WO2021253575A1 - 一种音频输出设备的选择方法及显示设备 - Google Patents

一种音频输出设备的选择方法及显示设备 Download PDF

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Publication number
WO2021253575A1
WO2021253575A1 PCT/CN2020/104626 CN2020104626W WO2021253575A1 WO 2021253575 A1 WO2021253575 A1 WO 2021253575A1 CN 2020104626 W CN2020104626 W CN 2020104626W WO 2021253575 A1 WO2021253575 A1 WO 2021253575A1
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WO
WIPO (PCT)
Prior art keywords
audio output
list
display device
output device
display
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Application number
PCT/CN2020/104626
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English (en)
French (fr)
Inventor
李现旗
Original Assignee
海信视像科技股份有限公司
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Publication date
Application filed by 海信视像科技股份有限公司 filed Critical 海信视像科技股份有限公司
Publication of WO2021253575A1 publication Critical patent/WO2021253575A1/zh
Priority to US17/814,131 priority Critical patent/US11954401B2/en

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Classifications

    • 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
    • H04N21/439—Processing of audio elementary streams
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • 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
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4432—Powering on the client, e.g. bootstrap loading using setup parameters being stored locally or received from the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/485—End-user interface for client configuration
    • H04N21/4852—End-user interface for client configuration for modifying audio parameters, e.g. switching between mono and stereo

Definitions

  • This application relates to the field of software technology, and in particular to a method for selecting an audio output device and a display device.
  • the playing sequence used before the shutdown is often determined based on the device's power-on and reconnect speed.
  • the connection speed of the audio output device is limited by the performance of the audio output device and the overall performance of the TV. For example, the same audio output device from different manufacturers will have a great difference in the connection speed; The response time of an audio output device is not fixed. Therefore, the speed at which the audio output device reconnects after the smart TV is turned on is unpredictable, which leads to the problem of inconsistent sound output before and after the smart TV is turned on and off, resulting in a poor user experience.
  • this application provides a method for selecting an audio output device and a display device
  • this application provides a display device, including:
  • Speaker used to play the audio output from the current sounding device
  • the first device list includes the device identification of the current sounding device, and execute the shutdown operation of the display device;
  • the first audio output device When it is detected that the first audio output device is connected to the display device, if the device identifier of the first audio output device is the same as the device identifier of the current sounding device in the first device list, the first audio output device is An audio output device is used as the current sound output device.
  • this application provides a display device, including:
  • Speaker used to play the audio output from the current sounding device
  • the first device list includes the device identification of the audio output device connected to the display device, and the device identification of the current sounding device, and execute the shutdown operation of the display device;
  • the display device In response to the power-on instruction sent by the user, perform the power-on operation of the display device.
  • the device identification of the first audio output device is the same as that in the first device list.
  • the device identifiers of the current sound-producing devices are the same. If they are the same, the first audio output device is used as the current sound-producing device; if they are different, the device identifier of the first audio output device is added to the second device list In the device identification of the audio output device connected to the display device;
  • the first device list is updated so that the first device list is the same as the second device list, and the second device list is deleted.
  • this application provides a display device, including:
  • Speaker used to play the audio output from the current sound-producing device
  • the first device list including the device identification of the audio output device to which the display device is connected, and the device identification of the current sounding device, and perform the shutdown operation of the display device;
  • the display device In response to the power-on instruction sent by the user, perform the power-on operation of the display device.
  • the device identification of the first audio output device is the same as that in the first device list.
  • the device identifiers of the current sound-producing devices are the same. If they are the same, the first audio output device is used as the current sound-producing device; if they are different, the device identifier of the first audio output device is added to the second device list In the device identification of the audio output device connected to the display device;
  • the second audio output device is determined as the current output device according to the preset strategy from the audio output devices connected to the display device in the second device list.
  • Acoustic device update the first device list so that the first device list is the same as the second device list, and delete the second device list.
  • this application provides a display device, including:
  • Speaker used to play the audio output from the current sounding device
  • the first device list including the device identification of the audio output device to which the display device is connected, and the device identification of the current sounding device, and perform the shutdown operation of the display device;
  • the display device In response to the power-on instruction sent by the user, perform the power-on operation of the display device.
  • the device identification of the first audio output device is the same as that in the first device list.
  • the device identifiers of the current sound-producing devices are the same. If they are the same, the first audio output device is used as the current sound-producing device; if they are different, the device identifier of the first audio output device is added to the second device list In the device identification of the audio output device connected to the display device;
  • the second audio output device selected by the user is received within the second preset time, the second audio output device is determined to be the current sound output device, and the first device list is updated so that the first device list and the second device If the list is the same, delete the second device list;
  • the third audio output device is determined as the current sound output device from among the audio output devices connected to the display device in the second device list according to the preset strategy, Update the first device list so that the first device list is the same as the second device list, and delete the second device list.
  • this application provides a method for selecting an audio output device, the method including:
  • the first device list includes the device identification of the current sounding device, and execute the shutdown operation of the display device;
  • the first audio output device When it is detected that the first audio output device is connected to the display device, if the device identifier of the first audio output device is the same as the device identifier of the current sounding device in the first device list, the first audio output device is An audio output device is used as the current sound output device.
  • this application provides a method for selecting an audio output device, the method including:
  • the first device list includes the device identification of the audio output device connected to the display device, and the device identification of the current sounding device, and execute the shutdown operation of the display device;
  • the display device In response to the power-on instruction sent by the user, perform the power-on operation of the display device.
  • the device identification of the first audio output device is the same as that in the first device list.
  • the device identifiers of the current sound-producing devices are the same. If they are the same, the first audio output device is used as the current sound-producing device; if they are different, the device identifier of the first audio output device is added to the second device list In the device identification of the audio output device connected to the display device;
  • the first device list is updated so that the first device list is the same as the second device list, and the second device list is deleted.
