CN102883185A - Video-on-demand method and equipment thereof - Google Patents
Video-on-demand method and equipment thereof Download PDFInfo
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- CN102883185A CN102883185A CN2011101975096A CN201110197509A CN102883185A CN 102883185 A CN102883185 A CN 102883185A CN 2011101975096 A CN2011101975096 A CN 2011101975096A CN 201110197509 A CN201110197509 A CN 201110197509A CN 102883185 A CN102883185 A CN 102883185A
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Abstract
The invention aims to provide a video-on-demand method and equipment thereof. The method comprises the following steps: video-on-demand service equipment acquires a video-on-demand requirement sent by a user through a mobile terminal; a video resource pool is searched according to the video-on-demand requirement to obtain an initial video document corresponding to the video-on-demand requirement; the initial video document is correspondingly converted according to the relevant attribute of a video of the mobile terminal so as to obtain a targeted video document corresponding to the relevant attribute of the video; and the targeted video document is provided to the mobile terminal. Compared with the prior art, the video request method and the equipment thereof correspondingly convert the acquired initial video document based on the video-on-demand requirement according to the relevant attribute of the video of the mobile terminal sending the video-on-demand requirement so that the mobile terminal of the user can finally get the targeted video document conforming to the relevant attribute of the video and further ensure that the user can obtain a better video-on-demand experience.
Description
Technical field
The present invention relates to the Web Video Service technical field, relate in particular to a kind of video on demand techniques.
Background technology
Existing network video-on-demand system considers that mainly the user uses the stronger video playback apparatus of disposal ability such as personal computer to carry out program request, and do not consider mobile phone, the video request program demand of the portable terminal such as panel computer etc.
For example, because the difference of access network, especially, portable terminal switches between heterogeneous networks in moving process, so that its access bandwidth and network congestion situation all may have larger difference, the code check of the video file that corresponding portable terminal is supported also can be different.And, because the hardware configuration of personal computer is higher, the various video player can be installed, thereby support the media file format, and for portable terminal since its disposal ability a little less than, the portable terminal of every kind of brand, model can only be supported specific media file format, the media file format of supporting such as iphone, ipad comprises mp4, mov etc., the branched media file formats such as mp4,3gp, avi of holding of the mobile phone of htc.In addition, because the screen resolution of portable terminal also differs widely, if do not provide the video file that adapts with it for the portable terminal of different resolution, its video display effect also can be had a greatly reduced quality so, even can't play.
Therefore, how to provide a kind of video on demand techniques that is applicable to portable terminal, so that the user when carrying out video request program via portable terminal, can obtain preferably video display effect and user's experience, become one of present urgent problem.
Summary of the invention
The purpose of this invention is to provide a kind of method and apparatus for video request program.
According to an aspect of the present invention, provide a kind of VOD method, wherein, the method may further comprise the steps:
A obtains the video on-demand request that the user sends via portable terminal;
B is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request;
C carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes;
D provides described target video file to described portable terminal.
According to another aspect of the present invention, also provide a kind of video-on-demand service equipment, wherein, this equipment comprises:
The order request deriving means is used for obtaining the video on-demand request that the user sends via portable terminal;
The original document deriving means is used for according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request;
The original document conversion equipment is used for the video association attributes according to described portable terminal, and described initial video file is carried out corresponding conversion, to obtain the target video file corresponding with described video association attributes;
The file destination generator is used for described target video file is provided to described portable terminal.
Compared with prior art, the present invention is according to the video association attributes of the portable terminal that sends video on-demand request, the media file format of supporting such as this portable terminal, corresponding screen resolution or the speed of access network etc., the initial video file that obtains based on this video on-demand request is carried out corresponding conversion, and the target video file that will obtain after will changing provides to this portable terminal, so that the target video file that the final acquisition of user's portable terminal conforms to its video association attributes, thereby guarantee that the user obtains better video request program and experiences.
And, because existing video-on-demand service equipment, mainly provide video-on-demand service towards the stronger video playback apparatus of the disposal abilities such as personal computer, the present invention can be on existing video-on-demand service Equipment Foundations, video association attributes according to customer mobile terminal, initial video file to existing video-on-demand service equipment provides carries out corresponding conversion, to obtain to be adapted to the target video file of customer mobile terminal.
Description of drawings
By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates the equipment schematic diagram according to the video-on-demand service equipment of one aspect of the invention;
Fig. 2 illustrates the equipment schematic diagram of video-on-demand service equipment in accordance with a preferred embodiment of the present invention;
Fig. 3 illustrates the equipment schematic diagram according to the video-on-demand service equipment of another preferred embodiment of the present invention;
Fig. 4 illustrates the method flow diagram of video request program according to a further aspect of the present invention;
Fig. 5 illustrates the method flow diagram of video request program in accordance with a preferred embodiment of the present invention;
Fig. 6 illustrates the method flow diagram according to the video request program of another preferred embodiment of the present invention.
