CN108235097A - It is a kind of that there is the display of audio/video encoding/decoding - Google Patents
It is a kind of that there is the display of audio/video encoding/decoding Download PDFInfo
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- CN108235097A CN108235097A CN201810239115.4A CN201810239115A CN108235097A CN 108235097 A CN108235097 A CN 108235097A CN 201810239115 A CN201810239115 A CN 201810239115A CN 108235097 A CN108235097 A CN 108235097A
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- 230000005540 biological transmission Effects 0.000 claims description 45
- 230000005236 sound signal Effects 0.000 claims description 39
- 230000008054 signal transmission Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- 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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
-
- 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
-
- 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
-
- 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
- H04N21/440218—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 by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The present invention propose it is a kind of there is the display of audio/video encoding/decoding, including display screen and sound equipment output, display main board, display control input.The modules such as display main board includes video input interface, image procossing, driving output, audio-visual synchronization coding, audio-visual synchronization decoding, audio input interface, network interface are output and input.The control input of display includes the response and processing that are integrated in the input such as button, switch of outside display and internal microcontroller inputs these.The present invention uses hardware based audio/video coding, keeps the resolution ratio and frame per second identical with input video source signal, accomplishes that finding is recorded, and the audio, video data after coding can be used for teletransmission or storage；The hardware decoding end of audio and video relative to the softwares such as VLC decode, delay it is small, be detached from host, image quality be improved significantly.
Description
Technical field
The present invention relates to field of display, and in particular to a kind of display with audio/video coding and decoding function.
Background technology
In today's society, the display technology of terminal is widely used.In medical field, it is desirable to can will show
Show the image occurred on device, such as the precious image transmission such as operation video frequency is to elsewhere, for holding a consultation and teaching.But
Traditional display can only be as the display effect of a terminal, can not meet demand.
Meanwhile with the continuous growth of the demands such as video on demand, remote medical consultation with specialists teaching, for the delay requirement of video teletransmission
Higher and higher, the common soft decoding delay based on VLC on PC hosts can not meet demand.Meanwhile traditional display
The decoded function of video was not made.
Invention content
The present invention provides one kind to solve the above problems, meet the inventions such as video on demand, remote medical consultation with specialists teaching the needs of
There is the display of audio/video encoding/decoding.
The present invention solves its technical problem and is achieved through the following technical solutions：
It is a kind of that there is the display of audio/video encoding/decoding, including：
Audio signal and vision signal are transferred directly to the audio video transmission unit of display screen and sound equipment；
The audio/video decoding transmission unit of display screen and sound equipment is transferred to after audio signal and vision signal are decoded；
The sound gone out after audio signal in audio video transmission unit and vision signal are encoded by network transmission
Video coding transmission unit；
For inputting the control input module of corresponding operating；
For response control input module input and with audio/video coding transmission unit carry out video parameter transmission list
Piece machine.
Further, the audio video transmission unit includes video input interface, and the video input interface connects outside
The vision signal of mouth input is transferred to image processing module after completing format conversion, and described image processing module is regarded what is received
It is exported after audio signalprocessing is complete and gives multi-channel separate screen module, the vision signal received is copied as two by the multi-channel separate screen module
Part, portion is transferred to driving output module for driving screen display, another is transferred to the progress of audio/video coding transmission unit
It is exported after coding；
The audio video transmission unit further includes audio input interface, and the audio input interface inputs external interface
Audio signal transmission exports, and the audio that the audio input interface inputs external interface to driving output module for sound equipment
Signal is also transmitted to the synchronous coding output that audio/video coding transmission unit carries out audio signal, vision signal.
Further, the audio/video coding transmission unit includes video format modular converter, the video format conversion
The vision signal received from multi-channel separate screen module is converted to the video format for being suitble to coding, and regarding converted form by module
Frequency signal transmission gives audio-visual synchronization coding module, and the audio-visual synchronization coding module compiles the vision signal received
Code, and the audio-visual synchronization coding module also encodes the audio signal received from audio input interface, the sound
Audio video synchronization coding module will encode the audio signal completed and video signal transmission gives network interface output module, network interface output module
The audio signal received and vision signal are gone out by network transmission.
