CN104219537B - The method, apparatus and system of video data processing - Google Patents
The method, apparatus and system of video data processing Download PDFInfo
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- CN104219537B CN104219537B CN201310215595.8A CN201310215595A CN104219537B CN 104219537 B CN104219537 B CN 104219537B CN 201310215595 A CN201310215595 A CN 201310215595A CN 104219537 B CN104219537 B CN 104219537B
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Abstract
The invention discloses the method, apparatus and system of a kind of processing of video data, are related to audio and video process field, can solve the problems, such as that buffer time is long for the first time in the case where not being sliced to video file.The method of the present invention includes：Original video files are split as head file and video data file by network side server；Head file is compressed, compression head file is obtained；Compression head file and video data file are merged into compressed video file；Compressed video file is sent to client.Client receives the compressed video file that network side server is sent, and compressed video file includes compression head file and video data file, wherein compression head file is compressed head file；After receiving compression head file, compression head file is unziped it, head file is obtained；The video data file of receipt of subsequent is handled according to head file.During obtaining Online Video data.
Description
Technical field
The present invention relates to method, apparatus and system that audio and video process field more particularly to a kind of video data are handled.
Background technology
Currently, dynamic image expert group 4 (Moving Pictures Experts Group-4, abbreviation MP4) etc. is common
Video file format, file are made of header information and video data two parts.When playing the Online Video of this format,
Client must first be downloaded header information, then handle the header information of download, finally could be to video
Data are decoded broadcasting.When header information is excessive, the time of client downloads header information can accordingly extend, and thus increase
The time buffered for the first time.Wherein, buffer time refers to playing the video moment to client terminal playing first from client request for the first time
Duration between the frame video image moment.
To shorten buffer time for the first time, the usage experience of user is improved, more widespread practice is at present：It is taken in network side
It is engaged in device, is the equal multiple sub-video files of duration by video file cutting, each sub-video file includes a sub- head
Information and a sub-video data.Client downloads each sub-video file successively from network side server end, and to download
Sub- header information is handled, and last sub-video data is decoded broadcasting.Due to the size and video data of header information
Duration between there are proportional relations, therefore the size of header information can be reduced by way of cutting sub-video file, into
And reduce and download taking for header information, so as to shorten the time buffered for the first time.
During above-mentioned video file is sliced, inventor has found that at least there are the following problems in the prior art：Video
File is sliced the number that can increase video file, the complexity for increasing network side server management, storing video file.In addition exist
Client-side, due between sub-video data exist linking, in playing video data it is possible that picture bounce,
The nonsynchronous problem of audio and video, client need the linking between sub-video data to do specially treated, increase video data
Intractability.
Invention content
The embodiment of the present invention provides a kind of method, apparatus and system of video data processing, can be not to video file
In the case of slice, solve the problems, such as that buffer time is long for the first time.
In a first aspect, an embodiment of the present invention provides a kind of methods of video data processing, including：
Original video files are split as head file and video data file；
The head file is compressed, compression head file is obtained；
The compression head file and the video data file are merged into compressed video file；
The compressed video file is sent to client.
Second aspect, the embodiment of the present invention additionally provide a kind of method of video data processing, including：
Receive network side server send compressed video file, the compressed video file include compression head file with
And video data file, wherein the compression head file is compressed head file；
After receiving the compression head file, the compression head file is unziped it, obtains head file；
The video data file of receipt of subsequent is handled according to the head file.
The third aspect, the embodiment of the present invention additionally provide a kind of device of video data processing, and described device is the first dress
It sets, the first device includes：
Split cells, for original video files to be split as head file and video data file；
Compression unit obtains compression head for being compressed to the head file that the split cells is split out
File；
Combining unit, the compression head file and the split cells for compressing the compression unit are split
The shown video data file gone out merges into compressed video file；
Transmission unit, the compressed video file for merging the combining unit are sent to client.
