CN110474867A - A kind of transmission method of multi-medium data, system and equipment - Google Patents
A kind of transmission method of multi-medium data, system and equipment Download PDFInfo
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- CN110474867A CN110474867A CN201910562405.7A CN201910562405A CN110474867A CN 110474867 A CN110474867 A CN 110474867A CN 201910562405 A CN201910562405 A CN 201910562405A CN 110474867 A CN110474867 A CN 110474867A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/188—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a video data packet, e.g. a network abstraction layer [NAL] unit
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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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
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- Computer Networks & Wireless Communication (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
This application discloses a kind of transmission method of multi-medium data, system and equipment, wherein method includes: that transmitting terminal obtains the multi-medium data, encodes the multi-medium data by compression algorithm, obtains bit stream data；The bit stream data is packaged into data packet by the transmitting terminal；The data packet is transmitted to receiving end by interchanger by the transmitting terminal；The receiving end parses the data packet received, obtains specific bit stream data；The specific bit stream data is decoded by the receiving end, generates specific multi-medium data.Using the application, on the one hand, may make the display being connected with receiving end to play visually lossless HD video no-delayly, on the other hand, the transmission cost expense of data can be reduced.
Description
Technical field
This application involves network communication technology field more particularly to a kind of transmission method of multi-medium data, system and set
It is standby.
Background technique
Currently, display technology is fast-developing, show the bandwidth requirement of link with the raising of monitor resolution form than
Example is promoted.However, some display links are unable to satisfy the bandwidth demand of high-clear display.
In the prior art, existing video is mostly transmission HDMI signal, for it by showing that link carries out extension transmission
The transmission of his signal (DVI/VGA/AV/SDI/YPBPR etc.) requires transmit after being converted into HDMI, and each signal
It is directly and relatively independent, it can not achieve and interconnect.Such as HDBaseT, there are also the HDMI of single line transmission, require an institute
It is realized after thering is signal to be converted into HDMI, so that system be made to become huger and complicated, stability is greatly reduced, engineering maintenance
Expense is also relatively high.
Summary of the invention
The application provides transmission method, system and the equipment of a kind of multi-medium data, on the one hand, may make high-clear display
HD video is played no-delayly, on the other hand, can reduce transmission cost expense.
In a first aspect, this application provides a kind of transmission methods of multi-medium data, this method comprises:
Transmitting terminal obtains the multi-medium data, is encoded the multi-medium data by compression algorithm, obtains code
Flow data；
The bit stream data is packaged into data packet by the transmitting terminal；
The data packet is transmitted to receiving end by interchanger by the transmitting terminal；
The receiving end parses the data packet received, obtains specific bit stream data；
The specific bit stream data is decoded by the receiving end, generates specific multi-medium data.
With reference to first aspect, in some alternative embodiments,
It is described to be encoded the multi-medium data by compression algorithm, obtain bit stream data, comprising:
By showing that stream compression algorithm is predicted, quantified and rebuild to the multi-medium data, and by the institute after reconstruction
It states multi-medium data and carries out entropy coding, obtain bit stream data.
With reference to first aspect, in some alternative embodiments, it is described by compression algorithm by the multi-medium data into
Row coding, obtains bit stream data, comprising:
The multi-medium data is encoded by display stream compression algorithm, obtains bit stream data；
Alternatively,
The multi-medium data is encoded by JPEG2000 compression algorithm, obtains bit stream data.
With reference to first aspect, in some alternative embodiments,
The data packet includes a data packet；
The data packet is transmitted to receiving end by interchanger by the transmitting terminal, comprising:
The data packet is forwarded the data packet to the receiving end by the transmitting terminal by interchanger.
With reference to first aspect, in some alternative embodiments,
The data packet includes multiple data packets；
The data packet is transmitted to receiving end by interchanger by the transmitting terminal, comprising:
Each data packet in the multiple data packet is transmitted to the reception respectively by interchanger by the transmitting terminal
End.
With reference to first aspect, in some alternative embodiments,
The data packet is transmitted to receiving end by interchanger by the transmitting terminal, comprising:
Each data packet in the multiple data packet is transmitted to described by the transmitting terminal respectively by stacked switch
Receiving end.With reference to first aspect, in some alternative embodiments,
The specific bit stream data is decoded by the receiving end, after generating specific multi-medium data, further includes:
The multi-medium data is output to the display being connected with the receiving end by the receiving end；The display is used
In the display multi-medium data.
Second aspect, this application provides a kind of Transmission system of multi-medium data, which includes:
Transmitting terminal and receiving end；Wherein,
The transmitting terminal includes: to obtain module, coding module, package module and forwarding module；
The acquisition module, for obtaining the multi-medium data；
The coding module obtains bit stream data for encoding the multi-medium data；
The package module, for the bit stream data to be packaged into data packet；
The forwarding module, for the data packet to be transmitted to the receiving end；
The receiving end includes: receiving module, parsing module and decoder module；
The receiving module, for receiving the data packet of the forwarding module forwarding；
The parsing module obtains special code for parsing the data packet of the receiving module reception channel
Flow data；
The decoder module generates specific multi-medium data for the specific bit stream data to be decoded.
