CN112073788B

CN112073788B - Video data processing method and device and display equipment

Info

Publication number: CN112073788B
Application number: CN201910893604.6A
Authority: CN
Inventors: 王之奎; 李永罡; 刘金刚
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-06-10
Filing date: 2019-09-20
Publication date: 2023-04-14
Anticipated expiration: 2039-09-20
Also published as: CN112073788A; WO2020248680A1

Abstract

The application provides a video data processing method, a video data processing device and a display device, wherein the display device comprises a first chip and a second chip which are connected through an HDMI line, and the display content of the first chip needs to be transmitted to the second chip through the HDMI line for display. When the current frame display content to be transmitted to the second chip by the first chip contains the graphics layer data, the identification information containing the graphics layer data is added to the HDMI information packet, and the HDMI information packet and the current frame display content are sent to the second chip. Based on the characteristics of the HDMI information packet, the HDMI information packet added with the identification information can follow the content to be displayed of each frame to be sent to the second chip. In this way, the second chip can know whether each frame of content to be displayed received by the second chip contains the OSD layer by analyzing the content in the HDMI packet, so as to perform corresponding signal processing.

Description

Video data processing method and device and display equipment

Technical Field

The present invention relates to display technologies, and in particular, to a method and an apparatus for processing video data, and a display device.

Background

For the convenience of users, an HDMI (High Definition Multimedia Interface) Interface is usually provided on a television at present. Therefore, external equipment with an operating system, such as the intelligent set top box and the 4K host, can be accessed into the television through the HDMI interface.

When the external device is used, the video data of the external device is transmitted to a main chip of the television through an HDMI channel, and then the main chip in the television performs corresponding image quality processing, such as motion compensation processing, on the video data and displays the video data on a screen end of the television. However, when the data transmitted by the external device includes both a video layer and an OSD (On Screen display, on Screen menu adjustment mode) layer, based On the characteristics of the HDMI data transmission protocol, the video layer and the OSD layer data are mixed and superimposed and then transmitted to the main chip of the tv, and the main chip of the tv cannot distinguish whether the video data includes an OSD layer, and then the video data continues to be motion compensated. However, since the drawing mechanisms of the OSD layer data and the video layer data are different, the OSD layer data does not need to be motion compensated, so if the OSD image signal and the video signal are mixed and superimposed and then are subjected to motion compensation processing, the motion vector is the motion vector for superimposing the video signal and the OSD layer signal, and the OSD layer picture is deformed and broken at the moment.

Therefore, it is desirable to provide a new video data processing method, so that the tv can identify whether the video data received via the HDMI interface contains OSD layer data.

Disclosure of Invention

In view of the foregoing problems, embodiments of the present application provide a method and an apparatus for processing video data, and a display device, so that a main chip of a television identifies whether video data received through an HDMI interface includes OSD layer data.

According to a first aspect of the embodiments of the present application, a video data processing method is provided, where the video data processing method is used for a first chip and a second chip, the first chip and the second chip are connected through an HDMI line, and display content of the first chip is transmitted to the second chip through the HDMI line for display, and the method includes:

the first chip judges whether the display content of the current frame contains graphic layer data or not;

if the HDMI information packet contains the graphics layer data, the first chip adds the identification information containing the graphics layer data to the HDMI information packet;

and the first chip sends the HDMI information packet and the current frame display content to a second chip.

According to a second aspect of embodiments of the present application, there is provided a video data processing apparatus, the apparatus being provided in a first chip, including a memory and a processor, wherein:

the memory for storing program code;

the processor is configured to read the program code stored in the memory, and execute the method according to the first aspect of the embodiment of the present application.

According to a third aspect of the embodiments of the present application, there is provided a display device, including a first chip and a second chip, where the first chip and the second chip are connected by an HDMI line, display content of the first chip is transmitted to the second chip for display through the HDMI line, and the first chip is configured to:

judging whether the display content of the current frame contains graphics layer data or not;

if the graphics layer data is contained, the identification information containing the graphics layer data is added into an HDMI information packet;

and sending the HDMI information packet and the current frame display content to a second chip.