Same or analogous Reference numeral represents same or analogous parts in the accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the equipment schematic diagram according to one aspect of the invention, and a kind of video-on-demand service equipment is shown.Wherein, this video-on-demand service equipment 1 comprises order request deriving means 11, original document deriving means 12, original document conversion equipment 13 and file destination generator 14.Particularly, order request deriving means 11 obtains the video on-demand request that the user sends via portable terminal; Original document deriving means 12 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; Original document conversion equipment 13 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; File destination generator 14 provides described target video file to described portable terminal.At this, video-on-demand service equipment 1 includes but not limited to network host, single network server, the set of a plurality of webserver or based on the set of computers of cloud computing, at this, cloud computing is a kind of of Distributed Calculation, a super virtual machine that is comprised of the loosely-coupled computer collection of a group.Those skilled in the art will be understood that; above-mentioned video-on-demand service equipment is only for giving an example; other video-on-demand service equipment existing or that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Order request deriving means 11 obtains the video on-demand request that the user sends via portable terminal.At this, the mode that order request deriving means 11 obtains described video on-demand request includes but not limited to: 1) receive the video on-demand request that the user sends from portable terminal; 2) receive the user of third party device forwarding from the video on-demand request of portable terminal transmission.Those skilled in the art will be understood that; the above-mentioned mode of video on-demand request of obtaining is only for giving an example; other existing or modes of obtaining video on-demand request that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Original document deriving means 12 is according to user's video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request.For example, the user sends video on-demand request via portable terminal to video-on-demand service equipment 1, and the order request deriving means 11 of video-on-demand service equipment 1 receives this video on-demand request; Original document deriving means 12 carries out matching inquiry according to this video on-demand request at Video Reservoir, obtains corresponding initial video file.At this, described Video Reservoir comprises the Video Reservoir that the Video Reservoir of video-on-demand service equipment 1 or the third party device that links to each other with video-on-demand service equipment 1 provide, as based on CDN (content distributing network) Video Reservoir or based on the Video Reservoir of P2P network.Those skilled in the art will be understood that; above-mentioned mode and the Video Reservoir that obtains the initial video file only is for example; other existing or modes of obtaining the initial video file that may occur from now on or Video Reservoir are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, original document deriving means 12 is according to the address information of user's video on-demand request and customer mobile terminal, and the search Video Reservoir is to obtain corresponding initial video file.At this, the mode that original document deriving means 12 obtains described initial video file according to the address information of video on-demand request and portable terminal includes but not limited to: 1) video-on-demand service equipment 1 comprises the server cluster based on CDN (content distributing network), central server among this CDN is according to the address information of customer mobile terminal, user's video on-demand request is redirected to the nearest server of this this portable terminal of CDN middle distance, the original document deriving means 12 of this server is according to this video on-demand request, in the Video Reservoir of this server, search for, to obtain corresponding initial video file; 2) video-on-demand service equipment 1 comprises the server cluster based on P2P (peer-to-peer network), at least one node in this P2P network receives user's video on-demand request, the original document deriving means 12 of this receiving node is according to the address information of this video on-demand request and portable terminal, the search Video Reservoir, determine to store corresponding initial video file and the node nearest apart from this portable terminal, this nearest node provides this initial video file to this customer mobile terminal; 3) original document deriving means 12 elder generations are according to user's video on-demand request, the Video Reservoir that search and the third party device that video-on-demand service equipment 1 links to each other provide, for example searching for based on CDN (content distributing network) Video Reservoir or based on the Video Reservoir of P2P network, with a plurality of initial video files in the different nodes that are distributed in CDN or P2P network that obtain to be complementary, again according to the address information of this customer mobile terminal, determine apart from the immediate node of this customer mobile terminal from these nodes, this nearest node provides the initial video file of its storage to this customer mobile terminal.Those skilled in the art will be understood that; the above-mentioned mode of initial video file of obtaining is only for giving an example; other existing or modes of obtaining the initial video file that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Original document conversion equipment 13 is according to the video association attributes of portable terminal, and the initial video file that original document deriving means 12 is obtained carries out corresponding conversion, to obtain the target video file corresponding with described video association attributes.At this, described video association attributes includes but not limited to any applicable to the attribute that affects the video playback of customer mobile terminal of the present invention, such as the screen resolution of portable terminal, the media file format of supporting etc.; Described video association attributes can obtain by the video on-demand request of resolving the user, also can obtain by the inquiry terminal attribute library according to the identification information of portable terminal in the described video on-demand request, can also obtain by the query requests that sends the video association attributes to described portable terminal.Original document conversion equipment 13 not only can be changed the initial video file according to a video association attributes of portable terminal, can also carry out corresponding conversion to the initial video file according to the multinomial video association attributes of portable terminal.For example, original document deriving means 12 obtains the initial video file; Original document conversion equipment 13 is according to the screen resolution of portable terminal, the media file format of supporting and current network speed, the screen resolution of this initial video file, the media file format of supporting and code check are changed, to obtain the target video file consistent with every video association attributes of this portable terminal.Those skilled in the art will be understood that; the mode of above-mentioned video association attributes and conversion initial video file is only for giving an example; the mode of other video association attributeses existing or that may occur from now on or conversion initial video file is as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, described video association attributes includes but not limited to, below at least each:
1) media file format supported of described portable terminal;
2) screen resolution of described portable terminal;
3) speed of the access network of described portable terminal.
Particularly, its media file format of supporting of different portable terminals and corresponding screen resolution are different, and the speed of the access network of portable terminal comprises that the Virtual network operator of portable terminal is the network rate (being bandwidth) of its distribution and the current network speed of portable terminal.Original document conversion equipment 13 can carry out corresponding conversion to described initial video file according to the one or more of video association attributes of portable terminal.For example, current network speed according to portable terminal, the code check of 13 pairs of described initial video files of original document conversion equipment carries out corresponding conversion, to obtain the target video file consistent with the current network speed of this portable terminal, so that portable terminal can smoothly must be play this target video file.And for example, original document conversion equipment 13 according to the screen resolution of portable terminal with and the media file format supported, change resolution and the media file format of described initial video file, can decode and play and picture target video file clearly to obtain this portable terminal.Those skilled in the art will be understood that above-mentioned video association attributes only for giving an example, and other video association attributeses existing or that may occur from now on also should be included in the protection range of the present invention as applicable to the present invention, and are contained in this with way of reference.
