CN101945278B - Video self-adaptive transcoding method and system - Google Patents

Video self-adaptive transcoding method and system Download PDF

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CN101945278B
CN101945278B CN 201010282711 CN201010282711A CN101945278B CN 101945278 B CN101945278 B CN 101945278B CN 201010282711 CN201010282711 CN 201010282711 CN 201010282711 A CN201010282711 A CN 201010282711A CN 101945278 B CN101945278 B CN 101945278B
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video
transcoding
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CN101945278A (en
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朱定局
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Shenzhen Institute of Advanced Technology of CAS
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Shenzhen Institute of Advanced Technology of CAS
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Abstract

The invention relates to a video self-adaptive transcoding method which comprises the following steps: receiving a video request of a user, and obtaining configuration information of a client; searching video resources according to the video request; obtaining transcoding demands of a video according to the configuration information; and transcoding the searched video according to the transcoding demands. The invention further provides a video self-adaptive transcoding system. The method and the system can lead the video after the transcoding to be applicable to the client, and further meet the video transcoding demands of the different clients.

Description

Video self adaptation code-transferring method and system
[technical field]
The present invention relates to the Video Transcoding Technology field, relate in particular to a kind of video self adaptation code-transferring method and system.
[background technology]
Video code conversion is meant that the video with a certain resolution (or code check, broadcast format etc.) is converted into the video of another resolution (or code check, broadcast format etc.).For adapting to different terminal equipment and various network environment, can play re-sending to relevant terminal behind the video code conversion usually.The terminal is because self hardware environment, network environment and playout software different, and the resolution of requirement, code check and broadcast format tend to different.
Traditional video code conversion mode is set different transcoding demands (like resolution, code check and broadcast format) according to dissimilar terminals usually.For example, to the video that computer is play, resolution, code check and broadcast format etc. all configure in advance, and for the video of mobile phone play, and the video of playing on resolution, code check and broadcast format etc. and the computer is different again.Yet traditional this video code conversion mode is the transcoding demand that configures in advance, can not remove adaptive transcoding according to different terminal equipment.For example, the video of playing on computers is when playing on its mobile phone, if go transcoding, the video that often obtains possibly not be adapted at playing on the mobile phone (for example video is impure and fresh) according to resolution, code check and the broadcast format etc. set before.In addition,, also have different transcoding demands for different terminal equipment of the same type, for example, the mobile phone of different model, the playout software of support maybe be different, and the resolution of requirement, code check and broadcast format all may be different.
[summary of the invention]
Based on this, be necessary can not adapt to the problem of user side to video code conversion, a kind of video self adaptation code-transferring method is provided.
A kind of video self adaptation code-transferring method may further comprise the steps:
Receive user's video request, obtain the configuration information of user side;
According to said video request search video resource;
Obtain the transcoding demand of video according to said configuration information;
According to said transcoding demand the video that searches is carried out transcoding;
After according to the step of video request search video resource, also comprise the store path that obtains the video that searches and the step of attribute information; Said method comprises that also assessment carries out the step of the required resource of transcoding to the video that searches according to resolution, code check and the broadcast format of said transcoding;
Said method also comprises the step of each transcoding node being carried out monitoring resource; After the step of the said transcoding demand of obtaining video according to configuration information, also comprise the inquiry present load, obtain the step of the occupation condition of each transcoding node;
Said step of the video that searches being carried out transcoding according to the transcoding demand comprises according to said stock assessment result and occupation condition to be selected the optimal video resource and confirms transcoding mode, according to the step of the said optimal video resource of said transcoding mode transcoding.
Preferably, said step according to video request search video resource is: search for corresponding video resource from the search of local service end or from the strange land resource points of local service end and resource pool.
Preferably, the configuration information of said user side comprises: video mode and User Priority that the playout software that the network bandwidth between broadcast resolution, user side and the service end of user side, user side use, user use;
The said transcoding demand of obtaining video according to configuration information is: the playout software that uses according to the network bandwidth between broadcast resolution, user side and the service end of said user side and user side obtains resolution, code check and broadcast format to the video code conversion of user's request, and the video mode and the User Priority that use according to said user obtain the video code conversion type.
