CN106941618B - Overscan self-adaptive display method and device - Google Patents
Overscan self-adaptive display method and device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
- H04N21/4355—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving reformatting operations of additional data, e.g. HTML pages on a television screen
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Abstract
The embodiment of the invention provides an overscan self-adaptive display method and device, which are applied to display equipment in communication connection with source equipment. And obtaining a scanning processing mode in the video information by receiving and analyzing the video information sent by the source equipment. And scanning and displaying the video data included in the video information according to the scanning processing mode. Therefore, the over-scanning self-adaptive display is realized, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of image display, in particular to an overscan self-adaptive display method and device.
Background
Existing televisions (e.g., internet televisions) are popular with users due to high configuration, high performance, and low cost. Besides watching daily television programs, the television can also be used as display equipment to display images sent by the source equipment, so that the user can enjoy the super-strong fun of surfing the internet, shopping, playing games and the like on a large screen.
However, the conventional television cannot perform overscan or underscan processing adaptively according to an image signal sent by a source device, generally, the image is subjected to the overscan processing by default, which may cause a phenomenon that an image sent by the source device is not displayed completely (the periphery of the image is intercepted, for example, when a notebook computer receives a television, an edge of a desktop may be outside a screen), and seriously affect the use experience of a user.
Disclosure of Invention
In order to overcome the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an overscan adaptive display method and apparatus, which can perform adaptive display according to whether a signal sent by a source device is overscan or underscan, thereby improving user experience.
The preferred embodiment of the present invention provides an overscan adaptive display method, which is applied to a display device in communication connection with a source device, and the method includes:
receiving video information sent by the source equipment;
analyzing a scanning processing mode in video information, and scanning video data in the video information according to the scanning processing mode, wherein the scanning processing mode comprises an overscan mode and an underscan mode;
and displaying the scanned video data.
The preferred embodiment of the present invention further provides an overscan adaptive display apparatus, which is applied to a display device communicatively connected to a source device, and includes:
the receiving module is used for receiving the video information sent by the source equipment;
the processing module is used for analyzing and obtaining a scanning processing mode in the video information and scanning and processing the video data in the video information according to the scanning processing mode, wherein the scanning processing mode comprises an overscan mode and an underscan mode;
and the display module is used for displaying the video data after the scanning processing.
Compared with the prior art, the invention has the following beneficial effects:
the display equipment receives video information sent by the source equipment, and the video information comprises video data and a scanning processing mode corresponding to the video data. And analyzing the received video information to obtain a scanning processing mode in the video information. And scanning and displaying the video data according to the processing mode. Therefore, the display equipment performs corresponding processing on the received video data according to the signal sent by the source equipment, so that the video data is displayed in a self-adaptive mode, and the user experience is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of communication between a display device and a source device according to a preferred embodiment of the present invention.
Fig. 2 is a block schematic diagram of the display device shown in fig. 1.
Fig. 3 is a block schematic diagram of the source device shown in fig. 1.
Fig. 4 is a flowchart illustrating an overscan adaptive display method applied to the display apparatus shown in fig. 1 according to a preferred embodiment of the present invention.
Fig. 5 is a flowchart illustrating the sub-steps included in step S120 in fig. 4.
Fig. 6 is a flowchart illustrating sub-steps included in sub-step S122 in fig. 5.
Fig. 7 is another flowchart illustrating the sub-steps included in step S120 in fig. 4.
Fig. 8 is a block diagram of an overscan adaptive display device according to a preferred embodiment of the present invention.
Icon: 100-a display device; 110 — a first memory; 120-a first storage controller; 130-a first processor; 200-a source device; 210-a second memory; 220-a second storage controller; 230-a second processor; 300-overscan adaptive display device; 310-a receiving module; 320-a processing module; 321-an analysis submodule; 322-a scanning sub-module; 330-display module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a schematic view illustrating a communication between a display device 100 and a source device 200 according to a preferred embodiment of the invention. The display device 100 is communicatively connected to the source device 200, so that the display device 100 performs data interaction with the source device 200, and the display device 100 displays video data transmitted by the source device 200. In the embodiment of the present invention, the display device 100 may be, but is not limited to, a television, a micro-projector, etc. The source device 200 may be, but is not limited to, a set-top box, a blu-ray player, a signal generator, etc.
Referring to fig. 2, fig. 2 is a block diagram of the display apparatus 100 shown in fig. 1. The display device 100 includes: the display device comprises an overscan adaptive display device 300, a first memory 110, a first memory controller 120 and a first processor 130.
