CN101902475A - A kind of transfer control method of variable-speed streaming media in next-generation network and device - Google Patents
A kind of transfer control method of variable-speed streaming media in next-generation network and device Download PDFInfo
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Abstract
The invention discloses a kind of transfer control method and device of variable-speed streaming media in next-generation network, described method, comprise: the media transmission channel MTP that the border networks equipment receiver, video service system of video service system side sends sets up request, and this MTP sets up frame of video bit spectrum information and the frame period time that carries the video to be transmitted Streaming Media in the request; According to described frame of video bit spectrum information described video stream media is carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation; Be followed successively by each framing and set up corresponding MTP, and remove the MTP that finishes frame group transformation task.The present invention is by carrying out the frame grouping and each framing being carried out the analysis of MTP bandwidth demand to video stream media, be that corresponding M TP is set up in the transmission of video stream media according to the MTP bandwidth demand that analyzes then, and after corresponding MTP finishes frame group transformation task with its dismounting, therefore, the present invention can not only improve QoS but also optimize and utilize Internet resources.
Description
Technical field
The present invention relates to network technology, relate in particular to a kind of transfer control method and device of variable-speed streaming media.
Background technology
Video request program based on IP (Internet Protocol, Internet Protocol) becomes indispensable converter tools and information obtain manner in people's life just gradually, and related industry is just developing into the national economy new growth point.It has broken through the service mode that user in the traditional broadcast television service can only passive receiving video program, has realized that the user to the autonomous selection of video frequency program and access time, is a kind of important service that telecommunications network and the Internet provide.Yet the high sudden of video transmission proposed challenge to QoS (Quality of Service, service quality) controlling mechanism.Video request program is mainly adopted the variable rate video compression coding technology that video frequency program is compressed and it is stored in the video server for user's program request.Though the result of compression is that each frame of video has identical reproduction time usually, but the bit number that each frame comprises is all inequality usually, so video media shows as the sudden very strong variable-speed streaming media of speed in the IP network transmission course, the peak value frame rate can reach more than ten times of Mean Speed.Add video frequency program original just strict synchronously, to the delay variation sensitivity, in conserve network resources, provide the video stream media service of high QoS by no means easy.
Along with the fast development of network video service, the transmission control problem of variable-speed streaming media has caused the extensive attention of industry, how to improve QoS and optimizes a technical barrier that utilizes Internet resources to become the next generation network development again.To this, solution of the prior art mainly is divided three classes: (1) goes the solution that considers a problem from video server and client angle; (2) solution of the QoS mechanism of dependence IP network self; (3) based on the solution of video stream media rate prediction.Yet these several solutions all are difficult to reach and not only improve QoS but also optimize the purpose of utilizing Internet resources.
Summary of the invention
The transfer control method and the device that the purpose of this invention is to provide a kind of variable-speed streaming media, it can reach not only improves QoS but also optimize the purpose of utilizing Internet resources.
For achieving the above object, the present invention adopts following technical scheme:
A kind of transfer control method of variable-speed streaming media is characterized in that, comprising:
Step 11: the media transmission channel MTP that the border networks equipment receiver, video service system of video service system side sends sets up request, this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Step 12: according to described frame of video bit spectrum information described video stream media is carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
Step 13: the border networks equipment of video service system side is followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
Preferred as technique scheme, the method for carrying out the frame grouping in the described step 12 comprises the fixedly method of dividision into groups, burst associated packets method.
Preferred as technique scheme, the MTP bandwidth demand that calculates each framing in the described step 12 is to adopt to be averaged or to get maximum mode.
Preferred as technique scheme, the relevant information of described Streaming Media also comprises streaming media service QoS index request;
The transfer control method of described variable-speed streaming media also comprises:
Step 21: monitoring stream media network transmission performance and network operation state;
Step 22: according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, then continue step 23, otherwise go to step 21;
Step 23: the border networks equipment of client's side sends MTP and adjusts the border networks equipment of request to the video service system side, to adjust Streaming Media QoS.
Preferred as technique scheme, the transfer control method of described variable-speed streaming media also comprises:
Step 24: the border networks equipment of video service system side initiates new MTP and set up process, and the frame that will not transmit switches on the newly-established MTP after receiving that described MTP adjusts request;
Step 25: after switching was finished, the border networks equipment of video service system side was initiated the demolishing process of former MTP.