In addition, also be necessary to provide a kind of video self adaptation trans-coding system.
A kind of video self adaptation trans-coding system comprises user side and carries out mutual service end with it that said user side is sent to service end with user's video request, and said service end comprises:
The user's request respond module is used to receive user's video request, obtains the configuration information of user side;
The video resource search module is according to said video request search video resource;
The demand decision-making module obtains the transcoding demand of video according to said configuration information;
The transcoding module is carried out transcoding according to said transcoding demand to the video of searching for;
Said service end comprises that also assessment carries out the stock assessment module of the required resource of transcoding to the video that searches according to resolution, code check and the broadcast format of said transcoding;
Said service end also comprises the monitoring resource module of each transcoding module place node being carried out monitoring resource; Said monitoring resource module is obtained the occupation condition of each transcoding node after the request of receiving the inquiry present load that said video resource search module sends;
Said service end also comprises according to said stock assessment result and occupation condition selects the optimal video resource also to confirm the transcoding mode decision-making module of transcoding mode; Said transcoding module is according to the said optimal video resource of said transcoding mode transcoding, and the video resource behind the transcoding is sent to user side.
Preferably, said system also comprises the resource pool that has linked to each other, comprised a plurality of strange lands resource points with said service end; Said video resource search module also is used for from local service end search or from the strange land resource points search video resource of local service end and said resource pool, and obtains the store path and the attribute information of the video that searches.
Preferably, the configuration information of said user side comprises: video mode and User Priority that the playout software that the network bandwidth between broadcast resolution, user side and the service end of user side, user side use, user use;
Said demand decision-making module also is used for obtaining resolution, code check and broadcast format to the video code conversion of user's request according to the playout software of the network bandwidth between broadcast resolution, user side and the service end of said user side and user side use, and the video mode and the User Priority that use according to said user obtain the video code conversion type.
Above-mentioned video self adaptation code-transferring method and system; Through obtaining the configuration information of user side; Obtain the transcoding demand of video according to these configuration informations, thus with the video code conversion that searches for being fit to the video of user side, video code conversion can adapt to the demand of user side.
[description of drawings]
Fig. 1 is the flow chart of video self adaptation code-transferring method among the embodiment;
Fig. 2 is the flow chart of video self adaptation code-transferring method among another embodiment;
Fig. 3 is the structured flowchart of video self adaptation trans-coding system among the embodiment;
Fig. 4 is the structured flowchart of video self adaptation trans-coding system among another embodiment;
Fig. 5 is the structured flowchart of service end among the embodiment.
[embodiment]
As shown in Figure 1, a kind of video self adaptation code-transferring method may further comprise the steps:
Step S10 receives user's video request, obtains the configuration information of user side.Comprise the relevant information of the video of user's request in user's the video request,, search for corresponding video resource according to relevant information like video name, video type, video presentation information etc.The configuration information of user side comprises the network bandwidth between broadcast resolution, user side and the service end of user side, playout software that user side uses, video mode that the user uses and User Priority etc.
User side can be terminal equipments such as mobile communication terminal, personal computer, personal digital assistant, and the broadcast resolution of user side is meant that the equipment of user side comes displaying video with great resolution; The network bandwidth between user side and the service end can get access to through detecting the employed network type of user side; The playout software that user side uses the then playout software of the equipment operation through detecting user side gets access to; The video mode that the user uses comprises online playing, off-line download etc.; User Priority is meant: different users can set different grade, and the user gradation of for example setting the registered members is higher than the grade of domestic consumer, can preferentially satisfy this part high user of grade video requirement.
Step S20 is according to video request search video resource.In one embodiment, on the service end of this locality, search for corresponding video resource according to video request.In another embodiment; Also can with the resource pool that includes a plurality of strange lands resource points that the service end of this locality is connected in the corresponding video resource of search; These strange land resource points can be the video resource suppliers who has agreement with the service end of this locality, can the video resource that the resource points from the strange land is obtained be sent to local service end through network.
