WO2021169168A1 - Video file preview method and display device - Google Patents

Abstract

The present application discloses a video file preview method and a display device. The method comprises: in response to a first instruction for viewing media applications, displaying a media application interface on a display, wherein icons of multiple media application files are displayed in the media application interface, the multiple media application files include at least one video file, and each media application file has a corresponding preset image displayed at the location of the icon of the media application file; and acquiring the position of a focal point, and when the position of the focal point is at the location of an icon of a video file and if it is determined that the video file meets a playback condition, hiding the preset image at the position of the icon of the video file, and playing video content of the video file at the position of the icon.

Description

Video file preview method and display device

This application requires priority to be submitted to the Chinese Patent Office on February 28, 2020, with the application number CN202010130047.5, and the application title "A display control method and display device for media applications"; it is submitted to China on June 28, 2020 Priority of the Patent Office, the application number is CN202010597658.0, and the application name is "a method and display device for previewing video files"; the entire contents of which are incorporated in this application by reference.

Technical field

This application relates to the field of display technology, and in particular to a video file preview method and display device.

Background technique

A smart TV usually contains an application function of media playback, which can be called a media center. The media center can support the playback of local media and the browsing and playback of media application files in DLNA (Digital Living Network Alliance) devices that are mounted. The media application files include, but are not limited to, image files and audio files As well as video files, it can also be an application folder.

When the user chooses to enter the media center, the corresponding default picture is usually displayed in the media application file. However, for a better user experience, in some scenarios, video thumbnails in the video file can be further displayed, so that the user can intuitively understand the actual content of the video file.

However, when displaying the thumbnail of a video file, only the thumbnail of the video screenshot of the video file can be captured. Therefore, the displayed thumbnail of the video file can only be a static picture, which cannot enable the user to fully understand the content of the video file.

Summary of the invention

In view of this, this application provides a video file preview method and display device to achieve the purpose of previewing the content of the video file in a media application.

Specifically, this application is implemented through the following technical solutions:

In the first aspect, this application provides a display device, including:

Display, used to display graphical user interface;

Controller, used to execute:

In response to the first instruction to view the media application, a media application interface is displayed on the display. The media application interface displays icons of a plurality of media application files, and the plurality of media application files includes at least one video file. The icon of the media application file displays the preset picture corresponding to the media application file;

Obtain the position of the focus. When the position of the focus is at the icon of the video file, if it is determined that the video file meets the playing conditions, hide the preset picture at the icon position of the video file, and play the video file at the icon position Video content in.

In a second aspect, this application provides a method for previewing a video file, the method including:

In response to the first instruction to view the media application, a media application interface is displayed on the display. The media application interface displays icons of a plurality of media application files, and the plurality of media application files includes at least one video file. The icon of the media application file displays the preset picture corresponding to the media application file;

Obtain the position of the focus. When the position of the focus is at the icon of the video file, if it is determined that the video file meets the playing conditions, hide the preset picture at the icon position of the video file, and play the video file at the icon position Video content in.

In the above embodiment, the display device can hide the preset picture at the icon position of the video file when it is determined that the focus position is at the icon of the video file, and if the video file can be played, the video is played at the icon position. The video content in the file can be previewed in a small window at the icon of the video file, which optimizes the user’s viewing experience and avoids the problem of conflicts between the thumbnail grabbing and the player.

Description of the drawings

FIG. 1A exemplarily shows a schematic diagram of an operation scene between the display device 200 and the control 100;

FIG. 1B exemplarily shows a configuration block diagram of the control device 100 in FIG. 1A;

FIG. 1C exemplarily shows a configuration block diagram of the display device 200 in FIG. 1A;

FIG. 1D exemplarily shows a block diagram of the architecture configuration of the operating system in the memory of the display device 200;

A schematic diagram of the control device 100 is exemplarily shown in FIG. 1E;

2A and 2B exemplarily show a schematic diagram of a GUI provided by the display device 200;

FIG. 3 exemplarily shows a flowchart of a video file preview method provided by the display device 200;

FIG. 4 exemplarily shows a schematic diagram of another GUI provided by the display device 200;

5A and 5B exemplarily show schematic diagrams of another GUI provided by the display device 200;

FIG. 6 exemplarily shows a detailed processing flowchart of a video file preview that provides a function required to execute image content in a display device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the exemplary embodiments of the present application. Obviously The described exemplary embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

Based on the exemplary embodiments shown in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application. In addition, although the disclosure in this application is introduced in accordance with one or several exemplary examples, it should be understood that various aspects of these disclosures can also be individually constituted as a complete technical solution.

The terms "including" and "having" and any variations of them used in this application are intended to cover but not exclusively include. For example, a product or device that includes a series of components is not necessarily limited to those clearly listed, and Yes may include other components that are not clearly listed or are inherent to these products or devices.

The term "module" used in this application refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that can perform functions related to the element.

The term "gesture" used in this application refers to a user's behavior through a change of hand shape or hand movement to express expected ideas, actions, goals, and/or results.