The target video file that file destination generator 14 obtains 13 conversions of original document conversion equipment provides the portable terminal to the user.At this, according to its communication protocol of supporting, communication protocols such as HTTP, RTP, MMS, P2P is sent to user's portable terminal to file destination generator 14 with described target video file.Those skilled in the art will be understood that; the above-mentioned mode that the target video file is provided and communication protocol are only for for example; other existing or modes that the target video file is provided that may occur from now on or communication protocol are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, file destination generator 14 is a plurality of target video segmentations with the target video file division that 13 conversions of original document conversion equipment obtain; Provide portable terminal to the user with described target video segmentation.At this, file destination generator 14 is by various Video segmentation instruments, Video segmentation softwares such as Video segmentation expert, Splitlt (video file Fast Segmentation), Boilsoft Video Splitter (Video segmentation device), be a plurality of target video segmentations with described target video file division, and with described target video segmentation according to its communication protocol of supporting, communication protocols such as HTTP, RTP, MMS, P2P is sent to user's portable terminal.Those skilled in the art will be understood that; above-mentioned mode, Video segmentation instrument and the communication protocol of target video segmentation of providing is only for giving an example; other existing or the mode that the target video segmentation is provided, Video segmentation instrument or the communication protocols that may occur from now on are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, order request deriving means 11, original document deriving means 12, original document conversion equipment 13 and file destination generator 14 are constant work.Particularly, order request deriving means 11 obtains the video on-demand request that the user sends via portable terminal; Original document deriving means 12 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; Original document conversion equipment 13 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; File destination generator 14 provides described target video file to described portable terminal.At this, it will be understood by those skilled in the art that " continuing " refers to that order request deriving means 11, original document deriving means 12, original document conversion equipment 13 and file destination generator 14 require to carry out providing of the obtaining of the obtaining of video on-demand request, initial video file, conversion and target video file according to the mode of operation of setting or adjust in real time respectively, until video-on-demand service equipment 1 stops to obtain user's video on-demand request in a long time.
In a preferred embodiment of video-on-demand service equipment 1 shown in Figure 1, order request deriving means 11 obtains the video on-demand request that the user sends via portable terminal; Original document deriving means 12 is according to the video association attributes of described video on-demand request and described portable terminal, and the search Video Reservoir is to obtain corresponding initial video file; Original document conversion equipment 13 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; File destination generator 14 provides described target video file to described portable terminal.
Wherein, original document deriving means 12 is according to one or more search the in the video association attributes of user's video on-demand request and customer mobile terminal, to obtain the initial video file identical or close with these video association attributes parts of this portable terminal.Original document conversion equipment 13 is according to other and this inconsistent video association attributes of initial video file of this portable terminal, this initial video file is carried out corresponding conversion, to obtain the target video file corresponding with the video association attributes of this portable terminal.
For example, order request deriving means 11 obtains the video on-demand request that the user sends via portable terminal; Original document deriving means 12 is according to the screen resolution of this video on-demand request and this portable terminal, the media file format of supporting, in Video Reservoir, search for, obtain initial video files identical from this mobile terminal screen resolution but that media file format is different; The media file format that original document conversion equipment 13 is supported according to this portable terminal carries out format conversion to this initial video file, to obtain corresponding target video file; File destination generator 14 is sent to this portable terminal with this target video file.
Those skilled in the art will be understood that; the above-mentioned mode of initial video file of obtaining is only for giving an example; other existing or modes of obtaining the initial video file that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Preferably, also according to user's video on-demand request, in conjunction with address information and the video association attributes of customer mobile terminal, the search Video Reservoir is to obtain corresponding initial video file for original document deriving means 12.
For example, video-on-demand service equipment 1 comprises the server cluster based on CDN (content distributing network), the central server of this CDN is according to the address information of portable terminal, user's video on-demand request is redirected to the nearest server of this this portable terminal of CDN middle distance, the original document deriving means 12 of this server is according to the screen resolution of this video on-demand request and this portable terminal, the media file format of supporting, in the Video Reservoir of this server, search for, obtain identical with this mobile terminal screen resolution, but the initial video file that media file format is different; The media file format that original document conversion equipment 13 is supported according to this portable terminal carries out format conversion to this initial video file, to obtain corresponding target video file; File destination generator 14 is sent to this portable terminal with this target video file.
Those skilled in the art also will be understood that; the above-mentioned mode of initial video file of obtaining is only for giving an example; other existing or modes of obtaining the initial video file that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Fig. 2 is equipment schematic diagram in accordance with a preferred embodiment of the present invention, and a kind of video-on-demand service equipment is shown.Wherein, this video-on-demand service equipment 1 comprises order request deriving means 21, original document deriving means 22, original document conversion equipment 23, file destination generator 24 and video attribute deriving means 25.Particularly, order request deriving means 21 obtains the video on-demand request that the user sends via portable terminal; Original document deriving means 22 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; Video attribute deriving means 25 obtains the video association attributes of described portable terminal; Original document conversion equipment 23 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; File destination generator 24 provides described target video file to described portable terminal.
Wherein, the performed operation of program request acquisition request device 11 among the performed operation of program request acquisition request device 21 among Fig. 2, original document deriving means 22, original document conversion equipment 23 and file destination generator 24 and Fig. 1, original document deriving means 12, original document conversion equipment 13 and file destination generator 14 is identical or basic identical, for simplicity's sake, be contained in this with way of reference, repeat no more.
Video attribute deriving means 25 obtains the video association attributes of customer mobile terminal.At this, the mode that video attribute deriving means 25 obtains described video association attributes includes but not limited to:
1) the video association attributes of reception user's portable terminal transmission, at this, this video association attributes can be that portable terminal initiatively sends to video-on-demand service equipment 1, also can be that portable terminal answers the query requests of video-on-demand service equipment 1 to its transmission.For example, portable terminal is when sending video on-demand request to video-on-demand service equipment 1, send the video association attributes of this portable terminal to this video-on-demand service equipment 1, provide the target video file corresponding with its video association attributes to be used for this video-on-demand service equipment 1 to it, correspondingly, video attribute deriving means 25 receives the video association attributes of this portable terminal.And for example, the order request deriving means 11 of video-on-demand service equipment 1 receives user's video on-demand request; Video attribute deriving means 25 sends video association attributes query requests to this user's portable terminal, and receives the video association attributes that this portable terminal returns.