In conjunction with second aspect, in some alternative embodiments,
The coding module, is specifically used for:
The multi-medium data is predicted, quantified and rebuild, and the multi-medium data after reconstruction is subjected to entropy
Coding obtains bit stream data.
In conjunction with second aspect, in some alternative embodiments,
The data packet includes a data packet；
The forwarding module, is specifically used for:
Forward the data packet to the receiving end.
In conjunction with second aspect, in some alternative embodiments,
The data packet includes multiple data packets；
The forwarding module, is specifically used for:
Each data packet in the multiple data packet is transmitted to the receiving end respectively.
In conjunction with second aspect, in some alternative embodiments,
Further include:
Output module is used for: the multi-medium data is output to the display being connected with the receiving end；The display
Device is for showing the multi-medium data.
The third aspect, this application provides a kind of equipment, comprising: processor and memory and described are deposited the processor
Reservoir is connected with each other, wherein for storing application code, the processor is configured for described in calling the memory
Program code executes the transmission method of multi-medium data described in first aspect.
Fourth aspect, this application provides a kind of computer readable storage medium, the computer storage medium is stored with
Computer program, the computer program include program instruction, and described program instruction makes the processing when being executed by a processor
Device executes the transmission method of multi-medium data described in above-mentioned first aspect.
This application provides a kind of transmission method of multi-medium data, system and equipment.Wherein, method includes: firstly, hair
Sending end obtains multi-medium data, is encoded multi-medium data by compression algorithm, obtains bit stream data；Transmitting terminal is by code stream
Data packet is at data packet；In turn, data packet is transmitted to receiving end by interchanger by transmitting terminal；Then, receiving end will receive
To data packet parsed, obtain specific bit stream data；Finally, specific bit stream data is decoded by receiving end, generate special
Determine multi-medium data.Using the application, multi-medium data is encoded by compression algorithm, to obtain the code after lossless compression
Flow data may make the high-clear display being connected with receiving end to play visually lossless HD video, user's body no-delayly
It tests higher；In addition, transmission cost expense can be reduced by way of bit stream data to be packaged into data packet and is transferred to receiving end.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present application, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic flow diagram of the transmission method of multi-medium data provided by the present application；
Fig. 2 is the schematic diagram of NAL provided by the present application a kind of；
Fig. 3 is a kind of schematic diagram of image coding provided by the present application；
Fig. 4 is a kind of schematic diagram carried out data transmission by interchanger provided by the present application；
Fig. 5 is a kind of schematic diagram that tiled display is carried out by display provided by the present application；
Fig. 6 is the schematic diagram that another kind provided by the present application is carried out data transmission by interchanger；
Fig. 7 is a kind of schematic diagram of the segmentation display interface of display provided by the present application；
Fig. 8 is another schematic diagram for being carried out data transmission by interchanger provided by the present application；
Fig. 9 is another schematic diagram for being carried out data transmission by interchanger provided by the present application；
Figure 10 is another schematic diagram for being carried out data transmission by interchanger provided by the present application；
Figure 11 is a kind of schematic diagram carried out data transmission by stacked switch provided by the present application；
Figure 12 is the schematic diagram that another kind provided by the present application is carried out data transmission by stacked switch；
Figure 13 is a kind of structural schematic diagram of Multimedia Transmission System provided by the present application；
Figure 14 is a kind of structural schematic diagram of multi-medium data transmission device provided by the present application.
Specific embodiment
Below in conjunction with the attached drawing in the application, the technical solution in the application is clearly and completely described, is shown
So, described embodiment is some embodiments of the present application, instead of all the embodiments.Based on the implementation in the application
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the application protection.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this present specification merely for the sake of description specific embodiment
And be not intended to limit the application.As present specification and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in present specification and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
Equipment is supported to transmit various types of videos and can support various application programs, such as one of the following or more
A: drawing application program, demonstration applications, word-processing application, website create application program, disk imprinting application journey
Sequence, spreadsheet applications, game application, telephony application, videoconference application, e-mail applications journey
Sequence, instant messaging applications take exercise and support application program, photo management application program, digital camera application program, number
Word camera application program, web-browsing application program, digital music player application and/or video frequency player are answered
Use program.
The various application programs that can be executed in equipment can be used such as touch sensitive surface at least one is public
Physical user-interface device.It can adjust and/or change among applications and/or in corresponding application programs and touch sensitive table
The corresponding information shown in the one or more functions and equipment in face.In this way, the public physical structure of equipment is (for example, touch
Sensing surface) it can support the various application programs with user interface intuitive and transparent for a user.
