CN104639953B - Audio frequency and video distribute the code check adaptive approach and audio frequency and video discharge device of link - Google Patents
Audio frequency and video distribute the code check adaptive approach and audio frequency and video discharge device of link Download PDFInfo
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- CN104639953B CN104639953B CN201310573425.7A CN201310573425A CN104639953B CN 104639953 B CN104639953 B CN 104639953B CN 201310573425 A CN201310573425 A CN 201310573425A CN 104639953 B CN104639953 B CN 104639953B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/23805—Controlling the feeding rate to the network, e.g. by controlling the video pump
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention provides the code check adaptive approach and audio frequency and video discharge device that a kind of audio frequency and video distribute link.If the load parameter of equipment is more than default overload threshold, the target bit rate of each distribution link is used as using the minimum value expected in code check of each distribution link；If the load parameter of equipment is less than or equal to overload threshold and more than default Secure Threshold, code check classification is carried out according to the expectation code check of each distribution link, the target bit rate of each distribution link is determined；If the load parameter of equipment is less than or equal to Secure Threshold and more than default light thresholding, code check merging is carried out according to the expectation code check of each distribution link, the target bit rate of each distribution link is determined；If the load parameter of equipment is less than or equal to light thresholding, according to the maximum distribution number of links of equipment and the total number of distribution link, the target bit rate of each distribution link is determined.The method and apparatus provided using the present invention, it is possible to increase the reliability of audio frequency and video distribution.
Description
Technical field
The present invention relates to the code check adaptive approach and audio frequency and video of the communication technology, more particularly to a kind of audio frequency and video distribution link
Discharge device.
Background technology
With the development of digital audio/video technology and communication network technology, it is necessary to pass through clothes in some video scenes
The business audio frequency and video discharge device such as device or dispatcher, same audio, video data is set by wireless network transmissions to different receptions
It is standby.
At present, in audio frequency and video distribution network, audio frequency and video discharge device directly forwards original audio, video data as former state
Each receiving device is given, is influenceed by audio frequency and video distribution network performance and equipment performance, above-mentioned existing audio frequency and video distributor
The poor reliability of method.
The content of the invention
The first aspect of the invention is to provide the code check adaptive approach that a kind of audio frequency and video distribute link, existing to solve
There is the defect in technology, improve the reliability of audio frequency and video distribution.
Another aspect of the present invention is to provide a kind of audio frequency and video discharge device, to solve defect of the prior art,
Improve the reliability of audio frequency and video distribution.
The first aspect of the invention is to provide the code check adaptive approach that a kind of audio frequency and video distribute link, including：
Obtain the load parameter of equipment and the expectation code check of each distribution link；
If the load parameter of the equipment is more than default overload threshold, with the expectation code check of each distribution link
In minimum value be used as it is each distribution link target bit rate；
If the load parameter of the equipment is less than or equal to the overload threshold and more than default Secure Threshold, basis
The expectation code check of each distribution link carries out code check classification, determines the target bit rate of each distribution link；
If the load parameter of the equipment is less than or equal to the Secure Threshold and more than default light thresholding, according to institute
The expectation code check for stating each distribution link carries out code check merging, determines the target bit rate of each distribution link；
If the load parameter of the equipment is less than or equal to the light thresholding, according to the maximum distribution link of the equipment
The total number of number and the distribution link, determines the target bit rate of each distribution link.
Method as described above, wherein, the expectation code check of each distribution link carries out code check classification described in the basis, really
The target bit rate of each fixed distribution link includes：
In the range of maximum to the minimum value of the expectation code check of each distribution link, the code of predetermined number is divided
Rate grade, for each distribution link, with the maximum of the code check grade of the expectation code check less than or equal to the distribution link
As the target bit rate of the distribution link, wherein, the total number of the code check grade is less than or equal to the maximum of the equipment
Distribute number of links.
