CN102263783A

CN102263783A - Method and device for transmitting media files based on time slices

Info

Publication number: CN102263783A
Application number: CN201110159253XA
Authority: CN
Inventors: 曹铮
Original assignee: Shanghai Synacast Media Technology Co Ltd
Current assignee: Shanghai Synacast Media Technology Co Ltd
Priority date: 2011-06-14
Filing date: 2011-06-14
Publication date: 2011-11-30

Abstract

The invention provides a method and device for transmitting media files based on time slices. Network equipment receives a media file access request which is sent by a user by virtue of user equipment to acquire file access parameters and media files in corresponding time slices from a media file library, and the media files are sent to the user equipment; the user equipment acquires an operation of the user for dragging a play window of the media files; according to the dragging operation, the media files in the corresponding time slices are acquired; and the media files are organized and played. Compared with the prior art, the method and device for transmitting the media files based on the time slices can be used for transmitting the media files which are segmented according to time on the basis of simple standard network protocols such as an HTTP (hypertext transfer protocol), an FTP (file transfer protocol) and the like, thus the method and the device are convenient to realize and expand, and easy to maintain and deploy.

Description

A kind of method and apparatus that is used for based on time slice transmission medium file

Technical field

The present invention relates to the media file transmission technique field, relate in particular to a kind of technology that is used for based on time slice transmission medium file.

Background technology

At present, streaming media transmission technique is adopted in the transmission of media file more, this just requires all devices in the transmission system all to support the related protocol that Streaming Media transmits, as RTSP, RSVP or RTCP, increased the deployment cost and the operation cost of transmission system, also made simultaneously and face adverse conditions with the compatibility of the transmission system that adopts other host-host protocols.

In order to address the above problem, many in the prior art media file is carried out cutting according to data volume, so that the media file after the cutting can carry out transfer of data by communication protocols such as http, ftp.But, under present pandemic Streaming Media dynamic code rate technology (VBR) background, the variable bit rate characteristic of this technology makes the big or small random fluctuation of data sementation, be not easy to buffer management and data dispatch, and also can't satisfy according to the data sementation that data volume is carried out the resulting fixed size of cutting and to play synchronous requirement and follow-up service quality (QoS).

Therefore, how a kind of method that is used for based on time slice transmission medium file is provided, carry out transfer of data and can become one of present urgent problem by communication protocols such as http, ftp to satisfy in conjunction with the requirement of Streaming Media dynamic code rate technology (VBR).

Summary of the invention

The purpose of this invention is to provide a kind of method and apparatus that is used for based on time slice transmission medium file.

According to an aspect of the present invention, provide a kind of and be used for method based on time slice transmission medium file at network equipment end, wherein, this method may further comprise the steps:

A receives the media file access request that the user sends via subscriber equipment;

B obtains with the corresponding file of described media file access request and gets parms;

C gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file;

D is sent to described subscriber equipment with described media file.

According to another aspect of the present invention, also provide a kind of and be used for obtaining based on time slice the method for media file at the subscriber equipment end, wherein, this method may further comprise the steps:

A obtains the drag operation of user to the playback of media files window;

B obtains the media file with the corresponding time slice of described drag operation according to described drag operation;

The C tissue is also play described media file.

According to an aspect of the present invention, provide a kind of network equipment that is used for based on time slice transmission medium file, wherein, this network equipment comprises:

Receiving system is used to receive the media file access request that the user sends via subscriber equipment;

Parameter obtaining device is used to obtain with the corresponding file of described media file access request and gets parms;

The file deriving means is used for getting parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file;

Dispensing device is used for described media file is sent to described subscriber equipment.

According to another aspect of the present invention, also provide a kind of subscriber equipment that is used for obtaining based on time slice media file, wherein, this subscriber equipment comprises:

The operation deriving means is used to obtain the drag operation of user to the playback of media files window;

The operation resolver is used for obtaining the media file with the corresponding time slice of described drag operation according to described drag operation;

Playing device is used for tissue and plays described media file.

According to a further aspect of the invention, a kind of system that is used for based on time slice transmission medium file also is provided, wherein, this system comprise as described above according to one aspect of the invention be used for based on the network equipment of time slice transmission medium file and as described above according to a further aspect of the present invention be used for subscriber equipment based on time slice transmission medium file.

Compared with prior art, the present invention is based on time slice transmission medium file, by the simple type identifier procotol, transmit, be convenient to realize and expansion, be easy to simultaneously safeguard and dispose as http, ftp etc. for the media file that carries out cutting by the time.Further, the user based on drag operation carry out select the time function such as broadcast also be based on the time, with the media file that carries out cutting by the time is unit, its minimum drags the duration that time precision is the media file of time slice, can satisfy and play synchronous requirement and follow-up service quality (QoS).

Description of drawings

By reading the detailed description of doing with reference to the following drawings that non-limiting example is done, it is more obvious that other features, objects and advantages of the present invention will become:

Fig. 1 illustrates the schematic diagram based on the network equipment of time slice transmission medium file of being used for according to one aspect of the invention;

Fig. 2 illustrates being used for based on the network equipment of time slice transmission medium file and the schematic diagram of subscriber equipment in accordance with a preferred embodiment of the present invention;

Fig. 3 illustrates being used for based on the network equipment of time slice transmission medium file and the schematic diagram of subscriber equipment according to another preferred embodiment of the present invention;

Fig. 4 illustrates according to a further aspect of the present invention the network equipment and is used for method flow diagram based on time slice transmission medium file;

The network equipment and subscriber equipment that Fig. 5 illustrates in accordance with a preferred embodiment of the present invention cooperate to realize being used for method flow diagram based on time slice transmission medium file;

Fig. 6 illustrates according to the network equipment of another preferred embodiment of the present invention and subscriber equipment and cooperates the method flow diagram of realizing being used for based on time slice transmission medium file.

Same or analogous Reference numeral is represented 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 the network equipment that is used for based on time slice transmission medium file is shown.Wherein, the network equipment 1 comprises receiving system 11, parameter obtaining device 12, file deriving means 13 and dispensing device 14.Particularly, the receiving system 11 of the network equipment 1 receives the media file access request that the user sends via subscriber equipment 2; Subsequently, parameter obtaining device 12 is obtained with the corresponding file of described media file access request and is got parms; Then, file deriving means 13 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file; Subsequently, dispensing device 14 is sent to subscriber equipment 2 with described media file.At this, the network equipment 1 includes but not limited to network host, single network server, a plurality of webserver collection or based on the set of computers of cloud computing.And subscriber equipment 2 can be anyly can carry out man-machine interaction and the electronic product that can communicate by letter with the network equipment 1, for example computer, mobile phone, PDA, palmtop PC PPC, panel computer, set-top box or IPTV etc. by modes such as keyboard, mouse, touch pad, remote controller or hand-written equipment with the user.Those skilled in the art will be understood that the above-mentioned network equipment 1 and subscriber equipment 2 only are for example; other network equipments existing or that may occur from now on or subscriber equipment 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.

More specifically, receiving system 11 receives the media file access request that the user sends via subscriber equipment 2.Particularly, receiving system 11 communication mode by appointment as communication protocols such as http, https, ftp, receives the media file access request that the user sends via subscriber equipment 2.For example, the user is undertaken alternately by mouse and subscriber equipment 2, and the video file of on the user interface that subscriber equipment 2 provides, selecting hope to watch, subscriber equipment 2 sends media file access request by http communication protocol to the network equipment 1 according to this user's selection operation; Correspondingly, the receiving system 11 of the network equipment 1 is received from this media file access request that subscriber equipment 2 sends by http communication protocol.Those skilled in the art will be understood that above-mentioned transmission and receiving media file access request mode are only for giving an example; other transmissions existing or that may occur from now on or receiving media file access request mode 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.