2) according to user's video on-demand request, obtain the video association attributes of customer mobile terminal, concrete mode includes but not limited to:
A) resolve user's video on-demand request, extract described video association attributes from the relevant field of this video on-demand request.For example, portable terminal sends video on-demand request to video-on-demand service equipment 1, and writes the video association attributes of this portable terminal in the respective field in packet header of the packet that comprises this video on-demand request; The order request deriving means 11 of video-on-demand service equipment 1 receives this and comprises the packet of user's video on-demand request; Video attribute deriving means 25 is resolved this packet, extracts the video association attributes of this portable terminal from the respective field in its packet header.
B) according to user's video on-demand request, obtain the identification information of customer mobile terminal, according to described identification information, the inquiry terminal attribute library is to obtain the video association attributes of customer mobile terminal.Particularly, video attribute deriving means 25 is resolved user's video on-demand request, extract the identification information of customer mobile terminal from the relevant field of this video on-demand request, according to this identification information, the inquiry terminal attribute library, obtain the video association attributes of customer mobile terminal, wherein, described terminal attribute storehouse can be that video-on-demand service equipment 1 self is stored, the Virtual network operator that also can be portable terminal provides, and can also be that other third party devices that store the terminal attribute of portable terminal provide.For example, portable terminal sends video on-demand request to video-on-demand service equipment 1, and writes the identification information of this portable terminal in the packet header of the packet that comprises this video on-demand request; The order request deriving means 11 of video-on-demand service equipment 1 receives this and comprises the packet of user's video on-demand request; Video attribute deriving means 25 is resolved this packet, from the respective field in its packet header, extract the identification information of this portable terminal, and inquire about the terminal attribute storehouse that the Virtual network operator of this portable terminal provides according to this identification information, thereby obtain the video association attributes of this portable terminal.
Those skilled in the art will be understood that; above-mentioned mode and the terminal attribute storehouse that obtains the video association attributes of portable terminal only is for example; the mode of other existing or video association attributeses that obtain portable terminal that may occur from now on or terminal attribute storehouse are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Need to prove, those skilled in the art will be understood that, above-mentioned video attribute deriving means 25 both can be independent of original document deriving means 22 or original document conversion equipment 23, also can integrate with original document deriving means 22 or original document conversion equipment 23.
Those skilled in the art also will be understood that, do not have strict ordinal relation between the performed operation of the operation that video attribute deriving means 25 is performed and original document deriving means 22, the operation that video attribute deriving means 25 obtains the video association attributes of customer mobile terminal can be obtained with the operation of the corresponding initial video file of user's order request with original document deriving means 22 and be carried out simultaneously, perhaps carries out before or after original document deriving means 22 obtains the operation of described initial video file.
Fig. 3 is the equipment schematic diagram of another preferred embodiment according to the present invention, and a kind of video-on-demand service equipment is shown.Wherein, this video-on-demand service equipment 1 comprises order request deriving means 31, original document deriving means 32, original document conversion equipment 33, file destination generator 34, video attribute deriving means 35 and file attribute generator 36.Particularly, order request deriving means 31 obtains the video on-demand request that the user sends via portable terminal; Original document deriving means 32 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; File attribute generator 36 provides the correlation attribute information of described initial video file to described portable terminal; Video attribute deriving means 35 is received from the video association attributes of the described portable terminal corresponding with described correlation attribute information of described portable terminal transmission; Original document conversion equipment 33 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; File destination generator 34 provides described target video file to described portable terminal.
Wherein, the performed operation of program request acquisition request device 11 among the performed operation of program request acquisition request device 31 among Fig. 3, original document deriving means 32, original document conversion equipment 33 and file destination generator 34 and Fig. 1, original document deriving means 12, original document conversion equipment 13 and file destination generator 14 is identical or basic identical, for simplicity's sake, be contained in this with way of reference, repeat no more.
The correlation attribute information of the initial video file that file attribute generator 36 obtains original document deriving means 32 provides the portable terminal to the user.At this, described correlation attribute information includes but not limited to any applicable to the described initial video file of the present invention attribute information corresponding with the video association attributes of customer mobile terminal, the media file format of all as described initial video files, code check, resolution etc.File attribute generator 36 provides the mode of described correlation attribute information to include but not limited to: 1) with described correlation attribute information one by one or once all push to user's portable terminal; 2) with in the described correlation attribute information partly or entirely based on page technology, such as ASP, JSP, PHP etc., generate the correlation attribute information page of initial video file, a) with the portable terminal of this page push to the user, perhaps b) URL of this page is pushed to user's portable terminal, the correlation attribute information page of the initial video file that is pointed to via this URL of its mobile terminal accessing by the user.Those skilled in the art will be understood that; the correlation attribute information of above-mentioned initial video file and mode that described correlation attribute information is provided are only for for example; the correlation attribute information of other initial video files existing or that may occur from now on or mode that described correlation attribute information is provided are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Video attribute deriving means 35 is received from the video association attributes of this corresponding portable terminal of the correlation attribute information with the initial video file that user's portable terminal sends.For example, order request deriving means 31 obtains user's video on-demand request; Original document deriving means 32 is according to this video on-demand request, and the search Video Reservoir is to obtain corresponding initial video file; File attribute generator 36 is sent to the correlation attribute information such as the media file format of these initial video files, code check, resolution this user's portable terminal, this portable terminal is according to the correlation attribute information of these initial video files, scan its video association attributes tabulation, determine that media file format is not complementary, and the media file format of its support is sent to video-on-demand service equipment 1; The video attribute deriving means 35 of this video-on-demand service equipment 1 receives the media file format that this portable terminal is supported; Original document conversion equipment 33 carries out corresponding format conversion according to this media file format to this initial video file, to obtain corresponding target video file; Target video file after file destination generator 34 will be changed provides to this portable terminal.
