CN107911701A - A kind of 4K Video codings, storage and Transmission system - Google Patents
A kind of 4K Video codings, storage and Transmission system Download PDFInfo
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- CN107911701A CN107911701A CN201711202845.9A CN201711202845A CN107911701A CN 107911701 A CN107911701 A CN 107911701A CN 201711202845 A CN201711202845 A CN 201711202845A CN 107911701 A CN107911701 A CN 107911701A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a kind of 4K Video codings, storage and Transmission system, it is characterised in that：Including dual link DVI interface, video input module, video processing module, video encoding module, mixed-media network modules mixed-media and power module；The dual link DVI interface is used to receive the vision signal that video source is sent, the video input module is used to the vision signal being converted to video data, the video processing module is used to be handled the video data, the video encoding module is used to be handled the data after video processing module processing, the mixed-media network modules mixed-media is used for the data transfer after video encoding module processing to external equipment, and it is system power supply that the power module, which is used to connect external power supply,.The device have the advantages that：Support to be compressed 4K videos coding, storage and transmission with H.265 standard, support Power over Ethernet, be easy to carry about with one and install, there is good autgmentability.
Description
Technical field
The invention belongs to video decoding/encoding device technical field, and in particular to a kind of 4K Video codings, storage and transmission system
System.
Background technology
In modern society, with the intensification of the level of informatization, high-definition video image is gradually applied to more and more
Field and occasion, such as safety monitoring, video conference and hospital surgical teaching etc..The thing followed is increasing storage
Pressure and network bandwidth pressure.
Most of video decoding/encoding devices have the disadvantages that currently on the market：
1st, majority is still based on H.264 standard and is compressed coding, and the data volume after 4K video compress is still very big, to storage and
Network system causes larger pressure；
2nd, 4K video interfaces are more based on HDMI or DP interfaces, it is difficult to support the application demand of DVI dual link vision signals, especially
It is opposite consumer electronics than more conservative medical imaging field.
3rd, head end video collection is integrated in an equipment by the video encoder majority of small portable with Video coding
In, very flexible, is not easy to expand to other field；
4th, most of modular encoding devices need to be equipped with exterior independent current source, and it is numb to install comparison in some special occasions
It is tired.Some are powered using USB, but because power limited is not suitable for current high-resolution video encoder gradually.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, there is provided a kind of 4K Video codings, storage and transmission system
System, it would be preferable to support coding, storage and transmission are compressed 4K videos with H.265 standard, supports Power over Ethernet, is easy to carry about with one
And installation, there is good autgmentability.
To solve prior art problem, the invention discloses a kind of 4K Video codings, storage and Transmission system, including double-strand
Road DVI interface, video input module, video processing module, video encoding module, mixed-media network modules mixed-media and power module；Dual link DVI
Interface is used to receive the vision signal that video source is sent, and video input module is used to vision signal being converted to video data, depending on
Frequency processing module be used for video data is handled, video encoding module be used for video processing module is handled after data into
Row processing, mixed-media network modules mixed-media are used for the data transfer after video encoding module is handled to external equipment, and power module is used to connect
External power supply is system power supply.
Preferably, video input module includes two Splitter chips, and Splitter chips are used for will input
DVI dual links signal carry out 1:2 duplication operates to form two groups of complete DVI double-strands circuit-switched datas, one of which DVI dual links
Data form annular output, and another group of DVI dual links data transfer to post-module is handled.
Preferably, video input module further includes two HDMI/DVI receiver chips, each HDMI/DVI
Receiver chip TMDS Link data can will be converted to TTL interface signals so that video processing module is handled all the way.
Preferably, video input module can support at the same time DVI1.0 standards 4K@30Hz video inputs and
The 4K@30Hz video inputs of HDMI1.4 standards；
When input signal is dual link DVI signals, two HDMI/DVI receiver chips work in dual link DVI patterns, and
The odd even pixel data and row, field sync signal to video processing module of 24bit is exported respectively；
When input signal is the 4K@30Hz signals of HDMI1.4 standards, a HDMI/DVI receiver chip is operated in HDMI
Pattern and the odd even pixel data and row, field sync signal to video processing module for exporting 24bit*2, another HDMI/DVI
Receiver chip does not export any signal into resting state.
