WO2021232398A1 - 媒体文件的播放方法及显示设备 - Google Patents

媒体文件的播放方法及显示设备 Download PDF

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Publication number
WO2021232398A1
WO2021232398A1 PCT/CN2020/091738 CN2020091738W WO2021232398A1 WO 2021232398 A1 WO2021232398 A1 WO 2021232398A1 CN 2020091738 W CN2020091738 W CN 2020091738W WO 2021232398 A1 WO2021232398 A1 WO 2021232398A1
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WO
WIPO (PCT)
Prior art keywords
media file
display device
display
memory
feature code
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Application number
PCT/CN2020/091738
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English (en)
French (fr)
Inventor
朱敏
马峥
王彬
王钊
Original Assignee
青岛海信传媒网络技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 青岛海信传媒网络技术有限公司 filed Critical 青岛海信传媒网络技术有限公司
Priority to PCT/CN2020/091738 priority Critical patent/WO2021232398A1/zh
Publication of WO2021232398A1 publication Critical patent/WO2021232398A1/zh

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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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations

Definitions

  • This application relates to the field of display technology, and in particular to a method for playing media files and a display device.
  • the display device in order to meet the needs of presenting the best display status of the display device to the user in the shopping mall mode, the display device is configured with a demonstration video that matches its model, and the display device will be matched with the display device's The demonstration video matching the model is permanently stored in the display device.
  • the embodiments of the present application provide a method for playing media files and a display device to save storage space of the display device.
  • a display device including:
  • the external device interface is used to connect the external device that provides the media file; the external device also provides the feature code corresponding to the media file;
  • a display device including:
  • External device interface used to connect external devices that provide media files
  • a display device including:
  • External device interface used to connect external devices that provide media files
  • the target media file in the memory is deleted.
  • a display device including:
  • External device interface used to connect external devices that provide media files
  • a method for playing media files includes:
  • a method for playing media files including:
  • a method for playing a media file includes:
  • the target media file in the memory is deleted.
  • a method for playing a media file includes:
  • 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.
  • Fig. 2 is a flowchart of an embodiment of a method for playing media files provided by an exemplary embodiment of the application
  • FIG. 3 is a schematic diagram of a mode configuration interface 300
  • FIG. 4 is an example of playing the image content 400 of the target media file on the display of the display device
  • Fig. 5 is a flowchart of an embodiment of another method for playing media files provided by an exemplary embodiment of the application
  • FIG. 6 is a flowchart of an embodiment of another method for playing media files provided by an exemplary embodiment of the application.
  • FIG. 7 is a flowchart of an embodiment of still another method for playing media files according to an exemplary embodiment of this application.
  • FIG. 8 is a schematic diagram of the setting interface 800.
  • module refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic or a combination of hardware or/and software code that can perform functions related to the element.
  • 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.
  • the control device 100 and the display device 200 can communicate in a wired or wireless manner.
  • 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.
  • 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.
  • 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.
  • a smart device such as a mobile terminal 100B, a tablet computer, a computer, a notebook computer, and the like.
  • 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.
  • UI intuitive user interface
  • 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.
  • 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.
  • 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.
  • 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.
  • EPG electronic program guide
  • 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.
  • 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.
  • RAM random access memory
  • ROM read only memory
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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
  • modulation and demodulation processing such as amplification, mixing and resonance
  • 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.
  • different broadcasting formats of TV signals such as terrestrial broadcasting, cable broadcasting, satellite broadcasting or Internet broadcasting
  • modulation types it can be digital modulation or analog Modulation method
  • received TV signals, analog signals and digital signals can be demodulated.
  • the tuner demodulator 210 may also be in an external device, such as an external set-top box.
  • 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.
  • 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 communication protocol module 222, and a wired Ethernet communication protocol module 223 or a near field communication protocol module, so that the communicator 220 can receive the control device 100 according to the control of the controller 250 Control signals, and implement the control signals as WIFI signals, Bluetooth signals, radio frequency signals, 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.
  • the detector 230 may also include a temperature sensor.
  • the display device 200 may adaptively adjust the display color temperature of the image. Exemplarily, when the temperature is relatively high, the display device 200 can be adjusted to display an image with a cooler color temperature; when the temperature is relatively low, the display device 200 can be adjusted to display an image with a warmer color temperature.
  • 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.
  • a sound collector such as a microphone
  • the user's voice such as a voice signal of a control instruction for the user to control the display device 200
  • the display device 200 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.
  • 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.
  • HDMI high-definition multimedia interface
  • CVBS composite video blanking synchronization
  • USB universal serial bus
  • 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.
  • various software control programs such as an operating system and various application programs
  • the controller 250 includes a random access memory (RAM) 251, a read only memory (ROM) 252, a graphics processor 253, a CPU processor 254, a communication interface 255, and a communication bus 256.
  • RAM random access memory
  • ROM read only memory
  • CPU CPU processor
  • communication interface 255 a communication bus 256.
  • the RAM 251, the ROM 252, the graphics processor 253, and the CPU processor 254 communication interface 255 are connected via 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 CPU processor 254 runs the system start-up instruction in the ROM 252, and copies the operating system stored in the memory 260 to the RAM 251 to start running the start-up operating system. After the operating system is started up, the CPU 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 display attributes; and includes 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 CPU 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, various application programs, data and content processing are executed, so as to finally display and play various audio and video content.
  • the CPU 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.
  • 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.
  • 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 an external device by the user; and the storage is used for 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.
  • 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.
  • External data such as audio and video data
  • user data such as button information, voice information, touch information, etc.
  • 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.
  • OS operating system
  • these software and/or programs may include, for example, a kernel, middleware, application programming interface (API), and/or application.
  • 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.
  • 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.
  • CSS Cascading Style Sheets
  • HTML HyperText Markup Language
  • 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 documents, 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.
  • 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.
  • MHEG Multimedia and Hypermedia Information Coding Expert Group
  • 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.
  • 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.
  • the remote control 100A may send input signals such as a power switch signal, a channel selection signal, and a volume adjustment signal input by the user 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.
  • 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.
  • GUI graphical user interface
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 the user input or itself, so as 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.
  • 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.
  • the display 275 may include a display screen component for presenting a picture and a driving component for driving image display.
  • the display 275 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.
  • 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.
