CN106162311A - A kind of method playing Internet video and terminal unit - Google Patents
A kind of method playing Internet video and terminal unit Download PDFInfo
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- CN106162311A CN106162311A CN201610579270.1A CN201610579270A CN106162311A CN 106162311 A CN106162311 A CN 106162311A CN 201610579270 A CN201610579270 A CN 201610579270A CN 106162311 A CN106162311 A CN 106162311A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000008569 process Effects 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 3
- 235000008434 ginseng Nutrition 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 2
- 230000000630 rising effect Effects 0.000 abstract description 8
- 238000009331 sowing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000002372 labelling Methods 0.000 description 5
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- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 230000007246 mechanism Effects 0.000 description 2
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Classifications
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Information Transfer Between Computers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of method playing Internet video and terminal unit, play problem long between sowing time for solving existing network video.Method includes: after receiving play instruction, file header data segment according to the Internet video play indicated by play instruction and end-of-file data segment, get the metadata of Internet video, and in the internal memory of video player cache file head data segment and end-of-file data segment, wherein, the parameter information of log file head data segment and the parameter information of end-of-file data segment in internal memory, parameter information includes characterized data segment positional information in Internet video and data amount information；When playing Internet video, according to the parameter information of the data segment cached in internal memory, find file header data segment, and according to metadata, played file head data segment, due to without re-downloading file header data segment, it is greatly accelerated rising of Internet video and broadcasts speed, improve Consumer's Experience.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of method playing Internet video and terminal unit.
Background technology
Universal along with network technology and smart machine, video player has become must in intelligent television and smart mobile phone
Few function, user can obtain the Streaming Media such as video, audio frequency by video player from the webserver, and at Intelligent electric
Depending on or smart mobile phone on play, therefore, video player is widely applied in life.
In addition to network speed, the caching mechanism of downloading of video player is also to affect rising of video player to broadcast speed
Key factor, and rising of video player is broadcast speed and is directly influenced Consumer's Experience.With Android 5.1 (Android 5.1) version
As a example by the NuPlayer player of middle use, intelligent television passes through HTML (Hypertext Markup Language) (HyperText Transfer
Protocol, is called for short HTTP) from network, the Internet video of download can be buffered in the NuCache of NuPlayer player,
NuCache is the internal memory in NuPlayer player for data cached section, and its structure is as it is shown in figure 1, NuCacheOffset table
Showing the original position of the data segment cached in NuCache, TotalSize represents the heap(ed) capacity of NuCache.
When video player need play MP4 form Internet video time, video player rise broadcast before, need first under
Carry segment file head data and a segment file mantissa evidence of this Internet video, concrete: first to download one section of literary composition of this Internet video
Part head data, owing in NuCache, the data of caching are all continuous print, after reading and analyze this document head data, need to delete
The file header data cached, download a segment file mantissa evidence of this Internet video the most again, read and analyze this document tail, from
And get the metadata (Metadata) of this Internet video.
When Internet video commences play out, if the data of caching are that the original position from this Internet video is opened in NuCache
Begin, i.e. from 0 beginning, just can play as long as then amount of buffered data is enough；If the data of caching are not in NuCache
Starting from the original position of this Internet video, such as, in NuCache, the data of caching are segment file mantissa evidences, owing to broadcasting
Need the original position from this Internet video to start to read data when putting, then need to empty the data cached in NuCache,
Again start to download data from the original position of this Internet video, so may result in the repeated downloads of data, extend network
Rising between sowing time of video, thus reduce Consumer's Experience.
Summary of the invention
Embodiments provide a kind of method playing Internet video and terminal unit, be used for solving existing network and regard
Frequency plays problem long between sowing time.
First aspect, it is provided that a kind of method playing Internet video, including:
After receiving play instruction, according to indicated by described play instruction play Internet video file header data segment and
End-of-file data segment, gets the metadata of described Internet video, and caches described file header in the internal memory of video player
Data segment and described end-of-file data segment, wherein, record parameter information and the institute of described file header data segment in described internal memory
Stating the parameter information of end-of-file data segment, described parameter information includes characterized data segment position in described Internet video
Information and data amount information；
When playing described Internet video, according to the parameter information of the data segment cached in described internal memory, find described
File header data segment, and according to described metadata, play the described file header data segment found.
Second aspect, it is provided that a kind of computer-readable recording medium, wherein storage has executable program code, this journey
Sequence code is in order to realize the method described in first aspect.
