CN112073789B - Sound processing method and display device - Google Patents

Abstract

The embodiment of the application shows a sound processing method and a display device, and is particularly suitable for a social television. According to the technical scheme, a first chip receives audio and video data, wherein the audio and video data comprise audio data and video data; in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port; wherein the second chip is configured to control the sound output of the speaker according to the audio data and control the audio-visual output of the display according to the video data. The technical scheme shown in the embodiment of the application adopts different ports for transmitting audio data with different formats between the first chip and the second chip, so that the audio data with all formats can be transmitted between the first chip and the second chip, and the problem that the audio data with the AC4 format cannot be transmitted through an HDMI channel is effectively solved.

Description

Sound processing method and display device

This application claims priority to a chinese patent application filed by the national intellectual property office on 10/06/10/2019 with application number 201910498221.9. The entire contents of which are incorporated by reference in the present application.

Technical Field

The embodiment of the application relates to a display technology. And more particularly, to a sound processing method and a display apparatus.

Background

Currently, since a display device can provide a user with a play picture such as audio, video, picture, etc., it is receiving a wide attention of the user. In recent years, the functional demands of users for display devices have increased. For example, a user wants to watch a high-definition cable television through a display device, and sometimes the user wants to watch a web television through the display device.

The inventor finds that the dual hardware display device can meet the above requirements of the user at the same time, and generally, the dual hardware display device includes two chips, namely, a first chip and a second chip. The second chip is used for receiving wired multimedia signals, the first chip is used for receiving network multimedia signals, and the network multimedia signals of the first chip comprise: the first chip needs to transmit the network multimedia file to the second chip, and the second chip transmits the network audio data in the multimedia file to the loudspeaker for playing.

Due to the diversity of the source formats of the network audio data pieces, the first chip is communicated with the second chip through the HDMI channel, and for some audio data with special formats, the audio data cannot pass through the HDMI channel.

Therefore, there is a need for a method for transmitting audio data to solve the problem that audio data with a specific format cannot be transmitted from the first chip to the second chip.

Disclosure of Invention

In view of the above technical problems, an object of the present application is to provide a sound processing method and a display apparatus.

A first sound processing method according to an embodiment of the present application is applied to a display device, where the display device includes a first chip, a second chip connected to the first chip, and a speaker connected to the second chip, and the method includes:

the method comprises the steps that a first chip receives audio and video data, wherein the audio and video data comprise audio data and video data;

in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port;

wherein the second chip is configured to control the sound output of the speaker according to the audio data and control the audio-visual output of the display according to the video data.

A second aspect of embodiments of the present application shows a display device including:

a first chip provided with a first port and a second port;

a second chip communicatively connected to the first chip;

the loudspeaker is connected with the second chip;

the display is connected with the second chip;

the first chip is configured to receive input audio and video data, wherein the audio and video data comprises audio data and video data;

in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port;

the second chip is configured to control sound output of the speaker according to the audio data and control audio-video output of the display according to the video data.

According to the technical scheme, the embodiment of the application shows a sound processing method and a display device, and the first chip receives audio and video data which comprise audio data and video data; in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port; wherein the second chip is configured to control the sound output of the speaker according to the audio data and to control the audio-visual output of the display according to the video data. The technical scheme shown in the embodiment of the application adopts different ports for transmitting audio data with different formats between the first chip and the second chip, so that the audio data with all formats can be transmitted between the first chip and the second chip, and the problem that the audio data with the AC4 format cannot be transmitted through an HDMI channel is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment;

fig. 2 is a block diagram exemplarily showing a hardware configuration of thecontrol apparatus 100 according to the embodiment;

fig. 3 is a block diagram exemplarily showing a hardware configuration of thedisplay device 200 according to the embodiment;

a block diagram of the hardware architecture of thedisplay device 200 according to fig. 3 is exemplarily shown in fig. 4;

fig. 5 is a diagram exemplarily showing a functional configuration of thedisplay device 200 according to the embodiment;

fig. 6a schematically shows a software configuration in thedisplay device 200 according to an embodiment;

fig. 6b schematically shows a configuration of an application in thedisplay device 200 according to an embodiment;

fig. 7 schematically shows a user interface in thedisplay device 200 according to an embodiment;

fig. 8 is a flow chart illustrating a method of sound transmission by dual hardware;

fig. 9 is a flow chart illustrating a method of sound transmission by dual hardware;

fig. 10 is a block diagram illustrating a structure of a display device.

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 exemplary embodiments described are only a part of the embodiments of the present application, and not all the embodiments.

For the convenience of users, various external device interfaces are usually provided on the display device to facilitate connection of different peripheral devices or cables to implement corresponding functions. When a high-definition camera is connected to an interface of the display device, if a hardware system of the display device does not have a hardware interface of a high-pixel camera receiving the source code, data received by the camera cannot be displayed on a display screen of the display device.

Furthermore, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resources, and usually only supports video decoding with a resolution of 4K at most, so when a user wants to perform video chat while watching a network television, the user needs to use the hard decoding resources (usually GPU in the hardware system) to decode the network video without reducing the definition of the network video screen, and in this case, the user can only process the video chat screen by using a general-purpose processor (e.g. CPU) in the hardware system to perform soft decoding on the video.

The soft decoding is adopted to process the video chat picture, so that the data processing burden of a CPU (central processing unit) can be greatly increased, and when the data processing burden of the CPU is too heavy, the problem of picture blocking or unsmooth flow can occur. Further, due to the data processing capability of the CPU, when the CPU performs soft decoding on the video chat screen, multiple paths of video calls cannot be generally implemented, and when a user wants to perform video chat with multiple other users in the same chat scene, access is blocked.

In view of the above aspects, to overcome the above drawbacks, the present application discloses a dual hardware system architecture to implement multiple channels of video chat data (at least one channel of local video).