The elements of the first memory 110, the first memory controller 120 and the first processor 130 are electrically connected directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The first memory 110 stores therein the overscan adaptive display device 300, and the overscan adaptive display device 300 includes at least one software function module which can be stored in the first memory 110 in the form of software or firmware (firmware). The first processor 130 executes various functional applications and data processing, i.e., implements the overscan adaptive display method in the embodiment of the present invention, by running software programs and modules stored in the first memory 110, such as the overscan adaptive display apparatus 300 in the embodiment of the present invention.
The first Memory 110 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The first memory 110 is used for storing a program, and the first processor 130 executes the program after receiving the execution instruction. Access to the first memory 110 by the first processor 130 and possibly other components may be under the control of the first memory controller 120.
The first processor 130 may be an integrated circuit chip having signal processing capabilities. The first Processor 130 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like. But may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be appreciated that the configuration shown in fig. 2 is merely illustrative, and that the display device 100 may include more or fewer components than shown in fig. 2, or have a different configuration than shown in fig. 2. The components shown in fig. 2 may be implemented in hardware, software, or a combination thereof.
Referring to fig. 3, fig. 3 is a block diagram of the source device 200 shown in fig. 1. The source device 200 may include a second memory 210, a second memory controller 220, and a second processor 230.
The second memory 210, the second memory controller 220, and the second processor 230 have the same hardware configuration as the first memory 110, the first memory controller 120, and the first processor 130 in fig. 2, and thus are not described herein.
Referring to fig. 4, fig. 4 is a flowchart illustrating an overscan adaptive display method applied to the display apparatus 100 shown in fig. 1 according to a preferred embodiment of the present invention. The display device 100 is communicatively coupled to a source device 200. The flow in fig. 4 may be implemented by the first processor 130. The specific flow of the overscan adaptive display method is described in detail below.
Step S110, receiving the video information sent by the source device 200.
In this embodiment, the step of receiving the video information sent by the source device 200 includes: and receiving video information corresponding to the scanning mode supported by the display device 100, which is sent by the source device 200 according to the extended display identification data.
In this embodiment, when the source device 200 accesses the display device 100, the display device 100 sends extended display identification data to the source device 200, so that the source device 200 obtains a scanning mode supported by the display device 100 and a video type corresponding to the scanning mode. The source device 200 sends video information to the display device 100 according to the scanning mode supported by the display device 100 and the video type corresponding to the scanning mode.
The display device 100 stores the extended display identifier data, and the specific storage location may be, but is not limited to, Nand Flash (Flash Memory), E2PROM (Electrically Erasable programmable read-Only Memory), SDRAM (Synchronous Dynamic random access Memory), and the like.
The Extended Display Identification Data (EDID) is a VESA (Video Electronics Standards Association) standard Data format, and includes not only relevant monitors (e.g., notebook/television/micro-projection) and performance parameters thereof, but also manufacturer information, such as timing (i.e., preferredtimekeeping), Monitor Name (Monitor Name), supported timing list, supported Audio information, vendor information, maximum image size, color setting, manufacturer preset, and frequency range limitation, which are desired to be preferentially transmitted by the source device 200.
And step S120, analyzing a scanning processing mode in the video information, and scanning the video data in the video information according to the scanning processing mode.
In this embodiment, the scan processing mode includes an overscan mode and an underscan mode. The video information includes video data and auxiliary video information frames transmitted by the source device 200. The video data refers to video content to be played, and the auxiliary video information frame comprises auxiliary information of various audios and videos. In the implementation manner of this embodiment, the auxiliary video information frame is sent from the source device 200 to the display device 100 in an InfoFrame manner. The standard defines 6 infoframes:
Vendor-Specific InfoFrame(0x01),
Auxiliary Video Information InfoFrame(0x02),
Source Product Description InfoFrame(0x03)，
Audio InfoFrame(0x04)，
MPEG Source InfoFrame(0x05)，
and NTSC VBI InfoFrame(0x06)
in the implementation manner of this embodiment, the Auxiliary video information frame is an audiovideo information frame, which is abbreviated as AVI InfoFrame. When the source device 200 confirms that the display device 100 supports receiving or parsing the auxiliary video information frame, the source device 200 transmits the auxiliary video information frame corresponding to each frame of video data before transmitting the video data. The auxiliary video Information frame includes Information related to the video data of the next frame, such as Scan Information (e.g., underscan or overscan), ColorSpace (e.g., RGB/YCBCR), Picture Aspect Ratio (e.g., 4:3/16:9), and the like.