The third aspect, it is provided that a kind of terminal unit, including:
Processing module, after being used for receiving play instruction, according to the Internet video play indicated by described play instruction
File header data segment and end-of-file data segment, get the metadata of described Internet video, and in the internal memory of video player
Cache described file header data segment and described end-of-file data segment, wherein, described internal memory records described file header data segment
Parameter information and the parameter information of described end-of-file data segment, described parameter information includes that characterized data segment is at described net
Positional information in network video and data amount information；
Playing module, for when playing described Internet video, according to the parameter of the data segment cached in described internal memory
Information, finds described file header data segment, and according to described metadata, plays the described file header data segment found.
In the method for embodiment of the present invention offer and terminal unit, after receiving play instruction, refer to according to described broadcasting
The file header data segment of the indicated Internet video play of order and end-of-file data segment, get first number of described Internet video
According to, and in the internal memory of video player, cache described file header data segment and described end-of-file data segment, and in described
Deposit the middle parameter information recording described file header data segment and the parameter information of described end-of-file data segment, due to by video playback
The memory virtual of device becomes multiple buffer area, and characterizes, by parameter information, the data segment that each buffer area is cached so that regard
The internal memory of player can cache discontinuous data segment frequently, thus after having resolved the file header data segment of Internet video,
Without deleting this document head data segment, so, when playing described Internet video, can be according to the data cached in described internal memory
The parameter information of section, finds described file header data segment and plays, due to without re-downloading file header data segment, the most greatly
Fast rising of Internet video broadcasts speed, improves Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the structural representation of the NuCache in NuPlayer player；
Fig. 2 is the schematic flow sheet of a kind of method playing Internet video in the embodiment of the present invention；
Fig. 3 A is the data structure schematic diagram of a kind of Internet video in the embodiment of the present invention；
Fig. 3 B is the data structure schematic diagram of the another kind of Internet video in the embodiment of the present invention；
Fig. 4 is the schematic diagram of a kind of terminal unit in the embodiment of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.Should be appreciated that described herein
Embodiment be merely to illustrate and explain the present invention, be not intended to limit the present invention.
In embodiment shown in Fig. 2, it is provided that a kind of method playing Internet video, described method includes:
S21, receive play instruction after, according to the file header data of Internet video play indicated by described play instruction
Section and end-of-file data segment, get the metadata of described Internet video, and cache described literary composition in the internal memory of video player
Part head data segment and described end-of-file data segment, wherein, record the parameter information of described file header data segment in described internal memory
With the parameter information of described end-of-file data segment, described parameter information includes that characterized data segment (alternatively referred to as data block) exists
Positional information in described Internet video and data amount information.
Concrete, after receiving play instruction, first download the literary composition of the indicated Internet video play of described play instruction
Part head data segment and end-of-file data segment, to get the metadata play needed for described Internet video, and store file header number
According to section and end-of-file data segment.
Wherein, the metadata of Internet video includes but not limited at least one in following information: video code model, sound
Frequently coded format, plays total duration, bit rate, frame per second etc..Video player needs the metadata according to Internet video, to download
The data segment of Internet video be decoded waiting and process, the Internet video downloaded with broadcasting.
Optionally, the data segment that the data segment characterized positional information in described Internet video can be characterized exists
Position in all data segments of described Internet video, it is also possible to be that the initial data in characterized data segment is at described network
Position in all data of video.
Illustrating, the positional information of described file header data segment can be that described file header data are in described Internet video
All data segments in position, it is also possible to be all numbers in described Internet video of the initial data in described file header data
Position according to.
In this step, according to file header data segment and the end-of-file data of Internet video, described network video can be got
The metadata of frequency.
S22, when playing described Internet video, according to the parameter information of the data segment cached in described internal memory, find
Described file header data, and according to described metadata, play described file header data.
In the embodiment of the present invention, after receiving play instruction, according to the network video play indicated by described play instruction
The file header data segment of frequency and end-of-file data segment, get the metadata of described Internet video, and in video player
Deposit middle caching described file header data segment and described end-of-file data segment, wherein, described internal memory records described file header number
According to parameter information and the parameter information of described end-of-file data segment of section, multiple slow owing to the memory virtual of video player is become
Deposit district, and characterize, by parameter information, the data segment that each buffer area is cached so that be permissible in the internal memory of video player
Cache discontinuous data, thus after having resolved the file header data segment of Internet video, it is not necessary to delete this document head data segment,
So, when playing described Internet video, can find described according to the parameter information of the data segment cached in described internal memory
File header data segment is also play, owing to without re-downloading file header data segment, being greatly accelerated rising of Internet video and broadcasting speed,
Improve Consumer's Experience.