FIG. 1A exemplarily shows a schematic diagram of an operation scene between the display device 200 and the control device 100. As shown in FIG. 1A, the control device 100 and the display device 200 can communicate in a wired or wireless manner.

Among them, the control device 100 is configured to control the display device 200, which can receive operation instructions input by the user, and convert the operation instructions into instructions that the display device 200 can recognize and respond to, and act as an intermediary for the interaction between the user and the display device 200 effect. For example, the user operates the channel addition and subtraction keys on the control device 100, and the display device 200 responds to the channel addition and subtraction operations.

The control device 100 may be a remote controller 100A, including infrared protocol communication or Bluetooth protocol communication, and other short-distance communication methods, etc., to control the display device 200 in a wireless or other wired manner. The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, etc. For example, the user can control the display device 200 by inputting corresponding control commands through the volume plus and minus keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, and power on/off keys on the remote control. Function.

The control device 100 may also be a smart device, such as a mobile terminal 100B, a tablet computer, a computer, a notebook computer, and the like. For example, an application program running on a smart device is used to control the display device 200. The application can be configured to provide users with various controls through an intuitive user interface (UI) on the screen associated with the smart device.

Exemplarily, the mobile terminal 100B may install a software application with the display device 200, realize connection communication through a network communication protocol, and realize the purpose of one-to-one control operation and data communication. For example, the mobile terminal 100B can establish a control instruction protocol with the display device 200, and realize the functions of the physical keys arranged in the remote control 100A by operating various function keys or virtual buttons of the user interface provided on the mobile terminal 100B. The audio and video content displayed on the mobile terminal 100B can also be transmitted to the display device 200 to realize the synchronous display function.

The display device 200 can be implemented as a television, and can provide a smart network television function with a broadcast receiving television function and a computer support function. Examples of display devices include digital TV, Internet TV, smart TV, Internet Protocol TV (IPTV), and so on.

The display device 200 may be a liquid crystal display, an organic light emitting display, or a projection display device. The specific display device type, size and resolution are not limited.

The display device 200 also performs data communication with the server 300 through a variety of communication methods. Here, the display device 200 may be allowed to communicate through a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 300 may provide various contents and interactions to the display device 200. For example, the display device 200 can send and receive information, such as receiving electronic program guide (EPG) data, receiving software program updates, or accessing a remotely stored digital media library. The server 300 can be one group or multiple groups, and can be one type or multiple types of servers. The server 300 provides other network service content such as video-on-demand and advertising services.

FIG. 1B exemplarily shows a configuration block diagram of the control device 100. As shown in FIG. 1B, the control device 100 includes a controller 110, a memory 120, a communicator 130, a user input interface 140, an output interface 150, and a power supply 160.

The controller 110 includes a random access memory (RAM) 111, a read only memory (ROM) 112, a processor 113, a communication interface, and a communication bus. The controller 110 is used to control the operation and operation of the control device 100, as well as the communication and cooperation between internal components, and external and internal data processing functions.

Exemplarily, when an interaction of a user pressing a button arranged on the remote control 100A or an interaction of touching a touch panel arranged on the remote control 100A is detected, the controller 110 may control to generate a signal corresponding to the detected interaction, and This signal is sent to the display device 200.

The memory 120 is used to store various operating programs, data, and applications for driving and controlling the control device 100 under the control of the controller 110. The memory 120 can store various control signal instructions input by the user.

The communicator 130 realizes the communication of control signals and data signals with the display device 200 under the control of the controller 110. For example, the control device 100 sends a control signal (such as a touch signal or a button signal) to the display device 200 via the communicator 130, and the control device 100 can receive the signal sent by the display device 200 via the communicator 130. The communicator 130 may include an infrared signal interface 131 and a radio frequency signal interface 132. For example, in the case of an infrared signal interface, the user input instruction needs to be converted into an infrared control signal according to the infrared control protocol, and sent to the display device 200 via the infrared sending module. For another example, in the case of a radio frequency signal interface, a user input instruction needs to be converted into a digital signal, which is then modulated according to the radio frequency control signal modulation protocol, and then sent to the display device 200 by the radio frequency sending terminal.

The user input interface 140 may include at least one of a microphone 141, a touch panel 142, a sensor 143, a button 144, etc., so that the user can input user instructions for controlling the display device 200 to the control device through voice, touch, gesture, pressing, etc. 100.

The output interface 150 outputs a user instruction received by the user input interface 140 to the display device 200, or outputs an image or voice signal received by the display device 200. Here, the output interface 150 may include an LED interface 151, a vibration interface 152 that generates vibration, a sound output interface 153 that outputs a sound, a display 154 that outputs an image, and the like. For example, the remote controller 100A can receive output signals such as audio, video, or data from the output interface 150, and display the output signals as images on the display 154, as audio on the sound output interface 153, or as vibration on the vibration interface 152. form.

The power supply 160 is used to provide operating power support for each element of the control device 100 under the control of the controller 110. The form can be battery and related control circuit.

FIG. 1C exemplarily shows a block diagram of the hardware configuration of the display device 200. As shown in FIG. 1C, the display device 200 may further include a tuner and demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a memory 260, a user interface 265, a video processor 270, and a display 275. , Audio processor 280, audio output interface 285, power supply 290.

