CN103139527B - Parameter consultation method in video communication, device and video communication terminal - Google Patents
Parameter consultation method in video communication, device and video communication terminal Download PDFInfo
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- CN103139527B CN103139527B CN201110398757.7A CN201110398757A CN103139527B CN 103139527 B CN103139527 B CN 103139527B CN 201110398757 A CN201110398757 A CN 201110398757A CN 103139527 B CN103139527 B CN 103139527B
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Abstract
The invention discloses the parameter consultation method in a kind of video communication, device and video communication terminal.Wherein, the method comprises the list of video transmitting capacity and the video reception capabilities list of the video communication calling terminal that video communication called end receiver, video communication calling terminal sends; The video finding out the video communication calling terminal that the video reception ability that self possesses with video communication called end matches from the list of video transmitting capacity sends parameter, from video reception capabilities list, find out the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with video communication called end matches, and the video found is sent parameter and video reception parameter feedback to video communication calling terminal; Receive video communication calling terminal to the confirmation of video parameter after, video communication called end and video communication calling terminal utilize the mutual transmitting video-frequency flow of the video parameter after consulting.The present invention can improve video communication quality by asymmetric negotiation.
Description
Technical field
The present invention relates to technical field of video communication, especially, relate to the parameter consultation method in a kind of video communication, device and video communication terminal.
Background technology
The development of mobile Internet has promoted the growth of intelligent terminal industrial chain, and smart mobile phone, panel computer etc. become the focus of terminal market.The release of new operating system and the lifting of chip handling property make all kinds of ability having had screen terminal to possess support exploitation video communication function, operator, terminal development business and the Internet manufacturer etc. start one after another to develop and release the product of the point-to-point video communication function with the Internet or 3G, such as, from the Facetime IPhone4 to the true product of all kinds of net, as can be seen here, the application of video communication becomes more and more extensive.
At present when realizing point-to-point video communication, terminal must use same code/decode format and identical resolution, such as, QCIF (QuarterCommonIntermediateFormat), CIF (CommonIntermediateFormat), VGA (VideoGraphicsArray) or D1 (704 × 576) etc. just can communicate.And along with the increase of terminal kinds and the development of encoding and decoding technique, often occur that screen size difference is very large and coding/decoding capability is different terminal carries out video communication mutually, to the good terminal of performance be caused also must to use older encoding and decoding technique and carry out video communication far below the image of its display screen resolution like this, cause the picture quality of at least one party of video communication lower, and then make Consumer's Experience very poor.
Summary of the invention
The technical problem that the present invention will solve is to provide parameter consultation method, device and video communication terminal in a kind of video communication, can improve video communication quality.
According to an aspect of the present invention, propose the parameter consultation method in a kind of video communication, be included in communication process, the video transmitting capacity list of the video communication calling terminal that video communication called end receiver, video communication calling terminal sends and video reception capabilities list; The video finding out the video communication calling terminal that the video reception ability that self possesses with video communication called end matches from the video transmitting capacity list of video communication calling terminal sends parameter, from the video reception capabilities list of video communication calling terminal, find out the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with video communication called end matches, and the video of the video communication calling terminal found is sent parameter and video reception parameter feedback to video communication calling terminal; Receive video communication calling terminal to the confirmation of video parameter after, video communication called end and video communication calling terminal utilize the mutual transmitting video-frequency flow of the video parameter after consulting.
According to a further aspect in the invention, also proposed the parameter negotiation device in a kind of video communication, comprise capabilities list receiving element, the video transmitting capacity list sent for the communication of receiver, video in communication process calling terminal and video reception capabilities list; Video parameter matching unit, be connected with capabilities list receiving element, video for finding out the video communication calling terminal that the video reception ability that self possesses with video communication called end matches from the video transmitting capacity list received sends parameter, from the video reception capabilities list received, find out the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with video communication called end matches, and the video of the video communication calling terminal found is sent parameter and video reception parameter feedback to video communication calling terminal; Video Transmission Unit, is connected with video parameter matching unit, for receive video communication calling terminal to the confirmation of video parameter after, utilize the mutual transmitting video-frequency flow of the video parameter after consulting with video communication calling terminal.
According to another aspect of the invention, also proposed a kind of video communication terminal, comprise the parameter negotiation device in aforesaid video communication.
Parameter consultation method in video communication provided by the invention, device and video communication terminal, in video communication, the terminal of intercommunication video can send parameter to video and video reception parameter is held consultation respectively, through consultation, the video parameter that terminal sends code stream can be asymmetric with the video parameter of reception code stream, thus the quality that ensure that video communication, the processing pressure that saves bandwidth, reduce chip, also effectively make use of the video processing capabilities of high-performance terminal simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of an embodiment of parameter consultation method in video communication of the present invention.