  • the present application provides a method for selecting an audio output device, the method including:
  • the first device list including the device identification of the audio output device to which the display device is connected, and the device identification of the current sounding device, and perform the shutdown operation of the display device;
  • the display device In response to the power-on instruction sent by the user, perform the power-on operation of the display device.
  • the device identification of the first audio output device is the same as that in the first device list.
  • the device identifiers of the current sound-producing devices are the same. If they are the same, the first audio output device is used as the current sound-producing device; if they are different, the device identifier of the first audio output device is added to the second device list In the device identification of the audio output device connected to the display device;
  • the second audio output device is determined as the current output device according to the preset strategy from the audio output devices connected to the display device in the second device list.
  • Acoustic device update the first device list so that the first device list is the same as the second device list, and delete the second device list.
  • the present application provides a method for selecting an audio output device, the method including:
  • the first device list including the device identification of the audio output device to which the display device is connected, and the device identification of the current sounding device, and perform the shutdown operation of the display device;
  • the display device In response to the power-on instruction sent by the user, perform the power-on operation of the display device.
  • the device identification of the first audio output device is the same as that in the first device list.
  • the device identifiers of the current sound-producing devices are the same. If they are the same, the first audio output device is used as the current sound-producing device; if they are different, the device identifier of the first audio output device is added to the second device list In the device identification of the audio output device connected to the display device;
  • the second audio output device selected by the user is received within the second preset time, the second audio output device is determined to be the current sound output device, and the first device list is updated so that the first device list and the second device If the list is the same, delete the second device list;
  • the third audio output device is determined as the current sound output device from among the audio output devices connected to the display device in the second device list according to the preset strategy, Update the first device list so that the first device list is the same as the second device list, and delete the second device list.
  • 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 exemplarily shows a schematic flow diagram of a sound-producing device being switched on in the related art
  • Fig. 3 exemplarily shows a flowchart of the first method for selecting an audio output device of the present application
  • 4A, 4B, and 4C exemplarily show schematic diagrams of updating the device list of the present application
  • Fig. 5 exemplarily shows a schematic diagram of the prompt window of the present application
  • Fig. 6 exemplarily shows a flowchart of the second method for selecting an audio output device of the present application.
  • module refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware or/and software code that can perform functions related to the element.
  • 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 plus and minus keys on the control device 100, and the display device 200 responds to the channel plus and minus 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 instructions 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 can 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 by operating various function keys or virtual buttons of the user interface provided on the mobile terminal 100B, the functions of the physical keys arranged in the remote control 100A can be realized.
  • 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.
  • 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, and 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 via 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 the 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
  • 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 communication protocol types.
  • the display device 200 may transmit content data to an external device connected via the communicator 220, or browse and download content data from an external device connected via the communicator 220.
  • the communicator 220 may include a network communication protocol module such as a WIFI module 221, a Bluetooth module 222, and a wired Ethernet module 223 or a near field communication protocol module, so that the communicator 220 can receive the control signal of the control device 100 according to the control of the controller 250, and Realize the control signal as WIFI signal, Bluetooth signal, radio frequency signal, etc.
  • the detector 230 is a component of the display device 200 for collecting signals from the external environment or interacting with the outside.
  • the detector 230 may include an image collector 232, 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 user attributes 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, which is used to collect the ambient light intensity to adapt to changes in the 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 color temperature of the display device 200 can be adjusted to be relatively cool; when the temperature is relatively low, the color temperature of the display device 200 can be adjusted to be relatively warm.
  • the detector 230 may also include a sound collector, such as a microphone, which may be used to receive a 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
  • a user's voice such as a voice signal of a control instruction for the user to control the display device 200
  • 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 processor 254, a communication interface 255, and a communication bus 256.
  • RAM random access memory
  • ROM read only memory
  • the RAM 251, the ROM 252, the graphics processor 253, and the 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 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, the processor 254 copies various application programs in the memory 260 to the RAM 251, and then starts to run and start various application programs.
  • the graphics processor 253 is used to generate screen images of various graphics objects, such as icons, images, and operation menus.
  • the graphics processor 253 may include an arithmetic unit, which is used to perform operations by receiving various interactive instructions input by the user, and then display various objects according to the display attributes; and a renderer, which is used to generate various objects obtained based on the arithmetic unit, and perform The rendered result is displayed on the display 275.
  • the processor 254 is configured to execute operating system and application program instructions stored in the memory 260. And according to the received user input instructions, to execute various applications, data and content processing, so as to finally display and play various audio and video content.
  • the processor 254 may include multiple processors.
  • the multiple processors may include a main processor and multiple or one sub-processors.
  • the main processor is configured to perform some initialization operations of the display device 200 in the display device preloading mode, and/or, to display screen operations in the normal mode. Multiple or one sub-processor, used to perform an operation in the standby mode of the display device.
  • the communication interface 255 may include the first interface to the nth interface. These interfaces may be network interfaces connected to external devices via a network.
  • the controller 250 may control the overall operation of the display device 200. For example, in response to receiving a user input command for selecting a GUI object displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user input command.
  • 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 operating programs for driving the controller 250 in the display device 200; to store various application programs built in the display device 200 and downloaded from external devices by the user; and to store 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).
  • OS operating system
  • These software and/or programs may include, for example, a kernel, middleware, an 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.
  • 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 middleware related to data broadcasting, and can also be implemented as DLNA middleware of middleware related to external device communication, and can also be implemented as providing Display the middleware of the browser environment in which each application program runs in the device, etc.
  • 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 input by the user, such as a power switch signal, a channel selection signal, and a volume adjustment signal, to the user interface 265, and then the user interface 265 transfers to the controller 250; or the remote control 100A may Receive output signals such as audio, video, or data output from the user interface 265 after processing by the controller 250, and display the received output signal or output the received output signal in the form of audio or vibration.
  • the user may input 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.