As can be seen from the foregoing embodiments, in the video data processing method, the video data processing apparatus, and the display device provided in the embodiments of the present application, when the current frame display content to be transmitted to the second chip by the first chip contains graphics layer data, the identification information containing the graphics layer data is added to the HDMI packet, and the HDMI packet and the current frame display content are sent to the second chip. Based on the characteristics of the HDMI information packet, the HDMI information packet added with the identification information can follow the content to be displayed of each frame and is sent to the second chip. In this way, the second chip can know whether each frame of content to be displayed received by the second chip contains the OSD layer by parsing the content in the HDMI packet, so as to perform corresponding processing, for example, turning off the motion compensation processing when the OSD layer is contained, so as to prevent the graphics layer signal from being torn during the motion compensation process.

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 description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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 the control apparatus 100 according to the embodiment;

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

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

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

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

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

fig. 7 schematically illustrates a user interface in the display device 200 according to an embodiment;

fig. 8 is a flow chart illustrating a video data processing method;

fig. 9 is a schematic diagram illustrating a processing flow of a video layer signal and a graphics layer signal by a first chip;

FIG. 10 illustrates a display scheme corresponding to the method of FIG. 8;

fig. 11 is a flow chart illustrating another video data processing method;

a schematic of a frame picture is exemplarily shown in fig. 12;

a flow chart of yet another video data processing method is schematically shown in fig. 13.

Detailed Description

To make the objects, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.

The present application relates to a display terminal including at least two system-on-chip, and for ease of understanding, a display terminal of a multi-chip structure is described herein.

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 that receives 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 of the present application will be described first 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 the 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 various 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 components may generally 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 behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

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 the display apparatus 200 through the control device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display 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 the display device 200 through a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

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

For example, the mobile terminal 100B and the display 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 the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio and video contents displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

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

Illustratively, the display 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. The servers 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 the server 300.

The display 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 the display device 200 may be modified in performance and configuration as desired.

The display 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, a camera may be connected or disposed on the display device, and is used 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 ten thousand pixels may also be used.

After the camera is installed on the display device, the contents displayed by different application scenes of the display device can be fused in various different modes, so that the function which cannot be realized by the traditional display device 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. The function is called '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 can conduct a video chat with at least one other user while entering the educational application for learning. For example, a student may interact remotely with a teacher while learning content in an educational application. Vividly, this function can be called "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. Vividly, this function can be called "sing while watching". 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 a configuration of the control apparatus 100 according to the exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

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

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

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

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

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 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 the display device 200.

The output interface includes an interface that transmits the received user instruction to the display 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 the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The communicator 130 is configured in the control device 100, such as: the modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

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

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

A hardware configuration block diagram of a hardware system in the display 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 is referred to as a first hardware system or a system, a chip, and the other hardware system is 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 the display device 200.

As shown in fig. 3, the a chip and the N chip can 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 actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture of the display device 200 according to fig. 3 is exemplarily shown in fig. 4. As shown in fig. 4, the hardware system of the display 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 a tuner demodulator 220, a communicator 230, an external device interface 250, a controller 210, a memory 290, a user input interface, a video processor 260-1, an audio processor 260-2, a display 280, an audio output interface 272, and a power supply. The N-chip may include more or fewer modules in other embodiments.

The tuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, frequency mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., an EPG data signal). Depending on the broadcast system of the television signal, the signal path of the tuner 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.

The tuner 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 the controller 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 the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 230 may include a WIFI module 231, a bluetooth communication protocol module 232, a wired ethernet communication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The display 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 the communicator 230. For example, the communicator may receive a control signal of the remote controller 100 according to the control of the controller.

The external 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.

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal 251, a Composite Video Blanking Sync (CVBS) terminal 252, an analog or digital component terminal 253, a Universal Serial Bus (USB) terminal 254, a red, green, blue (RGB) terminal (not shown), and the like. The number and type of external device interfaces are not limited by this application.

The controller 210 controls the operation of the display 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 the memory 290.

As shown in fig. 4, the controller 210 includes a read only memory RAM213, a random access memory ROM214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The RAM213 and the ROM214, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a bus.

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

A graphics 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 operator and displaying the rendered result on the display 280.

A CPU processor 212 for executing operating system and application program instructions stored in memory 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, the CPU 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 the display 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.

The controller 210 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object displayed on the display 280, the controller 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 of connecting to a hyperlink page, document, image, etc., 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 the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

The memory 290 includes a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 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 used for signal communication between hardware in the display 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 the display 280 to display image contents, and may be used to play information such as multimedia image contents and UI interfaces. The communication module is used for carrying out control and data communication with external equipment. The browser module is a module for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

A user input interface for transmitting an input signal of a user to the controller 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 the display 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 the display 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 is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert a frame rate of an input video, 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 a display 280 for receiving the image signal input from the video processor 260-1 and displaying the video content and image and the menu manipulation interface. The display 280 includes a display component for presenting a picture and a driving component for driving image display. 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. And a display 220 simultaneously displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And, according to the type of the display 280, a driving component for driving the display is further included. Alternatively, in case the display 280 is a projection display, it may also comprise a projection device and a projection screen.