The tuner and demodulator 210, which receives broadcast television signals through wired or wireless means, can perform modulation and demodulation processing such as amplification, mixing and resonance, and is used to demodulate the television selected by the user from multiple wireless or cable broadcast television signals The audio and video signals carried in the frequency of the channel, as well as additional information (such as EPG data).

The tuner and demodulator 210 can be selected by the user and controlled by the controller 250 to respond to the frequency of the television channel selected by the user and the television signal carried by the frequency.

The tuner and demodulator 210 can receive signals in many ways according to different broadcasting formats of TV signals, such as terrestrial broadcasting, cable broadcasting, satellite broadcasting or Internet broadcasting; and according to different modulation types, it can be digital modulation or analog Modulation method; and according to different types of received TV signals, analog signals and digital signals can be demodulated.

In some other exemplary embodiments, the tuner demodulator 210 may also be in an external device, such as an external set-top box. In this way, the set-top box outputs a TV signal after modulation and demodulation, and is input to the display device 200 through the external device interface 240.

The communicator 220 is a component used to communicate with external devices or external servers according to various types of communication protocols. For example, the display device 200 may transmit content data to an external device connected via the communicator 220, or browse and download content data from an external device connected via the communicator 220. The communicator 220 may include a network communication protocol module such as a WIFI module 221, a Bluetooth module 222, and a wired Ethernet module 223 or a near field communication protocol module, so that the communicator 220 can receive the control signal of the control device 100 according to the control of the controller 250, and Realize the control signal as WIFI signal, Bluetooth signal, radio frequency signal, etc.

The detector 230 is a component of the display device 200 for collecting signals from the external environment or interacting with the outside. The detector 230 may include an image collector 231, such as a camera, a camera, etc., which can be used to collect external environment scenes to adaptively change the display parameters of the display device 200; and to collect the attributes of the user or interact with the user gestures to achieve Display the function of interaction between the device and the user. It may also include a light receiver 232 for collecting the ambient light intensity to adapt to changes in display parameters of the display device 200 and so on.

In some other exemplary embodiments, the detector 230 may also include a temperature sensor. For example, by sensing the ambient temperature, the display device 200 may adaptively adjust the display color temperature of the image. Exemplarily, when the temperature is relatively high, the color temperature of the display device 200 can be adjusted to be colder; when the temperature is relatively low, the color temperature of the display device 200 can be adjusted to be warmer.

In some other exemplary embodiments, the detector 230 may also include a sound collector, such as a microphone, which may be used to receive the user's voice, such as a voice signal of a control instruction for the user to control the display device 200; or, may be used to collect The environmental sound of the environmental scene type is recognized, so that the display device 200 can adapt to the environmental noise.

The external device interface 240 is a component that provides the controller 210 to control the data transmission between the display device 200 and external devices. The external device interface 240 can be connected to external devices such as set-top boxes, game devices, notebook computers, etc. in a wired/wireless manner, and can receive external devices such as video signals (such as moving images), audio signals (such as music), and additional information (such as EPG). ) And other data.

Among them, the external device interface 240 may include: a high-definition multimedia interface (HDMI) terminal 241, a composite video blanking synchronization (CVBS) terminal 242, an analog or digital component terminal 243, a universal serial bus (USB) terminal 244, and a component (Component) Any one or more of terminals (not shown in the figure), red, green and blue (RGB) terminals (not shown in the figure), etc.

The controller 250 controls the work of the display device 200 and responds to user operations by running various software control programs (such as an operating system and various application programs) stored on the memory 260.

As shown in FIG. 1C, the controller 250 includes a random access memory (RAM) 251, a read only memory (ROM) 252, a graphics processor 253, a processor 254, a communication interface 255, and a communication bus 256. Among them, the RAM 251, the ROM 252, the graphics processor 253, and the processor 254 communication interface 255 are connected through a communication bus 256.

ROM252, used to store various system startup instructions. For example, when the power-on signal is received, the power of the display device 200 starts to start, and the processor 254 runs the system startup instruction in the ROM 252, and copies the operating system stored in the memory 260 to the RAM 251 to start the operating system. After the operating system is started, the processor 254 copies various application programs in the memory 260 to the RAM 251, and then starts to run and start various application programs.

The graphics processor 253 is used to generate screen images of various graphics objects, such as icons, images, and operation menus. The graphics processor 253 may include an arithmetic unit, which is used to perform operations by receiving various interactive instructions input by the user, and then display various objects according to the display attributes; and a renderer, which is used to generate various objects obtained based on the arithmetic unit, and perform The rendered result is displayed on the display 275.

The processor 254 is configured to execute operating system and application program instructions stored in the memory 260. And according to the received user input instructions, to execute various applications, data and content processing, so as to finally display and play various audio and video content.

In some exemplary embodiments, the processor 254 may include multiple processors. The multiple processors may include a main processor and multiple or one sub-processors. The main processor is configured to perform some initialization operations of the display device 200 in the display device preloading mode, and/or, to display screen operations in the normal mode. Multiple or one sub-processor, used to perform an operation in the standby mode of the display device.