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

The term "module," as used in various embodiments of the present application, may refer 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 "remote control" as used in the embodiments of the present application refers to a component of an electronic device (such as the display device disclosed in the present application) that is capable of wirelessly controlling the electronic device, typically over a short distance. The component may typically be connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user's behavior through a change in hand shape or an action such as hand motion, for expressing an intended idea, action, purpose, or result.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be generally referred to as a motherboard (or chip).

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate thedisplay apparatus 200 through thecontrol device 100.

Thecontrol device 100 may be aremote controller 100A, which can communicate with thedisplay device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-range communication, and is used to control thedisplay device 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 thedisplay apparatus 200. Such as: the user may input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right movement keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement a function of controlling thedisplay apparatus 200.

Thecontrol apparatus 100 may also be a smart device, such as amobile terminal 100B, a tablet computer, a notebook computer, etc., which may communicate with thedisplay device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of thedisplay device 200 through an application program corresponding to thedisplay device 200.

For example, themobile terminal 100B and thedisplay device 200 may each have a software application installed thereon, so that connection communication between the two can be realized through a network communication protocol, and the purpose of one-to-one control operation and data communication can be further realized. Such as: a control instruction protocol can be established between themobile terminal 100B and thedisplay device 200, the remote control keyboard is synchronized to themobile terminal 100B, and the function of controlling thedisplay device 200 is realized by controlling the user interface on themobile terminal 100B; the audio and video content displayed on themobile terminal 100B may also be transmitted to thedisplay device 200, so as to implement a synchronous display function.

As shown in fig. 1, thedisplay apparatus 200 may also perform data communication with theserver 300 through various communication means. In various embodiments of the present application, thedisplay device 200 may be allowed to be communicatively coupled to theserver 300 via a local area network, a wireless local area network, or other network. Theserver 300 may provide various contents and interactions to thedisplay apparatus 200.

Illustratively, thedisplay device 200 receives software Program updates, or accesses a remotely stored digital media library, by sending and receiving information, and Electronic Program Guide (EPG) interactions. Theservers 300 may be a group or groups, 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 theserver 300.

Thedisplay device 200, in one aspect, may be a liquid crystal display, an OLED (Organic Light Emitting Diode) display, a projection display device; on the other hand, the display device can be a display system consisting of an intelligent television or a display and a set-top box. The specific display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that thedisplay device 200 may be modified in performance and configuration as desired.

Thedisplay apparatus 200 may additionally provide an intelligent network tv function that provides a computer support function in addition to the broadcast receiving tv function. Examples include a web tv, a smart tv, an Internet Protocol Tv (IPTV), and the like. In some embodiments, the display device may not have a broadcast receiving television function.

As shown in fig. 1, the display device may be connected or provided with a camera, and is configured to present a picture taken by the camera on a display interface of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera can be displayed on the display device in a full screen mode, a half screen mode or any optional area.

As an optional connection mode, the camera is connected with the display rear shell through the connecting plate, is fixedly installed in the middle of the upper side of the display rear shell, and can be fixedly installed at any position of the display rear shell as an installable mode, so that an image acquisition area is ensured not to be shielded by the rear shell, for example, the display orientation of the image acquisition area is the same as that of the display equipment.

As another alternative connection mode, the camera is connected to the display rear shell through a connection board or other conceivable connector, the camera is capable of lifting, the connector is provided with a lifting motor, when a user wants to use the camera or an application program wants to use the camera, the camera is lifted out of the display, and when the camera is not needed, the camera can be embedded in the rear shell to protect the camera from being damaged.

As an embodiment, the number of the cameras used in the present application may be 1600 ten thousand, so as to achieve the purpose of ultra high definition display. In actual use, cameras higher or lower than 1600 thousand pixels may also be used.

After the display equipment is provided with the camera, contents displayed by different application scenes of the display equipment can be fused in various different modes, so that the function which cannot be realized by the traditional display equipment is achieved.

Illustratively, a user may conduct a video chat with at least one other user while watching a video program. The presentation of the video program may be as a background frame over which a window for video chat is displayed. Vividly, the function can be called as 'chat while watching'.

Optionally, in a scene of "chat while watching", at least one video chat is performed across terminals while watching a live video or a network video.

In another example, a user may conduct a video chat with at least one other user while entering learning from an educational application. For example, a student may interact remotely with a teacher while learning content in an educational application. Vividly, the function can be called as 'chatting while learning'.

In another example, a user conducts a video chat with a player entering a card game while playing the game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figuratively, this function may be referred to as "watch while playing".

Optionally, the game scene is fused with the video picture, the portrait in the video picture is scratched and displayed in the game picture, and the user experience is improved.

Optionally, in the motion sensing game (such as ball hitting, boxing, running and dancing), the human posture and motion, limb detection and tracking and human skeleton key point data detection are obtained through the camera, and then the human posture and motion, the limb detection and tracking and the human skeleton key point data detection are fused with the animation in the game, so that the game of scenes such as sports and dancing is realized.

In another example, a user may interact with at least one other user in a karaoke application in video and voice. Figuratively, the function may be called "sing while looking". Preferably, when at least one user enters the application in a chat scenario, a plurality of users can jointly complete recording of a song.

In another example, a user may turn on a camera locally to take pictures and videos, figurative, which may be referred to as "looking into the mirror".

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 2 is a block diagram schematically showing the configuration of thecontrol apparatus 100 according to the exemplary embodiment. As shown in fig. 2, thecontrol device 100 includes acontroller 110, acommunicator 130, a user input/output interface 140, amemory 190, and apower supply 180.

Thecontrol apparatus 100 is configured to control thedisplay device 200, and to receive an input operation instruction from a user, and convert the operation instruction into an instruction recognizable and responsive by thedisplay device 200, and to mediate interaction between the user and thedisplay device 200. Such as: the user operates the channel up/down key on thecontrol device 100, and thedisplay device 200 responds to the channel up/down operation.

