WO2020248680A1

WO2020248680A1 - Video data processing method and apparatus, and display device

Info

Publication number: WO2020248680A1
Application number: PCT/CN2020/083850
Authority: WO
Inventors: 王之奎; 李永罡; 刘金刚
Original assignee: 海信视像科技股份有限公司
Priority date: 2019-06-10
Filing date: 2020-04-09
Publication date: 2020-12-17
Also published as: CN112073788B; CN112073788A

Abstract

Provided in the present application are a video data processing method and apparatus, and a display device; the display device comprises a first controller and second controller that are connected by means of an HDMI cable, wherein display content of the first controller must be transmitted to the second controller by means of the HDMI cable for display. When a frame of display content transmitted to the second controller contains graphics layer data, the first controller adds identification information to an HDMI information packet on the basis of the characteristics of the HDMI information packet and sends same to the second controller along with content to be displayed.

Description

Video data processing method, device and display equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 10, 2019, the filing date is 201910498642.1, and the application name is "Video data processing methods, devices, and display equipment", and it is claimed on September 20, 2019. The priority of the Chinese patent application filed with the Chinese Patent Office on the date of application date of 201910893604.6 and the application name is "Video Data Processing Method, Device and Display Device", the entire content of which is incorporated into this application by reference.

Technical field

The embodiments of the present application relate to display technology. In particular, it relates to video data processing methods, devices and display devices.

Background technique

The display device can provide users with playback screens such as audio, video, and pictures. Nowadays, in order to meet the individual needs of users, display devices can not only provide users with live TV program content received through data broadcasting, but also provide users with various applications and service content such as online videos and online games. In addition, with the application of cameras on display devices, video chat has also become a basic function of display devices.

In order to facilitate the use of users, an HDMI (High Definition Multimedia Interface) interface is usually provided on the current TV. In this way, external devices with built-in operating systems such as smart set-top boxes and 4K hosts can access the TV through the HDMI interface.

When in use, the video data of the above-mentioned external device is transmitted to the main chip of the TV through the HDMI channel, and then the main chip in the TV performs the corresponding image quality processing on the video data, such as motion compensation, and displays it on its screen. . However, when the data transmitted by the above external device contains both the video layer and OSD (On Screen Displa) layer data, based on the characteristics of the HDMI data transmission protocol, the video layer and OSD layer data will be mixed and superimposed. When it is transmitted to the main chip of the TV, the main chip of the TV cannot distinguish whether the video data contains the OSD layer, and will continue to perform motion compensation processing on the video data. However, because the OSD layer data and the video layer data are drawn in different mechanisms, the OSD layer data does not require motion compensation. Therefore, if the OSD image signal and the video signal are mixed and superimposed and then subjected to motion compensation processing, the motion vector is the video signal and the OSD layer signal With the superimposed motion vector, the OSD layer picture will be deformed and broken at this time.

Therefore, there is an urgent need to provide a new video data processing method so that the TV can recognize whether the video data received via the HDMI interface contains OSD layer data.

Summary of the invention

In response to the foregoing problems, the embodiments of the present application provide a video data processing method, device, and display device, so that the main TV chip can recognize whether the video data received via the HDMI interface contains OSD layer data.

According to the first aspect of the embodiments of the present application, there is provided a video data processing method for a first controller and a second controller, wherein the first controller and the second controller are connected through an HDMI cable, The display content of the first controller is transmitted to the second controller through the HDMI cable for display, and the method includes:

The first controller determines whether the display content of the current frame contains graphics layer data;

If the graphics layer data is included, the first controller adds the identification information including the graphics layer data to the HDMI information packet;

The first controller sends the HDMI information packet and the current frame display content to the second controller.

According to a second aspect of the embodiments of the present application, a video data processing device is provided. The device is set in a first controller and includes a memory and a processor, wherein:

The memory is used to store program code;

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

According to a third aspect of the embodiments of the present application, a display device is provided. The display device includes a first controller and a second controller, wherein the first controller and the second controller are connected through an HDMI cable , The display content of the first controller is transmitted to the second controller through the HDMI cable for display, and the first controller is configured to:

Determine whether the display content of the current frame contains graphics layer data;

If it contains graphics layer data, add the identification information containing the graphics layer data to the HDMI information packet;

Sending the HDMI information packet and the current frame display content to the second controller.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Fig. 1 exemplarily shows a schematic diagram of an operation scenario between a display device and a control device according to an embodiment;

FIG. 2 exemplarily shows a block diagram of the hardware configuration of the control device 100 according to the embodiment;

FIG. 3 exemplarily shows a block diagram of the hardware configuration of the display device 200 according to the embodiment;

FIG. 4 exemplarily shows a block diagram of the hardware architecture of the display device 200 according to FIG. 3;

FIG. 5 exemplarily shows a schematic diagram of the functional configuration of the display device 200 according to the embodiment;

Fig. 6a exemplarily shows a schematic diagram of software configuration in the display device 200 according to the embodiment;

FIG. 6b exemplarily shows a configuration diagram of an application program in the display device 200 according to the embodiment;

FIG. 7 exemplarily shows a schematic diagram of the user interface in the display device 200 according to the embodiment;

FIG. 8 exemplarily shows a schematic flowchart of a video data processing method;

FIG. 9 exemplarily shows a schematic diagram of the processing flow of the video layer signal and the graphics layer signal by the first controller;

FIG. 10 exemplarily shows a display solution corresponding to the method in FIG. 8;

FIG. 11 exemplarily shows a schematic flowchart of another video data processing method;

Fig. 12 exemplarily shows a schematic diagram of a frame picture;

FIG. 13 exemplarily shows a schematic flowchart of another video data processing method.

Detailed ways

In order to make the purpose, 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 described clearly and completely in conjunction with the accompanying drawings in the exemplary embodiments of the present application. Obviously The described exemplary embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

The display terminal involved in the present application includes at least two system-level chips. To facilitate understanding, a display terminal with a multi-chip structure is introduced here.

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

In addition, due to the hardware structure, the hardware system of traditional display devices only supports one hard decoding resource, and usually only supports 4K resolution video decoding. Therefore, when you want to realize the video chat while watching Internet TV, in order not to reduce The definition of the network video screen requires the use of hard decoding resources (usually the GPU in the hardware system) to decode the network video. In this case, the general-purpose processor (such as CPU) in the hardware system can only be used to decode the video. The video chat screen is processed by soft decoding.

Using soft decoding to process the video chat screen will greatly increase the data processing burden of the CPU. When the CPU's data processing burden is too heavy, the picture may freeze or become unsmooth. Further, subject to the data processing capability of the CPU, when the CPU soft decoding is used to process the video chat screen, it is usually impossible to achieve multi-channel video calls. When the user wants to simultaneously video chat with multiple other users in the same chat scene, it will There is a situation where access is blocked.

Based on the above considerations, in order to overcome the above shortcomings, this application discloses a dual hardware system architecture to realize multiple channels of video chat data (at least one local video).

The following first describes the concepts involved in the present application with reference to the drawings. It should be pointed out here that the following description of each concept is only to make the content of this application easier to understand, and does not mean to limit the protection scope of this application.

The term "module" used in the various embodiments of this application can refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or a combination of hardware or/and software code that can execute related to the component Function.

