CN111601153A - Media file playing method and display device - Google Patents
Media file playing method and display device Download PDFInfo
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- CN111601153A CN111601153A CN202010444291.9A CN202010444291A CN111601153A CN 111601153 A CN111601153 A CN 111601153A CN 202010444291 A CN202010444291 A CN 202010444291A CN 111601153 A CN111601153 A CN 111601153A
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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
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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
- H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
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- User Interface Of Digital Computer (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The application discloses a media file playing method and display equipment, which are used for saving the storage space of the display equipment. The method comprises the following steps: in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from an external device based on the feature code of a media file which is stored in a memory in advance and configured to show the characteristics of a display device; and playing the target media file.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a method for playing a media file and a display device.
Background
In the related art, in order to meet a requirement of presenting a best display state of a display device to a user in a shop mode, a demonstration video matching with a model of the display device is configured for the display device, and the demonstration video matching with the model of the display device is permanently stored in the display device when the display device leaves a factory.
However, the user hardly uses the mall mode in daily applications, which results in a waste of storage space of the display device.
Disclosure of Invention
The embodiment of the application provides a media file playing method and display equipment, which are used for saving the storage space of the display equipment.
In a first aspect, there is provided a display device comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file; wherein, the external device also provides the feature code corresponding to the media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from an external device based on the feature code of a media file which is stored in a memory in advance and configured to show the characteristics of a display device; and playing the target media file.
In a second aspect, there is provided a display device comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
and copying the target media file in the external equipment to the memory and playing the target media file.
In a third aspect, there is provided a display device comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
copying a target media file in the external equipment to a memory, and playing the target media file;
deleting the target media file in the memory in response to an input instruction indicating a reset.
In a fourth aspect, there is provided a display device comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, when determining that no media file configured to show the characteristics of the display device exists in the memory, searching a target media file matched with a feature code from the external device based on the feature code corresponding to the media file stored in the memory in advance; and playing the target media file.
In a fifth aspect, a method for playing a media file is provided, the method comprising:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from an external device based on the feature code of a media file which is stored in a memory in advance and configured to show the characteristics of a display device; and playing the target media file.
In a sixth aspect, a method for playing a media file is provided, the method comprising:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
and copying the target media file in the external equipment to the memory and playing the target media file.
In a seventh aspect, a method for playing a media file is provided, where the method includes:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
copying a target media file in the external equipment to a memory, and playing the target media file;
deleting the target media file in the memory in response to an input instruction indicating a reset.
In an eighth aspect, a method for playing a media file is provided, where the method includes:
in response to an input instruction for indicating the starting of the first mode, when determining that no media file configured to show the characteristics of the display device exists in the memory, searching a target media file matched with a feature code of the media file stored in the memory in advance from the external device based on the feature code; and playing the target media file.
In the above embodiment, the media file configured to show the characteristics of the display device is stored in the external device, and the feature code of the media file is stored in the memory of the display device, so that when the display device starts the shopping mall mode, based on the feature code, the display device searches the demonstration video capable of showing the characteristics of the display device from the external device, thereby saving the storage space of the display device;
after the target media file configured to show the characteristics of the display device is found from the external device, the target media file is copied to the memory of the device, and further, when the media file configured to show the characteristics of the display device exists in the memory, the media file in the memory is directly played. Therefore, the dependence on external equipment can be reduced, the target media file can be continuously played after the external equipment is moved out, and the flexibility of video playing in a shopping mall mode is improved;
by deleting the target media file in the memory in response to the input instruction for instructing the reset, the user storage space of the display apparatus can be saved.
Drawings
Fig. 1A schematically illustrates an operation scenario between the display device 200 and the control 100;
fig. 1B is a block diagram schematically illustrating a configuration of the control apparatus 100 in fig. 1A;
fig. 1C is a block diagram schematically illustrating a configuration of the display device 200 in fig. 1A;
a block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 1D.
Fig. 2 is a flowchart of an embodiment of a method for playing a media file according to an exemplary embodiment of the present application;
FIG. 3 is a schematic diagram of a mode configuration interface 300;
FIG. 4 is an example of playing image content 400 of a target media file on a display of a display device;
FIG. 5 is a flowchart of an embodiment of another method for playing a media file according to an exemplary embodiment of the present application;
FIG. 6 is a flowchart illustrating an embodiment of a method for playing a media file according to an exemplary embodiment of the present application;
FIG. 7 is a flowchart illustrating an embodiment of a method for playing a media file according to an exemplary embodiment of the present application;
fig. 8 is a schematic diagram of a setup interface 800.