Fig. 4 is method flow diagram according to a further aspect of the present invention, and a kind of video request-program process of computer practice is shown.At this, described computer comprises anyly can carry out the modernized intelligent electronic device of massive values computation and various information processings automatically, at high speed according to the program of prior storage, and its hardware comprises microprocessor, FPGA, DSP, embedded device etc.Particularly, in step S401, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal; In step S402, video-on-demand service equipment 1 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; In step S403, video-on-demand service equipment 1 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; In step S404, video-on-demand service equipment 1 provides described target video file to described portable terminal.At this, video-on-demand service equipment 1 includes but not limited to network host, single network server, the set of a plurality of webserver or based on the set of computers of cloud computing, at this, cloud computing is a kind of of Distributed Calculation, a super virtual machine that is comprised of the loosely-coupled computer collection of a group.Those skilled in the art will be understood that; above-mentioned video-on-demand service equipment is only for giving an example; other video-on-demand service equipment existing or that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
In step S401, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal.At this, the mode that video-on-demand service equipment 1 obtains described video on-demand request includes but not limited to: 1) receive the video on-demand request that the user sends from portable terminal; 2) receive the user of third party device forwarding from the video on-demand request of portable terminal transmission.Those skilled in the art will be understood that; the above-mentioned mode of video on-demand request of obtaining is only for giving an example; other existing or modes of obtaining video on-demand request that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
In step S402, video-on-demand service equipment 1 is according to user's video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request.For example, in step S401, the user sends video on-demand request via portable terminal to video-on-demand service equipment 1, and this video-on-demand service equipment 1 receives this video on-demand request; In step S402, video-on-demand service equipment 1 carries out matching inquiry according to this video on-demand request at Video Reservoir, obtains corresponding initial video file.At this, described Video Reservoir comprises the Video Reservoir that the Video Reservoir of video-on-demand service equipment 1 or the third party device that links to each other with video-on-demand service equipment 1 provide, as based on CDN (content distributing network) Video Reservoir or based on the Video Reservoir of P2P network.Those skilled in the art will be understood that; above-mentioned mode and the Video Reservoir that obtains the initial video file only is for example; other existing or modes of obtaining the initial video file that may occur from now on or Video Reservoir are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, in step S402, video-on-demand service equipment 1 is according to the address information of user's video on-demand request and customer mobile terminal, and the search Video Reservoir is to obtain corresponding initial video file.At this, the mode that video-on-demand service equipment 1 obtains described initial video file according to the address information of video on-demand request and portable terminal includes but not limited to: 1) video-on-demand service equipment 1 comprises the server cluster based on CDN (content distributing network), central server among this CDN is according to the address information of customer mobile terminal, user's video on-demand request is redirected to the nearest server of this this portable terminal of CDN middle distance, this server is according to this video on-demand request, in its Video Reservoir, search for, to obtain corresponding initial video file; 2) video-on-demand service equipment 1 comprises the server cluster based on P2P (peer-to-peer network), at least one node in this P2P network receives user's video on-demand request, this receiving node is according to the address information of this video on-demand request and portable terminal, the search Video Reservoir, determine to store corresponding initial video file and the node nearest apart from this portable terminal, this nearest node provides this initial video file to this customer mobile terminal; 3) video-on-demand service equipment 1 elder generation is according to user's video on-demand request, the Video Reservoir that search and the third party device that this video-on-demand service equipment 1 links to each other provide, for example searching for based on CDN (content distributing network) Video Reservoir or based on the Video Reservoir of P2P network, with a plurality of initial video files in the different nodes that are distributed in CDN or P2P network that obtain to be complementary, again according to the address information of this customer mobile terminal, determine apart from the immediate node of this customer mobile terminal from these nodes, this nearest node provides the initial video file of its storage to this customer mobile terminal.Those skilled in the art will be understood that; the above-mentioned mode of initial video file of obtaining is only for giving an example; other existing or modes of obtaining the initial video file that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
In step S403, video-on-demand service equipment 1 carries out corresponding conversion according to the video association attributes of portable terminal to its initial video file that obtains in step S402, to obtain the target video file corresponding with described video association attributes.At this, described video association attributes includes but not limited to any applicable to the attribute that affects the video playback of customer mobile terminal of the present invention, such as the screen resolution of portable terminal, the media file format of supporting etc.; Described video association attributes can obtain by the video on-demand request of resolving the user, also can obtain by the inquiry terminal attribute library according to the identification information of portable terminal in the described video on-demand request, can also obtain by the query requests that sends the video association attributes to described portable terminal.Video-on-demand service equipment 1 not only can be changed the initial video file according to a video association attributes of portable terminal, can also carry out corresponding conversion to the initial video file according to the multinomial video association attributes of portable terminal.For example, in step S402, video-on-demand service equipment 1 obtains the initial video file; In step S403, video-on-demand service equipment 1 is according to the screen resolution of portable terminal, the media file format of supporting and current network speed, the screen resolution of this initial video file, the media file format of supporting and code check are changed, to obtain the target video file consistent with every video association attributes of this portable terminal.Those skilled in the art will be understood that; the mode of above-mentioned video association attributes and conversion initial video file is only for giving an example; the mode of other video association attributeses existing or that may occur from now on or conversion initial video file is as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, described video association attributes includes but not limited to, below at least each:
1) media file format supported of described portable terminal;
2) screen resolution of described portable terminal;
3) speed of the access network of described portable terminal.
