CN105828016A - Video conversation method and video conversation terminal - Google Patents
Video conversation method and video conversation terminal Download PDFInfo
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- CN105828016A CN105828016A CN201610277855.8A CN201610277855A CN105828016A CN 105828016 A CN105828016 A CN 105828016A CN 201610277855 A CN201610277855 A CN 201610277855A CN 105828016 A CN105828016 A CN 105828016A
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- video
- call
- capturing rates
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- calling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
Abstract
The invention discloses a video conversation method and a video conversation end, and belongs to the technical filed of video conversation. The video conversation method comprises the following steps: adopting a video initiating end in transmitting a conversation request message to a video transferring end, the conversation request message carrying a first video acquisition rate associated with the video initiating end; the video transferring end analyzing the conversation request message and transferring the conversation request message to a video receiving end; the video receiving end analyzing the conversation request message and returning a conversation responding message to the video transferring end, the conversation responding message carrying a second video acquisition rate associated with a second video client; the video transferring end transferring the conversation responding message to the video initiating end; the video initiating end analyzing the conversation responding message, and transmitting a conversation determining message to the second video client through the video transferring end, and then conducting a video conversation. The technical solution has the beneficial effect of avoiding poor video conversation experience caused by asymmetry between the uplink and downlink bandwidths.
Description
Technical field
The present invention relates to video call technology field, particularly relate to a kind of video call method and video calling end.
Background technology
Growing along with Internet technology, video calling based on internet is more and more universal in the life of people.Existing point-to-point video calling, needs the communication informations such as convergence voice, video and data.But converged communication problem is exactly the problem easily causing network performance, the existing network performance of communication quality heavy dependence of converged communication, the quality of converged communication to be ensured, needs internet to be not only provided that multiple service, also to ensure superperformance end to end.The problems such as and the situation of the internet of present stage is more complicated, both sides' bandwidth conditions of point-to-point communication is uneven, and bandwidth time delay is relatively big and bandwidth is unstable all can limit the quality of video calling.
Summary of the invention
Based on the above-mentioned problems in the prior art, a kind of video call method and the technical scheme of video calling end are now provided, it is intended to avoid the problem that in the asymmetric point-to-point video call process caused of Operation Network upstream and downstream bandwidth, Experience Degree is poor, reduce network carrying load, improve network transmission quality, improve video calling and experience.
Technique scheme specifically includes:
A kind of video call method, wherein, including:
Step S1, uses a video originating end to send a call request message to a video transfer end, carries the first video capturing rates being associated with described video originating end in described call request message；
Step S2, described video transfer end resolves described call request message, and described call request message is forwarded to video receiver；
Step S3, described video receiver resolves described call request message, and returns a call response message to described video transfer end, carries the second video capturing rates being associated with described second videoconference client in described call response message；
Step S4, described call response message is forwarded to described video originating end by described video transfer end；
Step S5, described video originating end resolves described call response message, and sends a call confirmation message by described video transfer end to described second videoconference client, carries out video calling subsequently；
In described step S3, described video receiver resolves described call request message, and using one relatively low in described first video capturing rates and described second video capturing rates as the video capturing rates consulting in described video calling to perform, and
In described step S4, described video originating end resolves described call response message, and using one relatively low in described first video capturing rates and described second video capturing rates as the video capturing rates consulting in described video calling to perform.
Preferably, this video call method, wherein, described video transfer end is the service end of dialogue-based initiation protocol work.
Preferably, this video call method, wherein, described call request message and described call response message are all for the message being made up of Session Description Protocol.
Preferably, this video call method, wherein, in described step S2, after described video transfer termination receives described call request message, return a call to described video originating end and attempt message；
It is the message being made up of Session Description Protocol that message is attempted in described call.
Preferably, this video call method, wherein, in described step S5, carry out described video calling between described video originating end and described video receiver, and use RTP to carry out the transmission of video data.
Preferably, this video call method, wherein, it is divided into multiple different value grade by descending for the possible value of video capturing rates；
During described video calling, described video originating end and described video receiver are all as video calling end；
During described video calling, if a video calling end detects that video transmission quality declines, then detect that video transmission quality declines described video calling end and obtains an amended video capturing rates according to current video capturing rates；
Subsequently, using described amended video capturing rates as described first video capturing rates, using described current video capturing rates as described second video capturing rates, to detect that described video calling end that video transmission quality declines is as described video originating end, and using another described video calling end as described video receiver, re-execute described step S1 to described step S5；
The described value grade of described amended video capturing rates is less than the described value grade of described current video capturing rates.
A kind of video calling end, wherein, uses above-mentioned video call method.