The term "remote control" used in the various embodiments of this application refers to a component of an electronic device (such as the display device disclosed in this application), which can generally control the electronic device wirelessly within a short distance. This component can generally use infrared and/or radio frequency (RF) signals and/or Bluetooth to connect to electronic devices, and can also include functional modules such as WiFi, wireless USB, Bluetooth, and motion sensors. For example, a handheld touch remote control uses the user interface in the touch screen to replace most of the physical built-in hard keys in general remote control devices.

The term "gesture" used in the embodiments of the present application refers to a user's behavior through a change of hand shape or hand movement to express expected ideas, actions, goals, and/or results.

The term "hardware system" used in the various embodiments of this application may refer to a computing device composed of mechanical, optical, electrical, and magnetic devices such as integrated circuit (IC) and printed circuit board (PCB). , Control, storage, input and output functions. In the various embodiments of the present application, the hardware system is also usually referred to as a motherboard or a chip.

Fig. 1 exemplarily shows a schematic diagram of an operation scenario between a display device and a control device according to an embodiment. As shown in FIG. 1, the user can operate the display device 200 by controlling the device 100.

Wherein, the control device 100 may be a remote controller 100A, which can communicate with the display device 200 through infrared protocol communication, Bluetooth protocol communication, ZigBee protocol communication or other short-distance communication methods for wireless or other communication The display device 200 is controlled in a wired manner. The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, etc. For example, the user can control the display device 200 by inputting corresponding control commands through the volume plus and minus keys, channel control keys, up/down/left/right movement keys, voice input keys, menu keys, and switch buttons on the remote control. Function.

The control device 100 can also be a smart device, such as a mobile terminal 100B, a tablet computer, a computer, a notebook computer, etc., which can be connected through a local area network (LAN, Wide Area Network), a wide area network (WAN, Wide Area Network), and a wireless local area network ((WLAN) , Wireless Local Area Network) or other networks communicate with the display device 200, and realize the control of the display device 200 through an application program corresponding to the display device 200. For example, use an application program running on a smart device to control the display device 200 The application can provide users with various controls through an intuitive user interface (UI, User Interface) on the screen associated with the smart device.

For example, both the mobile terminal 100B and the display device 200 can be installed with software applications, so that the connection and communication between the two can be realized through a network communication protocol, thereby realizing one-to-one control operation and data communication. For example, the mobile terminal 100B can establish a control command protocol with the display device 200, synchronize the remote control keyboard to the mobile terminal 100B, and control the display device 200 by controlling the user interface of the mobile terminal 100B; or the mobile terminal 100B The audio and video content displayed on the screen is transmitted to the display device 200 to realize the synchronous display function.

As shown in FIG. 1, the display device 200 can also communicate with the server 300 through multiple communication methods. In various embodiments of the present application, the display device 200 may be allowed to communicate with the server 300 via a local area network, a wireless local area network, or other networks. The server 300 may provide various contents and interactions to the display device 200.

Illustratively, the display device 200 transmits and receives information, interacts with an Electronic Program Guide (EPG, Electronic Program Guide), receives software program updates, or accesses a remotely stored digital media library. The server 300 may be a group or multiple groups, and may be one or more types of servers. The server 300 provides other network service content such as video on demand and advertising services.

The display device 200, on the one hand, may be a liquid crystal display, an OLED (Organic Light Emitting Diode) display, or a projection display device; on the other hand, the display device may be a smart TV or a display system composed of a display and a set-top box. The specific display device type, size, resolution, etc. are not limited, and those skilled in the art can understand that the display device 200 can make some changes in performance and configuration as required.

In addition to providing the broadcast receiving TV function, the display device 200 may additionally provide a smart network TV function that provides a computer support function. Examples include Internet TV, Smart TV, Internet Protocol TV (IPTV) and so on. In some embodiments, the display device may not have a broadcast receiving function.

As shown in Figure 1, the display device may be connected or provided with a camera, which is used to present the picture captured by the camera on the display interface of the display device or other display devices to realize interactive chats between users. Specifically, the picture captured by the camera can be displayed on the display device in full screen, half screen, or in any optional area.

As an optional connection method, the camera is connected to the monitor rear shell through a connecting plate, and is fixedly installed on the upper middle of the monitor rear shell. As an installable method, it can be fixedly installed at any position of the monitor rear shell to ensure its It is sufficient that the image capture area is not blocked by the rear shell, for example, the image capture area and the display device have the same orientation.

As another optional connection method, the camera can be connected to the display rear shell through a connecting plate or other conceivable connectors. The connector is equipped with a lifting motor. When the user wants to use the camera or has an application to use the camera When the camera is not needed, it can be raised above the display. When the camera is not needed, it can be embedded behind the back shell to protect the camera from damage.

As an embodiment, the camera used in this application may have 16 million pixels to achieve the purpose of ultra-high-definition display. In actual use, a camera with higher or lower than 16 million pixels can also be used.

When a camera is installed on the display device, the content displayed in different application scenarios of the display device can be merged in many different ways, so as to achieve functions that cannot be achieved by traditional display devices.

Exemplarily, the user can video chat with at least one other user while watching a video program. The presentation of the video program can be used as the background picture, and the video chat window is displayed on the background picture. Visually, you can call this function "watch and chat".

Optionally, in the "watching and chatting" scenario, while watching live video or online video, at least one video chat is performed across terminals.

In another example, the user can start a video chat with at least one other user while entering the education application for learning. For example, students can realize remote interaction with teachers while learning content in educational applications. Visually, you can call this function "learning and chatting".

In another example, when a user is playing a card game, a video chat is conducted with players entering the game. For example, when a player enters a game application to participate in a game, it can realize remote interaction with other players. Visually, you can call this function "watch and play".

Optionally, the game scene is integrated with the video picture, and the portrait in the video picture is cut out and displayed on the game picture to improve user experience.

Optionally, in somatosensory games (such as ball games, boxing games, running games, dancing games, etc.), human body postures and movements are acquired through the camera, body detection and tracking, and the detection of human bone key points data, and then the game Animations are integrated to realize games such as sports and dance scenes.

In another example, the user can interact with at least one other user in video and voice in the K song application. Visually, you can call this function "watch and sing". Preferably, when at least one user enters the application in the chat scene, multiple users can jointly complete the recording of a song.

In another example, the user can turn on the camera locally to obtain pictures and videos, which is vivid, and this function can be called "look in the mirror".

In other examples, more functions can be added or the aforementioned functions can be reduced. This application does not specifically limit the function of the display device.

Fig. 2 exemplarily shows a configuration block diagram of the control device 100 according to an 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 device 100 is configured to control the display device 200, and can receive user input operation instructions, and convert the operation instructions into instructions that can be recognized and responded to by the display device 200, and serve as an interactive intermediary between the user and the display device 200 effect. For example, the user operates the channel addition and subtraction keys on the control device 100, and the display device 200 responds to the channel addition and subtraction operations.

In some embodiments, the control device 100 may be a smart device. For example, the control device 100 can install various applications for controlling the display device 200 according to user requirements.

In some embodiments, as shown in FIG. 1, the mobile terminal 100B or other smart electronic devices can perform similar functions to the control device 100 after installing an application for controlling the display device 200. For example, the user can install various function keys or virtual buttons of the graphical user interface that can be provided on the mobile terminal 100B or other smart electronic devices by installing applications to realize the function of the physical keys of the control device 100.

The controller 110 includes a processor 112, RAM 113 and ROM 114, a communication interface, and a communication bus. The controller 110 is used to control the operation and operation of the control device 100, as well as the communication and cooperation between internal components, and external and internal data processing functions.

