CN103888214A - Gradual-mode data coding transmission system and method - Google Patents
Gradual-mode data coding transmission system and method Download PDFInfo
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- CN103888214A CN103888214A CN201210561146.4A CN201210561146A CN103888214A CN 103888214 A CN103888214 A CN 103888214A CN 201210561146 A CN201210561146 A CN 201210561146A CN 103888214 A CN103888214 A CN 103888214A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000000750 progressive effect Effects 0.000 claims description 37
- 230000004044 response Effects 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
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- 208000003580 polydactyly Diseases 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
Abstract
Disclosed is a gradual-mode data coding transmission method which includes: obtaining a current window size of a server and storing the current window size; requesting the server to code data through use of the gradual-mode coding transmission method; according to the type of the gradual-mode coding transmission method, determining transmission quantities of the data at different times after code transmission of the server; comparing the current window size of the server with a window size when data is transmitted at last time and determining the transmission quantities of currently transmitted data of the server at different times according to the comparison result; and notifying the server to transmit data according to the transmission quantities at different times and receiving the data transmitted by the server. The invention also provides a gradual-mode data coding transmission system. Through use of the gradual-mode data coding transmission method and the gradual-mode data coding transmission system, a defect that a gradual-mode coding and transmission method is incapable of analyzing a better picture promptly is overcome.
Description
Technical field
The present invention relates to a kind of data transmission system and method, relate in particular to a kind of progressive coding transmission system and method for data.
Background technology
The mode Showing Picture on network at present has two kinds of sequential coding and progressive codings.Sequential coding refers to: after picture is processed by order left-to-right, from top to bottom, be presented on screen.Progressive coding is first by the general profile of picture or fuzzy image is presented on screen, then slowly the detailed information of picture is supplied by the requirement of client again, transmits picture by fuzzy to mode clearly.Current progressive coding adopts each fixing data volume of picture that transmits to do decoding to client, then picture is extremely clearly slowly shown by fuzzy.But this progressive coding cannot, in the time that network bandwidth allows to receive relatively large data, show the picture of certain mass in the very first time, as shown more clearly picture in the very first time.
Summary of the invention
In view of above content, be necessary to provide a kind of gradual data encoding transmission system, can overcome progressive coding and transmit the defect that cannot parse in the very first time better picture.
Also be necessary to provide a kind of gradual data encoding transmission method, can overcome progressive coding and transmit the defect that cannot parse in the very first time better picture.
Described gradual data encoding transmission system, runs on a client.This system comprises: acquisition module, for obtaining the current window size of this client, and store this current window size; Request module, for asking this server to use progressive coding transmission means to encode to data, the data after coding are temporarily stored in the buffer of this server; Adjusting module, for determine the gradation transmission quantity of data after server transfer encoding according to the kind of progressive coding transmission means, form size when relatively the current window of client size is with last transmission data, and determine the gradation transmission quantity of the current transmission data of server according to the result of this comparison; And receiver module, for notifying described server according to these definite gradation transmission quantity transmission data, receive the data of this server transmission.
Described gradual data encoding transmission method, is applied to a client.The method comprises: obtaining step, obtains the current window size of this client, and stores this current window size; Request step, asks this server to use progressive coding transmission means to encode to data, and the data after coding are temporarily stored in the buffer of this server; Set-up procedure one, determines the gradation transmission quantity of data after server transfer encoding according to the kind of progressive coding transmission means; Set-up procedure two, form size when relatively the current window of client size is with last transmission data, and according to this result relatively, determine the gradation transmission quantity of the current transmission data of server; And receiving step, notify described server according to these definite gradation transmission quantity transmission data, receive the data of this server transmission.
A kind of gradual data encoding transmission method, is applied in server.The method comprises: the request of customer in response end, for client provides a gradual data transmission terminal; Utilize encoder that data are encoded with progressive coding transmission means; Data after coding are temporarily stored in buffer; And the notice of customer in response end the gradation transmission quantity transmission data definite according to client.
Compared to prior art, described gradual data encoding transmission system, utilize the window size in TCP package to decide the data volume that at every turn sends client in progressive transmission process to, and in the time that frequency band is wider, transmit more data volume, make the very first time can parse preferably picture and show.
Accompanying drawing explanation
Fig. 1 is the running environment schematic diagram of the gradual data encoding transmission system of the present invention preferred embodiment.
Fig. 2 is the functional block diagram of gradual data encoding transmission system preferred embodiment in Fig. 1.