A kind of Streaming Media analytical equipment comprises:
Acquisition module is used for obtaining the relevant information that MTP that video service system sends sets up the entrained video to be transmitted Streaming Media of request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Frame grouping and bandwidth demand computing module are used for according to described frame of video bit spectrum information described video stream media being carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
Sending module is used for the MTP bandwidth demand of frame group result and each framing is sent to the border networks equipment of video service system side, sets up MTP and transmits video stream media described to be transmitted being used to.
A kind of border networks equipment of video service system side comprises:
First receiver module is used for the MTP foundation request that the receiver, video service system sends, and this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Sending module is used for described frame of video bit spectrum information and frame period time are sent to the Streaming Media analytical equipment;
Second receiver module, be used for the result that the receiving stream media analytical equipment carries out frame grouping according to described frame of video bit spectrum information to described video stream media, and the MTP bandwidth demand of each framing of going out according to the bit number and the described frame period Time Calculation of each framing of receiving stream media analytical equipment;
MTP sets up and removes module, is used for being followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
A kind of border networks equipment of video service system side comprises:
Receiver module is used for the MTP foundation request that the receiver, video service system sends, and this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Frame grouping and bandwidth demand computing module are used for according to described frame of video bit spectrum information described video stream media being carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
MTP sets up and removes module, is used for being followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
A kind of Streaming Media QoS monitoring device comprises:
Monitoring modular is used for monitoring stream media network transmission performance and network operation state;
Acquisition module is used to obtain the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media;
Judge and trigger module, be used for according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, the border networks equipment that then triggers client's side sends MTP adjustment request to the border networks equipment of video service system side, to regulate Streaming Media QoS.
A kind of border networks equipment of client's side comprises:
First receiver module, the order of Streaming Media QoS is regulated in the triggering that is used for the transmission of receiving stream media QoS monitoring device;
First sending module is used for regulating according to described triggering the order of Streaming Media QoS, adjusts request to the border networks equipment transmission MTP of video service system side, so that the border networks equipment of video service system side is regulated Streaming Media QoS.
Preferred as technique scheme, the border networks equipment of described client's side also comprises:
Second receiver module is used for receiving the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing from the border networks equipment of video service system side, and the streaming media service QoS index request of this video stream media;
Second sending module be used for the current framing of the received video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media sends to Streaming Media QoS monitoring device.
A kind of border networks equipment of client's side comprises:
Monitoring modular is used for monitoring stream media network transmission performance and network operation state;
Acquisition module is used to obtain the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media;
Judge and sending module, be used for according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, then the border networks equipment to the video service system side sends MTP adjustment request, so that the border networks equipment of video service system side is regulated Streaming Media QoS.
The transfer control method of variable-speed streaming media provided by the invention and device and next generation network, by video stream media being carried out the frame grouping and each framing being carried out the analysis of MTP bandwidth demand, be that corresponding M TP is set up in the transmission of video stream media according to the MTP bandwidth demand that analyzes then, and after corresponding MTP finishes frame group transformation task with its dismounting, therefore, the present invention can reach and not only improve QoS but also optimize the purpose of utilizing Internet resources.
Description of drawings
Fig. 1 is the structural representation of the application system of the transfer control method of variable-speed streaming media of the present invention;
Fig. 2 is the schematic flow sheet of the Streaming Media transmission course of the transfer control method of variable-speed streaming media of the present invention;
Fig. 3 is the chart of frame of video bit spectrum;
Fig. 4 is the schematic flow sheet of the QoS adjustment process of the transfer control method of variable-speed streaming media of the present invention;
Fig. 5 is the structural representation of variable-speed streaming media transmission control unit one of the present invention;
Fig. 6 is the structural representation with device shown in Figure 5 one corresponding control device two;
Fig. 7 is the structural representation of variable-speed streaming media transmission control unit three of the present invention;
Fig. 8 is the structural representation of variable-speed streaming media transmission control unit four of the present invention;
Fig. 9 is the structural representation with device shown in Figure 8 four corresponding control device five;
Figure 10 is the structural representation of variable-speed streaming media transmission control unit six of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, whole variable-speed streaming media application system is made of client, transmission network and video service system.Client device comprises PC, notebook computer, intelligent terminal etc., and the user can use these device access networks, obtains the video content of storing in the video service system through compressed encoding.Transmission network is an IP network, mainly realizes the route and the forwarding of Streaming Media control data and media data, and adopts certain mechanism to guarantee the QoS of Streaming Media.The video service system core is a video server, also comprises memory device etc., for whole application system provides video data source and operational management, comprises providing video to send, providing video data retrieval, management and charging etc. for the user.