  • 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 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.
  • input audio and video data stream such as input MPEG-2 stream (based on the compression standard of digital storage media moving images and voice)
  • 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 for superimposing and mixing the GUI signal generated by the graphics generator with the zoomed video image according to user input or by 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 implemented in such a way as to insert a frame.
  • 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 the video, the image, and the 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.
  • the audio signal to be played 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.
  • 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 a 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.
  • most smart TVs can be connected to multiple audio output devices (such as speaker, ARC, BT, etc.) at the same time.
  • smart TVs basically follow the following playback strategies to formulate the playback sequence of audio output devices, including:
  • the Speaker will speak for 1-2 seconds first. If ARC is connected first, then BT is connected, then BT will finally speak.
  • the Speaker will speak for 1-2 seconds first. If BT is connected first, then ARC is connected, then ARC will finally speak.
  • the smart TV can play sound in four situations, which results in high randomness of the played sound and extremely poor user experience.
  • this application provides a method for selecting an audio output device and a display device, which can make the first sound after power-on, no longer based on the connection speed to determine the sound device, but based on the memory before shutting down
  • the sound output device matches the current sound output device for playback. Let users have a fixed boot experience.
  • the present application provides a display device. Specifically, some components in the display device can also perform the following operations:
  • Speaker used to play the audio output from the current sounding device
  • the controller is used to perform the operation steps shown in Figure 3:
  • Step 301 In response to the shutdown instruction sent by the user, save the first device list, the first device list includes the first audio output device as the current sounding device, and execute the display device shutdown operation;
  • Step 302 In response to the power-on instruction sent by the user, perform a power-on operation of the display device;
  • Step 303 When it is detected that the first audio output device is connected to the display device, if the device ID of the first audio output device is the same as the device ID of the current sounding device in the first device list, change The first audio output device serves as the current sound output device.
  • the current sound output device namely ARC
  • the Speaker will always be muted regardless of whether the Speaker is connected or not.
  • BT is connected before ARC, match the saved sounding device ARC with BT, and find that BT is different from the saved sounding device, so mute the current BT device and wait for ARC to return.
  • the ARC is used as the current sound-producing device to play sound through the speaker.
  • ARC When ARC is connected before BT, because it is the same as the saved sounding device ARC, ARC will be used as the current sounding device to play sound through the speaker. At this time, BT will not play BT, but BT will be muted.
  • the display device will always play the sound of ARC, and mute the BT and Speaker, so as to ensure that the sound of ARC is heard before and after shutdown.
  • the present application provides a display device. Specifically, some components in the display device can also perform the following operations:
  • the controller first saves the first device list in response to the shutdown instruction sent by the user.
  • the first device list includes the device identification of the audio output device to which the display device is connected, and the device identification of the current sounding device, and executes the display device Shutdown operation.
  • the saving of the first device list is performed by saving the binary value corresponding to the sum of the device identification of each audio output device connected to the display device in the first device list to the audio in the system properties The first designated position of the information field; and the binary value corresponding to the device identifier of the audio output device as the current sounding device in the first device list is saved to the second designated position of the audio information field.
  • Table 1 shows the device identification of the audio output device, such as the ID number of the device, you can see the ID number corresponding to each audio output device.
  • the device identification of the audio output device connected to the display device can be recorded before shutdown.
  • the device identification of the audio output device connected to the display device can be saved in the system property (property name: persist.sys) in real time. .media.audiopolicy). Store and get through the system interface property_set function and property_get function. This attribute will not be cleared when the machine is turned on and off.
  • persist.sys.media.audiopolicy is a 16-bit binary value for saving audio info.
  • the data format is 000y yyyy 000x xxxx. in:
  • the lower 5 digits can mark the device ID of the connected audio output device. For example, you can convert the sum of the last 5 digits of the IDs of all the connected audio output devices in Table 1 into a binary value, and fill in x in the field. One or more connected audio output devices can be determined by the binary value.
  • the lower 5 bits of the upper eight bits can mark the device identification of the current sounding device.
  • the last five bits of the ID of the audio output device in Table 1 can be converted into a binary value and filled in the field represented by y Among them, the binary value can uniquely correspond to the device identification of an audio output device.
  • Speaker the last 5 digits of ID is 00001
  • ARC the last 5 digits of ID is 00002
  • the sum of the last 5 digits of ID is 3, and the conversion to binary is 11, assuming that ARC is the current sounding device.
  • the last 5 digits of the ARC ID are 00002, and the binary value is 10, so the final first device list corresponding to 000yyyyy000xxxxx should be 0000001000000011.
  • the display device After receiving the power-on instruction sent by the user, perform the power-on operation of the display device, and when it is detected that the first audio output device is connected to the display device, it is determined whether the device identification of the first audio output device is consistent with the first device list
  • the device identifiers of the current sound-producing devices in are the same.
  • the device identification of the first audio output device is added to the device identification of the audio output device connected to the display device in the second device list.
  • the timing starts when the display device is turned on, and when the first preset time (for example, 5 seconds) after the display device is turned on, it is determined whether the current sounding device has been determined.
  • the first preset time for example, 5 seconds
  • the first device list is updated so that the first device list is the same as the second device list, and the second device list is deleted.
  • the update of the first device list is as follows:
  • the device ID of the audio output device to which the display device is connected in the first device list contains the device ID of the audio output device that is different from the device ID of the audio output device to which the display device is connected in the second device list, modify the first device ID
  • the device identifiers of the audio output devices to which the display device is connected are displayed in a device list, so that the device identifiers of the audio output devices to which the display device is connected in the first device list and the second device list are the same.
  • the first type when the device is unplugged, as shown in Figure 4A, suppose the connected audio output devices before shutting down are Speaker, ARC, and BT, and the last five ID numbers of Speaker, ARC, and BT are 00001, 00002, respectively , 00004, the sum of the last 5 digits of the three IDs is 7, and the conversion to binary is 111. If the ARC is the current sounding device, the last 5 digits of the ARC ID is 00002, and the conversion to binary is 10, then the first device list is specific Including: 0000 0010 0000 0111.