In some embodiments, thecontrol device 100 may be a smart device. Such as: thecontrol apparatus 100 may install various applications that control thedisplay device 200 according to user demands.

In some embodiments, as shown in fig. 1, themobile terminal 100B or other intelligent electronic device may function similar to thecontrol apparatus 100 after installing an application for manipulating thedisplay device 200. Such as: the user may implement the functions of controlling the physical keys of theapparatus 100 by installing applications, various function keys or virtual buttons of a graphical user interface available on themobile terminal 100B or other intelligent electronic devices.

Thecontroller 110 includes aprocessor 112, a RAM113 and a ROM114, a communication interface, and a communication bus. Thecontroller 110 is used to control the operation of thecontrol device 100, as well as the internal components for communication and coordination and external and internal data processing functions.

Thecommunicator 130 enables communication of control signals and data signals with thedisplay apparatus 200 under the control of thecontroller 110. Such as: the received user input signal is transmitted to thedisplay apparatus 200. Thecommunicator 130 may include at least one of aWIFI module 131, abluetooth module 132, anNFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of amicrophone 141, atouch pad 142, asensor 143, a key 144, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to thedisplay device 200.

The output interface includes an interface that transmits the received user instruction to thedisplay apparatus 200. In some embodiments, it may be an infrared interface or a radio frequency interface. Such as: 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 thedisplay 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 thedisplay device 200 through the rf transmitting terminal.

In some embodiments, thecontrol device 100 includes at least one of acommunicator 130 and an output interface. Thecommunicator 130 is configured in thecontrol device 100, such as: the WIFI module, the Bluetooth module, the NFC module and the like can encode the user input command through a WIFI protocol, a Bluetooth protocol or an NFC protocol and send the encoded user input command to thedisplay device 200.

And amemory 190 for storing various operation programs, data and applications for driving and controlling thecontrol apparatus 100 under the control of thecontroller 110. Thememory 190 may store various control signal commands input by a user.

And apower supply 180 for providing operational power support to the components of thecontrol device 100 under the control of thecontroller 110. A battery and associated control circuitry.

A hardware configuration block diagram of a hardware system in thedisplay apparatus 200 according to an exemplary embodiment is exemplarily shown in fig. 3.

When a dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in fig. 3. For convenience of description, one hardware system in the dual hardware system architecture will be referred to as a first hardware system or a system, a-chip, and the other hardware system will be referred to as a second hardware system or N-system, N-chip. The chip A comprises a controller of the chip A and various modules connected with the controller of the chip A through various interfaces, and the chip N comprises a controller of the chip N and various modules connected with the controller of the chip N through various interfaces. The chip a and the chip N may each have a relatively independent operating system, and the operating system of the chip a and the operating system of the chip N may communicate with each other through a communication protocol, which is as follows: the frame layer of the operating system of the a-chip and the frame layer of the operating system of the N-chip can communicate to transmit commands and data, so that two independent subsystems, which are associated with each other, exist in thedisplay device 200.

As shown in fig. 3, the a chip and the N chip may be connected, communicated and powered through a plurality of different types of interfaces. The interface type of the interface between the a chip and the N chip may include a General-purpose input/output (GPIO) interface, a USB interface, an HDMI interface, a UART interface, and the like. One or more of these interfaces may be used for communication or power transfer between the a-chip and the N-chip. For example, as shown in fig. 3, in the dual hardware system architecture, the N chip may be powered by an external power source (power), and the a chip may not be powered by the external power source but by the N chip.

In addition to the interface for connecting with the N chip, the a chip may further include an interface for connecting other devices or components, such as an MIPI interface for connecting a Camera (Camera) shown in fig. 3, a bluetooth interface, and the like.

Similarly, in addition to the interface for connecting with the N chip, the N chip may further include a VBY interface for connecting with a display screen TCON (Timer Control Register), and an i2S interface for connecting with a power Amplifier (AMP) and a Speaker (Speaker); and an IR/Key interface, a USB interface, a Wifi interface, a bluetooth interface, an HDMI interface, a Tuner interface, and the like.

The dual hardware system architecture of the present application is further described below with reference to fig. 4. It should be noted that fig. 4 is only an exemplary illustration of the dual hardware system architecture of the present application, and does not represent a limitation of the present application. In practical applications, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture of thedisplay device 200 according to fig. 3 is exemplarily shown in fig. 4. As shown in fig. 4, the hardware system of thedisplay device 200 may include an a chip and an N chip, and a module connected to the a chip or the N chip through various interfaces.

The N-chip may include atuner demodulator 220, acommunicator 230, anexternal device interface 250, acontroller 210, amemory 290, a user input interface, a video processor 260-1, an audio processor 260-2, adisplay 280, anaudio output interface 270, and a power supply. The N-chip may also include more or fewer modules in other embodiments.

Thetuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate an audio/video signal carried in a frequency of a television channel selected by a user and additional information (e.g., an EPG data signal) from a plurality of wireless or wired broadcast television signals. Depending on the broadcast system of the television signal, the signal path of thetuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received,tuner demodulator 220 may demodulate analog and/or digital signals.

Thetuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signals carried thereby, in accordance with the user selection, and as controlled by thecontroller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video signals after modulation and demodulation, and the television audio/video signals are input into thedisplay device 200 through theexternal device interface 250.

Thecommunicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: thecommunicator 230 may include aWIFI module 231, a bluetoothcommunication protocol module 232, a wired ethernetcommunication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

Thedisplay apparatus 200 may establish a connection of a control signal and a data signal with an external control apparatus or a content providing apparatus through thecommunicator 230. For example, the communicator may receive a control signal of theremote controller 100 according to the control of the controller.

Theexternal device interface 250 is a component for providing data transmission between the N-chip controller 210 and the a-chip and other external devices. The external device interface may be connected with 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.