Slave unit is seen on constituting, mechanism's (transmitting mechanism, processor, Routing Protocol etc.) of border networks equipment in legacy equipment as the input and output in the router, exchange, the present invention has increased Streaming Media analysis (Real-time media analysis, RMA) module and Streaming Media QoS monitoring (Real-time media monitoring, RMM) module, these two modules both can be the independent device forms, also can integratedly respectively be arranged among border networks equipment S and the D.Client is all passed through border networks equipment with transmission network, video service system with transmission network and is linked to each other.
1) function of RMA module is:
● analyzing the characteristic of the Streaming Media that will transmit between video service system and the client, mainly is the frame of video bit spectrum that sends of analysis video service system, streaming media service QoS index request etc., and draws the bandwidth demand of Streaming Media;
● analyze other relevant information, as (this function are not essential, is not key of the present invention) such as communication capacities of priority demand, host-host protocol, coded format, client.
2) function of RMM module is:
● the QoS of the streaming media communication process set up of monitoring comprises the time delay, delay variation, packet loss, frame losing, number of retransmissions of Streaming Media etc.;
● the integrality of monitoring network comprises network topology, link bandwidth, available bandwidth, network congestion etc.;
● the analysis-by-synthesis according to Streaming Media, network state, Streaming Media QoS index request, trigger Streaming Media QoS adjustment process where necessary.
The basic process of variable-speed streaming media application system shown in Figure 1 work is:
Carry out frame grouping and the sequence analysis of MTP bandwidth demand based on frame bit analysis of spectrum earlier, set up MTP according to above-mentioned bandwidth demand sequence again and carry out Streaming Media transmission, MTP sets up the back and carries out Streaming Media QoS in good time and regulate by continuing to carry out streaming media service transmission performance and network state monitoring.
At length introduce the transfer control method of variable-speed streaming media of the present invention below, as shown in Figure 2, comprise the Streaming Media transmission course, this Streaming Media transmission course comprises:
S11: client is initiated the video playback request by transmission network to video service system;
Among this step S11, client is initiated the video playback request to border networks equipment D earlier, border networks equipment D sends to the border networks equipment S that the corresponding video service system connects by network with this request, and border networks equipment S is transmitted to video service system with this request again.
S12: video service system finds corresponding video stream media according to described video playback request, and the media consultation process of initiation and client (comprising video frame rate spectrum, host-host protocol, encoding and decoding etc.);
S13: after described media consultation process is finished, video service system sends media transmission channel (Media Transport Path to the border networks equipment S of its side, MTP) set up request, this MTP sets up the relevant information of carrying described video stream media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time etc.;
S14: according to described frame of video bit spectrum information described video stream media is carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
This step S14 is carried out by above-mentioned RMA module.Detailed process can be: according to certain algorithm frame is divided into groups, every continuous f frame is divided into one group (f＜F, F be this video totalframes), establishes to be divided into N altogether and to organize (N＜F).According to frame bit number in each framing and frame period time, if when analyzing decision and setting up a MTP for each framing, the needed network bandwidth of corresponding MTP.If the bandwidth demand of n framing is b
n, then the MTP bandwidth demand of whole video can constitute bandwidth demand sequence, that is: [a b
1, b
2..., b
n... b
N].
S15: the border networks equipment S of video service system side is that described video stream media is set up MTP according to the MTP bandwidth demand of first framing that analyzes;
Among this step S15, border networks equipment S can be according to the bandwidth demand b of above-mentioned first framing
1, be that first framing is set up MTP_1.
S16: the border networks equipment S notice video service system of video service system side begins to carry out media delivery;
S17: video service system begins to send described video stream media to client;
S18: the border networks equipment S of video service system side continues as described video stream media according to the MTP bandwidth demand of subsequent frame group and sets up MTP, and removes the MTP that finishes frame group transformation task.
The detailed process of this step S18 can be: before second framing arrives, according to the bandwidth demand b of second framing
2, be that second framing is set up MTP_2, after the first framing end of transmission, remove MTP_1.Before the 3rd framing arrives, according to the bandwidth demand b of the 3rd framing
3, be that the 3rd framing is set up MTP_3, after the second framing end of transmission, remove MTP_2.By that analogy, before the n framing arrives, according to the bandwidth demand b of n framing
n, be that the n framing is set up MTP_n, after the n-1 framing end of transmission, remove MTP_n-1.Two-way MTP alternately sets up, and when satisfying raising whole video flow media transmission QoS, reduces the consumption to the network bandwidth as far as possible.