  • the display device When the display device is turned on for the first preset time, assuming that the currently connected devices are Speaker and ARC, and ARC is the current sounding device, the sum of the last 5 digits of the ID of the two is 3, converted into binary is 11, ARC The last 5 digits of the ID are 00002, and the conversion to binary is 10, and the second device list specifically includes: 0000 0010 0000 0011.
  • the device ID of the first device list is different from the device ID of the second device list, that is, the device ID of BT.
  • the device ID of BT There is no device ID corresponding to BT in the second device list. It can be considered that BT has not successfully connected back. Therefore, update the first device
  • the list is specifically: deleting the BT device identifier in the first device list, so that the updated first device list is the same as the second device list, and then deleting the second device list.
  • the second type when a device is plugged in, as shown in Figure 4B, suppose the connected audio output devices before shutting down are Speaker, ARC, and BT.
  • the last five ID numbers of Speaker, ARC, and BT are 00001, 00002, respectively. 00004, the sum of the last 5 digits of the three IDs is 7, and the conversion to binary is 111. If ARC is the current sounding device, the last 5 digits of ARC ID is 00002, and the conversion to binary is 10, then the first device list specifically includes : 0000 0010 0000 0111.
  • the display device When the display device is turned on for the first preset time, assuming that the currently connected devices are Speaker, ARC, BT, and Spdif (the last five digits ID number is 0008), the sum of the last five digits of the four ID numbers is 15, which is converted into binary It is 1111. Assuming that ARC is the current sound-producing device, the last 5 digits of ARC ID is 00002, and the conversion to binary is 10, then the second device list specifically includes: 0000 0010 0000 1111.
  • the device ID in the first device list that is different from the device ID in the second device list is the device ID of Spdif, and the device ID corresponding to Spdif is extra in the second device list.
  • Spdif can be considered as a newly inserted device. Therefore, update the first device ID.
  • the device list is specifically: adding the device identifier of Spdif to the first device list, so that the updated first device list is the same as the second device list, and then deleting the second device list.
  • the device ID of the current sounding device in the first device list is different from the device ID of the current sounding device in the second device list, the device ID of the current sounding device in the first device list is modified so that the first device list A device list is the same as the device identification of the current sound-producing device in the second device list.
  • the connected audio output devices before shutdown are Speaker, ARC, and BT.
  • the last five ID numbers of Speaker, ARC, and BT are 00001, 00002, and 00004, respectively, and the last 5 digits of the three ID numbers The sum is 7, and the conversion to binary is 111. If the ARC is the current sounding device, the last 5 digits of the ARC ID is 00002, and the conversion to binary is 10, the first device list specifically includes: 0000 0010 0000 0111.
  • the display device When the display device is turned on for the first preset time, assuming that the currently connected devices are Speaker and BT, and BT is the current sounding device, the sum of the last 5 digits of the ID of the two is 5, and the conversion to binary is 101. If BT The last 5 digits of the ID is 00004, and converted to binary is 100, the second device list specifically includes: 0000 0100 0000 0101.
  • the different devices in the first device list and the second device list are the device IDs of BT and ARC.
  • the device ID of ARC is missing in the second device list, indicating that ARC may be unplugged, and the device ID of BT at this time
  • Update to the device ID of the current sounding device, so the update of the first device list is specifically: delete the device ID of ARC from the first device list, and change the device ID of the current sounding device from the device ID of ARC to the device ID of BT , So that the updated first device list is the same as the second device list, and then the second device list is deleted.
  • the current sounding device ARC device is unplugged, and the current sounding device cannot be matched within the first preset time, then from the remaining device list, select the device with the highest priority to sound.
  • the preset priorities are: BT>ARC>Speaker. Therefore, BT can be selected as the new sound output device.
  • the first device list is further updated so that the first device list is the same as the second device list, and the second device list is deleted.
  • an interactive window for selecting a sounding device can be further displayed in the playback interface, where the sounding device to be selected is the connected audio output of the display device in the second device list equipment. This allows the user to select a sound output device through the interactive window.
  • the interactive window is shown in FIG. 5, and a window can be displayed in the display interface.
  • the speaker option which includes currently connected audio output devices, such as display speaker, ARC, and Bluetooth device. The user can select the corresponding audio output device by operating the remote control.
  • the second audio output device selected by the user is received within the second preset time (for example, 5 seconds)
  • the second audio output device is determined to be the current sound output device, and the first device list is updated so that the first device The list is the same as the second device list, delete the second device list.
  • the third audio output device is determined as the current sound output device from among the audio output devices connected to the display device in the second device list according to the preset strategy, Update the first device list so that the first device list is the same as the second device list, and delete the second device list.
  • the specific operation process of the method for selecting an audio output device performed by the controller in this embodiment includes:
  • Step 601 Receive a shutdown instruction, and save a first device list, where the first audio output device is the current sounding device and controls AC power off;
  • Step 602 Receive a power-on instruction, control AC power-on, and start a first timer
  • Step 603 Judge whether the first timer expires, if yes, go to step 608; if not, go to step 604;
  • Step 604 If the second audio output device connected back is monitored, go to step 605;
  • Step 605 Determine that the second audio output device is the same as the first audio output device, if yes, go to step 606; if not, go to step 607;
  • Step 606 Determine that the second audio output device is the current sound output device, and go to step 608;
  • Step 607 Add the second audio output device to the connected devices in the second device list, and go to step 608;
  • Step 608 Determine whether the sound-producing device is currently determined, if yes, go to step 609, if not, go to step 610;
  • Step 609 Determine whether the first device list and the second device list are the same; if yes, go to step 614; if not, go to step 615;
  • Step 610 Start a second timer, display an interactive window on the display interface, and go to step 611;
  • Step 611 When the second timer expires, determine whether the third audio output device selected by the user is received, if yes, go to step 612; if not, go to step 613;
  • Step 612 Use the third audio output device as the current sound-producing device, and go to step 615;
  • Step 613 Select the fourth audio output device as the current sound output device based on the playback strategy, and go to step 615;
  • Step 614 Delete the second device list and end
  • Step 615 Update the first device list according to the second device list, delete the second device list, and end.