Theexternal device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal is also referred to as HDMI251, a Composite Video Blanking Sync (CVBS) terminal is also referred to as AV252, an analog or digital component terminal is also referred to ascomponent 253, a Universal Serial Bus (USB)terminal 254, a Red Green Blue (RGB) terminal (not shown in the figure), and the like. The number and type of external device interfaces are not limited by this application.

Thecontroller 210 controls the operation of thedisplay device 200 and responds to the user's operation by running various software control programs (e.g., an operating system and/or various application programs) stored on thememory 290.

As shown in fig. 4, thecontroller 210 includes a read only memory RAM213, a random access memory ROM214, agraphics processor 216, aCPU processor 212, afirst interface 218, and a communication bus. The RAM213 and the ROM214, thegraphic processor 216, theCPU processor 212, and thefirst interface 218 are connected via a bus.

A ROM213 for storing instructions for various system boots. If thedisplay device 200 is powered on upon receipt of the power-on signal, theCPU processor 212 executes a system boot instruction in the ROM and copies the operating system stored in thememory 290 to the RAM214 to start running the boot operating system. After the start of the operating system is completed, theCPU processor 212 copies the various application programs in thememory 290 to the RAM214, and then starts running and starting the various application programs.

Agraphics processor 216 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operation unit and displaying the rendered result on thedisplay 280.

ACPU processor 212 for executing operating system and application program instructions stored inmemory 290. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, theCPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of thedisplay apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

The communication interfaces may include a first interface 218-1 through an nth interface 218-n. These interfaces may be network interfaces that are connected to external devices via a network.

Thecontroller 210 may control the overall operation of thedisplay apparatus 200. For example: in response to receiving a user command for selecting a UI object displayed on thedisplay 280, thecontroller 210 may perform an operation related to the object selected by the user command.

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to thedisplay apparatus 200 or a voice command corresponding to a voice spoken by the user.

Thememory 290 includes a memory for storing various software modules for driving and controlling thedisplay apparatus 200. Such as: various software modules stored inmemory 290, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like.

The basic module is a bottom layer software module for signal communication between hardware in thedisplay device 200 and sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management.

For example: the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling thedisplay 280 to display image content, and may be used to play information such as multimedia image content and UI interface. The communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, thememory 290 is also used to store received external data and user data, images of respective items in various user interfaces, and visual effect maps of the focus object, etc.

A user input interface for transmitting an input signal of a user to thecontroller 210 or transmitting a signal output from the controller to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may send an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by a user to the user input interface, and then the input signal is forwarded to the controller by the user input interface; alternatively, the control device may receive an output signal such as audio, video, or data output from the user input interface via the controller, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, a user may enter a user command on a Graphical User Interface (GUI) displayed on thedisplay 280, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 260-1 is configured to receive a 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 thedisplay 280.

Illustratively, the video processor 260-1 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 used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and 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, such as an image synthesizer, is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video picture after the zooming processing by the graphics 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, such as a 24Hz, 25Hz, 30Hz, or 60Hz video, into a 60Hz, 120Hz, or 240Hz frame rate, where the input frame rate may be related to a source video stream, and the output frame rate may be related to an update rate of a display. The input is realized in a common format by using a frame insertion mode.

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 adisplay 280 for receiving the image signal input from the video processor 260-1, displaying the video content and image, and displaying the menu manipulation interface. Thedisplay 280 includes a display component for presenting a picture and a driving component for driving the display of an image. The video content may be displayed from the video in the broadcast signal received by the tuner/demodulator 220, or from the video content input from the communicator or the external device interface. Thedisplay 280 simultaneously displays a user manipulation interface UI generated in thedisplay apparatus 200 and used to control thedisplay apparatus 200.

And, a driving component for driving the display according to the type of thedisplay 280. Alternatively, a projection device and projection screen may also be included, provided thatdisplay 280 is a projection display.

The audio processor 260-2 is configured to receive an audio signal, decompress and decode the audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, amplification and other audio data processing to obtain an audio signal that can be played in thespeaker 272.

Anaudio output interface 270 for receiving the audio signal output by the audio processor 260-2 under the control of thecontroller 210, wherein the audio output interface may include aspeaker 272 or an externalsound output terminal 274 for outputting to a generating device of an external device, such as: external sound terminal or earphone output terminal.

In other exemplary embodiments, video processor 260-1 may comprise one or more chip components. The audio processor 260-2 may also include one or more chips.

And, in other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips or may be integrated in one or more chips with thecontroller 210.

And a power supply for supplying power supply support to thedisplay apparatus 200 from the power input from the external power source under the control of thecontroller 210. The power supply may include a built-in power supply circuit installed inside thedisplay apparatus 200, or may be a power supply installed outside thedisplay apparatus 200, such as a power supply interface for providing an external power supply in thedisplay apparatus 200.

Similar to the N-chip, as shown in fig. 4, the a-chip may include acontroller 310, acommunicator 330, adetector 340, and amemory 390. A user input interface, a video processor, an audio processor, a display, an audio output interface may also be included in some embodiments. In some embodiments, there may also be a power supply that independently powers the A-chip.

Thecommunicator 330 is a component for communicating with an external device or an external server according to various communication protocol types. For example: thecommunicator 330 may include aWIFI module 331, a bluetoothcommunication protocol module 332, a wired ethernetcommunication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

Thecommunicator 330 of the a-chip and thecommunicator 230 of the N-chip also interact with each other. For example, theWiFi module 231 within the N-chip hardware system is used to connect to an external network, generate network communication with an external server, and the like. TheWiFi module 331 in the a-chip hardware system is used to connect to the N-chip WiFi module 231 without making a direct connection with an external network or the like, and the a-chip is connected to an external network through the N-chip. Therefore, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

Thedetector 340 is a component of the display device a chip for collecting signals of an external environment or interacting with the outside. Thedetector 340 may include alight receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system may further include animage collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

An external device interface 350, which provides a component for data transmission between thecontroller 310 and the N-chip or other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

Avideo processor 360 for processing the associated video signal.