To sum up, the transfer control method of variable-speed streaming media of the present invention, by video stream media being carried out the frame grouping and each framing being carried out the analysis of MTP bandwidth demand, be that corresponding M TP is set up in the transmission of video stream media according to the MTP bandwidth demand that analyzes then, and after corresponding MTP finishes frame group transformation task with its dismounting, therefore, the present invention can reach and not only improve QoS but also optimize the purpose of utilizing Internet resources.
Herein, remark additionally among the above-mentioned steps S14 based on the frame group technology and the MTP bandwidth demand analytical method of frame bit analysis of spectrum.
As shown in Figure 3, video is stored with the document form that compression is good in advance in server.After compression was finished, for each given frame, its bit number all was predetermined usually, even the file layout that adopts many data rate stream to encode simultaneously, server once also only selects a kind of frame of special speed to send usually.The bit number of each frame has just constituted frame of video bit spectrum shown in Figure 3 together in the video, and frame of video bit spectrum has contained the bit number data of each frame in the video in other words.The reproduction time of considering usually each frame of video is (as per second 24 frames) fixed, that is to say according to the frame of video bit to compose the transmission bandwidth demand that can draw the continuous frame of each frame and each group in the video.
Because frame sign widely different (differing from tens times at most), so, also just very big to the demand difference of bandwidth for transmission.According to which kind of standard is that video stream media distributes the MTP transmission bandwidth to become an insoluble problem.Existing way is normally no matter how the characteristic of Streaming Media all distributes fixing bandwidth, perhaps distribute bandwidth according to the Mean Speed or the flank speed of Streaming Media, because the greatest differences of the frame transmission bandwidth demand in the whole video, obviously it is more than sufficient to cause the frame bandwidth of little bandwidth requirement, and the frame of big bandwidth demand then is difficult to satisfy.The present invention by frame is divided into groups, is the unit dynamic bandwidth allocation with the group then, to reduce the sudden allocated bandwidth difficulty of bringing of the sudden bandwidth demand that causes of Streaming Media.
Frame grouping among the present invention can have multiple group technology, comprises the fixedly method of dividision into groups, burst associated packets method etc.Fixedly the method for dividision into groups is to divide one group (M is a constant) according to fixing every continuous N frame.After burst associated packets method was meant that in the continuous series of frames difference of bit number minimum and peak reaches certain threshold value, the frame that these are continuous was divided into one group (frame number in this method in every group changes).Think according to reason, component the smaller the better, minimum every group is had only a frame.But consider the extensibility of the ageing and system that MTP sets up, every framing number should not be very little.
After finishing frame grouping, the MTP bandwidth demand analysis of each group is just become very simple.As, can adopt modes such as being averaged, getting maximum to obtain the bandwidth demand of each framing.
Although adopt the control method of the invention described above, can improve QoS and optimize and to utilize Internet resources, disturb yet exist between, business very complicated owing to network is mutual, exist non-linear between the QoS index that processing such as the route of the initial MTP that sets up, resource allocation, grade of service operation and client obtain, only carried out initial configuration (route, resource, priority etc.) when the firm enter the internet of video stream media, its QoS can not ensure fully.The variation (as chain-circuit time delay, packet loss etc.) of (as congested etc.) and network performance because the variation of network state can cause the deterioration of Streaming Media QoS.Therefore, the present invention also will utilize the RMM module that stream media network transmission performance and network state are monitored and analyzed on the basis of the above, MTP is carried out in good time adjustment, thereby reach adjusting, realize the lasting optimization of Streaming Media QoS and accurately control to Streaming Media QoS.
Among the present invention, the relevant information of above-mentioned Streaming Media can also comprise streaming media service service quality QoS index request (as time delay, shake, packet loss etc.).This streaming media service QoS index request and above-mentioned frame of video bit spectrum information and frame period time can send to client's side in setting up the MTP_1 process border networks equipment D, follow-up to be used for to the lasting optimization of Streaming Media QoS and accurately control.