In the embodiment of the present invention, described method also includes:
In the playing process of described Internet video, download described Internet video except described file header data segment and described
Other data segments outside end-of-file data segment；
The data segment downloaded is buffered in described internal memory, and the ginseng of the data segment that record is downloaded in described internal memory
Number information；
After playing the current data section of described Internet video, according to the position of each data segment of caching in described internal memory
Information, finds the next data segment of current data section, and according to described metadata, plays described next data segment.
Concrete, during described Internet video is play, constantly download other data segments of described Internet video, so working as
After front data segment plays, can directly play next data segment, improve the seriality play, thus improve user and watch body
Test.
In force, the data segment downloaded is buffered in described internal memory, including the implementation that following two is possible:
If the data volume sum of the data segment that the data volume of the data segment that mode 1 is downloaded has cached with described internal memory is big
In or the maximum amount of data that can cache equal to described internal memory, first from described internal memory, delete data start successively and lean on most
Before data segment so that the data volume sum of data segment that the data volume of the data segment downloaded has cached with described internal memory is less than
The maximum amount of data that described internal memory can cache；Again by the parameter information of the data segment downloaded with the data segment downloaded, slow
Exist in described internal memory.
In which, the data volume sum of the data segment cached when newly downloaded data bin data amount and described internal memory surpasses
When crossing the maximum amount of data that described internal memory can cache, first delete the data segment that the part cached in described internal memory has been play,
Again newly downloaded data segment is cached in described internal memory.Due to the data segment the play position one in described Internet video
As more forward than position in described Internet video of the data segment do not play, therefore, it can the position according to the data segment cached
Confidence breath selects the data segment deleted, such as, from the data segment cached, delete the position in described Internet video successively
Put the most forward data segment so that the data volume of data segment that cached of the data volume of the data segment downloaded and described internal memory it
With the maximum amount of data that can cache less than described internal memory.
If the data volume sum of the data segment that the data volume of the data segment that mode 2 is downloaded has cached with described internal memory is big
In or the maximum amount of data that can cache equal to described internal memory, first from described internal memory, delete all data segments play；Again
By the parameter information of the data segment downloaded with the data segment downloaded, it is buffered in described internal memory.
In which, the data volume sum of the data segment cached when newly downloaded data bin data amount and described internal memory surpasses
When crossing the maximum amount of data that described internal memory can cache, first delete the whole data segments play cached in described internal memory,
Again newly downloaded data segment is cached in described internal memory.
In which, the data segment cached can be play the most and be marked in described internal memory, believe according to labelling
Breath, from the data segment cached, deletes the data segment partly or entirely play.
Mode 3, described method also include:
After playing any data section of described Internet video, from described internal memory, delete described any data section.
In which, after playing the data segment cached in described internal memory, just deleting from described internal memory should every time
Data segment, so that can cache newly downloaded data segment in described internal memory.
Based on any of the above-described embodiment, optionally, the internal memory of described video player caches in the form of a list and downloads
Data segment and the parameter information of data segment downloaded, every record in described list includes a data segment downloaded
Parameter information with this data segment.
Illustrating, a kind of possible way of realization of described list is as shown in table 1:
Wherein, NuCacheOffset1 represents the positional information of first data segment of caching in described internal memory,
TotalSize1 represents the data volume of first data segment of caching in described internal memory；NuCacheOffset2 represents described internal memory
The positional information of second data segment of middle caching, TotalSize2 represents the number of second data segment of caching in described internal memory
According to amount；The rest may be inferred.
Based on any of the above-described embodiment, optionally, at the data form of Internet video in the embodiment of the present invention, can use
The optional mode of the following two kinds:
Mode one, voice data and the mode of video data alternating sequence.
Embodiment shown in Fig. 3 A gives the data form of arbitrary Internet video, it is assumed that this Internet video is divided into
M segment data, V1 represents the video data that first data segment that this Internet video comprises is corresponding, and A1 represents first data segment pair
The voice data answered；V2 represents the video data that second data segment that this Internet video comprises is corresponding, and A2 represents the second number
According to the voice data that section is corresponding, the rest may be inferred.
