CN101267330A - Method and device for playing multimedia file - Google Patents
Method and device for playing multimedia file Download PDFInfo
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- CN101267330A CN101267330A CNA2008100946554A CN200810094655A CN101267330A CN 101267330 A CN101267330 A CN 101267330A CN A2008100946554 A CNA2008100946554 A CN A2008100946554A CN 200810094655 A CN200810094655 A CN 200810094655A CN 101267330 A CN101267330 A CN 101267330A
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Abstract
The embodiment of the invention discloses a method for continuously playing multimedia files, the method comprises the steps of: before a first multimedia file finishes playing, determining a second multimedia file needed to be played next and address information of the second multimedia file; downloading the data of the second multimedia file according to the address information; after the first multimedia file finishes playing, reading and playing the downloaded data of the second multimedia file. The embodiment of the invention also discloses a device. By using the invention, the interval between the time one multimedia file finishes playing and the time the next multimedia file starts playing is greatly reduced while continuously playing the multimedia files.
Description
Technical field
The present invention relates to the multimedia field, relate in particular to a kind of method and device of play multimedia files.
Background technology
The user needs at first to click video or the audio url that selection will be play when client terminal playing Online Video or audio frequency, client is according to chained address Connection Service device and download buffered data, plays then.
When the user needs to play a plurality of videos or audio file continuously, during such as many set contents of a plurality of fragments of playing continuously certain film or certain TV play, need be after the user clicks the next file chaining that needs to play after a file finishes playing Connection Service device and load buffered data, and then play.Like this, just carry out the connection of server and the loading buffering of data when the broadcast of each file needs user clicks on links, user's energy input and stand-by period are longer.
In order to reduce user's energy input, a kind of method of taking at present is, the user need to select a plurality of videos or the audio file of broadcast continuously in advance, and a plurality of files that will select add in the playlist of setting up, a plurality of files are play one by one according to the order in playlist, and after promptly current file was play and finished, client was determined the address of next file in the playlist, and download according to the buffering that the connection of server and data are carried out in this address, play then.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following technical problem:
When adopting existing mode to play a plurality of videos in the playlist or audio file continuously, finish to begin to play from the current file broadcast to next file, the middle stand-by period of wanting at interval next file to be carried out the data load buffering, wasted user's time cost.Simultaneously, be loaded into local client fully from the data of current file after, to beginning to play in the time of next file, the Internet resources of local client are in idle state, are underutilized.
Summary of the invention
The embodiment of the invention provides a kind of method and device of continuous play multimedia files, long problem of the time interval when playing a plurality of multimedia file in order to solve continuously in the prior art.
The embodiment of the invention provides a kind of method of continuous play multimedia files, and this method comprises:
Before first multimedia file finishes, determine next second multimedia file of broadcast and the address information of this second multimedia file of needing;
Download the data of described second multimedia file according to described address information;
After described first multimedia file finishes, read the data of described described second multimedia file that downloads to and play.
The embodiment of the invention provides a kind of device, and this device comprises:
Determining unit is used for before first multimedia file finishes, and determines next second multimedia file of broadcast and the address information of this second multimedia file of needing;
Download unit is used for downloading according to described address information the data of described second multimedia file;
Broadcast unit after being used for described first multimedia file and finishing, reads the data of described described second multimedia file that downloads to and plays.
Among the present invention, by before first multimedia file finishes, determine next second multimedia file of broadcast and the address information of this document of needing, and download the data of second multimedia file according to this address information, after making that current first multimedia file finishes, just can directly read the data of second multimedia file that downloads to and play, having reduced the broadcast of first multimedia file greatly finished to the blanking time that begins to play second multimedia file, thereby reduced user's time cost, improved user experience.
Description of drawings
Fig. 1 is the schematic flow sheet of method that the embodiment of the invention provides;
Fig. 2 A is the structural representation of the generator embodiment of embodiment institute one among the present invention;
Fig. 2 B is the structural representation of the generator embodiment of embodiment institute two among the present invention;
Fig. 3 is a play multimedia files of the present invention interface schematic diagram.
Embodiment
A file when reducing continuous play multimedia files is played to the time interval that next file is play, the embodiment of the invention provides a kind of method of continuous play multimedia files, in this method, before current multimedia file is play end, begin to download the next data that need the multimedia file of broadcast, current multimedia file directly reads the data that download to and carries out the broadcast of next multimedia file after playing and finishing.
