CN101621681B - Method and equipment for adjusting video communication quality - Google Patents
Method and equipment for adjusting video communication quality Download PDFInfo
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Abstract
The invention discloses a method and equipment for adjusting video communication quality, belonging to the communication field. The method comprises the following steps: confirming multidimensional levels of network conditions according to at least two influence factors of the network conditions; confirming the multidimensional levels of the video communication quality according to at least two adjustable factors of the video communication quality; establishing a corresponding relation between the multidimensional levels of the network conditions and the multidimensional levels of the communication quality; and adjusting the video communication quality according to the multidimensional levels of the present network condition and the corresponding relation. The equipment comprises a network condition confirming module, a video communication quality confirming module, a corresponding relation establishing module and a communication quality adjusting module. The invention adjusts a plurality of adjustable factors influencing the video communication quality according to the corresponding relation between the multidimensional levels of the network conditions and the multidimensional levels of the communication quality and avoids the limitation that only one adjustable factor is adjusted so that the communication quality is better suitable for the network conditions and improves the user experience.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method and apparatus of regulating video communication quality.
Background technology
Along with development of Communication Technique, the application of video communication in the Internet is increasingly extensive.But because factors such as the network bandwidth, transmission quality cause network condition unstable.Thereby existing transmission network is difficult to ensure video communication, particularly real-time is required the communication quality than higher video communication.Wherein, packet loss is one of bottleneck that influences video communication quality.
Prior art often adopts end-to-end quality of service dynamic monitoring and feedback mechanism, reaches the purpose of improving communication quality.Concrete grammar is following:
The purpose gateway carries out the packet loss monitoring, and to source gateway feedback monitoring result.Source gateway is regulated the quality of video coding according to the packet loss situation of feedback.When packet loss rises to certain threshold value, adopt the relatively poor low bit-rate video encryption algorithm of video encoding quality, corresponding, when packet loss reduces to certain threshold value, just adopt high-quality high bit-rate video encryption algorithm, to reach the purpose of improving communication quality.
Comprehensively above-mentioned, there is following problem at least in prior art:
Regulate video encoding quality to improve the method for video communication quality through packet loss, under the application scenarios that video communication quality is had higher requirements, certain limitation is arranged.For example: when network condition was poor especially, packet loss was very big, even reduce video encoding quality, possibly still can't satisfy the requirement of video communication quality.
Summary of the invention
In order to make video communication quality better adapt to network condition, the embodiment of the invention provides a kind of method and apparatus of regulating video communication quality.Said technical scheme is following:
A kind of method of regulating video communication quality, said method comprises:
At least two kinds of influencing factors according to network condition; Confirm the multidimensional rank of said network condition; And when the feedback cycle of the influencing factor of network condition not simultaneously, with the feedback level of the current feedback cycle of the feedback level of a current not last feedback cycle of the influencing factor of feedback and the current influencing factor of having fed back multidimensional rank as current network conditions;
According at least two kinds of adjustable factors of video communication quality, confirm the multidimensional rank of said video communication quality;
Set up the multidimensional rank of said network condition and other corresponding relation of multidimensional level of said video communication quality;
According to the multidimensional rank and the said corresponding relation of current network conditions, regulate video communication quality.
Wherein, said at least two kinds of influencing factors according to network condition, confirm that the multidimensional rank of said network condition comprises:
Every kind of influencing factor in said at least two kinds of influencing factors is divided into different ranks;
Every kind of influencing factor from said at least two kinds of influencing factors is selected a rank, with the rank of said at least two kinds of influencing factors of the selecting multidimensional rank as said network condition.
Wherein, said at least two kinds of adjustable factors according to video communication quality, confirm that the multidimensional rank of said video communication quality comprises:
Every kind of adjustable factors in said at least two kinds of adjustable factors is divided into different ranks;
Every kind of adjustable factors from said at least two kinds of adjustable factors is selected a rank, with the rank of said at least two kinds of adjustable factors of the selecting multidimensional rank as said video communication quality.