The communicator 130 realizes communication of control signals and data signals with the display device 200 under the control of the controller 110. For example, the received user input signal is sent to the display device 200. The communicator 130 may include at least one of communication modules such as a WIFI module 131, a Bluetooth module 132, and an NFC module 133.

The user input/output interface 140, wherein the input interface includes at least one of input interfaces such as a microphone 141, a touch panel 142, a sensor 143, and a button 144. For example, the user can implement the user instruction input function through voice, touch, gesture, pressing and other actions. The input interface converts the received analog signal into a digital signal and the digital signal into a corresponding instruction signal, which is sent to the display device 200.

The output interface includes an interface for sending the received user instruction to the display device 200. In some embodiments, it may be an infrared interface or a radio frequency interface. For example, in the case of an infrared signal interface, the user input instruction needs to be converted into an infrared control signal according to the infrared control protocol, and sent to the display device 200 via the infrared sending module. Another example is: in the case of a radio frequency signal interface, the user input instruction needs to be converted into a digital signal, and then modulated according to the radio frequency control signal modulation protocol, and then sent to the display device 200 by the radio frequency transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The control device 100 is configured with a communicator 130, such as: WIFI, Bluetooth, NFC and other modules, which can encode user input instructions through the WIFI protocol, or Bluetooth protocol, or NFC protocol, and send to the display device 200.

The memory 190 is used to store various operating programs, data and applications for driving and controlling the control device 100 under the control of the controller 110. The memory 190 can store various control signal instructions input by the user.

The power supply 180 is used to provide operating power support for each element of the control device 100 under the control of the controller 110. Can battery and related control circuit.

FIG. 3 exemplarily shows a hardware configuration block diagram of a hardware system in the display device 200 according to an exemplary embodiment.

When the dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in Figure 3. For ease of expression, one hardware system in the dual hardware system architecture is called the first hardware system, A system, A chip or the first chip, and the other hardware system is called the second hardware system or N system, N chip, The second chip. The A chip includes the controller of the A chip (ie, the first controller) and passes through various interfaces, and the N chip includes the controller of the N chip (ie, the second controller) and passes through various interfaces. A relatively independent operating system can be installed in the first controller and the second controller. The operating system of the A chip and the operating system of the N chip can communicate with each other through a communication protocol. Exemplary: the operating system of the first controller The framework layer and the framework layer of the operating system of the N chip can communicate to transmit commands and data, so that there are two independent but related subsystems in the display device 200.

As shown in FIG. 3, the first controller and the N chip can realize connection, communication and power supply through multiple interfaces of different types. The interface type of the interface between the first controller and the N chip may include general-purpose input/output (GPIO), USB interface, HDMI interface, UART interface, etc. One or more of these interfaces may be used between the first controller and the N chip for communication or power transmission. For example, as shown in FIG. 3, under the dual hardware system architecture, the N chip can be powered by an external power source, and the first controller can be powered by the N chip instead of the external power source.

In addition to the interface for connecting with the N chip, the first controller may also include an interface for connecting to other devices or components, such as the MIPI interface for connecting to a camera (Camera) shown in FIG. 3, and a Bluetooth interface. Wait.

Similarly, in addition to the interface for connecting with the N chip, the N chip can also include a VBY interface for connecting to the display screen TCON (Timer Control Register), which is used to connect a power amplifier (Amplifier, AMP) and a speaker (Speaker). ) I2S interface; and IR/Key interface, USB interface, Wifi interface, Bluetooth interface, HDMI interface, Tuner interface, etc.

The dual hardware system architecture of the present application will be further described below in conjunction with FIG. 4. It should be noted that FIG. 4 is only an exemplary description of the dual hardware system architecture of the present application, and does not represent a limitation to the present application. In practical applications, both hardware systems can contain more or less hardware or interfaces as required.

FIG. 4 exemplarily shows a hardware architecture block diagram of the display device 200 according to FIG. 3. As shown in FIG. 4, the hardware system of the display device 200 may include a first controller and an N chip, and modules connected to the first controller or the N chip through various interfaces.

The N chip may include a tuner and 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, and an audio output interface 272. Power supply. In other embodiments, the N chip may also include more or fewer modules.

Among them, the tuner and demodulator 220 is used to perform modulation and demodulation processing such as amplifying, mixing, and resonating broadcast television signals received through wired or wireless methods, thereby demodulating the user’s information from multiple wireless or cable broadcast television signals. Select the audio and video signals carried in the frequency of the TV channel, and additional information (such as EPG data signals). According to different television signal broadcasting systems, the signal path of the tuner and demodulator 220 can be varied, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting or Internet broadcasting; and according to different modulation types, the signal adjustment method can be digitally modulated The method may also be an analog modulation method; and according to different types of received television signals, the tuner demodulator 220 may demodulate analog signals and/or digital signals.

The tuner and demodulator 220 is also used to respond to the TV channel frequency selected by the user and the TV signal carried by the frequency according to the user's selection and control by the controller 210.

In some other exemplary embodiments, the tuner demodulator 220 may also be in an external device, such as an external set-top box. In this way, the set-top box outputs TV audio and video signals through modulation and demodulation, and inputs them to the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with external devices or external servers 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 an infrared communication protocol module and other network communication protocol modules or near field communication protocol modules.

The display device 200 may establish a control signal and a data signal connection with an external control device or content providing device through the communicator 230. For example, the communicator may receive the control signal of the remote controller 100 according to the control of the controller.

The external device interface 250 is a component that provides data transmission between the N chip controller 210 (ie, the second controller) and the first controller and other external devices. The external device interface can be connected to external devices such as set-top boxes, game devices, notebook computers, etc. in a wired/wireless manner, and can receive external devices such as video signals (such as moving images), audio signals (such as music), and additional information (such as EPG). ) And other data.

Among them, the external device interface 250 may include: a high-definition multimedia interface (HDMI) terminal 251, a composite video blanking synchronization (CVBS) terminal 252, an analog or digital component terminal 253, a universal serial bus (USB) terminal 254, red, green, and blue ( RGB) terminal (not shown in the figure) and any one or more. This application does not limit the number and types of external device interfaces.

The controller 210 controls the work of the display device 200 and responds to user operations by running various software control programs (such as an operating system and/or various application programs) stored on the memory 290.

As shown in FIG. 4, the controller 210 includes a read-only memory RAM 213, a random access memory ROM 214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. Among them, RAM213 and ROM214, graphics processor 216, CPU processor 212, and communication interface 218 are connected by a bus.

ROM213, used to store various system startup instructions. For example, when the power-on signal is received, the power of the display device 200 starts to start, and the CPU processor 212 runs the system start-up instruction in the ROM, and copies the operating system stored in the memory 290 to the RAM 214 to start the start-up operating system. After the operating system is started, the CPU processor 212 copies various application programs in the memory 290 to the RAM 214, and then starts to run and start various application programs.

The graphics processor 216 is used to generate various graphics objects, such as icons, operation menus, and user input instructions to display graphics. Including an arithmetic unit, which performs operations by receiving various interactive commands input by the user, and displays various objects according to display attributes. As well as including a renderer, various objects obtained based on the arithmetic unit are generated, and the rendering result is displayed on the display 280.

The CPU processor 212 is configured to execute operating system and application program instructions stored in the memory 290. And according to receiving various interactive instructions input from the outside, to execute various applications, data and content, so as to finally display and play various audio and video content.