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 the speaker 272.

An audio output interface 270 for receiving the audio signal output from the audio processor 260-2 under the control of the controller 210, which may include a speaker 272 or an external audio 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 the controller 210.

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

Similar to the N-chip, as shown in fig. 4, the a-chip may include a controller 310, a communicator 330, a detector 340, and a memory 390. A video processor 360, a user input interface, 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.

The communicator 330 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 330 may include a WIFI module 331, a bluetooth communication protocol module 332, a wired ethernet communication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The communicator 330 of the a-chip and the communicator 230 of the N-chip also interact with each other. For example, the WiFi 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. The WiFi 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.

The detector 340 is a component of the display device a chip for collecting signals of an external environment or interacting with the outside. The detector 340 may include a light 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 an image 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 the controller 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.

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

As shown in fig. 4, the controller 310 includes a read only memory ROM313, a random access memory RAM314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM313 and the RAM314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected by 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 in memory 390 to RAM314 to begin running the boot operating system. After the start of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM314, and then starts running and starting various application programs.

The CPU processor 312 is used for executing the operating system and application program instructions stored in the memory 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.

The communication interfaces may include a first interface 318-1 through an nth interface 318-n. 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.

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

A graphics 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 the display 280.

Both the A-chip graphics processor 316 and the N-chip graphics processor 216 are capable of generating various graphics objects. Distinctively, if application 1 is installed on the a-chip and application 2 is installed on the N-chip, the a-chip graphics processor 316 generates a graphics object when a user performs a user-entered command within 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 the graphic 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, the memory 390 of the a-chip and the memory 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 the display device 200 and various operations in response to a user under the control of the controller 310 of the a-chip and the controller 210 of the N-chip. The A-chip memory 390 and the N-chip memory 290 may include volatile and/or non-volatile memory.

The memory 290 is specifically configured to store an operating program for driving the controller 210 in the display device 200, and store various applications installed in the display 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. The memory 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.

The memory 290 is specifically used for storing drivers and related data such as the video processor 260-1 and the audio processor 260-2, the display 280, the communication interface 230, the tuner demodulator 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing 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.

The memory 290, for example, includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, an audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module 2909, a power control module 2910, an operating system 2911, and other applications 2912, a browser module, and the like. The controller 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.

The memory 390 includes a memory storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 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 the memory 390 and the memory 290 are similar, reference may be made to the memory 290 for relevant points, and thus, detailed description thereof is omitted here.

Illustratively, the memory 390 includes an image control module 3904, an audio control module 3906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and other application programs 3912, a browser module, and the like. The controller 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.

Distinctively, the external instruction recognition module 2907 of the N-chip and the external instruction recognition module 3907 of the a-chip can recognize different instructions.

For example, since an image receiving device such as a camera is connected to the a-chip, the external instruction identifying module 3907 of the a-chip may include an image identifying module 3907-1, a graphic database is stored in the image identifying 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 external command recognition module 2907 of the N chip may include a voice recognition module 2907-2, a voice database is stored in the voice recognition module 2907-2, and when the voice receiving device receives an external voice command or the like, the voice receiving device corresponds to a command in the voice database to perform command control on the display device. Similarly, the control device 100 such as a remote controller is connected to the N-chip, and the button command recognition module 2907-3 performs command interaction with the control device 100.

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

For an N-chip, as shown in fig. 6a, the operating system 2911, includes executing operating software for handling various basic system services and for performing hardware related tasks.

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 driver may contain code to operate 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 of the application program and operability of the displayed 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.

The event transmission system 2914 may be implemented in the operating system 2911 or in the application 2912. In some embodiments, an aspect is implemented within the operating system 2911, while implemented in the application 2912, for listening for various user input events, and will implement one or more sets of predefined operations in response to various events referring to the recognition of various types of events or sub-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 the display 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 instruction 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 interface layout management module 2913, directly or indirectly receiving the input event or sub-event from the event 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, and other various execution operations related to the layout of the interface.