Wherein, said multidimensional rank and said corresponding relation according to current network conditions, regulate video communication quality and comprise:
According to the multidimensional rank and the said corresponding relation of said current network conditions, confirm the multidimensional rank of current video communication quality;
According to the multidimensional rank of said current video communication quality, confirm the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors;
According to the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors, regulate video communication quality.
Wherein, said at least two kinds of influencing factors comprise: bandwidth information and packet loss;
Said at least two kinds of adjustable factors comprise: video encoding quality and video are redundant.
A kind of equipment of regulating video communication quality, said equipment comprises:
The network condition determination module; Be used at least two kinds of influencing factors according to network condition; Confirm the multidimensional rank of said network condition; And when the feedback cycle of the influencing factor of network condition not simultaneously, with the feedback level of the current feedback cycle of the feedback level of a current not last feedback cycle of the influencing factor of feedback and the current influencing factor of having fed back multidimensional rank as current network conditions;
The video communication quality determination module is used at least two kinds of adjustable factors according to video communication quality, confirms the multidimensional rank of said video communication quality;
Corresponding relation building module is used to set up the multidimensional rank of the definite network condition of said network condition determination module and other corresponding relation of multidimensional level of the video communication quality that said video communication quality determination module is confirmed;
The communication quality adjustment module is used for regulating video communication quality according to the multidimensional rank of current network conditions and the corresponding relation of said corresponding relation building module foundation.
Wherein, Said network condition determination module; Specifically be used for every kind of influencing factor of said at least two kinds of influencing factors is divided into different ranks; Every kind of influencing factor from said at least two kinds of influencing factors is selected a rank, with the rank of said at least two kinds of influencing factors of the selecting multidimensional rank as said network condition.
Wherein, Said video communication quality determination module; Specifically be used for every kind of adjustable factors of said at least two kinds of adjustable factors is divided into different ranks; Every kind of adjustable factors from said at least two kinds of adjustable factors is selected a rank, with the rank of said at least two kinds of adjustable factors of the selecting multidimensional rank as said video communication quality.
Wherein, Said communication quality adjustment module specifically is used for multidimensional rank and said corresponding relation according to said current network conditions, confirms the multidimensional rank of current video communication quality; Multidimensional rank according to said current video communication quality; Confirm the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors,, regulate video communication quality according to the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors.
Wherein, at least two kinds of influencing factors in the said network condition determination module comprise: bandwidth information and packet loss;
At least two kinds of adjustable factors in the said video communication quality determination module comprise: video encoding quality and video are redundant.
The technical scheme that the embodiment of the invention provides; According to the multidimensional rank of network condition and other corresponding relation of multidimensional level of video communication quality; Regulate the multiple adjustable factors that influences video communication quality; Avoid the limitation of only a kind of adjustable factors being regulated, made video communication quality can better adapt to network condition, improved user experience.
Description of drawings
Fig. 1 is the method flow diagram of the adjusting video communication quality that provides in the embodiment of the invention 1;
Fig. 2 is another method flow diagram of the adjusting video communication quality that provides in the embodiment of the invention 1;
Fig. 3 is the device structure sketch map of the adjusting video communication quality that provides in the embodiment of the invention 2.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Embodiment 1
The embodiment of the invention provides a kind of method of regulating video communication quality, and referring to Fig. 1, this method comprises:
101:, confirm the multidimensional rank of this network condition according at least two kinds of influencing factors of network condition;
102:, confirm the multidimensional rank of this video communication quality according at least two kinds of adjustable factors of video communication quality;
103: set up the multidimensional rank of this network condition and other corresponding relation of multidimensional level of this video communication quality;
104:, regulate video communication quality according to multidimensional rank and this corresponding relation of current network conditions.