Further, the audio/video decoding transmission unit includes network port input module, and the network port input module will be outer
The audio signal and video signal transmission of portion's input are decoded to audio/video decoder, and audio/video decoder is by decoded sound
Frequency signal and video signal transmission are used to that screen display and sound equipment be driven to export to driving output module.
Further, the network interface output module is passed through the audio signal after coding and vision signal using network chip
Network interface exports, and the network port input module also sends audio signal and vision signal to audio/video decoding mould using network chip
Block.
Further, the microcontroller uses STM32, and microcontroller connection audio-visual synchronization coding module.
Further, the control input module includes the input unit for being integrated in outside display.
Beneficial effects of the present invention are：
Compared with prior art, the present invention uses hardware based audio/video coding, keep the resolution ratio identical with source with
Frame per second accomplishes that finding is recorded, and the Voice and Video data after coding can be used for teletransmission or storage；The hardware decoding of audio and video
End relative to the softwares such as VLC decode, delay it is small, be detached from host, image quality be improved significantly；It is meanwhile this with audio and video volume
The display of decoding function also has many advantages, such as conveniently moving, efficient.
Description of the drawings
Fig. 1 is the circuit modular structure figure of the display interior of the present invention；
Fig. 2 is the embodiment of the present invention schematic diagram.
Specific embodiment
Below by specific embodiment, the invention will be further described, and following embodiment is descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
As shown in Figure 1, a kind of have the function of the display of audio/video encoding/decoding, including：
Audio signal and vision signal are transferred directly to the audio video transmission unit of display screen and sound equipment；
The audio/video decoding transmission unit of display screen and sound equipment is transferred to after audio signal and vision signal are decoded；
The sound gone out after audio signal in audio video transmission unit and vision signal are encoded by network transmission
Video coding transmission unit；
For inputting the control input module of corresponding operating, control input module includes being integrated in the input of outside display
Device, input unit include being integrated in the inputs such as button, the switch of outside display；
For response control input module input and with audio/video coding transmission unit carry out video parameter transmission list
Piece machine.
Audio video transmission unit includes video input interface, and the vision signal that video input interface inputs external interface is complete
Be transferred to image processing module after into format conversion, image processing module by the video frequency signal processing received it is complete after export to more
The vision signal received is copied as two parts by road split screen module, multi-channel separate screen module, and portion is transferred to driving output module and uses
In driving screen display, another is transferred to after audio/video coding transmission unit is encoded and exports；
Audio video transmission unit further includes audio input interface, the audio signal that audio input interface inputs external interface
Driving output module is transferred to export for sound equipment, and the audio signal that external interface inputs is also transmitted to by audio input interface
Audio/video coding transmission unit carries out the synchronous coding output of audio signal, vision signal.
Audio/video coding transmission unit includes video format modular converter, and video format modular converter will be from multi-channel separate screen mould
The vision signal that block receives is converted to the video format for being suitble to coding, and by the video signal transmission of converted form to audio and video
Synchronous coding module, audio-visual synchronization coding module encode the vision signal received, and audio-visual synchronization coding mould
Block also encodes the audio signal received from audio input interface, and audio-visual synchronization coding module will encode the sound completed
Frequency signal and video signal transmission give network interface output module, and network interface output module will be received using the network chip of RTL8211F
Audio signal and vision signal gone out by network transmission.
Audio/video decoding transmission unit includes network port input module, and network port input module utilizes the network chip of RTL8211F
By externally input audio signal and video signal transmission to audio/video decoder, audio/video decoder is used to transmit what is come in
Audio signal and vision signal are reduced to the audio and video form of standard.Audio/video decoder is by decoded audio signal and video
Signal transmission is used to that screen display and sound equipment be driven to export to driving output module.
Microcontroller of the present invention uses STM32, and microcontroller connection audio-visual synchronization coding module.