Fig. 2 is the message flow schematic diagram of another embodiment of parameter consultation method in video communication of the present invention.
Fig. 3 is the structural representation of an embodiment of parameter negotiation device in video communication of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.Exemplary embodiment of the present invention and explanation thereof for explaining the present invention, but do not form inappropriate limitation of the present invention.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
Fig. 1 is the schematic flow sheet of an embodiment of parameter consultation method in video communication of the present invention.
As shown in Figure 1, this embodiment can comprise the following steps:
S102, in communication process, the video transmitting capacity list of the video communication calling terminal that video communication called end receiver, video communication calling terminal sends and video reception capabilities list;
S104, the video finding out the video communication calling terminal that the video reception ability that self possesses with video communication called end matches from the video transmitting capacity list of video communication calling terminal sends parameter, from the video reception capabilities list of video communication calling terminal, find out the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with video communication called end matches, and the video of the video communication calling terminal found is sent parameter and video reception parameter feedback to video communication calling terminal;
S106, receive video communication calling terminal to the confirmation of video parameter after, video communication called end and video communication calling terminal utilize the mutual transmitting video-frequency flow of the video parameter after consulting.
This embodiment in video communication process of establishing based on SDP (SessionDescriptionProtocol, Session Description Protocol) extend communication parameter listings (such as, comprise video and send parameter and video reception parameter), asymmetric video communication coding/decoding negotiation mechanism during to realize video communication (, sending direction can use different video parameters from receive direction), not only save user bandwidth, and the requirement alleviated terminal processing chip, improve Consumer's Experience simultaneously.
Wherein, in step s 102, the list of video transmitting capacity all can include but not limited to coding/decoding capability and the resolution capabilities corresponding with various coding/decoding capability with video reception capabilities list, to inform the coding/decoding capability that video communication called end video communication calling terminal is supported and resolution capabilities respectively, particularly, video transmitting capacity list and video reception capabilities list can be sent by SDP agreement.
In an example, suppose that the capabilities list of video communication calling terminal can as described in Table 1:
Table 1
Meanwhile, the ability of video communication called end is supposed as described in Table 2:
Table 2
Based on above-mentioned hypothesis, the video that video communication called end can find out the calling terminal identical with the receiving ability of called end from table 1 based on the video transmitting capacity of self shown in above-mentioned table 2 in step S104 sends parameter " H.263; CIF ", the video reception parameter " H.264, D1 " of the calling terminal identical with the transmitting capacity of called end can also be found out.
It is to be noted, video communication called end may match the available video parameter of many groups according to self-ability from the capabilities list that video communication calling terminal sends, now, can random selecting one group feed back to video communication calling terminal, also can choose calling terminal and all good one group of video parameter of called end display effect feeds back to video communication calling terminal.
Further, according to the display demand of video communication calling terminal, video communication calling terminal is when sending video reception capabilities list to video communication called end, can increase in video reception capabilities list one with coding/decoding capability and resolution capabilities weight option one to one, to inform that video communication called end can code encoding/decoding mode that preferentially weight selection is high and resolution format send when video communication.Such as, as described in Table 3:
Table 3
When finding the video reception parameter of the video communication calling terminal that many groups match with video communication called end transmitting capacity the video reception capabilities list of video communication called end from video communication calling terminal, by the video reception parameter feedback of video communication calling terminal maximum for weight to video communication calling terminal.Suppose that video communication called end matches video reception parameter " H.264; D1 " and " H.264; QCIF " of two groups of video communication calling terminals according to the transmitting capacity of self, select " H.264; D1 " video reception parameter as video communication calling terminal according to weight option again, the video reception parameter selected is sent to video communication calling terminal.
In addition, in order to reduce implementation complexity, can only to the weight of certain video reception parameter of calling party's recommendation in the capabilities list that video communication calling terminal sends, if match the many groups of video reception parameters met the demands, then direct that group receiving parameter comprising weight is fed back to video communication calling terminal.
If the capabilities list video communication called end that video communication calling terminal provides all can not be supported, the capabilities list that then video communication called end is supported sends to video communication calling terminal again, when the video capability that video communication calling terminal still can use some not to be comprised in capabilities list, by video communication calling terminal, the capabilities list of video communication called end support received and the ability of calling terminal can be matched, find out available (namely, identical) video sends parameter and video reception parameter, the matching process that video communication calling terminal realizes is identical with the matching principle that above-mentioned video communication called end realizes, if find available video parameter, then video communication calling terminal by the parameter feedback that finds to video communication called end, after the acknowledge message receiving called end transmission, both sides can start by the video parameter consulted to transmit asymmetric video flowing.