Subsequently, parameter obtaining device 12 is obtained with the corresponding file of described media file access request and is got parms.Particularly, the media file access request that parameter obtaining device 12 receives according to receiving system 11, in conjunction with such as the network bandwidth of subscriber equipment 2, this user's history access record, this user's preference setting, the information such as media file of the perhaps last time slice that sends, obtain with the corresponding file of this media file access request and get parms, such as the code check of media file, the time slice information of media file.At this, parameter obtaining device 12 is obtained the network bandwidth of subscriber equipment 2, this user's history access record, this user's preference setting and the information such as media file of the last time slice that sends by such as log information recordings such as the daily record of inquiry media file access, user access logses.For example, receiving system 11 is received from the media file access request that subscriber equipment 2 sends, parameter obtaining device 12 is resolved the network bandwidth of the relevant field acquisition subscriber equipment 2 of this media file access request, and, obtain code check with the corresponding media file of this media file access request according to the network bandwidth-code check table of comparisons.And for example, the user via subscriber equipment 2 logging in network equipment 1 after, parameter obtaining device 12 is obtained this user's history access record and this user's preference setting from the user information database of the network equipment 1, as the code check of the code check of the media file of the historical visit of this user, media file that this user preference is watched etc., and the code check of determining with the corresponding media file of this media file access request is set according to this user's history access record or this user's preference.For another example, when parameter obtaining device 12 is determined subscriber equipment 2 last visits from the access log of the network equipment 1, be sent to the media file of the time slice of subscriber equipment 2 at last, " 00:35:10-00:35:15 " time slice as film " fatal companion ", and determine the time slice information of the media file that this visit is corresponding according to this time slice, as " 00:35:16-00:35:20 " time slice of film " fatal companion " and time slice afterwards thereof.Those skilled in the art will be understood that above-mentioned file gets parms and obtain manner only is for example; other files existing or that may occur from now on get parms or its obtain manner 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.

Then, file deriving means 13 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file.Particularly, the media file access request that file deriving means 13 receives according to receiving system 11, the file that incorporating parametric deriving means 12 obtains gets parms, and obtains from the media file storehouse of the network equipment 1 or third party device and the get parms media file of corresponding time slice of this media file access request and this document.For example, receiving system 11 is received from the media file access request that subscriber equipment 2 sends, parameter obtaining device 12 is resolved the network bandwidth of the relevant field acquisition subscriber equipment 2 of this media file access request, and according to the network bandwidth-code check table of comparisons, obtain code check with the corresponding media file of this network bandwidth, file deriving means 13 is determined corresponding media file name according to this media file access request, as " fatal companion ", and in conjunction with this code check, the application programming interfaces (API) that provide by the third party device that stores the media file storehouse, send corresponding media file to this third party device and obtain request, receive that this third party device returns obtain at this media file library inquiry obtain the media file of the corresponding time slice of request with this media file.Preferably, if this media file access request comprises the sign of media file, as file name, then file deriving means 13 obtains the media file of pairing all time slices of this document title; If this media file access request comprises the sign of media file and specific time slice information, then file deriving means 13 obtains pairing this special time segmentation of this sign and reaches the media file of time slice thereafter.Those skilled in the art will be understood that the above-mentioned mode of media file of obtaining is only for giving an example; other existing or modes of obtaining media file 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.

Subsequently, dispensing device 14 is sent to subscriber equipment 2 with described media file.Particularly, dispensing device 14 communication mode by appointment, as communication protocols such as http, https, ftp, the media file that file deriving means 13 is obtained is sent to subscriber equipment 2.For example, file deriving means 13 obtains the media file of pairing all time slices of title of media file, dispensing device 14 is sent to subscriber equipment 2 according to the zero-time of these media files in proper order by http communication protocol, for example, when the network bandwidth of subscriber equipment 2 is enough big, the network bandwidth of supposing subscriber equipment 2 is 4M, and the bandwidth of the code check correspondence of media file is 2M, then dispensing device 14 with these media files according to corresponding zero-time, media file that zero-time is continuous order or the parallel subscriber equipment 2 that is sent to.Those skilled in the art will be understood that the mode of above-mentioned transmission media file is only for giving an example; the mode of other transmission media files existing or that may occur from now on 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, receiving system 11, parameter obtaining device 12, file deriving means 13 and dispensing device 14 are constant work.Particularly, receiving system 11 receives the media file access request that the user sends via subscriber equipment 2; Subsequently, parameter obtaining device 12 is obtained with the corresponding file of described media file access request and is got parms; Then, file deriving means 13 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file; Subsequently, dispensing device 14 is sent to subscriber equipment 2 with described media file.At this, it will be understood by those skilled in the art that " continuing " is meant that receiving system 11, parameter obtaining device 12, file deriving means 13 and the dispensing device 14 of the network equipment 1 require to carry out the reception of media file access request respectively according to the mode of operation of setting or adjust in real time, file is getparms to be obtained, obtaining of media file, and the transmission of media file, stop in a long time sending the media file access request until subscriber equipment 2 to the network equipment 1.

Preferably, parameter obtaining device 12 obtain the operation getparms of described file based on but be not limited to, below at least each:

1) network bandwidth of subscriber equipment 2;

2) this user's history access record;

3) this user's preference setting;

4) media file of the time slice that sends at last.

Particularly, 1) network bandwidth of subscriber equipment 2 comprises the configured bandwidth of subscriber equipment 2 and the current available bandwidth of subscriber equipment 2, wherein, the configured bandwidth of subscriber equipment 2 is during to its log on service, to be whole available bandwidths of subscriber equipment 2 configurations at subscriber equipment 2 by the Virtual network operator of subscriber equipment 2; The current available bandwidth of subscriber equipment 2 is subscriber equipmenies 2 when the network equipment 1 request media file, this available bandwidth of communicating by letter between subscriber equipment 2 and the network equipment 1.At this, the mode that parameter obtaining device 12 is obtained the network bandwidth of subscriber equipment 2 includes but not limited to: its configured bandwidth is inquired about to its Virtual network operator in the IP address according to subscriber equipment 2; From the media file access request of subscriber equipment 2, extract its network bandwidth; Access log according to the IP address lookup network equipment 1 of subscriber equipment 2 obtains the code check that history is sent to the media file of subscriber equipment 2, thereby determines its corresponding bandwidth.Those skilled in the art will be understood that the above-mentioned mode of obtaining the network bandwidth of subscriber equipment only is for example; the mode of other existing or network bandwidths that obtain subscriber equipment that may occur from now on 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.

2) this user's history access record includes but not limited to the code check of the media file of the historical visit of this user, the speed of download of the media file of the historical visit of this user, the pairing time slice information of media file of the last visit of this user.For example, the user via subscriber equipment 2 logging in network equipment 1 after, parameter obtaining device 12 can be inquired about the history access record of obtaining this user by this user's ID from the user information database of the network equipment 1.And for example, the relevant field of the media file access request that sends via subscriber equipment 2 from the user of parameter obtaining device 12 extracts the pairing time slice information of this media file of the last visit of this user.Those skilled in the art will be understood that above-mentioned user's history access record and obtain manner thereof only are for example; other users' existing or that may occur from now on history access record and obtain manner thereof 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.

3) setting of the time slice of this user's the preference setting setting, this user that include but not limited to the code check of the media file that this user watches its hope media file that its hope is watched, this user are to being provided with of current available bandwidth etc.For example, the user carries out the preference setting operation via subscriber equipment 2, be provided with and this user is provided with current available bandwidth as the code check of media file that its hope is watched, subscriber equipment 2 is sent to the network equipment 1 with this preference setting, the network equipment 1 is provided with storage and user information database with this preference, parameter obtaining device 12 is by this user's ID or this user information database of IP address lookup of subscriber equipment 2, the preference setting of obtaining this user.Those skilled in the art will be understood that above-mentioned user's preference setting and obtain manner thereof only are for example; other users' existing or that may occur from now on preference setting and obtain manner thereof 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.

When 4) media file of the time slice that sends at last comprises subscriber equipment 2 last visits, the media file of the time slice that the network equipment 1 sends to subscriber equipment 2 at last, perhaps in subscriber equipment 2 these access process, before the network bandwidth shake incident of subscriber equipment 2, the media file of the time slice that the network equipment 1 sends to subscriber equipment 2 at last.For example, parameter obtaining device 12 from the access log of the network equipment 1 according to the IP address of user's ID or subscriber equipment 2, when this user or subscriber equipment 2 last visits are obtained in inquiry, dispensing device 14 is to the media file of the subscriber equipment 2 last time slices that send, " 00:35:10-00:35:15 " time slice as film " fatal companion ", code check is 1.6M, file deriving means 13 determines that its media file that will obtain is " 00:35:16-00:35:20 " time slice of film " fatal companion " and time slice afterwards thereof in view of the above, and code check still is 1.6M.And for example, subscriber equipment 2 writes the time slice information of its last received media file the relevant field of corresponding media file access request, and this media file access request is sent to the network equipment 1, the receiving system 11 of the network equipment 1 receives this media file access request, parameter obtaining device 12 is extracted the time slice information of subscriber equipment 2 last received media files from the relevant field of this media file access request, and obtains the media file of the dispensing device 14 last time slices that send according to this media file access request and this time slice information.Those skilled in the art will be understood that the mode of media file of the above-mentioned time slice that obtains last transmission is only for for example; the mode of the media file of other existing or time slices that obtain last transmission that may occur from now on 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.