In some exemplary embodiments, the CPU processor 212 may include multiple processors. The multiple processors may include a main processor and multiple or one sub-processors. The main processor is used to perform some operations of the display device 200 in the pre-power-on mode, and/or to display images in the normal mode. Multiple or one sub-processor, used to perform an operation in the standby mode and other states.

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

The controller 210 may control the overall operation of the display device 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.

Wherein, the object may be any one of the selectable objects, such as a hyperlink or an icon. Operations related to the selected object, for example: display operations connected to hyperlink pages, documents, images, etc., or perform operations corresponding to the icon. The user command for selecting the UI object may be a command input through various input devices (for example, a mouse, a keyboard, a touch pad, etc.) connected to the display device 200 or a voice command corresponding to the voice spoken by the user.

The memory 290 includes storing various software modules for driving and controlling the display device 200. For example, various software modules stored in the memory 290 include: a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

Among them, the basic module is the underlying software module used for signal communication between various hardware in the display device 200 and sending processing and control signals to the upper module. The detection module is a management module used to collect various information from various sensors or user input interfaces, and perform digital-to-analog conversion and analysis management.

For example: the voice recognition module includes a voice analysis module and a voice command database module. The display control module is a module for controlling the display 280 to display image content, and can be used to play information such as multimedia image content and UI interfaces. The communication module is a module used for control and data communication with external devices. The browser module is a module used to perform data communication between browsing servers. The service module is a module used to provide various services and various applications.

At the same time, the memory 290 is also used to store and receive external data and user data, images of various items in various user interfaces, and visual effect diagrams of focus objects.

The user input interface is used to send a user's input signal to the controller 210, or to transmit a signal output from the controller to the user. Exemplarily, the control device (such as a mobile terminal or a remote control) may send input signals input by the user, such as a power switch signal, a channel selection signal, and a volume adjustment signal, to the user input interface, and then the user input interface forwards the input signal to the controller; Alternatively, the control device may receive output signals such as audio, video, or data output from the user input interface processed by the controller, and display the received output signal or output the received output signal as audio or vibration.

In some embodiments, the user may input a user command through 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 can input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through the sensor to receive the user input command.

The video processor 260-1 is used to receive video signals, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to the standard codec protocol of the input signal. The video signal displayed or played directly on the display 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

Among them, the demultiplexing module is used to demultiplex the input audio and video data stream. For example, if MPEG-2 is input, the demultiplexing module will demultiplex into a video signal and an audio signal.

The video decoding module is used to process the demultiplexed video signal, including decoding and scaling.

An image synthesis module, such as an image synthesizer, is used to superimpose and mix the GUI signal generated by the graphics generator with the zoomed video image according to user input or itself to generate an image signal for display.

Frame rate conversion module, used to convert the frame rate of the input video, such as converting the frame rate of the input 24Hz, 25Hz, 30Hz, 60Hz video to the frame rate of 60Hz, 120Hz or 240Hz, where the input frame rate can be compared with the source The video stream is related, and the output frame rate can be related to the update rate of the display. The input has a usual format, such as frame insertion.

The display formatting module is used to change the signal output by the frame rate conversion module into a signal that conforms to a display format such as a display, such as format conversion of the signal output by the frame rate conversion module to output RGB data signals.

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

And, depending on the type of the display 280, it also includes a driving component for driving the display. Alternatively, if the display 280 is a projection display, it may also include a projection device and a projection screen.

The audio processor 260-2 is used to receive audio signals, and perform decompression and decoding according to the standard codec protocol of the input signal, as well as audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing, and the result can be in the speaker 272 The audio signal to be played.

The audio output interface 270 is used to receive the audio signal output by the audio processor 260-2 under the control of the controller 210. The audio output interface may include a speaker 272 or output to an external audio output terminal 274 of a generator of an external device, such as : External audio terminal or headphone output terminal, etc.

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

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

The power supply is used to provide power supply support for the display device 200 with power input from an external power supply under the control of the controller 210. The power supply may include a built-in power supply circuit installed inside the display device 200, or may be a power supply installed outside the display device 200, such as a power interface that provides an external power supply in the display device 200.

Similar to the N chip, as shown in FIG. 4, the A chip may include a controller 310 (ie, the first controller), a communicator 330, a detector 340, and a memory 390. In some embodiments, it may also include a video processor 360, a user input interface, an audio processor, a display, and an audio output interface. In some embodiments, there may also be a power supply that independently supplies power to the first controller.

The communicator 330 is a component for communicating with external devices or external servers 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 an infrared communication protocol module and other network communication protocol modules or near field communication protocol modules.

The communicator 330 of the first controller and the communicator 230 of the second controller also interact with each other. For example, the WiFi module 231 in the second controller hardware system is used to connect to an external network and generate network communication with an external server and the like. The WiFi module 331 in the hardware system of the first controller is used to connect to the WiFi module 231 of the second controller without direct connection with an external network or the like. The first controller connects to the external network through the second controller. Therefore, for the user, a display device as in the above embodiment can externally display a WiFi account.

The detector 340 is a component used by the first controller of the display device to collect signals from the external environment or interact with the outside. The detector 340 may include a light receiver 342, a sensor used to collect the intensity of ambient light, which can adaptively display parameter changes by collecting ambient light, etc.; it may also include an image collector 341, such as a camera, a camera, etc., which can be used to collect external Environmental scenes, as well as gestures used to collect user attributes or interact with users, can adaptively change display parameters, and can also recognize user gestures to achieve the function of interaction with users.

The external device interface 350 provides components for data transmission between the controller 310 and the N chip or other external devices. The external device interface can be connected to external devices such as set-top boxes, game devices, notebook computers, etc., in a wired/wireless manner.

The controller 310 controls the work of the display device 200 and responds to user operations by running various software control programs (such as installed third-party applications, etc.) stored on the memory 390 and interacting with the second controller.

As shown in FIG. 4, the controller 310 includes a read-only memory ROM 313, a random access memory RAM 314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. Among them, the ROM 313 and the RAM 314, the graphics processor 316, the CPU processor 312, and the communication interface 318 are connected by a bus.

ROM313, used to store various system startup instructions. The CPU processor 312 runs the system startup instruction in the ROM, and copies the operating system stored in the memory 390 to the RAM 314 to start the startup operating system. After the operating system is started up, the CPU processor 312 copies various application programs in the memory 390 to the RAM 314, and then starts to run and start various application programs.

The CPU processor 312 is used to execute operating system and application program instructions stored in the memory 390, communicate with the second controller, transmit and interact signals, data, instructions, etc., and receive various interactive instructions from external inputs, To execute various applications, data and content, in order to finally display and play various audio and video content.

The communication interface may include the first interface 318-1 to the nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or network interfaces connected to the second controller via a network.

The controller 310 may control the overall operation of the display device 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.

The graphics processor 316 is used to generate various graphics objects, such as icons, operation menus, and user input instructions to display graphics. Including an arithmetic unit, which performs operations by receiving various interactive commands input by the user, and displays various objects according to display attributes. As well as including a renderer, various objects obtained based on the arithmetic unit are generated, and the rendering result is displayed on the display 280.

Both the graphics processor 316 of the first controller and the graphics processor 216 of the second controller can generate various graphics objects. Differentily, if application 1 is installed in the first controller, and application 2 is installed in the second controller, when the user is in the interface of application 1, and the user input instructions in application 1, the first controller graphics processing The generator 316 generates graphic objects. When the user is on the interface of Application 2 and performs the user-input instruction in Application 2, the graphics processor 216 of the second controller generates the graphics object.