Detailed Description
To make the objects, 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 clearly and completely described below with reference to the drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive effort, shall fall within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure.
The terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.
Fig. 1A is a schematic diagram illustrating an operation scenario between the display device 200 and the control apparatus 100. As shown in fig. 1A, the control apparatus 100 and the display device 200 may communicate with each other in a wired or wireless manner.
Among them, the control apparatus 100 is configured to control the display device 200, which may receive an operation instruction input by a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an intermediary for interaction between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.
The control device 100 may be a remote controller 100A, which includes infrared protocol communication or bluetooth protocol communication, and other short-distance communication methods, etc. to control the display apparatus 200 in a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.
The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, and the like. For example, the display device 200 is controlled using an application program running on the smart device. The application program may provide various controls to a user through an intuitive User Interface (UI) on a screen associated with the smart device through configuration.
For example, the mobile terminal 100B may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100B may be caused to establish a control instruction protocol with the display device 200 to implement the functions of the physical keys as 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 may also be transmitted to the display device 200, so as to implement a synchronous display function.
The display apparatus 200 may be implemented as a television, and may provide an intelligent network television function of a broadcast receiving television function as well as a computer support function. Examples of the display device include a digital television, a web television, a smart television, an Internet Protocol Television (IPTV), and the like.
The display device 200 may be a liquid crystal display, an organic light emitting display, a projection display device. The specific display device type, size, resolution, etc. are not limited.
The display apparatus 200 also performs data communication with the server 300 through various communication means. Here, the display apparatus 200 may be allowed to be communicatively connected 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 apparatus 200. By way of example, the display device 200 may 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 servers 300 may be a group or groups of servers, and may be one or more types of servers. Other web service contents such as a video on demand and an advertisement service are provided through the server 300.
Fig. 1B is a block diagram illustrating the configuration 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 of the control device 100, as well as the internal components of the communication cooperation, external and internal data processing functions.
Illustratively, when an interaction of a user pressing a key disposed on the remote controller 100A or an interaction of touching a touch panel disposed on the remote controller 100A is detected, the controller 110 may control to generate a signal corresponding to the detected interaction and transmit the signal to the display device 200.
And a memory 120 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 120 may store various control signal commands input by a user.
The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the control apparatus 100 transmits a control signal (e.g., a touch signal or a button signal) to the display device 200 via the communicator 130, and the control apparatus 100 may receive the signal transmitted 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: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.
The user input interface 140 may include at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like, so that a user can input a user instruction regarding controlling the display apparatus 200 to the control apparatus 100 through voice, touch, gesture, press, and the like.
The output interface 150 outputs a user instruction received by the user input interface 140 to the display apparatus 200, or outputs an image or voice signal received by the display apparatus 200. Here, the output interface 150 may include an LED interface 151, a vibration interface 152 generating vibration, a sound output interface 153 outputting sound, a display 154 outputting an image, and the like. For example, the remote controller 100A may receive an output signal such as audio, video, or data from the output interface 150, and display the output signal in the form of an image on the display 154, in the form of audio on the sound output interface 153, or in the form of vibration on the vibration interface 152.
And a power supply 160 for providing operation power support for each element of the control device 100 under the control of the controller 110. In the form of a battery and associated control circuitry.
A hardware configuration block diagram of the display device 200 is exemplarily illustrated in fig. 1C. As shown in fig. 1C, the display apparatus 200 may further include a tuner 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, a display 275, an audio processor 280, an audio input interface 285, and a power supply 290.
The tuner demodulator 210 receives the broadcast television signal in a wired or wireless manner, may perform modulation and demodulation processing such as amplification, mixing, and resonance, and is configured to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., EPG data).
The tuner demodulator 210 is responsive to the user selected frequency of the television channel and the television signal carried by the frequency, as selected by the user and controlled by the controller 250.
The tuner demodulator 210 can receive a television signal in various ways according to the broadcasting system of the television signal, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; and according to different modulation types, a digital modulation mode or an analog modulation mode can be adopted; and can demodulate the analog signal and the digital signal according to the different kinds of the received television signals.