Thecontroller 310 controls the operation of thedisplay device 200 and responds to the user's operation by running various software control programs stored on the memory 390 (e.g., using installed third party applications, etc.), and interacting with the N-chip.

As shown in fig. 4, thecontroller 310 includes a read only memory ROM313, a random access memory RAM314, agraphics processor 316, aCPU processor 312, acommunication interface 318, and a communication bus. The ROM313 and the RAM314, thegraphic processor 316, theCPU processor 312, and thecommunication interface 318 are connected via a bus.

A ROM313 for storing instructions for various system boots.CPU processor 312 executes system boot instructions in ROM and copies the operating system stored inmemory 390 to RAM314 to begin running the boot operating system. After the start of the operating system is completed, theCPU processor 312 copies various application programs in thememory 390 to the RAM314, and then starts running and starting various application programs.

TheCPU processor 312 is used for executing the operating system and application program instructions stored in thememory 390, communicating with the N chip, transmitting and interacting signals, data, instructions, etc., and executing various application programs, data and contents according to various interaction instructions received from the outside, so as to finally display and play various audio and video contents.

Thecommunication interface 318 is plural. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the N-chip via a network.

Thecontroller 310 may control the overall operation of thedisplay apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on thedisplay 280, thecontroller 210 may perform an operation related to the object selected by the user command.

Agraphics processor 316 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operation unit and displaying the rendered result on thedisplay 280.

Both theA-chip graphics processor 316 and the N-chip graphics processor 216 are capable of generating various graphics objects. In distinction, if application 1 is installed on the a-chip and application 2 is installed on the N-chip, thea-chip graphics processor 316 generates a graphics object when a user performs a command input by the user in application 1 at the interface of application 1. When a user makes a command input by the user at the interface of the application 2 and within the application 2, a graphic object is generated by thegraphic processor 216 of the N chip.

Fig. 5 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment.

As shown in fig. 5, thememory 390 of the a-chip and thememory 290 of the N-chip are used to store an operating system, an application program, contents, user data, and the like, respectively, and perform system operations for driving thedisplay device 200 and various operations in response to a user under the control of thecontroller 310 of the a-chip and thecontroller 210 of the N-chip. TheA-chip memory 390 and the N-chip memory 290 can include volatile and/or non-volatile memory.

Thememory 290 is specifically configured to store an operating program for driving thecontroller 210 in thedisplay device 200, and store various applications installed in thedisplay device 200, various applications downloaded by a user from an external device, various graphical user interfaces related to the applications, various objects related to the graphical user interfaces, user data information, and internal data of various supported applications. Thememory 290 is used to store system software such as an Operating System (OS) kernel, middleware, and applications, and to store input video data and audio data, and other user data.

Thememory 290 is specifically used for storing drivers and related data of the video processor 260-1 and the audio processor 260-2, thedisplay 280, thecommunicator 230, thetuning demodulator 220, the input/output interface, and the like.

In some embodiments,memory 290 may store software and/or programs representing software programs for an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions implemented by other programs (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

Thememory 290, for example, includes abroadcast receiving module 2901, achannel control module 2902, avolume control module 2903, animage control module 2904, adisplay control module 2905, a firstaudio control module 2906, an externalinstruction recognition module 2907, acommunication control module 2908, a light receiving module, apower control module 2910, anoperating system 2911, andother application programs 2912, a browser module, and so forth. Thecontroller 210 performs functions such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Thememory 390 includes a memory storing various software modules for driving and controlling thedisplay apparatus 200. Such as: various software modules stored inmemory 390, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like. Since the functions of thememory 390 and thememory 290 are similar, reference may be made to thememory 290 for relevant points, and thus, detailed description thereof is omitted here.

Illustratively, thememory 390 includes animage control module 3904, a secondaudio control module 3906, an externalinstruction recognition module 3907, acommunication control module 3908, alight receiving module 3909, anoperating system 3911, andother application programs 3912, a browser module, and the like. Thecontroller 210 performs functions such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Differently, the externalinstruction recognition module 2907 of the N-chip and the externalinstruction recognition module 3907 of the a-chip can recognize different instructions.

Illustratively, since the image receiving device such as a camera is connected with the a-chip, the externalinstruction recognition module 3907 of the a-chip may include an image recognition module 3907-1, a graphic database is stored in the image recognition module 3907-1, and when the camera receives an external graphic instruction, the camera corresponds to the instruction in the graphic database to perform instruction control on the display device. Since the voice receiving device and the remote controller are connected to the N-chip, the externalcommand recognition module 2907 of the N-chip may include a pattern recognition module 2907-1 and a voice recognition module 2907-2, a voice database is stored in the voice recognition module 2907-2, and when receiving an external voice command or the like, the voice receiving device, etc. performs a corresponding relationship with a command in the voice database to perform command control on the display device. Similarly, acontrol device 100 such as a remote controller is connected to the N-chip, and the key command recognition module 2907-3 performs command interaction with thecontrol device 100.

A block diagram of a configuration of a software system in adisplay device 200 according to an exemplary embodiment is exemplarily shown in fig. 6 a.

For an N-chip, as shown in fig. 6a, theoperating system 2911, including the executing operating software for handling various basic system services and for performing hardware related tasks, acts as an intermediary between applications and hardware components for data processing.

In some embodiments, portions of the operating system kernel may contain a series of software to manage the display device hardware resources and provide services to other programs or software code.

In other embodiments, portions of the operating system kernel may include one or more device drivers, which may be a set of software code in the operating system that assists in operating or controlling the devices or hardware associated with the display device. The drivers may contain code that operates the video, audio, and/or other multimedia components. Examples include a display, a camera, flash, wiFi, and audio drivers.

The accessibility module 2911-1 is configured to modify or access the application program to achieve accessibility and operability of the application program for displaying content.

A communication module 2911-2 for connection to other peripherals via associated communication interfaces and a communication network.