Method as described above, wherein, the expectation code check of each distribution link carries out code check merging described in the basis, really
The target bit rate of each fixed distribution link includes：
The expectation code check of each distribution link is ranked up according to order from large to small, from the phase of sequence second
Hope code check start, the current adjacent expectation code check for it is expected that code check is minimum with difference is merged into an expectation code check, with described
The minimum value in the code check adjacent expectation code check minimum with the difference is currently expected as the expectation code check after merging, until
It is expected that the total number of code check is equal to the maximum distribution number of links of the equipment, do not merge with the expectation code check after merging and behaviour
Work expect code check as it is described each distribution link target bit rate；
Or, the average value of the maxima and minima of the expectation code check of each distribution link is calculated, it is used as each point
Send out the target bit rate of link；
Or, interpolation calculation or weighted calculation are carried out to the expectation code check of each distribution link, obtain predetermined number
Candidate's code check, for each distribution link, with the maximum of candidate's code check of the expectation code check less than or equal to the distribution link
It is worth the target bit rate as the distribution link.
Method as described above, wherein, the maximum distribution number of links according to the equipment and the distribution link
Total number, determining the target bit rate of each distribution link includes：
If it is described distribution link total number be less than or equal to the equipment maximum distribution number of links, with it is described each
The expectation code check of distribution link is used as target bit rate；
If the total number of the distribution link is more than the maximum distribution number of links of the equipment, the distribution link is calculated
The difference of total number and the maximum distribution number of links of the equipment, as capability defect number, and calculates each described distribution chain
The difference for expecting code check and audio frequency and video initial data code check on road, as distribution link quality difference value, to the distribution link matter
Measure difference to sort according to order from big to small, select the preceding distribution link matter with capability defect number same number that sorts
Difference is measured, it is of poor quality with the corresponding distribution link of each distribution link quality difference value selected and the distribution do not selected link
The average expectation code check of the corresponding distribution link of value expects that the minimum value of code check is of poor quality as the distribution link selected
The target bit rate of the corresponding distribution link of value and the corresponding distribution link of distribution link quality difference value do not selected, and with each
The expectation code check of the individual distribution link not being merged is as target bit rate.
Another aspect of the present invention is to provide a kind of audio frequency and video discharge device, including：
Acquiring unit, for obtaining the load parameter of equipment and the expectation code check of each distribution link；
Control unit, in the case of being more than default overload threshold in the load parameter of the equipment, with described each
The minimum value expected in code check of individual distribution link is used as each target bit rate for distributing link；In the load parameter of the equipment
Less than or equal to the overload threshold and more than in the case of default Secure Threshold, according to the expectation of each distribution link
Code check carries out code check classification, determines the target bit rate of each distribution link；It is less than or equal to institute in the load parameter of the equipment
State Secure Threshold and more than in the case of default light thresholding, code check conjunction is carried out according to the expectation code check of each distribution link
And, determine the target bit rate of each distribution link；It is less than or equal to the situation of the light thresholding in the load parameter of the equipment
Under, according to the maximum distribution number of links of the equipment and the total number of the distribution link, determine the target of each distribution link
Code check.
Equipment as described above, wherein, described control unit is specifically for being less than or waiting in the load parameter of the equipment
In the overload threshold and more than in the case of default Secure Threshold, in the maximum of the expectation code check of each distribution link
In the range of value to minimum value, the code check grade of predetermined number is divided, for each distribution link, with less than or equal to described point
The maximum of code check grade of the expectation code check of link is sent out as the target bit rate for distributing link, wherein, described code check etc.
The total number of level is less than or equal to the maximum distribution number of links of the equipment.
Equipment as described above, wherein, described control unit is specifically for being less than or waiting in the load parameter of the equipment
In the Secure Threshold and more than in the case of default light thresholding, according to order from large to small to each described distribution link
Expectation code check be ranked up, since the expectation code check of sequence second, current will expect minimum adjacent of code check and difference
It is expected that code check merges into an expectation code check, with the current adjacent expectation code check for it is expected that code check is minimum with the difference
Minimum value as the expectation code check after merging, until it is expected that the total number of code check is equal to the maximum distribution link of the equipment
Number, using the expectations code check after merging and do not merge operation expectation code check as it is described each distribute link object code
Rate；
Or, described control unit specifically for the equipment load parameter be less than or equal to the Secure Threshold and
In the case of default light thresholding, the maxima and minima of the expectation code check of each distribution link is averaged described in calculating
Value, is used as the target bit rate of each distribution link；
Or, described control unit specifically for the equipment load parameter be less than or equal to the Secure Threshold and
In the case of more than default light thresholding, interpolation calculation or weighted calculation are carried out to the expectation code check of each distribution link,
Candidate's code check of predetermined number is obtained, for each distribution link, with the expectation code check less than or equal to the distribution link
The maximum of candidate's code check is used as the target bit rate for distributing link.