  • AAC Advanced Audio Coding
  • HE-AAC High Efficiency AAC
  • the audio output interface 285 is used to receive audio signals output from the audio processor 280.
  • 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.
  • the video processor 270 may include one or more chips.
  • the audio processor 280 may also include one or more chips.
  • 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.
  • Smart TVs can be divided into two modes according to their usage status, namely home mode and shopping mall mode.
  • the family mode is a mode set by the user to buy home from the store and watch TV programs normally.
  • the shopping mall mode is a mode set according to the environment of the store.
  • some parameters of the display device such as brightness parameters, contrast parameters, chromaticity parameters, sharpness parameters, etc.
  • the display device can present the best display state that it can achieve and satisfy most users.
  • the salesperson usually configures the display device in the mall mode to present the best display state of the display device or its display characteristics to the user.
  • a display device with good color performance can be configured with a richer picture color demonstration video, which is a good picture quality performance.
  • the display device is configured with a high-brightness demonstration video, which can present the characteristics of the display device to the user in the best display state.
  • the manufacturer individually configures a demonstration video that can show the characteristics of the display device according to the model of each display device.
  • the demonstration video is cleared.
  • a special partition is created on the display device to permanently store the demo video.
  • Commonly used demonstration videos are full HD videos or 4K videos, with a size between 500MB and 1000MB.
  • users rarely use the mall mode in daily applications, which leads to a waste of storage space for display devices.
  • this application provides a method for playing media files.
  • this method it is possible to obtain a demonstration video that can display the characteristics of the display device from an external device such as a USB flash drive when the display device is configured in a shopping mall mode. , Thereby saving the storage space of the display device.
  • the tool program md5sum which is used to calculate and verify file message digests, is used, and the message digest algorithm Message-Digest Algorithm 5 is used.
  • md5sum which is used to calculate and verify file message digests
  • Message-Digest Algorithm 5 is used.
  • the smart adaptation plays the demo video corresponding to the md5 code pre-made by the system stored in the inserted external device.
  • the feature code of the media file configured to display the characteristics of the display device is determined.
  • the feature code is represented by an MD5 value. Save the above feature code in a file, and name the file, for example, name it as an MD5 file. Delete the original partition on the display device for permanent storage of demo videos, expand the user space on the display device memory accordingly, and store the named file with the signature code in the system ROM to prevent tampering.
  • the above-mentioned improvement may occur before the display device leaves the factory.
  • the above-mentioned improvement may occur after the display device is shipped from the factory.
  • the above improvements are made to the display device through system upgrades.
  • the media file that is configured to display the characteristics of the display device will also be stored on an external device such as a USB flash drive. This enables the display device to obtain a demonstration video that can show the characteristics of the display device from an external device.
  • different external devices are configured for display devices of different models, that is, each model corresponds to one external device, and the external device stores at least a media file configured to display the characteristics of the display device of the model.
  • one external device is configured for display devices of different models, that is, multiple media files are stored in the external device, and the multiple media files are respectively configured to display display device characteristics of different models.
  • feature codes corresponding to all or part of the media files are also stored on the external device.
  • FIG. 2 is a flowchart of an embodiment of a method for playing media files provided by an exemplary embodiment of this application.
  • the flow includes the following steps:
  • Step S21 In response to the input instruction for instructing to start the first mode, search for a target media file matching the feature code from the external device based on the feature code of the media file that is pre-stored in the memory and configured to display the characteristics of the display device .
  • the first mode here is the above-mentioned shopping mall mode.
  • the video when the display device starts the first mode, the video is played automatically.
  • the controller in response to the input instruction for instructing to start the first mode, the controller automatically retrieves the data from the external device based on the feature code of the media file that is pre-stored in the memory and is configured to display the characteristics of the display device. Find the target media file that matches the signature.
  • the match mentioned here means that the feature code of the target media file is the same as the feature code pre-stored in the memory of the display device.
  • the user may send an input instruction for instructing to start the first mode to the display device by pressing a setting button for starting the first mode on the control device.
  • the user can control the display device to display the mode configuration interface 300 as illustrated in FIG. 3 through the control device. Then, if the button 310 on the mode configuration interface 300 is in the off state, the user clicks the button 310 to send an input instruction for instructing to start the first mode to the display device.
  • the same feature code can be searched from the external device based on the feature code pre-stored in the memory.
  • the media file corresponding to the same feature code is acquired as the target media file.
  • the feature code of the media file in the external device is calculated, and the calculated feature code is compared with the feature code pre-stored in the memory. If they are consistent, the media file in the external device is determined as the aforementioned target media file.
  • a fault-tolerant mechanism can be provided, especially when different external devices are configured for display devices of different models, which can effectively reduce the failure to obtain the target media file when the external device is connected incorrectly. Probability.
  • Step S22 Play the target media file.
  • FIG. 4 it is an example of playing the image content 400 of the target media file on the display of the display device.
  • Embodiment 1 So far, the description of Embodiment 1 is completed.
  • the display device Search for a demonstration video that can show the characteristics of the display device from an external device, thereby saving the storage space of the display device.
  • FIG. 5 is a flowchart of an embodiment of another method for playing media files provided by an exemplary embodiment of this application.
  • the flow includes the following steps:
  • Step S51 in response to the input instruction for instructing to start the first mode, based on the feature code of the media file configured to display the characteristics of the display device pre-stored in the memory, search for a target media file matching the feature code from the external device .
  • step S21 For the detailed description of this step, please refer to the description in the above step S21, which will not be described in detail here.
  • Step S52 Copy the target media file in the external device to the storage, and play the target media file.
  • the target media file in the external device is copied to the memory.
  • the target media file is copied to the user space in the memory to facilitate subsequent applications.
  • this embodiment 2 usually occurs when an external device is connected to the display device for the first time, that is, after the display device finds a target media file configured to display the characteristics of the display device from the external device for the first time, the target media Files are copied to the storage of this device for subsequent applications.
  • Embodiment 2 So far, the description of Embodiment 2 is completed.
  • FIG. 6 is a flowchart of an embodiment of another media file playback method provided by an exemplary embodiment of this application. Based on the above-mentioned flow shown in FIG. 5, the process includes the following steps:
  • Step S61 In response to the input instruction for instructing to start the first mode, it is determined whether there is a media file configured to display the characteristics of the display device in the memory, if so, step S62 is executed, and if not, step S63 is executed.