Particularly, its media file format of supporting of different portable terminals and corresponding screen resolution are different, and the speed of the access network of portable terminal comprises that the Virtual network operator of portable terminal is the network rate (being bandwidth) of its distribution and the current network speed of portable terminal.Video-on-demand service equipment 1 can carry out corresponding conversion to described initial video file according to the one or more of video association attributes of portable terminal.For example, current network speed according to portable terminal, the code check of 1 pair of described initial video file of video-on-demand service equipment carries out corresponding conversion, to obtain the target video file consistent with the current network speed of this portable terminal, so that portable terminal can smoothly must be play this target video file.And for example, according to the screen resolution of portable terminal with and the media file format supported, resolution and the media file format of the described initial video file of video-on-demand service equipment 1 conversion can be decoded and play and picture target video file clearly to be obtained this portable terminal.Those skilled in the art will be understood that above-mentioned video association attributes only for giving an example, and other video association attributeses existing or that may occur from now on also should be included in the protection range of the present invention as applicable to the present invention, and are contained in this with way of reference.
In step S404, video-on-demand service equipment 1 is changed the target video file that obtains with it portable terminal to the user is provided in step S403.At this, according to its communication protocol of supporting, communication protocols such as HTTP, RTP, MMS, P2P is sent to user's portable terminal to video-on-demand service equipment 1 with described target video file.Those skilled in the art will be understood that; the above-mentioned mode that the target video file is provided and communication protocol are only for for example; other existing or modes that the target video file is provided that may occur from now on or communication protocol are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, video-on-demand service equipment 1 is a plurality of target video segmentations with its target video file division of changing acquisition in step S403; Provide portable terminal to the user with described target video segmentation.At this, video-on-demand service equipment 1 is by various Video segmentation instruments, Video segmentation softwares such as Video segmentation expert, Splitlt (video file Fast Segmentation), Boilsoft Video Splitter (Video segmentation device), be a plurality of target video segmentations with described target video file division, and with described target video segmentation according to its communication protocol of supporting, communication protocols such as HTTP, RTP, MMS, P2P is sent to user's portable terminal.Those skilled in the art will be understood that; above-mentioned mode, Video segmentation instrument and the communication protocol of target video segmentation of providing is only for giving an example; other existing or the mode that the target video segmentation is provided, Video segmentation instrument or the communication protocols that may occur from now on are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Preferably, video-on-demand service equipment 1 is constant work in step S401, step S402, step S403 and step S404.Particularly, in step S401, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal; In step S402, video-on-demand service equipment 1 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; In step S403, video-on-demand service equipment 1 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; In step S404, video-on-demand service equipment 1 provides described target video file to described portable terminal.At this, it will be understood by those skilled in the art that " continuing " refers to that video-on-demand service equipment 1 requires to carry out providing of the obtaining of the obtaining of video on-demand request, initial video file, conversion and target video file according to the mode of operation of setting or adjust in real time respectively in step S401, step S402, step S403 and step S404, until this video-on-demand service equipment 1 stops to obtain user's video on-demand request in a long time.
In a preferred embodiment of process shown in Figure 4, in step S401, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal; In step S402, video-on-demand service equipment 1 is according to the video association attributes of described video on-demand request and described portable terminal, and the search Video Reservoir is to obtain corresponding initial video file; In step S403, video-on-demand service equipment 1 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; In step S404, video-on-demand service equipment 1 provides described target video file to described portable terminal.
Wherein, in step S402, video-on-demand service equipment 1 is according to one or more search the in the video association attributes of user's video on-demand request and customer mobile terminal, to obtain the initial video file identical or close with these video association attributes parts of this portable terminal.In step S403, video-on-demand service equipment 1 is according to other and this inconsistent video association attributes of initial video file of this portable terminal, this initial video file is carried out corresponding conversion, to obtain the target video file corresponding with the video association attributes of this portable terminal.
For example, in step S401, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal; In step S402, video-on-demand service equipment 1 is according to the screen resolution of this video on-demand request and this portable terminal, the media file format of supporting, in Video Reservoir, search for, obtain initial video files identical from this mobile terminal screen resolution but that media file format is different; In step S403, the media file format that video-on-demand service equipment 1 is supported according to this portable terminal carries out format conversion to this initial video file, to obtain corresponding target video file; In step S404, video-on-demand service equipment 1 is sent to this portable terminal with this target video file.
Those skilled in the art will be understood that; the above-mentioned mode of initial video file of obtaining is only for giving an example; other existing or modes of obtaining the initial video file that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Preferably, in step S402, also according to user's video on-demand request, in conjunction with address information and the video association attributes of customer mobile terminal, the search Video Reservoir is to obtain corresponding initial video file for video-on-demand service equipment 1.
For example, video-on-demand service equipment 1 comprises the server cluster based on CDN (content distributing network), the central server of this CDN is according to the address information of portable terminal, user's video on-demand request is redirected to the nearest server of this this portable terminal of CDN middle distance, this server is according to the screen resolution of this video on-demand request and this portable terminal, the media file format of supporting, in the Video Reservoir of this server, search for, obtain initial video files identical from this mobile terminal screen resolution but that media file format is different; The media file format that this server is supported according to this portable terminal carries out format conversion to this initial video file, obtaining corresponding target video file, and this target video file is sent to this portable terminal.