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Abstract

本申请公开了一种音频输出设备的选择方法及显示设备，该方法包括：响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括当前出声设备的设备标识，执行显示设备关机操作；响应于用户发送的开机指令，执行显示设备开机操作；在监测到第一音频输出设备连接所述显示设备时，如果所述第一音频输出设备的设备标识与所述第一设备列表中的所述当前出声设备的设备标识相同，将所述第一音频输出设备作为当前出声设备。

Description

一种音频输出设备的选择方法及显示设备
本申请要求在2020年6月19日提交中国专利局、申请号为CN 202010568836.7、申请名称为“一种音频输出设备的选择方法及显示设备”的优先权；其全部内容通过引用结合在本申请中。
技术领域
本申请涉及软件技术领域，尤其涉及一种音频输出设备的选择方法及显示设备。
背景技术
智能电视为满足用户对音效的高级体验，支持不同的外部音频输出设备。外部音频输出设备主要有以下几种：Display Speaker(内置扬声器，以下简称Speaker)，ARC(Audio Return Channel，声音回传)设备，Bluetooth Device(蓝牙装置，以下简称BT)等。虽然有多路音频输出设备，但在同一时刻向扬声器输出音频的出声设备只能是一个，因此需要对这些音频输出设备的声音播放顺序采用一定的控制策略，从而可以依据用户设定的播放顺序而执行，择一而用。
然而，关机前采用的播放顺序在智能电视关机再开机后，其播放声音的顺序往往是基于设备开机回连速度决定的。音频输出设备的回连速度受限于音频输出设备的性能和电视整机性能的影响，例如，不同厂家的同一种音频输出设备，其回连速度会有很大的差异；在不同时刻的同一个音频输出设备，其回连的响应时间也是不固定的。因此智能电视开机后音频输出设备回连的速度是不可预测的，从而导致智能电视开关机前后输出的声音不一致的问题，带来较差的用户体验。
发明内容
有鉴于此，本申请提供一种音频输出设备的选择方法及显示设备，
具体地，本申请是通过如下技术方案实现的：
第一方面，本申请提供一种显示设备，包括：
显示器；
扬声器，用于播放当前出声设备输出的音频；
控制器，用于执行：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括当前出声设备的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作；
在监测到第一音频输出设备连接所述显示设备时，如果所述第一音频输出设备的设备标识与所述第一设备列表中的所述当前出声设备的设备标识相同，将所述第一音频输出设备作为当前出声设备。
第二方面，本申请提供一种显示设备，包括：
显示器；
扬声器，用于播放当前出声设备输出的音频；
控制器，用于执行：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
显示设备开机之后的第一预设时间到达时，如果已确定当前出声设备，则更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
第三方面，本申请提供一种显示设备，包括：
显示器；
扬声器，用于播放当前出声设备输出的音频；
控制器，用于执行：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是 否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
第四方面，本申请提供一种显示设备，包括：
显示器；
扬声器，用于播放当前出声设备输出的音频；
控制器，用于执行：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则在播放界面中显示用于选择出声设备的交互窗口，其中待选择的出声设备为所述第二设备列表中的显示设备已连接的音频输出设备；
若在第二预设时间内收到用户选择的第二音频输出设备，则确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表；
若在第二预设时间内未收到用户选择的音频输出设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第三音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
第五方面，本申请提供一种音频输出设备的选择方法，所述方法包括：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括当前出声设备的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作；
在监测到第一音频输出设备连接所述显示设备时，如果所述第一音频输出设备的设备标识与所述第一设备列表中的所述当前出声设备的设备标识相同，将所述第一音频输出设备作为当前出声设备。
第六方面，本申请提供一种音频输出设备的选择方法，所述方法包括：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
显示设备开机之后的第一预设时间到达时，如果已确定当前出声设备，则更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
第七方面，本申请提供一种音频输出设备的选择方法，所述方法包括：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备 列表与第二设备列表相同，删除第二设备列表。
第八方面，本申请提供一种音频输出设备的选择方法，所述方法包括：
响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则在播放界面中显示用于选择出声设备的交互窗口，其中待选择的出声设备为所述第二设备列表中的显示设备已连接的音频输出设备；
若在第二预设时间内收到用户选择的第二音频输出设备，则确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表；
若在第二预设时间内未收到用户选择的音频输出设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第三音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
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中示例性示出了相关技术中的开机选择出声设备的流程示意图；
图3中示例性示出了本申请的第一种音频输出设备的选择方法的流程图；
图4A、4B、4C中示例性示出了本申请的设备列表更新的示意图；
图5中示例性示出了本申请的提示窗口的示意图；
图6中示例性示出了本申请的第二种音频输出设备的选择方法的流程图。
具体实施方式
为使本申请示例性实施例的目的、技术方案和优点更加清楚，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技术方案进行清楚、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技术方案。