Since the functions of the operating system 3911 of the a chip are similar to those of the operating system 2911 of the N chip, reference may be made to the operating 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 the display device 200.

The N-chip application layer 2912 may include, but is not limited to, one or more applications such as: video on demand applications, application centers, gaming applications, and the like. The application 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 on display device 200.

A video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides video displays 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 the display device 200.

A schematic diagram of a user interface in a display 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 first view display area 201 and a play 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 in different levels. 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 picture switching 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.

The display frames of the same hierarchy can also be presented, at this time, the selector can switch between the first view display area and the second view display area, and when the size and the position of the first view display area are changed, the size and the position of the second view display area can be changed along with the change.

Since the a chip and the N chip may have independent operating systems installed therein, there are two independent but interrelated subsystems in the display 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 cooperate to realize a certain function.

For example, in the practical application process, both the first chip (the technical solution shown in the embodiment of the present application is also referred to as an a chip) and the second chip (the technical solution shown in the embodiment of the present application is also referred to as an N chip) can be used for receiving video signals. Wherein the video signal comprises: a network video signal derived from a network medium, a cable video signal derived from a broadcast television network, and a pre-stored local video signal. In a specific application, the first chip is configured to receive a network video signal and a local video signal. The second chip is used for receiving the network video signal, the local video signal and the wired video signal transmitted by the first chip, correspondingly processing the received signals and then outputting the processed signals to the display screen for displaying.

Take the first chip for receiving the network video signal as an example. Generally, a network video signal includes: a video layer signal. The first chip is provided with a graphic layer signal generator, the graphic layer signal generator generates a corresponding graphic layer signal according to the requirement while receiving the network video signal, and at the moment, the video layer signal and the graphic layer signal exist in the first chip at the same time. The first chip needs to synthesize the video layer signal and the graphic layer signal into content to be displayed and send the content to the second chip. And the second chip processes the video layer signal and the graphic layer signal and then sends the processed signals to a display screen of the display equipment for display. In order to ensure smooth display, the second chip generally needs to perform image processing on the received video signal, such as: and (5) motion compensation processing.

In the process of motion compensation, because the video layer signals are all signals with certain motion vectors, if the motion compensation technology is only applied to the video layer signals, the video layer signals are smoother and have no obvious jitter phenomenon. However, if the signal received by the second chip is the display content of the current frame generated by superimposing the video layer signal and the graphics layer signal, the graphics layer data in the motion compensation frame must have a pixel point movement compared with the corresponding areas of the two previous and next frames of graphics layer data. In this embodiment, the first chip and the second chip are connected by an HDMI cable, and according to an HDMI protocol, the video layer signal and the graphics layer signal cannot be transmitted simultaneously in an HDMI channel, so that the first chip can mix the video layer signal and the graphics layer signal, encode the mixed signal into a content to be displayed according to the HDMI protocol, and transmit the content to the second chip. Therefore, the second chip cannot distinguish whether the received content to be displayed contains the graphics layer data, and if the motion compensation processing is continuously performed on the content to be displayed containing the graphics layer data, the picture in the area corresponding to the graphics layer data is torn.

Based on this problem, the present embodiment provides a video data processing method. A flow diagram of a video data processing method is schematically illustrated in fig. 8. As shown in fig. 8, the method mainly includes the following steps:

s801, the first chip judges whether the current frame display content contains graphics layer data.

Before the video layer signal and the graphics layer signal are superposed to generate a video image signal, namely the display content of the current frame, the detection of whether the graphics layer signal is contained can be carried out. In this embodiment, the video layer signal may be a video signal or an image signal.

Fig. 9 is a schematic diagram illustrating a processing flow of the first chip for the video layer signal and the graphics layer signal. As shown in fig. 9, the first chip is configured to receive a video layer signal, where the video layer signal may be a video signal derived from a network medium or a local medium, or may also be an image signal derived from a network medium or a local medium, and specifically, may include video programs such as a network movie, a television show, news, a variety program, and an advertisement; the method also comprises video programs such as self-shooting Dv short films, video chatting, video games and the like. In this embodiment, the graphics layer signal is also referred to as an OSD (on screen menu adjustment mode). The graphics layer signal is derived from a graphics layer signal generator provided inside the first chip. The graphic layer signal mainly comprises user settings, a prompt menu, a third-party application graphic layer and the like, and is controlled and realized by a surface finger service (also called as a graphic layer signal generator) in an android system. Each graphics layer signal may be referred to as a surface, each surface having basic elements of content, size, location coordinates, and transparency. The first chip may determine position information of the graphics layer data in the basic element, where the position information is size information and position coordinate information of the surface, and the size information and the position coordinate information correspond to the size and the position coordinate of the basic element, respectively.