Wherein, step 101 specifically comprises:
Every kind of influencing factor in these at least two kinds of influencing factors is divided into different ranks; Every kind of influencing factor from these at least two kinds of influencing factors is selected a rank, with the rank of these at least two kinds of influencing factors of the selecting multidimensional rank as this network condition.
Wherein, step 102 specifically comprises:
Every kind of adjustable factors in these at least two kinds of adjustable factors is divided into different ranks; Every kind of adjustable factors from these at least two kinds of adjustable factors is selected a rank, with the rank of these at least two kinds of adjustable factors of the selecting multidimensional rank as this video communication quality.
Wherein, step 104 specifically comprises:
Multidimensional rank and this corresponding relation according to this current network condition; Confirm the multidimensional rank of current video communication quality; Multidimensional rank according to video communication quality before deserving; Confirm the current rank of every kind of adjustable factors in these at least two kinds of adjustable factors,, regulate video communication quality according to the current rank of every kind of adjustable factors in these at least two kinds of adjustable factors.
Wherein, these at least two kinds of influencing factors specifically can be: information such as bandwidth information, packet loss, transmission delay, these at least two kinds of adjustable factors specifically can be: information such as video encoding quality and video redundancy.The present invention does not limit the particular content of influencing factor, adjustable factors.
The embodiment of the invention is according to the multidimensional rank of network condition and other corresponding relation of multidimensional level of video communication quality; Regulate the multiple adjustable factors that influences video communication quality; Avoided the limitation of only a kind of adjustable factors being regulated; Make video communication quality better adapt to network condition, improve user experience.
Below in conjunction with an instantiation,, the process of regulating video communication quality is described referring to Fig. 2.With the two-dimensional adjustable factor of video communication quality and the two-dimentional influencing factor of network condition is example, and the adjustable factors of supposing video communication quality is that video encoding quality and video are redundant, and the influencing factor of network condition is bandwidth and packet loss.The detailed process of regulating video communication quality according to network condition is following:
201: video encoding quality is carried out classification according to code check.
Concrete, code check is high more, and the rank of video encoding quality is high more.Here video encoding quality is divided into high, normal, basic three grades.Present embodiment does not limit the division rank of video encoding quality, for example can be divided into two-stage, three grades or other rank.
202:, the video redundancy is carried out classification according to the protection intensity of FEC (Forward Error Correction, forward error correction).
Wherein, protection intensity is meant that the redundancy packet of interpolation can resist the ability of data-bag lost.Here the video redundancy is divided into high, normal, basic three grades.Wherein, seniorly be a plurality of redundancy packet and can resist a plurality of data-bag losts that middle rank is data packet loss of a redundancy packet antagonism, rudimentary is not add redundancy packet.Present embodiment does not limit the redundant division rank of video.
203: from the redundant rank of the rank of video encoding quality and video, respectively select a rank, and these two kinds of influencing factors and corresponding grade thereof are combined, as the multidimensional rank of video communication quality.
Concrete, video encoding quality has high, normal, basic three ranks, and the video redundancy has high, normal, basic three ranks, then the multidimensional rank of frequency communication quality; Be designated as the redundant rank of rank+video of video encoding quality,, have 9 kinds of multidimensional ranks, be respectively: height+height according to the mode of permutation and combination; High+in, high+low, in+height, in+in; In+low, low+height, low+in, low+low.
204: upload the data volume of sending according to circuit in the unit interval, bandwidth is carried out classification.
Concrete, it is big more that interior circuit of unit interval is uploaded the data volume of sending, and the rank of bandwidth is high more.Here bandwidth is divided into high, normal, basic three ranks.For example, be low bandwidth below the 10M, between the 10M to 100M middle bandwidth, 100M is above to be high bandwidth.Present embodiment does not limit the division rank of bandwidth.
205: account for the ratio of sending data packet number according to lost data packets quantity, packet loss is carried out classification.