Fig. 3 is the operation process chart of the gradual data encoding transmission method of the present invention preferred embodiment.
Main element symbol description
| Client | 1 |
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10 |
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12 |
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14 |
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16 |
| Gradual data |
100 |
| Server | 2 |
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20 |
| Gradual data |
200 |
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22 |
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24 |
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1000 |
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1002 |
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1004 |
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1006 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
As shown in Figure 1, be the running environment schematic diagram of the gradual data encoding transmission system of the present invention preferred embodiment.This gradual data encoding transmission system 100 runs in a client 1, and this client 1 is connected with a station server 2 by network.In the present embodiment, this network is deferred to transmission control protocol (Transmission Control Protocol, TCP).
This server 2 mainly comprises memory 20, encoder 22 and buffer 24.
In this memory 20, store a gradual data encoding transmission unit 200.This gradual data encoding transmission unit 200 is made up of one or more computerization program segments, with gradual data encoding transmission system 100 interactions in client 1, to realize progressive coding and the transfer function of data.
Particularly, this gradual data encoding transmission unit 200 is for the request of customer in response end 1, for client 1 provides a gradual data transmission terminal, utilize encoder 22 that data are encoded with progressive coding transmission means, and the data after coding are temporarily stored in buffer 24.Then, gradual data encoding transmission unit 200 does corresponding transmission according to the demand of client 1 by the data in buffer 24.
In the present embodiment, because the network of client 1 connection server 2 is deferred to transmission control protocol, therefore to transfer to the data of client 1 be TCP package to server 2.
Described client 1 mainly comprises memory device 10, at least one processor 12, display screen 14 and decoder 16.
Described memory device 10 is for storing the computer programing code of described gradual data encoding transmission system 100.This memory device 10 can be the built-in memory of client 1, can be also the external memory of client 1.
Described at least one processor 12 is for carrying out the computer program code of described gradual data encoding transmission system 100, file a request to server 2, require server 2 with progressive coding transmission means, data encoding gradation to be transmitted, the TCP package that reception server 2 transmits, and utilize decoder 16 that received TCP package is carried out to decode operation.
Described display screen 14 is for showing the data that obtain after decoder 16 is to described TCP package decoding, and these data are as picture.
As shown in Figure 2, be the functional block diagram of gradual data encoding transmission system 100 preferred embodiments in Fig. 1.This gradual data encoding transmission system 100 comprises acquisition module 1000, request module 1002, adjusting module 1004 and receiver module 1006.The alleged module of the present invention has been the computer program code segments of a specific function, is more suitable for, in describing the implementation of software in computer, therefore below the present invention, software description all being described with module than program.The function of module 1000 to 1006 will be described in detail in Fig. 3.
As shown in Figure 3, be the operation process chart of the gradual data encoding transmission method of the present invention preferred embodiment.
Step S100, client 1 connects with server 2, and after successful connection, the gradual data encoding transmission unit 200 in server 2 can send information notification client 1 and successfully connect.Wherein, the information that gradual data encoding transmission unit 200 sends is a TCP package.TCP package when being different from following transmission data, TCP package is herein defined as TCP form package by the present embodiment.
Step S102, acquisition module 1000 obtains server 2 current window sizes from described TCP form package, and stores this current window size in memory device 10.
It should be noted that, the translator of English of the form size in the present embodiment is window size or sliding window size, and it once can receive or transmit the buffer size (the present embodiment is referred to as " gradation transmission quantity ") of data for defining.The principal element of determining this gradation transmission quantity is network bandwidth.
Step S104, request module 1002 transmission information, to server 2, ask this server 2 to use progressive coding transmission means to encode to data.Receive after this information at server 2, can utilize encoder 22 to carry out progressive coding to the data that need to be sent to client 1, the data after coding are TCP package.For example, described data can be picture, will after coding of graphics, obtain TCP package.
Step S106, server 2 sends the 1 progressive coding success of information notification client, and the data (being TCP package) after coding are temporarily stored in buffer 24.
Step S108, adjusting module 1004 is determined the gradation transmission quantity of server 2 Transmission TCP packages according to the kind of progressive coding transmission means.
Wherein, gradation transmission quantity difference corresponding to the kind of every kind of progressive coding transmission means.In the present embodiment, the kind of this progressive coding transmission means comprises that a pictures is divided into multiple digit planes (bit plane) to carry out layering gradation transmission, a pictures is carried out to the rear coefficient gradation transmission according to producing of discrete cosine (DCT) conversion.