Step S30 obtains the transcoding demand of video according to configuration information.In one embodiment; Can safeguard a knowledge base in the service end of this locality; Safeguard a tables of data in this knowledge base, write down the corresponding relation of required resolution, code check and broadcast format etc. of broadcast resolution, playout software, the network bandwidth and the transcoding of user side in this tables of data.According to this tables of data, after getting access to the configuration information of user side, can correspondence obtain transcoding demands such as resolution, code check and broadcast format.
In addition; Also safeguarded another tables of data in the knowledge base; Write down the corresponding relation of video mode, User Priority and the video code conversion type of user's use in this tables of data; According to this tables of data, behind the video mode and User Priority that get access to user's use, just can confirm to offer which type of video code conversion type of user.For example, the video mode that the user uses is online playing, then need pay the utmost attention to transcoding speed during video code conversion; If the video mode that uses of user is downloaded as off-line, then can pay the utmost attention to definition behind the transcoding etc.; User's priority is high more, then more preferentially satisfies this type user's video requirement.
Step S40 carries out transcoding according to the transcoding demand to the video that searches.Because resolution, code check and the broadcast format of the transcoding that obtains according to the configuration information of user side are adapted to user side, therefore can realize the self adaptation transcoding, the video behind the transcoding is fit to user side to be play, and has fully satisfied user's demand.
As shown in Figure 2, in another embodiment, the detailed process of video self adaptation code-transferring method is following:
Step S100 receives user's video request, obtains the configuration information of user side.This step is identical with the concrete processing procedure of above-mentioned steps S10, is not then giving unnecessary details at this.
Step S200 is according to video request search video resource.Except the service end search video resource of this locality, also can with the resource pool that includes a plurality of strange lands resource points that the service end of this locality links to each other in the search video resource.
Step S300 obtains the transcoding demand of video according to the configuration information of user side.Be specially: the playout software according to the network bandwidth between broadcast resolution, user side and the service end of user side and user side use obtains resolution, code check and broadcast format to the video code conversion of user's request, and the video mode and the User Priority that use according to the user obtain the video code conversion type.
Step S400 obtains the store path and the attribute information of the video that searches.The attribute information of video comprises resolution and the code check etc. of descriptor, the video of title, video type, the video content of video.Can judge then according to these attribute informations whether the video that searches satisfies user's video requirement.
Step S500, assessment is carried out the required resource of transcoding according to resolution, code check and the broadcast format of transcoding to the video that searches.These resources comprise computational resource, storage resources, time resource and Internet resources etc.Wherein, computational resource is meant the computational resource that video consumed of resolution, code check and broadcast format that the video code conversion that searches is got access to for step S300; Storage resources is meant the memory space that this video code conversion takies; Time resource then refers to the needed time of this video code conversion; Internet resources are meant that resource points is sent to the local needed network bandwidth of service end from the strange land with the video resource that searches.
Step S600 carries out monitoring resource to each transcoding node, obtains the occupation condition of each transcoding node.Service end in this locality can have a plurality of transcoding nodes (or being called computing node) to carry out transcoding, and the occupation condition of a plurality of transcoding nodes comprises that the computational resource of transcoding node takies situation (like CPU usage), storage resources takies situation (like memory usage) and resource occupying situation (like network bandwidth occupancy).
Step S700 selects the optimal video resource according to stock assessment result and occupation condition, confirms transcoding mode.In one embodiment, select the minimum video of transcoding required computational resource, storage resources, time resource and Internet resources, can satisfy user's video requirement as the optimal video resource, again can maximized saving resource.
Among this embodiment; At first select to meet most the video resource of user's request from the service end of this locality; When searching the video resource that meets user's request (promptly searching the consistent video of transcoding demand that resolution, code check and broadcast format and configuration information according to user side obtain) fully, then do not consider the video resource in the strange land resource points in the resource pool.If the service end in this locality is searched for less than the video resource that meets user's request fully, then also need from the resource points of strange land, search for the video resource that meets user's request.For the video resource that the service end from this locality searches, then assess the required computational resource of its transcoding, storage resources and time resource; The video resource that searches for resource points from the strange land, then except assessing the required computational resource of its transcoding, storage resources and time resource, also needs assessment its resource points is sent to the local required Internet resources of service end from the strange land.