Fourth aspect, the embodiment of the present invention additionally provide a kind of device of video data processing, and described device is the second dress
It sets, the second device includes：
Receiving unit, the compressed video file for receiving network side server transmission, the compressed video file include
Head file and video data file are compressed, wherein the compression head file is compressed head file；
Decompression unit, for after the receiving unit receives the compression head file, to the compression head
File unzips it, and obtains head file；
Processing unit, the head file for being decompressed according to the decompression unit is to the receiving unit
The video data file of receipt of subsequent is handled.
5th aspect, the embodiment of the present invention additionally provide a kind of system of video data processing, and the system comprises networks
Side server and client, wherein include the first device as described in the aforementioned third aspect, institute in the network side server
It states in client comprising the second device as described in aforementioned fourth aspect.
The method, apparatus and system of video data processing provided in an embodiment of the present invention, can tear original video files open
It is divided into head file and video data file, then head file is compressed, obtains compression head file, it then will compression
Head file and video data file merge into compressed video file, and compressed video file is finally sent to client.Visitor
Family end receives the compressed video file that network side server is sent, after receiving compression head file, to compressing head file
It unzips it, obtains head file, then the video data file of receipt of subsequent is handled according to head file.This hair
The method, apparatus and system for the video data processing that bright embodiment provides, can be by reducing head to the compression of head file
File size downloads taking for head file to reduce.With in the prior art by video file be sliced reduce head text
The mode of part size is compared, and can not be done slice and specially treated to video file, can simply and effectively be shortened and buffer for the first time
Time.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart for the method that video data is handled in the embodiment of the present invention；
Fig. 2 is the flow chart for the method that another video data is handled in the embodiment of the present invention；
Fig. 3 is the interaction figure that video data is handled in the embodiment of the present invention；
Fig. 4 is the schematic diagram of original video files in the embodiment of the present invention；
Fig. 5 is the schematic diagram of compressed video file in the embodiment of the present invention；
Fig. 6 is the schematic diagram that network side server handles original video files in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of first device in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another first device in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of second device in the embodiment of the present invention；
Figure 10 is the schematic diagram for the system that video data is handled in the embodiment of the present invention.
Specific implementation mode
Below in conjunction with the attached drawing in the present embodiment, the technical solution in the present embodiment is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the scope of protection of the invention.
For the buffer time for the first time for reducing when user watches Online Video, a kind of video data processing is present embodiments provided
Method, this method be applied to network side server side.As shown in Figure 1, the method includes：
101, original video files are split as head file and video data file by network side server.
Original video files described in the present embodiment are the video data of client request, and network side server is found
After original video files, original video files are split as head file and video data file.The head file includes regarding
Frequency according to header information data block, such as the resolution ratio of video, coded format, code check, crucial frame index etc..Network-side service
Device splits out head file from original video files, subsequently to be compressed to head file.
102, network side server compresses head file, obtains compression head file.
Network side server is the purpose of head compressing file to reduce the size of head file, so as to shorten client
Download taking for head file.
103, network side server will compress head file and video data file merges into compressed video file.
After obtaining compression head file, network side server will compress head file and video data file is merged into
Compressed video file, to be subsequently sent to client.
104, compressed video file is sent to client by network side server.
Compressed video file is sent to client by network side server, so that client is to the pressure in compressed video file
Contracting head file unzips it, and according to the head file obtained after decompression to subsequently received video data file into
Row decoding process, to play Online Video.
In the present embodiment, the video type of client request is Online Video, and network side server is in the form of Media Stream
The compressed video file for including compression head file is sent to client.Client is firstly received compression head file, then
The video data file of receipt of subsequent is handled according to the header information in compression head file.
In the prior art, network side server is after the video data request for receiving client, directly by original video
File is sent to client.Client is firstly the need of head file is received, then according to head file to the video of receipt of subsequent
Data file is handled.Due in video file, the size of head file usually with the proportional relationship of the duration of video, because
As soon as this when the longer video of client request section duration, client receives the time-consuming corresponding increase of (download) head file,
Thereby increase the time buffered for the first time.
The method of video data processing provided in this embodiment, can be by reducing head file to the compression of head file
Size to reduce taking for client downloads head file, and then shortens the time buffered for the first time.Meanwhile the present embodiment carries
The method of the video data processing of confession can simplify network side server processing, storage regards without being sliced to video file
The complexity of frequency evidence.