It is a kind of schematic flow diagram for the transmission method that the application provides multi-medium data referring to Fig. 1, as shown in Figure 1, should
Method can include at least following steps:
S101, transmitting terminal obtain multi-medium data, are encoded multi-medium data by compression algorithm, obtain code stream number
According to.
In the embodiment of the present application, multi-medium data be may include but be not limited to: as text, data, sound, figure, image or
The perception mediums data such as video (such as 1080P, 4K or 8K HD video), such as telegraph code or bar code indicate media data etc.
Deng.It should illustrate, the multi-medium data got includes that one or more different types of video source datas (such as: record by monitoring
Picture, promotional videos, cartoon, costume piece or modern metropolitan cities are acute), the embodiment of the present application is with no restriction.
It should illustrate, which is mainly used for carrying out lossless compression to multi-medium data.
Wherein, which may include but be not limited to: display stream compression algorithm (Display Stream
Compression standard, DSC), JPEG compression algorithm, JPEG2000 compression algorithm, Huffman encoding algorithm.
The embodiment of the present application is right for obtaining bit stream data to show that stream compression algorithm encodes multi-medium data
The transmission method of multi-medium data is described in detail.Below by taking multi-medium data is video as an example, elaborate on how to pass through
Display stream compression algorithm encodes video, specifically may include but be not limited to following steps:
Step 1: each frame image in video is divided into rectangular item that is several, not overlapping as independent coding
Unit, wherein coding is carried out by row scanning mode, and the 1 pixel group of A x for the A pixel composition that can be connected is processing unit,
Optionally, A can be 3,4 or 5, and the embodiment of the present application is with no restriction.
Step 2: display stream compression algorithm can pass through (the Differential pulse of Differential Pulse Code Modulation in frame
Code modulation, DPCM) method prediction current pixel, prediction residual value is quantified to carry out using simple 2 integer power
Quantization and reconstruction pixel, and entropy coding (such as variable entropy coding (Variable Length is carried out to residual signals after quantization
Coding, VLC)), wherein entropy coding operates in 1 pixel group of 3x, and each component can produce the subcode stream of an entropy coding,
These subcode streams (in other words, the compressed data stream that each word stream can be formed for each component) are packaged, multiplexing of flowing automatically
After export.It should illustrate, DSC can be supported following but is not limited to following prediction mode: improved median adaptive prediction
(Modified median adaptive prediction, MMAP), block predict (Block prediction, BP) and midpoint
It predicts (Mid-point prediction, MPP).
It should be appreciated that the embodiment of the present application can also be encoded multi-medium data by JPEG2000 compression algorithm,
Obtain bit stream data.
Specifically, JPEG2000 compression algorithm first to multi-medium data carry out wavelet transform, then to transformation after
Wavelet coefficient quantified, then to the data entropy coding after quantization, last exportable bit stream data.Wherein, JPEG2000
The not whole sub-picture of the process object of compression algorithm, the image sheet after the picture breakdown, mostly each image sheet carry out independent
Coding-decoding operation.JPEG2000 compression algorithm mainly uses Algorithms of Discrete Wavelet Transform, it can be achieved that lossless compression to image,
Compressed image more smooth.Bit stream data is packaged into data packet by S102, transmitting terminal.
Data packet in the embodiment of the present application can include: what what ICP/IP protocol defined can be transmitted on the internet
Packet, such as IP datagram (IP Datagram).Wherein, IP datagram can be made of stem and data two parts, should be illustrated,
The front portion of stem is regular length, totally 20 byte, and stem includes source address (IP agreement address) and destination address (IP agreement
Address).
In the embodiment of the present application, bit stream data can be made of many NALU, wherein NALU can by start code prefix,
The head NALU and NALU load data.Start code prefix can be 0x 00 00 01 or 0x 00 00 00 01.And one original
If NALU divides NALU by function, the function of NALU can be divided into two layers: video coding layer (Video Coding
Layer, VCL) and network abstraction layer (NetworkAbstraction).
Fig. 2 illustrates the schematic diagram of NAL a kind of.
As shown in Fig. 2, NAL can be equivalent to a NALU (NAL unit) with RBSP (raw byte sequence payload), each
MAL unit all presses independent NALU transmission.
It should illustrate, a frame image may be encoded as one or more slices after DSC is encoded, and loads these and cut
The carrier of piece is NALU.
Fig. 3 illustrates a kind of schematic diagram of image coding.
As shown in figure 3, image after algorithm coding, has been encoded into three slices, and these slices are carried out by NALU
Carrying.It should illustrate, a NALU may include the head NALU and a slice (NALU load data), wherein slice includes
It is sliced head and slice of data.
Bit stream data is packaged into data packet by transmitting terminal, specifically may include but be not limited to following manner:
Transmitting terminal can remove the start code prefix of the NALU in bit stream data, along with the initial code and IP of IP datagram
Datagram head, to carry out single encapsulation.