Technique scheme provides the benefit that: provide a kind of video call method, it can be avoided that the problem that in the asymmetric point-to-point video call process caused of Operation Network upstream and downstream bandwidth, Experience Degree is poor, reduce network carrying load, improve network transmission quality, improve video calling and experience.
Accompanying drawing explanation
Fig. 1 is in the preferred embodiment of the present invention, the schematic flow sheet of a kind of video call method；
Fig. 2 is in the preferred embodiment of the present invention, performs the facility environment schematic diagram of video call method；
Fig. 3 is in the preferred embodiment of the present invention, the sequential flow chart of video call method.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, broadly fall into the scope of protection of the invention.
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as limiting to the invention.
In the preferred embodiment of the present invention, based on the above-mentioned problems in the prior art, a kind of video call method of existing offer, the method is concrete as it is shown in figure 1, include:
Step S1, uses a video originating end to send a call request message to a video transfer end, carries the first video capturing rates being associated with video originating end in call request message；
Step S2, video transfer end resolves call request message, and call request message is forwarded to video receiver；
Step S3, video receiver resolves call request message, and returns a call response message to video transfer end, carries, in call response message, the second video capturing rates being associated with the second videoconference client；
Step S4, call response message is forwarded to video originating end by video transfer end；
Step S5, video originating end resolves call response message, and sends a call confirmation message by video transfer end to the second videoconference client, carries out video calling subsequently；
In above-mentioned steps S3, video receiver resolves call request message, and using one relatively low in the first video capturing rates and the second video capturing rates as the video capturing rates consulting in video calling to perform, and
In above-mentioned steps S4, video originating end resolves call response message, and using one relatively low in the first video capturing rates and the second video capturing rates as the video capturing rates consulting in video calling to perform.
In a specific embodiment, first the facility environment performing above-mentioned video communication method is set, as in figure 2 it is shown, include:
One video originating end A, this video originating end A, as the requesting party of video calling, initiate the request of a video calling when user exists video calling demand by internet；
One video transfer end B, this video transfer end B connect above-mentioned video originating end A, for the video request that above-mentioned video originating end A initiates is carried out transfer；
One video receiver C, connects above-mentioned video transfer end B, for receiving the video communication request that video transfer end B forwards, and according to this request, sets up the data transmission channel of video communication again by video transfer end B trial and video originating end A.
Then in this embodiment, in above-mentioned video communication method, first video originating end A sends a communication request message to video transfer end, and this communication request message includes first video capturing rates of this video originating end A.Specifically, this first video capturing rates is the video capturing rates of video originating end A self, such as the resolution of the photographic head of this video originating end A.
Subsequently, in this embodiment, video transfer end B resolves this communication request message, and this communication request message is forwarded to above-mentioned video receiver C.Video receiver C resolves this communication request message equally, and relatively above-mentioned first video capturing rates and second video capturing rates (be equally the resolution of the photographic head of video receiver C) of video receiver C, select a relatively low value as the video capturing rates of video receiver C execution in video communication wherein.
Meanwhile, in this embodiment, the communication response message including above-mentioned second video capturing rates is returned to video originating end A by above-mentioned video transfer end B by above-mentioned video receiver C.The communicate parsing of response message and the comparison of video capturing rates is performed equally at video originating end A, and the video capturing rates that video originating end A performs in selecting a relatively low value as video communication between the first video capturing rates and the second video capturing rates.
Having performed said process, the video capturing rates between video originating end A and video receiver C just adjusts unified, then video originating end A and video acquisition end C can be adjusted unified video capturing rates according to this and carry out video calling.Video calling between video originating end A and video acquisition end C needs not move through the forwarding of video transfer end B, and RTP (RealTransmissionProtocol, RTP) can be used directly to carry out the transmission of Various types of data in data communication.
In the preferred embodiment of the present invention, the call request message that above-mentioned video originating end A sends can be the message being made up of SDP (SessionDescriptionProtocol, Session Description Protocol) agreement.In a preferred embodiment of the present invention, above-mentioned call request message can be:
V=0
O=
C=INIP4100.100.52.233
T=00
A=tcap:1RTP/AVPF
M=audio49342RTP/AVP80101
C=INIP4100.100.52.233
A=ptime:20
…
M=video33082RTP/AVP10410034103
C=INIP4100.100.52.233
A=...
…
M=camera640480
Above-mentioned call request message is the information that with the addition of the first video capturing rates in traditional call request message.Wherein " m=audio49342RTP/AVP80101 " and " m=video33082RTP/AVP10410034103 " is traditional voice and video information, and the information that " m=camera640480 " is the first newly added video capturing rates, this information is 640*480 for representing the resolution of the photographic head of video originating end A.