Equipment as described above, wherein, described control unit is specifically for being less than or waiting in the load parameter of the equipment
In the case of the light thresholding, it is less than or equal to the maximum distribution number of links of the equipment in the total number of the distribution link
When, using the expectation code check of each distribution link as target bit rate, it is more than described set in the total number of the distribution link
During standby maximum distribution number of links, the difference of the total number and the maximum distribution number of links of the equipment of the distribution link is calculated
Value, as capability defect number, and calculates the difference for expecting code check and audio frequency and video initial data code check of each distribution link
Value, as distribution link quality difference value, sorts according to order from big to small to the distribution link quality difference value, selects sequence
The preceding distribution link quality difference value with capability defect number same number, with each distribution link quality difference value pair selected
The average expectation code check of the distribution link answered distribution link corresponding with the distribution link quality difference value that one is not selected or expectation
The minimum value of code check is used as the corresponding distribution link of the distribution link quality difference value selected and the distribution chain do not selected
The target bit rate of the corresponding distribution link of road quality difference value, and mesh is used as using the expectation code check of each distribution link not being merged
Coding rate.
From foregoing invention content, during audio frequency and video distribution is carried out, by setting multiple thresholdings, according to equipment
Load parameter where different thresholdings it is interval, the expectation code check for distributing link is handled using different strategies, really
Surely the target bit rate of link is distributed, so that when it is determined that distributing the target bit rate of link, it is contemplated that machine utilization and distribution chain
The situation on road, therefore, it is possible to improve the reliability of audio frequency and video distribution.
Brief description of the drawings
Fig. 1 distributes the flow chart of the code check adaptive approach of link for the audio frequency and video of the embodiment of the present invention one；
Fig. 2 distributes the flow chart of the code check adaptive approach of link for the audio frequency and video of the embodiment of the present invention two；
Fig. 3 is the structural representation of the audio frequency and video discharge device of the embodiment of the present invention three.
Embodiment
Fig. 1 distributes the flow chart of the code check adaptive approach of link for the audio frequency and video of the embodiment of the present invention one.Such as Fig. 1 institutes
Show, this method includes procedure below.
Step 101：Obtain the load parameter of equipment and the expectation code check of each distribution link.
Step 102：If the load parameter of the equipment is more than default overload threshold, with each distribution link
Expect the minimum value in code check as the target bit rate of each distribution link.
Step 103：If the load parameter of the equipment is less than or equal to the overload threshold and more than default safety door
Limit, then carry out code check classification according to the expectation code check of each distribution link, determine the target bit rate of each distribution link.
Step 104：If the load parameter of the equipment is less than or equal to the Secure Threshold and more than default light thresholding,
Code check merging is then carried out according to the expectation code check of each distribution link, the target bit rate of each distribution link is determined.
Step 105：If the load parameter of the equipment is less than or equal to the light thresholding, according to the maximum of the equipment
Distribute number of links and the total number of the distribution link, determine the target bit rate of each distribution link.
In the embodiment of the present invention one, during audio frequency and video distribution is carried out, by setting multiple thresholdings, according to equipment
Load parameter where different thresholdings it is interval, the expectation code check for distributing link is handled using different strategies, really
Surely the target bit rate of link is distributed, so that when it is determined that distributing the target bit rate of link, it is contemplated that machine utilization and distribution chain
The situation on road, therefore, it is possible to improve the reliability of audio frequency and video distribution.