More preferably, parameter obtaining device 12 is obtained the network bandwidth of described file operation getparms based on subscriber equipment 2; Parameter obtaining device 12 is also obtained the network bandwidth shake incident of subscriber equipment 2; According to described network bandwidth shake incident, determine the described network bandwidth.Particularly, parameter obtaining device 12 is obtained and the network bandwidth of the corresponding file of media file access request operation getparms based on subscriber equipment 2, parameter obtaining device 12 is also obtained the network bandwidth shake incident of subscriber equipment 2, such as the speed of download of media file, transmitting time etc., according to this (a bit) network bandwidth shake incident, determine the network bandwidth of subscriber equipment 2.For example, when parameter obtaining device 12 is obtained with the operation getparms of the corresponding file of media file access request based on the network bandwidth of subscriber equipment 2, parameter obtaining device 12 is also according to the variation of the speed of download of media file, obtain the network bandwidth shake incident of subscriber equipment 2, as the speed of downloading is reduced to 13k from 130k, according to this network bandwidth shake incident, determine the network bandwidth of subscriber equipment 2, as reducing to 512k from 2M, the code check of corresponding media file is also reduced to 400k from 1.6M, supposed before this network bandwidth shake incident, the media file time corresponding that dispensing device 14 sends is segmented into 10-15S, the corresponding network bandwidth is 2M, corresponding code rate is 1.6M, and then after this network bandwidth shake incident, the media file time corresponding that dispensing device 14 sends is segmented into 16-20S, the corresponding network bandwidth is 512k, and corresponding code rate is 400k.And for example, when parameter obtaining device 12 is obtained with the operation getparms of the corresponding file of media file access request based on the network bandwidth of subscriber equipment 2, parameter obtaining device 12 is also according to the variation of the speed of download of media file, obtain the network bandwidth shake incident of subscriber equipment 2, and according to this network bandwidth shake incident, determine the network bandwidth of subscriber equipment 2, at this, the network bandwidth of subscriber equipment 2 determined to reduce step by step or increase step by step, suppose that media file carries out segmentation according to 5S, the corresponding relation of the network bandwidth and code check is respectively 2M-1.6M, 1M-800k, 512k-400k, before this network bandwidth shake incident, the media file time corresponding that dispensing device 14 sends is segmented into 10-15S, the corresponding network bandwidth and code check are 2M-1.6M, after this network bandwidth shake incident, the media file time corresponding that file deriving means 13 obtains is segmented into 16-20S, the corresponding network bandwidth and code check are 1M-800k, at this moment, parameter obtaining device 12 is obtained the network bandwidth shake incident of subscriber equipment 2 once more, then the media file time corresponding obtained of file deriving means 13 is segmented into 21-25S, and the corresponding network bandwidth and code check are 512k-400k.Those skilled in the art will be understood that the mode of the network bandwidth of above-mentioned network bandwidth shake incident and definite subscriber equipment only is for example; the mode of the network bandwidth of other network bandwidths existing or that may occur from now on shake incidents or definite subscriber equipment 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.

(with reference to Fig. 1) in a preferred embodiment, the network equipment 1 also comprises the cutting device (not shown), this cutting device carries out cutting according to the Preset Time segmentation parameter to the source media file in the described media file storehouse, to obtain described media file.Particularly, cutting device as 5S, carries out cutting to the source media file in the media file storehouse of the network equipment 1 or third party device, to obtain the media file of time slice to be visited according to the Preset Time segmentation parameter.For example, suppose that the Preset Time segmentation parameter is 5S, the network equipment 1 stores the media file storehouse, cutting device carries out cutting according to 5S to the source media file in this media file storehouse, to obtain the media file of time slice to be visited, as " fatal companion 1 ", " fatal companion 2 ", " fatal companion 3 " ..., its corresponding zero-time is " 00:00:01 ", " 00:00:06 ", " 00:00:11 " ....At this, name to the media file after the cutting, can directly name based on its zero-time, be 0-5S as time slice, and its title comprises " 00:00:01 ", as time slice is 6-10S, its title comprises " 00:00:06 ", for live source media file, and can also be based on absolute time name at that time, as " 2011-2-2119:17:00 ", then the title of the media file of next time slice comprises " 2011-2-21 19:17:06 ".Time slice information is write file name, and its benefit comprises: 1) simple and clear, need not resolve complicated media file format; 2) be convenient to download with broadcasting speed synchronously, the time point of intending the media file play directly can be converted to the filename of the media file of time slice to be downloaded; 3) be convenient to realize live, the media file of the time slice that all are live is named with absolute time, each user is the absolute time when live to begin to watch, go segmentation after the progressive download as " 2011-2-2119:17:00 " as the filename of the media file of initial time slice, be convenient to realize live synchronously; Realize time unifying when 4) being convenient between the media file of the corresponding code check of the different network bandwidths, switch.Those skilled in the art will be understood that the naming method of above-mentioned Preset Time segmentation parameter and media file is only for giving an example; the naming method of other Preset Time segmentation parameters existing or that may occur from now on or media 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.

At this, the setting of Preset Time segmentation parameter is based on the consideration of user's result of use and 2 aspects of transmission storage efficiency: 1) value of Preset Time segmentation parameter is exactly the minimum precision that the user plays when selecting, suppose that the Preset Time segmentation parameter is 5S, then the stepping accuracy of the F.F. of user's minimum or rewind down is 5S, because play when the user can only select according to the media file of time slice, F.F. is exactly the media file section of jumping to these time slices, plays when the value of Preset Time segmentation parameter then can influence selecting of user too greatly and experiences; 2) because the value of Preset Time segmentation parameter is the cutting of source media file, this value is too little certainly will to cause the quantity of media file of time slice too much, and the media file of single time slice is too small, reduces the distribution and the storage efficiency of the media file of these time slices simultaneously.

Need to prove, the step of cutting device cutting source media file both can be after receiving system 11 reception users have sent the media file access requests via subscriber equipment 2, based on this media file access request corresponding source media file is carried out cutting according to the Preset Time segmentation parameter, with obtain with this media file access request to corresponding media file; Also can not consider the media file access request of subscriber equipment 2, according to the Preset Time segmentation parameter source media file in the media file storehouse is carried out cutting, to obtain media file corresponding to the time slice to be visited of source media file, file deriving means 13 obtains the media file of corresponding time slice based on the media file access request of subscriber equipment 2.

Preferably, the network equipment 1 also comprises the adjusting device (not shown), and this adjusting device is according to the network bandwidth of subscriber equipment 2, determines and adjusts described Preset Time segmentation parameter.Particularly, adjusting device is determined and the corresponding Preset Time segmentation parameter of this network bandwidth according to the network bandwidth of subscriber equipment 2, and when this network bandwidth changes, is adjusted this Preset Time segmentation parameter thereupon.For example, suppose the network bandwidth of adjusting device according to subscriber equipment 2, as 1M, determine that corresponding Preset Time segmentation parameter is 5S, when the network bandwidth of subscriber equipment 2 increased, as 2M, adjusting device also was increased to 10S with the Preset Time segmentation parameter accordingly.Those skilled in the art will be understood that above-mentioned mode definite and adjustment Preset Time segmentation parameter only is for example; other existing or determining of may occurring from now on or the mode of adjusting the Preset Time segmentation parameter 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.