In some cases, if when video communication called end does not support that above-mentioned this asymmetric negotiation is machine-processed (such as, when supporting that the terminal of asymmetric video communication coding/decoding negotiation mechanism finds not comprise asymmetric video communication coding/decoding negotiation parameter in the negotiated packet that the terminal of opposite end sends), video communication calling terminal and video communication called end utilize SDP negotiation mechanism to determine symmetrical video parameter, namely, video communication calling terminal sends its video capability list supported to video communication called end, now do not distinguish sending direction and receive direction (namely, send identical with the video parameter received), the ability of reception and himself ability match by video communication called end, find out one group of identical video parameter, and feed back to video communication calling terminal, thus realize symmetrical video parameter negotiation.
Wherein, the terminal that the video communication calling terminal of above-described embodiment and video communication called end use can for supporting any terminal of video communication function, such as, mobile phone, panel computer, PC, Set Top Box etc., and the terminal of the support video communication that may occur future.
Fig. 2 is the message flow schematic diagram of another embodiment of parameter consultation method in video communication of the present invention.
As shown in Figure 2, can comprise the following steps:
S202, video communication terminal A is by SIP (SessionInitiationProtocol, session initiation protocol) to consult first with video communication terminal B, the transmitting capacity list of oneself and receiving ability list are all sent to terminal B by terminal A in Invite message;
S204, terminal B is after the negotiation request receiving terminal A, 100Trying message and 180Ringing message is sent to terminal A, and the capabilities list oneself supported and terminal A are sent capabilities list and compare, therefrom select transmission parameter and the receiving parameter of the one group of terminal A matched, then the parameter chosen is sent to terminal A by 200OK;
S206, terminal A, after receiving the video communication capabilities message that terminal B beams back, send ACK message to confirm to terminal B;
S208, terminal B are after receiving the acknowledge message that terminal A sends, and asymmetric coding/decoding negotiation process completes, and terminal A and terminal B sets up asymmetric encoding and decoding stream, starts to carry out video communication.
It is pointed out that the present invention is not only applicable to the video communication of point-to-point, can also be applied in point-to-multipoint video communication scene simultaneously.
One of ordinary skill in the art will appreciate that, realize the whole of said method embodiment to have been come by the hardware that program command is relevant with part steps, aforesaid program can be stored in a computing equipment read/write memory medium, this program is when performing, perform and comprise the step of said method embodiment, and aforesaid storage medium can comprise ROM, RAM, magnetic disc and CD etc. various can be program code stored medium.
Fig. 3 is the structural representation of an embodiment of parameter negotiation device in video communication of the present invention.
As shown in Figure 3, the device 300 in this embodiment can comprise:
Capabilities list receiving element 302, the video transmitting capacity list sent for the communication of receiver, video in communication process calling terminal and video reception capabilities list, wherein, the list of video transmitting capacity with can comprise coding/decoding capability and the resolution capabilities corresponding with various coding/decoding capability in video reception capabilities list;
Video parameter matching unit 304, be connected with capabilities list receiving element, video for finding out the video communication calling terminal that the video reception ability that self possesses with video communication called end matches from the video transmitting capacity list received sends parameter, from the video reception capabilities list received, find out the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with video communication called end matches, and the video of the video communication calling terminal found is sent parameter and video reception parameter feedback to video communication calling terminal;
Video Transmission Unit 306, is connected with video parameter matching unit, for receive video communication calling terminal to the confirmation of video parameter after, utilize the mutual transmitting video-frequency flow of the video parameter after consulting with video communication calling terminal.
This embodiment in video communication process of establishing based on SDP protocol extension communication parameter listings, asymmetric video communication coding/decoding negotiation mechanism during to realize video communication, not only save user bandwidth, and alleviate the requirement to terminal processing chip, improve Consumer's Experience simultaneously.
Further, the weight corresponding with coding/decoding capability and resolution capabilities can also be comprised in video reception capabilities list, when now video parameter matching unit can also be used for the video reception parameter finding the video communication calling terminal that many groups match with video communication called end transmitting capacity the video reception capabilities list of video communication called end from video communication calling terminal, by the video reception parameter feedback of video communication calling terminal maximum for weight to video communication calling terminal.