In this embodiment, the source device 200 sets the value of the scan field in the auxiliary video information frame according to the overscan/underscan information of the transmitted video data. For example, the value of the scan field is represented by the value of S in the sfield, that is, the value of S can be used to indicate whether the video data needs to be over-scanned or under-scanned.
Referring to fig. 5, a flowchart of the sub-steps included in step S120 in fig. 4 is shown. The step S120 may include a substep S121 and a substep S122.
The substep S121 parses the value of the scan field of the auxiliary video information frame transmitted by the source device 200.
In this embodiment, after receiving the auxiliary video information frame, the display device 100 parses the value of the scan field and the information (e.g., color space, aspect ratio, etc.) of the video data corresponding to the auxiliary video information frame, and completes configuration according to the information of the video data, thereby displaying the scanned video data.
In the substep S122, corresponding scanning processing is performed on the video data corresponding to the auxiliary video information frame according to the value of the scanning domain.
In this embodiment, the value of the scanning field S may be a first preset value or a second preset value, and different values correspond to different scanning modes. Please refer to the following steps for the case of realizing different scanning modes for different values.
Referring to fig. 6, fig. 6 is a flowchart illustrating sub-steps included in sub-step S122 in fig. 5. The sub-step S122 may include a sub-step S1221 and a sub-step S1222.
When the value of the scan field S is a first preset value, the sub-step S1221 is performed.
The sub-step S1221 performs an overscan process on the received video data.
In an embodiment of the present embodiment, the first preset value is set to 1. When AVI S is analyzed to be 1 by the display device 100, configuring an overscan bit in a register corresponding to overscan in a Chip (System on Chip, SoC) to be 1 by software, and starting an overscan function of the display device 100 to perform overscan processing on received video data.
When the value of the scan field S is a second preset value, substep S1222 is performed.
The sub-step S1222 performs underscan processing on the received video data.
In an embodiment of the present embodiment, the second preset value is set to 2. When AVI S is obtained by the analysis of the display device 100 is 2, an overscan bit in a register corresponding to overscan in a Chip (System on Chip, SoC) is configured to be 0 through software, and the overscan function of the display device 100 is turned off to perform underscan processing on received video data.
In this embodiment, the extended display identification data includes a Vendor Specific Data Block (VSDB). The vendor-specific data blocks are used to characterize the display device 100 as having the capability to receive and parse frames of auxiliary video information. Thus, the source device 200 detects the VSDB in the extended display identification data in the display device 100, and determines that the display device 100 has the capability of receiving and parsing InfoFrame. The display apparatus 100 may also configure information such as Deep Color Depth/3D support in the vendor specific information. The video signal is composed of pixels, each pixel is composed of RGB or YUV 3 sub-pixel sub-pixels, Color Depth means that each sub-pixel is composed of 8 bits, so that 2 to the power of 8, namely 256 data size is obtained, and the data size is higher than 8 bits, for example, 10 bits/12 bits/16 bits, namely Deep Color Depth. The higher the value, the larger the amount of data per pixel, the better the imaging quality. The display device 100 may configure Deep Color Depth/3D as: the Deep Color Depth is 10bit/12bit/16 bit; 3D: frame Packing/Top and Bottom/Side-by-Side, etc., the 3D configuration may indicate that the display device 100 supports the following 3D transmission formats: frame packing, top-bottom, side-by-side, etc.
In this embodiment, the extended display identification data further includes video attribute information, where the video attribute information includes a video type supported by the display device 100 and a scanning processing mode corresponding to the video type.
In this embodiment, a Video Capability Data Block (VCDB) is newly added to an extension Block (Block) in the extended display identification Data, so that the extended display identification Data includes Video attribute information. Thereby enabling the source device 200 to be supported by the display device 100 for different kinds of under-scanning or over-scanning. The concrete configuration is as follows:
PT timing:Support both over-and underscan
IT timing:Always Underscaned
CE timing:Support both over-and underscan
namely:
for PT timing, the display device 100 supports both its under-scan or over-scan operations;
for IT timing, the display apparatus 100 always performs an under-scanning operation thereon;
for CE timing, the display device 100 supports either its under-scan or over-scan operation.
Referring to fig. 7, fig. 7 is another flow chart illustrating the sub-steps included in step S120 in fig. 4. The step S120 may further include a substep S125 and a substep S126.
In the sub-step S125, when the value of the scan field is a third preset value or the display device 100 does not receive the auxiliary video information frame, if the received video type is the first preset video type, the received video data is subjected to an overscan process.