Fig. 2 is an equipment schematic diagram in accordance with a preferred embodiment of the present invention, and the network equipment and the subscriber equipment that are used for based on time slice transmission medium file are shown.Wherein, the network equipment 1 comprises receiving system 11 ', parameter obtaining device 12 ', file deriving means 13 ' and dispensing device 14 '; Subscriber equipment 2 comprises operation deriving means 21 ', operation resolver 22 ' and playing device 23 '.Particularly, the receiving system 11 ' of the network equipment 1 receives the media file access request that the user sends via subscriber equipment 2; Subsequently, parameter obtaining device 12 ' is obtained with the corresponding file of described media file access request and is got parms; Then, file deriving means 13 ' gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file; Subsequently, dispensing device 14 ' is sent to subscriber equipment 2 with described media file; Then, the operation deriving means 21 ' of subscriber equipment 2 obtains the drag operation of user to the playback of media files window; Subsequently, operation resolver 22 ' obtains the media file with the corresponding time slice of described drag operation according to described drag operation; Then, described media file is organized and play to playing device 23 '.

At this, among Fig. 2 among the content of the receiving system 11 ' of the network equipment 1, parameter obtaining device 12 ', file deriving means 13 ' and dispensing device 14 ' and Fig. 1 receiving system 11, parameter obtaining device 12, the file deriving means 13 of the network equipment 1 identical with the content of dispensing device 14, for simplicity's sake, repeat no more, be contained in this with way of reference.

The operation deriving means 21 ' of subscriber equipment 2 obtains the drag operation of user to the playback of media files window.Particularly, the drag operation that the operation deriving means 21 ' of subscriber equipment 2 carries out the playback of media files window by interactive modes such as mouse, touch-screen, trace balls by monitoring application programming interfaces (API) monitor user ', thus the drag operation of this user obtained to the playback of media files window.For example, subscriber equipment 2 is received from the media file that the network equipment 1 sends, the user carries out drag operation by mouse to the broadcast window of this media file, and operation deriving means 21 ' receives the drag operation of this user to this broadcast window according to the mouse event monitoring application programming interfaces (API) of correspondence.Those skilled in the art will be understood that the above-mentioned mode of drag operation of obtaining is only for giving an example; other existing or modes of obtaining drag operation 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.

Subsequently, operation resolver 22 ' obtains the media file with the corresponding time slice of described drag operation according to described drag operation.Particularly, operation resolver 22 ' is according to the drag operation that obtains of operation deriving means 21 ', by as the parsing of this drag operation obtained media file with the corresponding time slice of this drag operation.For example, operation deriving means 21 ' obtains the drag operation of user to the playback of media files window, operation resolver 22 ' is according to this drag operation, determine its corresponding time point information, and resolve this time point information and obtain the time corresponding segment information, thereby in the buffer memory of subscriber equipment 2, obtain the media file with this time slice information time corresponding segmentation, and the media file of time slice afterwards.Those skilled in the art will be understood that the obtain manner of the media file of above-mentioned time slice only is for example; the obtain manner of the media file of other time slices existing or that may occur from now on 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.

Then, described media file is organized and play to playing device 23 '.Particularly, these media files are organized and play to playing device 23 ' according to the media file of the time slice that obtains of operation resolver 22 '.For example, the drag operation time corresponding dot information of supposing the user carries out segmentation for " 00:47:23 " and media file according to 5S, operation resolver 22 ' is according to this drag operation, resolving and obtaining corresponding time slice information is " 00:47:20-00:47:25 ", obtain the media file of this time slice information time corresponding segmentation in view of the above, and the media file of time slice afterwards, playing device 23 ' is organized these media files according to the zero-time of the media file of these time slices, and according to the formats of these media files, play these media files.Those skilled in the art will be understood that the organizational form of the media file of above-mentioned time slice only is for example; the organizational form of the media file of other time slices existing or that may occur from now on 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.

Fig. 3 is the equipment schematic diagram according to another preferred embodiment of the present invention, and the network equipment and the subscriber equipment that are used for based on time slice transmission medium file are shown.Wherein, the network equipment 1 comprises receiving system 11 ", parameter obtaining device 12 ", file deriving means 13 " and dispensing device 14 "; Subscriber equipment 2 comprise the operation deriving means 21 ", the operation resolver 22 " and playing device 23 "; Wherein, operation resolver 22 " also comprise resolution unit 221 ", transmitting element 222 " and receiving element 223 ".Particularly, operation deriving means 21 " obtain the drag operation of user, operation resolver 22 via 2 pairs of playback of media files windows of subscriber equipment " resolution unit 221 " according to this drag operation, obtain and the corresponding time point information of this drag operation; Then, transmitting element 222 " according to this time point information; send corresponding media file access request to the network equipment 1; correspondingly; the receiving system 11 of the network equipment 1 " be received from this media file access request that subscriber equipment 2 sends, wherein, this media file access request and resolution unit 221 " time point information that obtains is corresponding; Subsequently, parameter obtaining device 12 " obtain with the corresponding file of this media file access request and get parms; Then, file deriving means 13 " from this media file access request, extract this time point information; and according to this time point information; obtain the time slice information of corresponding media file; according to this media file access request; incorporating parametric deriving means 12 " file that obtains gets parms, and this time slice information, obtains the media file of corresponding time slice from the media file storehouse of the network equipment 1 or third party device; Subsequently, dispensing device 14 " media file of these time slices is sent to subscriber equipment 2; correspondingly, the receiving element 223 of subscriber equipment 2 " be received from that the network equipment 1 sends based on transmitting element 222 " media file of these time slices of the media file access request that sends; Then, playing device 23 " tissue and play these media files.

For example, in the playing process of media file, the user carries out drag operation via the broadcast window of 2 pairs of these media files of subscriber equipment, the operation deriving means 21 of subscriber equipment 2 " obtain this drag operation; operation resolver 22 " resolution unit 221 " according to this drag operation; obtain and the corresponding time point information of this drag operation; as " 00:47:23 "; and find to download and the corresponding media file of this time point information as yet in the buffer memory of subscriber equipment 2; transmitting element 222 " according to this time point information, send corresponding media file access request to the network equipment 1, corresponding, the receiving system 11 of the network equipment 1 " receive this media file access request; Subsequently, parameter obtaining device 12 " obtain with the corresponding file of this media file access request and get parms; File deriving means 13 " this time point information of extraction from this media file access request; and according to this time point information; obtain the time slice information of corresponding media file; as " 00:47:20-00:47:25 ";, get parms in conjunction with file according to this media file access request, and this time slice information; from the media file storehouse of the network equipment 1, obtain the media file of this time slice information time corresponding segmentation, and the media file of time slice afterwards; Dispensing device 14 " these media files are sent to subscriber equipment 2, correspondingly, the receiving element 223 of subscriber equipment 2 " receive these media files; Then, playing device 23 " organize these media files according to corresponding time slice, and to the broadcast of decoding of these media files.

Preferably, resolution unit 221 " also according to described time point information, determine time slice information with the corresponding described media file of described time point information; Then, transmitting element 222 " according to described time slice information, send and the corresponding media file access request of described time slice information to the network equipment 1; Correspondingly, the receiving system 11 of the network equipment 1 " be received from the media file access request that subscriber equipment 2 sends, wherein, described media file access request is corresponding with the time slice information of described media file; Subsequently, file deriving means 13 " according to described media file access request, get parms in conjunction with described file, and described time slice information, from described media file storehouse, obtain described media file; Then, dispensing device 14 " described media file is sent to subscriber equipment 2, correspondingly, the receiving element 223 of subscriber equipment 2 " the media file that is received from that the network equipment 1 sends based on the time slice of described media file access request.

Particularly, resolution unit 221 " also according to resolution unit 221 " time point information that obtains, determine time slice information with the corresponding media file of this time point information; Transmitting element 222 ", send and the corresponding media file access request of this time slice information correspondingly, the receiving system 11 of the network equipment 1 according to this time slice information to the network equipment 1 " receive this media file access request; File deriving means 13 " according to this media file access request; incorporating parametric deriving means 12 " obtain file and get parms, and this time slice information, from the media file storehouse of the network equipment 1 or third party device, obtain the media file of corresponding time slice; Dispensing device 14 " these media files are sent to subscriber equipment 2, correspondingly, the receiving element 223 of subscriber equipment 2 " receive these media files.