As the opposite end method of method shown in corresponding diagram 1, the present embodiment additionally provides a kind of method of video data processing,
This method is applied to client-side.As shown in Fig. 2, the method includes：
201, client receives the compressed video file that network side server is sent.
Compressed video file includes compression head file and video data file, wherein the compression head file is pressure
Head file after contracting.Network side server sends compressed video file in the form of Media Stream to client, and client first connects
It receives compression head file and then receives video data file.
202, client unzips it compression head file after receiving compression head file, obtains head text
Part.
Since network side server compresses head file before sending compressed video file, so receiving
It is unziped it after compression head file firstly the need of will compress head file, acquisition head file.
203, client is handled the video data file of receipt of subsequent according to head file.
Client the processing such as is decoded according to head file to the video data file of receipt of subsequent, to video into
Row plays.
In the present embodiment, since the video type of client request is Online Video, client receives video data
File is a lasting process, is not to execute step again after all receiving head file and video data file
202.Client receive compression head file after start receive video data file, during decompressing head file with
And video data file is persistently received after the completion of head file decompression, and according to the head file after decompression to connecing in real time
The video data file of receipts is handled.
The method of video data processing provided in this embodiment, can be by reducing head file to the compression of head file
Size to reduce taking for client downloads head file, and then shortens the time buffered for the first time.In addition, the present embodiment carries
The method of the video data processing of confession is not necessarily to carry out specially treated to the sub-video file after slice, can simplify processing video counts
According to complexity and save the expense of client respective handling resource.
As the detailed description to method shown in Fig. 1 and Fig. 2, the present embodiment additionally provides a kind of side of video data processing
Method, the method are related to network side server and local client.As shown in figure 3, the method includes：
301, client sends video data request to network side server.
Video data request is for server acquisition request video file.
302, network side server asks to search original video files according to video data.
Network side server is referred to as original video files according to the video file that video data request is found.
303, original video files are split as head file and video data file by network side server.
Example, as shown in figure 4, original video files include the video of the header data and 10000 bits of 10 bits
Data.Network side server splits original video files, obtains the video of the head file and 10000 bits of 10 bits
Data file.
Original video files are split as head file and video data file by network side server, are specifically included：
303a, network side server create head file and video data file.
Network side server calls CreateFile functions that head file and video data file, the head of establishment is respectively created
Portion's file and video data file are respectively used to load the header data subsequently split out from original video files and video data.
303b, network side server distinguish read head data and video data from original video files.
Network side server calls OpenFile functions to open original video files first, then calls ReadFile functions
Read head data and video data are distinguished from original video files.
Still by taking Fig. 4 as an example, network side server calls OpenFile functions to open original video files as shown in Figure 4,
Then ReadFile functions are called to read the header data of preceding 10 bit and rear 10000 bit from original video files
Video data.
303c, network side server will be in header data write head files.
Network side server calls WriteFile functions by the header data write head file of 10 bits.
303d, network side server write video data into video data file.
Network side server calls WriteFile functions that video data file is written in the video data of 10000 bits.By
This obtains a head file and the video counts for including 10000 bit video datas for including 10 bit header datas
According to file.
It should be noted that the present embodiment distinguishes step 303c and step 303d only for ease of statement, in practical application, net
Network side server can also first carry out step 303d, then execute step 303c, or be performed simultaneously step 303c and step 303d,
The present embodiment is not limited the execution sequence of network side server.Similar, network side server can also first carry out
Then step 303b read heads data and video data execute step 303a and create head file and video data file again,
Or it is performed simultaneously step 303a and step 303b.
304, network side server compresses head file according to Zlib functions library, obtains compression head file.
After obtaining head file and video data file, head file is pressed in network side server Zlib functions library
Contracting obtains compression head file.For example, network side server is by the head file pressure of the 10 bit sizes obtained in step 303
It is condensed to the compression head file of only 3 bit sizes.
It illustrates using Zlib functions library as compression means in the present embodiment, in practical application, head file is carried out
The mode of compression is without being limited thereto.