  • Step S62 Play the media file in the memory.
  • Step S63 Based on the feature code of the media file that is pre-stored in the memory and configured to display the characteristics of the display device, search for a target media file matching the feature code from the external device.
  • Step S64 Play the target media file.
  • the controller in response to the input instruction for instructing to start the first mode, the controller first determines whether there is a media file configured to display the characteristics of the display device in the memory, and if so, it can Step S62 is executed to play the media file in the memory. If not, step S63 is executed. As for the detailed description of step S63, please refer to the description of step S21 above, which will not be described in detail here.
  • this embodiment 3 usually occurs when an external device is not connected to the display device for the first time, that is, when the display device starts the first mode for the first time, it first searches the storage of the device and is configured as If the media file displaying the characteristics of the display device is not found, the media file configured to display the characteristics of the display device is further searched from the external device, so as to reduce the dependence on the external device.
  • Embodiment 3 So far, the related description of Embodiment 3 is completed.
  • FIG. 7 is a flowchart of an embodiment of another media file playback method provided by an exemplary embodiment of this application.
  • the process includes the following steps:
  • Step S71 In response to the input instruction for instructing to start the first mode, search for a target media file matching the feature code from the external device based on the feature code of the media file that is pre-stored in the memory and configured to display the characteristics of the display device .
  • step S21 For the detailed description of this step, please refer to the description in the above step S21, which will not be described in detail here.
  • Step S72 Copy the target media file in the external device to the storage, and play the target media file.
  • step S52 For a detailed description of this step, refer to the description in step S52 above, which will not be described in detail here.
  • Step S73 In response to the input instruction for instructing reset, delete the target media file in the memory.
  • the user can control the display device to display the setting interface 800 as illustrated in FIG. 8 through the control device. Based on FIG. 8, the user can trigger the "reset” button on the setting interface 800 through the control device. When the "reset” button is triggered, the display device receives the control instruction input by the user to indicate reset.
  • the controller deletes the target media file in the memory in response to the input instruction for instructing the reset.
  • the media file configured to display the characteristics of the display device is stored on the external device, and the feature code of the media file is stored in the memory of the display device.
  • the feature code is , The display device searches for a demonstration video that can show the characteristics of the display device from the external device, thereby saving the storage space of the display device;