The communication interface 255 may include the first interface to the nth interface. These interfaces may be network interfaces connected to external devices via a network.

The controller 250 may control the overall operation of the display device 200. For example, in response to receiving a user input command for selecting a GUI object displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user input command.

Among them, the object can be any one of the selectable objects, such as a hyperlink or an icon. The operation related to the selected object, for example, the operation of displaying the page, document, image, etc. connected to the hyperlink, or the operation of executing the program corresponding to the icon. The user input command for selecting the GUI object may be a command input through various input devices (for example, a mouse, a keyboard, a touch pad, etc.) connected to the display device 200 or a voice command corresponding to the voice spoken by the user.

The memory 260 is used to store various types of data, software programs or application programs for driving and controlling the operation of the display device 200. The memory 260 may include volatile and/or non-volatile memory. The term “memory” includes the memory 260, the RAM 251 and ROM 252 of the controller 250, or the memory card in the display device 200.

In some embodiments, the memory 260 is specifically used to store the operating program that drives the controller 250 in the display device 200; to store various application programs built in the display device 200 and downloaded from external devices by the user; and to store the configuration provided by the display 275 Data such as various GUIs, various objects related to the GUI, and visual effect images of the selector used to select GUI objects.

In some embodiments, the memory 260 is specifically used to store drivers and related data of the tuner and demodulator 210, the communicator 220, the detector 230, the external device interface 240, the video processor 270, the display 275, the audio processor 280, etc. , External data (such as audio and video data) received from the external device interface or user data (such as button information, voice information, touch information, etc.) received from the user interface.

In some embodiments, the memory 260 specifically stores software and/or programs for representing an operating system (OS). These software and/or programs may include, for example, a kernel, middleware, application programming interface (API), and/or application. Exemplarily, the kernel can control or manage system resources and functions implemented by other programs (such as the middleware, API, or application program); at the same time, the kernel can provide interfaces to allow middleware, API, or application program access control To control or manage system resources.

FIG. 1D exemplarily shows a block diagram of the architecture configuration of the operating system in the memory of the display device 200. The operating system architecture consists of the application layer, the middleware layer, and the kernel layer from top to bottom.

Application layer, system built-in applications and non-system-level applications belong to the application layer, which is responsible for direct interaction with users. The application layer can include multiple applications, such as NETFLIX applications, settings applications, media center applications, and so on. These applications can be implemented as Web applications, which are executed based on the WebKit engine, and specifically can be developed and executed based on HTML, Cascading Style Sheets (CSS) and JavaScript.

Here, HTML, the full name of HyperText Markup Language (HyperText Markup Language), is a standard markup language used to create web pages. Web pages are described through markup tags. HTML tags are used to describe text, graphics, animations, sounds, tables, For links, the browser will read the HTML document, explain the content of the tags in the document, and display it in the form of a web page.

CSS, the full name of Cascading Style Sheets (Cascading Style Sheets), is a computer language used to express the style of HTML files, and can be used to define style structures, such as fonts, colors, and positions. CSS styles can be directly stored in HTML web pages or in separate style files to achieve control over styles in web pages.

JavaScript is a language used in web page programming, which can be inserted into HTML pages and interpreted and executed by the browser. The interaction logic of the web application is implemented through JavaScript. JavaScript can encapsulate the JavaScript extension interface through the browser to realize the communication with the kernel layer,

The middleware layer can provide some standardized interfaces to support the operation of various environments and systems. For example, the middleware layer can be implemented as the Multimedia and Hypermedia Information Coding Expert Group (MHEG) of the middleware related to data broadcasting, and can also be implemented as the DLNA middleware of the middleware related to external device communication, and can also be implemented as providing Display the middleware of the browser environment in which each application in the device runs.

The kernel layer provides core system services, such as file management, memory management, process management, network management, system security authority management and other services. The kernel layer can be implemented as a kernel based on various operating systems, for example, a kernel based on the Linux operating system.

The kernel layer also provides communication between system software and hardware, and provides device driver services for various hardware, such as: providing display drivers for displays, camera drivers for cameras, button drivers for remote controls, and WIFI modules Provide WiFi driver, audio driver for audio output interface, power management driver for power management (PM) module, etc.

The user interface 265 receives various user interactions. Specifically, it is used to send the input signal of the user to the controller 250, or to transmit the output signal from the controller 250 to the user. Exemplarily, the remote control 100A may send input signals input by the user, such as a power switch signal, a channel selection signal, and a volume adjustment signal, to the user interface 265, and then the user interface 265 transfers to the controller 250; or the remote control 100A may Receive output signals such as audio, video, or data output from the user interface 265 after the controller 250 processes, and display the received output signal or output the received output signal as audio or vibration.

In some embodiments, the user may input a user command on a graphical user interface (GUI) displayed on the display 275, and the user interface 265 receives the user input command through the GUI. Specifically, the user interface 265 may receive user input commands for controlling the position of the selector in the GUI to select different objects or items.

Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user interface 265 recognizes the sound or gesture through the sensor to receive the user input command.