Data packet is transmitted to receiving end by interchanger by S103, transmitting terminal.
In the embodiment of the present application, data packet is transmitted to receiving end by interchanger by transmitting terminal, it may include but it is unlimited following
Mode:
Mode 1: the data packet including a video source data is transmitted to receiving end by interchanger by transmitting terminal respectively, and
The video source data can be shown respectively by the multiple displays being connected with receiving end.
Fig. 4 illustrates a kind of schematic diagram carried out data transmission by interchanger.
It is connect as shown in figure 4, multiple data packets corresponding to a video source data are transmitted to by transmitting terminal by interchanger
Receiving end, and can be shown respectively by three displays (display 1, display 2 and display 3) being connected with receiving end
The video source data, wherein the video source data can be the monitor video data of some camera in some cell.
Fig. 5 illustrates a kind of schematic diagram that tiled display is carried out by display.
It is connect as shown in figure 5, multiple data packets corresponding to a video source data are transmitted to by transmitting terminal by interchanger
Receiving end, and can be by 6 displays (display 1, display 2, display 3, the display 4, display that are connected with receiving end
5 and display 6), the tiled display video source data.Mode 2: transmitting terminal is corresponding by multiple and different video source datas
Data packet is transmitted to receiving end by interchanger respectively, and can be by a display being connected with receiving end, and subregion is aobvious
Show above-mentioned multiple and different video source data.
Fig. 6 illustrates another schematic diagram carried out data transmission by interchanger.
As shown in fig. 6, transmitting terminal is by 3 different video source datas (video source data 1, video source data 2 and video source
Data 3) corresponding data packet by interchanger is transmitted to receiving end, and can be by a display being connected with receiving end
Device, subregion show above-mentioned 3 different video source datas.For example, display can be on a left side for the display interface of display
Upper angle display area shows that video source data 1, display can show in the upper right corner display area of the display interface of display and regard
Frequency source data 2, display can show video source data 3 in the lower right corner display area of the display interface of display, wherein display
Do not occur between the upper left corner display area of the display interface of device, upper right corner display area and lower right corner display area any heavy
It is folded.It should illustrate, video source data 1, video source data 2, video source data 3 may include but be not limited to following any one respectively
Seed type data: monitoring video, public welfare promotional videos, high definition television are acute.
Fig. 7 illustrates a kind of schematic diagram of the segmentation display interface of display.
As shown in fig. 7, the upper left corner display area of display can be used for showing the upper right corner of video source data 1, display
Display area can be used for showing that the lower right corner display area of video source data 2 and display can be used for showing video source data 3,
Wherein, the upper left corner display area, upper right corner display area, lower left corner display area and the lower right corner of the display interface of display
Any overlapping does not occur between display area.
Mode 3: transmitting terminal is by multiple and different video source datas (video source data 1, video source data 2 or video source data
3) corresponding data packet is transmitted to receiving end by interchanger respectively, and can be by multiple displays for being connected with receiving end
Device, joint show above-mentioned multiple and different video source data, wherein the number of display and the number of video source are identical.
Fig. 8 illustrates another schematic diagram carried out data transmission by interchanger.
As shown in figure 8, transmitting terminal can be turned respectively the corresponding data packet of 3 different video source datas by interchanger
Receiving end is issued, and can combine by 3 displays being connected with receiving end and show above-mentioned 3 different video source datas；
Wherein, 1 displayable video source data 1 of display, 2 displayable video source data 2 of display, 3 displayable video source number of display
According to 3.
Mode 4: transmitting terminal can be forwarded respectively the corresponding data packet of multiple and different video source datas by interchanger
To receiving end, and it can combine by the multiple displays being connected with receiving end and show different video source datas, wherein is aobvious
Show that the number of device is greater than the number of video source.
Fig. 9 illustrates another schematic diagram carried out data transmission by interchanger.
As shown in figure 9, transmitting terminal can be by 3 different video source datas (video source data 1, video source data 2 or video source
Data 3) corresponding data packet by interchanger is transmitted to receiving end respectively, and can be by be connected with receiving end 2
Display, joint 3 different video source datas of display, wherein display 1 can show 1 video source data, and display 2 can
Show other 2 video source datas.In other words, when display 1 is for when showing video source data 1, display 2 can to pass through a left side
Upper angle display area shows video source data 2, can show data 3 by upper right corner display area.
Mode 5: multiple data packets including different video source data are transmitted to reception by interchanger by transmitting terminal respectively
End, and can combine by the multiple displays being connected with receiving end and show different video source datas, wherein display
Number is less than the number of video source.
Figure 10 illustrates another schematic diagram carried out data transmission by interchanger.