In other exemplary embodiments, the tuning 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 television signal after modulation and demodulation, and inputs the television signal into the display apparatus 200 through the external device interface 240.
The communicator 220 is a component for communicating with an external device or an external server according to various communication protocol types. For example, the display apparatus 200 may transmit content data to an external apparatus connected via the communicator 220, or browse and download content data from an external apparatus connected via the communicator 220. The communicator 220 may include a network communication protocol module or a near field communication protocol module, such as a WIFI module 221, a bluetooth communication protocol module 222, and a wired ethernet communication protocol module 223, so that the communicator 220 may receive a control signal of the control device 100 according to the control of the controller 250 and implement the control signal as a WIFI signal, a bluetooth signal, a radio frequency signal, and the like.
The detector 230 is a component of the display apparatus 200 for collecting signals of an external environment or interaction with the outside. The detector 230 may include an image collector 231, such as a camera, a video camera, etc., which may be used to collect external environment scenes to adaptively change the display parameters of the display device 200; and the function of acquiring the attribute of the user or interacting gestures with the user so as to realize the interaction between the display equipment and the user. A light receiver 232 may also be included to collect ambient light intensity to adapt to changes in display parameters of the display device 200, etc.
In some other exemplary embodiments, the detector 230 may further include a temperature sensor, such as by sensing an ambient temperature, and the display device 200 may adaptively adjust a display color temperature of the image. For example, when the temperature is higher, the display apparatus 200 may be adjusted to display a color temperature of an image that is cooler; when the temperature is lower, the display device 200 may be adjusted to display a warmer color temperature of the image.
In some other exemplary embodiments, the detector 230, which may further include a sound collector, such as a microphone, may be configured to receive a sound of a user, such as a voice signal of a control instruction of the user to control the display device 200; alternatively, ambient sounds may be collected that identify the type of ambient scene, enabling the display device 200 to adapt to ambient noise.
The external device interface 240 is a component for providing the controller 210 to control data transmission between the display apparatus 200 and an external apparatus. The external device interface 240 may be connected to an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.
The external device interface 240 may include: a High Definition Multimedia Interface (HDMI) terminal 241, a Composite Video Blanking Sync (CVBS) terminal 242, an analog or digital Component terminal 243, a Universal Serial Bus (USB) terminal 244, a Component terminal (not shown), a red, green, blue (RGB) terminal (not shown), and the like.
The controller 250 controls the operation of the display device 200 and responds to the operation of the user 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 CPU processor 254, a communication interface 255, and a communication bus 256. The RAM251, the ROM252, the graphic processor 253, and the CPU processor 254 are connected to each other through a communication bus 256 through a communication interface 255.
The ROM252 stores various system boot instructions. When the display apparatus 200 starts power-on upon receiving the power-on signal, the CPU processor 254 executes a system boot instruction in the ROM252, copies the operating system stored in the memory 260 to the RAM251, and starts running the boot operating system. After the start of the operating system is completed, the CPU processor 254 copies the various application programs in the memory 260 to the RAM251 and then starts running and starting the various application programs.
A graphic processor 253 for generating screen images of various graphic objects such as icons, images, and operation menus. The graphic processor 253 may include an operator for performing an operation by receiving various interactive instructions input by a user, and further displaying various objects according to display attributes; and a renderer for generating various objects based on the operator and displaying the rendered result on the display 275.
A CPU processor 254 for executing operating system and application program instructions stored in memory 260. And according to the received user input instruction, processing of various application programs, data and contents is executed so as to finally display and play various audio-video contents.
In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include one main processor and a plurality of or one sub-processor. A main processor for performing some initialization operations of the display apparatus 200 in the display apparatus preload mode and/or operations of displaying a screen in the normal mode. A plurality of or one sub-processor for performing an operation in a state of a standby mode or the like of the display apparatus.
The communication interface 255 may include a first interface to an nth interface. These interfaces may be network interfaces that are connected to external devices via a network.
The controller 250 may control the overall operation of the display apparatus 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.
Where the object may be any one of the selectable objects, such as a hyperlink or an icon. The operation related to the selected object is, for example, an operation of displaying a link to a hyperlink page, document, image, or the like, or an operation of executing a program corresponding to an icon. The user input command for selecting the GUI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch panel, etc.) connected to the display apparatus 200 or a voice command corresponding to a user uttering voice.