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、音频输出接口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度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度以及该频度所携带的电视信号。
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、蓝牙模块222、有线以太网模块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232，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，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、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、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，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，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。
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，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。
在一些实施例中，智能电视大部分可以同时连接多个音频输出设备(例如speaker、ARC、BT等)。目前智能电视基本遵循以下播放策略来制定音频输出设备的播放顺序，其中包括：
1)最新连接的音频输出设备出声，其他音频输出设备静音；
2)断开当前出声的音频输出设备时，剩余音频输出设备设备按照特定机制选择一个新的出声设备；
3)用户可以手动通过菜单选项指定出声设备。
但是在特定场景下，上述规则对于用户的体验来说，比较差。
如图2所示，当智能电视同时连接ARC、BT、Speaker来播放DTV时，假设当前出声设备为ARC。当智能电视先执行交流断电(即关机)动作，后执行交流上电(即开机)导致时，智能电视会进入DTV，进行关机之前的节目播放。但是由于ARC和BT设备没有关机，会进行设备回连，此时按照上述的播放策略。会出现以下几种情况：
如果ARC和BT回连的比较慢，则Speaker先出声1-2秒，假设ARC先连接，BT后连接，则最终是BT出声。
如果ARC和BT回连的比较慢，则Speaker先出声1-2秒，假设BT先连接，ARC后连接，则最终是ARC出声。
如果ARC和BT回连的比较快，但ARC先连接，BT后连接，则最终是BT出声。
如果ARC和BT回连的比较快，但BT先连接，ARC后连接，则最终是ARC出声。
由此可见，当该智能电视上执行同一种操作时，智能电视可以发生四种播放声音的情形，导致播放声音的随机性较高，导致用户使用体验极差。
针对上面提出的问题，本申请提供了一种音频输出设备的选择方法及显示设备，可以使开机后的首次出声，不再根据回连速度来决定出声的设备，而是根据关机前记忆的出声设备匹配当前出声设备进行播放。让用户有一个固定的开机体验。
具体方案请见以下实施例。
在第一个实施例中，本申请提供一种显示设备，具体来讲，该显示设备中的部分组件还可以具体执行如下操作：
显示器；
扬声器，用于播放当前出声设备输出的音频；
控制器，用于执行如图3所示的操作步骤：
步骤301、响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括作为当前出声设备的第一音频输出设备，执行显示设备关机操作；
步骤302、响应于用户发送的开机指令，执行显示设备开机操作；
步骤303、在监测到第一音频输出设备连接所述显示设备时，如果所述第一音频输出设备的设备标识与所述第一设备列表中的所述当前出声设备的设备标识相同，将所述第一音频输出设备作为当前出声设备。
在图2所示的场景中，当智能电视同时连接ARC、BT、Speaker来播放DTV时，假设当前出声设备为ARC。当智能电视先执行交流断电(即关机)动作，后执行交流上电(即开机)导致时，智能电视会进入DTV，进行关机之前的节目播放。但是由于ARC和BT设备没有关机，会进行设备回连。
此时按照本申请的音频输出设备选择方法，可以在关机前保存当前出声设备，即ARC。
此时由于Speaker与保存的出声设备ARC不同，因此不论Speaker是否连接，始终将Speaker静音。
监测设备的回连情况，如果是BT先于ARC回连，根据保存的出声设备ARC与BT进行匹配，发现BT与保存的出声设备不相同，因此将当前的BT设备静音，等待ARC回连时，由于与保存的出声设备ARC相同，则使ARC作为当前出声设备通过扬声器播放声音。
当ARC先于BT回连时，由于与保存的出声设备ARC相同，则使ARC作为当前出声设备通过扬声器播放声音，此时BT回连也不会播放BT，而是将BT静音。
可见，采用本申请的选择方法后，不论ARC、BT的回连顺序先后，显示设备始终会播放ARC的声音，而将BT和Speaker静音，从而保证关机前后都是ARC出声。
在第二个实施例中，本申请提供一种显示设备，具体来讲，该显示设备中的部分组件还可以具体执行如下操作：
控制器先响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的的设备标识，执行显示设备关机操作。
在一个例子中，所述保存第一设备列表，具体通过将所述第一设备列表中的显示设备已连接的每个音频输出设备的设备标识之和对应的二进制数值保存到系统属性中的音频信息字段的第一指定位置；将所述第一设备列表中的作为当前出声设备的音频输出设备的设备标识对应的二进制数值保存到该音频信息字段的第二指定位置。
举例来讲：
设备名称 ID
Speaker 0x8000 0001
Hdmi_arc 0x8000 0002
BT 0x8000 0004
表1
表1为音频输出设备的设备标识，如设备的ID号，可以看到每个音频输出设备对应的ID号。
本实施例中，可以将关机前显示设备已连接的音频输出设备的设备标识进行记录，例如可以将显示设备连接的音频输出设备的设备标识全部实时保存在系统property属性(属性名称：persist.sys.media.audiopolicy)中。通过系统接口property_set函数和property_get函数进行存储和获取。此属性不会随 着开关机而被清除。
persist.sys.media.audiopolicy对应数值为16位二进制数值，用以保存audio info。数据格式为000y yyyy 000x xxxx。其中：
低5位(x表示)可以标记已连接的音频输出设备的设备标识，例如，可以将表1中的已连接的全部音频输出设备的ID的后五位编号之和转换成二进制数值，填写到x表示的字段中。通过二进制数值可以确定出已连接的一个或多个音频输出设备。
高八位中的低5位(y表示)可以标记当前出声设备的设备标识，例如，可以将表1中的音频输出设备的ID的后五位转换成二进制数值，填写到y表示的字段中，二进制数值可以唯一对应一个音频输出设备的设备标识。
例如，Speaker(ID后5位是00001)和ARC(ID后5位是00002)是已连接的设备，ID后5位之和是3，转换成二进制是11，假设ARC是当前出声设备，ARC的ID后5位是00002，转换成二进制是10，则最终的第一设备列表对应的000y yyyy 000x xxxx应该是，0000 0010 0000 0011。