Referring to Fig. 1, the method for the continuous play multimedia files that the embodiment of the invention provides specifically comprises:
Step 10: before first multimedia file finishes, determine next second multimedia file of broadcast and the address information of this second multimedia file of needing;
In this step, determine next second multimedia file of broadcast and the address information of this second multimedia file of needing, its specific implementation comprises following two kinds of embodiment:
Embodiment one:
From playlist, determine a multimedia file as described second multimedia file, and obtain the address information of the described multimedia file that is determined, with address information as described second multimedia file from playlist.
Concrete, (this address information can be unified resource location (URL to have write down multimedia file to be played and address information thereof in the described playlist, Uniform Resource Locator) identification information, or other any information that can be used in identification of multimedia file storage path), then can put in order according to the multimedia file in the playlist, the multimedia file that makes number one in the playlist is chosen as second multimedia file, and from playlist, obtains the address information of this second multimedia file.Certainly, also can be not according to the putting in order of multimedia file, and select alternative document in the playlist as second multimedia file, and obtain its corresponding address information.Multimedia file in the described playlist can by but be not limited to produce by the following method: in the video request program website, list introduction for the multimedia file of program request, each multimedia file introduction for program request is other can be provided with an interpolation link, the user browses listed multimedia file introduction for program request, clicking the other corresponding described interpolation of oneself wanting to watch of multimedia file links, then the multimedia file that oneself can be wanted watch is added into described playlist, simultaneously, the pairing hypertext link of each multimedia file address is the address information of each multimedia file in playlist.
Embodiment two:
Resource information according to described first multimedia file, search and the relevant multimedia file of described first multimedia file, from the described multimedia file that finds, select a multimedia file as described second multimedia file, and with the address information of the multimedia file that the found address information as described second multimedia file.
Present embodiment specifically comprises following two kinds of implementations:
First kind of implementation:
At first, with the resource information of described first multimedia file, mate with the keyword of storing in the keyword database of setting up in advance, described resource information can be file name information, descriptor etc.;
Then, utilize the described keyword that the match is successful to carry out multi-medium file search, from the multimedia file that searches, select one as described second multimedia file, and with the address information of the selected multimedia file address information as described second multimedia file.
For example, one of them keyword of storing in the keyword database is " Journey to the West ", and the file of current displaying video " Journey to the West the 5th collection " by name, by coupling " Journey to the West " extracted, and carry out multi-medium file search as keyword with " Journey to the West ", the possibility of result that search is returned comprises " Journey to the West the 1st collection ", " Journey to the West the 2nd collection ", " Journey to the West cartoon " etc., then, from return results, choose a multimedia file, as " Journey to the West the 2nd collection ", video file of playing as the next one and the URL address information of obtaining this document.
Second kind of implementation:
At first, obtain the file identification of described first multimedia file,, determine described file identification corresponding file classification according to file identification, the address information of multimedia file and the corresponding relation of file class of the multimedia file of setting up in advance;
Then, alternative document sign according to described corresponding relation search this document classification correspondence, identify the pairing multimedia file from the alternative document that searches, select one as described second multimedia file, and with the address information of the selected multimedia file address information as described second multimedia file.
Described file identification can for filename, file storage addresses or content signature (ContentIdentity, CID) etc.Wherein, content signature is according to default algorithm the content-data of file to be calculated the back to obtain.Default algorithm can be the arbitrary algorithm that different data processing is obtained different results, its result, and promptly content is signed, but the processed file of unique identification; Perhaps, default algorithm also can be that the result repetition rate is extremely low, the algorithm in tolerance interval.For example, a kind of method of determining the content signature is: the data of the front 32k byte of extraction document, middle 32k byte, afterbody 32k byte, three partial datas that obtained are linked in sequence, adopt hash algorithm, such as md5 (Message-Digest Algorithm 5) algorithm, calculate the md5 value of the 96k data that connect gained, as the content signature of this document.