Mode two, voice data and video data tactic mode respectively.
Embodiment shown in Fig. 3 B gives the data form of arbitrary Internet video, it is assumed that this Internet video is divided into
M segment data, V1～Vm represents the video data that each data segment that this Internet video comprises is corresponding respectively, A1～Am represents this respectively
All voice datas that each data segment that Internet video comprises is corresponding.
In which, it is assumed that 1～50M is video data, and 51～70M is the voice data that this video data is corresponding, if adopting
Play mechanism with existing, it is assumed that the maximum amount of data that internal memory can cache is 80M, first pass through HTTP and download 50M video from network
Data buffer storage is in the internal memory of video player, in the 50M video data then downloaded by the internal memory of described video player
Part (such as 1～20M) data copy to as described in video player broadcasting caching in be decoded wait process, due to broadcasting regard
Frequently also need to voice data time, so needing first to remove the data downloaded in internal memory, then by HTTP from network download 51～
The voice data of 70M, and regard described in the voice data (being assumed to be 51～60M) corresponding with the video data of 1～20M is copied to
Frequently the broadcasting caching of player is decoded waiting and processes, thus can play this partial video.Continue to play 21～50M
During Internet video, owing to the internal memory of the most described video player not had the video data of 1～50M, need to remove
The voice data of 51～70M and again download from network 21～50M video data, thus add caching number of times and video is broadcast
The buffer time put.The scheme provided according to the embodiment of the present invention, owing to can cache discontinuous data in internal memory, then may be used
Video data and the voice data of 51～70M by 1～50M are buffered in internal memory, and identify each data segment affiliated
Positional information in Internet video and data amount information, it is assumed that the video data of 1～50M is first data block in internal memory,
The voice data of 51～70M delays for second data block in internal memory, so, after playing the video data of 1～20M, elder generation
Inquiry data block belonging to 21～50M from internal memory, after determining that the data block belonging to 21～50M is first data block, then
First data block reads the video data of 21～50M, owing to need not re-download data, decreases caching number of times
Buffer time with video playback.
Below as a example by NuPlayer player, in a kind of video player that the embodiment of the present invention is provided, is play network
The method of video is described in detail.
NuCache in NuPlayer player is considered as a list (NuCacheList), can cache discontinuous
Data segment, NuCache is configured with two parameters of NuCacheOffset (original position) and TotalSize (total size), come
Characterize the different pieces of information section cached.NuCache can cache the data segment started with different Offset (original position), its
In, NuCacheOffsetN characterizes the initial data all data in described Internet video in the n-th data segment cached
The positional information of section, TotalSizeN characterizes the total size of data volume that the n-th data segment cached is corresponding.
After receiving play instruction, and Internet video rises before broadcasting, and is downloaded the net needing to play from network by HTTP
The file header data segment of network video and end-of-file data segment, to read the Metadata of described Internet video, and in NuCache
Cache file head data segment and end-of-file data segment.
Concrete, when instantly carrying file header data segment, this document head data segment is buffered in NuCacheList
In NuCacheList (1) corresponding for NuCacheOffset1 with TotalSize1, and by NuCacheOffset1 labelling this article
The positional information of part head data segment, and by the data volume of TotalSize1 labelling this document head data segment；Analyze file
After head data segment, download end-of-file data segment, and this document tail data segment is buffered in NuCacheList
In NuCacheList (2) corresponding for NuCacheOffset2 with TotalSize2, and by NuCacheOffset2 labelling this article
The positional information of part tail data segment, and by the data volume of TotalSize2 labelling this document tail data segment.
Internet video plays sowing time, because being buffered in NuCache when reading file header data segment before
NuCacheList (1) suffers, and therefore, directly reads this document head data segment from NuCache, owing to can directly make
With, therefore need not empty NuCache and re-download this document head data segment, so under network bandwidth certain condition, significantly
Accelerate rising of network file and broadcast speed, improve Consumer's Experience.
Said method handling process can realize with software program, and this software program can be stored in storage medium, when
When the software program of storage is called, perform said method step.