Therefore, the present embodiment determines whether the display content of the current frame includes the graphics layer data according to the data output by the surface finger before the graphics layer signal is superimposed on the video signal from the network media or the local media. If so, step S802 is performed. Otherwise, the HDMI packet may be added with identification information that does not include the graphics layer, or optionally, no information may be added to the HDMI packet.

S802, if the graphics layer data is contained, the first chip adds the identification information containing the graphics layer data to an HDMI information packet.

The HDMI packet (or referred to as Info Frame Type code) belongs to an auxiliary data category, and is used for various characteristics of the image to be transmitted, such as encoding (RGB/YCbCr), scanning mode (Overscan/Underscan), display ratio (16/4:3), pixel repetition rate, etc. at the high-speed receiving end. This embodiment uses two packets, SPD (source product description) and NVBI (NTSC VBI, an abbreviation of National Television Standards Committee for NTSC, VBI is the time for Vertical scan completion from the bottom of the screen to the top of the screen during tv processing, which is said VBI is used to be the time for Vertical scan completion from the bottom of the screen to the top of the screen) in the HDMI protocol. The two packets are reserved packets, and the two packets will be sent following each frame of display content, so the embodiment adds the information containing the graphics layer data to the HDMI packet, and can transmit the graphics layer information of each frame of display content in real time. For example, an OSD flag indicating whether or not OSD is included is set in the HDMI packet, where OSD flag =1 represents graphics layer data, and OSD flag =0 represents no OSD layer data.

And S803, the first chip sends the HDMI information packet and the current frame display content to a second chip.

The second chip is used as an HDMI signal receiving end, and after the HDMI packet is analyzed, information related to a graphic layer can be obtained, so that different display processing mechanisms are adopted in a targeted manner, and further, a picture effect is controlled more accurately. Fig. 10 shows an exemplary display scheme according to the method in fig. 8. As shown in fig. 10, when the OSD flag =0, it represents that there is no OSD layer data, and the second chip may perform video signal processing according to the original video display mechanism; when the OSD flag =1 indicates that the graphics layer data is present, the second chip may perform signal processing according to an OSD display mechanism, for example, directly turn off the motion compensation processing, so as to prevent the graphics layer signal from being torn during the motion compensation process.

Therefore, the second chip can know whether each frame of video data received by the second chip contains the OSD layer or not by analyzing the content in the HDMI information packet so as to perform corresponding processing.

Further, since the OSD layer created most of the time does not occupy the entire screen but is distributed in one or several small areas of the screen, if the second chip directly turns off the motion compensation process, the problem of output picture jitter may occur, and therefore, in order to ensure the quality of the video image output by the television, the embodiment further provides another video data processing method.

A flow diagram of another video data processing method is illustrated in fig. 11. As shown in fig. 11, the method mainly includes the following steps:

s1101, the first chip judges whether the display content of the current frame contains graphics layer data.

S1102, if the graphic layer data is contained, the first chip acquires the position information of the graphic layer corresponding to the graphic layer data in the current frame display content.

The position information includes size information and position coordinate information of the surface, which respectively correspond to the size of the basic element, such as height and width information of the graphic layer, and position coordinates, such as coordinates of a certain vertex of the graphic layer corresponding to the graphic layer data. Or the coordinate information of a first vertex and the coordinate information of a second vertex of the graph layer, wherein the first vertex and the second vertex are opposite angles of the graph layer. Therefore, the television main chip can know the relative position and the relative area of each graphic layer in the video layer corresponding to the display content of the current frame.

S1103, the first chip adds the position information and the identification information containing the graphic layer data to the HDMI information packet.

Based on that the SPD and NVBI both have 27 Bytes and the content of OSD layer position information, in this embodiment, 1 byte of identification information for identifying the existence of a graphics layer in the HDMI packet and 12 Bytes of position information of each graphics layer are occupied, as shown below:

of course, the setting mode is not limited, and the OSD information may be clipped according to actual needs, for example, the flag bit for identifying the existence of the graphics layer may not be set, and only the flag bit for identifying the location information of the graphics layer may be set.

And S1104, the first chip sends the HDMI information packet and the current frame display content to a second chip.