Similarly, in the preferred embodiment of the present invention, the call response message page that above-mentioned video receiver C sends can be the message being made up of SDP (SessionDescriptionProtocol, Session Description Protocol) agreement.In a preferred embodiment of the present invention, above-mentioned call response message can be:
V=0
O=INIP4100.112.54.243
S=-
C=INIP4100.112.54.243
T=00
A=tcap:1RTP/AVPF
M=audio53214RTP/AVP01018
C=INIP4100.112.54.243
A=...
…
M=video31245RTP/AVP10434100
C=INIP4100.112.54.243
A=...
…
M=camera1280720
Above-mentioned call response message is the information that with the addition of the second video capturing rates in traditional call request message.Wherein " m=audio53214RTP/AVP01018 " and " m=video31245RTP/AVP10434100 " is traditional voice and video information, and the information that " m=camera1280720 " is the first newly added video capturing rates, this information is 1280*720 for representing the resolution of the photographic head of video receiver C.
Therefore, above-mentioned video receiver C, after receiving and parsing through call request message, understands the video capturing rates selecting video capturing rates be used as this video calling by 640*480 according to corresponding comparative result.Similarly, above-mentioned video sending end A, after receiving and parsing through call response message, also can select the video capturing rates that 640*480 is used as this video calling.In other words, the video capturing rates selected by video originating end A and video receiver C is unified.
In the preferred embodiment of the present invention, above-mentioned video transfer end is service end based on the work of SIP (SessionInitiationProtocol, session initiation protocol) agreement, i.e. SIPServer.
In the preferred embodiment of the present invention, in above-mentioned steps S2, after above-mentioned video transfer end B receives call request message, return a call to video originating end A and attempt message；
The most above-mentioned call is attempted message and is similarly the message being made up of SDP agreement.
In the preferred embodiment of the present invention, it is divided into different multiple value grades by descending for the possible value of video capturing rates；
During video calling, video originating end and video receiver are all as video calling end；
During video calling, if a video calling end detects that video transmission quality declines, then detect that video transmission quality declines video calling end and obtains an amended video capturing rates according to current video capturing rates；
Subsequently, using amended video capturing rates as the first video capturing rates, using current video capturing rates as the second video capturing rates, to detect that video calling end that video transmission quality declines is as video originating end, and using another video calling end as video receiver, re-execute step S1 to step S5；
The value grade of amended video capturing rates is less than the value grade of current video capturing rates.
Specifically, in the preferred embodiment of the present invention, during video calling, it is understood that there may be video originating end/video receiver finds own net Quality Down, thus causes the Quality Down of transmission of video, video starts card.In this case, a kind of is to reduce the video capturing rates in video transmitting procedure than way conveniently.Before performing this way, first the possible value of video capturing rates can be divided into multiple different value grade.Owing to the possible value of video capturing rates is discrete, the most the above 1280*720 and 640*480, therefore should only have the possible value of a video capturing rates in each value grade.
Then in the preferred embodiment of the present invention, during video calling, using above-mentioned video originating end A and video receiver C all as video calling end, and the video calling end at two ends the most persistently detects whether video transmission quality during video calling declines.The method that detection video transmission quality declines can have multiple, such as, detect the frame per second of transmission of video, or detection network quality and network transmission signal etc., do not repeat them here.
Subsequently, in the preferred embodiment of the present invention, if detecting that video transmission quality declines at side's video calling end, then this detects that side's video calling end of Quality Down obtains an amended video capturing rates according to current video capturing rates.Concrete acquisition principle is: video calling end declines value grade according to current video capturing rates, to obtain amended video capturing rates.The value grade of the most amended video capturing rates is less than the value grade of current video capturing rates.
Further, in one preferred embodiment of the present invention, the value grade of above-mentioned amended video capturing rates can the ratio low one-level of value grade of current video capturing rates, i.e. video calling end reduces one-level value grade, to obtain amended video capturing rates on the basis of current video capturing rates.Or, in another preferred embodiment of the present invention, the value grade of above-mentioned amended video capturing rates can be than the value grade low N level (N is default natural number) of current video capturing rates.
Subsequently, in the preferred embodiment of the present invention, detect that video calling end that video quality declines is as video originating end using above-mentioned, using another video calling end as video receiver, and using above-mentioned amended video capturing rates as the first video capturing rates, and using above-mentioned current video capturing rates as the second video capturing rates, re-execute above-mentioned steps S1-S5, to redefine the video capturing rates of current video call institute foundation.