当收到用户发送的开机指令后，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同。
若相同，则将所述第一音频输出设备作为当前出声设备。
若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中。
在显示设备开机时开始计时，当显示设备开机之后的第一预设时间(例如5秒)到达时，判断是否已经确定当前出声设备。
(1)如果已确定当前出声设备，则更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
具体来讲，所述更新第一设备列表，具体如下：
若第一设备列表中的显示设备已连接的音频输出设备的设备标识中存在与第二设备列表中的显示设备已连接的音频输出设备的设备标识不同的音频输出设备的设备标识，则修改第一设备列表中的显示设备已连接的音频输出设备的设备标识，以使所述第一设备列表与第二设备列表的显示设备已连接的音频输出设备的设备标识相同。
第一设备列表中存在与第二设备列表不同具体包括两种情况：
第一种，有设备拔出时，如图4A所示，假设关机前的已连接的音频输出 设备为Speaker、ARC和BT，其中Speaker、ARC和BT的后五位ID号分别为00001、00002、00004，三者的ID后5位之和是7，转换成二进制是111，若ARC是当前出声设备，ARC的ID后5位是00002，转换成二进制是10，则第一设备列表具体包括：0000 0010 0000 0111。
当显示设备开机第一预设时间后，假设当前已连接的设备为Speaker和ARC，且ARC为当前出声设备，二者的ID后5位之和是3，转换成二进制是11，ARC的ID后5位是00002，转换成二进制是10，则第二设备列表具体包括：0000 0010 0000 0011。
此时第一设备列表中与第二设备列表的不同的设备标识，即BT的设备标识，第二设备列表中没有BT对应的设备标识，可以认为BT没有回连成功，因此，更新第一设备列表具体为：将第一设备列表中的BT设备标识删除，从而使更新后的第一设备列表与第二设备列表相同，然后删除第二设备列表。
第二种，有设备插入时，如图4B所示，假设关机前的已连接的音频输出设备为Speaker、ARC和BT，其中Speaker、ARC和BT的后五位ID号分别为00001、00002、00004，三者的ID后5位之和是7，转换成二进制是111，若ARC是当前出声设备，ARC的ID后5位是00002，转换成二进制是10，则第一设备列表具体包括：0000 0010 0000 0111。
当显示设备开机第一预设时间后，假设当前已连接的设备为Speaker、ARC、BT以及Spdif(后五位ID号为00008)，四者的ID后5位之和是15，转换成二进制是1111，假设ARC是当前出声设备，ARC的ID后5位是00002，转换成二进制是10，则第二设备列表具体包括：0000 0010 0000 1111。
此时第一设备列表中与第二设备列表的不同的设备标识为Spdif的设备标识，第二设备列表中多出Spdif对应的设备标识，可以认为Spdif为新插入的设备，因此，更新第一设备列表具体为：将第一设备列表中增加Spdif的设备标识，从而使更新后的第一设备列表与第二设备列表相同，然后删除第二设备列表。
若第一设备列表中的当前出声设备的设备标识与第二设备列表中的当前出声设备的设备标识不同，则修改第一设备列表的当前出声设备的设备标识，以使所述第一设备列表与第二设备列表中的当前出声设备的设备标识相同。
如图4C所示，假设关机前的已连接的音频输出设备为Speaker、ARC和BT，其中Speaker、ARC和BT的后五位ID号分别为00001、00002、00004，三者的ID后5位之和是7，转换成二进制是111，若ARC是当前出声设备， ARC的ID后5位是00002，转换成二进制是10，则第一设备列表具体包括：0000 0010 0000 0111。
当显示设备开机第一预设时间后，假设当前已连接的设备为Speaker和BT，且BT为当前出声设备，二者的ID后5位之和是5，转换成二进制是101，若BT的ID后5位是00004，转换成二进制是100则第二设备列表具体包括：0000 0100 0000 0101。
此时第一设备列表中与第二设备列表的不同的设备为BT和ARC的设备标识，第二设备列表中少了ARC的设备标识，说明ARC可能被拔出，而此时BT的设备标识中更新为当前出声设备的设备标识，因此更新第一设备列表具体为：将第一设备列表中删除ARC的设备标识，当前出声设备的设备标识由ARC的设备标识改为BT的设备标识，从而使更新后的第一设备列表与第二设备列表相同，然后删除第二设备列表。
(2)如果未确定当前出声设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略选确定第二音频输出设备作为当前出声设备。
例如，假设当前出声设备ARC设备被拔掉，第一预设时间内无法匹配到当前出声设备，则从剩下的设备列表中，选择优先级最高的设备出声。例如预设的优先级依次：BT>ARC>Speaker。因此可以选择BT为新的出声设备。
确定当前出声设备后，进一步更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
(3)如果未确定当前出声设备，进一步可以在播放界面中显示用于选择出声设备的交互窗口，其中待选择的出声设备为所述第二设备列表的显示设备已连接的音频输出设备。以使用户通过该交互窗口选择出声设备。
交互窗口如图5所示，可以在显示界面中显示一个窗口，该窗口中是扬声器(speakers)选项，其中包括当前已连接的音频输出设备，例如display speaker、ARC、以及Bluetooth device。用户可以通过操作遥控器选择相应的音频输出设备。
若在第二预设时间内(例如5秒)收到用户选择的第二音频输出设备，则确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
若在第二预设时间内未收到用户选择的出声设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第三音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表 相同，删除第二设备列表。
如图6所示，本实施例中的所述控制器执行音频输出设备的选择方法的具体操作过程，包括：
步骤601、接收关机指令，保存第一设备列表，其中第一音频输出设备为当前出声设备，控制交流断电；
步骤602、接收开机指令，控制交流上电，开启第一计时器；
步骤603、判断第一计时器是否到时，若是，转步骤608；若否，转步骤604；
步骤604、监听到回连的第二音频输出设备，转步骤605；
步骤605、判断第二音频输出设备与第一音频输出设备相同，若是，转步骤606；若否，转步骤607；
步骤606、确定第二音频输出设备为当前出声设备，转步骤608；
步骤607、将第二音频输出设备添加到第二设备列表的已连接设备中，转步骤608；
步骤608、判断当前是否确定出声设备，若是，则转步骤609，若否，则转步骤610；
步骤609、判断第一设备列表和第二设备列表是否相同；若是，则转步骤614；若否，转步骤615；
步骤610、开启第二计时器，在显示界面显示交互窗口，转步骤611；
步骤611、在第二计时器到时时，判断是否收到用户选择的第三音频输出设备，若是，则转步骤612；若否，则转步骤613；
步骤612、将第三音频输出设备作为当前出声设备，转步骤615；