  • the user space of the display device can be saved.

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Abstract

本申请公开了一种媒体文件的播放方法，包括：响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。

Description

媒体文件的播放方法及显示设备 技术领域
本申请涉及显示技术领域，尤其涉及一种媒体文件的播放方法及显示设备。
背景技术
相关技术中，为了满足在商场模式下，将显示设备最好的显示状态呈现给用户的需求，为显示设备配置与其机型相匹配的演示视频，并且在显示设备出厂时，将与显示设备的机型相匹配的演示视频永久地存储在显示设备中。
然而，用户在日常应用中几乎用不到商场模式，如此也就导致显示设备存储空间的浪费。
发明内容
本申请实施例提供一种媒体文件的播放方法及显示设备，用以节省显示设备的存储空间。
第一方面，提供一种显示设备，包括：
显示器；
用户接口；
外部装置接口，用于连接提供媒体文件的外部设备；其中，外部设备还提供媒体文件对应的特征码；
存储器；
控制器，用于执行：
响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
第二方面，提供一种显示设备，包括：
显示器；
用户接口；
外部装置接口，用于连接提供媒体文件的外部设备；
存储器；
控制器，用于执行：
响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件。
第三方面，提供一种显示设备，包括：
显示器；
用户接口；
外部装置接口，用于连接提供媒体文件的外部设备；
存储器；
控制器，用于执行：
响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件；
响应于用于指示复位的输入指令，删除所述存储器中的目标媒体文件。
第四方面，提供一种显示设备，包括：
显示器；
用户接口；
外部装置接口，用于连接提供媒体文件的外部设备；
存储器；
控制器，用于执行：
响应于用于指示启动第一模式的输入指令，在确定存储器中不存在被配置为展示显示设备特性的媒体文件时，基于存储器内预先存储的所述媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
第五方面，提供一种媒体文件的播放方法，所述方法包括：
响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
第六方面，提供一种媒体文件的播放方法，所述方法包括：
响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件。
第七方面，提供一种媒体文件的播放方法，所述方法包括：
响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件；
响应于用于指示复位的输入指令，删除所述存储器中的目标媒体文件。
第八方面，提供一种媒体文件的播放方法，所述方法包括：
响应于用于指示启动第一模式的输入指令，在确定存储器中不存在被配置为展示显示设备特性的媒体文件时，基于存储器内预先存储的所述媒体文件的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
附图说明
图1A中示例性示出了显示设备200与控制100之间操作场景的示意图；
图1B中示例性示出了图1A中控制装置100的配置框图；
图1C中示例性示出了图1A中显示设备200的配置框图；
图1D中示例性示出了显示设备200存储器中操作系统的架构配置框图。
图2为本申请一示例性实施例提供的一种媒体文件的播放方法的实施例流程图；
图3为模式配置界面300的示意图；
图4为在显示设备的显示器上播放目标媒体文件的图像内容400的一种示例；
图5为本申请一示例性实施例提供的另一种媒体文件的播放方法的实施例 流程图；
图6为本申请一示例性实施例提供的又一种媒体文件的播放方法的实施例流程图；
图7为本申请一示例性实施例提供的再一种媒体文件的播放方法的实施例流程图；
图8为设置界面800的示意图。
具体实施方式
为使本申请示例性实施例的目的、实施方式和优点更加清楚，下面将结合本申请示例性实施例中的附图，对本申请示例性实施例中的实施方式进行清楚、完整地描述，显然，所描述的示例性实施例仅是本申请一部分实施例，而不是全部的实施例。
基于本申请中示出的示例性实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。此外，虽然本申请中公开内容按照示范性一个或几个实例来介绍，但应理解，可以就这些公开内容的各个方面也可以单独构成一个完整实施方式。
本申请中使用的术语“包括”和“具有”以及他们的任何变形，意图在于覆盖但不排他的包含，例如，包含了一系列组件的产品或设备不必限于清楚地列出的那些组件，而是可包括没有清楚地列出的或对于这些产品或设备固有的其它组件。
本申请中使用的术语“模块”，是指任何已知或后来开发的硬件、软件、固件、人工智能、模糊逻辑或硬件或/和软件代码的组合，能够执行与该元件相关 的功能。
本申请中使用的术语“手势”，是指用户通过一种手型的变化或手部运动等动作，用于表达预期想法、动作、目的/或结果的用户行为。
图1A中示例性示出了显示设备200与控制装置100之间操作场景的示意图。如图1A所示，控制装置100和显示设备200之间可以有线或无线方式进行通信。
其中，控制装置100被配置为控制显示设备200，其可接收用户输入的操作指令，且将操作指令转换为显示设备200可识别和响应的指令，起着用户与显示设备200之间交互的中介作用。如：用户通过操作控制装置100上频道加减键，显示设备200响应频道加减的操作。
控制装置100可以是遥控器100A，包括红外协议通信或蓝牙协议通信，及其他短距离通信方式等，通过无线或其他有线方式来控制显示设备200。用户可以通过遥控器上按键、语音输入、控制面板输入等输入用户指令，来控制显示设备200。如：用户可以通过遥控器上音量加减键、频道控制键、上/下/左/右的移动按键、语音输入按键、菜单键、开关机按键等输入相应控制指令，来实现控制显示设备200的功能。
控制装置100也可以是智能设备，如移动终端100B、平板电脑、计算机、笔记本电脑等。例如，使用在智能设备上运行的应用程序控制显示设备200。该应用程序通过配置可以在与智能设备关联的屏幕上，通过直观的用户界面(UI)为用户提供各种控制。
示例性的，移动终端100B可与显示设备200安装软件应用，通过网络通信协议实现连接通信，实现一对一控制操作的和数据通信的目的。如：可以使 移动终端100B与显示设备200建立控制指令协议，通过操作移动终端100B上提供的用户界面的各种功能键或虚拟按钮，来实现如遥控器100A布置的实体按键的功能。也可以将移动终端100B上显示的音视频内容传输到显示设备200上，实现同步显示功能。
显示设备200可被实施为电视，可提供广播接收电视功能以及计算机支持功能的智能网络电视功能。显示设备示例的包括，数字电视、网络电视、智能电视、互联网协议电视(IPTV)等。
显示设备200，可以是液晶显示器、有机发光显示器、投影显示设备。具体显示设备类型、尺寸大小和分辨率等不作限定。