With example second kind of implementation described, please refer to table 1, described in the present embodiment file identification is a content signature (CID), set up the CID of each multimedia file and the corresponding relation of the affiliated file class of each multimedia file in advance, for example in table 1, CID1, CID2 and CID3 belong to " Journey to the West " file class, and CID4 belongs to " Water Margin " classification.When the user selects to play the multimedia file of CID2 correspondence, determine that according to the described corresponding relation of setting up CID2 corresponding file classification is " Journey to the West ", and search the file identification of other multimedia files of " Journey to the West " classification correspondence according to described corresponding relation, be CID1 and CID3, then, from lookup result, choose the file identification of a multimedia file, this document is identified corresponding multimedia file as described second multimedia file, and obtain the URL address information of this document.Concrete acquisition methods can be: set up the file identification of multimedia file and the corresponding relation of URL in advance, then directly obtained from described corresponding relation (as shown in table 1); Also file identification can be searched in network as keyword and be obtained.
| File class | File identification | Address information |
| Journey to the West | CID1 | URL1 |
| Journey to the West | CID2 | URL2 |
| Journey to the West | CID3 | URL3 |
| The Water Margin | CID4 | URL4 |
Table 1
In above-mentioned two kinds of implementations, select one as second multimedia file from the multimedia file that searches, its concrete grammar can be, the multimedia file that searches is sorted according to a pre-defined rule, chooses according to ranking results.Described pre-defined rule can be the multimedia file video-on-demand times, or the serial number of multimedia file.Concrete, can be with the multimedia file that searches according to video-on-demand times from how to sort to few order, then, choose that to come the most forward be that the maximum multimedia file of video-on-demand times is as second multimedia file; Perhaps, the degree of closeness that the multimedia file that searches can be numbered in order with the current first multimedia file serial number sorts, then, choose that to come the most forward be that the file of the most approaching current first multimedia file of serial number is as second multimedia file.Described serial number specifically can be the collection number of TV play or fragment number of film etc., and serial number can get access to from filename or descriptor.Or also can from the multimedia file that searches, select one at random as second multimedia file.
Step 11: the data of downloading described second multimedia file according to described address information;
Here, specifically can the data of described first multimedia file download finish after, finish before, download the data of described second multimedia file according to described address information.Certainly, also can before finishing, the data download of first multimedia file promptly begin to download the data of described second multimedia file, promptly the data of the data of first multimedia file and second multimedia file can be downloaded simultaneously, only otherwise the normal play that influences first multimedia file gets final product.
Preferably, the user can be according to the needs of oneself, and whether control downloads the data of described second multimedia file.Then described method also can comprise:
When receiving a stop signal, stop to download the data of described second multimedia file.
Step 12: after described first multimedia file finishes, read described pre-download second multimedia file data and play.
The embodiment of the invention also provides a kind of device, and this device comprises determining unit 20, download unit 21 and broadcast unit 22, wherein:
Described determining unit 20 is used for before first multimedia file finishes, and determines next second multimedia file of broadcast and the address information of this second multimedia file of needing;
Described download unit 21 is used for downloading according to described address information the data of described second multimedia file;
Described broadcast unit 22 after being used for described first multimedia file and finishing, reads the data of described described second multimedia file that downloads to and plays.
Shown in Fig. 2 A, as first embodiment, described determining unit 20 comprises file unit 30 and acquiring unit 31, wherein:
Described file unit 30 is used for determining that from a playlist multimedia file is as described second multimedia file.
Described acquiring unit 31 is used for obtaining from described playlist the address information of the described multimedia file that is determined, with the address information as described second multimedia file.
Concrete, multimedia file to be played and address information thereof have been write down in the described playlist, can put in order according to the multimedia file in the playlist, first multimedia file in the playlist is chosen as second multimedia file, certainly, also can select other multimedia files in the playlist as second multimedia file.From playlist, obtain the address information of selecteed multimedia file again, with its address information as described second multimedia file.
Shown in Fig. 2 B, as second embodiment, described determining unit 20 comprises searches unit 32 and selected cell 33, wherein:
The described unit 32 of searching is used for the resource information according to described first multimedia file, searches and the relevant multimedia file of described first multimedia file;
Described selected cell 33, be used for selecting a multimedia file as described second multimedia file from the described multimedia file that finds, obtain the address information of the multimedia file that is found, and with the address information of this address information as described second multimedia file.
As described a kind of implementation of searching unit 32, the described unit 32 of searching comprises the matching unit and first search unit, wherein:
Described matching unit is used for the resource information with described first multimedia file, mates with the keyword of storing in the keyword database of setting up in advance; Described Word message comprises file name information, descriptor etc.;
Described first search unit is used to utilize the keyword that the match is successful to carry out multi-medium file search, with the multimedia file that searches as the described multimedia file relevant with first multimedia file.
As described another kind of implementation of searching unit 32, the described unit 32 of searching comprises the classification unit and second search unit, wherein:
Described classification unit is used to obtain the file identification of described first multimedia file, according to file identification, the address information of multimedia file and the corresponding relation of file class of the multimedia file of setting up in advance, determines described file identification corresponding file classification.