When computational resource, storage resources and time resource three can not take into account; For example the required computational resource of transcoding video A lacks than the required computational resource of transcoding video B; But the required storage resources of the transcoding video A storage resources more required than transcoding video B is many, then need consider video mode and User Priority that the user uses.For example, what the user used is the video mode of online playing, and what then should consider is the speed of transcoding, therefore selects the minimum video of transcoding required time resource as the optimal video resource.Again for example, user's priority surpasses preset value, need preferentially satisfy these users' video requirement, then should select the minimum video of transcoding required time resource as the optimal video resource.
In addition, when selecting the optimal video resource, also need consider the occupation condition of each transcoding node.For example, when the computational resource occupation rate of transcoding node surpasses predetermined value, then need select the few video of the required computational resource of transcoding as the optimal video resource; When the storage resources occupation rate of transcoding node surpasses predetermined value, then should select the minimum video of the required storage resources of transcoding as the optimal video resource.Like this, avoided the performance of the system that influences owing to the maximum resource occupancy that the required resource of transcoding has surpassed the transcoding node.
In one embodiment, can also confirm transcoding mode according to stock assessment result and occupation condition.Be to improve transcoding efficiency, can be about to video and be cut into a plurality of, to the transcoding that walks abreast of each piece after cutting through a plurality of transcoding nodes transcoding that walk abreast.Required computational resource, storage resources, time resource and the Internet resources of transcoding determined whether need walk abreast transcoding and need what pieces video be cut into, and whether be to adopt the mode that transcoding limit, limit transmits or adopt the intact mode that transmits again of transcoding.And the occupation condition of transcoding node has determined the ability of parallel transcoding, and what transcoding nodes transcoding is simultaneously promptly arranged.
For example; The required time resource of transcoding surpasses predetermined value, for improving transcoding speed, need video be cut into a plurality of transcodings that walk abreast; And have the resources occupation rate of a plurality of transcoding nodes all lower, then can adopt the lower transcoding node of these resources occupation rates to come each piece is carried out transcoding.In addition, also can need to consider that the user uses the mode of video.For example, it is the online playing mode that the user adopts, and than higher, then should adopt parallel transcoding mode to the transcoding rate request.If User Priority than higher, then need preferentially satisfy these users' video requirement, can adopt the lower transcoding node of resources occupation rate to come the higher user's of while processing priority transcoding demand.
Step S800 carries out transcoding according to transcoding mode to the optimal video resource of selecting.Transcoding can carry out in a plurality of transcoding nodes simultaneously; Owing to be according to confirming that according to user's configuration information the transcoding demand realizes transcoding; Considered simultaneously the resource that transcoding is required and the occupation condition of each transcoding node again, therefore, the video behind the transcoding can fully satisfy user's video requirement; Can adapt to different user sides, again can maximized saving resource.
As shown in Figure 3; A kind of video self adaptation trans-coding system; Comprise user side 10 and carry out mutual service end 20 with it; User side 10 is used for user's video request is sent to service end 20, and service end 20 comprises user's request respond module 210, video resource search module 220, demand decision-making module 230 and transcoding module 240, wherein:
User's request respond module 210 is used to receive user's video request, obtains the configuration information of user side.User's video request comprises the relevant information of the video of user's request, like video name, video type, video presentation information etc., searches for corresponding video resource according to relevant information.The configuration information of user side comprises the network bandwidth between broadcast resolution, user side and the service end of user side, video mode that the playout software that user side uses, user use and User Priority etc.
User side 10 can be terminal equipments such as mobile communication terminal, personal computer, personal digital assistant, and the broadcast resolution of user side 10 is meant that the equipment of user side 10 comes displaying video with great resolution; The network bandwidth between user side 10 and the service end 20 can get access to through detecting user side 10 employed network types; The playout software that user side 10 uses the then playout software of the equipment operation through detecting user side 10 gets access to; The video mode that the user uses comprises online playing, off-line download etc.; User Priority is meant: different users can set different grade, and the user gradation of for example setting the registered members is higher than the grade of domestic consumer, can preferentially satisfy this part high user of grade video requirement.