步骤613、基于播放策略选择第四音频输出设备作为当前出声设备，转步骤615；
步骤614、删除第二设备列表，结束；
步骤615、根据第二设备列表更新第一设备列表，删除第二设备列表，结束。
关于在显示设备上进行播放语言的选择的方法的具体实施例可以参考上述显示设备中各个模块处理的实施例，此处不再赘述。
为了方便解释，已经结合具体的实施方式进行了上述说明。但是，上述示例性的讨论不是意图穷尽或者将实施方式限定到上述公开的具体形 式。根据上述的教导，可以得到多种修改和变形。上述实施方式的选择和描述是为了更好的解释原理以及实际的应用，从而使得本领域技术人员更好的使用所述实施方式以及适于具体使用考虑的各种不同的变形的实施方式。

Claims (10)

  1. 一种显示设备，其特征在于，包括：
    显示器；
    扬声器，用于播放当前出声设备输出的音频；
    控制器，用于执行：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括当前出声设备的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作；
    在监测到第一音频输出设备连接所述显示设备时，如果所述第一音频输出设备的设备标识与所述第一设备列表中的所述当前出声设备的设备标识相同，将所述第一音频输出设备作为当前出声设备。
  2. 一种显示设备，其特征在于，包括：
    显示器；
    扬声器，用于播放当前出声设备输出的音频；
    控制器，用于执行：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
    显示设备开机之后的第一预设时间到达时，如果已确定当前出声设备，则更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
  3. 一种显示设备，其特征在于，包括：
    显示器；
    扬声器，用于播放当前出声设备输出的音频；
    控制器，用于执行：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
    显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
  4. 一种显示设备，其特征在于，包括：
    显示器；
    扬声器，用于播放当前出声设备输出的音频；
    控制器，用于执行：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
    显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则在播放界面中显示用于选择出声设备的交互窗口，其中待选择的出声设备为所述第二设备列表中的显示设备已连接的音频输出设备；
    若在第二预设时间内收到用户选择的第二音频输出设备，则确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表；
    若在第二预设时间内未收到用户选择的音频输出设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第三音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
  5. 如权利要求2至4中的任一权利要求所述的显示设备，其特征在于，所述保存第一设备列表，具体包括：
    将所述第一设备列表中的显示设备已连接的每个音频输出设备的设备标识之和对应的二进制数值保存到系统属性中的音频信息字段的第一指定位置；
    将所述第一设备列表中的作为当前出声设备的音频输出设备的设备标识对应的二进制数值保存到该音频信息字段的第二指定位置。
  6. 如权利要求2至4中的任一权利要求所述的显示设备，其特征在于，所述更新第一设备列表，具体包括：
    若第一设备列表中的显示设备已连接的音频输出设备的设备标识中存在与第二设备列表中的显示设备已连接的音频输出设备的设备标识不同的音频输出设备的设备标识，则修改第一设备列表中的显示设备已连接的音频输出设备的设备标识，以使所述第一设备列表与第二设备列表的显示设备已连接的音频输出设备的设备标识相同；
    若第一设备列表中的当前出声设备的设备标识与第二设备列表中的当前出声设备的设备标识不同，则修改第一设备列表的当前出声设备的设备标识，以使所述第一设备列表与第二设备列表中的当前出声设备的设备标识相同。
  7. 一种音频输出设备的选择方法，其特征在于，所述方法包括：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括当前出声设备的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作；
    在监测到第一音频输出设备连接所述显示设备时，如果所述第一音频输出设备的设备标识与所述第一设备列表中的所述当前出声设备的设备标识相同，将所述第一音频输出设备作为当前出声设备。
  8. 一种音频输出设备的选择方法，其特征在于，所述方法包括：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
    显示设备开机之后的第一预设时间到达时，如果已确定当前出声设备，则更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
  9. 一种音频输出设备的选择方法，其特征在于，所述方法包括：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的设备标识中；
    显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
  10. 一种音频输出设备的选择方法，其特征在于，所述方法包括：
    响应于用户发送的关机指令，保存第一设备列表，所述第一设备列表中包括显示设备已连接的音频输出设备的设备标识，以及当前出声设备的设备标识，执行显示设备关机操作；
    响应于用户发送的开机指令，执行显示设备开机操作，在监测到第一音频输出设备连接所述显示设备时，判断所述第一音频输出设备的设备标识是否与所述第一设备列表中的所述当前出声设备的设备标识相同，若相同，则将所述第一音频输出设备作为当前出声设备；若不同，则将第一音频输出设备的设备标识添加到该第二设备列表中的显示设备已连接的音频输出设备的 设备标识中；
    显示设备开机之后的第一预设时间到达时，如果未确定当前出声设备，则在播放界面中显示用于选择出声设备的交互窗口，其中待选择的出声设备为所述第二设备列表中的显示设备已连接的音频输出设备；
    若在第二预设时间内收到用户选择的第二音频输出设备，则确定第二音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表；
    若在第二预设时间内未收到用户选择的音频输出设备，则从第二设备列表的显示设备已连接的音频输出设备中按照预设策略确定第三音频输出设备作为当前出声设备，更新第一设备列表，以使所述第一设备列表与第二设备列表相同，删除第二设备列表。
PCT/CN2020/104626 2020-06-19 2020-07-24 一种音频输出设备的选择方法及显示设备 WO2021253575A1 (zh)

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