Preferably, video processing module includes a FPGA device, and FPGA device can be to inputting RGB therein
Pixel data carries out the processing of pumping value to complete conversion of the RGB domains to Bayer domains, and the Bayer data of generation is connect with LVDS
Mouth is sent to video encoding module；FPGA device can also carry out colour space transformation to input YUV domains therein video data
To complete the conversion of YUV domains to RGB domains.
Preferably, video encoding module includes a Video processing SOC chip, and Video processing SOC chip is used for
The Bayer data that LVDS interface is received carry out the processing such as Demosaic, correction, compressed encoding, then video data is packed
Into the data format for meeting ICP/IP protocol standard, external equipment is transferred to will pass through mixed-media network modules mixed-media.
Preferably, mixed-media network modules mixed-media includes the ethernet transceiver chip of a high integration, a network transformation
Device and a RJ45 connector.
Preferably, power module includes Power over Ethernet circuit, and Power over Ethernet circuit meets including one
The isolated Power over Ethernet module of IEEE802.3af standards；Isolated Power over Ethernet module is from the center of network transformer
Tap obtains direct current, and the isolated on-off circuit by isolated Power over Ethernet module internal is converted into late-class circuit needs
Voltage.
Preferably, power module, which further includes, protects circuit, filter circuit and switch voltage-stabilizing circuit, protection circuit,
Filter circuit and switch voltage-stabilizing circuit are used to the direct current of isolated Power over Ethernet module output being filtered, voltage stabilizing and
It is converted into the power supply of some different amplitudes.
Preferably, DDR memory, flash storage and TF Card memories are further included；DDR memory is used as
System operation memory, flash storage are used for storage system program code, and TF Card memories are used to store the video recorded
Data file.
The device have the advantages that：Support to be compressed coding, storage and transmission to 4K videos with H.265 standard,
Support Power over Ethernet, be easy to carry about with one and install, there is good autgmentability.
Brief description of the drawings
Fig. 1 is the inside connection diagram of a preferred embodiment of the invention
Fig. 2 is video input module and video processing module connection diagram in embodiment illustrated in fig. 1；
Fig. 3 is Video coding and mixed-media network modules mixed-media schematic diagram in embodiment illustrated in fig. 1.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiments are only used for clearly illustrating the present invention
Technical solution, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
As shown in Figures 1 to 3, the present embodiment reduces the bandwidth demand of network transmission to improve the compression ratio of video data,
Portability in view of equipment and property easy to install at the same time, disclose a kind of 4K Video codings, storage and Transmission system, it includes double
Link DVI interface, video input module, video processing module, video encoding module, mixed-media network modules mixed-media and power module.Dual link
DVI interface is used to receive the vision signal that video source is sent, and video input module is used to vision signal being converted to video data,
Video processing module is used to be handled video data, and video encoding module is used for the data after video processing module is handled
Handled, mixed-media network modules mixed-media is used for the data transfer after video encoding module is handled to external equipment, and power module is used to connect
It is system power supply to connect external power supply.The maximum video resolution that the system can be handled is 4Kx2K@30Hz.
As a preferred embodiment, the picture output device such as dual link DVI interface external camera or endoscope.
As a preferred embodiment, video input module includes two Splitter chips, and Splitter chips are
The EP9142U chips of Wei Qu companies, the Splitter chips are used for the TMDS link 0 in the DVI dual link signals of input
Carry out 1:2 are copied into link 0_1 and link 0_2, and link 1 is carried out 1:2 are copied into link 1_1 and link 1_2.
Link 0_1 and Link 1_1 form loop output, Link 0_2 and Link 1_ after forming one group of complete DVI double-strands circuit-switched data
Send to late-class circuit and handled after 2 one group of complete DVI double-strands circuit-switched data of composition.
As a preferred embodiment, video input module further includes two HDMI/DVI receiver chips, HDMI/
DVI receiver chips are the ADV7619 chips of ADI companies, and each HDMI/DVI receiver chips can will TMDS all the way
Link data are converted to TTL interface signals so that video processing module is handled.