In this embodiment, when the value of the scan field obtained by parsing is the third preset value (when the third preset value is set to 0, AVI S is obtained by parsing is 0) or no auxiliary video information frame is received for some reason (for example, signal failure), the display device 100 performs scan processing on the video data according to the video type of the received video data. And when the video type is a first preset type, performing overscan processing on the received video data. The first preset type is CEtiming, CE refers to Consumer Electronics (Consumer Electronics), and CE timing refers to a type supported by Consumer Electronics (e.g., an OTT box, a DVD player, etc.), such as 1080p @60 Hz.
In the sub-step S126, when the received video type is the second preset video type, the underscan processing is performed on the received video data.
In this embodiment, when the value of the scan field obtained by parsing is the third preset value (when the third preset value is set to 0, the AVI S obtained by parsing is 0) or no auxiliary video information frame is received for some reason (for example, a signal failure), the display device 100 performs underscan processing on the received video data when the video type of the video data is the second preset type. The second preset type is IT timing, and refers to a type supported by a PC (Personal Computer), i.e., a notebook/desktop Computer, etc.
In this embodiment, the source device 200 sends video data according to a video type that is sent preferentially and is included in the extended display identification data, where the video type (preferred sending, PT timing) that is sent preferentially may be CE timing or IT timing.
In this embodiment, when no video attribute information is added and the received video type is the second preset video type, the underscan processing is performed on the received video data.
In the present embodiment, when no video attribute information is added to the extended display identification data, the display apparatus 100 performs corresponding scanning processing on the video data according to the received video type. When the video type is the first preset video type, the display device 100 performs an overscan process on the received video data. When the video type is the second preset video type, since the second preset video type needs to be under-scanned, the display device 100 modifies the extended display identification data in advance, so that the source device 200 considers that the video data of the second preset video type will be under-scanned, and the display device 100 performs the under-scanning after receiving the video data. The modification may be to set underscan in the extension display identification data to 1, that is, the underscan is 1.
Step S130, displaying the scanned video data.
In this embodiment, the display device 100 displays the video data after completing the scanning process and the corresponding display configuration for the received video data.
In an embodiment of the present embodiment, the display apparatus 100 performs data communication with the source apparatus 200 through a high definition multimedia interface. Among them, the High Definition Multimedia Interface (HDMI) is an audio/video interface supporting uncompressed full digital. When the source device 200 accesses the display device 100 through the high-definition multimedia interface, the source device 200 obtains the extended display identification data of the display device 100 through a DDC pin in the HDMI line, thereby obtaining a specific audio/video support condition of the display device 100, and preferentially sending Preferred Timing configured in the extended display identification data.
The interaction flow between the display device 100 and the source device 200 is as follows. When the display device 100 detects a signal on the 5V line of the HDMICable (Cable), the display device 100 transmits information to the source device 200 through the HPD line of the HDMI Cable at an interval of 100 to 200ms from a low level to a high level. When the source device 200 detects the above change of the HPD line, the source device 200 reads the extended display identification data of the display device 100 through a DDC (Direct Digital Control) line (2 lines, one clk (Clock) line, one data (data) line, which is i2c line in essence) in the HDMI Cable.
In the embodiment of this embodiment, the extended display identification data is stored in different locations, and the manner in which the source device 200 acquires the extended display identification data is also different. When the extended display identification data is stored in the Nand Flash, the extended display identification data is loaded into a system memory from the Nand Flash when in use; when the extended display identification data is stored in the E2PROM, each HDMI port of the display device 100 corresponds to 1E 2PROM, and the source device 200 directly reads the extended display identification data from the E2PROM associated with the corresponding HDMI port; when the extended display identification data is stored in the SDRAM, the extended display identification data is stored in the array, and when the extended display identification data enters the HDMI channel, the EDID data in the array is copied to the SDRAM.
In this embodiment, the display device 100 is provided with an auto-scan option, an over-scan option, and an under-scan option, and the method further includes:
responding to the selection operation of the automatic scanning option, and performing scanning adaptive processing on the received video data to enable the processed video data to be displayed on the display device 100 in an adaptive mode;
responding to the selection operation of the overscan option, and performing overscan processing on the received video data;
and responding to the selection operation of the under-scanning option, and performing under-scanning processing on the received video data.