As shown in Figure 10, transmitting terminal is by the data packet of 2 different video source datas (video source data 1, video source data 2)
It is transmitted to receiving end respectively by interchanger, and 2 differences of display can be combined by 3 displays being connected with receiving end
Video source data, wherein 1 displayable video source data 1 of display, display 2 and display 3 can show video source respectively
Data 2.
It should illustrate, data packet is transmitted to receiving end by interchanger by transmitting terminal, specifically can include:
Each data packet in multiple data packets is transmitted to receiving end respectively by stacked switch by transmitting terminal.
It should illustrate, stacking refers to works together one or more group of switches altogether, so as in a limited space
Port as much as possible is provided.Wherein, the stacking number of stacked switch can be 2,3 or 128, and the embodiment of the present application does not limit
System.
Figure 11 illustrates a kind of schematic diagram carried out data transmission by stacked switch.
As shown in figure 11, the stack port 1 of interchanger 1 and the stack port 2 of interchanger 2 are connected by stacking cable 1, and
The stack port 2 of interchanger 1 and the stack port 1 of interchanger 2 are connected by stacking cable 2 to complete interchanger 1 and interchanger 2
It is stacked, realizes the purpose increased for forwarding the service port of data.
For example, data packet corresponding to a video source data is transmitted to reception by stacked switch by transmitting terminal
End, and the video source data can be shown respectively by 10 displays being connected with receiving end.Specifically, can be by above-mentioned view
Data packet corresponding to frequency source data is input to interchanger 1 by the service port 4 of interchanger 1, in turn, can pass through interchanger 1
Service port 1, service port 2, service port 3, service port 5, service port 6, service port 7 and interchanger 2 industry
Data corresponding to above-mentioned video source data are all forwarded a packet to receiving end respectively by business port 1, service port 2, service port 3,
And 10 by being connected with receiving end displays, the video source data is shown respectively.
It should illustrate, it can also be defeated by the service port 4 of interchanger 1 by data packet corresponding to above-mentioned video source data
Enter to interchanger 1, also, the service port of the service port 1 of interchanger 1, service port 2 and interchanger 2 can also be passed through
1, service port 2, service port 3, service port 4, service port 5, service port 6, service port 7 are respectively all by above-mentioned video
Data corresponding to source data forward a packet to receiving end.
It should illustrate, the control instruction input by user that transmitting terminal can will receive is sent to stacked switch, with
Realize which service port of control stacked switch carries out which service port multi-medium data transmission (in other words, opens
Carry out multi-medium data transmission), control instruction can be used for being handed over according to the address of each service port to control in stacked switch
The service port changed planes is opened (state that can carry out data transmission) or is closed (state for being not available for data transmission).Wherein,
It can be on or off to characterize service port by that can show the display of different colours (green, grey)；Example
Such as: green can be shown by display, it is in the open state to characterize corresponding service port；Grey is shown by display,
It is in close state with characterizing corresponding service port.
Intelligible, in the embodiment of the present application, which service port for being specifically chosen stacked switch carries out multimedia number
According to transmission, the embodiment of the present application is with no restriction.
Figure 12 illustrates a kind of schematic diagram carried out data transmission by stacked switch.
As shown in figure 12, interchanger 1 and interchanger 2 by stack cable 1 connect the stack port 1 of interchanger 1 with exchange
The stack port 2 of machine 2, and the stack port 2 of interchanger 1 and the stack port 1 of interchanger 2 are connected by stacking cable 2, with complete
At stacking, the purpose for increasing the service port that can be used for carrying out data transmission is realized.
For example, data packet corresponding to 4 video source datas is transmitted to reception by stacked switch by transmitting terminal
End, and the video source data can be shown respectively by 12 displays being connected with receiving end.Specifically, can be by above-mentioned 4
Data packet corresponding to video source data passes through service port 1, service port 2, service port 3 and the business of interchanger 1 respectively
Port 4 is input to interchanger 1；In turn, the service port 5, service port 6, service port 7, service port of interchanger 1 can be passed through
8 and interchanger 2 service port 1, service port 2, service port 3, service port 4, service port 5, service port 6, business
Data corresponding to above-mentioned video source data are all forwarded a packet to receiving end respectively by port 7, service port 8, and by with reception
12 displays being connected are held, joint shows above-mentioned multiple and different video source data, wherein a display is for showing
One video source.
It should illustrate, data packet corresponding to above-mentioned 4 video source datas can also be passed through to the service port of interchanger 1
5, service port 6, service port 7, service port 8 are input to interchanger 1；In turn, the service port 1 of interchanger 1, industry can be passed through
Be engaged in port 2, service port 3, service port 4 and interchanger 2 service port 1, service port 2, service port 3, service port
4, service port 5, service port 6, service port 7, service port 8 are respectively all by data packet corresponding to above-mentioned video source data
Receiving end, and 12 by being connected with receiving end displays are forwarded to, joint shows above-mentioned multiple and different video source number
According to, wherein a display is for showing a video source.