The video processor 270 is used to receive external video signals, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to the standard codec protocol of the input signal. The video signal displayed or played directly on the display 275.

For example, the video processor 270 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

Among them, the demultiplexing module is used to demultiplex the input audio and video data stream, such as the input MPEG-2 stream (based on the compression standard of digital storage media moving images and voice), then the demultiplexing module will demultiplex it Multiplexed into video signals and audio signals, etc.

The video decoding module is used to process the demultiplexed video signal, including decoding and scaling.

An image synthesis module, such as an image synthesizer, is used to superimpose and mix the GUI signal generated by the graphics generator with the zoomed video image according to user input or itself to generate an image signal for display.

The frame rate conversion module is used to convert the frame rate of the input video, such as converting the frame rate of the input 60Hz video to a frame rate of 120Hz or 240Hz, and the usual format is realized by such as frame interpolation.

The display formatting module is used to change the signal output by the frame rate conversion module to a signal conforming to the display format such as a display, for example, format the signal output by the frame rate conversion module to output RGB data signals.

The display 275 is used to receive the image signal output from the video processor 270 to display video, image, and menu control interface. For example, the display may display the video in the broadcast signal received from the tuner and demodulator 210, may also display the video input from the communicator 220 or the external device interface 240, and may also display the image stored in the memory 260. The display 275 simultaneously displays a user manipulation interface UI generated in the display device 200 and used to control the display device 200.

And, the display 275 may include a display screen component for presenting a picture and a driving component for driving image display. Alternatively, if the display 275 is a projection display, it may also include a projection device and a projection screen.

The audio processor 280 is used to receive external audio signals, and perform decompression and decoding according to the standard codec protocol of the input signal, as well as audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing, so that it can be stored in the speaker 286 The audio signal to be played.

Exemplarily, the audio processor 280 may support various audio formats. Such as MPEG-2, MPEG-4, Advanced Audio Coding (AAC), High Efficiency AAC (HE-AAC) and other formats.

The audio output interface 285 is used to receive audio signals output from the audio processor 280. For example, the audio output interface can output audio in the broadcast signal received via the tuner demodulator 210, can also output audio input via the communicator 220 or the external device interface 240, and can also output audio stored in the memory 260. The audio output interface 285 may include a speaker 286, or an external audio output terminal 287 output to a generator of an external device, such as a headphone output terminal.

In some other exemplary embodiments, the video processor 270 may include one or more chips. The audio processor 280 may also include one or more chips.

And, in some other exemplary embodiments, the video processor 270 and the audio processor 280 may be separate chips, or may be integrated with the controller 250 in one or more chips.

The power supply 290 is used to provide power supply support for the display device 200 with power input from an external power supply under the control of the controller 250. The power supply 290 may be a built-in power supply circuit installed inside the display device 200, or may be a power supply installed outside the display device 200.

It should be noted that, in order to select and execute related functions (such as image settings, sound settings, etc.) required by the image content service provided by the display device 200, the display device 200 provides multiple menu items for selecting functions. At the same time, as As shown in FIG. 1E, the control device 100 configured to control the display device 200 is implemented as a remote controller, which includes a plurality of numeric buttons for selecting menu items, channel +/- buttons, volume +/- buttons, and OK buttons. , Direction buttons, color buttons, shortcut application buttons, etc., to prompt the user that the display device 200 can execute the menu item function adapted to the corresponding button by operating the button on the control device 100.

Here, the corresponding function information on the page has a mapping relationship with the key information on the control device 100. Specifically, when the display device 200 receives the key event value corresponding to each key on the control device 100 input by the user, the display device 200 can perform the function operation corresponding to the key event value based on the mapping relationship, which can facilitate the user to Visually, the buttons on the control device 100 are matched with the function of each option.

FIG. 2A exemplarily shows a schematic diagram of a GUI provided by the display device 200.

The user can open the connected external device by operating the menu key of the control device 100, thereby notifying the user that the display device is currently connected to an external device, and can configure and browse the content provided by the external device. As shown in FIG. 2A, the display device may provide a GUI 400 to the display, and the GUI 400 displays the media center application page corresponding to the external device connected to the display device. The media center application page is used to display the services provided by the external device. For example, the media center application page includes a device name bar, a search bar, a display mode selection dialog, a classification form selection dialog, a media type selection dialog, and multiple media applications File icon.

The device name bar is used to display the name of the external device, the search bar is used to directly search for specific files; the display mode selection dialog is used to select the display mode of the media application file icon (including grid mode and list mode); the classification mode selection dialog The box is used to select the classification form (including classification by name, classification by modification date, and classification by size); the media type selection dialog box user selects the media type (including all types, pictures, videos, music, and videos), and the user can select the media type Select different media types in the selection dialog box to filter out non-selected types of media application files and reduce the number of media application files displayed on the media center application page.

The media center application page also includes file paths and functional options to guide user operations, which can be implemented as green color blocks and blue color blocks. The green color block is used to prompt the user to press the green button on the control device to create a list, and the blue color block is used to prompt the user to press the blue button on the control device to return to the top.