Simultaneously, the transfer control method of variable-speed streaming media of the present invention as shown in Figure 4, also comprises the QoS adjustment process, and this QoS adjustment process comprises:
S21: monitoring stream media network transmission performance and network operation state;
This step S21 is carried out by the RMM module of the invention described above, and is specific as follows:
A) the RMM module can be passed through the performance data in RTCP (Real-time Transport Control Protocol, RTCP Real-time Transport Control Protocol) the acquisition stream media delivery process, and the row formatization of going forward side by side is convenient to subsequent analysis and is handled;
B) the RMM module can the distribution mechanisms by each LA Management Room obtain network operation status data, and network operation status data comprises the variation, chain-circuit time delay variation, congestion situation of link vacant capacity etc.Distribution mechanisms (similar OSPF mechanism) can for:
Each network equipment of ■ is distributed to self up-to-date network state information that monitors the neighbor device of oneself;
Each network equipment of ■ after receiving the monitoring information that neighbours distribute, by analyze upgrading own monitoring information storehouse, and with this distribution of information to other neighbor device except that this neighbor device.
S22: according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, then continue S23, otherwise go to S21;
Among this step S22, RMM module analysis Monitoring Data, and according to circumstances whether decision triggers streaming media service QoS adjustment process:
■ analysis stream media network transmission performance data, and contrast with streaming media service QoS index request, draw streaming media service performance evaluation (the QoS index request is set up in the request in media transmission channel (MTP) and carried, and can stipulate in the service-level agreement SLA that the user signs);
■ will analyze the network operation status data that monitors on the other hand simultaneously, judges the influence of the variation of network state to Streaming Media;
The analysis result of comprehensive above-mentioned two aspects of ■, again according to the frame of video group transmitted and the judgement of next frame of video group bandwidth demand, whether decision needs to trigger Streaming Media QoS adjustment process.(such as, when corrupting to, the stream media network transmission performance should trigger the QoS adjustment process when exceeding in the QoS index request acceptable scope; Link in the judgement route that MTP experienced can trigger the QoS adjustment process when congestion tendency is arranged.) if trigger the QoS adjustment process, how many frames that residue has not passed in the frame of video group that then also needs to consider transmitting has, and judging whether is worth regulating; If the MTP of next frame group also sets up, then also will judge whether also needs to rebulid.
S23: the border networks equipment D of client's side sends MTP and adjusts the border networks equipment S of request to the video service system side, to adjust Streaming Media QoS;
S24: the border networks equipment S of video service system side initiates new MTP and set up process, and the frame that will not transmit switches on the newly-established MTP after receiving that described MTP adjusts request;
S25: after switching was finished, the border networks equipment S of video service system side initiated the demolishing process of former MTP.
Above-mentioned steps S24 and S25 are the idiographic flow that the border networks equipment S of video service system side adjusts Streaming Media QoS, those skilled in the art should understand that, for adjusting Streaming Media QoS, border networks equipment S can also adopt other flow processs, as the former MTP of direct dismounting, initiate new MTP and set up process, the present frame group of the new transmitting video streaming medium of laying equal stress on.
Network was understood the bandwidth demand inaccuracy of variable-speed streaming media or the method for carrying out the Streaming Media rate prediction all can not satisfy the QoS control requirement with high paroxysmal variable-speed streaming media in the past.The present invention is by introducing frame grouping and MTP bandwidth demand analysis mechanisms and corresponding M TP foundation and the control method based on frame of video bit spectrum, dissolved the contradiction that improves between variable-speed streaming media QoS and the raising network resource utilization, when having reduced variable-speed streaming media MTP allocated bandwidth difficulty, accurate control and optimization have been realized to QoS.
Corresponding with the transfer control method of above-mentioned variable-speed streaming media, the present invention also provides the transmission control unit of following variable-speed streaming media.
On the one hand, the invention provides the border networks equipment of a kind of Streaming Media analysis (RMA) device and video service system side corresponding with it, they are the independent device form and the use that cooperatively interacts.
As shown in Figure 5, a kind of Streaming Media analytical equipment comprises:
Frame grouping and bandwidth demand computing module 502 are used for according to described frame of video bit spectrum information described video stream media being carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
Sending module 503 is used for the MTP bandwidth demand of frame group result and each framing is sent to the border networks equipment of video service system side, sets up MTP and transmits video stream media described to be transmitted being used to.