Described second search unit, be used for searching for the alternative document sign of described file class correspondence according to described corresponding relation, identify the pairing multimedia file from the alternative document that searches, select one as the described multimedia file relevant with first multimedia file.Described file identification can for filename, file storage addresses or content signature (Content Identity, CID) etc.
Preferably, described selected cell 33 can comprise sequencing unit and choose the unit, wherein:
Described sequencing unit is used for the described multimedia file that finds is sorted according to a pre-defined rule; Described pre-defined rule can be the multimedia file video-on-demand times, or the serial number of multimedia file.Concrete, can be with the multimedia file that searches according to video-on-demand times from how to sort to few order, then, choose that to come the most forward be that the maximum multimedia file of video-on-demand times is as second multimedia file; Perhaps, the degree of closeness that the multimedia file that searches can be numbered in order with the current first multimedia file serial number sorts.
The described unit of choosing is used for selecting a multimedia file as described second multimedia file according to described ranking results.Concrete, can choose come in the above-mentioned ranking results the most forward be video-on-demand times at most or the file of the most approaching current first multimedia file of serial number as second multimedia file.
Preferably, described download unit 21 comprises time quantum 34 and data cell 35, wherein:
Described time quantum 34 is used for sending a control signal when the data download of described first multimedia file is finished;
Described data cell 35 is used for when receiving described control signal, downloads the data of described second multimedia file according to described address information.
Preferably, described download unit 21 also is used for stopping to download the data of described second multimedia file when receiving a stop signal.
In the method and device of the continuous play multimedia files that the embodiment of the invention provides, after having determined described second multimedia file, also can further determine one the 3rd multimedia file, specifically can be: described second multimedia file is considered as first a new multimedia file, determine second a new multimedia file by described method or device with respect to described new first multimedia file, and will this second new multimedia file as described the 3rd multimedia file.By that analogy, can determine the 4th multimedia file, the 5th multimedia file or the like.
Please refer to Fig. 3, is play multimedia files of the present invention interface schematic diagram, can give the prompting of download progress when downloading second multimedia file in advance at Webpage or above the multimedia player, is convenient to the user and knows the progress of pre-file in download.First multimedia file and the download progress bar 100a thereof that comprise a current broadcast among Fig. 3, fixed second multimedia file and download progress bar 100b thereof have also been comprised first below multimedia, with the 3rd multimedia file and download progress bar 100c thereof, the dash area among described download progress bar 100a, 100b and the 100c is represented the current data downloaded of the pairing multimedia file of each download progress bar progress respectively.By the download progress bar of each multimedia file, also can there be one and stops download button, the user can be by clicking this button to stop to download corresponding multimedia file.
Need to prove that the multimedia file of mentioning is video file, audio file etc. herein.
To sum up, beneficial effect of the present invention is:
In the scheme that the embodiment of the invention provides, by before current multimedia file finishes, determine the next multimedia file of broadcast and the address information of this document of needing, and download the data of the multimedia file that next needs play according to this address information, after making that current multimedia file finishes, just can directly read the data of the multimedia file that the next one that downloads to need play and play, having reduced by a file broadcast greatly finished to the blanking time that begins to play next file, thereby reduced user's time cost, improved user experience.
The data of current multimedia file download finish after, finish before, just begin to download the data of next multimedia file, make the network bandwidth be fully used, reduced the input cost of bandwidth.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1, a kind of method of continuous play multimedia files is characterized in that, this method comprises:
Before first multimedia file finishes, determine next second multimedia file of broadcast and the address information of this second multimedia file of needing;
Download the data of described second multimedia file according to described address information;
After described first multimedia file finishes, read the data of described described second multimedia file that downloads to and play.
2, the method for claim 1 is characterized in that, after the data download of described first multimedia file is finished, downloads the data of described second multimedia file according to described address information.
3, the method for claim 1 is characterized in that, described definite next second multimedia file of broadcast and address information of this second multimedia file of needing comprises:
Select File is as described second multimedia file from playlist, and obtains the address information of described second multimedia file from playlist; Or
Resource information according to described first multimedia file, search and the relevant multimedia file of described first multimedia file, from the described multimedia file that finds, select a multimedia file as described second multimedia file, and with the address information of the selected multimedia file address information as described second multimedia file.