Video resource search module 220 is used for according to video request search video resource.In one embodiment, on the service end 20 of this locality, search for corresponding video resource according to video request.In another embodiment; As shown in Figure 4; Native system also comprises the resource pool 30 that is connected through network with service end 20, comprises a plurality of strange lands resource points 310 in the resource pool 30, and these strange land resource points 310 all are connected through network with the service end of this locality 20; Can be the different video resource supplier that has agreement with the service end 20 of this locality, can strange land resource points 310 obtained video resource and be sent to local service end 20 through network.
In one embodiment, after video resource search module 220 searches video resource, obtain the store path and the attribute information of the video that searches.The attribute information of video comprises resolution and the code check etc. of descriptor, the video of title, video type, the video content of video.With these attribute informations and the contrast of transcoding demand, can judge then whether the video that searches satisfies user's video requirement.
Demand decision-making module 230 is used for obtaining according to the configuration information of user side 10 the transcoding demand of video.In one embodiment; Safeguard a knowledge base (not shown) in service end 20; Safeguard a tables of data in this knowledge base, write down the corresponding relation of required resolution, code check and broadcast format etc. of broadcast resolution, playout software, the network bandwidth and the transcoding of user side in this tables of data.According to this tables of data, behind the configuration information that gets access to user side 10, can correspondence obtain transcoding demands such as resolution, code check and broadcast format.
In addition; Also safeguarded another tables of data in the knowledge base; Write down the corresponding relation of video mode, User Priority and the video code conversion type of user's use in this tables of data; According to this tables of data, behind the video mode and User Priority that get access to user's use, then can confirm to offer which type of video code conversion type of user.For example, the video mode that the user uses is online playing, then need pay the utmost attention to transcoding speed during video code conversion; If the video mode that uses of user is downloaded as off-line, then can pay the utmost attention to definition behind the transcoding etc.; User's priority is high more, then more preferentially satisfies this type user's video requirement.
Transcoding module 240 is used for according to the transcoding demand video of searching for being carried out transcoding.Because resolution, code check and the broadcast format of the transcoding that obtains according to the configuration information of user side 10 are adapted to user side 10, therefore can realize the self adaptation transcoding, the video behind the transcoding is fit to user side to be play, and has fully satisfied user's demand.
Should be noted that; Can move supercomputer in the service end 20; User's request respond module 210 wherein, video resource search module 220 and demand decision-making module 230 can be used as a management node in the service end 20; The video request that process user end 10 sends, so the management node in the service end 20 can be provided with a plurality of.Transcoding module 240 can be used as the transcoding node (or being called computing node) in the service end 20, also can be provided with a plurality of, a plurality of transcoding nodes transcoding that can walk abreast.
As shown in Figure 5; In another embodiment; Service end 20 is except comprising above-mentioned user's request respond module 210, video resource search module 220, demand decision-making module 230 and transcoding module 240; Also comprise stock assessment module 250, monitoring resource module 260 and transcoding mode decision-making module 270, wherein:
Resolution, code check and broadcast format that stock assessment module 250 is used to assess according to transcoding carry out the required resource of transcoding to the video that searches.These resources comprise computational resource, storage resources, time resource and Internet resources etc.Wherein, computational resource is meant the computational resource that video consumed of resolution, code check and broadcast format that the video code conversion demand decision-making module 230 that searches is got access to; Storage resources is meant the memory space that this video code conversion takies; Time resource then refers to the needed time of this video code conversion; Internet resources are meant that resource points is sent to the local needed network bandwidth of service end from the strange land with the video resource that searches.
260 pairs of each transcoding modules of monitoring resource module 240 place nodes carry out monitoring resource, specifically be the request of the inquiry present load of receiving that video resource search module 220 sends after, obtain the occupation condition of each transcoding node.Can have a plurality of transcoding nodes (or being called computing node) to carry out transcoding in service end 20, the occupation condition of a plurality of transcoding nodes comprises that the computational resource of transcoding node takies situation (like CPU usage), storage resources takies situation (like memory usage) and resource occupying situation (like network bandwidth occupancy).