The icons of multiple media application files are used to represent the files saved in the opened device. Media application files can include folders and video files (the currently displayed video file is the icon of the folder where the current focus is located, and the corresponding folder The audio and video files saved in the file), where the audio and video files can include video files (the third and fourth icons from the left in the first row in Figure 2A), and music files (the fifth and fifth icons in the first row in Figure 2A). Icon, the first icon from the left in the second row), image files (the second and third icons from the left in the second row in Figure 2A). The user can move the focus to other folder icons. By operating the control device, the display device makes the focus select the folder icon based on user input. After that, the audio and video files displayed on the media center application page will be changed to the focused selection The icon of the folder, the audio and video files saved in the corresponding folder. The user can also move the focus to the video file icon. By operating the control device, the display device makes the focus select the video file icon based on user input, and the video file selected by the focus can be directly opened. If the video file is a video file, the video will be played directly, if the video file is a music file, the music will be played directly.

The video and audio file icons of video files and music files also display the playing time. If the playing time is less than 1 hour, only the minutes and seconds are displayed, such as 01:54; if the playing time is greater than 1 hour, the hours and minutes are displayed. Duration and duration in seconds, for example, it is displayed as 01:30:54.

In some embodiments, the media center can classify music, video, and picture resources. Under the current classification, folders and corresponding media application files are displayed. When you first enter the media application center, the icon of the media application file will first display a default picture, which is a preset picture set for the media application file before leaving the factory, as shown in the icon of the media application file in FIG. 2A.

When the media application file contains a video file, the current video file preview scheme is to directly grab the thumbnail resource of the video. The specific display steps of the thumbnail are as follows:

After entering the media application center, multi-threading is established and the Media Metadata Retriver method is used to capture the video thumbnail of each video file in parallel. If the thumbnail capture is successful, the thumbnail is displayed at the icon of the media application file, and the captured thumbnail is used to replace the previous preset picture. The actual effect of the TV is shown in Figure 2B, which is compared with the interface in Figure 2A. , The icon of the video file in the interface of FIG. 2B can display static thumbnails of the video file, such as thumbnail 1 and thumbnail 2. If the thumbnail capture fails, the preset picture is still displayed, as shown in Figure 2A.

When displaying the thumbnail of a video file, since only the thumbnail of the video screenshot of the video file can be captured, the displayed thumbnail of the video file can only be a static picture, which cannot enable the user to fully understand the content of the video file. During the process of fetching thumbnails, since the player also needs to play the video file in the background in order to perform the thumbnail fetching, it will cause conflicts between the fetching process and the playback of the player, especially when multiple video files are displayed in the interface. It is necessary to grab the thumbnails of multiple video files at the same time, which can easily lead to the problem of player crash and playback failure.

In response to the problems posed above, this application provides a video file preview method and display device, which can play the video through a small window at the focus of the video file, and the default picture is still displayed at other media application files, so that the user can pass The small window intuitively understands the dynamic video content of the video file, while avoiding the conflict between the thumbnail grabbing operation and the player, improving the viewing experience, and avoiding the player from crashing.

Please refer to the following examples for specific solutions.

In the first embodiment, the present application provides a display device. Specifically, some components in the display device can also perform the following operations:

Display, used to display graphical user interface;

The controller is used to perform the operation steps shown in Figure 3:

Step 301: In response to the first instruction to view the media application, display a media application interface on the display, the media application interface displays icons of multiple media application files, and the multiple media application files include at least one video file, A preset picture corresponding to the media application file is displayed at the icon of each media application file.

In this embodiment, when the user triggers the first instruction to view the media application through the remote control, the media application interface is displayed on the display, and the media application interface displays the icons of multiple media application files provided by the external device selected by the user. At least one video file is included in the plurality of media application files, and a preset picture corresponding to the media application file is displayed at the icon of each media application file, as shown in FIG. 2A.

Step 302: Obtain the position of the focus. When the position of the focus is located at the icon of the video file, if it is determined that the video file meets the playing conditions, hide the preset picture at the icon position of the video file, and play all the images at the icon position. Describe the video content in the video file.

The controller can obtain the position of the focus in the media application interface, and the position of the focus can be determined by the coordinates in the interface of the focus. The user can move the focus position through the remote control buttons.

When the focus position is at the icon of the video file, it means that the user may watch the video file, so it can be judged whether the video file meets the playing condition.

Specifically, it is possible to obtain the type of the video file by obtaining the set of video file types supported by the local chip, and determine whether the type of the video file is in the type set, and if so, it is determined that the video file conforms to playing Condition; if not, it is determined that the video file does not meet the playback condition.

For example, the video file type set Z supported by the display device chip includes mp4, rm, rmvb, flv, hdr, and the controller can obtain the video file type (such as mp4) of the current video file from the metadata, and determine the file type of the current video file Whether it is in the set Z, if yes, it is considered that the video file can be played; if not, it is considered that the video file does not meet the playing conditions. If the video file type is mp4, and mp4 is in the set Z, it is determined that the video file meets the playing conditions and can be played.

If it is determined that the video file meets the playing condition, the preset picture at the icon position of the video file is hidden, and the video content in the video file is played at the icon position.