Fig. 2 distributes the flow chart of the code check adaptive approach of link for the audio frequency and video of the embodiment of the present invention two.Such as Fig. 2 institutes
Show, this method includes procedure below.
Step 201：Overload threshold, Secure Threshold and light thresholding are set on audio frequency and video discharge device.
In this step, overload threshold, Secure Threshold and light thresholding are set on audio frequency and video discharge device.Wherein, overload
The size of thresholding, Secure Threshold and light thresholding is followed successively by：Overload threshold>Secure Threshold>Light thresholding, overload threshold, Secure Threshold
Can flexibly it be set according to practical application scene with the concrete numerical value of light thresholding.The present invention is not limited specific method to set up
System, is configured for example, configuration file can be transferred by audio frequency and video discharge device, it would however also be possible to employ manual type is to audio frequency and video point
Hair equipment is configured.
Step 202：Audio frequency and video discharge device obtains the load parameter of equipment.
In this step, audio frequency and video discharge device obtains the load parameter of the equipment of itself.Wherein, the load parameter of equipment
To characterize the parameter of machine utilization situation, it is for instance possible to use characterizing central processing unit（Central Processing Unit,
Abbreviation CPU）The parameter of load condition or the parameter for characterizing EMS memory occupation situation, but it is not limited to both the above.
Step 203：Audio frequency and video discharge device obtains the expectation code check of each distribution link.
In this step, audio frequency and video discharge device obtains each distribution link by monitoring the performance that each distributes link
Expectation code check.
In the embodiment of the present invention two, audio frequency and video discharge device can also obtain the maximum distribution link of the equipment itself
Number.The maximum distribution number of links of audio frequency and video discharge device represents that the video distribution apparatus can be while the maximum of the encoding and decoding handled
Disposal ability.The method that the embodiment of the present invention obtains the maximum distribution number of links of itself to audio frequency and video discharge device is not limited,
For example, audio frequency and video discharge device can obtain the maximum distribution number of links of itself by reading configuration file, or, it can also lead to
Cross to be monitored the hardware device of itself and obtain the maximum distribution number of links of itself.
Step 204：Audio frequency and video discharge device is carried out to the load parameter of equipment with overload threshold, Secure Threshold and light thresholding
Compare.
In this step, load parameter and overload threshold, Secure Threshold and light thresholding of the audio frequency and video discharge device to equipment
It is compared, determines the load parameter of equipment and the magnitude relationship of overload threshold, Secure Threshold and light thresholding.If equipment is negative
Lotus parameter is more than default overload threshold, performs step 205；If the load parameter of equipment is less than or equal to the overload threshold
And more than default Secure Threshold, perform step 206；If the load parameter of equipment is less than or equal to the Secure Threshold and big
In default light thresholding, step 207 is performed；If the load parameter of equipment is less than or equal to the light thresholding, step is performed
208。
Step 205：Audio frequency and video discharge device is using the minimum value expected in code check of each distribution link as each
Distribute the target bit rate of link.
Step 206：Audio frequency and video discharge device carries out code check classification according to the expectation code check of each distribution link, it is determined that
The target bit rate of each distribution link.
In this step, audio frequency and video discharge device carries out code check classification according to the expectation code check of each distribution link,
The target bit rate of each distribution link is determined, can specifically be adopted with the following method：Audio frequency and video discharge device is in each described distribution
In the range of maximum to the minimum value of the expectation code check of link, the code check grade of predetermined number is divided, for each distribution chain
Road, the target of the distribution link is used as using the maximum of the code check grade of the expectation code check less than or equal to the distribution link
Code check, wherein, the total number of the code check grade is less than or equal to the maximum distribution number of links of the equipment.
Step 207：Audio frequency and video discharge device carries out code check merging according to the expectation code check of each distribution link, it is determined that
The target bit rate of each distribution link.