S104, receiving end can parse the data packet received, obtain specific bit stream data.
In the embodiment of the present application, receiving end can parse the data packet received, obtain specific bit stream data, specifically
Can include:
Receiving end can unpack the data packet received, obtain specific bit stream data.
It should illustrate, receiving end can unpack the data packet received, be packaged into bit stream data for transmitting terminal
The inverse process of data packet gets rid of initial code and the IP datagram head of IP datagram by taking some IP datagram as an example, and adds
The start code prefix of NALU, to realize the process unpacked to IP datagram.
Specific bit stream data is decoded by S105, receiving end, generates specific multi-medium data.
In the embodiment of the present application, receiving end passes through the process that the bit stream data received is decoded by DSC, is transmitting terminal
The inverse process encoded by DSC to multi-medium data after being cached bit stream data, can be decoded by variable entropy
(Variable Length Decoding, VLD) extracts residual error, the information such as coding mode from the code stream of component, and utilizes
Predicted value is extracted in the coding mode information obtained before, residual error is subjected to inverse quantization, and be added with predicted value, weight can be obtained
This group of pixel value of composition picture, to realize the purpose for the data (specific multi-medium data) for generating the frame image.
In conclusion in the embodiment of the present application, firstly, transmitting terminal obtains multi-medium data, by compression algorithm by more matchmakers
Volume data is encoded, and bit stream data is obtained；In turn, bit stream data is packaged into data packet by transmitting terminal；Then, transmitting terminal passes through
Data packet is transmitted to receiving end by interchanger；Then, receiving end parses the data packet received, obtains special code fluxion
According to；Finally, specific bit stream data is decoded by receiving end, specific multi-medium data is generated.Using the embodiment of the present application, pass through
Compression algorithm encodes multi-medium data, to obtain compressed bit stream data, may make the high definition being connected with receiving end
Display plays visually lossless HD video (such as 1080p, 4K or 8K video) no-delayly, and user experience is higher；In addition,
By way of bit stream data to be packaged into data packet and is transferred to receiving end, transmission cost expense can be reduced.
It should illustrate, in the embodiment of the present application, Fig. 2-12 is used only for explaining the application, should not constitute restriction.
For the ease of implementing the embodiment of the present application, this application provides a kind of Multimedia Transmission Systems, can be used for reality
Method described in existing Fig. 1 embodiment.Multimedia Transmission System shown in Figure 13 can be used for executing above method embodiment
In description content.As shown in figure 13, system 13 can include: transmitting terminal 131 and receiving end 132；Wherein,
Transmitting terminal 131 includes: to obtain module 1311, coding module 1312, package module 1313 and forwarding module 1314.
Module 1311 is obtained, for obtaining multi-medium data.
Coding module 1312 obtains bit stream data for encoding multi-medium data.
Package module 1313, for bit stream data to be packaged into data packet.
Forwarding module 1314, for data packet to be transmitted to receiving end 132.
Receiving end 132 includes: receiving module 1321, parsing module 1322 and decoder module 1323.
Receiving module 1321, for receiving the data packet of the forwarding of forwarding module 1314.
Parsing module 1322, the data packet for receiving receiving module 1321 parse, and obtain special code fluxion
According to.
Decoder module 1323 generates specific multi-medium data for specific bit stream data to be decoded.
Specifically, coding module 1312, is specifically used for:
Multi-medium data is predicted, quantified and is rebuild, and the multi-medium data after reconstruction is subjected to entropy coding, is obtained
Bit stream data.
Forwarding module 1314, is specifically used for:
If data packet, including a data packet, then forward data packet to receiving end 132.
If each data packet in multiple data packets is then transmitted to reception respectively by data packet, including multiple data packets
End 132.
It should be appreciated that system 13 is only an example provided by the embodiments of the present application, also, system 13 can have than showing
The more or fewer components of component, two or more components can be combined, or can have the different configurations of component to realize.
Intelligible, the specific implementation for the functional module that the system 13 about Figure 13 includes can refer to 1 institute of earlier figures
The embodiment of the method shown, details are not described herein again.
In conclusion in the embodiment of the present application, firstly, system 13 obtained by the acquisition module 1311 of transmitting terminal 131 it is more
Media data is encoded multi-medium data by the coding module 1312 of transmitting terminal 131, obtains bit stream data；In turn, it is
Bit stream data is packaged into data packet by the package module 1313 of transmitting terminal 131 by system 13；Then, turned by transmitting terminal 131
It sends out module 1314 and data packet is transmitted to receiving end 132；Then, system 13 will be connect by the parsing module 1322 of receiving end 132
It receives the data packet that module 1321 receives to be parsed, obtains specific bit stream data；Finally, passing through the decoding mould of receiving end 132
Specific bit stream data is decoded by block 1323, generates specific multi-medium data.Using the embodiment of the present application, pass through coding module
1312 encode multi-medium data, to obtain compressed bit stream data, may make that the high definition being connected with receiving end 132 is aobvious
Show that device plays visually lossless HD video no-delayly, user experience is higher；In addition, by the way that bit stream data is packaged into number
It is transferred to the mode of receiving end 132 according to packet, transmission cost expense can be reduced.