The user interface module 2911-3 is configured to provide an object for displaying a user interface, which is accessible by each application program and may implement user operability.

Control applications 2911-4 for controlling process management, including runtime applications and the like.

Theevent transmission system 2914 may be implemented in theoperating system 2911 or in theapplication 2912. In some embodiments, one aspect is implemented within theoperating system 2911, while implemented in theapplications 2912, for listening for various user input events, and the handlers that implement one or more predefined sets of operations in response to the recognition of various events or sub-events will be referred to in terms of various events.

The event monitoring module 2914-1 is configured to monitor an event or a sub-event input by the user input interface.

The event recognition module 2914-2 is used to input various event definitions for various user input interfaces, recognize various events or sub-events, and transmit them to the processes for executing their respective set or sets of handlers.

The event or sub-event refers to an input detected by one or more sensors in thedisplay device 200 and an input of an external control device (e.g., the control apparatus 100). Such as: the method comprises the following steps of inputting various sub-events through voice, inputting a gesture sub-event through gesture recognition, inputting a remote control key command of a control device and the like. Illustratively, the one or more sub-events in the remote control include a variety of forms including, but not limited to, one or a combination of key presses up/down/left/right/, ok keys, key presses, and the like. And non-physical key operations such as move, hold, release, etc.

The interfacelayout management module 2913, directly or indirectly receiving the input events or sub-events from theevent transmission system 2914, monitors the input events or sub-events, and updates the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the size, position, and level of the container, which are related to the layout of the interface.

Since the functions of theoperating system 3911 of the a chip are similar to those of theoperating system 2911 of the N chip, reference may be made to theoperating system 2911 for relevant points, and details are not repeated here.

As shown in fig. 6b, the application layer of the display device contains various applications that can be executed at thedisplay device 200.

The N-chip application layer 2912 may include, but is not limited to, one or more applications such as: a video-on-demand application, an application center, a game application, and the like. Theapplication layer 3912 of the a-chip may include, but is not limited to, one or more applications such as: live television applications, media center applications, and the like. It should be noted that what applications are respectively contained in the a chip and the N chip is determined according to an operating system and other designs, and the present invention does not need to make specific limitations and divisions on the applications contained in the a chip and the N chip.

The live television application program can provide live television through different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal ondisplay device 200.

A video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

The media center application program can provide various applications for playing multimedia contents. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

The application program center can provide and store various application programs. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be operable on thedisplay device 200.

A schematic view of a user interface in adisplay device 200 according to an exemplary embodiment is illustrated in fig. 7. As shown in fig. 7, the user interface includes a plurality of view display areas, illustratively, a firstview display area 201 and aplay screen 202, wherein the play screen includes a layout of one or more different items. And a selector in the user interface indicating that the item is selected, the position of the selector being movable by user input to change the selection of a different item.

It should be noted that the multiple view display areas may present display screens of different hierarchies. For example, a first view display area may present video chat project content and a second view display area may present application layer project content (e.g., web page video, VOD presentations, application screens, etc.).

Optionally, the different view display areas are presented with different priorities, and the display priorities of the view display areas are different among the view display areas with different priorities. If the priority of the system layer is higher than that of the application layer, when the user uses the acquisition selector and switches pictures in the application layer, the picture display of the view display area of the system layer is not blocked; and when the size and the position of the view display area of the application layer are changed according to the selection of the user, the size and the position of the view display area of the system layer are not influenced.

Since the a chip and the N chip may have independent operating systems installed therein, there are two independent but interrelated subsystems in thedisplay device 200. For example, android and various APPs can be independently installed on the chip a and the chip N, so that each chip can realize a certain function, and the chip a and the chip N cooperatively realize a certain function.

Generally, a dual hardware display device includes two chips, namely an a chip (which may also be referred to as a first chip in the embodiments of the present application) and an N chip (which may also be referred to as a second chip in the embodiments of the present application). The first chip is used for receiving audio and video data, and the audio and video data comprises: audio data and video signal, the A chip needs to transmit audio and video data to N chip, and N chip plays audio data transmission loudspeaker.

Due to the diversity of the source formats of the network audio data pieces, the A chip and the N chip are communicated through the HDMI port, and some audio data with special formats, such as audio data in the AC4 format, cannot pass through the HDMI port.

In order to solve the above technical problem, an embodiment of the present application illustrates a dual-hardware sound transmission method. Specifically, referring to fig. 8, the method according to the embodiment of the present application includes the following steps:

s101, a first chip receives audio and video data, wherein the audio and video data comprise audio data and video data;

s102, determining the format of the audio data

S103, responding to the fact that the audio data are in an AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port; wherein the second chip is configured to control the sound output of the speaker according to the audio data and control the audio-visual output of the display according to the video data.

In response to the audio data being in a non-AC 4 format, performing S104 the first chip sending the audio data and the video data to the second chip through a second port

According to the technical scheme shown in the embodiment of the application, a first chip and a second chip are connected through a first port and a second port; the first port is a network port, and the network port is used for sending audio and video data in an AC4 format and received by a third-party application installed on the first chip to the second chip.

The second port may be a USB port (Universal Serial Bus) or an HDMI port (High Definition Multimedia Interface). And the first chip phase second port sends audio and video to the second chip, and at the moment, audio data in the audio and video data is audio data in a non-AC 4 format. The HDMI port mainly sends audio and video data which are received by a third-party application installed on the first chip and are not in an AC4 format to the second chip, and the audio and video signals further comprise image information and the like collected by the camera. The signal received by the first chip is transmitted to the second chip through the HDMI port, and it should be noted that in the technical solution shown in the embodiment of the present application, the HDMI port is not open to a user. The USB is mainly used for transmitting image data of the camera to the second chip through the USB.