As shown in Figure 4, the focus is at the icon of the first video file. Assuming that the video file meets the playing conditions, the default picture at the icon of the video file will be hidden, and the video content of the video file will be played instead. Compared with the existing display device that displays static thumbnails at the video file icon in the media center, this application can display dynamic video content, so that users can understand the video more clearly and intuitively without playing the video source. The specific content of the film source to optimize the user experience.

In one embodiment, if it is determined that the video file meets the playback conditions, before the video content is played, it can be further determined whether the local memory is sufficient, if so, the complete video file is obtained; if not, the complete video file is obtained; Fragments of video files.

Specifically, the controller can use the getFreeMemory() method to obtain the current memory margin and determine whether the amount of memory is greater than or equal to a preset threshold. For example, the threshold is set to 30% of the total memory. If it is, the memory is considered sufficient; if not, it is considered Not enough storage. If the current memory is sufficient, set the mode of playing the entire source, so as to obtain the complete video file; if the memory is insufficient, set the mode of only playing the video clip, so as to obtain the clip of the video file, for example, only before the video is played 5s, you only need to get the video content of the first 5s. Each player of the display device can support the above two playback scenarios.

In this embodiment, when the video content in the video file is played at the icon position, a new layer can be created at the icon position, and a video player can be created in the layer; The video file or the fragment of the video file is injected into the video player to play the video content in the video file.

For example, first hide the default picture at the icon of the current video file, and then create and initialize the layer surfaceview at the icon. If the surfaceview is created successfully, further create and initialize the player on the layer to obtain the video Assign the address of the file to the player, for example, assign the address of the video file /storage/3311-396B/video/video.mp4 to the player, and then call the start() interface to play the video content of the video file, so that the user You can preview the current video file; if the initialization fails, the default picture is still displayed, as shown in Figure 5A.

When the video content in the video file is played at the position of the icon, different play modes will cause different video content to be played. When it is determined to be the mode of playing the entire source, the controller will obtain the complete video file and inject it into the player, and the player will play the complete video file; when the mode of playing the video fragment is determined, the controller will inject the fragment of the obtained video file In the video player, the player can play the video clips in the video file.

Further, no matter which mode the player is in, the controller can replay the injected video content when the playback of the current video content is completed, so that the player can play the video content in a loop.

In one embodiment, based on step 302, determining whether the position of the focus is located at the icon of the video file specifically includes: acquiring the position of the focus, and when the position of the focus is the same as the position of the icon of the video file, if the position of the focus is the same as the position of the icon of the video file, The staying time of the focus at the position is greater than or equal to the preset time, then it is determined that the position of the focus is located at the icon of the video file.

For example, suppose that the position of the icon of the video file is position A, and the position where the focus is obtained is position B. When position A and position B are the same, determine whether the focus stays at position B for more than 1 second, if so, determine the focus Located at the icon of the video file, the operation in step 302 can be performed to finally play the video content, as shown in Figure 4; if not, it is determined that the focus is not at the icon of the video file, and the default picture can still be displayed, as shown in Figure 5A Shown.

By setting the judgment of the focus stay time, it is possible to avoid resource waste caused by the controller frequently initializing player resources and releasing resources when the user frequently moves the focus. When the user's focus stays on the video file for more than the preset time, it means that the user intends to watch the movie, and then preview the video file in a small window, which can satisfy the user's viewing while avoiding resource waste caused by frequent switching of previewed video files.

In one embodiment, when the user triggers the second instruction to move the focus through the remote control, the controller can move the position of the focus in response to the second instruction to move the focus; stop the video currently playing on the icon position of the video file Content, release resources, and display the preset picture corresponding to the video file at the position of the icon.

When the user moves the focus to the icon of the next video file, the process of step 302 can be repeated. If it is determined that the current video file can be played, the preset picture at the icon position of the video file is hidden and played at the icon position The video content in the video file. As shown in Figure 5B, it can be seen that when the user moves the focus from the first video file to the second video file, the icon of the first video file displays the preset picture, and the icon of the second video file displays a small window. Play video content. Therefore, in this application, the video preview can only be performed at the icon of the video file where the focus is located, and the preset pictures are still displayed in other video files, so as to avoid multiple video players from occupying too much resources in parallel.

In an embodiment, when the controller plays the video content in the video file at the icon position of the video file, it can also adjust the volume of the played video content in response to the third instruction to adjust the volume sent by the user. Therefore, the user can adjust the volume of the video while enjoying the preview of the video file in the small window, thereby enhancing the operability of the video preview and further optimizing the user's video preview experience.

As shown in FIG. 6, the specific operation process of the method for previewing a video file by the controller in this embodiment includes:

Step 601: Receive a first instruction to enter the media center, and display a media application interface, which includes multiple media application files;

The media application file includes at least one video file.