A memory 260 for storing various types of data, software programs, or applications for driving and controlling the operation of the display device 200. The memory 260 may include volatile and/or nonvolatile memory. And the term "memory" includes the memory 260, the RAM251 and the ROM252 of the controller 250, or a memory card in the display device 200.
In some embodiments, the memory 260 is specifically used for storing an operating program for driving the controller 250 of the display device 200; storing various application programs built in the display apparatus 200 and downloaded by a user from an external apparatus; data such as visual effect images for configuring various GUIs provided by the display 275, various objects related to the GUIs, and selectors for selecting GUI objects are stored.
In some embodiments, the memory 260 is specifically configured to store drivers and related data for the tuner demodulator 210, the communicator 220, the detector 230, the external device interface 240, the video processor 270, the display 275, the audio processor 280, and the like, external data (e.g., audio-visual data) received from the external device interface, or user data (e.g., key information, voice information, touch information, and the like) received from the user interface.
In some embodiments, memory 260 specifically stores software and/or programs representing an Operating System (OS), which may include, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. Illustratively, the kernel may control or manage system resources, as well as functions implemented by other programs (e.g., the middleware, APIs, or applications); at the same time, the kernel may provide an interface to allow middleware, APIs, or applications to access the controller to enable control or management of system resources.
A block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 1D. The operating system architecture comprises an application layer, a middleware layer and a kernel layer from top to bottom.
The application layer, the application programs built in the system and the non-system-level application programs belong to the application layer and are responsible for direct interaction with users. The application layer may include a plurality of applications such as NETFLIX applications, setup applications, media center applications, and the like. These applications may be implemented as Web applications that execute based on a WebKit engine, and in particular may be developed and executed based on HTML, Cascading Style Sheets (CSS), and JavaScript.
Here, HTML, which is called HyperText Markup Language (HyperText Markup Language), is a standard Markup Language for creating web pages, and describes the web pages by Markup tags, where the HTML tags are used to describe characters, graphics, animation, sound, tables, links, etc., and a browser reads an HTML document, interprets the content of the tags in the document, and displays the content in the form of web pages.
CSS, known as Cascading Style Sheets (Cascading Style Sheets), is a computer language used to represent the Style of HTML documents, and may be used to define Style structures, such as fonts, colors, locations, etc. The CSS style can be directly stored in the HTML webpage or a separate style file, so that the style in the webpage can be controlled.
JavaScript, a language applied to Web page programming, can be inserted into an HTML page and interpreted and executed by a browser. The interaction logic of the Web application is realized by JavaScript. The JavaScript can package a JavaScript extension interface through a browser, realize the communication with the kernel layer,
the middleware layer may provide some standardized interfaces to support the operation of various environments and systems. For example, the middleware layer may be implemented as multimedia and hypermedia information coding experts group (MHEG) middleware related to data broadcasting, DLNA middleware which is middleware related to communication with an external device, middleware which provides a browser environment in which each application program in the display device operates, and the like.
The kernel layer provides core system services, such as: file management, memory management, process management, network management, system security authority management and the like. The kernel layer may 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: provide display driver for the display, provide camera driver for the camera, provide button driver for the remote controller, provide wiFi driver for the WIFI module, provide audio driver for audio output interface, provide power management drive for Power Management (PM) module etc..
A user interface 265 receives various user interactions. Specifically, it is used to transmit an input signal of a user to the controller 250 or transmit an output signal from the controller 250 to the user. For example, the remote controller 100A may transmit an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by the user to the user interface 265, and then the input signal is transferred to the controller 250 through the user interface 265; alternatively, the remote controller 100A may receive an output signal such as audio, video, or data output from the user interface 265 via the controller 250, and display the received output signal or output the received output signal in audio or vibration form.
In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user interface 265 receives the user input commands through the GUI. Specifically, the user interface 265 may receive user input commands for controlling the position of a 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 receives the user input command by recognizing the sound or gesture through the sensor.
The video processor 270 is configured to receive an external video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the display 275.
Illustratively, the video processor 270 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.
The demultiplexing module is configured to demultiplex an input audio/video data stream, where, for example, an input MPEG-2 stream (based on a compression standard of a digital storage media moving image and voice), the demultiplexing module demultiplexes the input audio/video data stream into a video signal and an audio signal.
And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.
And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.