In the solution shown in the embodiment of the present application, in response to that the audio data is in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port. Since audio data and video data are transmitted by two ports, a problem of non-synchronization of the audio data and the video data may occur in some cases. In the technical scheme of the implementation of the application, the second chip is adopted to correspondingly adjust the audio data or the video data so as to achieve the purpose of synchronously playing the audio data and the video data. Referring to fig. 9, a specific adjustment process of the second chip may be performed, and the method further includes:

the connection channel between the first chip and the second chip comprises a first channel passing through the communication port;

s105, connecting channels between the first chip and the second chip comprise first channels passing through the communication ports; and the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

In a feasible embodiment, the first chip receives the audio/video data through the installed third party APP. The first chip firstly decodes and processes the received audio and video data to obtain audio data and video data. In response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the network port and sends the video data to the second chip through the second port. Otherwise, the first chip sends the audio data and the video data to the second chip through a second port.

In a feasible embodiment, the first chip further includes a communication port different from the port for inputting the audio/video, and the connection channel between the first chip and the second chip includes a first channel passing through the communication port; and the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

The communication port may be a UART (Universal Asynchronous Receiver/Transmitter), the first channel is a communication channel formed by connecting UART ports, and the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

The second chip starts a corresponding audio decoder to decode the audio data according to the audio code stream to obtain decoded audio data, and the decoded audio data are used for being output to a loudspeaker by the second chip; and starting a corresponding video decoder to decode the video data to obtain decoded video data, wherein the decoded video data are used for being output to a display screen by a second chip.

S106, the second chip starts a corresponding audio decoder to decode the audio data according to the audio code stream to obtain decoded audio data, and the second chip starts a video decoder to decode the audio data to obtain decoded video data.

The decoded audio data is used for being output to a loudspeaker by a second chip; and starting a corresponding video decoder to decode the video data to obtain decoded video data, wherein the decoded video data are used for being output to a display screen by a second chip.

S107, the second chip reads the audio time stamp of the decoded audio data and the video time stamp of the video data;

s108, the second chip compares the audio time stamp with the video time stamp to generate a delay difference;

s109 the second chip processes the output of the decoded audio data or the decoded video data based on the delay difference.

Specifically, (1) in response to the audio time lag being behind the video-audio timestamp, the second chip shuts down at least a portion of processing of the sound processing module to increase an output speed of the decoded audio data.

In a possible embodiment the second chip may switch off the audio delay unit in response to said audio time-lag being behind said video audio time-stamp. So that the sound processing module does not perform sound delay on the audio data received from the first chip, thereby improving the output speed of the decoded audio data and achieving the effect of sound and picture synchronization.

In a possible embodiment, the second chip may also turn off the sound effect processing unit in response to the audio time lag being behind the video audio time stamp. So that the sound processing module does not perform sound effect processing on the audio data received from the first chip, thereby improving the output speed of the decoded audio data and achieving the effect of sound and picture synchronization.

The audio delay unit is an audio delay parameter adjusting unit. The specific process of closing the audio delay unit is as follows: in response to the audio time lag being later than the video audio timestamp, the sound processing module adjusts the latency parameter corresponding to audiodelay to zero.

In a possible embodiment, the second chip may also turn off the audio delay unit and the sound effect processing unit in response to the audio time lag being behind the video audio time stamp. So that the sound processing module does not perform sound delay and sound effect processing on the audio data received from the first chip, thereby improving the output speed of the decoded audio data and achieving the effect of sound and picture synchronization.

(2) And in response to the audio time lag being behind the video and audio time stamp, the second chip adjusts the time delay parameter corresponding to the audio time delay unit to zero, so that the audio time delay unit does not delay the decoded audio data.

In response to the audio time lag being subsequent to the video audio timestamp, the audio delay unit adjusts a delay parameter corresponding to audiodelay to zero. So that the sound processing module does not perform sound delay on the audio data received from the first chip, thereby increasing the output speed of the decoded audio data and achieving the effect of 'sound and picture synchronization'.

(3) And in response to the video time lag being behind the audio time stamp, the second chip increases a delay parameter corresponding to an audio delay unit, so that the audio delay unit delays the decoded audio data, and the output speed of the decoded audio data is delayed, so that the effect of sound and picture synchronization is achieved.

(4) And responding to the audio time error to be later than the video audio time stamp, and enabling a video processing unit to perform frame interpolation processing on the decoded video data by the second core.

In response to the audio time lag being behind the video audio timestamp, the video processing unit sequentially determines a current frame of the frame to be interpolated video, a previous frame of the current frame, and a next frame of the current frame; inputting a current frame of a video to be interpolated, a previous frame of the current frame and a next frame of the current frame into a pre-generated video interpolation frame model, wherein the video interpolation frame model is generated by training a preset convolution neural network model by the current frame of a training set, the previous frame of the current frame and the next frame of the current frame; and performing frame interpolation on the video of the frame to be interpolated by the video frame interpolation model to obtain the video after frame interpolation. So as to delay the output speed of the decoded video data, thereby achieving the effect of sound-picture synchronization.

According to the technical scheme, a first chip receives audio and video data, wherein the audio and video data comprise audio data and video data; in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port; wherein the second chip is configured to control the sound output of the speaker according to the audio data and control the audio-visual output of the display according to the video data. The technical scheme shown in the embodiment of the application adopts different ports for transmitting audio data with different formats between the first chip and the second chip, so that the audio data with all formats can be transmitted between the first chip and the second chip, and the problem that the audio data with the AC4 format cannot be transmitted through an HDMI channel is effectively solved.

A second aspect of the embodiments of the present application shows a display device, and please refer to fig. 10, which includes:

a first chip provided with a first port and a second port;

a second chip communicatively connected to the first chip;

the loudspeaker is connected with the second chip;

the display is connected with the second chip;

the first chip is configured to receive input audio and video data, wherein the audio and video data comprises audio data and video data;

in response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the first port, and sends the video data to the second chip through the second port;

the second chip is configured to control sound output of the speaker according to the audio data and control audio-video output of the display according to the video data.