Transcoding mode decision-making module 270 is used for selecting the optimal video resource and confirming transcoding mode according to stock assessment result and occupation condition.In one embodiment; Video resource search module 220 gets access to the stock assessment result from stock assessment module 250; Get access to occupation condition from monitoring resource module 260; 270 of transcoding mode decision-making modules get access to stock assessment result and occupation condition from video resource search module 220; Select the minimum video of transcoding required computational resource, storage resources, time resource and Internet resources as the optimal video resource, can satisfy user's video requirement, again can maximized saving resource.
Among this embodiment; At first select to meet most the video resource of user's request from service end 20; When searching the video resource that meets user's request (promptly search be resolution, code check and broadcast format obtain with configuration information the consistent video of transcoding demand) fully, then do not consider the video resource in the strange land resource points 310 in the resource pool 30 according to user side.If less than the video resource that meets user's request fully, then also need from strange land resource points 310, search for the video resource that meets user's request in service end 20 search.For the video resource that the service end 20 from this locality searches, then assess the required computational resource of its transcoding, storage resources and time resource; The video resource that searches for resource points 310 from the strange land, then except assessing the required computational resource of its transcoding, storage resources and time resource, also needs assessment its resource points 310 is sent to the required Internet resources of local service end 20 from the strange land.
When computational resource, storage resources and time resource three can not take into account; For example the required computational resource of transcoding video A lacks than the required computational resource of transcoding video B; But the required storage resources of the transcoding video A storage resources more required than transcoding video B is many, then need consider video mode and User Priority that the user uses.For example, what the user used is the video mode of online playing, and what then should consider is the speed of transcoding, therefore selects the minimum video of transcoding required time resource as the optimal video resource.Again for example, user's priority surpasses preset value, need preferentially satisfy these users' video requirement, then should select the minimum video of transcoding required time resource as the optimal video resource.
In addition, when selecting the optimal video resource, also need consider the occupation condition of each transcoding node.For example, when the computational resource occupation rate of transcoding node surpasses predetermined value, then need select the few video of the required computational resource of transcoding as the optimal video resource; When the storage resources occupation rate of transcoding node surpasses predetermined value, then should select the minimum video of the required storage resources of transcoding as the optimal video resource.Like this, avoided the performance of the system that influences owing to the maximum resource occupancy that the required resource of transcoding has surpassed the transcoding node.
In one embodiment, can also confirm transcoding mode according to stock assessment result and occupation condition.Be to improve transcoding efficiency, can be about to video and be cut into a plurality of, to the transcoding that walks abreast of each piece after cutting through a plurality of transcoding nodes transcoding that walk abreast.Required computational resource, storage resources, time resource and the Internet resources of transcoding determined whether need walk abreast transcoding and need what pieces video be cut into, and whether be to adopt the mode that transcoding limit, limit transmits or adopt the intact mode that transmits again of transcoding.And the occupation condition of transcoding node has determined the ability of parallel transcoding, and what transcoding nodes transcoding is simultaneously promptly arranged.
For example; The required time resource of transcoding surpasses predetermined value, for improving transcoding speed, need video be cut into a plurality of transcodings that walk abreast; And have the resources occupation rate of a plurality of transcoding nodes all lower, then can adopt the lower transcoding node of these resources occupation rates to come each piece is carried out transcoding.In addition, also can need to consider that the user uses the mode of video.For example, it is the online playing mode that the user adopts, and than higher, then should adopt parallel transcoding mode to the transcoding rate request.If User Priority than higher, then need preferentially satisfy these users' video requirement, can adopt the lower transcoding node of resources occupation rate to come the higher user's of while processing priority transcoding demand.
240 of transcoding modules are obtained optimal video resource and transcoding mode from transcoding mode decision-making module 270, according to this transcoding mode transcoding optimal video resource, the video resource behind the transcoding are sent to user side 10.Transcoding can carry out in a plurality of transcoding nodes simultaneously; Owing to be according to confirming that according to user's configuration information the transcoding demand realizes transcoding; Considered simultaneously the resource that transcoding is required and the occupation condition of each transcoding node again, therefore, the video behind the transcoding can fully satisfy user's video requirement; Can adapt to different user sides 10, again can maximized saving resource.