The frame rate conversion module is configured to convert a frame rate of an input video, for example, convert a frame rate of an input 60Hz video into a frame rate of 120Hz or 240Hz, where a common format is implemented by using, for example, an interpolation frame method.
And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.
And a display 275 for receiving the image signal from the output of the video processor 270 and displaying video, images and menu manipulation interfaces. For example, the display may display video from a broadcast signal received by the tuner demodulator 210, may display video input from the communicator 220 or the external device interface 240, and may display an image stored in the memory 260. The display 275, while displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.
And, the display 275 may include a display screen assembly for presenting a picture and a driving assembly for driving the display of an image. Alternatively, a projection device and projection screen may be included, provided display 275 is a projection display.
The audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played by the speaker 286.
Illustratively, audio processor 280 may support various audio formats. Such as MPEG-2, MPEG-4, Advanced Audio Coding (AAC), high efficiency AAC (HE-AAC), and the like.
In other exemplary embodiments, video processor 270 may comprise one or more chips. Audio processor 280 may also comprise one or more chips.
And, in 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.
And a power supply 290 for supplying power supply support to the display apparatus 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may be a built-in power supply circuit installed inside the display apparatus 200 or may be a power supply installed outside the display apparatus 200.
The smart television can be divided into two modes according to the using state of the smart television, namely a home mode and a market mode.
The home mode is a mode set by a user to normally watch a tv program by buying home from a store.
The market mode is a mode set according to the market environment, in the market mode, partial parameters of the display equipment, such as a brightness parameter, a contrast parameter, a chromaticity parameter, a sharpness parameter and the like, adopt market mode parameters stored in the display equipment by a manufacturer in advance, and under the condition of using the market mode parameters, the display equipment can present the best display state which can be achieved by the display equipment and is satisfied by most users. Based on this, in an application scenario of shopping mall sales, a salesperson generally configures the display device in a shopping mall mode to present the best display state of the display device or its display characteristics to the user.
Further, with the development of technology, the models of display devices are more and more, and the display devices of different models have different characteristics, for example, the display device of one model has good color performance, and the display device of another model has good image quality performance. Based on this, in an application scene of market sales, different demonstration videos can be configured for display devices of different models, for example, a demonstration video with rich picture colors is configured for a display device with good color expression, and a demonstration video with high picture brightness is configured for a display device with good image quality expression, so that characteristics of the display device can be presented to a user in a best display state.
Currently, before the display device leaves the factory, a manufacturer individually configures a demonstration video capable of showing the characteristics of the display device for each display device according to the model of the display device, and in order to prevent the demonstration video from being cleared due to some reasons such as factory reset or user reset, a partition is specially created on the display device for permanently storing the demonstration video. The commonly used demonstration video is full high-definition video or 4K video, the size is between 500MB and 1000MB, however, the user can hardly use the market mode in daily application, which results in waste of storage space of the display device.
Therefore, the application provides a method for playing a media file, and by applying the method, the display device can acquire a demonstration video capable of showing the characteristics of the display device from an external device such as a U disk under the condition that the display device is configured to be in a shopping mall mode, so that the storage space of the display device is saved. The method provided by the present application is explained in detail below:
for ease of understanding, the following first describes the improvements made to the display device for applying the methods provided herein:
a feature code is determined for a media file configured to exhibit characteristics of a display device, optionally expressed in MD5 values. The above feature codes are saved in files and the files are named, for example, as MD5 files. The original partition for permanently storing the demonstration video on the display device is deleted, the user storage space on the memory of the display device is correspondingly expanded, and the named file with the feature code is stored in the system ROM to prevent the file from being tampered.
Optionally, the improvement may occur before the display device is shipped from a factory.
Alternatively, the above improvement may occur after the display device is shipped from a factory. Such as by way of a system upgrade.
Of course, for applying the method provided by the present application, media files configured to exhibit characteristics of the display device are also stored on an external device, such as a usb disk. This enables the display device to acquire a presentation video capable of exhibiting the characteristics of the display device from an external device.
Optionally, different external devices are configured for display devices of different models, that is, each model corresponds to one external device, and at least a media file configured to show characteristics of the display device of the model is stored in the external device.
Optionally, one external device is configured for the display devices of different models, that is, a plurality of media files are stored in the external device, and the media files are respectively configured to show the characteristics of the display devices of different models.
