CN104994445B - The playback method and device of multimedia file - Google Patents
The playback method and device of multimedia file Download PDFInfo
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- CN104994445B CN104994445B CN201510385750.XA CN201510385750A CN104994445B CN 104994445 B CN104994445 B CN 104994445B CN 201510385750 A CN201510385750 A CN 201510385750A CN 104994445 B CN104994445 B CN 104994445B
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- multimedia file
- resource locator
- uniform resource
- playing
- multimedia
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
Abstract
The present invention is suitable for the playback method and device of multimedia technology field more particularly to multimedia file.This method includes：Playlist is obtained, the playlist includes the unique identifier of multiple multimedia files；When playing the first multimedia file, the second multimedia file to be played is determined according to current play mode, and the uniform resource locator of second multimedia file is obtained according to the unique identifier of second multimedia file；When detecting the instruction for playing second multimedia file, second multimedia file is obtained according to the uniform resource locator of second multimedia file；Play second multimedia file obtained.The present invention obtains its uniform resource locator in advance before playing the multimedia file using dynamic unity Resource Locator, to reduce the waiting time for the multimedia file for using dynamic unity Resource Locator, the playing efficiency of the multimedia file using dynamic unity Resource Locator is improved.
Description
Technical field
The invention belongs to multimedia technology field more particularly to the playback methods and device of multimedia file.
Background technology
Based on security consideration, uniform resource locator (the Uniform Resource of existing most of multimedia files
Locator, URL) be all dynamic, i.e., the URL of the described multimedia file is only effective in certain period of time, is more than the time
Duan Hou, the multimedia file uses new URL, and will be unable to play the multimedia file by old URL.
Therefore, before playing the multimedia file using dynamic URL, need real-time acquiring multi-media file newest
URL causes the waiting time of the multimedia file longer.
Invention content
In consideration of it, an embodiment of the present invention provides a kind of playback method of multimedia file and device, to solve existing skill
Using the longer problem of waiting time of the multimedia file of dynamic URL in art.
In a first aspect, an embodiment of the present invention provides a kind of playback methods of multimedia file, including：
Playlist is obtained, the playlist includes the unique identifier of multiple multimedia files；
When playing the first multimedia file, the second multimedia file to be played is determined according to current play mode, and
The uniform resource locator of second multimedia file is obtained according to the unique identifier of second multimedia file, it is described
First multimedia file and second multimedia file are respectively that some unique identifier in the playlist is corresponding
Multimedia file；
When detecting the instruction for playing second multimedia file, unified according to second multimedia file provides
Source finger URL obtains second multimedia file；
Play second multimedia file obtained.
Second aspect, an embodiment of the present invention provides a kind of playing devices of multimedia file, including：
Playlist acquisition unit, for obtaining playlist, the playlist include multiple multimedia files only
One identifier；
Uniform resource locator acquiring unit is used for when playing the first multimedia file, true according to current play mode
Fixed second multimedia file to be played, and the matchmaker more than second is obtained according to the unique identifier of second multimedia file
The uniform resource locator of body file, first multimedia file and second multimedia file are respectively the played column
The corresponding multimedia file of some unique identifier in table；
Second multimedia file acquiring unit, for when detecting the instruction for playing second multimedia file, root
Second multimedia file is obtained according to the uniform resource locator of second multimedia file；
Broadcast unit, for playing second multimedia file obtained.
Existing advantageous effect is the embodiment of the present invention compared with prior art：The embodiment of the present invention is by playing first
When multimedia file, the second multimedia file to be played is determined according to current play mode, and according to the second multimedia file
Unique identifier obtain the second multimedia file uniform resource locator, thus play use dynamic unity Resource orientation
Its uniform resource locator is obtained in advance before the multimedia file of symbol, and is avoided using the more of dynamic unity Resource Locator
Media file sowing time just obtains its uniform resource locator, to reduce the multimedia for using dynamic unity Resource Locator
The waiting time of file improves the playing efficiency of the multimedia file using dynamic unity Resource Locator.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation flow chart of the playback method of multimedia file provided in an embodiment of the present invention；
Fig. 2 is to detect broadcasting described in the playback method step S103 of multimedia file provided in an embodiment of the present invention
When the instruction of second multimedia file, described second is obtained according to the uniform resource locator of second multimedia file
The specific implementation flow chart of multimedia file；
Fig. 3 is the playback method for the multimedia file that another embodiment of the present invention provides；
Fig. 4 is the structure diagram of the playing device of multimedia file provided in an embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the implementation flow chart of the playback method of multimedia file provided in an embodiment of the present invention, and details are as follows：
In step S101, playlist is obtained, the playlist includes the unique identifier of multiple multimedia files.