Fig. 5 exemplarily shows a schematic diagram of a functional configuration of a display device according to an exemplary embodiment.

As shown in FIG. 5, the memory 390 of the first controller and the memory 290 of the second controller are respectively used to store operating system, application programs, content and user data, etc., in the controller 310 of the first controller and the second controller The system operation of driving the display device 200 and responding to various operations of the user are executed under the control of the controller 210 of the monitor. The memory 390 of the first controller and the memory 290 of the second controller may include volatile and/or non-volatile memory.

For the second controller, the memory 290 is specifically used to store the operating program of the controller 210 in the drive display device 200, and store various application programs built in the display device 200, various application programs downloaded by the user from an external device, and Various graphical user interfaces related to the application program, various objects related to the graphical user interface, user data information, and various internal data supporting the application program. 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 to store driver programs 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 and demodulator 220, and the input/output interface.

In some embodiments, the memory 290 may store software and/or programs. The software programs used to represent an operating system (OS) include, for example, a kernel, middleware, application programming interface (API), and/or application programs. Exemplarily, the kernel may control or manage system resources, or functions implemented by other programs (such as the middleware, API, or application program), and the kernel may provide interfaces to allow middleware and APIs, or applications to access the controller , In order to achieve control or management of system resources.

For example, the memory 290 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 command recognition module 2907, a communication control module 2908, and an optical receiver Module 2909, power control module 2910, operating system 2911, and other application programs 2912, browser module, etc. The controller 210 executes various software programs in the memory 290, such as: broadcast and television signal reception and demodulation function, TV channel selection control function, volume selection control function, image control function, display control function, audio control function, external command Various functions such as identification function, communication control function, optical signal receiving function, power control function, software control platform supporting various functions, and browser function.

The memory 390 includes storing various software modules for driving and controlling the display device 200. For example, various software modules stored in the memory 390 include: a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules. Since the functions of the memory 390 and the memory 290 are relatively similar, please refer to the memory 290 for related parts, and will not be repeated here.

For example, the memory 390 includes an image control module 3904, an audio control module 2906, an external command recognition module 3907, a communication control module 3908, an optical receiving module 3909, an operating system 3911, and other application programs 3912, a browser module, and so on. The controller 210 executes various software programs in the memory 290, such as: image control function, display control function, audio control function, external command recognition function, communication control function, light signal receiving function, power control function, support for various Functional software control platform, and various functions such as browser functions.

Differentily, the external command recognition module 2907 of the second controller and the external command recognition module 3907 of the first controller can recognize different commands.

Exemplarily, because the image receiving device such as a camera is connected to the first controller, the external command recognition module 3907 of the first controller may include a graphic recognition module 3907-1, and the graphic recognition module 3907-1 stores a graphic database. When the camera receives a graphics instruction from the outside world, it performs a corresponding relationship with the instruction in the graphics database to control the display device. Since the voice receiving device and the remote controller are connected to the second controller, the external command recognition module 2907 of the second controller may include a voice recognition module 2907-2. The voice recognition module 2907-2 stores a voice database, and the voice receiver When the device receives an external voice command or command, it corresponds to the command in the voice database to control the display device. Similarly, the control device 100 such as a remote controller is connected to the second controller, and the key instruction recognition module 2907-3 interacts with the control device 100 in instructions.

Fig. 6a exemplarily shows a configuration block diagram of the software system in the display device 200 according to an exemplary embodiment.

For the second controller, as shown in Fig. 6a, the operating system 2911 includes execution software for processing various basic system services and for implementing hardware-related tasks.

In some embodiments, part of the operating system kernel may include a series of software to manage the hardware resources of the display device and provide services for other programs or software codes.

In some other embodiments, part of the operating system kernel may include one or more device drivers, and the device drivers may be a set of software codes in the operating system to help operate or control devices or hardware associated with the display device. The drive may contain code to manipulate video, audio, and/or other multimedia components. Examples include displays, cameras, Flash, WiFi, and audio drivers.

Among them, the accessibility module 2911-1 is used to modify or access the application program, so as to realize the accessibility of the application program and the operability of its display content.

The communication module 2911-2 is used to connect to other peripherals via related communication interfaces and communication networks.

The user interface module 2911-3 is used to provide objects that display the user interface for access by various applications, and can realize user operability.

The control application 2911-4 is used to control process management, including runtime applications.

The event transmission system 2914 can be implemented in the operating system 2911 or in the application 2912. In some embodiments, it is implemented in the operating system 2911 on the one hand, and implemented in the application program 2912 at the same time, for monitoring various user input events, and responding to the recognition results of various events or sub-events according to various events. And implement one or more sets of pre-defined operation procedures.

Among them, the event monitoring module 2914-1 is used to monitor input events or sub-events of the user input interface.

Event recognition module 2914-2, used to input the definition of various events to various user input interfaces, recognize various events or sub-events, and transmit them to the processing to execute the corresponding one or more groups of processing programs .

Among them, the event or sub-event refers to the input detected by one or more sensors in the display device 200 and the input of an external control device (such as the control device 100). Such as: various sub-events of voice input, gesture input sub-events of gesture recognition, and sub-events of remote control button command input of control devices. For example, one or more sub-events in the remote control include multiple forms, including but not limited to one or a combination of pressing up/down/left/right/, confirming keys, and pressing keys. And the operations of non-physical buttons, such as moving, pressing, and releasing.

The interface layout management module 2913, which directly or indirectly receives various user input events or sub-events monitored by the event transmission system 2914, is used to update the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the container The size, position, level, etc. of the interface are related to various execution operations.

Since the functions of the operating system 3911 of the first controller and the operating system 2911 of the second controller are relatively similar, please refer to the operating system 2911 for related details, which will not be repeated here.

As shown in FIG. 6b, the application layer of the display device includes various applications that can be executed on the display device 200.

The application layer 2912 of the second controller may include but is not limited to one or more applications, such as: video on demand application, application center, game application, and so on. The application layer 3912 of the first controller may include but is not limited to one or more applications, such as a live TV application, a media center application, and so on. It should be noted that the application programs contained in the first controller and the second controller are determined according to the operating system and other designs. The present invention does not need to perform the application programs contained in the first controller and the second controller. Specific definition and division.

Live TV applications can provide live TV through different sources. For example, a live TV application may use input from cable TV, wireless broadcasting, satellite services, or other types of live TV services to provide TV signals. And, the live TV application can display the video of the live TV signal on the display device 200.

Video-on-demand applications can provide videos from different storage sources. Unlike live TV applications, VOD provides video display from certain storage sources. For example, the video on demand can come from the server side of cloud storage, and from the local hard disk storage that contains the stored video programs.

Media center applications can provide various multimedia content playback applications. For example, the media center can provide services that are different from live TV or video on demand, and users can access various images or audio through the media center application.

Application center, can provide storage of various applications. The application program may be a game, an application program, or some other application program that is related to a computer system or other device but can be run on a display device. The application center can obtain these applications from different sources, store them in the local storage, and then run on the display device 200.

FIG. 7 exemplarily shows a schematic diagram of a user interface in the display device 200 according to an exemplary embodiment. As shown in FIG. 7, the user interface includes multiple view display areas, for example, a first view display area 201 and a play screen 202, where the play screen includes layout of one or more different items. And the user interface also includes a selector indicating that the item is selected, and the position of the selector can be moved through user input to change the selection of different items.