Optionally, the external device further stores a feature code corresponding to all or part of the media file.
The method provided by the present application is described in detail below by way of specific examples:
example 1:
referring to fig. 2, a flowchart of an embodiment of a method for playing a media file according to an exemplary embodiment of the present application is provided, where the flowchart includes the following steps:
step S21, in response to the input instruction for instructing to start the first mode, searching for a target media file matching the feature code from the external device based on the feature code of the media file configured to exhibit the characteristics of the display device, which is pre-stored in the memory.
The first mode is the mall mode.
In some embodiments, the video playback is automatically performed when the display device initiates the first mode. Based on this, in this step S21, the controller, in response to the input instruction for instructing to start the first mode, automatically searches the target media file matching the feature code from the external device based on the feature code of the media file configured to exhibit the characteristics of the display device, which is stored in advance in the memory. The term "matching" as used herein means: the feature code of the target media file is the same as the feature code pre-stored in the memory of the display device.
For example, the user may send an input instruction for instructing to start the first mode to the display device by pressing a setting key on the control apparatus for starting the first mode.
Illustratively, the user may control the display device to display the mode configuration interface 300 as illustrated in fig. 3 via the control means. Then, if the button 310 on the mode configuration interface 300 is in the off state, the user sends an input instruction for instructing to start the first mode to the display device by clicking the button 310.
In some embodiments, when the feature codes corresponding to all or part of the media files are stored in the external device, the same feature codes may be searched for from the external device based on the feature codes pre-stored in the memory. And when the same feature code is found, acquiring the media file corresponding to the same feature code as the target media file.
And when the same feature code is not searched, calculating the feature code of the media file in the external equipment, and comparing the calculated feature code with the feature code prestored in the memory. And if the media files are consistent, determining the media files in the external equipment as the target media files. Through the processing, the fault tolerance mechanism can be provided, and particularly, under the condition that different external devices are configured for display devices of different models, the probability that the target media file cannot be acquired under the condition that the external devices are connected wrongly can be effectively reduced.
And step S22, playing the target media file.
As shown in fig. 4, an example of playing image content 400 of a target media file on a display of a display device.
The description of embodiment 1 is completed so far.
As can be seen from the foregoing embodiment 1, by storing a media file configured to show characteristics of a display device on an external device and storing a feature code of the media file in a memory of the display device, when the display device starts a shopping mall mode, the display device searches for a presentation video capable of showing characteristics of the display device from the external device, thereby saving a storage space of the display device.
Example 2:
referring to fig. 5, a flowchart of an embodiment of another method for playing a media file according to an exemplary embodiment of the present application is provided, where the flowchart includes the following steps:
step S51, in response to the input instruction for instructing to start the first mode, searching for a target media file matching the feature code from the external device based on the feature code of the media file configured to exhibit the characteristics of the display device, which is pre-stored in the memory.
The detailed description of this step can be referred to the description of step S21 above, and will not be described in detail here.
And step S52, copying the target media file in the external device to the memory, and playing the target media file.
In this embodiment, after the target media file is found from the external device, the target media file in the external device is copied to the memory, and optionally, copied to the user storage space in the memory, so as to facilitate subsequent application.
In practical applications, this embodiment 2 generally occurs when the external device is connected to the display device for the first time, that is, after the display device finds the target media file configured to show the characteristics of the display device from the external device for the first time, the target media file is copied to the memory of the device, so as to facilitate subsequent applications.
The description of embodiment 2 is completed so far.
Example 3:
referring to fig. 6, a flowchart of an embodiment of a playing method for a media file according to an exemplary embodiment of the present application is provided, where the flowchart includes the following steps based on the flowchart shown in fig. 5:
step S61, in response to an input instruction for instructing to initiate the first mode, determines whether a media file configured to exhibit characteristics of the display device exists in the memory, and if so, performs step S62, and if not, performs step S63.
Step S62, playing the media file in the memory.
And step S63, searching a target media file matched with the feature code from the external equipment based on the feature code of the media file which is pre-stored in the memory and is configured to show the characteristics of the display equipment.
And step S64, playing the target media file.
The following collectively describes steps S61 to S64:
based on the above embodiment 2, in the present embodiment, in response to an input instruction for instructing to start the first mode, the controller first determines whether a media file configured to exhibit characteristics of the display device exists in the memory, and if so, may perform step S62 to play the media file in the memory. If not, step S63 is performed. As for the detailed description of step S63, refer to the description in step S21 above, and will not be described in detail here.