In this step, audio frequency and video discharge device carries out code check merging according to the expectation code check of each distribution link,
Determine the target bit rate of each distribution link.The embodiment of the present invention is not limited to the specific method that code check merges, any code check
Merging method is applicable.In a kind of specific implementation, it can adopt with the following method：According to order from large to small to institute
The expectation code check for stating each distribution link is ranked up, since the expectation code check of sequence second, will currently expect code check and poor
The minimum adjacent expectation code check of value merges into an expectation code check, with the current phase for it is expected that code check is minimum with the difference
The adjacent minimum value expected in code check is as the expectation code check after merging, until it is expected that the total number of code check is equal to the equipment
Maximum distribution number of links, each described distribution chain is used as using the expectation code check after merging and the expectation code check for not merging operation
The target bit rate on road.Or, in another specific implementation, it can adopt with the following method：Calculate each described distribution chain
The average value of the maxima and minima of the expectation code check on road, is used as the target bit rate of each distribution link.Or, at another
In specific implementation, it can adopt with the following method：Interpolation calculation is carried out to the expectation code check of each distribution link or added
Power is calculated, and obtains candidate's code check of predetermined number, for each distribution link, with the expectation less than or equal to the distribution link
The maximum of candidate's code check of code check is used as the target bit rate for distributing link.
Step 208：Audio frequency and video discharge device is total according to the maximum distribution number of links of the equipment and the distribution link
Number, determines the target bit rate of each distribution link.
In this step, audio frequency and video discharge device is according to the maximum distribution number of links of the equipment and the distribution link
Total number, determines the target bit rate of each distribution link.This step specifically includes procedure below：First, to the total of distribution link
The size of number and the maximum distribution number of links of the equipment is compared.If the total number of the distribution link is less than or waited
In the maximum distribution number of links of the equipment, the first processing mode is performed；If the total number of the distribution link is more than institute
The maximum distribution number of links of equipment is stated, second of processing mode is performed.The first processing mode：With each distribution link
Expect code check as target bit rate.The first processing mode is less than or equal to the equipment in the total number of the distribution link
Performed in the case of maximum distribution number of links.Second of processing mode：First, computing capability defect counts and distribution link-quality
Difference.Specifically, the difference of the total number and the maximum distribution number of links of the equipment of the distribution link is calculated, ability is used as
Defect counts；The difference for expecting code check and audio frequency and video initial data code check of each distribution link is calculated, distribution chain is used as
Road quality difference value.Then, to it is described distribution link quality difference value according to from big to small order sort, select sequence it is preceding with
The distribution link quality difference value of capability defect number same number, with each corresponding distribution of distribution link quality difference value selected
The average expectation code check of link distribution link corresponding with the distribution link quality difference value that one is not selected expects code check most
The corresponding distribution link of distribution link quality difference value and the distribution link do not selected that small value is selected described in are of poor quality
The target bit rate of the corresponding distribution link of value, and target bit rate is used as using the expectation code check of each distribution link not being merged.
Second of processing mode is performed in the case where the total number of the distribution link is more than the maximum distribution number of links of the equipment.
In the embodiment of the present invention two, during audio frequency and video distribution is carried out, by setting multiple thresholdings, according to equipment
Load parameter where different thresholdings it is interval, the expectation code check for distributing link is handled using different strategies, really
Surely the target bit rate of link is distributed, wherein combining expectation code check, the maximum distribution chain of equipment of distribution link in various strategies
The factors such as way, so that when it is determined that distributing the target bit rate of link, it is contemplated that machine utilization and the situation for distributing link, because
This can improve the reliability of audio frequency and video distribution.
Fig. 3 is the structural representation of the audio frequency and video discharge device of the embodiment of the present invention three.As shown in figure 3, the equipment is at least
Including：Acquiring unit 31 and control unit 32.
Wherein, acquiring unit 31 is used for the load parameter for obtaining equipment and the expectation code check of each distribution link.
Control unit 32 is used in the case where the load parameter of the equipment is more than default overload threshold, with described each
The minimum value expected in code check of individual distribution link is used as each target bit rate for distributing link；In the load parameter of the equipment
Less than or equal to the overload threshold and more than in the case of default Secure Threshold, according to the expectation of each distribution link
Code check carries out code check classification, determines the target bit rate of each distribution link；It is less than or equal to institute in the load parameter of the equipment
State Secure Threshold and more than in the case of default light thresholding, code check conjunction is carried out according to the expectation code check of each distribution link
And, determine the target bit rate of each distribution link；It is less than or equal to the situation of the light thresholding in the load parameter of the equipment
Under, according to the maximum distribution number of links of the equipment and the total number of the distribution link, determine the target of each distribution link
Code check.