In the another embodiment of parameter negotiation device of the present invention, Video Transmission Unit also for when video communication called end does not support that asymmetry parameter is consulted, utilizes SDP negotiation mechanism to determine symmetrical video parameter with video communication calling terminal.
In actual applications, the parameter negotiation device in above-mentioned video communication can be placed in video communication terminal, to realize the asymmetric negotiation of video parameter.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and part identical with similar between each embodiment can cross-reference.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part can see the explanation of embodiment of the method part.
The above embodiment of the present invention can be asymmetric realizing making terminal send the coded format of code stream and the coded format of resolution and reception code stream and resolution by the negotiation of two lateral terminals of intercommunication video in video communication, thus ensure the quality of video communication, and save bandwidth and reduce the pressure of chip process; Meanwhile, terminal can also increase weight in negotiations process in the coded format of recipient and resolution capabilities, thus ensures that the coded format that weight is high and resolution are preferentially used when consulting.In addition, it is pointed out that the present invention can make full use of the effective capacity (that is, utilizing the best parameter configuration that can support as far as possible) of video communication terminal, avoid the waste of effective capacity, thus improve the quality of video communication as far as possible.
Although be described in detail specific embodiments more of the present invention by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (9)
1. the parameter consultation method in video communication, is characterized in that, comprising:
In communication process, the video transmitting capacity list of the described video communication calling terminal that video communication called end receiver, video communication calling terminal sends and video reception capabilities list, wherein, the list of described video transmitting capacity and video reception capabilities list comprise coding/decoding capability and the resolution capabilities corresponding with various coding/decoding capability;
The video finding out the video communication calling terminal that the video reception ability that self possesses with described video communication called end matches from the video transmitting capacity list of described video communication calling terminal sends parameter, from the video reception capabilities list of described video communication calling terminal, find out the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with described video communication called end matches, and the video of the described video communication calling terminal found is sent parameter and video reception parameter feedback to described video communication calling terminal;
Receive described video communication calling terminal to the confirmation of video parameter after, described video communication called end and described video communication calling terminal utilize the mutual transmitting video-frequency flow of the video parameter after consulting.
2. the parameter consultation method in video communication according to claim 1, is characterized in that, also comprises the weight corresponding with coding/decoding capability and resolution capabilities in described video reception capabilities list.
3. the parameter consultation method in video communication according to claim 2, is characterized in that, described method also comprises:
When finding the video reception parameter of the video communication calling terminal that many groups match with described video communication called end transmitting capacity the video reception capabilities list of described video communication called end from described video communication calling terminal, give described video communication calling terminal by the video reception parameter feedback of video communication calling terminal maximum for weight.
4. the parameter consultation method in video communication according to claim 1, is characterized in that, described method also comprises:
When described video communication called end does not support that asymmetry parameter is consulted, SDP negotiation mechanism is utilized to determine symmetrical video parameter with described video communication calling terminal.
5. the parameter negotiation device in video communication, is characterized in that, comprising:
Capabilities list receiving element, the video transmitting capacity list sent for the communication of receiver, video in communication process calling terminal and video reception capabilities list, wherein, the list of described video transmitting capacity and video reception capabilities list comprise coding/decoding capability and the resolution capabilities corresponding with various coding/decoding capability;
Video parameter matching unit, be connected with described capabilities list receiving element, video for finding out the video communication calling terminal that the video reception ability that self possesses with video communication called end matches from the video transmitting capacity list received sends parameter, the video reception parameter of the video communication calling terminal that the video transmitting capacity that self possesses with video communication called end matches is found out from the video reception capabilities list received, and the video of described video communication calling terminal found is sent parameter and video reception parameter feedback to described video communication calling terminal,
Video Transmission Unit, is connected with described video parameter matching unit, for receive described video communication calling terminal to the confirmation of video parameter after, utilize the mutual transmitting video-frequency flow of the video parameter after consulting with described video communication calling terminal.
6. the parameter negotiation device in video communication according to claim 5, is characterized in that, also comprises the weight corresponding with coding/decoding capability and resolution capabilities in described video reception capabilities list.
7. the parameter negotiation device in video communication according to claim 6, it is characterized in that, when described video parameter matching unit also for finding the video reception parameter of the video communication calling terminal that many groups match with described video communication called end transmitting capacity the video reception capabilities list of described video communication called end from described video communication calling terminal, give described video communication calling terminal by the video reception parameter feedback of video communication calling terminal maximum for weight.
8. the parameter negotiation device in video communication according to claim 5, it is characterized in that, described Video Transmission Unit also for when described video communication called end does not support that asymmetry parameter is consulted, utilizes SDP negotiation mechanism to determine symmetrical video parameter with described video communication calling terminal.