It should be noted that the executive agent of the embodiment of the present invention can be speaker, or mobile terminal or meter
Calculation machine etc., does not limit herein.When the executive agent of the embodiment of the present invention is speaker, speaker is from mobile terminal or computer
Middle acquisition playlist.
Further, playlist further includes the ID3 information of multimedia file.The ID3 information of multimedia file includes song
The information such as hand, title, album name, age and/or style.
In step s 102, when playing the first multimedia file, to be played second is determined according to current play mode
Multimedia file, and the unified of second multimedia file is obtained according to the unique identifier of second multimedia file and is provided
Source finger URL, first multimedia file and second multimedia file be respectively in the playlist some is unique
The corresponding multimedia file of identifier.
Wherein, current play mode includes played in order and shuffle etc..Multimedia file to be played refer to by
According to current play mode, in the multimedia file of next broadcasting of the first multimedia file.It is played in the first multimedia file
When, the uniform resource locator of the second multimedia file is obtained in advance.
In step s 103, when detecting the instruction for playing second multimedia file, according to the matchmaker more than second
The uniform resource locator of body file obtains second multimedia file；
In step S104, second multimedia file of acquisition is played.
Herein, the instruction for playing the second multimedia file may be after the first multimedia file plays according to working as
The instruction that preceding play mode generates, it is also possible to the instruction input by user for playing the second multimedia file.It is played detecting
When the instruction of the second multimedia file, the second multimedia file is obtained according to the uniform resource locator obtained in advance, then play
The second multimedia file obtained.Since uniform resource locator obtains in advance, it rises and broadcasts in the second multimedia file
When, the time for obtaining uniform resource locator is saved, to reduce the waiting time of the second multimedia file.
Preferably, the unique identifier according to second multimedia file obtains second multimedia file
Uniform resource locator is specially：
The unified resource that second multimedia file is obtained according to the unique identifier of second multimedia file is fixed
The effective period of time of position symbol and the uniform resource locator.
For being obtained while obtaining uniform resource locator using the multimedia file of dynamic unity Resource Locator
Take the effective period of time of uniform resource locator.In specific implementation, the effective period of time for obtaining uniform resource locator may
To obtain the generated time and deadline of uniform resource locator, so that it is determined that the effective period of time of the effective period of time gone out；
The effective period of time for obtaining uniform resource locator may also be to obtain generated time and the effective time of uniform resource locator,
The effective period of time of uniform resource locator is calculated again.
It is broadcast described in playback method step S103 Fig. 2 shows multimedia file provided in an embodiment of the present invention detecting
When putting the instruction of second multimedia file, described the is obtained according to the uniform resource locator of second multimedia file
The specific implementation flow chart of two multimedia files, with reference to Fig. 2：
In step s 201, when detecting the instruction for playing second multimedia file, judge present system time
Whether in the effective period of time, if so, thening follow the steps S202；If it is not, thening follow the steps S203；
In step S202, second multimedia is obtained according to the uniform resource locator of second multimedia file
File；
In step S203, second multimedia is obtained according to the unique identifier of second multimedia file again
The uniform resource locator of file, and the second multimedia text is obtained according to the uniform resource locator of reacquisition
Part.
Judge that present system time whether in the effective period of time of uniform resource locator, that is, judges present system time
Whether be more than uniform resource locator deadline.If present system time, still in effective period of time, directly basis obtains
The uniform resource locator taken obtains the second multimedia file.If present system time obtains again not in effective period of time
The uniform resource locator of the second multimedia file is taken, and the second multimedia is obtained according to the uniform resource locator of reacquisition
File.