As a preferred embodiment, video input module can support the 4K@30Hz videos of DVI1.0 standards at the same time
Input and the 4K@30Hz video inputs of HDMI1.4 standards.When input signal is dual link DVI signals, two HDMI/DVI
Receiver chip works in dual link DVI patterns, and exports the odd even pixel data and row, field sync signal of 24bit respectively
To video processing module.When input signal is the 4K@30Hz signals of HDMI1.4 standards, a HDMI/DVI receiver chip
It is operated in HDMI patterns and exports the odd even pixel data and row, field sync signal to video processing module of 24bit*2, it is another
A HDMI/DVI receiver chips do not export any signal into resting state.Wherein, under HDMI patterns, input it is single-stranded
Road TMDS data only pass through a Splitter chip and a HDMI/DVI receiver chip, HDMI/DVI receiver chips
The TMDS data of 4K 30Hz are converted to the odd even pixel data of 48bit and are transmitted to FPGA device and are handled so that this sets
It is standby can be with 1.4 standard of compatible with HDMI.
As a preferred embodiment, video processing module includes a FPGA device, and FPGA device is public for Xilinx
The xc6slx45 chips of department.FPGA device can carry out the processing of pumping value to complete RGB domains to input RGB pixel data therein
Sent to the conversion in Bayer domains, and by the Bayer data of generation by LVDS HSSI High-Speed Serial Interfaces to video encoding module；
FPGA device can also carry out colour space transformation to input YUV domains therein video data and be turned with completing YUV domains to RGB domains
Change.
As a preferred embodiment, video encoding module includes a Video processing SOC chip.In order to realize that 4K is regarded
The compressed encoding of frequency signal, while compression ratio is improved, Video processing SOC chip is the professional high definition IP of HiSilicon
Camera SOC --- HI3519V101 chips, the chip are supported to be compressed coding to 4K videos with H.265 standard.The video
The Bayer data that processing SOC chip is used to receive LVDS interface carry out the processing such as Demosaic, correction, compressed encoding, then
Video data being packaged into the data format for meeting ICP/IP protocol standard, being transferred to outside with will pass through gigabit ethernet interface
Portion's equipment.
As a preferred embodiment, mixed-media network modules mixed-media include the ethernet transceiver chip of a high integration, one
Network transformer and a RJ45 connector.The mixed-media network modules mixed-media is docked with the MAC interface of Hi3519V101 chips, by code stream number
Sent according to by twisted-pair feeder to external network.
As a preferred embodiment, power module includes Power over Ethernet circuit, and Power over Ethernet circuit includes one
A isolated Power over Ethernet module for meeting IEEE802.3af standards.Isolated Power over Ethernet module has two groups of inputs to draw
Foot, every group of input pin is connected with centre cap of the network transformer close to RJ45 connectors side, to obtain 48V direct currents,
By the isolated on-off circuit of module internal, the 12V voltages that late-class circuit needs are converted into.
As a preferred embodiment, power module further includes protection circuit, filter circuit and switch voltage-stabilizing circuit, protects
Protection circuit, filter circuit and switch voltage-stabilizing circuit are used to be filtered the 12V DC electricity of isolated Power over Ethernet module output
Ripple, voltage stabilizing and the power supply for being converted into some different amplitudes.
As a preferred embodiment, DDR memory, flash storage and TF Card memories are further included；DDR is deposited
Reservoir is used as system operation memory, and flash storage is used for storage system program code, and TF Card memories, which are used to store, to be recorded
The video data file of system.
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, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of 4K Video codings, storage and Transmission system, it is characterised in that：Including dual link DVI interface, video input mould
Block, video processing module, video encoding module, mixed-media network modules mixed-media and power module；The dual link DVI interface is used to receive video
The vision signal that source is sent, the video input module is used to the vision signal being converted to video data, at the video
Reason module is used to be handled the video data, and the video encoding module is used for after video processing module processing
Data handled, the mixed-media network modules mixed-media is used for the data transfer after video encoding module processing to external equipment,
It is system power supply that the power module, which is used to connect external power supply,.
2. a kind of 4K Video codings, storage and Transmission system according to claim 1, it is characterised in that：The video is defeated
Entering module includes two Splitter chips, and the Splitter chips are used to the DVI dual links signal of input carrying out 1:2
Replicate operation and form two groups of complete DVI double-strands circuit-switched datas, one of which DVI double-strand circuit-switched datas form annular output, another group
DVI dual links data transfer to post-module is handled.
