction estimates in the unified domain to fit the constituent components of the signal.
6. The method for controlling screen projection play of claim 3, wherein the oscillator peak value in step S45 further comprises oscillator peak value signal extension information to represent signal elements to a desired precision.
7. The screen-casting playback control method of claim 6, further comprising including a continuous wrapping effect and/or a plurality of wrapping effects in a spectrum of the oscillator peak signal spread information.
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| CN202011615546.XA CN112822547B (en) | 2020-12-30 | 2020-12-30 | Screen-throwing play control method for interface global adaptation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253959A (en) * | 2021-05-26 | 2021-08-13 | 智慧泉城智能科技有限公司 | Front-end screen projection method adaptive to different large screen resolutions |
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| CN108279894A (en) * | 2016-12-30 | 2018-07-13 | 乐视汽车（北京）有限公司 | Throw screen resolution conversion method and conversion equipment |
| CN112019898A (en) * | 2020-08-27 | 2020-12-01 | 北京字节跳动网络技术有限公司 | Screen projection method and device, electronic equipment and computer readable medium |
| CN112019897A (en) * | 2020-08-27 | 2020-12-01 | 北京字节跳动网络技术有限公司 | Screen projection method and device, electronic equipment and computer readable medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108279894A (en) * | 2016-12-30 | 2018-07-13 | 乐视汽车（北京）有限公司 | Throw screen resolution conversion method and conversion equipment |
| CN112019898A (en) * | 2020-08-27 | 2020-12-01 | 北京字节跳动网络技术有限公司 | Screen projection method and device, electronic equipment and computer readable medium |
| CN112019897A (en) * | 2020-08-27 | 2020-12-01 | 北京字节跳动网络技术有限公司 | Screen projection method and device, electronic equipment and computer readable medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113253959A (en) * | 2021-05-26 | 2021-08-13 | 智慧泉城智能科技有限公司 | Front-end screen projection method adaptive to different large screen resolutions |
| CN113253959B (en) * | 2021-05-26 | 2023-04-07 | 济南浪潮智投智能科技有限公司 | Front-end screen projection method adaptive to different large screen resolutions |
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