Preferably, it is determined according to current play mode to be played described in step S102 when playing the first multimedia file
The second multimedia file, and second multimedia file is obtained according to the unique identifier of second multimedia file
Uniform resource locator includes：
When detecting the instruction for playing first multimedia file, to be played is determined according to current play mode
Two multimedia files, and obtain according to the unique identifier of second multimedia file unification of second multimedia file
Resource Locator.
When being played to the uninterested multimedia file of user, user may send out quickly plays next multimedia
Therefore the instruction of file as an embodiment of the present invention, when detecting the instruction for playing the first multimedia file, is stood
Carve the uniform resource locator that the second multimedia file is obtained according to the unique identifier of the second multimedia file.
Preferably, described when detecting the instruction for playing first multimedia file, according to current play mode
It determines the second multimedia file to be played, and described more than second is obtained according to the unique identifier of second multimedia file
After the uniform resource locator of media file, the method further includes：
The deadline of the uniform resource locator is determined according to the effective period of time；
Calculate the difference of the deadline and first multimedia file risen between sowing time；
If the difference is less than the total duration of first multimedia file, in the broadcasting of first multimedia file
When duration reaches the difference, the second multimedia text is obtained according to the unique identifier of second multimedia file again
The uniform resource locator of part.
It should be noted that in some cases, it can be possible to directly obtaining the unification of the second multimedia file from server
The deadline of Resource Locator.If the difference of deadline and the first multimedia file risen between sowing time is less than the first multimedia
The total duration of file then shows before the first multimedia file finishes playing, the unification of the second multimedia file obtained
Resource Locator will fail.Therefore, when the playing duration of the first multimedia file reaches the difference, matchmaker more than second is updated
The uniform resource locator of body file.
Fig. 3 shows the playback method for the multimedia file that another embodiment of the present invention provides, with reference to Fig. 3：
In step S301, playlist is obtained, the playlist includes the unique identifier of multiple multimedia files；
In step s 302, when detecting the instruction for playing first multimedia file, according to current play mode
It determines the second multimedia file to be played, and described more than second is obtained according to the unique identifier of second multimedia file
The effective period of time of the uniform resource locator of media file and the uniform resource locator；
In step S303, the deadline of the uniform resource locator is determined according to the effective period of time；
In step s 304, the difference of the deadline and first multimedia file risen between sowing time is calculated；
In step S305, judge whether the difference is less than the total duration of first multimedia file, if so, executing
Step S306；If it is not, executing step S308；
In step S306, when the playing duration of first multimedia file reaches the difference, again according to institute
The unique identifier for stating the second multimedia file obtains the uniform resource locator of second multimedia file and the system
The effective period of time of one Resource Locator；
In step S307, when detecting the instruction for playing second multimedia file, according to the institute of reacquisition
It states uniform resource locator and obtains second multimedia file；
In step S308, when detecting the instruction for playing second multimedia file, according to the matchmaker more than second
The uniform resource locator of body file obtains second multimedia file；
In step S309, second multimedia file of acquisition is played.
It should be understood that in embodiments of the present invention, size of the sequence numbers of the above procedures is not meant to the elder generation of execution sequence
Afterwards, the execution sequence of each process should be determined by its function and internal logic, the implementation process structure without coping with the embodiment of the present invention
At any restriction.
It should be noted that the first multimedia file of the present embodiment refers to a certain multimedia file, " first " is only herein
Statement and the convenience referred to are not meant to centainly to have corresponding matchmaker more than first in the specific implementation of the present invention
Body file.Similarly, " second " in the second multimedia file is also used for the purpose of statement and refers to conveniently, is not meant to
Corresponding second multimedia file is centainly had in the specific implementation of the present invention.
The embodiment of the present invention is by the way that when playing the first multimedia file, to be played is determined according to current play mode
Two multimedia files, and positioned according to the unified resource of the unique identifier of the second multimedia file the second multimedia file of acquisition
Thus symbol obtains its uniform resource locator in advance before playing the multimedia file using dynamic unity Resource Locator,
And avoid just obtaining its uniform resource locator in the multimedia file sowing time using dynamic unity Resource Locator, to subtract
The waiting time for having lacked the multimedia file using dynamic unity Resource Locator, it is fixed using dynamic unity resource to improve
The playing efficiency of the multimedia file of position symbol.