The embodiment of the present application provides a kind of multi-medium data transmission device, can be used for realizing side described in Fig. 1 embodiment
Method.Figure 14 is a kind of structural schematic diagram of the transmission device of multi-medium data provided by the present application.In the embodiment of the present application, equipment
It can include but is not limited to: the various equipment such as extender, mobile internet device (Mobile InternetDevice, MID),
The embodiment of the present application is not construed as limiting.As shown in figure 14, equipment 14 can include: equipment 141, equipment 142 and communication bus 143；
Wherein, equipment 141 may include but be not limited to: input port 1411, first processor 1412 and first memory 1413；Equipment
142 may include but be not limited to: second processor 1421, output port 1422, second memory 1423.Wherein, input port
1411, first processor 1412, second processor 1421, one or more communication bus can be passed through between output port 1422
143 are communicated.It should illustrate, first memory 1413 and second memory 1423 can also be combined as a memory.
Intelligible, equipment 14 may also include that one or more interchangers, wherein one or more of interchangers can
For by equipment 141, treated that multi-medium data is transmitted to equipment 142.
It should illustrate, first memory 1413 is coupled with first processor 1412, and first memory 1413 can be used for depositing
Store up the multi-medium data got.
It should illustrate, first memory 1413 can also be used to store various software programs and/or multiple groups instruction.It is specific real
In existing, first memory 1413 may include the memory of high random access, and may also comprise nonvolatile memory, such as
One or more disk storage equipments, flash memory device or other non-volatile solid-state memory devices.First memory 1413 can be with
Storage program area (following abbreviation systems), such as the embedded OSs such as ANDROID, IOS, WINDOWS or LINUX.
First memory 1413 can also store network communication program, which, which can be used for adding with one or more, sets
Standby, one or more equipment, one or more network equipments are communicated.First memory 1413 can also store user interface
Program, the user interface program can be shown by patterned operation interface by the content image of application program is true to nature
Come, and receives user by input controls such as menu, dialog box and keys and the control of application program is operated.
It should illustrate, first memory 1413 can also store one or more application program.As shown in figure 14, these
Application program can include: social application program (such as Facebook), image management application (such as photograph album), map class is answered
With program (such as Google Maps), browser (such as Safari, GoogleChrome) etc..
Intelligible, first processor 1412 is particularly used in execution following steps:
Step 11: the multi-medium data that will acquire is encoded, and obtains bit stream data；
Step 12: the bit stream data of acquisition is packaged into data packet.
Wherein, input port 1411 can be used for inputting the multi-medium data got.
It should illustrate, second processor 1421 is particularly used in execution following steps: step 21: the number that will be received
It is parsed according to packet, obtains specific bit stream data；
Step 22: the specific bit stream data of acquisition being decoded, specific multi-medium data is generated.
Wherein, second memory 1423 can also be used in multi-medium data generated after storage decoding.
Wherein, output port 1422 can be used for exporting decoding after multi-medium data generated, and by with output port
Decoded multi-medium data is played out or is shown by 1422 displays being connected.
It should be appreciated that equipment 14 is only an example provided by the embodiments of the present application, also, equipment 14 can have than showing
The more or fewer components of component, two or more components can be combined, or can have the different configurations of component to realize.
It is intelligible, the specific implementation for the functional component that the equipment 14 about Figure 14 includes, the method that can refer to Fig. 1
Embodiment, details are not described herein again.
In conclusion in the embodiment of the present application, firstly, equipment 14 inputs the multimedia received by input port 1411
Data, equipment 14 are encoded the multi-medium data of input by the first processor 1412 of equipment 141, obtain code stream number
According to；In turn, bit stream data is packaged into data packet by first processor 1412 by equipment 14；Then, equipment 14 can pass through exchange
Data packet is transmitted to the equipment 2143 of equipment 14 by machine；Then, equipment 14 will be received by the second processor 1421 of equipment 142
To data packet parsed, obtain specific bit stream data；Finally, equipment 14 passes through second processor 1421 for special code fluxion
According to being decoded, specific multi-medium data is generated, and can will be decoded by the display being connected with output port 1422
Multi-medium data is played out or is shown.Using the embodiment of the present application, equipment 14 passes through first processor 1412 for multimedia number
According to being encoded, to obtain compressed bit stream data, it may make the high-clear display being connected with output port 1422 no-delay
Ground plays visually lossless HD video, and user experience is higher；In addition, by the way that bit stream data is packaged into data packet transmission
Mode can reduce transmission cost expense.
The application provides a kind of computer readable storage medium, which has computer journey
Sequence, realization when which is executed by processor.