It should be noted that multiple view display areas can present display screens of different levels. For example, the first view display area can present video chat item content, and the second view display area can present application layer item content (eg, webpage video, VOD display, application program screen, etc.).

Optionally, the presentation of different view display areas has priority differences, and the display priority of the view display areas is different between view display areas with different priorities. For example, the priority of the system layer is higher than that of the application layer. When the user uses the acquisition selector and screen switching in the application layer, the screen display in the view display area of the system layer is not blocked; and the application layer is enabled according to the user's choice When the size and position of the view display area change, the size and position of the view display area of the system layer will not be affected.

The same level of display screen can also be presented. At this time, the selector can switch between the display area of the first view and the display area of the second view, and when the size and position of the display area of the first view change, the second view The size and position of the display area can be changed at any time.

Since independent operating systems may be installed in the first controller and the second controller respectively, there are two independent but interrelated subsystems in the display device 200. For example, both the first controller and the N can be independently installed with Android and various APPs, so that each chip can realize a certain function, and the first controller and the second controller can cooperate to realize a certain function.

For example, in the actual application process, the first controller (the technical solution shown in the embodiment of this application is also called A chip) and the second controller (the technical solution shown in the embodiment of this application is also called N Chip) can be used to receive video signals. The video signal includes: network video signal from network media, cable video signal from broadcast network and pre-stored local video signal. In a specific application process, the first controller is used to receive network video signals and local video signals. The second controller is used to receive the network video signal, the local video signal and the cable video signal transmitted by the first controller, and output the received signal to the display screen for display after corresponding processing.

Take the first controller for receiving network video signals as an example. Generally, network video signals include: video layer signals. The first controller is provided with a graphics layer signal generator. While the first controller receives network video signals, the graphics layer signal generator generates corresponding graphics layer signals according to requirements. At this time, the first controller also has a video layer Signal and graphics layer signals. The first controller needs to synthesize the video layer signal and the graphics layer signal and send the content to be displayed to the second controller. The second controller processes the video layer signal and the graphics layer signal and sends them to the display screen of the display device for display. In order to ensure the smoothness of the displayed picture, the second controller usually needs to perform image processing on the received video signal, such as motion compensation processing.

In the process of motion compensation, since the video layer signals are all signals with a certain motion vector, if the motion compensation technology only acts on the video layer signals, the video layer signals will be smoother without obvious jitter. However, if the signal received by the second controller is the display content of the current frame generated by superimposing the video layer signal and the graphics layer signal, since the graphics layer data in the motion compensation frame is compared with the area corresponding to the two frames before and after the graphics layer data, There must be movement of pixels. In this embodiment, the first controller and the second controller are connected by HDMI cables. According to the HDMI protocol, the video layer signal and the graphics layer signal cannot be simultaneously transmitted under the HDMI channel, so the first controller will transfer the video layer signal and the graphics After the layer signals are mixed, they are encoded into content to be displayed according to the HDMI protocol and then sent to the second controller. In this way, the second controller cannot distinguish whether the received content to be displayed contains graphics layer data. If you continue to perform motion compensation processing on the content to be displayed that contains graphics layer data, a corresponding area of graphics layer data will appear. The phenomenon that the picture is torn.

Based on this problem, this embodiment provides a video data processing method. Fig. 8 exemplarily shows a schematic flowchart of a video data processing method. As shown in Figure 8, the method mainly includes the following steps:

S801: The first controller determines whether the display content of the current frame contains graphics layer data.

It is possible to detect whether the graphics layer data is included before the video image signal is generated by superimposing the video layer signal and the graphics layer signal, that is, before displaying the content of the current frame. Wherein, in this embodiment, the video layer signal may be a video signal or an image signal.

FIG. 9 exemplarily shows a schematic diagram of the processing flow of the video layer signal and the graphics layer signal by the first controller. As shown in Figure 9, the first controller is used to receive video layer signals, where the video layer signals can be video signals derived from network media or local media, or image signals derived from network media or local media. , Can include video programs such as online movies, TV series, news, variety shows, and advertisements; also include video programs such as self-timed DVDs, video chats, and video games. In this embodiment, the graphics layer signal is also called OSD (Object Sequence Diagram, on-screen menu adjustment mode). The graphics layer signal comes from the graphics layer signal generator set inside the first controller. The graphics layer signal mainly includes user settings, prompt menus, and third-party application layers. In the Android system, it is controlled by the surface finger service (also called the graphics layer signal generator). Each graphics layer signal can be called a surface, and each surface has basic elements such as content, size, position coordinates, and transparency. The first controller may determine the position information of the graphics layer data in the basic element, where the position information is the size information and position coordinate information of the surface corresponding to the size and position coordinates of the basic element, respectively.

Therefore, in this embodiment, before the graphics layer signal is superimposed on the video signal from the network media or local media, it is determined whether the current frame display content contains graphics layer data according to the data output by the surface finger. If yes, step S802 is executed. Otherwise, you can add identification information that does not include the graphics layer in the HDMI information packet, or you can choose not to add information to the HDMI information packet.

S802: If the graphics layer data is included, the first controller adds the identification information including the graphics layer data to the HDMI information packet.

HDMI information packet (or Info Frame Type code) belongs to the auxiliary data category, which is used for various characteristics of the image to be transmitted by the high-speed receiving end, such as encoding (RGB/YCbCr), scanning method (Overscan/Underscan), display Ratio (16:9/4:3), pixel repetition rate, etc. This embodiment adopts SPD (source product description) and NVBI (NTSC VBI) in the HDMI protocol. NTSC is the abbreviation of National Television Standards Committee Vertical Blanking interval, which means "(United States) National Television Standards Committee". VBI also That is, the VBI during the vertical blanking period we are talking about is used in the TV processing to be the time for the vertical scanning to complete from the bottom of the screen to the top of the screen) These two packets of information. These two information packets are reserved information packets, and these two information packets will be sent with the display content of each frame. Therefore, in this embodiment, the information containing the graphics layer data is added to the HDMI information packet, and each frame can be transmitted in real time. Display the graphic layer information of the content. For example, the HDMI information packet is set to indicate whether to include OSD flag OSD flag, where OSD flag=1 indicates that there is graphics layer data, and OSD flag=0 indicates that there is no OSD layer data.

S803: The first controller sends the HDMI information packet and the current frame display content to the second controller.

The second controller acts as the HDMI signal receiving end. After analyzing the above HDMI packet (information packet), it can obtain information about the graphics layer, so as to adopt different display processing mechanisms to achieve more precise control of the picture effect. . FIG. 10 exemplarily shows a display solution corresponding to the method in FIG. 8. As shown in Figure 10, when OSD flag=0, it means that there is no OSD layer data, and the second controller can perform video signal processing according to the original video display mechanism; when OSD flag=1, it means that there is graphics layer data. Then the second controller can perform signal signal processing according to the OSD display mechanism, for example, directly turn off the motion compensation processing to prevent the graphics layer signal from being torn during the motion compensation process.

In this way, the second controller end can know whether the OSD layer is included in each frame of video data it receives by analyzing the content in the HDMI information packet, so as to perform corresponding processing.

In an exemplary implementation of this application, 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 controller directly turns off the motion Compensation processing may cause the problem of output image jitter. Therefore, in order to ensure the quality of the video output from the TV, this embodiment also provides another video data processing method.

Fig. 11 exemplarily shows a schematic flowchart of another video data processing method. As shown in Figure 11, the method mainly includes the following steps:

S1101: The first controller judges whether the display content of the current frame contains graphics layer data.