Concrete, it is high more that lost data packets quantity accounts for the ratio of sending data packet number, and packet loss is big more.Here packet loss is divided into high, normal, basic three grades.For example, being lower than 2% and being low packet loss ratio, is middle packet loss between 2% to 5%, is high packet loss more than 5%.Present embodiment does not limit the division rank of packet loss.
206: from the rank of the rank of bandwidth and packet loss, respectively select a rank, and with this in two adjustable factors and corresponding grade thereof combine, as the multidimensional rank of network condition.
Concrete, bandwidth has high, normal, basic three ranks, and packet loss has high, normal, basic three ranks, then the multidimensional rank of network condition; Be designated as the rank of the rank+packet loss of bandwidth,, have 9 kinds of multidimensional ranks, be respectively: height+height according to the mode of permutation and combination; High+in, high+low, in+height, in+in; In+low, low+height, low+in, low+low.
207: set up the multidimensional rank of network condition and other corresponding relation of multidimensional level of video communication quality.
Concrete, this corresponding relation adopts the form of correspondence table, and is as shown in table 1:
Table 1
| High packet loss | Middle packet loss | Low packet loss ratio | |
| High bandwidth | In+height | High+in | High+low |
| Middle bandwidth | In+height | In+in | In+low |
| Low bandwidth | Low+in | Low+in | Low+low |
Wherein, the rank of the parametric representation video encoding quality that "+" is preceding, the rank that the parametric representation video after "+" is redundant.For example; " in+height " expression of the second row secondary series in the table 1: when the two-dimentional rank of network condition is high bandwidth and high packet loss; The two-dimentional rank of video communication quality is " middle video encoding quality+high video is redundant "; Other corresponding relation of table 1 is identical with " in+height ", enumerates no longer one by one here.
Concrete, above-mentioned corresponding relation can be rule of thumb or actual measurement result set up and revise.
208:, confirm the two-dimentional rank of current video communication quality according to the two-dimentional rank and the above-mentioned corresponding relation of the current network conditions of network-feedback.
For example: the two-dimentional rank of current network conditions is low bandwidth and high packet loss, and then according to above-mentioned corresponding relation, the two-dimentional rank of current video communication quality is that low video encoding quality and middle video are redundant.
In addition, the feedback cycle of the influencing factor of network condition can be different.For example, the feedback cycle of influencing factor 1 is T, and the feedback cycle of influencing factor 2 is 2T.At 3T constantly, influencing factor 1 has been fed back, and influencing factor feedback not, at this moment, can be with influencing factor 1 in 3T feedback level constantly and influencing factor 2 in the two-dimentional rank of 2T feedback level constantly as 3T moment network condition.
209:, can confirm the rank and the redundant rank of current video of current video coding quality according to the two-dimentional rank of current video communication quality.
210:, regulate video communication quality according to the rank and the redundant rank of current video of current video coding quality.
For example: the rank of current video coding quality is low, and the redundant rank of video then adopts low level bit-rate that video is encoded in being, adopts the FEC strategy of a data packet loss of a redundancy packet antagonism simultaneously.
The method that present embodiment provides; According to the multidimensional rank of network condition and other corresponding relation of multidimensional level of video communication quality; Regulate the multiple adjustable factors that influences video communication quality; Avoid the limitation of only a kind of adjustable factors being regulated, made video communication quality better adapt to network condition, improved user experience.For example: when network condition was poor especially, packet loss was very big, when suitably reducing video encoding quality, can select the redundant rank of higher video for use, ensured video communication quality.
Embodiment 2
Referring to Fig. 3, present embodiment provides a kind of equipment of regulating video communication quality, comprising:
Network condition determination module 301 is used at least two kinds of influencing factors according to network condition, confirms the multidimensional rank of this network condition;
Video communication quality determination module 302 is used at least two kinds of adjustable factors according to video communication quality, confirms the multidimensional rank of this video communication quality;
Corresponding relation building module 303, other corresponding relation of multidimensional level of the video communication quality that the multidimensional rank that is used to set up the network condition that this network condition determination module 301 confirms and this video communication quality determination module 302 are definite;
Communication quality adjustment module 304 is used for regulating video communication quality according to the multidimensional rank of current network conditions and the corresponding relation of these corresponding relation building module 303 foundation.