Specifically, in the preferred embodiment of the present invention, during video calling, above-mentioned two video calling end is all likely to be video originating end/video receiver.If a video calling end detects that video quality declines, then this video calling end is as video originating end, opposite end video calling end is as video receiver, video originating end using amended video capturing rates as the first video capturing rates, and this first video capturing rates is included in call request message, to be forwarded to video receiver by video transfer end.Subsequently video receiver using current video capturing rates as the second video capturing rates, relatively two video capturing rates are also adjusted, the call response message including the second video capturing rates is forwarded to video originating end by video transfer end, to complete above-mentioned steps S1-S5 simultaneously.After said process completes, the video capturing rates between two video calling ends have passed through unified adjustment, meets current network condition, therefore can support that user is smooth and easy and carry out video calling.
In one preferred embodiment of the present invention, the video calling being illustrated in figure 3 between video originating end A and video receiver C sets up the time diagram of process, specifically includes:
First video originating end A sends a call request message (invite message) to video transfer end C, and this message includes above-mentioned first video capturing rates；
Return a call with rear video transfer end C mono-aspect to video originating end A and attempt message (100TRYING), on the one hand resolve this call request message and forward it to video receiver C；
Video receiver C receives this call request message and resolves, relatively and select a video capturing rates as in video call process video receiver C use video capturing rates.Video receiver C returns call response message (200OK) to video transfer end B simultaneously, and this call response message includes above-mentioned second video capturing rates.
Video transfer end B resolves above-mentioned call response message and forwards it to above-mentioned video originating end A.Video originating end A resolves according to this call response message and compares, using the video capturing rates (identical with what video receiver C selected) selecting a video capturing rates to use in video calling as video originating end.Video originating end A returns call confirmation message (ACK) by video transfer end B to video receiver C simultaneously.Final video originating end A and video receiver C starts direct video calling by Real-time Transport Protocol.
In the preferred embodiment of the present invention, also provide for a kind of video calling end, wherein use the above video call method.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection domain are limited; to those skilled in the art; the equivalent done by all utilization description of the invention and diagramatic content and the scheme obtained by obvious change should be can appreciate that, all should be included in protection scope of the present invention.
Claims (7)
1. a video call method, it is characterised in that including:
Step S1, uses a video originating end to send a call request message to a video transfer end, carries the first video capturing rates being associated with described video originating end in described call request message；
Step S2, described video transfer end resolves described call request message, and described call request message is forwarded to video receiver；
Step S3, described video receiver resolves described call request message, and returns a call response message to described video transfer end, carries the second video capturing rates being associated with described second videoconference client in described call response message；
Step S4, described call response message is forwarded to described video originating end by described video transfer end；
Step S5, described video originating end resolves described call response message, and sends a call confirmation message by described video transfer end to described second videoconference client, carries out video calling subsequently；
In described step S3, described video receiver resolves described call request message, and using one relatively low in described first video capturing rates and described second video capturing rates as the video capturing rates consulting in described video calling to perform, and
In described step S4, described video originating end resolves described call response message, and using one relatively low in described first video capturing rates and described second video capturing rates as the video capturing rates consulting in described video calling to perform.
2. video call method as claimed in claim 1, it is characterised in that described video transfer end is the service end of dialogue-based initiation protocol work.
3. video call method as claimed in claim 1, it is characterised in that described call request message and described call response message are all for the message being made up of Session Description Protocol.
4. video call method as claimed in claim 1, it is characterised in that in described step S2, after described video transfer termination receives described call request message, returns a call to described video originating end and attempts message；
It is the message being made up of Session Description Protocol that message is attempted in described call.
5. video call method as claimed in claim 1, it is characterised in that in described step S5, carry out described video calling between described video originating end and described video receiver, and use RTP to carry out the transmission of video data.
6. video call method as claimed in claim 1, it is characterised in that be divided into different multiple value grades by descending for the possible value of video capturing rates；
During described video calling, described video originating end and described video receiver are all as video calling end；
During described video calling, if a video calling end detects that video transmission quality declines, then detect that video transmission quality declines described video calling end and obtains an amended video capturing rates according to current video capturing rates；
Subsequently, using described amended video capturing rates as described first video capturing rates, using described current video capturing rates as described second video capturing rates, to detect that described video calling end that video transmission quality declines is as described video originating end, and using another described video calling end as described video receiver, re-execute described step S1 to described step S5；
The described value grade of described amended video capturing rates is less than the described value grade of described current video capturing rates.
7. a video calling end, it is characterised in that use the video call method as described in claim 1-6.
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| CN201610277855.8A CN105828016A (en) | 2016-04-28 | 2016-04-28 | Video conversation method and video conversation terminal |
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| CN201610277855.8A CN105828016A (en) | 2016-04-28 | 2016-04-28 | Video conversation method and video conversation terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110697517A (en) * | 2019-09-25 | 2020-01-17 | 恒大智慧科技有限公司 | Elevator control method, system and storage medium based on cell |
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