9. a video communication terminal, is characterized in that, comprises the parameter negotiation device in the video communication according to any one of claim 5-8.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595948B (en) * | 2013-08-14 | 2017-08-25 | 郭洪斌 | The adaptive video call system of resolution ratio and method |
| CN103702061A (en) * | 2013-12-23 | 2014-04-02 | 上海网达软件股份有限公司 | Automatic adjustment method of resolution of video call of intelligent terminal |
| WO2015161512A1 (en) * | 2014-04-25 | 2015-10-29 | Abb Technology Ltd | Methods and devices for video communication in a door entry system, and a door entry system |
| CN105812705B (en) * | 2014-12-31 | 2019-04-12 | 华为终端（东莞）有限公司 | A kind of video communication method, terminal and system |
| CN105357465A (en) * | 2015-11-17 | 2016-02-24 | 贵阳朗玛信息技术股份有限公司 | Method for realizing video call and video relay server |
| CN106254354B (en) * | 2016-08-10 | 2019-04-26 | 东北大学 | A kind of SDP negotiation method of asymmetric media parameter |
| CN106973252B (en) * | 2017-03-17 | 2019-08-20 | 中煤电气有限公司 | A kind of video call method and system |
| CN110740478A (en) * | 2018-07-18 | 2020-01-31 | 成都鼎桥通信技术有限公司 | Video resolution negotiation method and device |
| WO2021164490A1 (en) * | 2020-02-20 | 2021-08-26 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Methods, apparatus and user equipment for wireless communication |
| CN111683217B (en) * | 2020-06-16 | 2023-03-14 | 深圳Tcl数字技术有限公司 | Video call method, system, equipment, network module and readable storage medium |
| CN112822517A (en) * | 2021-01-08 | 2021-05-18 | 西安万像电子科技有限公司 | Resolution adaptation method and device and nonvolatile storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764196A (en) * | 2005-11-15 | 2006-04-26 | 中兴通讯股份有限公司 | Safety grade arranging method |
| CN1885785A (en) * | 2006-07-04 | 2006-12-27 | 华为技术有限公司 | MCU cascade system and establishing and communication method for the same |
| CN101110946A (en) * | 2007-08-17 | 2008-01-23 | 中兴通讯股份有限公司 | Method for switching audio and video communication of conversation initialized protocol terminal |
| CN101137245A (en) * | 2006-08-24 | 2008-03-05 | 三星电子株式会社 | Method and apparatus for video telephony in mobile communication terminal |
| EP2007105A1 (en) * | 2007-06-22 | 2008-12-24 | Accenture Global Services GmbH | Session initiation protocol adaptor |
| CN101651816A (en) * | 2009-09-02 | 2010-02-17 | 中兴通讯股份有限公司 | Method, device and system for creating videophone session |
| CN101677388A (en) * | 2008-09-17 | 2010-03-24 | 中国移动通信集团公司 | Visual communication system, terminal gateway, video gateway and visual communication method |
| CN101888519A (en) * | 2009-05-14 | 2010-11-17 | 华为技术有限公司 | Method for sharing desktop contents and intelligent equipment |
-
2011
- 2011-12-05 CN CN201110398757.7A patent/CN103139527B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764196A (en) * | 2005-11-15 | 2006-04-26 | 中兴通讯股份有限公司 | Safety grade arranging method |
| CN1885785A (en) * | 2006-07-04 | 2006-12-27 | 华为技术有限公司 | MCU cascade system and establishing and communication method for the same |
| CN101137245A (en) * | 2006-08-24 | 2008-03-05 | 三星电子株式会社 | Method and apparatus for video telephony in mobile communication terminal |
| EP2007105A1 (en) * | 2007-06-22 | 2008-12-24 | Accenture Global Services GmbH | Session initiation protocol adaptor |
| CN101110946A (en) * | 2007-08-17 | 2008-01-23 | 中兴通讯股份有限公司 | Method for switching audio and video communication of conversation initialized protocol terminal |
| CN101677388A (en) * | 2008-09-17 | 2010-03-24 | 中国移动通信集团公司 | Visual communication system, terminal gateway, video gateway and visual communication method |
| CN101888519A (en) * | 2009-05-14 | 2010-11-17 | 华为技术有限公司 | Method for sharing desktop contents and intelligent equipment |
| CN101651816A (en) * | 2009-09-02 | 2010-02-17 | 中兴通讯股份有限公司 | Method, device and system for creating videophone session |
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