For example, in the playing process of media file, the user carries out drag operation via the broadcast window of 2 pairs of these media files of subscriber equipment, the operation deriving means 21 of subscriber equipment 2 " obtain this drag operation; The operation resolver 22 " resolution unit 221 " according to this drag operation, obtain and the corresponding time point information of this drag operation, as " 00:47:23 ", and resolve this time point information, obtain corresponding time slice information, as " 00:47:20-00:47:25 ",, download and the corresponding media file of this time slice information as yet in the buffer memory of discovery subscriber equipment 2 according to this time slice information; Transmitting element 222 " according to this time slice information, send corresponding media file access request, corresponding, the receiving system 11 of the network equipment 1 to the network equipment 1 " receive this media file access request; Subsequently, parameter obtaining device 12 " obtain with the corresponding file of this media file access request and get parms; File deriving means 13 " this time slice information of extraction from this media file access request; and according to this media file access request; get parms in conjunction with file; and this time slice information; from the media file storehouse of the network equipment 1, obtain the media file of this time slice information time corresponding segmentation, and the media file of time slice afterwards; Dispensing device 14 " these media files are sent to subscriber equipment 2, correspondingly, the receiving element 223 of subscriber equipment 2 " receive these media files; Then, playing device 23 " organize these media files according to corresponding time slice, and to the broadcast of decoding of these media files.

Fig. 4 is a method flow diagram according to a further aspect of the present invention, is illustrated in network equipment end and is used for process based on time slice transmission medium file.Particularly, in step S1, the network equipment 1 receives the media file access request that the user sends via subscriber equipment 2; Subsequently, in step S2, the network equipment 1 obtains with the corresponding file of described media file access request and gets parms; Then, in step S3, the network equipment 1 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file; Subsequently, in step S4, the network equipment 1 is sent to subscriber equipment 2 with described media file.At this, the network equipment 1 includes but not limited to network host, single network server, a plurality of webserver collection or based on the set of computers of cloud computing.And subscriber equipment 2 can be anyly can carry out man-machine interaction and the electronic product that can communicate by letter with the network equipment 1, for example computer, mobile phone, PDA, palmtop PC PPC, panel computer, set-top box or IPTV etc. by modes such as keyboard, mouse, touch pad, remote controller or hand-written equipment with the user.Those skilled in the art will be understood that the above-mentioned network equipment 1 and subscriber equipment 2 only are for example; other network equipments existing or that may occur from now on or subscriber equipment 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.

More specifically, in step S 1, the network equipment 1 receives the media file access request that the user sends via subscriber equipment 2.Particularly, in step S1, the network equipment 1 communication mode by appointment as communication protocols such as http, https, ftp, receives the media file access request that the user sends via subscriber equipment 2.For example, the user is undertaken alternately by mouse and subscriber equipment 2, and the video file of on the user interface that subscriber equipment 2 provides, selecting hope to watch, subscriber equipment 2 sends media file access request by http communication protocol to the network equipment 1 according to this user's selection operation; Correspondingly, the receiving system 11 of the network equipment 1 is received from this media file access request that subscriber equipment 2 sends by http communication protocol.Those skilled in the art will be understood that above-mentioned transmission and receiving media file access request mode are only for giving an example; other transmissions existing or that may occur from now on or receiving media file access request mode 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.

Subsequently, in step S2, the network equipment 1 obtains with the corresponding file of described media file access request and gets parms.Particularly, in step S2, the network equipment 1 is according to its media file access request that receives in step S1, in conjunction with such as the network bandwidth of subscriber equipment 2, this user's history access record, this user's preference setting, the information such as media file of the perhaps last time slice that sends, obtain with the corresponding file of this media file access request and get parms, such as the code check of media file, the time slice information of media file.At this, in step S2, the network equipment 1 obtains the network bandwidth of subscriber equipment 2, this user's history access record, this user's preference setting and the information such as media file of the last time slice that sends by such as log information recordings such as the daily record of inquiry media file access, user access logses.For example, in step S1, the network equipment 1 is received from the media file access request that subscriber equipment 2 sends; In step S2, the relevant field that the network equipment 1 is resolved this media file access request obtains the network bandwidth of subscriber equipment 2, and according to the network bandwidth-code check table of comparisons, obtains the code check with the corresponding media file of this media file access request.And for example, the user via subscriber equipment 2 logging in network equipment 1 after, the network equipment 1 obtains this user's history access record and this user's preference setting from its stored user information storehouse, as the code check of the code check of the media file of the historical visit of this user, media file that this user preference is watched etc., and the code check of determining with the corresponding media file of this media file access request is set according to this user's history access record or this user's preference.For another example, in step S 2, when the network equipment 1 is determined subscriber equipment 2 last visits from the access log of its storage, be sent to the media file of the time slice of subscriber equipment 2 at last, " 00:35:10-00:35:15 " time slice as film " fatal companion ", and determine the time slice information of the media file that this visit is corresponding according to this time slice, as " 00:35:16-00:35:20 " time slice of film " fatal companion " and time slice afterwards thereof.Those skilled in the art will be understood that above-mentioned file gets parms and obtain manner only is for example; other files existing or that may occur from now on get parms or its obtain manner 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.

Then, in step S3, the network equipment 1 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file.Particularly, in step S3, the network equipment 1 is according to its media file access request that receives in step S1, get parms in conjunction with its file that in step S2, obtains, from the media file storehouse of the network equipment 1 or third party device, obtain and the get parms media file of corresponding time slice of this media file access request and this document.For example, in step S1, the network equipment 1 is received from the media file access request that subscriber equipment 2 sends; In step S2, the relevant field that the network equipment 1 is resolved this media file access request obtains the network bandwidth of subscriber equipment 2, and according to the network bandwidth-code check table of comparisons, obtains the code check with the corresponding media file of this network bandwidth; In step S3, the network equipment 1 is determined corresponding media file name according to this media file access request, as " fatal companion ", and in conjunction with this code check, the application programming interfaces (API) that provide by the third party device that stores the media file storehouse, send corresponding media file to this third party device and obtain request, receive that this third party device returns obtain at this media file library inquiry obtain the media file of the corresponding time slice of request with this media file.Preferably, if this media file access request comprises the sign of media file, as file name, then in step S 3, the network equipment 1 obtains the media file of pairing all time slices of this document title; If this media file access request comprises the sign of media file and specific time slice information, then the network equipment 1 obtains pairing this special time segmentation of this sign and reaches the media file of time slice thereafter.Those skilled in the art will be understood that the above-mentioned mode of media file of obtaining is only for giving an example; other existing or modes of obtaining media file 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.

Subsequently, in step S4, the network equipment 1 is sent to subscriber equipment 2 with described media file.Particularly, in step S4, the network equipment 1 communication mode by appointment as communication protocols such as http, https, ftp, is sent to subscriber equipment 2 with its media file that obtains in step S3.For example, in step S3, the network equipment 1 obtains the media file of pairing all time slices of title of media file; In step S4, the network equipment 1 is sent to subscriber equipment 2 according to the zero-time of these media files in proper order by http communication protocol, for example, when the network bandwidth of subscriber equipment 2 is enough big, the network bandwidth of supposing subscriber equipment 2 is 4M, and the bandwidth of the code check correspondence of media file is 2M, then in step S4, the network equipment 1 with these media files according to corresponding zero-time, media file that zero-time is continuous order or the parallel subscriber equipment 2 that is sent to.Those skilled in the art will be understood that the mode of above-mentioned transmission media file is only for giving an example; the mode of other transmission media files existing or that may occur from now on 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, the network equipment 1 is constant work at step S1, step S2, step S3 and step S4.Particularly, in step S1, the network equipment 1 receives the media file access request that the user sends via subscriber equipment 2; Subsequently, in step S2, the network equipment 1 obtains with the corresponding file of described media file access request and gets parms; Then, in step S3, the network equipment 1 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file; Subsequently, in step S4, the network equipment 1 is sent to subscriber equipment 2 with described media file.At this, it will be understood by those skilled in the art that " continuing " is meant that the network equipment 1 requires to carry out the reception of media file access request respectively according to the mode of operation of setting or adjust in real time at step S1, step S2, step S3 and step S4, file is getparms to be obtained, obtaining of media file, and the transmission of media file, stop in a long time sending the media file access request until subscriber equipment 2 to the network equipment 1.

Preferably, obtain described in the described step S2 operation getparms of described file based on but be not limited to, below at least each:

1) network bandwidth of subscriber equipment 2;

2) this user's history access record;

3) this user's preference setting;

4) media file of the time slice that sends at last.