In practical applications, this embodiment 3 generally occurs when an external device is not connected to a display device for the first time, that is, when the display device is not in the first mode, the media file configured to display the characteristics of the display device is first searched from the storage of the device, and when the media file is not searched, 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.
The description about embodiment 3 is completed so far.
As can be seen from the foregoing embodiment 3, when it is determined that the media file configured to show the characteristics of the display device exists in the memory, the media file in the memory is directly played, so that dependence on the external device can be reduced, the target media file can be continuously played even after the external device is removed, and flexibility of video playing in the first mode is improved.
Example 4:
referring to fig. 7, a flowchart of an embodiment of a playing method for a media file according to an exemplary embodiment of the present application is provided, where the flowchart is based on the flowchart shown in fig. 5, and includes the following steps:
step S71, in response to the input instruction for instructing to start the first mode, searching for a target media file matching the feature code from the external device based on the feature code of the media file configured to exhibit the characteristics of the display device, which is pre-stored in the memory.
The detailed description of this step can be referred to the description of step S21 above, and will not be described in detail here.
And step S72, copying the target media file in the external device to the memory, and playing the target media file.
The detailed description of this step can be referred to the description of step S52 above, and will not be described in detail here.
Step S73, in response to the input instruction for instructing reset, deletes the target media file in the memory.
Illustratively, the user may control the display device to display the setting interface 800 as illustrated in fig. 8 through the control means. Based on fig. 8, the user may trigger a "reset" button on the setting interface 800 through the control device, and when the "reset" button is triggered, the display device receives a control instruction indicating reset input by the user.
The controller deletes the target media file in the memory in response to the input instruction indicating the reset.
The description of embodiment 4 is completed so far.
As can be seen from the above-described embodiment 4, by deleting the target media file in the memory in response to the input instruction for instructing reset, the user storage space of the display apparatus can be saved.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (11)
1. A display device, comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file; wherein, the external device also provides the feature code corresponding to the media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from an external device based on the feature code of a media file which is stored in a memory in advance and configured to show the characteristics of a display device; and playing the target media file.
2. The display device of claim 1, wherein the feature code is represented by an MD5 value.
3. A display device, comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
and copying the target media file in the external equipment to the memory and playing the target media file.
4. The display device according to claim 3, wherein the feature code is stored in particular in a read-only memory.
5. A display device, comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
copying a target media file in the external equipment to a memory, and playing the target media file;
deleting the target media file in the memory in response to an input instruction indicating a reset.
6. The display device of claim 5, wherein the target media file is specifically copied to user storage space.
7. A display device, comprising:
a display;
a user interface;
an external device interface for connecting an external apparatus providing a media file;
a memory;
a controller for performing:
in response to an input instruction for indicating the starting of the first mode, when determining that no media file configured to show the characteristics of the display device exists in the memory, searching a target media file matched with a feature code from the external device based on the feature code corresponding to the media file stored in the memory in advance; and playing the target media file.
8. A method for playing a media file, the method comprising:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from an external device based on the feature code of a media file which is stored in a memory in advance and configured to show the characteristics of a display device; and playing the target media file.
9. A method for playing a media file, the method comprising:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
and copying the target media file in the external equipment to the memory and playing the target media file.
10. A method for playing a media file, the method comprising:
in response to an input instruction for indicating the starting of the first mode, searching a target media file matched with a feature code from external equipment based on the feature code corresponding to a media file which is stored in a memory in advance and is configured to show the characteristics of the display equipment;
copying a target media file in the external equipment to a memory, and playing the target media file;
deleting the target media file in the memory in response to an input instruction indicating a reset.
11. A method for playing a media file, the method comprising:
in response to an input instruction for indicating the starting of the first mode, when determining that no media file configured to show the characteristics of the display device exists in the memory, searching a target media file matched with a feature code of the media file stored in the memory in advance from the external device based on the feature code; and playing the target media file.
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| CN202010444291.9A CN111601153A (en) | 2020-05-22 | 2020-05-22 | Media file playing method and display device |
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| CN202010444291.9A CN111601153A (en) | 2020-05-22 | 2020-05-22 | Media file playing method and display device |
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