As shown in Figure 6, the border networks equipment of the corresponding video service system side of Streaming Media analytical equipment a kind of and shown in Figure 5 comprises:
Sending module 602 is used for described frame of video bit spectrum information and frame period time are sent to the Streaming Media analytical equipment;
MTP sets up and removes module 604, is used for being followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
On the other hand, the invention provides a kind of border networks equipment (being that above-mentioned RMA module of the present invention and border networks equipment become one) with video service system side of Streaming Media analytic function.
As shown in Figure 7, a kind of border networks equipment of video service system side comprises:
Receiver module 701 is used for the MTP foundation request that the receiver, video service system sends, and this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Frame grouping and bandwidth demand computing module 702 are used for according to described frame of video bit spectrum information described video stream media being carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
MTP sets up and removes module 703, is used for being followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
Again on the one hand, the invention provides the border networks equipment of a kind of Streaming Media QoS monitoring (RMM) device and client side corresponding with it, they are the independent device form and the use that cooperatively interacts.
As shown in Figure 8, a kind of Streaming Media QoS monitoring device comprises:
Monitoring modular 801 is used for monitoring stream media network transmission performance and network operation state;
Judge and trigger module 803, be used for according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, the border networks equipment that then triggers client's side sends MTP adjustment request to the border networks equipment of video service system side, to regulate Streaming Media QoS.
As shown in Figure 9, the border networks equipment of the corresponding client's side of Streaming Media QoS monitoring device a kind of and shown in Figure 8 comprises:
First sending module 902 is used for regulating according to described triggering the order of Streaming Media QoS, adjusts request to the border networks equipment transmission MTP of video service system side, so that the border networks equipment of video service system side is regulated Streaming Media QoS.
Further, the border networks equipment of client's side shown in Figure 9 can also comprise:
Second receiver module is used for receiving the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing from the border networks equipment of video service system side, and the streaming media service QoS index request of this video stream media;
Second sending module be used for the current framing of the received video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media sends to Streaming Media QoS monitoring device.
On the one hand, the invention provides a kind of border networks equipment (being that above-mentioned RMM module of the present invention and border networks equipment become one) again with client's side of Streaming Media QoS monitoring function.
As shown in figure 10, a kind of border networks equipment of client's side comprises:
Monitoring modular 1001 is used for monitoring stream media network transmission performance and network operation state;
Judge and sending module 1003, be used for according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, then the border networks equipment to the video service system side sends MTP adjustment request, so that the border networks equipment of video service system side is regulated Streaming Media QoS.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is made amendment or is equal to replacement, all should be encompassed in the middle of the protection range of claim of the present invention.
Claims (12)
1. the transfer control method of a variable-speed streaming media is characterized in that, comprising:
Step 11: the media transmission channel MTP that the border networks equipment receiver, video service system of video service system side sends sets up request, this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Step 12: according to described frame of video bit spectrum information described video stream media is carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
Step 13: the border networks equipment of video service system side is followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
2. the transfer control method of variable-speed streaming media according to claim 1 is characterized in that, the method for carrying out the frame grouping in the described step 12 comprises the fixedly method of dividision into groups, burst associated packets method.
3. the transfer control method of variable-speed streaming media according to claim 2 is characterized in that, the MTP bandwidth demand that calculates each framing in the described step 12 is to adopt to be averaged or to get maximum mode.
4. according to the transfer control method of the described variable-speed streaming media of arbitrary claim in the claim 1 to 3, it is characterized in that the relevant information of described Streaming Media also comprises streaming media service QoS index request;
The transfer control method of described variable-speed streaming media also comprises:
Step 21: monitoring stream media network transmission performance and network operation state;
Step 22: according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, then continue step 23, otherwise go to step 21;
Step 23: the border networks equipment of client's side sends MTP and adjusts the border networks equipment of request to the video service system side, to adjust Streaming Media QoS.
5. the transfer control method of variable-speed streaming media according to claim 4 is characterized in that, also comprises:
Step 24: the border networks equipment of video service system side initiates new MTP and set up process, and the frame that will not transmit switches on the newly-established MTP after receiving that described MTP adjusts request;
Step 25: after switching was finished, the border networks equipment of video service system side was initiated the demolishing process of former MTP.
6. a Streaming Media analytical equipment is characterized in that, comprising:
Acquisition module is used for obtaining the relevant information that MTP that video service system sends sets up the entrained video to be transmitted Streaming Media of request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Frame grouping and bandwidth demand computing module are used for according to described frame of video bit spectrum information described video stream media being carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
Sending module is used for the MTP bandwidth demand of frame group result and each framing is sent to the border networks equipment of video service system side, sets up MTP and transmits video stream media described to be transmitted being used to.