Particularly, 1) network bandwidth of subscriber equipment 2 comprises the configured bandwidth of subscriber equipment 2 and the current available bandwidth of subscriber equipment 2, wherein, the configured bandwidth of subscriber equipment 2 is during to its log on service, to be whole available bandwidths of subscriber equipment 2 configurations at subscriber equipment 2 by the Virtual network operator of subscriber equipment 2; The current available bandwidth of subscriber equipment 2 is subscriber equipmenies 2 when the network equipment 1 request media file, this available bandwidth of communicating by letter between subscriber equipment 2 and the network equipment 1.At this, the mode that the network equipment 1 obtains the network bandwidth of subscriber equipment 2 includes but not limited to: its configured bandwidth is inquired about to its Virtual network operator in the IP address according to subscriber equipment 2; From the media file access request of subscriber equipment 2, extract its network bandwidth; Access log according to the IP address lookup network equipment 1 of subscriber equipment 2 obtains the code check that history is sent to the media file of subscriber equipment 2, thereby determines its corresponding bandwidth.Those skilled in the art will be understood that the above-mentioned mode of obtaining the network bandwidth of subscriber equipment only is for example; the mode of other existing or network bandwidths that obtain subscriber equipment that may occur from now on 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.

2) this user's history access record includes but not limited to the code check of the media file of the historical visit of this user, the speed of download of the media file of the historical visit of this user, the pairing time slice information of media file of the last visit of this user.For example, the user via subscriber equipment 2 logging in network equipment 1 after, the network equipment 1 can be inquired about the history access record of obtaining this user by this user's ID from its stored user information storehouse.And for example, the relevant field of the media file access request that sends via subscriber equipment 2 from the user of the network equipment 1 extracts the pairing time slice information of this media file of the last visit of this user.Those skilled in the art will be understood that above-mentioned user's history access record and obtain manner thereof only are for example; other users' existing or that may occur from now on history access record and obtain manner thereof 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.

3) setting of the time slice of this user's the preference setting setting, this user that include but not limited to the code check of the media file that this user watches its hope media file that its hope is watched, this user are to being provided with of current available bandwidth etc.For example, the user carries out the preference setting operation via subscriber equipment 2, be provided with and this user is provided with current available bandwidth as the code check of media file that its hope is watched, subscriber equipment 2 is sent to the network equipment 1 with this preference setting, the network equipment 1 is provided with storage and user information database with this preference, and by this user's ID or this user information database of IP address lookup of subscriber equipment 2, the preference setting of obtaining this user.Those skilled in the art will be understood that above-mentioned user's preference setting and obtain manner thereof only are for example; other users' existing or that may occur from now on preference setting and obtain manner thereof 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.

When 4) media file of the time slice that sends at last comprises subscriber equipment 2 last visits, the media file of the time slice that the network equipment 1 sends to subscriber equipment 2 at last, perhaps in subscriber equipment 2 these access process, before the network bandwidth shake incident of subscriber equipment 2, the media file of the time slice that the network equipment 1 sends to subscriber equipment 2 at last.For example, the network equipment 1 from the access log of its storage according to the IP address of user's ID or subscriber equipment 2, when this user or subscriber equipment 2 last visits are obtained in inquiry, the network equipment 1 is to the media file of the subscriber equipment 2 last time slices that send, " 00:35:10-00:35:15 " time slice as film " fatal companion ", code check is 1.6M, the network equipment 1 determines that its media file that will obtain is " 00:35:16-00:35:20 " time slice of film " fatal companion " and time slice afterwards thereof in view of the above, and code check still is 1.6M.And for example, subscriber equipment 2 writes the time slice information of its last received media file the relevant field of corresponding media file access request, and this media file access request is sent to the network equipment 1, the network equipment 1 receives this media file access request, and extract the time slice information of subscriber equipment 2 last received media files from the relevant field of this media file access request, obtain its media file according to this media file access request and this time slice information to the subscriber equipment 2 last time slices that send.Those skilled in the art will be understood that the mode of media file of the above-mentioned time slice that obtains last transmission is only for for example; the mode of the media file of other existing or time slices that obtain last transmission that may occur from now on 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.

More preferably, obtain the network bandwidth of described file operation getparms described in the described step S2 based on subscriber equipment 2; In step S2, the network equipment 1 also obtains the network bandwidth shake incident of subscriber equipment 2; According to described network bandwidth shake incident, determine the described network bandwidth.Particularly, in step S2, the network equipment 1 obtains and the network bandwidth of the corresponding file of media file access request operation getparms based on subscriber equipment 2, the network equipment 1 also obtains the network bandwidth shake incident of subscriber equipment 2, such as the speed of download of media file, transmitting time etc., according to this (a bit) network bandwidth shake incident, determine the network bandwidth of subscriber equipment 2.For example, when the network equipment 1 obtains with the operation getparms of the corresponding file of media file access request based on the network bandwidth of subscriber equipment 2 in step S2, the network equipment 1 is also according to the variation of the speed of download of media file, obtain the network bandwidth shake incident of subscriber equipment 2, as the speed of downloading is reduced to 13k from 130k, according to this network bandwidth shake incident, determine the network bandwidth of subscriber equipment 2, as reducing to 512k from 2M, the code check of corresponding media file is also reduced to 400k from 1.6M, supposed before this network bandwidth shake incident, the media file time corresponding that the network equipment 1 sends is segmented into 10-15S, the corresponding network bandwidth is 2M, corresponding code rate is 1.6M, and then after this network bandwidth shake incident, the media file time corresponding that the network equipment 1 sends is segmented into 16-20S, the corresponding network bandwidth is 512k, and corresponding code rate is 400k.And for example, when the network equipment 1 obtains with the operation getparms of the corresponding file of media file access request based on the network bandwidth of subscriber equipment 2 in step S2, the network equipment 1 is also according to the variation of the speed of download of media file, obtain the network bandwidth shake incident of subscriber equipment 2, and according to this network bandwidth shake incident, determine the network bandwidth of subscriber equipment 2, at this, the network bandwidth of subscriber equipment 2 determined to reduce step by step or increase step by step, suppose that media file carries out segmentation according to 5S, the corresponding relation of the network bandwidth and code check is respectively 2M-1.6M, 1M-800k, 512k-400k, before this network bandwidth shake incident, the media file time corresponding that the network equipment 1 sends is segmented into 10-15S, the corresponding network bandwidth and code check are 2M-1.6M, after this network bandwidth shake incident, the media file time corresponding that the network equipment 1 obtains is segmented into 16-20S, the corresponding network bandwidth and code check are 1M-800k, at this moment, the network equipment 1 obtains the network bandwidth shake incident of subscriber equipment 2 once more, the media file time corresponding of then obtaining in view of the above is segmented into 21-25S, and the corresponding network bandwidth and code check are 512k-400k.Those skilled in the art will be understood that the mode of the network bandwidth of above-mentioned network bandwidth shake incident and definite subscriber equipment only is for example; the mode of the network bandwidth of other network bandwidths existing or that may occur from now on shake incidents or definite subscriber equipment 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.

(with reference to Fig. 4) in a preferred embodiment, this process also comprises step S5 (not shown), in step S5, the network equipment 1 carries out cutting according to the Preset Time segmentation parameter to the source media file in the described media file storehouse, to obtain described media file.Particularly, in step S5, the network equipment 1 as 5S, carries out cutting to the source media file in the media file storehouse of the network equipment 1 or third party device, to obtain the media file of time slice to be visited according to the Preset Time segmentation parameter.For example, suppose that the Preset Time segmentation parameter is 5S, the network equipment 1 stores the media file storehouse, in step S 5, the network equipment 1 carries out cutting according to 5S to the source media file in this media file storehouse, to obtain the media file of time slice to be visited, as " fatal companion 1 ", " fatal companion 2 ", " fatal companion 3 " ..., its corresponding zero-time is " 00:00:01 ", " 00:00:06 ", " 00:00:11 " ....At this, name to the media file after the cutting, can directly name based on its zero-time, be 0-5S as time slice, and its title comprises " 00:00:01 ", as time slice is 6-10S, its title comprises " 00:00:06 ", for live source media file, and can also be based on absolute time name at that time, as " 2011-2-2119:17:00 ", then the title of the media file of next time slice comprises " 2011-2-2119:17:06 ".Time slice information is write file name, and its benefit comprises: 1) simple and clear, need not resolve complicated media file format; 2) be convenient to download with broadcasting speed synchronously, the time point of intending the media file play directly can be converted to the filename of the media file of time slice to be downloaded; 3) be convenient to realize live, the media file of the time slice that all are live is named with absolute time, each user is the absolute time when live to begin to watch, go segmentation after the progressive download as " 2011-2-2119:17:00 " as the filename of the media file of initial time slice, be convenient to realize live synchronously; Realize time unifying when 4) being convenient between the media file of the corresponding code check of the different network bandwidths, switch.Those skilled in the art will be understood that the naming method of above-mentioned Preset Time segmentation parameter and media file is only for giving an example; the naming method of other Preset Time segmentation parameters existing or that may occur from now on or media 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.