S1102: If the graphics layer data is included, the first controller obtains the position information of the graphics layer corresponding to the graphics layer data in the display content of the current frame.

Wherein, the position information is the size information and position coordinate information of the surface corresponding to the size of the basic element, such as the height and width information of the graphics layer, and the position coordinates, such as the coordinates of a certain vertex of the graphics layer corresponding to the graphics layer data. Or, the coordinate information of the first vertex and the coordinate information of the second vertex of the graphics layer, wherein the first vertex and the second vertex are diagonal vertices of the graphics layer. In this way, the TV main chip can know the relative position and relative area of each graphics layer in the video layer corresponding to the current frame display content.

S1103: The first controller adds the location information and the identification information including the graphics layer data to the HDMI information packet.

Based on SPD and NVBI both have 27 Bytes and the content of OSD layer location information, this embodiment is set, the HDMI information packet is used to identify the presence of the graphics layer identification information 1 byte, the location information of each graphics layer Occupies 12 bytes, as shown below:

SPD.1: OSD flag(1:OSD 0:video)

SPD.2～SPD.13: UI_layer1 (the first block of OSD UI location information)

SPD.14～SPD.25: UI_layer2 (the second block of OSD UI location information)

NVBI.1～NVBI.12: UI_layer3 (the third block of OSD UI location information)

NVBI.13～NVBI.24: UI_layer4 (the fourth block of OSD UI location information)

Of course, it is not limited to the setting method, and the OSD information can be cut 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.

S1104: The first controller sends the HDMI information packet and the current frame display content to the second controller.

S1105: The second controller performs motion compensation on the image in the display content of the current frame other than the area corresponding to the position information, and does not perform motion compensation on the image in the area corresponding to the position information in the current frame display content. Motion compensation.

In an exemplary embodiment of the present application, the second controller determines the first area corresponding to the graphics layer signal in the display content of the current frame according to the received position information, and determines the first area in the display content of the current frame. The second area outside the area; motion compensation is performed on the image of the second area.

For the determination process of the first area, refer to FIG. 12. Fig. 12 exemplarily shows a schematic diagram of a frame picture. The position information sent by the first controller is (m, n, w, h), where the picture size information of the graphics layer signal is (w, h) and the position coordinate information (m, n). The second controller determines the position of the picture of the graphics layer signal according to the position coordinate information (m, n), and then determines the display content of the picture of the graphics layer signal in the current frame according to the size information of the picture of the graphics layer signal as (w, h) The area occupied by the frame picture is the first area. Then, the frame picture showing the content in the current frame removes the graphics layer signal and the remaining area occupied by the frame picture showing the content in the current frame is the second area. The image in the second area is motion compensated. Of course, the position information sent by the first controller may be in the manner described above, and may also be the position coordinate information of two diagonal vertices.

In an exemplary embodiment of the present application, the process of performing motion compensation on the image of the second area is specifically: the motion compensation module in the second controller filters out the area occupied by the image of the graphics layer signal (the first area) For the corresponding pixels, the motion vector calculation of this area and the insertion of the compensation frame are not performed, and the pixels in the second area are motion compensated.

It can be seen that the first controller in this embodiment first determines the position information of the graphics layer signal, superimposes the graphics layer signal and the video layer signal, and converts it into the current frame display content, and then connects the position information to the current frame display content Together they are sent to the second controller in the form of HDMI data packets. The second controller performs motion compensation on the images in the display content of the current frame other than the area corresponding to the position information, and the second controller stitches the motion compensated image and the image of the graphics layer signal to generate the image to be displayed. The mixed compensation frame is inserted between the current frame of video picture and the previous frame (or the next frame) video picture, thereby avoiding the problem of the graphics layer signal being torn during the motion compensation process.

In the actual application process, the first area corresponding to the location information is generated based on the resolution of the video layer signal received by the first controller (also referred to as input resolution in this embodiment). The second area is calculated based on the resolution of the display screen (also referred to as display resolution in the embodiment of this application). In the process of video playback, the input resolution and display resolution are often inconsistent. For example: the input resolution of a network video is 1920*1080, but the display resolution is different depending on the display performance. The display resolution of the 4K display is 3840*2160. The display resolution of FHD (Full High Definition) displays generally can only reach 1920*1080. If the N chip and FHD (Full High Definition) display screen, the input resolution and display resolution are inconsistent. Generally, the inconsistency between the input resolution and the display resolution will cause inaccuracy in the calculation result of the second area.

In the following, the problems caused by the inconsistency between the input resolution and the display resolution will be described in detail in conjunction with specific embodiments. For a 4K display, if the input resolution of the network video is 1920*1080, the position information sent by the first controller is (0, 0, 20, 30), and correspondingly, the size information of the picture of the graphics layer signal is (20,30), position coordinate information (0,0). In a video signal with a resolution of 1920*1080, the screen size information of the graphics layer signal is (20, 30). However, during the video playback process, the video signal resolution needs to be converted into the display screen resolution. The resolution of the converted frame picture is 3840*2160. At this time, it is obviously inaccurate to determine the second region based on the size information of the graphics layer signal on the frame of 3840*2160 resolution as (20, 30) and the position coordinate information (0, 0).

In order to ensure the accuracy of the second area. Before motion compensation, according to the corresponding relationship between the resolution of the video layer signal and the resolution of the display screen, the position information sent by the first controller may be scaled, and then the second position information may be determined according to the scaled position information. area. Alternatively, determine the first area corresponding to the position information in the current frame of the display content; the second controller determines the second area outside the first area in the current frame of the display content; and then based on the resolution of the video layer signal For the correspondence relationship with the resolution of the display screen and the correspondence relationship between the resolution of the display screen, scaling processing is performed on the second area.

In the first case, the second controller first judges whether the resolution of the video layer signal is consistent with the resolution of the display screen; if it is inconsistent, the second controller uses the corresponding relationship between the resolution of the display screen and the resolution of the video layer signal, Perform zoom processing on the position information and the current frame display content, generate adjusted position information and adjusted current frame display content, and perform adjustments on the adjusted current frame display content except for the area corresponding to the adjusted position information. Motion compensation. For the second case, the second controller determines the first area corresponding to the position information in the display content of the current frame; the second controller determines the second area outside the first area in the display content of the current frame; The second controller determines whether the resolution of the video layer signal is consistent with the resolution of the display screen; if it is inconsistent, according to the correspondence between the resolution of the display screen and the resolution of the video layer signal, the The second area is zoomed.

In this way, the problem of inaccurate calculation results of the motion compensation area caused by the inconsistency of the resolution of the video layer signal and the resolution of the display screen can be avoided.

Finally, the second controller stitches the image of the second area after motion compensation and the image of the first area to generate the current frame display content after motion compensation, and output to the display screen for display.

In this embodiment, the calculated compensation frame is mixed with the corresponding area of the OSD layer to obtain the display content of the current frame after motion compensation, and then the mixed frame is inserted between the current frame of video picture and the previous frame (or next frame) of video picture Compensation frame. Furthermore, while the OSD layer signal is torn apart by the motion compensation processing technology, the motion compensation technology can better solve the problem of video signal jam and jitter.

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 the effect is relatively small, based on this situation, this embodiment provides yet another video data processing method .

FIG. 13 exemplarily shows a schematic flowchart of another video data processing method. As shown in Figure 13, the method mainly includes the following steps:

S1301: The first controller judges whether the display content of the current frame contains graphics layer data.