Step 602: Display a default picture at the icon of the media application file;

Step 603: Determine whether the focus position is located at the icon of the video file, if yes, go to step 604; if not, go to step 602;

Step 604: Determine whether the focus stay time exceeds the preset time, if yes, go to step 605; if not, go to step 602;

Step 605: Judge whether the video file meets the playing conditions, if yes, go to step 606; if not, go to step 602;

Step 606: Determine whether the memory is sufficient, if yes, go to step 607; if not, go to step 608;

Step 607: Obtain the video content of the complete video file, and proceed to step 609;

Step 608: Obtain the video content of a part of the video file, and go to step 609;

Step 609: Hide the default picture at the icon of the video file, create a player to play the acquired video content in a loop, and go to step 610;

Step 610: Receive the second instruction to move the focus, release the player resources, display the default picture, and go to step 603.

For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the implementation to the specific form disclosed above. According to the above teaching, various modifications and variations can be obtained. The selection and description of the foregoing embodiments are for better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various modified embodiments suitable for specific use considerations.

Claims (14)

1. A display device, characterized in that it comprises:

   Display, used to display graphical user interface;

   Controller, used to execute:

   In response to the first instruction to view the media application, a media application interface is displayed on the display. The media application interface displays icons of a plurality of media application files, and the plurality of media application files includes at least one video file. The icon of the media application file displays the preset picture corresponding to the media application file;

   Obtain the position of the focus. When the position of the focus is at the icon of the video file, if it is determined that the video file meets the playing conditions, hide the preset picture at the icon position of the video file, and play the video file at the icon position Video content in.
2. 5. The display device of claim 1, wherein determining whether the video file meets the playback condition specifically includes:

   Obtain the set of video file types supported by the local chip, obtain the type of the video file, and determine whether the type of the video file is in the type set, if yes, determine that the video file meets the playback condition; if not, then It is determined that the video file does not meet the playback conditions.
3. 5. The display device of claim 1, wherein after determining that the video file meets the playing conditions, the method further comprises:

   Determine whether the local memory is sufficient, if so, obtain the complete video file; if not, obtain a fragment of the video file;

   Said playing the video content in the video file at the position of the icon specifically includes:

   Create a new layer at the position of the icon, and create a video player in the layer;

   Injecting the obtained complete video file or fragments of the video file into the video player to play the video content in the video file.
4. The display device according to claim 3, wherein injecting the obtained complete video file or fragments of the video file into the video player to play the video content in the video file specifically includes:

   Controlling the video player to cyclically play the video content injected into the video file of the video player.
5. The display device of claim 1, further comprising:

   In response to the second instruction to move the focus, move the position of the focus;

   Stop the video content playing at the icon position of the video file, and display the preset picture corresponding to the video file at the icon position.
6. The display device of claim 1, wherein determining whether the focus position is located at the icon of the video file specifically includes:

   The position of the focus is acquired, and when the position of the focus is the same as the position of the icon of the video file, if the dwell time of the focus at the position is greater than or equal to the preset time, it is determined that the position of the focus is located at the icon of the video file.
7. 8. The display device of claim 1, wherein after playing the video content in the video file at the icon position, the method further comprises:

   In response to the third instruction to adjust the volume, the volume of the played video content is adjusted.
8. A video file preview method, characterized in that the method includes:

   In response to the first instruction to view the media application, a media application interface is displayed on the display. The media application interface displays icons of a plurality of media application files, and the plurality of media application files includes at least one video file. The icon of the media application file displays the preset picture corresponding to the media application file;

   Obtain the position of the focus. When the position of the focus is at the icon of the video file, if it is determined that the video file meets the playing conditions, hide the preset picture at the icon position of the video file, and play the video file at the icon position Video content in.
9. 8. The method of claim 8, wherein the method for judging that the video file can be played specifically includes:

   Obtain the set of video file types supported by the local chip, obtain the type of the video file, and determine whether the type of the video file is in the type set, if yes, determine that the video file meets the playback condition; if not, then It is determined that the video file does not meet the playback conditions.
10. 8. The method according to claim 8, wherein after it is determined that the video file meets the playing conditions, the method further comprises:

    Determine whether the local memory is sufficient, if so, obtain the complete video file; if not, obtain a fragment of the video file;

    Said playing the video content in the video file at the position of the icon specifically includes:

    Create a new layer at the position of the icon, and create a video player in the layer;

    Injecting the obtained complete video file or fragments of the video file into the video player to play the video content in the video file.
11. The method according to claim 10, wherein injecting the obtained complete video file or fragments of the video file into the video player to play the video content in the video file specifically comprises:

    Controlling the video player to cyclically play the video content injected into the video file of the video player.
12. The method according to claim 8, wherein the method further comprises:

    In response to the second instruction to move the focus, move the position of the focus;

    Stop the video content playing at the icon position of the video file, and display the preset picture corresponding to the video file at the icon position.
13. 8. The method of claim 8, wherein the method of determining whether the focus position is located at the icon of the video file specifically comprises:

    The position of the focus is acquired, and when the position of the focus is the same as the position of the icon of the video file, if the dwell time of the focus at the position is greater than or equal to the preset time, it is determined that the position of the focus is located at the icon of the video file.
14. 8. The method of claim 8, wherein after playing the video content in the video file at the icon position, the method further comprises:

    In response to the third instruction to adjust the volume, the volume of the played video content is adjusted.

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