显示设备200还与服务器300通过多种通信方式进行数据通信。这里可允许显示设备200通过局域网(LAN)、无线局域网(WLAN)和其他网络进行通信连接。服务器300可以向显示设备200提供各种内容和互动。示例的，显示设备200可以发送和接收信息，例如：接收电子节目指南(EPG)数据、接收软件程序更新、或访问远程储存的数字媒体库。服务器300可以一组，也可以多组，可以一类或多类服务器。通过服务器300提供视频点播和广告服务等其他网络服务内容。
图1B中示例性示出了控制装置100的配置框图。如图1B所示，控制装置100包括控制器110、存储器120、通信器130、用户输入接口140、输出接口150、供电电源160。
控制器110包括随机存取存储器(RAM)111、只读存储器(ROM)112、处理器113、通信接口以及通信总线。控制器110用于控制控制装置100的运行和操作，以及内部各部件之间的通信协作、外部和内部的数据处理功能。
示例性的，当检测到用户按压在遥控器100A上布置的按键的交互或触摸在遥控器100A上布置的触摸面板的交互时，控制器110可控制产生与检测到的交互相应的信号，并将该信号发送到显示设备200。
存储器120，用于在控制器110的控制下存储驱动和控制控制装置100的各种运行程序、数据和应用。存储器120，可以存储用户输入的各类控制信号指令。
通信器130在控制器110的控制下，实现与显示设备200之间控制信号和数据信号的通信。如：控制装置100经由通信器130将控制信号(例如触摸信号或按钮信号)发送至显示设备200上，控制装置100可经由通信器130接收由显示设备200发送的信号。通信器130可以包括红外信号接口131和射频信号接口132。例如：红外信号接口时，需要将用户输入指令按照红外控制协议转化为红外控制信号，经红外发送模块进行发送至显示设备200。再如：射频信号接口时，需将用户输入指令转化为数字信号，然后按照射频控制信号调制协议进行调制后，由射频发送端子发送至显示设备200。
用户输入接口140，可包括麦克风141、触摸板142、传感器143、按键144等中至少一者，从而用户可以通过语音、触摸、手势、按压等将关于控制显示设备200的用户指令输入到控制装置100。
输出接口150，通过将用户输入接口140接收的用户指令输出至显示设备200，或者，输出由显示设备200接收的图像或语音信号。这里，输出接口150可以包括LED接口151、产生振动的振动接口152、输出声音的声音输出接口153和输出图像的显示器154等。例如，遥控器100A可从输出接口150接收音频、视频或数据等输出信号，并且将输出信号在显示器154上显示为图像形 式、在声音输出接口153输出为音频形式或在振动接口152输出为振动形式。
供电电源160，用于在控制器110的控制下为控制装置100各元件提供运行电力支持。形式可以为电池及相关控制电路。
图1C中示例性示出了显示设备200的硬件配置框图。如图1C所示，显示设备200中可以进一步包括调谐解调器210、通信器220、检测器230、外部装置接口240、控制器250、存储器260、用户接口265、视频处理器270、显示器275、音频处理器280、音频输入接口285、供电电源290。
调谐解调器210，通过有线或无线方式接收广播电视信号，可以进行放大、混频和谐振等调制解调处理，用于从多个无线或有线广播电视信号中解调出用户所选择的电视频道的频率中所携带的音视频信号，以及附加信息(例如EPG数据)。
调谐解调器210，可根据用户选择，以及由控制器250控制，响应用户选择的电视频道的频率以及该频率所携带的电视信号。
调谐解调器210，根据电视信号的广播制式不同，可以接收信号的途径有很多种，诸如：地面广播、有线广播、卫星广播或互联网广播等；以及根据调制类型不同，可以数字调制方式或模拟调制方式；以及根据接收电视信号的种类不同，可以解调模拟信号和数字信号。
在其他一些示例性实施例中，调谐解调器210也可在外部设备中，如外部机顶盒等。这样，机顶盒通过调制解调后输出电视信号，经过外部装置接口240输入至显示设备200中。
通信器220，是用于根据各种通信协议类型与外部设备或外部服务器进行通信的组件。例如显示设备200可将内容数据发送至经由通信器220连接的外 部设备，或者，从经由通信器220连接的外部设备浏览和下载内容数据。通信器220可以包括WIFI模块221、蓝牙通信协议模块222、有线以太网通信协议模块223等网络通信协议模块或近场通信协议模块，从而通信器220可根据控制器250的控制接收控制装置100的控制信号，并将控制信号实现为WIFI信号、蓝牙信号、射频信号等。
检测器230，是显示设备200用于采集外部环境或与外部交互的信号的组件。检测器230可以包括图像采集器231，如相机、摄像头等，可以用于采集外部环境场景，以自适应变化显示设备200的显示参数；以及用于采集用户的属性或与用户交互手势，以实现显示设备与用户之间互动的功能。还可以包括光接收器232，用于采集环境光线强度，以自适应显示设备200的显示参数变化等。
在其他一些示例性实施例中，检测器230，还可以包括温度传感器，如通过感测环境温度，显示设备200可自适应调整图像的显示色温。示例性的，当温度偏高的环境时，可调整显示设备200显示图像色温偏冷色调；当温度偏低的环境时，可以调整显示设备200显示图像色温偏暖色调。
在其他一些示例性实施例中，检测器230，还可以包括声音采集器，如麦克风，可以用于接收用户的声音，如用户控制显示设备200的控制指令的语音信号；或者，可以采集用于识别环境场景类型的环境声音，实现显示设备200可以自适应环境噪声。
外部装置接口240，是提供控制器210控制显示设备200与外部设备间数据传输的组件。外部装置接口240可按照有线/无线方式与诸如机顶盒、游戏装置、笔记本电脑等外部设备连接，可接收外部设备的诸如视频信号(例如运动 图像)、音频信号(例如音乐)、附加信息(例如EPG)等数据。
其中，外部装置接口240可以包括：高清多媒体接口(HDMI)端子241、复合视频消隐同步(CVBS)端子242、模拟或数字分量端子243、通用串行总线(USB)端子244、组件(Component)端子(图中未示出)、红绿蓝(RGB)端子(图中未示出)等任一个或多个。
控制器250，通过运行存储在存储器260上的各种软件控制程序(如操作系统和各种应用程序)，来控制显示设备200的工作和响应用户的操作。
如图1C所示，控制器250包括随机存取存储器(RAM)251、只读存储器(ROM)252、图形处理器253、CPU处理器254、通信接口255、以及通信总线256。其中，RAM251、ROM252以及图形处理器253、CPU处理器254通信接口255通过通信总线256相连接。
ROM252，用于存储各种系统启动指令。如在接收到开机信号时，显示设备200电源开始启动，CPU处理器254运行ROM252中的系统启动指令，将存储在存储器260的操作系统拷贝至RAM251中，以开始运行启动操作系统。当操作系统启动完成后，CPU处理器254再将存储器260中各种应用程序拷贝至RAM251中，然后，开始运行启动各种应用程序。
图形处理器253，用于产生各种图形对象的屏幕图像，如图标、图像以及操作菜单等。图形处理器253可以包括运算器，用于通过接收用户输入各种交互指令进行运算，进而根据显示属性显示各种对象；以及包括渲染器，用于产生基于运算器得到的各种对象，将进行渲染的结果显示在显示器275上。
CPU处理器254，用于执行存储在存储器260中的操作系统和应用程序指令。以及根据接收的用户输入指令，来执行各种应用程序、数据和内容的处理， 以便最终显示和播放各种音视频内容。