In another embodiment; Service end 20 also can comprise system's generation module (not shown); This system's generation module is as the video code conversion service provider; Be used for setting up each module in the service end 20, can set up the hardware resource of respective user end 10, the trans-coding system of video resource, satisfy various customization services to different user side 10.
The above embodiment has only expressed several kinds of execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.

Claims (6)

1. video self adaptation code-transferring method may further comprise the steps:
Receive user's video request, obtain the configuration information of user side;
According to said video request search video resource;
Obtain the transcoding demand of video according to said configuration information;
According to said transcoding demand the video that searches is carried out transcoding;
After according to the step of video request search video resource, also comprise the store path that obtains the video that searches and the step of attribute information; Said method comprises that also assessment carries out the step of the required resource of transcoding to the video that searches according to resolution, code check and the broadcast format of said transcoding;
Said method also comprises the step of each transcoding node being carried out monitoring resource; After the step of the said transcoding demand of obtaining video according to configuration information, also comprise the inquiry present load, obtain the step of the occupation condition of each transcoding node;
Said step of the video that searches being carried out transcoding according to the transcoding demand comprises according to said stock assessment result and occupation condition to be selected the optimal video resource and confirms transcoding mode, according to the step of the said optimal video resource of said transcoding mode transcoding.
2. video self adaptation code-transferring method according to claim 1 is characterized in that, said step according to video request search video resource is: search for corresponding video resource from the search of local service end or from the strange land resource points of local service end and resource pool.
3. video self adaptation code-transferring method according to claim 2; It is characterized in that the configuration information of said user side comprises: video mode and User Priority that the playout software that the network bandwidth between broadcast resolution, user side and the service end of user side, user side use, user use;
The said transcoding demand of obtaining video according to configuration information is: the playout software that uses according to the network bandwidth between broadcast resolution, user side and the service end of said user side and user side obtains resolution, code check and broadcast format to the video code conversion of user's request, and the video mode and the User Priority that use according to said user obtain the video code conversion type.
4. a video self adaptation trans-coding system comprises user side and carries out mutual service end with it, and said user side is sent to service end with user's video request, it is characterized in that, said service end comprises:
The user's request respond module is used to receive user's video request, obtains the configuration information of user side;
The video resource search module is according to said video request search video resource;
The demand decision-making module obtains the transcoding demand of video according to said configuration information;
The transcoding module is carried out transcoding according to said transcoding demand to the video of searching for;
Said service end comprises that also assessment carries out the stock assessment module of the required resource of transcoding to the video that searches according to resolution, code check and the broadcast format of said transcoding;
Said service end also comprises the monitoring resource module of each transcoding module place node being carried out monitoring resource; Said monitoring resource module is obtained the occupation condition of each transcoding node after the request of receiving the inquiry present load that said video resource search module sends;
Said service end also comprises according to said stock assessment result and occupation condition selects the optimal video resource also to confirm the transcoding mode decision-making module of transcoding mode; Said transcoding module is according to the said optimal video resource of said transcoding mode transcoding, and the video resource behind the transcoding is sent to user side.
5. video self adaptation trans-coding system according to claim 4 is characterized in that said system also comprises the resource pool that has linked to each other, comprised a plurality of strange lands resource points with said service end; Said video resource search module also is used for from local service end search or from the strange land resource points search video resource of local service end and said resource pool, and obtains the store path and the attribute information of the video that searches.
6. video self adaptation trans-coding system according to claim 5; It is characterized in that the configuration information of said user side comprises: video mode and User Priority that the playout software that the network bandwidth between broadcast resolution, user side and the service end of user side, user side use, user use;
Said demand decision-making module also is used for obtaining resolution, code check and broadcast format to the video code conversion of user's request according to the playout software of the network bandwidth between broadcast resolution, user side and the service end of said user side and user side use, and the video mode and the User Priority that use according to said user obtain the video code conversion type.
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