Those skilled in the art also will be understood that; the above-mentioned mode of initial video file of obtaining is only for giving an example; other existing or modes of obtaining the initial video file that may occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Fig. 5 is method flow diagram in accordance with a preferred embodiment of the present invention, and a kind of video request-program process is shown.Particularly, in step S501, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal; In step S502, video-on-demand service equipment 1 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; In step S505, video-on-demand service equipment 1 obtains the video association attributes of described portable terminal; In step S503, video-on-demand service equipment 1 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; In step S504, video-on-demand service equipment 1 provides described target video file to described portable terminal.
Wherein, among Fig. 5 video-on-demand service equipment 1 in step S501, step S502, step S503 and step S504 among performed operation and Fig. 4 video-on-demand service equipment 1 performed operation in step S401, step S402, step S403 and step S404 identical or basic identical, for simplicity's sake, be contained in this with way of reference, repeat no more.
In step S505, video-on-demand service equipment 1 obtains the video association attributes of customer mobile terminal.At this, the mode that video-on-demand service equipment 1 obtains described video association attributes includes but not limited to:
1) the video association attributes of reception user's portable terminal transmission, at this, this video association attributes can be that portable terminal initiatively sends to video-on-demand service equipment 1, also can be that portable terminal answers the query requests of video-on-demand service equipment 1 to its transmission.For example, portable terminal is when sending video on-demand request to video-on-demand service equipment 1, send the video association attributes of this portable terminal to this video-on-demand service equipment 1, provide the target video file corresponding with its video association attributes to be used for this video-on-demand service equipment 1 to it, correspondingly, this video-on-demand service equipment 1 receives the video association attributes of this portable terminal.And for example, video-on-demand service equipment 1 receives user's video on-demand request, and sends video association attributes query requests to this user's portable terminal, receives the video association attributes that this portable terminal returns.
2) according to user's video on-demand request, obtain the video association attributes of customer mobile terminal, concrete mode includes but not limited to:
A) resolve user's video on-demand request, extract described video association attributes from the relevant field of this video on-demand request.For example, portable terminal sends video on-demand request to video-on-demand service equipment 1, and writes the video association attributes of this portable terminal in the respective field in packet header of the packet that comprises this video on-demand request; This video-on-demand service equipment 1 receives and resolves the packet that this comprises user's video on-demand request, extracts the video association attributes of this portable terminal from the respective field in its packet header.
B) according to user's video on-demand request, obtain the identification information of customer mobile terminal, according to described identification information, the inquiry terminal attribute library is to obtain the video association attributes of customer mobile terminal.Particularly, video-on-demand service equipment 1 is resolved user's video on-demand request, extract the identification information of customer mobile terminal from the relevant field of this video on-demand request, according to this identification information, the inquiry terminal attribute library, obtain the video association attributes of customer mobile terminal, wherein, described terminal attribute storehouse can be that video-on-demand service equipment 1 self is stored, the Virtual network operator that also can be portable terminal provides, and can also be that other third party devices that store the terminal attribute of portable terminal provide.For example, portable terminal sends video on-demand request to video-on-demand service equipment 1, and writes the identification information of this portable terminal in the packet header of the packet that comprises this video on-demand request; Video-on-demand service equipment 1 receives and resolves the packet that this comprises user's video on-demand request, from the respective field in its packet header, extract the identification information of this portable terminal, and inquire about the terminal attribute storehouse that the Virtual network operator of this portable terminal provides according to this identification information, thereby obtain the video association attributes of this portable terminal.
Those skilled in the art will be understood that; above-mentioned mode and the terminal attribute storehouse that obtains the video association attributes of portable terminal only is for example; the mode of other existing or video association attributeses that obtain portable terminal that may occur from now on or terminal attribute storehouse are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
Need to prove, those skilled in the art will be understood that, video-on-demand service equipment 1 obtains the video association attributes of customer mobile terminal in step S505 operation obtain in step S502 with it and the operation of the initial video file that user's order request is corresponding between do not have strict ordinal relation, the operation that video-on-demand service equipment 1 obtains the video association attributes of customer mobile terminal can be obtained with the operation of the corresponding initial video file of user's order request with it and be carried out simultaneously, perhaps carries out before or after it obtains the operation of described initial video file.
Fig. 6 is the method flow diagram of another preferred embodiment according to the present invention, and a kind of video request-program process is shown.Particularly, in step S601, video-on-demand service equipment 1 obtains the video on-demand request that the user sends via portable terminal; In step S602, video-on-demand service equipment 1 is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request; In step S606, video-on-demand service equipment 1 provides the correlation attribute information of described initial video file to described portable terminal; In step S605, video-on-demand service equipment 1 is received from the video association attributes of the described portable terminal corresponding with described correlation attribute information of described portable terminal transmission; In step S603, video-on-demand service equipment 1 carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes; In step S604, video-on-demand service equipment 1 provides described target video file to described portable terminal.
Wherein, among Fig. 6 video-on-demand service equipment 1 in step S601, step S602, step S603 and step S604 among performed operation and Fig. 4 video-on-demand service equipment 1 performed operation in step S401, step S402, step S403 and step S404 identical or basic identical, for simplicity's sake, be contained in this with way of reference, repeat no more.
In step S606, video-on-demand service equipment 1 provides portable terminal to the user with the correlation attribute information of its initial video file that obtains in step S602.At this, described correlation attribute information includes but not limited to any applicable to the described initial video file of the present invention attribute information corresponding with the video association attributes of customer mobile terminal, the media file format of all as described initial video files, code check, resolution etc.Video-on-demand service equipment 1 provides the mode of described correlation attribute information to include but not limited to: 1) with described correlation attribute information one by one or once all push to user's portable terminal; 2) with in the described correlation attribute information partly or entirely based on page technology, such as ASP, JSP, PHP etc., generate the correlation attribute information page of initial video file, a) with the portable terminal of this page push to the user, perhaps b) URL of this page is pushed to user's portable terminal, the correlation attribute information page of the initial video file that is pointed to via this URL of its mobile terminal accessing by the user.Those skilled in the art will be understood that; the correlation attribute information of above-mentioned initial video file and mode that described correlation attribute information is provided are only for for example; the correlation attribute information of other initial video files existing or that may occur from now on or mode that described correlation attribute information is provided are as applicable to the present invention; also should be included in the protection range of the present invention, and be contained in this with way of reference.