在一些示例性实施例中，CPU处理器254，可以包括多个处理器。多个处理器可包括一个主处理器以及多个或一个子处理器。主处理器，用于在显示设备预加载模式中执行显示设备200的一些初始化操作，和/或，在正常模式下显示画面的操作。多个或一个子处理器，用于执行在显示设备待机模式等状态下的一种操作。
通信接口255，可包括第一接口到第n接口。这些接口可以是经由网络被连接到外部设备的网络接口。
控制器250可以控制显示设备200的整体操作。例如：响应于接收到用于选择在显示器275上显示的GUI对象的用户输入命令，控制器250便可以执行与由用户输入命令选择的对象有关的操作。
其中，该对象可以是可选对象中的任何一个，例如超链接或图标。该与所选择的对象有关的操作，例如显示连接到超链接页面、文档、图像等操作，或者执行与图标相对应的程序的操作。该用于选择GUI对象的用户输入命令，可以是通过连接到显示设备200的各种输入装置(例如，鼠标、键盘、触摸板等)输入命令或者是与用户说出语音相对应的语音命令。
存储器260，用于存储驱动和控制显示设备200运行的各种类型的数据、软件程序或应用程序。存储器260可以包括易失性和/或非易失性存储器。而术语“存储器”包括存储器260、控制器250的RAM251和ROM252、或显示设备200中的存储卡。
在一些实施例中，存储器260具体用于存储驱动显示设备200中控制器250的运行程序；存储显示设备200内置的和用户从外部设备下载的各种应用程序； 存储用于配置由显示器275提供的各种GUI、与GUI相关的各种对象及用于选择GUI对象的选择器的视觉效果图像等数据。
在一些实施例中，存储器260具体用于存储调谐解调器210、通信器220、检测器230、外部装置接口240、视频处理器270、显示器275、音频处理器280等的驱动程序和相关数据，从外部装置接口接收的外部数据(例如音视频数据)或用户接口接收的用户数据(例如按键信息、语音信息、触摸信息等)。
在一些实施例中，存储器260具体存储用于表示操作系统(OS)的软件和/或程序，这些软件和/或程序可包括，例如：内核、中间件、应用编程接口(API)和/或应用程序。示例性的，内核可控制或管理系统资源，以及其它程序所实施的功能(如所述中间件、API或应用程序)；同时，内核可以提供接口，以允许中间件、API或应用程序访问控制器，以实现控制或管理系统资源。
图1D中示例性示出了显示设备200存储器中操作系统的架构配置框图。该操作系统架构从上到下依次是应用层、中间件层和内核层。
应用层，系统内置的应用程序以及非系统级的应用程序都属于应用层，其负责与用户进行直接交互。应用层可包括多个应用程序，如NETFLIX应用程序、设置应用程序、媒体中心应用程序等。这些应用程序可被实现为Web应用，其基于WebKit引擎来执行，具体可基于HTML、层叠样式表(CSS)和JavaScript来开发并执行。
这里，HTML，全称为超文本标记语言(HyperText Markup Language)，是一种用于创建网页的标准标记语言，通过标记标签来描述网页，HTML标签用以说明文字、图形、动画、声音、表格、链接等，浏览器会读取HTML文档，解释文档内标签的内容，并以网页的形式显示出来。
CSS，全称为层叠样式表(Cascading Style Sheets)，是一种用来表现HTML文件样式的计算机语言，可以用来定义样式结构，如字体、颜色、位置等的语言。CSS样式可以直接存储与HTML网页或者单独的样式文件中，实现对网页中样式的控制。
JavaScript，是一种应用于Web网页编程的语言，可以插入HTML页面并由浏览器解释执行。其中Web应用的交互逻辑都是通过JavaScript实现。JavaScript可以通过浏览器，封装JavaScript扩展接口，实现与内核层的通信，
中间件层，可以提供一些标准化的接口，以支持各种环境和系统的操作。例如，中间件层可以实现为与数据广播相关的中间件的多媒体和超媒体信息编码专家组(MHEG)，还可以实现为与外部设备通信相关的中间件的DLNA中间件，还可以实现为提供显示设备内各应用程序所运行的浏览器环境的中间件等。
内核层，提供核心系统服务，例如：文件管理、内存管理、进程管理、网络管理、系统安全权限管理等服务。内核层可以被实现为基于各种操作系统的内核，例如，基于Linux操作系统的内核。
内核层也同时提供系统软件和硬件之间的通信，为各种硬件提供设备驱动服务，例如：为显示器提供显示驱动程序、为摄像头提供摄像头驱动程序、为遥控器提供按键驱动程序、为WIFI模块提供WiFi驱动程序、为音频输出接口提供音频驱动程序、为电源管理(PM)模块提供电源管理驱动等。
用户接口265，接收各种用户交互。具体的，用于将用户的输入信号发送给控制器250，或者，将从控制器250的输出信号传送给用户。示例性的，遥控器100A可将用户输入的诸如电源开关信号、频道选择信号、音量调节信号等输入信号发送至用户接口265，再由用户接口265转送至控制器250；或者， 遥控器100A可接收经控制器250处理从用户接口265输出的音频、视频或数据等输出信号，并且显示接收的输出信号或将接收的输出信号输出为音频或振动形式。
在一些实施例中，用户可在显示器275上显示的图形用户界面(GUI)输入用户命令，则用户接口265通过GUI接收用户输入命令。确切的说，用户接口265可接收用于控制选择器在GUI中的位置以选择不同的对象或项目的用户输入命令。
或者，用户可通过输入特定的声音或手势进行输入用户命令，则用户接口265通过传感器识别出声音或手势，来接收用户输入命令。
视频处理器270，用于接收外部的视频信号，根据输入信号的标准编解码协议，进行解压缩、解码、缩放、降噪、帧率转换、分辨率转换、图像合成等视频数据处理，可得到直接在显示器275上显示或播放的视频信号。
示例的，视频处理器270，包括解复用模块、视频解码模块、图像合成模块、帧率转换模块、显示格式化模块等。
其中，解复用模块，用于对输入音视频数据流进行解复用处理，如输入MPEG-2流(基于数字存储媒体运动图像和语音的压缩标准),则解复用模块将其进行解复用成视频信号和音频信号等。
视频解码模块，用于对解复用后的视频信号进行处理，包括解码和缩放处理等。
图像合成模块，如图像合成器，其用于将图形生成器根据用户输入或自身生成的GUI信号，与缩放处理后视频图像进行叠加混合处理，以生成可供显示的图像信号。
帧率转换模块，用于对输入视频的帧率进行转换，如将输入的60Hz视频的帧率转换为120Hz或240Hz的帧率，通常的格式采用如插帧方式实现。
显示格式化模块，用于将帧率转换模块输出的信号，改变为符合诸如显示器显示格式的信号，如将帧率转换模块输出的信号进行格式转换以输出RGB数据信号。
显示器275，用于接收源自视频处理器270输出的图像信号，进行显示视频、图像以及菜单操控界面。例如，显示器可以显示来自调谐解调器210接收的广播信号中的视频，也可以显示来自通信器220或外部装置接口240输入的视频，还可以显示在存储器260中存储的图像。显示器275，同时显示显示设备200中产生且用于控制显示设备200的用户操控界面UI。
以及，显示器275可以包括用于呈现画面的显示屏组件以及驱动图像显示的驱动组件。或者，倘若显示器275为一种投影显示器，还可以包括一种投影装置和投影屏幕。
音频处理器280，用于接收外部的音频信号，根据输入信号的标准编解码协议，进行解压缩和解码，以及降噪、数模转换、和放大处理等音频数据处理，得到可以在扬声器286中播放的音频信号。
示例性的，音频处理器280可以支持各种音频格式。例如MPEG-2、MPEG-4、高级音频编码(AAC)、高效AAC(HE-AAC)等格式。