The principle of the present invention is：
The video card of PC hosts is accessed on the video input interface of the display system, and video input interface will be to input signal
Be sent to image processing module after completing electrical standard conversion, sequential adjustment, image processing module to the video source signal of input into
The simple image procossing of row (such as：The gamma correction of display) after be transmitted to multi-channel separate screen module.Multi-channel separate screen module will be defeated
The vision signal entered is divided into two-way, is shown all the way eventually for upper screen, is used to encode unofficial biography all the way.And drive output module that can connect
The vision signal from video input interface and the audio signal from audio input interface are received, can also be received from audio and video solution
The decoded audio signal of code device and vision signal, for display screen and sound equipment to be driven to export.When user want be in display
During existing image coding unofficial biography, pass through the button of outside display, switch etc. and control input module and microcontroller, coordinate display
After the OSD menu selection at interface, the audio signal of input and vision signal are carried out volume H.265 by audio-visual synchronization coding module
Code, and pass through network interface output module unofficial biography.When user wants to carry out video on demand, video transmission etc. on the display, pass through
After control input module assigns corresponding instruction, audio/video decoding module will be automatically switched to by driving the signal source of output module
Output.
As shown in Fig. 2, the performance of the coding and decoding video in the implementation case can reach [email protected] video is defeated
Incoming interface, audio input interface, image procossing, multi-channel separate screen, driving exports, the function of video format modular converter is all put into
FPGA (XC7A200T-2FFG1156C) is inner.The vision signal of video input interface finally drives output interface by LVDS all the way
Display screen is lighted, another way gives audio/video coding module.Audio/video coding module uses the scheme of Hi3519, due to Hi3519
The performance of video coding interface the inputs of RAW forms can only be supported in the coding input for reaching 4K, so needing in FPGA
In make corresponding RAW format conversions just can be with.Audio and video after Hi3519 codings are RGMII forms, pass through the net of RTL8211F
It is exported again by network interface connector after network chip.In the decoding access of audio and video, which can finally lead to
It crosses LVDS interface and lights display screen.In the access of audio/video decoding, the signal that network port input module receives input is given
The network chip of RTL8211F is converted to the audio/video decoding chip that RGMII forms give Hi3536, Hi3536 chips output
Video format be BT1120 forms input.The input interface of audio completes the AD conversion of audio signal using ADAU1761,
The DA that audio signal is completed using ADAU1761 when driving sound equipment is converted.Microcontroller uses to be STM32, controls in FPGA
The switch of each link in face and switching, and communicated with Hi3519 chips by SPI interface, to complete the biography of various video parameters
It passs.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of have the function of the display of audio/video encoding/decoding, it is characterised in that：Including：
Audio signal and vision signal are transferred directly to the audio video transmission unit of display screen and sound equipment；
The audio/video decoding transmission unit of display screen and sound equipment is transferred to after audio signal and vision signal are decoded；
The audio and video gone out after audio signal in audio video transmission unit and vision signal are encoded by network transmission
Coding transmission unit；
For inputting the control input module of corresponding operating；
For response control input module input and with audio/video coding transmission unit carry out video parameter transmission microcontroller.
2. a kind of as described in claim 1 have the function of the display of audio/video encoding/decoding, it is characterised in that：The audio and video
Transmission unit includes video input interface, and the vision signal that the video input interface inputs external interface completes format conversion
After be transferred to image processing module, described image processing module by the video frequency signal processing received it is complete after export to multi-channel separate screen
The vision signal received is copied as two parts by module, the multi-channel separate screen module, and portion is transferred to driving output module and is used for
Screen display is driven, another is transferred to after audio/video coding transmission unit is encoded and exports；
The audio video transmission unit further includes audio input interface, the audio that the audio input interface inputs external interface
Signal transmission exports, and the audio signal that the audio input interface inputs external interface to driving output module for sound equipment
It is also transmitted to the synchronous coding output that audio/video coding transmission unit carries out audio signal, vision signal.