3. a kind of 4K Video codings, storage and Transmission system according to claim 2, it is characterised in that：The video is defeated
Enter module and further include two HDMI/DVI receiver chips, each HDMI/DVI receiver chips can will TMDS all the way
Link data are converted to TTL interface signals so that the video processing module is handled.
4. a kind of 4K Video codings, storage and Transmission system according to claim 3, it is characterised in that：The video is defeated
The 4K@30Hz video inputs of DVI1.0 standards and the 4K@30Hz video inputs of HDMI1.4 standards can be supported at the same time by entering module；
When input signal is dual link DVI signals, two HDMI/DVI receiver chips work in dual link DVI moulds
Formula, and the odd even pixel data and row, field sync signal to the video processing module of 24bit are exported respectively；
When input signal is the 4K@30Hz signals of HDMI1.4 standards, a HDMI/DVI receiver chip is operated in
HDMI patterns and the odd even pixel data and row, field sync signal to the video processing module for exporting 24bit*2, another
The HDMI/DVI receiver chips do not export any signal into resting state.
5. a kind of 4K Video codings, storage and Transmission system according to claim 1, it is characterised in that：At the video
Reason module includes a FPGA device, the FPGA device input RGB pixel data therein can be carried out the processing of pumping value with
Just the conversion in RGB domains to Bayer domains is completed, and the Bayer data of generation are sent to the Video coding mould with LVDS interface
Block；The FPGA device can also carry out colour space transformation to complete YUV domains extremely to input YUV domains therein video data
Change in RGB domains.
6. a kind of 4K Video codings, storage and Transmission system according to claim 5, it is characterised in that：The video is compiled
Code module includes a Video processing SOC chip, and the Video processing SOC chip is used for the Bayer for receiving LVDS interface
Data carry out the processing such as Demosaic, correction, compressed encoding, then video data is packaged into the number for meeting ICP/IP protocol standard
According to form, external equipment is transferred to will pass through the mixed-media network modules mixed-media.
7. a kind of 4K Video codings, storage and Transmission system according to claim 1, it is characterised in that：The network mould
Block includes ethernet transceiver chip, a network transformer and a RJ45 connector for a high integration.
8. a kind of 4K Video codings, storage and Transmission system according to claim 1, it is characterised in that：The power supply mould
Block includes Power over Ethernet circuit, the Power over Ethernet circuit include one meet IEEE802.3af standards it is isolated with
Too net power supply module；The isolated Power over Ethernet module obtains direct current, warp from the centre cap of the network transformer
The isolated on-off circuit for crossing the isolated Power over Ethernet module internal is converted into late-class circuit required voltage.
9. a kind of 4K Video codings, storage and Transmission system according to claim 8, it is characterised in that：The power supply mould
Block further includes protection circuit, filter circuit and switch voltage-stabilizing circuit, and protection circuit, filter circuit and the switch voltage-stabilizing circuit are used
In the direct current of the isolated Power over Ethernet module output is filtered, voltage stabilizing and is converted into some different amplitudes
Power supply.
10. a kind of 4K Video codings, storage and Transmission system according to claim 1, it is characterised in that：Further include DDR
Memory, flash storage and TFCard memories；The DDR memory is used as system operation memory, the Flash storages
Device is used for storage system program code, and the TF Card memories are used to store the video data file recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202845.9A CN107911701A (en) | 2017-11-27 | 2017-11-27 | A kind of 4K Video codings, storage and Transmission system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711202845.9A CN107911701A (en) | 2017-11-27 | 2017-11-27 | A kind of 4K Video codings, storage and Transmission system |
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Cited By (4)
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| CN109905665A (en) * | 2019-01-31 | 2019-06-18 | 南京巨鲨显示科技有限公司 | A kind of diagosis system based on 4K codec |
| CN110531950A (en) * | 2019-09-23 | 2019-12-03 | 北京小鸟科技股份有限公司 | A kind of video card for supporting KVM to encode |
| CN113115112A (en) * | 2021-06-16 | 2021-07-13 | 上海齐感电子信息科技有限公司 | Verification platform and verification method |
| WO2022121126A1 (en) * | 2020-12-09 | 2022-06-16 | 深圳市朗强科技有限公司 | High-definition video data sending method, high-definition video data receiving method, and device |
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Application publication date: 20180413 |