音频输出接口285，用于接收源自音频处理器280输出的音频信号。例如，音频输出接口可以输出经由调谐解调器210接收的广播信号中的音频，也可以输出经由通信器220或外部装置接口240输入的音频，还可以输出在存储器260中存储的音频。音频输出接口285可包括扬声器286，或输出至外接设备的发 生装置的外接音响输出端子287，如耳机输出端子。
在其他一些示例性实施例中，视频处理器270可以包括一个或多个芯片组成。音频处理器280，也可以包括一个或多个芯片组成。
以及，在其他一些示例性实施例中，视频处理器270和音频处理器280，可以为单独的芯片，也可以与控制器250一起集成在一个或多个芯片中。
供电电源290，用于在控制器250的控制下，将外部电源输入的电力为显示设备200提供电源供电支持。供电电源290可以是安装在显示设备200内部的内置电源电路，也可以是安装在显示设备200外部的电源。
智能电视根据其使用状态可被划分为两种模式，分别为家庭模式和商场模式。
家庭模式是用户从卖场中购买回家，正常观看电视节目而设定的一种模式。
商场模式是根据卖场环境设定的一种模式，在商场模式下，显示设备的部分参数，如亮度参数、对比度参数、色度参数、锐度参数等采用厂家预先在显示设备上存储的商场模式参数，在使用商场模式参数的情况下，显示设备可呈现出其所能达到的，让大多数用户满意的最好的显示状态。基于此，在商场销售的应用场景下，销售人员通常将显示设备配置为商场模式，以将显示设备最好的显示状态或者其显示特性呈现给用户。
进一步，随着科技的发展，显示设备的机型越来越多，不同机型的显示设备具有不同的特性，比如一类机型的显示设备具有良好的色彩表现，另一类机型的显示设备则具有良好的画质表现。基于此，在商场销售的应用场景下，可为不同机型的显示设备配置不同的演示视频，比如为具有良好色彩表现的显示设备配置画面色彩较为丰富的演示视频，为具有良好画质表现的显示设备配置 画面亮度较高的演示视频，这能将显示设备的特性以最好的显示状态呈现给用户。
目前，在显示设备出厂前，由厂家根据每台显示设备的机型为其单独配置能够展示显示设备特性的演示视频，并且，为了避免一些原因比如工厂复位或用户复位导致的演示视频被清除，在显示设备上专门创建一块分区用来永久地存储演示视频。常用的演示视频为全高清视频或者4K视频，大小介于500MB～1000MB之间，然而用户在日常应用中几乎用不到商场模式，如此也就导致显示设备存储空间的浪费。
据此，本申请提供一种媒体文件的播放方法，应用该方法，可以实现显示设备在被配置为商场模式的情况下，能够从外部设备比如U盘上获取到能够展示显示设备特性的演示视频，从而节省显示设备的存储空间。
具体的，使用用来计算和校验文件报文摘要的工具程序md5sum，通过报文摘要算法Message-Digest Algorithm 5。对演示视频文件信息逐位进行计算，产生一个二进制长度为128位的md5码，并将智能电视机型对应的md5码预制到机型对应的系统ROM中。在智能电视系统启动，进入商场模式后，智能适配播放插入的外部设备中存储的与系统预制的md5码对应的演示视频。
以下对本申请提供的方法进行详细说明：
为了便于理解，以下首先对为应用本申请提供的方法，对显示设备做出的改进进行说明：
确定被配置为展示显示设备特性的媒体文件的特征码，一些实施例中，特征码以MD5值来表示。将上述特征码保存在文件中，并对文件进行命名，比如命名为MD5文件。将显示设备上原有的用于永久存储演示视频的分区删除，并 相应扩充显示设备存储器上的用户空间，将已命名好的保存有特征码的文件存储在系统ROM中，防止被篡改。
一些实施例中，上述改进可以发生在显示设备出厂之前。
一些实施例中，上述改进可以发生在显示设备出厂之后。比如通过系统升级的方式对显示设备做出上述改进。
当然，为应用本申请提供的方法，还将被配置为展示显示设备特征的媒体文件存储与外部设备比如U盘上。这能够实现显示设备从外部设备获取到能够展示显示设备特性的演示视频。
一些实施例中，为不同机型的显示设备配置不同的外部设备，即，每种机型对应一个外部设备，该外部设备中至少存储有被配置为展示该机型的显示设备特性的媒体文件。
一些实施例中，为不同机型的显示设备配置一个外部设备，即，外部设备中存储有多个媒体文件，该多个媒体文件分别被配置为展示不同机型的显示设备特性。
一些实施例中，外部设备上还存储有全部或部分媒体文件对应的特征码。
以下通过具体的实施例对本申请提供的方法进行详细说明：
实施例1:
参见图2，为本申请一示例性实施例提供的一种媒体文件的播放方法的实施例流程图，该流程包括以下步骤：
步骤S21、响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与特征码相匹配的目标媒体文件。
这里的第一模式即为上述商场模式。
一些实施例中，显示设备启动第一模式时，则自动进行视频播放。基于此，在本步骤S21中，控制器响应于用于指示启动第一模式的输入指令，则自动基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与特征码相匹配的目标媒体文件。这里所说的相匹配是指：目标媒体文件的特征码与显示设备的存储器内预先存储的特征码相同。
示例性的，用户可以通过按压控制装置上的用于启动第一模式的设置按键向显示设备发送用于指示启动第一模式的输入指令。
示例性的，用户可以通过控制装置控制显示设备显示如图3所示例的模式配置界面300。然后，若模式配置界面300上的按钮310处于关闭状态，则用户通过点击按钮310向显示设备发送用于指示启动第一模式的输入指令。
一些实施例中，在外部设备中存储有全部或部分媒体文件对应的特征码的情况下，则可以先基于存储器内预先存储的特征码从外部设备中查找相同的特征码。当查找到相同的特征码时，则获取该相同的特征码对应的媒体文件作为上述目标媒体文件。
当未查找相同的特征码时，则计算外部设备中媒体文件的特征码，将计算出的特征码与存储器内预先存储的特征码进行比较。如果一致，则将该外部设备中的媒体文件确定为上述目标媒体文件。通过该种处理，可以实现提供一种容错机制，尤其是在为不同机型的显示设备配置不同的外部设备的情况下，可以有效降低在外部设备连接错误的情况下无法获取到目标媒体文件的概率。
步骤S22、播放目标媒体文件。
如图4所示，为在显示设备的显示器上播放目标媒体文件的图像内容400 的一种示例。
至此，完成实施例1的描述。
由上述实施例1可见，通过将被配置为展示显示设备特性的媒体文件存储与外部设备上，而在显示设备的存储器中存储该媒体文件的特征码，在显示设备开启商场模式时，显示设备从外部设备上查找能够展示显示设备特性的演示视频，从而节省显示设备的存储空间。
实施例2：
参见图5，为本申请一示例性实施例提供的另一种媒体文件的播放方法的实施例流程图，该流程包括以下步骤：
步骤S51、响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与特征码相匹配的目标媒体文件。
本步骤的详细描述可以参见上述步骤S21中的描述，这里不再详述。
步骤S52、将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件。
在本实施例中，在从外部设备中查找到目标媒体文件后，将外部设备中的目标媒体文件拷贝至存储器，一些实施例中，拷贝至存储器中的用户空间中，以便于后续应用。
在实际应用中，本实施例2通常发生在首次在显示设备上连接外部设备的情况下，即显示设备首次从外部设备中查找到被配置为展示显示设备特性的目标媒体文件后，将目标媒体文件拷贝至本设备的存储器中，以便于后续应用。
至此，完成实施例2的描述。
实施例3：
参见图6，为本申请一示例性实施例提供的又一种媒体文件的播放方法的实施例流程图，该流程在上述图5所示流程的基础上，包括以下步骤：