Wherein, This network condition determination module 301; Specifically be used for every kind of influencing factor of these at least two kinds of influencing factors is divided into different ranks; Every kind of influencing factor from these at least two kinds of influencing factors is selected a rank, with the rank of these at least two kinds of influencing factors of the selecting multidimensional rank as this network condition.
Wherein, This video communication quality determination module 302; Specifically be used for every kind of adjustable factors of these at least two kinds of adjustable factors is divided into different ranks; Every kind of adjustable factors from these at least two kinds of adjustable factors is selected a rank, with the rank of these at least two kinds of adjustable factors of the selecting multidimensional rank as this video communication quality.
Wherein, This communication quality adjustment module 304 specifically is used for multidimensional rank and this corresponding relation according to this current network condition, confirms the multidimensional rank of current video communication quality; Multidimensional rank according to video communication quality before deserving; Confirm the current rank of every kind of adjustable factors in these at least two kinds of adjustable factors,, regulate video communication quality according to the current rank of every kind of adjustable factors in these at least two kinds of adjustable factors.
Wherein, at least two kinds of influencing factors in this network condition determination module 301 comprise: bandwidth information and packet loss can also comprise propagation delay time etc.; At least two kinds of adjustable factors in this video communication quality determination module 302 comprise: video encoding quality and video are redundant.
The equipment that present embodiment provides belongs to same design with method embodiment, and its concrete implementation procedure sees method embodiment for details, repeats no more at this.
The equipment that present embodiment provides; According to the multidimensional rank of network condition and other corresponding relation of multidimensional level of video communication quality; Regulate the multiple adjustable factors that influences video communication quality; Avoid the limitation of only a kind of adjustable factors being regulated, made video communication quality better adapt to network condition, improved user experience.For example: when network condition was poor especially, packet loss was very big, when suitably reducing video encoding quality, can select the redundant rank of higher video for use, ensured video communication quality.
All or part of content in the technical scheme that above embodiment provides can realize that through software programming its software program is stored in the storage medium that can read, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method of regulating video communication quality is characterized in that, said method comprises:
At least two kinds of influencing factors according to network condition; Confirm the multidimensional rank of said network condition; And when the feedback cycle of the influencing factor of network condition not simultaneously, with the feedback level of the current feedback cycle of the feedback level of a current not last feedback cycle of the influencing factor of feedback and the current influencing factor of having fed back multidimensional rank as current network conditions;
According at least two kinds of adjustable factors of video communication quality, confirm the multidimensional rank of said video communication quality;
Set up the multidimensional rank of said network condition and other corresponding relation of multidimensional level of said video communication quality;
According to the multidimensional rank and the said corresponding relation of current network conditions, regulate video communication quality;
Said at least two kinds of influencing factors according to network condition, confirm that the multidimensional rank of said network condition comprises:
Every kind of influencing factor in said at least two kinds of influencing factors is divided into different ranks;
Every kind of influencing factor from said at least two kinds of influencing factors is selected a rank, with the rank of said at least two kinds of influencing factors of the selecting multidimensional rank as said network condition.
2. the method for claim 1 is characterized in that, said at least two kinds of adjustable factors according to video communication quality confirm that the multidimensional rank of said video communication quality comprises:
Every kind of adjustable factors in said at least two kinds of adjustable factors is divided into different ranks;
Every kind of adjustable factors from said at least two kinds of adjustable factors is selected a rank, with the rank of said at least two kinds of adjustable factors of the selecting multidimensional rank as said video communication quality.