S1105, the second chip performs motion compensation on the image of the current frame display content except the area corresponding to the position information, and does not perform motion compensation on the image of the area corresponding to the position information in the current frame display content.

Specifically, the second chip determines a first area corresponding to the graphics layer signal in the current frame display content according to the received position information, and determines a second area outside the first area in the current frame display content; and performing motion compensation on the image of the second area.

Fig. 12 may be referred to for a process of determining the first region. A schematic diagram of a frame picture is exemplarily shown in fig. 12. The position information sent by the first chip is (m, n, w, h), wherein the picture size information of the graphic layer signal is (w, h), and the position coordinate information is (m, n). The second chip determines the position of the picture of the graphic layer signal according to the position coordinate information (m, n), then determines the area occupied by the picture of the graphic layer signal in the frame picture of the current frame display content as the first area according to the size information (w, h) of the picture of the graphic layer signal, then removes the remaining area of the picture of the graphic layer signal in the frame picture of the current frame display content as the second area, and performs motion compensation on the image of the second area. Of course, the position information transmitted by the first chip may be in the form of position coordinate information of two diagonal vertices, or the like, in addition to the above-described form.

Further, the process of performing motion compensation on the image of the second area specifically includes: the motion compensation module in the second chip performs motion compensation on the pixel points in the second area by filtering out the pixel points corresponding to the area (the first area) occupied by the picture of the graphic layer signal without performing motion vector calculation and inserting a compensation frame in the area.

As can be seen, in this embodiment, the first chip first determines the position information of the graphics layer signal, and converts the graphics layer signal and the video layer signal into the current frame display content after superimposing them, and then sends the position information together with the current frame display content to the second chip in the form of an HDMI data packet. The second chip carries out motion compensation on the image except the area corresponding to the position information in the display content of the current frame, and the second chip splices the image after the motion compensation and the image of the graphic layer signal to generate an image to be displayed. The mixed compensation frame is inserted between the current frame video picture and the last frame (or the next frame) video picture, and further, the problem that the graph layer signal is torn in the motion compensation process can be avoided.

In practical applications, the first area corresponding to the position information is generated based on the resolution (also referred to as input resolution in this embodiment) of the video layer signal received by the first chip. The second area is calculated based on the resolution of the display screen (also referred to as the display resolution in the embodiments of the present application). In the process of video playing, the situation that the input resolution is inconsistent with the display resolution is often accompanied. For example: the input resolution of a network video is 1920 × 1080, but the corresponding display resolution is different according to the difference of the display screen performance. The display resolution of the 4K display screen is 3840 × 2160. The display resolution of FHD (Full High Definition) displays is typically only 1920 x 1080. If N chips and FHD (Full High Definition) display screen, the input resolution and the display resolution are not consistent. In general, the inconsistency between the input resolution and the display resolution may result in inaccuracy of the calculation result of the second region.

The following describes the problems caused by the inconsistency between the input resolution and the display resolution in detail with reference to the specific embodiments. For a 4K display screen, if the input resolution of the network video is 1920 × 1080, the position information sent by the first chip is (0,0, 20, 30), and correspondingly, the size information of the picture of the graphics layer signal is (20,30), and the position coordinate information is (0,0). In the video signal having the resolution of 1920 × 1080, the size information of the picture of the graphics layer signal is (20,30). However, in the process of playing the video, the resolution of the video signal needs to be converted into the resolution of the display screen. The resolution of the converted frame pictures was 3840 × 2160. At this time, it is apparently inaccurate to determine the second area on the frame picture of 3840 × 2160 resolution based on the size information of the picture of the graphics layer signal being (20,30), and the position coordinate information (0,0).

In order to guarantee the accuracy of the second region. Before the motion compensation, the position information sent by the first chip may be scaled according to the corresponding relationship between the resolution of the video layer signal and the resolution of the display screen, and then the second area may be determined according to the scaled position information. Or, determining a first region corresponding to the position information in the current frame display content; the second chip determines a second area outside the first area in the display content of the current frame; and then performing scaling processing on the second area based on a correspondence between the resolution of the video layer signal and the resolution of the display screen and a correspondence between the resolution of the display screen.