In an implementation manner of this embodiment, the auto-scan option, the over-scan option, and the under-scan option may be set on a User Interface (UI) of the display device 100. The UI design is specifically as follows:
AUTO, display device 100 adaptation
over scan (non full screen display), the full screen display of the display device 100 is off
underscan (full screen display), the display device 100 is turned on for full screen display
Thus, the AUTO option may be selected when the user is unaware of the underscan or overscan processing of the video signal transmitted by the source device 200. When the user determines that the video signal transmitted by the source device 200 is under-scanned or over-scanned, a corresponding processing option is selected on the display device 100:
when the overscan is selected, the display device 100 may turn off the under-scan or overscan adaptive function, and always perform overscan processing on the received HDMI signal;
when the under-scan is selected, the display apparatus 100 may turn off the under-scan or over-scan adaptive function, and always perform the under-scan processing on the received HDMI signal.
In this embodiment, when the display device 100 configures the overtscan/underscan, a prompt is given to the user, as described below.
When the Scan Information is analyzed by the display device 100 as overscan, the display device 100 registers are configured, and the display device 100 starts the overscan mode. Meanwhile, the drive layer sends overscan configuration information to the UI, and the UI gives the following prompts to the user after receiving the information: "has automatically switched for you to non-full screen display (overscan) mode".
When the Scan Information parsed by the display device 100 is underscan, the display device 100 registers are configured, and the display device 100 starts the under-Scan mode. Meanwhile, the driving layer sends an under-scanning configuration message to the UI, and the UI gives the following prompts to the user after receiving the event: "has automatically switched for you to full screen display (underscan) mode".
In addition, only when the Scan Information changes, the configuration action corresponding to the Scan Mode (Scan type) is performed and the corresponding Scan Operation message is sent to the UI for prompting, that is:
the Scan Information corresponding to the current video data is over Scan, and if the Scan Information corresponding to the next video data is also over Scan, the display device 100 does not perform the actions of over Scan configuration and sending a message to the UI for reminding. When the video data is under-scanned, the above operation is performed.
Referring to fig. 8, fig. 8 is a block diagram of an overscan adaptive display device 300 according to a preferred embodiment of the present invention. The overscan adaptive display apparatus 300 is applied to the display device 100 communicatively connected to the source device 200. The overscan adaptive display device 300 includes: a receiving module 310, a processing module 320 and a display module 330.
The receiving module 310 is configured to receive the video information sent by the source device 200.
The manner of receiving the video information sent by the source device 200 by the receiving module 310 includes:
and receiving video information corresponding to the scanning mode supported by the display device 100, which is sent by the source device 200 according to the extended display identification data. In this embodiment, the steps performed by the receiving module 310 may refer to the detailed description of step S110 shown in fig. 4.
The processing module 320 is configured to analyze a scanning processing mode in the obtained video information, and perform scanning processing on video data in the video information according to the scanning processing mode, where the scanning processing mode includes an overscan mode and an underscan mode.
The processing module 320 includes: an analysis submodule 321 and a scan submodule 322.
The parsing sub-module 321 is configured to parse a value of a scan field of the auxiliary video information frame sent by the source device 200.
The scanning submodule 322 is configured to perform corresponding scanning processing on the video data corresponding to the auxiliary video information frame according to the value of the scanning domain.
The manner of performing, by the scanning sub-module 322, corresponding scanning processing on the video data corresponding to the auxiliary video information frame according to the value of the scanning domain includes:
when the value of the scanning domain is a first preset value, performing overscan processing on the received video data;
and when the value of the scanning domain is a second preset value, performing underscanning on the received video data.
In this embodiment, the display device 100 stores extended display identification data, which includes vendor-specific data blocks for characterizing the display device 100 having the capability of receiving and parsing auxiliary video information frames.
In this embodiment, the exhibition display identification data further includes video attribute information, where the video attribute information includes a video type supported by the display device 100 and a scanning processing mode corresponding to the video type.
The processing module 320 is further configured to:
when the value of the scanning field is a third preset value or the display device 100 does not receive the auxiliary video information frame, performing overscan processing on the received video data when the received video type is a first preset video type;
and when the received video type is a second preset video type, performing underscan processing on the received video data.
In this embodiment, the steps performed by the processing module 320 may refer to the detailed description of step S120 shown in fig. 4.
The display module 330 is configured to display the scanned video data.
In this embodiment, the steps performed by the display module 330 can refer to the detailed description of step S130 shown in fig. 4.