If the OSD layer is included, step S1302 is executed; otherwise, identification information that does not include the OSD layer can be added to the HDMI information packet, and the information packet and the current frame display content are transmitted to the main TV chip via HDMI.

S1302: If the graphics layer data is included, the first controller obtains the position information of the graphics layer corresponding to the graphics layer data in the display content of the current frame.

S1303: The first controller determines, according to the position information, whether 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 a preset area value.

Among them, the size of the preset area can be set according to user requirements. For example, if the area of the volume bar is small, its impact on the display screen may not be counted. If it is larger than the preset area, step S1304 is executed, otherwise, the graphics layer is ignored, and the area of other graphics layers in the current frame display content can be judged until the analysis of each graphics layer in the current frame display content is completed.

S1304: If it is greater than the preset area value, the first controller determines whether the graphics layer corresponding to the graphics layer data is a transparent layer.

When the graphics layer signal generator has a surface output, before superimposing the video layer signal and the graphics layer signal to generate the current frame display content, the graphics layer picture frame is intercepted by the graphics layer signal; then, according to the graphics layer picture frame According to the analysis result of the pixel value of the middle pixel, it is determined whether the graphics layer corresponding to the graphics layer signal is a transparent layer. For example, by detecting whether the pixel value of each pixel in the graphics layer picture frame is 0, that is, when the pixel value of each pixel meets R=0, B=0, and G=0, it indicates that the graphics layer signal corresponds to The graphic layer of is a transparent layer, but it is not limited to this detection method, and other methods, such as sub-region detection, can also be used.

If the graphics layer corresponding to the graphics layer signal is not a transparent layer, then step S1305 is executed; otherwise, the identification information that does not include the OSD layer can be added to the HDMI information packet, and the information packet is combined with the current frame display content through HDMI It is transmitted to the main TV chip, so that the second controller will perform motion compensation processing on all image areas corresponding to the video image signal according to the instruction information, and output the processed signal to the display screen for display, which can effectively avoid When the video image signal contains the graphics layer signal, the problem of reduced display picture quality caused by the motion compensation processing function is turned off.

Of course, if the influence of the transparent graphics layer is not considered, 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, the step can be directly executed S1305.

S1305: The first controller adds location information of the graphics layer corresponding to the graphics layer data to the HDMI information packet.

S1306: The first controller sends the HDMI information packet and the current frame display content to the second controller.

S1107: The second controller performs motion compensation on the image in the current frame display content other than the area corresponding to the position information, and does not perform motion compensation on the image in the current frame display content corresponding to the position information. Motion compensation.

It should be noted that in the specific implementation process, for the selection of the OSD layer area and transparency mentioned above, only one of the limiting conditions can be selected as needed to determine whether it is a valid OSD layer, for example, the OSD layer in the current frame When the number is small, when the number of bytes in the information packet can hold all the information, only whether it is a transparent layer is considered. When it is not a transparent layer, the identification information of the OSD layer and the position of each effective OSD layer will be included The information is added to the information packet of the HDMI protocol.

Based on the same concept as the above method, this embodiment also provides a video data processing device. The device is set in the first controller and includes a memory and a processor, wherein: the memory is used to store program codes;

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

Based on the same concept as the above method, this embodiment also provides a display device. The display device includes a first controller and a second controller, wherein the first controller and the second controller communicate through HDMI Line connection, the display content of the first controller is transmitted to the second controller through the HDMI cable for display, and the first controller is configured to:

Based on the exemplary embodiments shown in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application. In addition, although the disclosure in this application is introduced in accordance with one or several exemplary examples, it should be understood that various aspects of these disclosures can also be individually constituted as a complete technical solution.

It should be understood that the terms “first”, “second”, “third”, etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or Priority. It should be understood that the data used in this way can be interchanged under appropriate circumstances, for example, it can be implemented in an order other than those given in the illustration or description of the embodiments of the present application.

In addition, the terms "including" and "having" and any variations of them are intended to cover but not exclusively include. For example, a product or device including a series of components need not be limited to those clearly listed, but may include Other components that are not clearly listed or are inherent to these products or equipment.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the application range.

Claims

A video data processing method, characterized in that it is used for a first controller and a second controller, wherein the first controller and the second controller are connected through an HDMI cable, and the display of the first controller The content is transmitted to the second controller through the HDMI cable for display, and the method includes:

The first controller determines whether the display content of the current frame contains graphics layer data;

If the graphics layer data is included, the first controller adds the identification information including the graphics layer data to the HDMI information packet;

The first controller sends the HDMI information packet and the current frame display content to the second controller.
The method according to claim 1, wherein before sending the HDMI information packet and the current frame display content to the second controller, the method further comprises:

Acquiring, by the first controller, position information of the graphics layer corresponding to the graphics layer data in the current frame display content;

The first controller adds the location information to the HDMI information packet.
The method according to claim 2, wherein the position information includes coordinate information of the first vertex of the graphics layer and size information of the graphics layer, or the position information includes coordinate information of the first vertex of the graphics layer and the first vertex of the graphics layer. Coordinate information of two vertices, where the first and second vertices are diagonal vertices of the graphics layer.
The method according to claim 1, wherein before adding the identification information including the graphics layer data to the HDMI information packet, the method further comprises:

The first controller obtains position information of the graphics layer corresponding to the graphics layer data in the current frame display content

The first controller determines whether the relative area of the graphics layer corresponding to the graphics layer data in the video layer corresponding to the display content of the current frame is greater than a preset area value according to the position information;

If it is greater than the preset area value, the first controller adds the identification information including the graphics layer data to the HDMI information packet.
The method according to claim 1, wherein adding the identification information including the graphics layer data to the HDMI information packet comprises:

Acquiring, by the first controller, position information of the graphics layer corresponding to the graphics layer data in the current frame display content;

The first controller determines whether the relative area of the graphics layer corresponding to the graphics layer data in the video layer corresponding to the display content of the current frame is greater than a preset area value according to the position information;

If it is greater than the preset area value, the first controller determines whether the graphics layer corresponding to the graphics layer data is a transparent layer;

If it is not a transparent layer, the first controller adds the location information of the graphics layer corresponding to the graphics layer data to the HDMI information packet.
The method according to claim 2 or 5, wherein the method further comprises:

The second controller performs motion compensation on images in the current frame display content other than the area corresponding to the location information, and does not perform motion compensation on the images in the current frame display content corresponding to the location information. .
The method according to any one of claims 1 to 5, wherein the first controller judging whether the display content of the current frame contains graphics layer data includes:

The first controller determines whether the display content of the current frame contains graphics layer data according to the data output by the surface finger.
The method according to any one of claims 1 to 5, wherein the HDMI information packet is an SPD information packet and/or an NVBI information packet.
A video data processing device, characterized in that the device is set in a first controller and includes a memory and a processor, wherein:

The memory is used to store program code;

The processor is configured to read the program code stored in the memory and execute the method according to any one of claims 1 to 8.
A display device, characterized by comprising a first controller and a second controller, wherein the first controller and the second controller are connected through an HDMI cable, and the display content of the first controller is passed through The HDMI cable is transmitted to the second controller for display, and the first controller is configured to:

Determine whether the display content of the current frame contains graphics layer data;

If it contains graphics layer data, add the identification information containing the graphics layer data to the HDMI information packet;

Sending the HDMI information packet and the current frame display content to the second controller.