On the basis of above-mentioned technical proposal, further, described control unit 32 is specifically in the negative of the equipment
Lotus parameter is less than or equal to the overload threshold and more than in the case of default Secure Threshold, in each distribution link
In the range of maximum to the minimum value for expecting code check, the code check grade of predetermined number is divided, for each distribution link, with small
In or equal to it is described distribution link expectation code check code check grade maximum as it is described distribution link target bit rate, its
In, the total number of the code check grade is less than or equal to the maximum distribution number of links of the equipment.
On the basis of above-mentioned technical proposal, further, described control unit 32 is specifically in the negative of the equipment
Lotus parameter is less than or equal to the Secure Threshold and more than in the case of default light thresholding, according to order from large to small to institute
The expectation code check for stating each distribution link is ranked up, since the expectation code check of sequence second, will currently expect code check and poor
The minimum adjacent expectation code check of value merges into an expectation code check, with the current phase for it is expected that code check is minimum with the difference
The adjacent minimum value expected in code check is as the expectation code check after merging, until it is expected that the total number of code check is equal to the equipment
Maximum distribution number of links, each described distribution chain is used as using the expectation code check after merging and the expectation code check for not merging operation
The target bit rate on road.
Or, described control unit 32 is less than or equal to the Secure Threshold specifically for the load parameter in the equipment
And it is flat more than the maxima and minima for expecting code check in the case of default light thresholding, calculating each distribution link
Average, is used as the target bit rate of each distribution link.
Or, described control unit 32 is less than or equal to the Secure Threshold specifically for the load parameter in the equipment
And more than in the case of default light thresholding, interpolation calculation is carried out to the expectation code check of each distribution link or weighting is counted
Calculate, obtain candidate's code check of predetermined number, for each distribution link, with the expectation code check less than or equal to the distribution link
Candidate's code check maximum be used as it is described distribution link target bit rate.
On the basis of above-mentioned technical proposal, further, described control unit 32 is specifically in the negative of the equipment
In the case that lotus parameter is less than or equal to the light thresholding, it is less than or equal to the equipment in the total number of the distribution link
During maximum distribution number of links, using the expectation code check of each distribution link as target bit rate, in the total of the distribution link
When number is more than the maximum distribution number of links of the equipment, the maximum point of the total number and the equipment of the distribution link is calculated
The difference of number of links is sent out, as capability defect number, and it is original to calculate the expectation code check and audio frequency and video of each distribution link
The difference of data bit rate, as distribution link quality difference value, to the distribution link quality difference value according to order from big to small
Sequence, selects the preceding distribution link quality difference value with capability defect number same number that sorts, with each distribution selected
The corresponding distribution link of link-quality difference is corresponding with the distribution link quality difference value that one is not selected to distribute being averaged for link
Expect code check or expect the minimum value of code check as the corresponding distribution link and described of the distribution link quality difference value selected
The target bit rate for the corresponding distribution link of distribution link quality difference value do not selected, and with each distribution link not being merged
Expect code check as target bit rate.