In summary, embodiments of the present invention provide an overscan adaptive display method and apparatus, which are applied to a display device communicatively connected to a source device. And the display equipment receives the video information sent by the source equipment, then performs corresponding scanning processing on the video data in the video information according to the scanning processing mode in the video information, and displays the processed video data on the display equipment in a self-adaptive manner, thereby improving the user experience.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An overscan adaptive display method, wherein the method is applied to a display device which is in communication connection with a source device, and wherein the method comprises:
receiving video information sent by the source equipment;
analyzing a scanning processing mode in video information, and scanning video data in the video information according to the scanning processing mode, wherein the scanning processing mode comprises an overscan mode and an underscan mode;
if the scanning processing mode is not obtained, when the video type of the received video data is a first preset video type, performing overscanning processing on the received video data; when the video type of the received video data is a second preset video type, performing underscan processing on the received video data;
displaying the video data after scanning processing;
the display device stores extended display identification data, the extended display identification data comprise video attribute information, and the video attribute information comprises video types supported by the display device and scanning processing modes corresponding to the video types;
the step of receiving the video information sent by the source device comprises:
and receiving video information corresponding to the scanning mode supported by the display equipment and sent by the source equipment according to the extended display identification data.
2. The method of claim 1, wherein the video information includes video data and auxiliary video information frames sent by the source device, the analyzing obtains a scanning processing manner in the video information, and the scanning processing of the video data in the video information according to the scanning processing manner includes:
analyzing the value of the scanning domain of the auxiliary video information frame sent by the source equipment;
and performing corresponding scanning processing on the video data corresponding to the auxiliary video information frame according to the value of the scanning domain.
3. The method according to claim 2, wherein the step of performing the corresponding scanning process on the video data corresponding to the auxiliary video information frame according to the value of the scanning field comprises:
when the value of the scanning domain is a first preset value, performing overscan processing on the received video data;
and when the value of the scanning domain is a second preset value, performing underscanning on the received video data.
4. The method of any of claims 1-3, wherein the extended display identification data further comprises a vendor specific data block that characterizes the display device as having auxiliary video information frame receiving and parsing capabilities.
5. The method of claim 2, further comprising:
when the value of the scanning domain is a third preset value, and the video type of the received video data is a first preset video type, performing overscan processing on the received video data;
and when the video type of the received video data is a second preset video type, performing underscan processing on the received video data.
6. The method of claim 1, wherein:
the display device is in data communication with the source device through a high-definition multimedia interface.
7. An overscan adaptive display apparatus, the apparatus being applied to a display device communicatively coupled to a source device, the apparatus comprising:
the receiving module is used for receiving the video information sent by the source equipment;
the processing module is used for analyzing and obtaining a scanning processing mode in the video information and scanning and processing the video data in the video information according to the scanning processing mode, wherein the scanning processing mode comprises an overscan mode and an underscan mode;
the processing module is further configured to perform overscan processing on the received video data when the video type of the received video data is a first preset video type when the scanning processing mode is not obtained; when the video type of the received video data is a second preset video type, performing underscan processing on the received video data;
the display module is used for displaying the video data after the scanning processing;
the display device stores extended display identification data, the extended display identification data comprise video attribute information, and the video attribute information comprises video types supported by the display device and scanning processing modes corresponding to the video types;
the step of receiving the video information sent by the source device comprises:
and receiving video information corresponding to the scanning mode supported by the display equipment and sent by the source equipment according to the extended display identification data.
8. The apparatus according to claim 7, wherein the video information comprises video data and auxiliary video information frames sent by the source device, and the processing module comprises a parsing sub-module and a scanning sub-module;
the analysis submodule is used for analyzing the value of the scanning domain of the auxiliary video information frame sent by the source equipment;
and the scanning submodule is used for carrying out corresponding scanning processing on the video data corresponding to the auxiliary video information frame according to the value of the scanning domain.
9. The apparatus according to claim 8, wherein the manner of performing, by the scanning sub-module, the corresponding scanning processing on the video data corresponding to the auxiliary video information frame according to the value of the scanning field comprises:
when the value of the scanning domain is a first preset value, performing overscan processing on the received video data;
and when the value of the scanning domain is a second preset value, performing underscanning on the received video data.
10. The apparatus according to any of claims 7-9, wherein the extended display identification data further comprises a vendor specific data block for characterizing the display device with auxiliary video information frame receiving and parsing capabilities.
11. The apparatus of claim 8, wherein the processing module is further configured to:
when the value of the scanning domain is a third preset value, and the video type of the received video data is a first preset video type, performing overscan processing on the received video data;
and when the video type of the received video data is a second preset video type, performing underscan processing on the received video data.
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