The computer readable storage medium can be the internal storage unit of equipment described in aforementioned any embodiment, such as
The hard disk or memory of equipment.The computer readable storage medium is also possible to the External memory equipment of equipment, such as matches in equipment
Standby plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD)
Card, flash card (Flash Card) etc..Further, which can also both deposit the inside including equipment
Storage unit also includes External memory equipment.The computer readable storage medium is for storing needed for computer program and equipment
Other programs and data.The computer readable storage medium, which can be also used for temporarily storing, have been exported or will export
Data.
Those of ordinary skill in the art may be aware that being described in conjunction with embodiment disclosed herein each exemplary
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It is not considered that exceeding scope of the present application.
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is set
The specific work process of standby, system and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed equipment, system and method, it can be with
It realizes by another way.For example, to describe each exemplary form and step.These functions are actually with hardware or software
Mode executes, specific application and design constraint depending on technical solution.Professional technician can be to each specific
Application use different methods to achieve the described function, but this realize it is not considered that exceeding scope of the present application.
System, the embodiment of equipment of foregoing description are only schematical, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.In addition, it is shown or discussed it is mutual it
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of equipment, system or unit or logical
Letter connection is also possible to electricity, mechanical or other form connections.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of unit therein can be selected to realize the embodiment of the present application scheme according to the actual needs
Purpose.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application
Portion or part steps.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. are various can store program
The medium of code.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should all cover within the scope of protection of this application.Therefore, the protection scope of the application should be with right
It is required that protection scope subject to.
Claims (10)
1. a kind of transmission method of multi-medium data characterized by comprising
Transmitting terminal obtains the multi-medium data, is encoded the multi-medium data by compression algorithm, obtains code stream number
According to；
The bit stream data is packaged into data packet by the transmitting terminal；
The data packet is transmitted to receiving end by interchanger by the transmitting terminal；
The receiving end parses the data packet received, obtains specific bit stream data；
The specific bit stream data is decoded by the receiving end, generates specific multi-medium data.
2. the method as described in claim 1, which is characterized in that described to be compiled the multi-medium data by compression algorithm
Code obtains bit stream data, comprising:
The multi-medium data is encoded by display stream compression algorithm, obtains bit stream data；
Alternatively,
The multi-medium data is encoded by JPEG2000 compression algorithm, obtains bit stream data.
3. method according to claim 2, which is characterized in that described by showing stream compression algorithm by the multi-medium data
It is encoded, obtains bit stream data, comprising:
By showing that stream compression algorithm is predicted, quantified and rebuild to the multi-medium data, and will be described more after reconstruction
Media data carries out entropy coding, obtains bit stream data.
4. the method as described in claim 1, which is characterized in that
The data packet includes multiple data packets；
The data packet is transmitted to receiving end by interchanger by the transmitting terminal, comprising:
Each data packet in the multiple data packet is transmitted to the receiving end respectively by interchanger by the transmitting terminal.
5. method as described in claim 1 or 4, which is characterized in that
The data packet is transmitted to receiving end by interchanger by the transmitting terminal, comprising:
Each data packet in the multiple data packet is transmitted to the reception respectively by stacked switch by the transmitting terminal
End.
6. the method as described in claim 1, which is characterized in that the specific bit stream data is decoded by the receiving end,
After generating specific multi-medium data, further includes:
The multi-medium data is output to the display being connected with the receiving end by the receiving end；The display is for showing
Show the multi-medium data.
7. a kind of Transmission system of multi-medium data characterized by comprising
Transmitting terminal and receiving end；
The transmitting terminal includes: to obtain module, coding module, package module and forwarding module；
The acquisition module, for obtaining the multi-medium data；
The coding module obtains bit stream data for encoding the multi-medium data；
The package module, for the bit stream data to be packaged into data packet；
The forwarding module, for the data packet to be transmitted to the receiving end；
The receiving end includes: receiving module, parsing module and decoder module；
The receiving module, for receiving the data packet of the forwarding module forwarding；
The parsing module obtains special code fluxion for parsing the data packet of the receiving module reception channel
According to；
The decoder module generates specific multi-medium data for the specific bit stream data to be decoded.
8. system as claimed in claim 7, which is characterized in that further include:
Output module is used for: the multi-medium data is output to the display being connected with the receiving end；The display is used
In the display multi-medium data.
9. a kind of equipment characterized by comprising memory and the processor being connected with the memory, wherein the storage
Device is configured for calling said program code for storing application code, the processor, executes such as claim 1-6
The transmission method of described in any item multi-medium datas.
10. a kind of computer readable storage medium, which is characterized in that the computer storage medium is stored with computer program,
The computer program includes program instruction, and described program instruction makes the processor execute such as right when being executed by a processor
It is required that the transmission method of the described in any item multi-medium datas of 1-6.
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Application publication date: 20191119 |