Need to prove, the network equipment 1 carries out cutting source media file in step S5 operation both can receive after the user sends the media file access requests via subscriber equipment 2 at the step S1 network equipment 1, based on this media file access request corresponding source media file is carried out cutting according to the Preset Time segmentation parameter, with obtain with this media file access request to corresponding media file; Also can not consider the media file access request of subscriber equipment 2, according to the Preset Time segmentation parameter source media file in the media file storehouse is carried out cutting, to obtain media file corresponding to the time slice to be visited of source media file, the network equipment 1 obtains the media file of corresponding time slice in the media file access request of step S3 based on subscriber equipment 2.

Preferably, this process also comprises step S6 (not shown), and in step S6, the network equipment 1 is according to the network bandwidth of subscriber equipment 2, determines and adjusts described Preset Time segmentation parameter.Particularly, adjusting device is determined and the corresponding Preset Time segmentation parameter of this network bandwidth according to the network bandwidth of subscriber equipment 2, and when this network bandwidth changes, is adjusted this Preset Time segmentation parameter thereupon.For example, suppose that in step S6, the network equipment 1 is according to the network bandwidth of subscriber equipment 2, as 1M, determine that corresponding Preset Time segmentation parameter is 5S, when the network bandwidth of subscriber equipment 2 increases, as 2M, the network equipment 1 also is increased to 10S with the Preset Time segmentation parameter accordingly.Those skilled in the art will be understood that above-mentioned mode definite and adjustment Preset Time segmentation parameter only is for example; other existing or determining of may occurring from now on or the mode of adjusting the Preset Time segmentation parameter 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.

Fig. 5 is a method flow diagram in accordance with a preferred embodiment of the present invention, the network equipment and subscriber equipment is shown cooperate realizes being used for process based on time slice transmission medium file.Particularly, in step S 1 ', the network equipment 1 receives the media file access request that the user sends via subscriber equipment 2; Subsequently, in step S2 ', the network equipment 1 obtains with the corresponding file of described media file access request and gets parms; Then, in step S3 ', the network equipment 1 gets parms in conjunction with described file according to described media file access request, obtains from the media file storehouse and the get parms media file of corresponding time slice of described media file access request and described file; Subsequently, in step S4 ', the network equipment 1 is sent to subscriber equipment 2 with described media file; Then, in step S5 ', subscriber equipment 2 obtains the drag operation of user to the playback of media files window; Subsequently, in step S6 ', subscriber equipment 2 obtains the media file with the corresponding time slice of described drag operation according to described drag operation; Then, in step S7 ', subscriber equipment 2 tissues are also play described media file.

At this, the network equipment 1 network equipment 1 in the content of step S1 ', step S2 ', step S3 ' and step S4 ' and Fig. 4 is identical in the content of step S1, step S2, step S3 and step S4 among Fig. 5, for simplicity's sake, repeat no more, be contained in this with way of reference.

In step S5 ', subscriber equipment 2 obtains the drag operation of user to the playback of media files window.Particularly, in step S5 ', the drag operation that subscriber equipment 2 carries out the playback of media files window by interactive modes such as mouse, touch-screen, trace balls by monitoring application programming interfaces (API) monitor user ', thus the drag operation of this user obtained to the playback of media files window.For example, subscriber equipment 2 is received from the media file that the network equipment 1 sends, the user carries out drag operation by mouse to the broadcast window of this media file, and subscriber equipment 2 receives the drag operation of this user to this broadcast window according to the mouse event monitoring application programming interfaces (API) of correspondence.Those skilled in the art will be understood that the above-mentioned mode of drag operation of obtaining is only for giving an example; other existing or modes of obtaining drag operation 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.

Subsequently, in step S6 ', subscriber equipment 2 obtains the media file with the corresponding time slice of described drag operation according to described drag operation.Particularly, in step S6 ', subscriber equipment 2 is according to its drag operation that obtains in step S5 ', by as the parsing of this drag operation obtained media file with the corresponding time slice of this drag operation.For example, in step S5 ', subscriber equipment 2 obtains the drag operation of user to the playback of media files window; In step S6 ', subscriber equipment 2 is according to this drag operation, determine its corresponding time point information, and resolve this time point information and obtain the time corresponding segment information, thereby in the buffer memory of this subscriber equipment 2, obtain the media file with this time slice information time corresponding segmentation, and the media file of time slice afterwards.Those skilled in the art will be understood that the obtain manner of the media file of above-mentioned time slice only is for example; the obtain manner of the media file of other time slices existing or that may occur from now on 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.

Then, in step S7 ', subscriber equipment 2 tissues are also play described media file.Particularly, in step S7 ', these media files are organized and play to subscriber equipment 2 according to the media file of its time slice that obtains in step S6 '.For example, the drag operation time corresponding dot information of supposing the user carries out segmentation for " 00:47:23 " and media file according to 5S; In step S6 ', subscriber equipment 2 is according to this drag operation, resolving and obtaining corresponding time slice information is " 00:47:20-00:47:25 ", obtains the media file of this time slice information time corresponding segmentation in view of the above, and the media file of time slice afterwards; In step S7 ', subscriber equipment 2 is organized these media files according to the zero-time of the media file of these time slices, and according to the formats of these media files, play these media files.Those skilled in the art will be understood that the organizational form of the media file of above-mentioned time slice only is for example; the organizational form of the media file of other time slices existing or that may occur from now on 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.

Fig. 6 is the method flow diagram according to another preferred embodiment of the present invention, the network equipment and subscriber equipment is shown cooperate realizes being used for process based on time slice transmission medium file.Particularly, at step S5 " in, subscriber equipment 2 obtains the drag operation of user via 2 pairs of playback of media files windows of subscriber equipment; At step S61 " in, the resolution unit 221 of subscriber equipment 2 " according to this drag operation, obtain and the corresponding time point information of this drag operation; Then, at step S62 " in; subscriber equipment 2 is according to this time point information; send corresponding media file access request to the network equipment 1; correspondingly; the network equipment 1 is received from this media file access request that subscriber equipment 2 sends, wherein, this media file access request and resolution unit 221 " time point information that obtains is corresponding; Subsequently, at step S2 " in, subscriber equipment 2 obtains with the corresponding file of this media file access request and gets parms; Then, at step S3 " in; subscriber equipment 2 extracts this time point information from this media file access request; and according to this time point information; obtain the time slice information of corresponding media file, according to this media file access request, incorporating parametric deriving means 12 " file that obtains gets parms, and this time slice information, from the media file storehouse of the network equipment 1 or third party device, obtain the media file of corresponding time slice; Subsequently, at step S 63 " in, the network equipment 1 is sent to subscriber equipment 2 with the media file of these time slices, and correspondingly, subscriber equipment 2 is received from the media file of these time slices of the network equipment 1 transmission; Then, at step S7 " in, subscriber equipment 2 tissues are also play these media files.