步骤S61、响应于用于指示启动第一模式的输入指令，确定存储器中是否存在被配置为展示显示设备特性的媒体文件，如果是，则执行步骤S62，如果否，则执行步骤S63。
步骤S62、播放存储器中的媒体文件。
步骤S63、基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与特征码相匹配的目标媒体文件。
步骤S64、播放目标媒体文件。
以下对步骤S61至S64进行统一说明：
基于上述实施例2，在本实施例中，控制器响应于用于指示启动第一模式的输入指令，则首先确定存储器中是否存在被配置为展示显示设备特性的媒体文件，如果是，则可以执行步骤S62，以播放存储器中的媒体文件。如果否，则执行步骤S63。至于步骤S63的详细描述，可以参见上述步骤S21中的描述，这里不再详述。
在实际应用中，本实施例3通常发生在非首次在显示设备上连接外部设备的情况下，即显示设备在非首次启动第一模式的情况下，首先从本设备的存储中查找被配置为展示显示设备特性的媒体文件，在未查找到的情况下，再进一步从外部设备中查找被配置为展示显示设备特性的媒体文件，以降低对外部设 备的依赖。
至此，完成实施例3的相关描述。
由上述实施例3可见，通过在确定存储器中存在被配置为展示显示设备特性的媒体文件时，直接播放存储器中的媒体文件，可以降低对外部设备的依赖，提高在第一模式下进行视频播放的灵活性。
实施例4：
参见图7，为本申请一示例性实施例提供的再一种媒体文件的播放方法的实施例流程图，该流程在上述图5所示流程的基础上，包括以下步骤：
步骤S71、响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与特征码相匹配的目标媒体文件。
本步骤的详细描述可以参见上述步骤S21中的描述，这里不再详述。
步骤S72、将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件。
本步骤的详细描述可以参见上述步骤S52中的描述，这里不再详述。
步骤S73、响应于用于指示复位的输入指令，删除存储器中的目标媒体文件。
示例性的，用户可以通过控制装置控制显示设备显示如图8所示例的设置界面800。基于图8，用户可通过控制装置触发设置界面800上的“复位”按钮，当“复位”按钮被触发时，显示设备则接收到用户输入的指示复位的控制指令。
控制器响应于该用于指示复位的输入指令，删除存储器中的目标媒体文件。
至此，完成实施例4的描述。
由上述实施例4可见，通过在响应于用于指示复位的输入指令时，删除存储器中的目标媒体文件，可以节省显示设备的用户空间。
上述实施例中，通过将被配置为展示显示设备特性的媒体文件存储于外部设备上，而在显示设备的存储器中存储该媒体文件的特征码，在显示设备开启商场模式时，基于该特征码，显示设备从外部设备上查找能够展示显示设备特性的演示视频，从而节省显示设备的存储空间；
通过从外部设备中查找到被配置为展示显示设备特性的目标媒体文件后，将目标媒体文件拷贝至本设备的存储器中，进一步通过在确定存储器中存在被配置为展示显示设备特性的媒体文件时，直接播放存储器中的媒体文件。这样可以降低对外部设备的依赖，便于外部设备移出后仍然能够继续播放该目标媒体文件，提高在商场模式下进行视频播放的灵活性；
通过在响应于用于指示复位的输入指令时，删除存储器中的目标媒体文件，可以节省显示设备的用户空间。
出于说明和描述的目的，提供了前述实施例，而非旨在穷举或限制本申请。具体实施例的各个元件或特征通常不限于该具体实施例，而是在适用情况下即使未具体示出或描述也可在所选实施例中使用或互换。同样也可以进行许多形式变型，这种变型不被认为是脱离本申请所附的权利要求的范围，而且所有这样的修改被涵盖在本申请所附的权利要求的范围内。

Claims (11)

  1. 一种显示设备，其特征在于，包括：
    显示器；
    用户接口；
    外部装置接口，用于连接提供媒体文件的外部设备；其中，外部设备还提供媒体文件对应的特征码；
    存储器；
    控制器，用于执行：
    响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
  2. 根据权利要求1所述的显示设备，其特征在于，所述特征码以MD5值来表示。
  3. 一种显示设备，其特征在于，包括：
    显示器；
    用户接口；
    外部装置接口，用于连接提供媒体文件的外部设备；
    存储器；
    控制器，用于执行：
    响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
    以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件。
  4. 根据权利要求3所述的显示设备，其特征在于，所述特征码具体存储在只读存储器中。
  5. 一种显示设备，其特征在于，包括：
    显示器；
    用户接口；
    外部装置接口，用于连接提供媒体文件的外部设备；
    存储器；
    控制器，用于执行：
    响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
    以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件；
    响应于用于指示复位的输入指令，删除所述存储器中的目标媒体文件。
  6. 根据权利要求5所述的显示设备，其特征在于，所述目标媒体文件具体拷贝至用户存储空间。
  7. 一种显示设备，其特征在于，包括：
    显示器；
    用户接口；
    外部装置接口，用于连接提供媒体文件的外部设备；
    存储器；
    控制器，用于执行：
    响应于用于指示启动第一模式的输入指令，在确定存储器中不存在被配置为展示显示设备特性的媒体文件时，基于存储器内预先存储的所述媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
  8. 一种媒体文件的播放方法，其特征在于，所述方法包括：
    响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
  9. 一种媒体文件的播放方法，其特征在于，所述方法包括：
    响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
    以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件。
  10. 一种媒体文件的播放方法，其特征在于，所述方法包括：
    响应于用于指示启动第一模式的输入指令，基于存储器内预先存储的被配置为展示显示设备特性的媒体文件对应的特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；
    以及将外部设备中的目标媒体文件拷贝至存储器，并播放目标媒体文件；
    响应于用于指示复位的输入指令，删除所述存储器中的目标媒体文件。
  11. 一种媒体文件的播放方法，其特征在于，所述方法包括：
    响应于用于指示启动第一模式的输入指令，在确定存储器中不存在被配置为展示显示设备特性的媒体文件时，基于存储器内预先存储的所述媒体文件的 特征码，从外部设备中查找与所述特征码相匹配的目标媒体文件；以及播放目标媒体文件。
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