Fig. 4 shows the structure diagram of the playing device of multimedia file provided in an embodiment of the present invention, which can be with
For service chart 1 to the playing device of multimedia file shown in Fig. 3.For convenience of description, it illustrates only and implements with the present invention
The relevant part of example.
With reference to Fig. 4, which includes：
Playlist acquisition unit 41, for obtaining playlist, the playlist includes multiple multimedia files
Unique identifier；
Uniform resource locator acquiring unit 42 is used for when playing the first multimedia file, according to current play mode
It determines the second multimedia file to be played, and described more than second is obtained according to the unique identifier of second multimedia file
The uniform resource locator of media file, first multimedia file and second multimedia file are respectively the broadcasting
The corresponding multimedia file of some unique identifier in list；
Second multimedia file acquiring unit 43, for when detecting the instruction for playing second multimedia file,
Second multimedia file is obtained according to the uniform resource locator of second multimedia file；
Broadcast unit 44, for playing second multimedia file obtained.
Preferably, the uniform resource locator acquiring unit 42 is specifically used for：
When playing the first multimedia file, the second multimedia file to be played is determined according to current play mode, and
According to the unique identifier of second multimedia file obtain second multimedia file uniform resource locator and
The effective period of time of the uniform resource locator.
Preferably, the second multimedia file acquiring unit 43 includes：
Judgment sub-unit 431, for when detecting the instruction for playing second multimedia file, judging current system
Whether the time is in the effective period of time；
First obtains subelement 432, if for the present system time in the effective period of time, according to
The uniform resource locator of second multimedia file obtains second multimedia file；
Second obtains subelement 433, if for the present system time not in the effective period of time, root again
Obtain the uniform resource locator of second multimedia file according to the unique identifier of second multimedia file, and according to
The uniform resource locator reacquired obtains second multimedia file.
Preferably, the uniform resource locator acquiring unit 42 is specifically used for：
When detecting the instruction for playing first multimedia file, to be played is determined according to current play mode
Two multimedia files, and obtain according to the unique identifier of second multimedia file unification of second multimedia file
Resource Locator.
Preferably, the uniform resource locator acquiring unit 42 includes：
Deadline determination subelement 421, for determining the uniform resource locator according to the effective period of time
Deadline；
Mathematic interpolation subelement 422, between the sowing time for calculating the deadline and first multimedia file
Difference；
Subelement 423 is reacquired, if being less than the total duration of first multimedia file for the difference, in institute
When stating the playing duration of the first multimedia file and reaching the difference, again according to the unique mark of second multimedia file
Symbol obtains the uniform resource locator of second multimedia file.
The embodiment of the present invention is by the way that when playing the first multimedia file, to be played is determined according to current play mode
Two multimedia files, and positioned according to the unified resource of the unique identifier of the second multimedia file the second multimedia file of acquisition
Thus symbol obtains its uniform resource locator in advance before playing the multimedia file using dynamic unity Resource Locator,
And avoid just obtaining its uniform resource locator in the multimedia file sowing time using dynamic unity Resource Locator, to subtract
The waiting time for having lacked the multimedia file using dynamic unity Resource Locator, it is fixed using dynamic unity resource to improve
The playing efficiency of the multimedia file of position symbol.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
It with the specific work process of unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units can combine or
It is desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed it is mutual it
Between coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING of unit or communication connection, can be with
It is electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. a kind of playback method of multimedia file, which is characterized in that including：
Playlist is obtained, the playlist includes the unique identifier of multiple multimedia files；
When playing the first multimedia file, the second multimedia file to be played is determined according to current play mode, and according to
The unique identifier of second multimedia file obtains the uniform resource locator of second multimedia file and described
The effective period of time of uniform resource locator, first multimedia file and second multimedia file are respectively described broadcast
Emplace the corresponding multimedia file of some unique identifier in table；
It is fixed according to the unified resource of second multimedia file when detecting the instruction for playing second multimedia file
Position symbol obtains second multimedia file；Play second multimedia file obtained；Wherein, described to play described second
The instruction of multimedia file is included in the instruction generated according to current play mode after the first multimedia file plays, and uses
The instruction of the second multimedia file of broadcasting of family input；
Wherein, described when playing the first multimedia file, the second multimedia text to be played is determined according to current play mode
Part, and obtain according to the unique identifier of second multimedia file uniform resource locator of second multimedia file
Including：
When detecting the instruction for playing first multimedia file, determined more than to be played second according to current play mode
Media file, and obtain according to the unique identifier of second multimedia file unified resource of second multimedia file
Finger URL；
The deadline of the uniform resource locator is determined according to the effective period of time；
Calculate the difference of the deadline and first multimedia file risen between sowing time；
If the difference is less than the total duration of first multimedia file, in the playing duration of first multimedia file
When reaching the difference, second multimedia file is obtained according to the unique identifier of second multimedia file again
Uniform resource locator.