In the first case, the second chip firstly judges whether the resolution of the video layer signal is consistent with the resolution of the display screen; and if the image motion compensation is not consistent, the second chip performs scaling processing on the position information and the current frame display content according to the corresponding relation between the resolution of the display screen and the resolution of the video layer signal to generate adjusted position information and adjusted current frame display content, and performs motion compensation on the image of the adjusted current frame display content except for the area corresponding to the adjusted position information. For the second case, the second chip determines a first area corresponding to the position information in the display content of the current frame; the second chip determines a second area outside the first area in the display content of the current frame; the second chip judges whether the resolution of the video layer signal is consistent with the resolution of the display screen; and if the resolution ratio of the display screen is inconsistent with the resolution ratio of the video layer signal, carrying out scaling processing on the second area according to the corresponding relation between the resolution ratio of the display screen and the resolution ratio of the video layer signal.

Therefore, the problem that the calculation result of the dynamic compensation area is inaccurate due to the fact that the resolution of the video layer signal is inconsistent with the resolution of the display screen can be avoided.

And finally, the second chip splices the image of the second area after motion compensation with the image of the first area to generate the current frame display content after motion compensation, and outputs the current frame display content to a display screen for display.

In this embodiment, the calculated compensation frame is mixed with the corresponding area of the OSD layer to obtain the motion-compensated display content of the current frame, and then the mixed compensation frame is inserted between the video picture of the current frame and the video picture of the previous frame (or the next frame). Furthermore, the problems of pause and jitter of the video signal can be better solved through the motion compensation technology while the problem that the OSD layer signal is torn by the motion compensation processing technology is solved.

Further, when the area of the OSD layer is small or the OSD layer is a transparent layer, since the motion compensation processing does not affect the final display effect or has a small effect, based on this situation, the present embodiment provides another video data processing method.

A flow chart of yet another video data processing method is schematically shown in fig. 13. As shown in fig. 13, the method mainly includes the following steps:

and S1301, the first chip judges whether the current frame display content contains graphics layer data.

If the OSD layer is included, go to step S1302; otherwise, the identification information which does not comprise the OSD layer can be added in the HDMI information packet, and the information packet and the display content of the current frame are transmitted to the television main chip through the HDMI.

S1302: and if the current frame display content contains the graphic layer data, the first chip acquires the position information of the graphic layer corresponding to the graphic layer data in the current frame display content.

And S1303, judging whether the relative area of the graphic layer corresponding to the graphic layer data in the video layer corresponding to the current frame display content is larger than a preset area value or not by the first chip according to the position information.

The size of the preset area can be set according to the user requirement, for example, the area of the volume bar is small, and the influence of the volume bar on the display picture can be ignored. If the area is larger than the preset area, executing step S1304, otherwise, ignoring the graphics layer, and meanwhile, performing area judgment on other graphics layers in the current frame display content until the graphics layers in the current frame display content are analyzed.

And S1304, if the area value is larger than the preset area value, the first chip judges whether the graphic layer corresponding to the graphic layer data is a transparent layer.

When the graphics layer signal generator has a surface output, before the video layer signal and the graphics layer signal are superposed to generate the display content of the current frame, the graphics layer picture frame is intercepted from the graphics layer signal; and then, judging whether the graphic layer corresponding to the graphic layer signal is a transparent layer or not according to the analysis result of the pixel value of the pixel point in the graphic layer picture frame. For example, when the pixel values of the pixels in the graphics layer picture frame are all 0, that is, the pixel values of the pixels all satisfy R =0, B =0, and G =0, it is described that the graphics layer corresponding to the graphics layer signal is a transparent layer.

If the graphics layer corresponding to the graphics layer signal is not a transparent layer, step S1305 is executed, otherwise, the HDMI packet may be added with identification information that does not include an OSD layer, and the packet and the display content of the current frame are transmitted to the tv main chip through HDMI, so that the second chip performs motion compensation processing on all image areas corresponding to the video image signal according to the indication information, and outputs the processed signal to the display screen for display, thereby effectively avoiding the problem of reduced display picture quality caused by turning off the motion compensation processing function when the video image signal includes the graphics layer signal.

Of course, if the influence of the transparent graphics layer is not considered, the step S1305 may be directly executed when it is determined that the relative area of the graphics layer corresponding to the graphics layer data in the video layer corresponding to the current frame display content is greater than the preset area value.

And S1305, the first chip adds the position information of the graphics layer corresponding to the graphics layer data to an HDMI information packet.

S1306, the first chip sends the HDMI information packet and the current frame display content to a second chip.

S1307, the second chip performs motion compensation on the image except the area corresponding to the position information in the current frame display content, and does not perform motion compensation on the image in the area corresponding to the position information in the current frame display content.