4, method as claimed in claim 3, it is characterized in that, described resource information according to described first multimedia file, search and the relevant multimedia file of described first multimedia file, from the described multimedia file that finds, select a multimedia file as described second multimedia file, and, comprising the address information of the multimedia file that found address information as described second multimedia file:
Resource information with described first multimedia file, mate with the keyword of storing in the keyword database of setting up in advance, utilize the keyword that the match is successful to carry out multi-medium file search, from the multimedia file that searches, select one as described second multimedia file, and with the address information of the selected multimedia file address information as described second multimedia file; Or
Obtain the file identification of described first multimedia file, according to the address information of the file identification of setting up multimedia file in advance, multimedia file and the corresponding relation of file class, determine described file identification corresponding file classification, alternative document sign according to described corresponding relation search this document classification correspondence, identify the pairing multimedia file from the alternative document that searches, select one as described second multimedia file, and with the address information of the selected multimedia file address information as described second multimedia file.
5, method as claimed in claim 4 is characterized in that, describedly selects one to comprise as described second multimedia file from the multimedia file that searches:
The described multimedia file that searches is sorted according to a pre-defined rule, select a multimedia file as described second multimedia file according to ranking results.
6, method as claimed in claim 5 is characterized in that, described pre-defined rule is:
Multimedia file video-on-demand times, or the serial number of multimedia file.
7, as claim 1,2,3,4,5 or 6 described methods, it is characterized in that described method also comprises:
When receiving a stop signal, stop to download the data of described second multimedia file.
8, a kind of device is characterized in that, this device comprises:
Determining unit is used for before first multimedia file finishes, and determines next second multimedia file of broadcast and the address information of this second multimedia file of needing;
Download unit is used for downloading according to described address information the data of described second multimedia file;
Broadcast unit after being used for described first multimedia file and finishing, reads the data of described described second multimedia file that downloads to and plays.
9, device as claimed in claim 8 is characterized in that, described determining unit comprises:
File unit is used for determining that from a playlist multimedia file is as described second multimedia file;
Acquiring unit is used for obtaining from described playlist the address information of the described multimedia file that is determined, with the address information as described second multimedia file.
10, device as claimed in claim 8 is characterized in that, described determining unit comprises:
Search the unit, be used for resource information, search and the relevant multimedia file of described first multimedia file according to described first multimedia file;
Selected cell, be used for selecting a multimedia file as described second multimedia file from the described multimedia file that finds, obtain the address information of selected multimedia file, and with the address information of this address information as described second multimedia file.
11, device as claimed in claim 10 is characterized in that, the described unit of searching comprises:
Matching unit is used for the resource information with described first multimedia file, mates with the keyword of storing in the keyword database of setting up in advance;
First search unit is used to utilize the keyword that the match is successful to carry out multi-medium file search, with the multimedia file that searches as the described multimedia file relevant with first multimedia file.
12, device as claimed in claim 10 is characterized in that, the described unit of searching comprises:
The classification unit is used to obtain the file identification of described first multimedia file, according to file identification, the address information of multimedia file and the corresponding relation of file class of the multimedia file of setting up in advance, determines described file identification corresponding file classification;
Second search unit, be used for searching for the alternative document sign of described file class correspondence according to described corresponding relation, identify the pairing multimedia file from the alternative document that searches, select one as the described multimedia file relevant with first multimedia file.
13, as claim 10,11 or 12 described devices, it is characterized in that described selected cell comprises:
Sequencing unit is used for the described multimedia file that finds is sorted according to a pre-defined rule;
Choose the unit, be used for selecting a multimedia file as described second multimedia file according to described ranking results.
14, device as claimed in claim 13 is characterized in that, described pre-defined rule is:
Multimedia file video-on-demand times, or the serial number of multimedia file.
15, as claim 8,9,10,11,12 or 14 described devices, it is characterized in that described download unit comprises:
Time quantum is used for sending a control signal when the data download of described first multimedia file is finished;
Data cell is used for when receiving described control signal, downloads the data of described second multimedia file according to described address information.
16, as claim 8,9,10,11,12 or 14 described devices, it is characterized in that:
Described download unit also is used for stopping to download the data of described second multimedia file when receiving a stop signal.
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| CNA2008100946554A CN101267330A (en) | 2008-04-29 | 2008-04-29 | Method and device for playing multimedia file |
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| CNA2008100946554A CN101267330A (en) | 2008-04-29 | 2008-04-29 | Method and device for playing multimedia file |
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