For example, if the kind of progressive coding transmission means is carried out layering transmission for a pictures is divided into multiple bit plane, 1004 of adjusting modules are determined the TCP package that once passes how many bit plane.If the kind of progressive coding transmission means is for carrying out a pictures the rear coefficient gradation transmission according to producing of DCT conversion, 1004 of adjusting modules are determined the TCP packages that once pass how many coefficients.
Step S110, the adjusting module 1004 form size (being designated hereinafter simply as " last form size ") when relatively the current window size of client is with last transmission data, and in step S112, judge whether this current window size is more than or equal to last form size.When judged result is while being no, flow process enters step S114.When judged result is when being, flow process enters step S116.
Step S114, adjusting module 1004 reduces the gradation transmission quantity of data, and then flow process enters step S118.That is: the gradation transmission quantity when transmission quantity of current each transmission TCP package is less than last transmission data.
Step S116, adjusting module 1004 improves the gradation transmission quantity of data, and then flow process enters step S118.That is: the gradation transmission quantity when transmission quantity of current each transmission TCP package is greater than last transmission data.
Suppose that the kind of the progressive coding transmission means that server 2 adopts does gradation transmission for a pictures being divided into eight bit plane, if current window size is more than or equal to last form size, represent that network bandwidth can receive than also many TCP package of last time, now, client 1 can require server 2 once to transmit more bit plane.For example, gradation transmission quantity while supposing last transmission data is for once passing four layers of bit plane, if current window size is more than or equal to last form size, so, the gradation transmission quantity of current data can be brought up to five layers of each transmission, six layers, seven layers or eight layers of bit plane.
If current window size is less than last form size, represent that client 1 cannot process more TCP package at present, client 1 can require server 2 only to transmit one deck bit plane at every turn, so still can reach the effect of progressive transmission.For example, gradation transmission quantity while supposing last transmission data is for once passing four layers of bit plane, if current window size is less than last form size, so, the gradation transmission quantity of current data can be reduced to three layers of each transmission, two-layer or one deck bit plane.
Step S118, receiver module 1006 notifies described server 2 according to these definite gradation transmission quantity transmission data, receive the data of this server transmission, client 1 utilizes decoder 16 to the decoding data operation receiving, and decoded data are presented on display screen 14.Herein, the data that server 2 transmits are TCP package.
Step S110, data volume as required of receiver module 1006 and the data volume receiving judge whether end of transmission of data.
When judged result is data when end of transmission, process ends.
When judged result is data not when end of transmission, flow process is back to step S110.
Finally it should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not depart from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a gradual data encoding transmission method, is applied to a client, it is characterized in that, the method comprises:
Obtaining step, obtains the current window size of the server being connected with this client, and stores this current window size;
Request step, asks this server to use progressive coding transmission means to encode to data, and the data after coding are temporarily stored in the buffer of this server;
Set-up procedure one, determines the gradation transmission quantity of data after this server transfer encoding according to the kind of progressive coding transmission means;
Set-up procedure two, the form size when current window size of more described server is transmitted data with the last time, and according to this result relatively, determine the gradation transmission quantity of the current transmission data of server; And
Receiving step, notifies described server according to these definite gradation transmission quantity transmission data, receives the data of this server transmission.
2. gradual data encoding transmission method as claimed in claim 1, is characterized in that, described set-up procedure two comprises:
If form size when current window size is more than or equal to last transmission data, improves the gradation transmission quantity of the current transmission data of described server; And
If form size when current window size is less than last transmission data, reduces the gradation transmission quantity of the current transmission data of described server.
3. gradual data encoding transmission method as claimed in claim 1, it is characterized in that, after the request that described server is encoded to data in the use progressive coding transmission means that receives client transmission, the data that need to be transferred to client are carried out to progressive coding, inform this client progressive coding success, and the data after coding are temporarily stored in buffer.
4. gradual data encoding transmission method as claimed in claim 1, is characterized in that, the method also comprises:
Decoding step, by the decoding data operation receiving.
5. gradual data encoding transmission method as claimed in claim 1, is characterized in that, the method comprises before obtaining step:
Described client and described server connect; And
After successful connection, this server informs that this client successfully connects.