It should be noted that, in the implementation process, only one of the above-mentioned limiting conditions for selecting the OSD layer area and the transparency may be selected as needed to determine whether it is an effective OSD layer, for example, when the number of OSD layers in the current frame is small, and the number of bytes in the packet can contain all the information, only whether it is a transparent layer is considered, and when it is not a transparent layer, the packet including the identification information of the OSD layer and the location information of each effective OSD layer is added to the packet of the HDMI protocol.

Based on the same concept as the above method, the present embodiment also provides a video data processing apparatus. The apparatus is disposed in a first chip, comprising a memory and a processor, wherein: the memory for storing program code;

the processor is configured to read the program code stored in the memory and execute the method provided in any of the embodiments.

Based on the same concept as the method described above, this embodiment further provides a display device, where the display device includes a first chip and a second chip, where the first chip and the second chip are connected by an HDMI line, display content of the first chip is transmitted to the second chip for display by the HDMI line, and the first chip is configured to:

judging whether the display content of the current frame contains the data of the graphic layer;

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive step, are within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure.

It should be understood that the terms "first," "second," "third," and the like in the description and claims of this application and in the foregoing drawings 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," as well as 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 for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand 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 the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application. Other components expressly listed or inherent to such products or devices.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting 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 the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A video data processing method is used for a first chip and a second chip, wherein the first chip and the second chip are connected through an HDMI (high-definition multimedia interface) line, the display content of the first chip is transmitted to the second chip through the HDMI line for display, and the method comprises the following steps:

the first chip judges whether the display content of the current frame contains graphics layer data or not;

if the graphics layer data is contained, the first chip adds identification information containing the graphics layer data to an HDMI information packet, acquires position information of a graphics layer corresponding to the graphics layer data in the current frame display content, and adds the position information to the HDMI information packet, wherein the position information comprises coordinate information of a first vertex of the graphics layer and size information of the graphics layer, or the position information comprises coordinate information of the first vertex of the graphics layer and coordinate information of a second vertex;

2. The method of claim 1, wherein the first vertex and the second vertex are diagonal vertices of the graphics layer.

3. The method of claim 1, wherein prior to adding identification information containing the graphics layer data to an HDMI packet, the method further comprises:

the first chip acquires the position information of a graphic layer corresponding to the graphic layer data in the current frame display content;

the first chip judges whether the relative area of the graphic layer corresponding to the graphic layer data in the video layer corresponding to the current frame display content is larger than a preset area value or not according to the position information;

and if the area value is larger than the preset area value, the first chip adds the identification information containing the graphics layer data to the HDMI information packet.

4. The method of claim 1, wherein adding identification information containing the graphics layer data to an HDMI packet comprises:

if the area value is larger than the preset area value, the first chip judges whether the graphic layer corresponding to the graphic layer data is a transparent layer;

and if the HDMI information packet is not a transparent layer, the first chip adds the position information of the graphics layer corresponding to the graphics layer data to the HDMI information packet.

5. The method of claim 1 or 4, further comprising:

the second chip performs motion compensation on the image of the current frame display content except the area corresponding to the position information, and does not perform motion compensation on the image of the area corresponding to the position information in the current frame display content.

6. The method according to any one of claims 1 to 4, wherein the determining, by the first chip, whether the current frame display content includes graphics layer data comprises:

and the first chip judges whether the display content of the current frame contains the graphics layer data or not according to the data output by the surface finger.

7. The method according to any one of claims 1 to 4, wherein the HDMI packet is an SPD packet and/or an NVBI packet.

8. A video data processing apparatus, characterized in that the apparatus is provided in a first chip, comprising a memory and a processor, wherein:

the memory for storing program code;

the processor configured to read the program code stored in the memory and execute the method of any one of claims 1 to 7.

9. A display device is characterized by comprising a first chip and a second chip, wherein the first chip and the second chip are connected through an HDMI (high-definition multimedia interface) line, display content of the first chip is transmitted to the second chip through the HDMI line to be displayed, and the first chip is configured to:

if the graphics layer data is contained, adding identification information containing the graphics layer data into an HDMI information packet, acquiring position information of a graphics layer corresponding to the graphics layer data in the current frame display content, and adding the position information into the HDMI information packet, wherein the position information comprises coordinate information of a first vertex of the graphics layer and size information of the graphics layer, or the position information comprises coordinate information of the first vertex of the graphics layer and coordinate information of a second vertex;