2. the method as described in claim 1, which is characterized in that described to detect the finger for playing second multimedia file
When enabling, obtaining second multimedia file according to the uniform resource locator of second multimedia file includes：
When detecting the instruction for playing second multimedia file, judge present system time whether in the effective time
In section；
If the present system time is in the effective period of time, fixed according to the unified resource of second multimedia file
Position symbol obtains second multimedia file；
If the present system time is not in the effective period of time, again according to the unique of second multimedia file
Identifier obtains the uniform resource locator of second multimedia file, and is positioned according to the unified resource of reacquisition
Symbol obtains second multimedia file.
3. a kind of playing device of multimedia file, which is characterized in that including：
Playlist acquisition unit, for obtaining playlist, the playlist includes unique mark of multiple multimedia files
Know symbol；
Uniform resource locator acquiring unit, for when playing the first multimedia file, being waited for according to current play mode determination
The second multimedia file played, and the second multimedia text is obtained according to the unique identifier of second multimedia file
The effective period of time of the uniform resource locator of part and the uniform resource locator, first multimedia file and described
Second multimedia file is respectively the corresponding multimedia file of some unique identifier in the playlist；
Second multimedia file acquiring unit, for when detecting the instruction for playing second multimedia file, according to institute
The uniform resource locator for stating the second multimedia file obtains second multimedia file；Wherein, described to play described second
The instruction of multimedia file is included in the instruction generated according to current play mode after the first multimedia file plays, and uses
The instruction of the second multimedia file of broadcasting of family input；
Broadcast unit, for playing second multimedia file obtained；
Wherein, the uniform resource locator acquiring unit includes：
Deadline determination subelement, when cut-off for determining the uniform resource locator according to the effective period of time
Between；
Mathematic interpolation subelement, the difference risen between sowing time for calculating the deadline and first multimedia file；
Subelement is reacquired, if being less than the total duration of first multimedia file for the difference, described first
When the playing duration of multimedia file reaches the difference, obtained again according to the unique identifier of second multimedia file
The uniform resource locator of second multimedia file.
4. device as claimed in claim 3, which is characterized in that the second multimedia file acquiring unit includes：
Judgment sub-unit, for when detecting the instruction for playing second multimedia file, judging that present system time is
It is no in the effective period of time；
First obtains subelement, if for the present system time in the effective period of time, more than described second
The uniform resource locator of media file obtains second multimedia file；
Second obtains subelement, if for the present system time not in the effective period of time, again according to
The unique identifier of second multimedia file obtains the uniform resource locator of second multimedia file, and according to obtaining again
The uniform resource locator taken obtains second multimedia file.
5. device as claimed in claim 3, which is characterized in that the uniform resource locator acquiring unit is specifically used for：
When detecting the instruction for playing first multimedia file, determined more than to be played second according to current play mode
Media file, and obtain according to the unique identifier of second multimedia file unified resource of second multimedia file
Finger URL.
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| CN104283903A (en) * | 2013-07-01 | 2015-01-14 | 深圳市腾讯计算机系统有限公司 | Downloading method for files and device thereof |
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| CN101189606B (en) * | 2005-06-02 | 2012-05-30 | 汤姆逊许可公司 | Content timing method and system |
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| CN101267330A (en) * | 2008-04-29 | 2008-09-17 | 深圳市迅雷网络技术有限公司 | Method and device for playing multimedia file |
| CN101674317A (en) * | 2009-10-13 | 2010-03-17 | 尹绍华 | RTSP-based method for accessing a plurality of terminals, streaming media server and system thereof |
| CN101707635A (en) * | 2009-12-25 | 2010-05-12 | 中国海洋大学 | Internet-based resource supplying system |
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