Based on same inventive concept, in the embodiment shown in Fig. 4, it is provided that a kind of terminal unit, due to this terminal unit
The method that the principle of solution problem provides to the embodiment shown in Fig. 2 is similar, the therefore enforcement side of may refer to of this terminal unit
The enforcement of method, repeats no more in place of repetition.Described terminal unit includes:
Processing module 41, after being used for receiving play instruction, according to the Internet video play indicated by described play instruction
File header data segment and end-of-file data segment, get the metadata of described Internet video, and at the internal memory of video player
Middle caching described file header data segment and described end-of-file data segment, wherein, record described file header data in described internal memory
The parameter information of section and the parameter information of described end-of-file data segment, described parameter information includes that characterized data segment is described
Positional information in Internet video and data amount information；
Playing module 42, for when playing described Internet video, according to the ginseng of the data segment cached in described internal memory
Number information, finds described file header data segment, and according to described metadata, plays described file header data segment.
In the embodiment of the present invention, owing to the memory virtual of video player is become multiple buffer area, and pass through parameter information
Characterize the data segment that each buffer area is cached so that the internal memory of video player can cache discontinuous data segment,
Thus after having resolved the file header data segment of Internet video, it is not necessary to delete this document head data segment, so, play described net
During network video, described file header data segment can be found also according to the parameter information of the data segment cached in described internal memory
Play, owing to without re-downloading file header data segment, being greatly accelerated rising of Internet video and broadcasting speed, improve user's body
Test.
In a kind of possible embodiment, described processing module is additionally operable to:
In the playing process of described Internet video, download described Internet video except described file header data segment and described
Other data segments outside end-of-file data segment；The data segment downloaded is buffered in described internal memory, and remembers in described internal memory
The parameter information of the data segment that record is downloaded；
Accordingly, described playing module is additionally operable to: after the current data section of described Internet video plays, according to described
The positional information of each data segment of caching in internal memory, finds the next data segment of current data section, and according to described unit number
According to, play described next data segment.
As a kind of possible embodiment, described processing module specifically for:
If the data volume sum of the data segment that the data volume of the data segment downloaded and described internal memory have cached more than or etc.
In the maximum amount of data that described internal memory can cache, first from described internal memory, delete the number that data start is the most forward successively
According to section, so that the data volume sum of data segment that cached of the data volume of the data segment downloaded and described internal memory is less than in described
Deposit the maximum amount of data that can cache；Again by the parameter information of the data segment downloaded with the data segment downloaded, it is buffered in institute
State in internal memory；Or
If the data volume sum of the data segment that the data volume of the data segment downloaded and described internal memory have cached more than or etc.
In the maximum amount of data that described internal memory can cache, first from described internal memory, delete all data segments play；Again by under
The data segment carried and the parameter information of the data segment downloaded, be buffered in described internal memory.
As alternatively possible embodiment, described processing module specifically for:
After described playing module plays any data section of described Internet video, from described internal memory, delete described appointing
One data segment.
Based on any of the above-described embodiment, in a kind of possible embodiment, under described internal memory caches in the form of a list
The data segment carried and the parameter information of the data segment downloaded, every record in described list includes the data downloaded
Section and the parameter information of this data segment.
In the present embodiment, processing module 41 and playing module 42 are to present with the form of functional module.Here " mould
Block " can refer to ASIC (application-specific integrated circuit, ASIC), circuit,
Perform one or more software or the processor of firmware program and memorizer, integrated logic circuit, and/or other can provide
State the device of function.In a simple embodiment, those skilled in the art is it is contemplated that processing module 41 can be passed through
The processor of computer equipment, memorizer and input interface realize, and playing module 42 can be by the process of computer equipment
Device and memorizer realize.
The terminal unit that the embodiment of the present invention provides can be that mobile phone, panel computer, notebook computer etc. have network video
Frequently the equipment of playing function.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware
Execute the form of example.And, the present invention can use at one or more computers wherein including computer usable program code
The upper computer program product implemented of usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.)
The form of product.
The present invention is with reference to method, equipment (system) and the flow process of computer program according to embodiments of the present invention
Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real
The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or
The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. the method playing Internet video, it is characterised in that described method includes:
After receiving play instruction, according to file header data segment and the file of the Internet video play indicated by described play instruction
Tail data segment, gets the metadata of described Internet video, and caches described file header data in the internal memory of video player
Section and described end-of-file data segment, wherein, record the parameter information of described file header data segment and described literary composition in described internal memory
The parameter information of part tail data segment, described parameter information includes characterized data segment positional information in described Internet video
And data amount information；
When playing described Internet video, according to the parameter information of the data segment cached in described internal memory, find described file
Head data segment, and according to described metadata, play described file header data segment.