The equipment of the embodiment of the present invention three can be used for performing described in the embodiment of the present invention one and the embodiment of the present invention two
Audio frequency and video distribute the code check adaptive approach of link, and it implements process and technique effect is referred to the embodiment of the present invention one
With the embodiment of the present invention two, here is omitted.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (6)
1. a kind of audio frequency and video distribute the code check adaptive approach of link, it is characterised in that including：
Obtain the load parameter of equipment and the expectation code check of each distribution link；
If the load parameter of the equipment is more than default overload threshold, with expecting in code check for each distribution link
Minimum value is used as each target bit rate for distributing link；
If the load parameter of the equipment is less than or equal to the overload threshold and more than default Secure Threshold, according to described
The expectation code check of each distribution link carries out code check classification, determines the target bit rate of each distribution link；
If the load parameter of the equipment is less than or equal to the Secure Threshold and more than default light thresholding, according to described each
The expectation code check of individual distribution link carries out code check merging, determines the target bit rate of each distribution link；
If the load parameter of the equipment is less than or equal to the light thresholding, according to the maximum distribution number of links of the equipment and
The total number of the distribution link, determines the target bit rate of each distribution link；
The expectation code check of each distribution link carries out code check classification described in the basis, determines the target bit rate of each distribution link
Including：
In the range of maximum to the minimum value of the expectation code check of each distribution link, code check of predetermined number etc. is divided
Level, for each distribution link, using the maximum of the code check grade of the expectation code check less than or equal to the distribution link as
The target bit rate of the distribution link, wherein, the total number of the code check grade is less than or equal to the maximum distribution of the equipment
Number of links.
2. according to the method described in claim 1, it is characterised in that
The expectation code check of each distribution link carries out code check merging described in the basis, determines the target bit rate of each distribution link
Including：
The expectation code check of each distribution link is ranked up according to order from large to small, from the expected code of sequence second
Rate starts, and the current adjacent expectation code check for it is expected that code check is minimum with difference is merged into an expectation code check, with described current
The minimum value in the code check adjacent expectation code check minimum with the difference is expected as the expectation code check after merging, until expecting
The total number of code check is equal to the maximum distribution number of links of the equipment, does not merge with the expectation code check after merging and operation
Expect code check as the target bit rate of each distribution link；
Or, the average value of the maxima and minima of the expectation code check of each distribution link is calculated, it is used as each distribution chain
The target bit rate on road；
Or, interpolation calculation or weighted calculation are carried out to the expectation code check of each distribution link, obtain the candidate of predetermined number
Code check, for each distribution link, is made with the maximum of candidate's code check of the expectation code check less than or equal to the distribution link
For the target bit rate of the distribution link.
3. according to the method described in claim 1, it is characterised in that
The maximum distribution number of links and the total number of the distribution link according to the equipment, determines each distribution link
Target bit rate includes：
If the total number of the distribution link is less than or equal to the maximum distribution number of links of the equipment, with each described distribution
The expectation code check of link is used as target bit rate；
If the total number of the distribution link is more than the maximum distribution number of links of the equipment, total of the distribution link is calculated
Number and the difference of the maximum distribution number of links of the equipment, as capability defect number, and calculate each distribution link
Expect the difference of code check and audio frequency and video initial data code check, it is of poor quality to the distribution link as distribution link quality difference value
It is worth and is sorted according to order from big to small, selects sequence preceding of poor quality with capability defect number same number distribution link
Value, with the corresponding distribution link of each distribution link quality difference value selected and a distribution link quality difference value pair do not selected
The average expectation code check for the distribution link answered expects that the minimum value of code check is used as the distribution link quality difference value pair selected
The distribution link and the target bit rate of the corresponding distribution link of distribution link quality difference value do not selected answered, and with each not
The expectation code check for the distribution link being merged is as target bit rate.
4. a kind of audio frequency and video discharge device, it is characterised in that including：
Acquiring unit, for obtaining the load parameter of equipment and the expectation code check of each distribution link；
Control unit, in the case of being more than default overload threshold in the load parameter of the equipment, with each described point
The minimum value expected in code check for sending out link is used as the target bit rate of each distribution link；It is less than in the load parameter of the equipment
Or equal to the overload threshold and more than in the case of default Secure Threshold, according to the expectation code check of each distribution link
Code check classification is carried out, the target bit rate of each distribution link is determined；It is less than or equal to the peace in the load parameter of the equipment
Air cock limits and more than in the case of default light thresholding, code check merging is carried out according to the expectation code check of each distribution link,
Determine the target bit rate of each distribution link；In the case where the load parameter of the equipment is less than or equal to the light thresholding,
According to the maximum distribution number of links of the equipment and the total number of the distribution link, the object code of each distribution link is determined
Rate；
Described control unit in the load parameter of the equipment specifically for being less than or equal to the overload threshold and more than default
Secure Threshold in the case of, it is described each distribution link expectation code check maximum to minimum value in the range of, divide
The code check grade of predetermined number, for each distribution link, with the code check of the expectation code check less than or equal to the distribution link
The maximum of grade as the distribution link target bit rate, wherein, the total number of the code check grade is less than or equal to institute
State the maximum distribution number of links of equipment.