In step S605, video-on-demand service equipment 1 is received from the video association attributes of this corresponding portable terminal of the correlation attribute information with the initial video file that user's portable terminal sends.For example, in step S601, video-on-demand service equipment 1 obtains user's video on-demand request; In step S602, video-on-demand service equipment 1 is according to this video on-demand request, and the search Video Reservoir is to obtain corresponding initial video file; In step S606, video-on-demand service equipment 1 is sent to the correlation attribute information such as the media file format of these initial video files, code check, resolution this user's portable terminal, this portable terminal is according to the correlation attribute information of these initial video files, scan its video association attributes tabulation, determine that media file format is not complementary, and the media file format of its support is sent to video-on-demand service equipment 1; In step S605, video-on-demand service equipment 1 receives the media file format that this portable terminal is supported; In step S603, video-on-demand service equipment 1 carries out corresponding format conversion according to this media file format to this initial video file, to obtain corresponding target video file; In step S604, the target video file after video-on-demand service equipment 1 will be changed provides to this portable terminal.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and in the situation that do not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to be included in the present invention dropping on the implication that is equal to important document of claim and all changes in the scope.Any Reference numeral in the claim should be considered as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " word, and odd number is not got rid of plural number.A plurality of unit of stating in system's claim or device also can be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.
Claims (20)
1. VOD method, wherein, the method may further comprise the steps:
A obtains the video on-demand request that the user sends via portable terminal;
B is according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request;
C carries out corresponding conversion according to the video association attributes of described portable terminal to described initial video file, to obtain the target video file corresponding with described video association attributes;
D provides described target video file to described portable terminal.
2. method according to claim 1, wherein, described step b also comprises:
-according to the address information of described video on-demand request and described portable terminal, search for described Video Reservoir, to obtain described initial video file.
3. method according to claim 1 and 2, wherein, the method also comprises:
X obtains described video association attributes.
4. method according to claim 3, wherein, described step x also comprises:
-according to described video on-demand request, obtain described video association attributes.
5. method according to claim 4, wherein, described step x also comprises:
-according to described video on-demand request, obtain the identification information of described portable terminal;
-according to described identification information, the inquiry terminal attribute library is to obtain described video association attributes.
6. method according to claim 3, wherein, described step x also comprises:
-be received from the described video association attributes that described portable terminal sends.
7. method according to claim 6, wherein, the method also comprises:
-correlation attribute information of described initial video file is provided to described portable terminal;
Wherein, described step x also comprises:
-be received from the described video association attributes corresponding with described correlation attribute information that described portable terminal sends.
8. each described method in 6 according to claim 1, wherein, described step b also comprises:
-according to described video on-demand request and described video association attributes, search for described Video Reservoir, to obtain described initial video file.
9. each described method in 8 according to claim 1, wherein, described steps d also comprises:
-be a plurality of target video segmentations with described target video file division;
-described target video segmentation is provided to described portable terminal.
10. each described method in 9 according to claim 1, wherein, described video association attributes comprise following at least each:
-media file format that described portable terminal is supported;
The screen resolution of-described portable terminal;
The speed of the access network of-described portable terminal.
11. a video-on-demand service equipment, wherein, this equipment comprises:
The order request deriving means is used for obtaining the video on-demand request that the user sends via portable terminal;
The original document deriving means is used for according to described video on-demand request, and the search Video Reservoir is to obtain the initial video file corresponding with described video on-demand request;
The original document conversion equipment is used for the video association attributes according to described portable terminal, and described initial video file is carried out corresponding conversion, to obtain the target video file corresponding with described video association attributes;
The file destination generator is used for described target video file is provided to described portable terminal.
12. equipment according to claim 11, wherein, described original document deriving means also is used for:
-according to the address information of described video on-demand request and described portable terminal, search for described Video Reservoir, to obtain described initial video file.
13. according to claim 11 or 12 described equipment, wherein, this equipment also comprises:
The video attribute deriving means is used for obtaining described video association attributes.
14. equipment according to claim 13, wherein, described video attribute deriving means also is used for:
-according to described video on-demand request, obtain described video association attributes.
15. equipment according to claim 14, wherein, described video attribute deriving means also is used for:
-according to described video on-demand request, obtain the identification information of described portable terminal;
-according to described identification information, the inquiry terminal attribute library is to obtain described video association attributes.
16. equipment according to claim 13, wherein, described video attribute deriving means also is used for:
-be received from the described video association attributes that described portable terminal sends.
17. equipment according to claim 16, wherein, this equipment also comprises:
The file attribute generator is used for the correlation attribute information of described initial video file is provided to described portable terminal;
Wherein, described video attribute deriving means also is used for:
-be received from the described video association attributes corresponding with described correlation attribute information that described portable terminal sends.
18. each described equipment in 16 according to claim 11, wherein, described original document deriving means also is used for:
-according to described video on-demand request and described video association attributes, search for described Video Reservoir, to obtain described initial video file.
19. each described equipment in 18 according to claim 11, wherein, described file destination generator also is used for:
-be a plurality of target video segmentations with described target video file division;
-described target video segmentation is provided to described portable terminal.
20. each described equipment in 19 according to claim 11, wherein, described video association attributes comprise following at least each:
-media file format that described portable terminal is supported;
The screen resolution of-described portable terminal;
The speed of the access network of-described portable terminal.
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