2. the method for claim 1, it is characterised in that described method also includes:
In the playing process of described Internet video, download described Internet video except described file header data segment and described file
Other data segments outside tail data segment；
The data segment downloaded is buffered in described internal memory, and the parameter letter of the data segment that record is downloaded in described internal memory
Breath；
After playing the current data section of described Internet video, according to the position letter of each data segment of caching in described internal memory
Breath, finds the next data segment of current data section, and according to described metadata, plays described next data segment.
3. method as claimed in claim 2, it is characterised in that the data segment downloaded is buffered in described internal memory, including:
If the data volume sum of the data segment that the data volume of the data segment downloaded and described internal memory have cached is more than or equal to institute
State the maximum amount of data that internal memory can cache, first from described internal memory, delete the data segment that data start is the most forward successively,
So that the data volume sum of data segment that the data volume of the data segment downloaded and described internal memory have cached is less than described internal memory energy
The maximum amount of data of enough cachings；Again by the parameter information of the data segment downloaded with the data segment downloaded, it is buffered in described interior
In depositing；Or
If the data volume sum of the data segment that the data volume of the data segment downloaded and described internal memory have cached is more than or equal to institute
State the maximum amount of data that internal memory can cache, first from described internal memory, delete all data segments play；To be downloaded again
Data segment and the parameter information of the data segment downloaded, be buffered in described internal memory.
4. method as claimed in claim 2, it is characterised in that described method also includes:
After playing any data section of described Internet video, from described internal memory, delete described any data section.
5. the method as described in any one of Claims 1 to 4, it is characterised in that under described internal memory caches in the form of a list
The data segment carried and the parameter information of the data segment downloaded, every record in described list includes the data downloaded
Section and the parameter information of this data segment.
6. a terminal unit, it is characterised in that described equipment includes:
Processing module, after being used for receiving play instruction, according to the file of the Internet video play indicated by described play instruction
Head data segment and end-of-file data segment, get the metadata of described Internet video, and cache in the internal memory of video player
Described file header data segment and described end-of-file data segment, wherein, record the ginseng of described file header data segment in described internal memory
Number information and the parameter information of described end-of-file data segment, described parameter information includes that characterized data segment is at described network video
Positional information in Pin and data amount information；
Playing module, for when playing described Internet video, according to the parameter information of the data segment cached in described internal memory,
Find described file header data segment, and according to described metadata, play described file header data segment.
7. terminal unit as claimed in claim 6, it is characterised in that described processing module is additionally operable to: in described Internet video
Playing process in, download described Internet video in addition to described file header data segment and described end-of-file data segment other number
According to section；The data segment downloaded is buffered in described internal memory, and the parameter of the data segment that record is downloaded in described internal memory
Information；
Described playing module is additionally operable to: after the current data section of described Internet video plays, and caches according in described internal memory
The positional information of each data segment, find the next data segment of current data section, and according to described metadata, play described
Next data segment.
8. terminal unit as claimed in claim 7, it is characterised in that described processing module specifically for:
If the data volume sum of the data segment that the data volume of the data segment downloaded and described internal memory have cached is more than or equal to institute
State the maximum amount of data that internal memory can cache, first from described internal memory, delete the data segment that data start is the most forward successively,
So that the data volume sum of data segment that the data volume of the data segment downloaded and described internal memory have cached is less than described internal memory energy
The maximum amount of data of enough cachings；Again by the parameter information of the data segment downloaded with the data segment downloaded, it is buffered in described interior
In depositing；Or
If the data volume sum of the data segment that the data volume of the data segment downloaded and described internal memory have cached is more than or equal to institute
State the maximum amount of data that internal memory can cache, first from described internal memory, delete all data segments play；To be downloaded again
Data segment and the parameter information of the data segment downloaded, be buffered in described internal memory.
9. terminal unit as claimed in claim 7, it is characterised in that described processing module specifically for:
After described playing module plays any data section of described Internet video, from described internal memory, delete described arbitrary number
According to section.
10. the terminal unit as described in any one of claim 6～9, it is characterised in that described internal memory caches in the form of a list
The data segment downloaded and the parameter information of the data segment downloaded, every record in described list includes that one has been downloaded
Data segment and the parameter information of this data segment.
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