5. equipment according to claim 4, it is characterised in that
Described control unit in the load parameter of the equipment specifically for being less than or equal to the Secure Threshold and more than default
Light thresholding in the case of, according to order from large to small to it is described each distribution link expectation code check be ranked up, from row
The expectation code check of sequence second starts, and the current adjacent expectation code check for it is expected that code check is minimum with difference is merged into an expected code
Rate, using expectation of the minimum value in the current adjacent expectation code check for it is expected that code check is minimum with the difference as after merging
Code check, until it is expected that the total number of code check is equal to the maximum distribution number of links of the equipment, with the expectation code check after merging and not
Merge operation expects code check as the target bit rate of each distribution link；
Or, described control unit is specifically for being less than or equal to the Secure Threshold in the load parameter of the equipment and being more than
In the case of default light thresholding, the average value of the maxima and minima of the expectation code check of each distribution link is calculated,
It is used as the target bit rate of each distribution link；
Or, described control unit is specifically for being less than or equal to the Secure Threshold in the load parameter of the equipment and being more than
In the case of default light thresholding, interpolation calculation or weighted calculation are carried out to the expectation code check of each distribution link, obtained
Candidate's code check of predetermined number, for each distribution link, with the candidate of the expectation code check less than or equal to the distribution link
The maximum of code check is used as the target bit rate for distributing link.
6. equipment according to claim 4, it is characterised in that
In the case that described control unit in the load parameter of the equipment specifically for being less than or equal to the light thresholding, in institute
When the total number for stating distribution link is less than or equal to the maximum distribution number of links of the equipment, with the phase of each distribution link
Code check is hoped as target bit rate, when the total number of the distribution link is more than the maximum distribution number of links of the equipment, to calculate
The difference of the total number and the maximum distribution number of links of the equipment of the distribution link, as capability defect number, and is calculated
The difference for expecting code check and audio frequency and video initial data code check of each distribution link is right as distribution link quality difference value
The distribution link quality difference value sorts according to order from big to small, selects preceding identical with capability defect number of sequence
Several distribution link quality difference values, is not selected with the corresponding distribution link of each distribution link quality difference value selected and one
The average expectation code check of the corresponding distribution link of distribution link quality difference value expects that the minimum value of code check is selected as described
The corresponding distribution link of distribution link quality difference value and the corresponding distribution link of distribution link quality difference value do not selected
Target bit rate, and target bit rate is used as using the expectation code check of each distribution link not being merged.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101282141A (en) * | 2007-04-05 | 2008-10-08 | 华为技术有限公司 | Method, apparatus and system for transmitting and receiving data |
| CN102355577A (en) * | 2011-09-23 | 2012-02-15 | 上海交通大学 | Method for smoothing network transmission bit-rate of multi-view video streams |
| CN103024460A (en) * | 2012-12-11 | 2013-04-03 | 广东威创视讯科技股份有限公司 | Multi-code stream self-adapting method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4309460B1 (en) * | 2008-01-31 | 2009-08-05 | 株式会社東芝 | Video content distribution system and video content distribution reservation method |
| US8537699B2 (en) * | 2009-06-16 | 2013-09-17 | Qualcomm Incorporated | Managing video adaptation algorithms |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282141A (en) * | 2007-04-05 | 2008-10-08 | 华为技术有限公司 | Method, apparatus and system for transmitting and receiving data |
| CN102355577A (en) * | 2011-09-23 | 2012-02-15 | 上海交通大学 | Method for smoothing network transmission bit-rate of multi-view video streams |
| CN103024460A (en) * | 2012-12-11 | 2013-04-03 | 广东威创视讯科技股份有限公司 | Multi-code stream self-adapting method and system |
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