3. the method for claim 1 is characterized in that, said multidimensional rank and said corresponding relation according to current network conditions are regulated video communication quality and comprised:
According to the multidimensional rank and the said corresponding relation of said current network conditions, confirm the multidimensional rank of current video communication quality;
According to the multidimensional rank of said current video communication quality, confirm the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors;
According to the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors, regulate video communication quality.
4. like the described method of the arbitrary claim of claim 1 to 3, it is characterized in that said at least two kinds of influencing factors comprise: bandwidth information and packet loss;
Said at least two kinds of adjustable factors comprise: video encoding quality and video are redundant.
5. an equipment of regulating video communication quality is characterized in that, said equipment comprises:
The network condition determination module; Be used at least two kinds of influencing factors according to network condition; Confirm the multidimensional rank of said network condition; And when the feedback cycle of the influencing factor of network condition not simultaneously, with the feedback level of the current feedback cycle of the feedback level of a current not last feedback cycle of the influencing factor of feedback and the current influencing factor of having fed back multidimensional rank as current network conditions;
The video communication quality determination module is used at least two kinds of adjustable factors according to video communication quality, confirms the multidimensional rank of said video communication quality;
Corresponding relation building module is used to set up the multidimensional rank of the definite network condition of said network condition determination module and other corresponding relation of multidimensional level of the video communication quality that said video communication quality determination module is confirmed;
The communication quality adjustment module is used for regulating video communication quality according to the multidimensional rank of current network conditions and the corresponding relation of said corresponding relation building module foundation;
Said network condition determination module; Specifically be used for every kind of influencing factor of said at least two kinds of influencing factors is divided into different ranks; Every kind of influencing factor from said at least two kinds of influencing factors is selected a rank, with the rank of said at least two kinds of influencing factors of the selecting multidimensional rank as said network condition.
6. equipment as claimed in claim 5; It is characterized in that; Said video communication quality determination module; Specifically be used for every kind of adjustable factors of said at least two kinds of adjustable factors is divided into different ranks, every kind of adjustable factors from said at least two kinds of adjustable factors is selected a rank, with the rank of said at least two kinds of adjustable factors of the selecting multidimensional rank as said video communication quality.
7. equipment as claimed in claim 5 is characterized in that, said communication quality adjustment module; Specifically be used for multidimensional rank and said corresponding relation according to said current network conditions; Confirm the multidimensional rank of current video communication quality,, confirm the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors according to the multidimensional rank of said current video communication quality; According to the current rank of every kind of adjustable factors in said at least two kinds of adjustable factors, regulate video communication quality.
8. like the described equipment of the arbitrary claim of claim 5 to 7, it is characterized in that at least two kinds of influencing factors in the said network condition determination module comprise: bandwidth information and packet loss;
At least two kinds of adjustable factors in the said video communication quality determination module comprise: video encoding quality and video are redundant.
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| US8483044B2 (en) * | 2011-06-01 | 2013-07-09 | Radvision Ltd. | Systems, methods, and media for identifying degraded video call links |
| CN102300076B (en) * | 2011-08-26 | 2017-12-05 | 中兴通讯股份有限公司 | The method and video conference terminal of video conference terminal dynamic Discarded Packets compensation |
| CN104185285A (en) * | 2013-05-28 | 2014-12-03 | 华为技术有限公司 | Media data transmission method, device and system |
| CN104349158A (en) * | 2013-07-26 | 2015-02-11 | 腾讯科技（深圳）有限公司 | Communication video quality adjusting method and relevant equipment and system |
| CN105812837A (en) * | 2014-12-30 | 2016-07-27 | 华为技术有限公司 | Image processing method and image processing device |
| CN110876066A (en) * | 2018-09-03 | 2020-03-10 | 中国移动通信有限公司研究院 | Adaptive forward error correction method, apparatus, medium and device |
| CN112468759A (en) | 2019-09-09 | 2021-03-09 | 苹果公司 | Dynamic redundancy |
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