3. a kind of as claimed in claim 2 have the function of the display of audio/video encoding/decoding, it is characterised in that：The audio and video
Coding transmission unit includes video format modular converter, and the video format modular converter is regarded what is received from multi-channel separate screen module
Frequency signal is converted to the video format for being suitble to coding, and the video signal transmission of converted form is encoded mould to audio-visual synchronization
Block, the audio-visual synchronization coding module encode the vision signal received, and the audio-visual synchronization coding module
Also the audio signal received from audio input interface is encoded, the audio-visual synchronization coding module will encode what is completed
Audio signal and video signal transmission give network interface output module, and network interface output module is by the audio signal received and vision signal
It is gone out by network transmission.
4. a kind of as claimed in claim 3 have the function of the display of audio/video encoding/decoding, it is characterised in that：The audio and video
It decodes transmission unit and includes network port input module, the network port input module passes externally input audio signal and vision signal
It is defeated by audio/video decoder to be decoded, audio/video decoder is defeated to driving by decoded audio signal and video signal transmission
Go out module for screen display and sound equipment to be driven to export.
5. a kind of as claimed in claim 4 have the function of the display of audio/video encoding/decoding, it is characterised in that：The network interface is defeated
Go out module to export the audio signal after coding and vision signal by network interface using network chip, the network port input module
Audio signal and vision signal are sent to audio/video decoding module using network chip.
6. a kind of as claimed in claim 5 have the function of the display of audio/video encoding/decoding, it is characterised in that：The microcontroller
Using STM32, and the microcontroller connects audio-visual synchronization coding module.
7. a kind of as described in claim 1 have the function of the display of audio/video encoding/decoding, it is characterised in that：The control is defeated
Enter module to include being integrated in the input unit of outside display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239115.4A CN108235097A (en) | 2018-03-22 | 2018-03-22 | It is a kind of that there is the display of audio/video encoding/decoding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239115.4A CN108235097A (en) | 2018-03-22 | 2018-03-22 | It is a kind of that there is the display of audio/video encoding/decoding |
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| Publication Number | Publication Date |
|---|---|
| CN108235097A true CN108235097A (en) | 2018-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810239115.4A Pending CN108235097A (en) | 2018-03-22 | 2018-03-22 | It is a kind of that there is the display of audio/video encoding/decoding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405271A (en) * | 2020-03-25 | 2020-07-10 | 中晨科技（深圳）有限公司 | Micro display driving system |
| CN112165633A (en) * | 2020-09-28 | 2021-01-01 | 山东超越数控电子股份有限公司 | Method and equipment for display signal remote transmission and multi-screen notebook computer |
| CN112241221A (en) * | 2020-10-15 | 2021-01-19 | 天津市亚威达科技有限责任公司 | Coding and decoding network display |
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| US20090040381A1 (en) * | 2007-08-06 | 2009-02-12 | Kabushiki Kaisha Toshiba | Information Processing Apparatus and Output Control Method |
| CN104135636A (en) * | 2014-07-29 | 2014-11-05 | 广州视源电子科技股份有限公司 | Display equipment with high-performance picture recording and picture recording method thereof |
| CN107102694A (en) * | 2017-06-06 | 2017-08-29 | 南京巨鲨显示科技有限公司 | A kind of display with kinescope recording function |
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2018
- 2018-03-22 CN CN201810239115.4A patent/CN108235097A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090040381A1 (en) * | 2007-08-06 | 2009-02-12 | Kabushiki Kaisha Toshiba | Information Processing Apparatus and Output Control Method |
| CN104135636A (en) * | 2014-07-29 | 2014-11-05 | 广州视源电子科技股份有限公司 | Display equipment with high-performance picture recording and picture recording method thereof |
| CN107102694A (en) * | 2017-06-06 | 2017-08-29 | 南京巨鲨显示科技有限公司 | A kind of display with kinescope recording function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405271A (en) * | 2020-03-25 | 2020-07-10 | 中晨科技（深圳）有限公司 | Micro display driving system |
| CN112165633A (en) * | 2020-09-28 | 2021-01-01 | 山东超越数控电子股份有限公司 | Method and equipment for display signal remote transmission and multi-screen notebook computer |
| CN112241221A (en) * | 2020-10-15 | 2021-01-19 | 天津市亚威达科技有限责任公司 | Coding and decoding network display |
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Application publication date: 20180629 |