According to the technical scheme shown in the embodiment of the application, a first chip and a second chip are connected through a first port and a second port; the first port is a network port, and the network port is used for sending audio and video data in an AC4 format, which are received by a third-party application installed on the first chip, to the second chip.

The second port may be a USB port (Universal Serial Bus) or an HDMI port (High Definition Multimedia Interface). And the first chip phase second port sends audio and video to the second chip, and at the moment, audio data in the audio and video data is audio data in a non-AC 4 format. The HDMI port mainly sends audio and video data which are received by a third-party application installed on the first chip and are not in an AC4 format to the second chip, and the audio and video signals further comprise image information and the like collected by the camera. The signal received by the first chip is transmitted to the second chip through the HDMI port, and it should be noted that in the technical solution shown in the embodiment of the present application, the HDMI port is not open to a user. The USB is mainly used for transmitting the image data of the camera to the second chip through the USB.

In a possible embodiment, the first chip receives the audio/video data through an installed third party APP. The first chip firstly decodes and processes the received audio and video data to obtain audio data and video data. In response to the audio data being in the AC4 format, the first chip sends the audio data to the second chip through the network port and sends the video data to the second chip through the second port. Otherwise, the first chip sends the audio data and the video data to the second chip through a second port.

The first chip further comprises a communication port different from the port for inputting the audio and video, and a connecting channel between the first chip and the second chip comprises a first channel passing through the communication port; and the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

The communication port may be a UART (Universal Asynchronous Receiver/Transmitter), the first channel is a communication channel formed by connecting UART ports, and the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

The second chip starts a corresponding audio decoder to decode the audio data according to the audio code stream to obtain decoded audio data, and the decoded audio data are used for being output to a loudspeaker by the second chip; and starting a corresponding video decoder to decode the video data to obtain decoded video data, wherein the decoded video data are used for being output to a display screen by a second chip.

It should be understood that the terms "first," "second," "third," and the like in the description and in the claims of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances and can be implemented in sequences other than those illustrated or otherwise described herein with respect to the embodiments of the application, for example.

Furthermore, the terms "comprises" and "comprising," and any variations thereof, 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.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims (7)

1. A sound processing method applied to a display device including a first chip, a second chip connected to the first chip, and a speaker connected to the second chip, the method comprising:

the method comprises the steps that a first chip receives audio and video data, wherein the audio and video data comprise audio data and video data;

in response to the audio data being in an AC4 format, the first chip sending the audio data through a first port, the first port being a port supporting the audio data in the AC4 format;

in response to the audio data being in a non-AC 4 format, the first chip sending the audio data through a second port, the second port being a port that supports the video data and the audio data in a non-AC 4 format;

transmitting the video data through a second port;

the second chip comprises an audio decoder and a video decoder, and is configured to receive the audio data and the video data sent by the first chip, start the audio decoder to decode the audio data to obtain decoded audio data, the decoded audio data is used for being output to a speaker by the second chip, control sound output of the speaker according to the audio data, start the video decoder to decode the video data to obtain decoded video data, the decoded video data is used for being output to a display by the second chip, control audio and video output of the display according to the video data, read an audio time stamp of the decoded audio data and a video time stamp of the video data by the second chip, compare the audio time stamp and the video time stamp to generate a delay difference, and process the output of the decoded audio data or the decoded video data by the second chip based on the delay difference.

2. The method according to claim 1, wherein the first chip is further provided with a communication port, and the connection channel between the first chip and the second chip comprises a first channel passing through the communication port; and the first chip sends an audio code stream corresponding to the audio data to the second chip through the first channel.

3. The method of claim 1, wherein the second chip processing the output of the decoded audio data or the decoded video data based on the delay difference comprises:

in response to the audio time lag being later than the video-audio time stamp, the second chip closes at least a portion of a processing process of a sound processing module to increase an output speed of the decoded audio data.

4. The method of claim 1, wherein the second chip processing the decoded audio data or the decoded video data based on the delay difference comprises:

and in response to the audio time lag being behind the video and audio time stamp, the second chip adjusts the time delay parameter corresponding to the audio time delay unit to zero, so that the audio time delay unit does not delay the decoded audio data.

5. The method of claim 1, wherein the second chip processing the decoded audio data or the decoded video data based on the delay difference comprises:

and responding to the audio time lag behind the video audio time stamp, and starting a video processing unit by the second chip to perform frame interpolation processing on the decoded video data.

6. The method of claim 1, wherein the second chip processing the decoded audio data or the decoded video data based on the delay difference comprises:

and in response to the video time lag being behind the audio time stamp, the second chip increases a delay parameter corresponding to an audio delay unit, so that the audio delay unit performs delay processing on the decoded audio data.

7. A display device, comprising:

a first chip provided with a first port and a second port;

a second chip communicatively connected to the first chip;

the loudspeaker is connected with the second chip;

the display is connected with the second chip;

the first chip is configured to receive input audio and video data, wherein the audio and video data comprises audio data and video data;

in response to the audio data being in an AC4 format, the first chip sending the audio data through a first port, the first port being a port supporting the audio data in the AC4 format;

in response to the audio data being in a non-AC 4 format, the first chip sending the audio data through a second port, the second port being a port that supports the video data and the audio data in a non-AC 4 format;

transmitting the video data through a second port;

the second chip comprises an audio decoder and a video decoder, and is configured to receive the audio data and the video data sent by the first chip, start the audio decoder to decode the audio data to obtain decoded audio data, the decoded audio data is used for being output to a speaker by the second chip, control sound output of the speaker according to the audio data, start the video decoder to decode the video data to obtain decoded video data, the decoded video data is used for being output to a display by the second chip, control audio and video output of the display according to the video data, read an audio time stamp of the decoded audio data and a video time stamp of the video data by the second chip, generate a delay difference by comparing the audio time stamp with the video time stamp, and process the output of the decoded audio data or the decoded video data by the second chip based on the delay difference.

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