7. the border networks equipment of a video service system side is characterized in that, comprising:
First receiver module is used for the MTP foundation request that the receiver, video service system sends, and this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Sending module is used for described frame of video bit spectrum information and frame period time are sent to the Streaming Media analytical equipment;
Second receiver module, be used for the result that the receiving stream media analytical equipment carries out frame grouping according to described frame of video bit spectrum information to described video stream media, and the MTP bandwidth demand of each framing of going out according to the bit number and the described frame period Time Calculation of each framing of receiving stream media analytical equipment;
MTP sets up and removes module, is used for being followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
8. the border networks equipment of a video service system side is characterized in that, comprising:
Receiver module is used for the MTP foundation request that the receiver, video service system sends, and this MTP sets up the relevant information that carries the video to be transmitted Streaming Media in the request, and this relevant information comprises frame of video bit spectrum information and frame period time;
Frame grouping and bandwidth demand computing module are used for according to described frame of video bit spectrum information described video stream media being carried out the frame grouping, and according to the bit number of each framing and the MTP bandwidth demand of described each framing of frame period Time Calculation;
MTP sets up and removes module, is used for being followed successively by the MTP that each framing is set up correspondence according to the MTP bandwidth demand of each framing, and removes the MTP that finishes frame group transformation task.
9. a Streaming Media QoS monitoring device is characterized in that, comprising:
Monitoring modular is used for monitoring stream media network transmission performance and network operation state;
Acquisition module is used to obtain the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media;
Judge and trigger module, be used for according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, the border networks equipment that then triggers client's side sends MTP adjustment request to the border networks equipment of video service system side, to regulate Streaming Media QoS.
10. the border networks equipment of client's side is characterized in that, comprising:
First receiver module, the order of Streaming Media QoS is regulated in the triggering that is used for the transmission of receiving stream media QoS monitoring device;
First sending module is used for regulating according to described triggering the order of Streaming Media QoS, adjusts request to the border networks equipment transmission MTP of video service system side, so that the border networks equipment of video service system side is regulated Streaming Media QoS.
11. the border networks equipment of client's side according to claim 10 is characterized in that, also comprises:
Second receiver module is used for receiving the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing from the border networks equipment of video service system side, and the streaming media service QoS index request of this video stream media;
Second sending module be used for the current framing of the received video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media sends to Streaming Media QoS monitoring device.
12. the border networks equipment of client's side is characterized in that, comprising:
Monitoring modular is used for monitoring stream media network transmission performance and network operation state;
Acquisition module is used to obtain the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, and the streaming media service QoS index request of this video stream media;
Judge and sending module, be used for according to described stream media network transmission performance, network operation state and streaming media service QoS index request, and according to the current framing of the video stream media that is transmitting and the MTP bandwidth demand of next framing, whether decision needs to regulate Streaming Media QoS, if, then the border networks equipment to the video service system side sends MTP adjustment request, so that the border networks equipment of video service system side is regulated Streaming Media QoS.
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| CN201010237287.1A CN101902475A (en) | 2010-07-22 | 2010-07-22 | A kind of transfer control method of variable-speed streaming media in next-generation network and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271280A (en) * | 2011-07-20 | 2011-12-07 | 宝利微电子系统控股公司 | Method and apparatus for variable speed playing of digital audio and video |
| CN109150823A (en) * | 2017-06-15 | 2019-01-04 | 迈络思科技有限公司 | The original video transmission and reception carried out using scalable frame rate |
| CN114143490A (en) * | 2021-11-29 | 2022-03-04 | 云门(深圳)技术有限公司 | Method for previewing SDI video signal in webpage |
-
2010
- 2010-07-22 CN CN201010237287.1A patent/CN101902475A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271280A (en) * | 2011-07-20 | 2011-12-07 | 宝利微电子系统控股公司 | Method and apparatus for variable speed playing of digital audio and video |
| CN109150823A (en) * | 2017-06-15 | 2019-01-04 | 迈络思科技有限公司 | The original video transmission and reception carried out using scalable frame rate |
| CN114143490A (en) * | 2021-11-29 | 2022-03-04 | 云门(深圳)技术有限公司 | Method for previewing SDI video signal in webpage |
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