For example, in the playing process of media file, the user carries out drag operation via the broadcast window of 2 pairs of these media files of subscriber equipment, at step S5 " in, subscriber equipment 2 obtains this drag operation; At step S61 " in, subscriber equipment 2 obtains and the corresponding time point information of this drag operation according to this drag operation, as " 00:47:23 ", and downloads and the corresponding media file of this time point information as yet in the buffer memory of discovery subscriber equipment 2; At step S62 " in, subscriber equipment 2 sends corresponding media file access request according to this time point information to the network equipment 1, and is corresponding, and the network equipment 1 receives this media file access request; Subsequently, at step S2 " in, the network equipment 1 obtains with the corresponding file of this media file access request and gets parms; At step S3 " in; the network equipment 1 extracts this time point information from this media file access request; and according to this time point information; obtain the time slice information of corresponding media file, as " 00:47:20-00:47:25 ", according to this media file access request; get parms in conjunction with file; and this time slice information, from the media file storehouse of this network equipment 1, obtain the media file of this time slice information time corresponding segmentation, and the media file of time slice afterwards; At step S63 " in, subscriber equipment 1 is sent to subscriber equipment 2 with these media files, and correspondingly, subscriber equipment 2 receives these media files; Then, at step S7 " in, subscriber equipment 2 is organized these media files according to corresponding time slice, and to the broadcast of decoding of these media files.

Preferably, at step S61 " in, subscriber equipment 2 is determined the time slice information with the corresponding described media file of described time point information also according to described time point information; Then, at step S62 " in, subscriber equipment 2 sends and the corresponding media file access request of described time slice information to the network equipment 1 according to described time slice information; Correspondingly, the network equipment 1 is received from the media file access request that subscriber equipment 2 sends, and wherein, described media file access request is corresponding with the time slice information of described media file; Subsequently, at step S3 " in, the network equipment 1 gets parms in conjunction with described file according to described media file access request, and described time slice information, obtains described media file from described media file storehouse; Then, at step S63 " in, the network equipment 1 is sent to subscriber equipment 2 with described media file, correspondingly, and the media file that subscriber equipment 2 is received from that the network equipment 1 sends based on the time slice of described media file access request.

Particularly, at step S61 " in, subscriber equipment 2 is determined the time slice information with the corresponding media file of this time point information also according to its time point information that obtains; At step S62 " in, subscriber equipment 2 sends and the corresponding media file access request of this time slice information to the network equipment 1 according to this time slice information, and correspondingly, the network equipment 1 receives this media file access request; At step S2 " in, the network equipment 1 obtains with the corresponding file of this media file access request and gets parms; At step S3 " in; the network equipment 1 is according to this media file access request; in conjunction with it at step S2 " in the file that obtains get parms, and this time slice information is obtained the media file of corresponding time slice from the media file storehouse of this network equipment 1 or third party device; At step S63 " in, the network equipment 1 is sent to subscriber equipment 2 with these media files, and correspondingly, subscriber equipment 2 receives these media files.

For example, in the playing process of media file, the user carries out drag operation via the broadcast window of 2 pairs of these media files of subscriber equipment, at step S5 " in, subscriber equipment 2 obtains this drag operation; At step S61 " in; subscriber equipment 2 is according to this drag operation; obtain and the corresponding time point information of this drag operation; as " 00:47:23 "; and resolve this time point information, obtain corresponding time slice information, as " 00:47:20-00:47:25 "; according to this time slice information, download and the corresponding media file of this time slice information as yet in the buffer memory of discovery subscriber equipment 2; At step S62 " in, subscriber equipment 2 sends corresponding media file access request according to this time slice information to the network equipment 1, and is corresponding, and the network equipment 1 receives this media file access request; Subsequently, at step S2 " in, the network equipment 1 obtains with the corresponding file of this media file access request and gets parms; At step S3 " in; the network equipment 1 extracts this time slice information from this media file access request; and according to this media file access request; get parms in conjunction with file; and this time slice information; from the media file storehouse of the network equipment 1, obtain the media file of this time slice information time corresponding segmentation, and the media file of time slice afterwards; At step S63 " in, the network equipment 1 is sent to subscriber equipment 2 with these media files, and correspondingly, subscriber equipment 2 receives these media files; Then, at step S7 " in, subscriber equipment 2 is organized these media files according to corresponding time slice, and to the broadcast of decoding of these media files.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and under the situation that does 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 " speech, 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

1. one kind is used for method based on time slice transmission medium file at network equipment end, and wherein, this method may further comprise the steps:

D is sent to described subscriber equipment with described media file.

2. method according to claim 1, wherein, obtain described in the described step b operation getparms of described file based on following at least each:

The network bandwidth of-described subscriber equipment;

-this user's history access record;

-this user's preference setting;

The media file of-the time slice that sends at last.

3. method according to claim 2 wherein, is obtained the network bandwidth of described file operation getparms based on described subscriber equipment described in the described step b;

Wherein, described step b also comprises:

-obtain the network bandwidth shake incident of described subscriber equipment;

-according to described network bandwidth shake incident, determine the described network bandwidth.

4. according to each described method in the claim 1 to 3, wherein, this method also comprises:

X carries out cutting according to the Preset Time segmentation parameter to the source media file in the described media file storehouse, to obtain described media file.

5. method according to claim 4, wherein, this method also comprises:

-according to the network bandwidth of described subscriber equipment, determine and adjust described Preset Time segmentation parameter.

6. according to each described method in the claim 1 to 5, wherein, described step a also comprises:

-be received from the media file access request that described subscriber equipment sends, wherein, described media file access request is corresponding with the time slice information of described media file;

Wherein, described step c also comprises:

-according to described media file access request, get parms in conjunction with described file, and described time slice information, from described media file storehouse, obtain described media file.

7. according to each described method in the claim 1 to 5, wherein, described step a also comprises:

-be received from the media file access request that described subscriber equipment sends, wherein, described media file access request is corresponding with the time point information of described media file;

Wherein, described step c also comprises:

-the time point information of the described media file of extraction from described media file access request;

-according to described time point information, obtain time slice information with the corresponding described media file of described time point;

8. one kind is used for obtaining based on time slice the method for media file at the subscriber equipment end, and wherein, this method may further comprise the steps:

A obtains the drag operation of user to the playback of media files window;

The C tissue is also play described media file.

9. method according to claim 8, wherein, described step B also comprises:

B1 obtains and the corresponding time point information of described drag operation according to described drag operation;

B2 sends and the corresponding media file access request of described time point information to the network equipment according to described time point information;

The media file that B3 is received from that the described network equipment sends based on the time slice of described media file access request.

10. method according to claim 9, wherein, described step B1 also comprises:

-according to described time point information, determine time slice information with the corresponding described media file of described time point information;

Wherein, described step B2 also comprises:

-according to described time slice information, send and the corresponding media file access request of described time slice information to the described network equipment.

11. a network equipment that is used for based on time slice transmission medium file, wherein, this network equipment comprises:

12. the network equipment according to claim 11, wherein, described parameter obtaining device obtain the operation getparms of described file based on following at least each:

The network bandwidth of-described subscriber equipment;

-this user's history access record;

-this user's preference setting;

The media file of-the time slice that sends at last.

13. the network equipment according to claim 12, wherein, described parameter obtaining device is obtained the network bandwidth of described file operation getparms based on described subscriber equipment;

Wherein, described parameter obtaining device also is used for:

-obtain the network bandwidth shake incident of described subscriber equipment;

14. according to each described network equipment in the claim 11 to 13, wherein, this network equipment also comprises:

Cutting device is used for according to the Preset Time segmentation parameter, and the source media file in the described media file storehouse is carried out cutting, to obtain described media file.

15. the network equipment according to claim 14, wherein, this network equipment also comprises:

Adjusting device is used for the network bandwidth according to described subscriber equipment, determines and adjusts described Preset Time segmentation parameter.

16. according to each described network equipment in the claim 11 to 15, wherein, described receiving system also is used for:

Wherein, described file deriving means also is used for:

17. according to each described network equipment in the claim 11 to 15, wherein, described receiving system also is used for:

Wherein, described file deriving means also is used for:

18. a subscriber equipment that is used for obtaining based on time slice media file, wherein, this subscriber equipment comprises:

Playing device is used for tissue and plays described media file.

19. subscriber equipment according to claim 18, wherein, described operation resolver also comprises:

Resolution unit is used for according to described drag operation, obtains and the corresponding time point information of described drag operation;

Transmitting element is used for according to described time point information, sends and the corresponding media file access request of described time point information to the network equipment;

Receiving element is used to be received from that the described network equipment sends based on the media file of the time slice of described media file access request.

20. subscriber equipment according to claim 19, wherein, described resolution unit also is used for:

Wherein, described transmitting element also is used for:

21. a system that is used for based on time slice transmission medium file, wherein, this system comprises as each described network equipment in the claim 11 to 17 with as each described subscriber equipment in the claim 18 to 20.