6. a gradual data encoding transmission system, runs on a client, it is characterized in that, this system comprises:
Acquisition module, for obtaining the current window size of this client, and stores this current window size;
Request module, for asking this server to use progressive coding transmission means to encode to data, the data after coding are temporarily stored in the buffer of this server;
Adjusting module, for determine the gradation transmission quantity of data after server transfer encoding according to the kind of progressive coding transmission means, form size when relatively the current window of client size is with last transmission data, and determine the gradation transmission quantity of the current transmission data of server according to the result of this comparison; And
Receiver module, for notifying described server according to these definite gradation transmission quantity transmission data, receives the data of this server transmission.
7. gradual data encoding transmission system as claimed in claim 6, is characterized in that, described adjusting module is determined the gradation transmission quantity of the current transmission data of server by following steps:
If form size when current window size is more than or equal to last transmission data, improves the gradation transmission quantity of the current transmission data of described server; And
If form size when current window size is less than last transmission data, reduces the gradation transmission quantity of the current transmission data of described server.
8. gradual data encoding transmission system as claimed in claim 6, it is characterized in that, after the request that described server is encoded to data in the use progressive coding transmission means that receives client transmission, the data that need to be transferred to client are carried out to progressive coding, inform this client progressive coding success, and the data after coding are temporarily stored in buffer.
9. gradual data encoding transmission system as claimed in claim 6, is characterized in that, this system also comprises decoder, for the decoding data receiving is operated.
10. a gradual data encoding transmission method, is applied in server, it is characterized in that, the method comprises:
The request of customer in response end, for client provides a gradual data transmission terminal;
Utilize encoder that data are encoded with progressive coding transmission means;
Data after coding are temporarily stored in buffer; And
The notice of customer in response end the gradation transmission quantity transmission data definite according to client.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592952.0A CN107181573A (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding Transmission system |
| CN201210561146.4A CN103888214B (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding transmission method |
| CN201710710212.2A CN107395328B (en) | 2012-12-21 | 2012-12-21 | Progressive data coding transmission method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210561146.4A CN103888214B (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding transmission method |
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|---|---|---|---|
| CN201710710212.2A Division CN107395328B (en) | 2012-12-21 | 2012-12-21 | Progressive data coding transmission method |
| CN201710592952.0A Division CN107181573A (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding Transmission system |
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| CN103888214A true CN103888214A (en) | 2014-06-25 |
| CN103888214B CN103888214B (en) | 2017-12-15 |
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| CN201710710212.2A Active CN107395328B (en) | 2012-12-21 | 2012-12-21 | Progressive data coding transmission method |
| CN201710592952.0A Pending CN107181573A (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding Transmission system |
| CN201210561146.4A Expired - Fee Related CN103888214B (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding transmission method |
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| CN201710710212.2A Active CN107395328B (en) | 2012-12-21 | 2012-12-21 | Progressive data coding transmission method |
| CN201710592952.0A Pending CN107181573A (en) | 2012-12-21 | 2012-12-21 | Gradual data encoding Transmission system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446081A (en) * | 2019-09-04 | 2019-11-12 | 南京安谱软件有限公司 | A kind of method for processing video frequency, apparatus and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102075741B (en) * | 2010-12-14 | 2012-12-12 | 北京华环电子股份有限公司 | Image transmission method, terminal and system |
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2012
- 2012-12-21 CN CN201710710212.2A patent/CN107395328B/en active Active
- 2012-12-21 CN CN201710592952.0A patent/CN107181573A/en active Pending
- 2012-12-21 CN CN201210561146.4A patent/CN103888214B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1783852A (en) * | 2004-12-03 | 2006-06-07 | 微软公司 | Efficient transfer of messages using reliable messaging protocols for WEB services |
| US20100054123A1 (en) * | 2008-08-30 | 2010-03-04 | Liu Yong | Method and device for hign utilization and efficient flow control over networks with long transmission latency |
| US20120078994A1 (en) * | 2010-09-29 | 2012-03-29 | Steve Jackowski | Systems and methods for providing quality of service via a flow controlled tunnel |
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| 付放鸣: "面向自适应码流的渐进编码方法的研究", 《信息安全与技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446081A (en) * | 2019-09-04 | 2019-11-12 | 南京安谱软件有限公司 | A kind of method for processing video frequency, apparatus and system |
| CN110446081B (en) * | 2019-09-04 | 2022-02-22 | 南京安谱软件有限公司 | Video processing method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107395328B (en) | 2019-12-13 |
| CN107181573A (en) | 2017-09-19 |
| CN107395328A (en) | 2017-11-24 |
| CN103888214B (en) | 2017-12-15 |
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