Optionally, it is that head file cutting can also be more by buffer time, network side server for the first time for further saving
A sub- clip segment is compressed.Client can solve the compression sub-piece after often receiving a compression sub-piece
Compression unzips it again after receiving entire compression head file without waiting for whole.Specifically：Network side server is by head
Portion's file cutting is at least two sub-pieces, is then compressed respectively according at least two sub-piece of Zlib functions library pair.Example
Such as, network side server is by the sub-piece of 3 section of 4 bit of head file cutting of 12 bit sizes, then according to Zlib functions library
By the compression sub-piece of 1 bit size of each sub-piece boil down to.
Optionally, to be further reduced taking for client downloads video file, network side server can also basis
Video data file is compressed in Zlib functions library, obtains compressed video data file.Herein it should be noted that this step
Described in compressed video data file it is different from the compressed video file merged in subsequent step, the compression video counts
Refer to the file obtained after being compressed to video data file according to file, and compressed video file refers to then comprising compression head
The upper level file of file and unpressed video data file, or to include compression head file and compression video counts
According to the upper level file of file, i.e. compressed video file only indicates to include the file for compressing head file.
305, network side server will compress head file and video data file merges into compressed video file.
Network side server will compress head file and video data file merges into compressed video file, specific to wrap
It includes：
305a, network side server create compressed video file.
Similar with 303a, network side server calls CreateFile one compressed video file of function creation, for filling
Carry the header data subsequently read and video data.
305b, network side server read compressed header data from compression head file.
Network side server calls ReadFile functions to read compressed 3 bit head number from compression head file
According to.
305c, the network side server reading video data from video data file.
Network side server calling ReadFile functions read the video data of 10000 bits from video data file.
Optionally, if network side server also compresses video data file in step 303, in this step
Middle network side server calls ReadFile functions to read compressed video data from compressed video data file.
Compressed header data and video data are respectively written into compressed video file by 305d, network side server
Designated position.
Network side server can first call WriteFile functions that compressed 3 bit header data is written to compression
In video file, then calls WriteFile functions that video data (or compressed video data) is written to compression and regard
In frequency file, thus to obtain compressed video file.Write sequence in the present embodiment is only as illustrating to use, not as to reality
The restriction of application.
Optionally, when network side server carries out sectional compression to head file, network side server will in this step
All compression sub-pieces compressed are all written in corresponding compressed video file according to original putting in order compresses head
On the position of file.
Preferably, it is consistent with existing standard video file format, network side server can will be after the compression of reading
Header data write the video data of reading before, compressed video file as shown in Figure 5 is formed, so that client connects first
Compression head file is received, and compression head file is handled.
It should be noted that the present embodiment distinguishes step 305b and step 305c only for ease of statement, in practical application, net
Network side server can also first carry out step 305c, then execute step 305b, or be performed simultaneously step 305b and step 305c,
The present embodiment is not limited the execution sequence of network side server.
As shown in fig. 6, corresponding step 303 is to step 305, network side server original video files first are split as head
File and video data file.Then the head file splitted out is compressed, obtains compression head file.Last network
Side server will compress head file and video data file merges into compressed video file.
306, compressed video file is sent to client by network side server.
Optionally, network side server can send video data in client to the processing of original video files and ask it
Preceding execution, that is, network side server sequentially executes stored all original video files above-mentioned steps 302 to step
305, compressed video file is obtained, and store to compressed video file.Client sends video data and asks (step 301)
When, network side server searches the compressed video file of user's request, then directly executes step 306, the compression that will be found
Video file is sent to client.It is in this corresponding steps flow chart sequence：Step 302, step 303, step 304, step
305, step 301, step 306 ....
307, client receives compression head file, is unziped it, is obtained to compression head file according to Zlib functions library
Obtain head file.
Client is firstly received compression head file during receiving compressed video file shown in fig. 5, uses
Zlib functions library unzips it compression head file, obtains head file.For example, client receives the compression of 3 bits
After head file, the compression head file is unziped it according to Zlib functions library, obtains the head file of 10 bits.
Optionally, when network side server carries out sectional compression to head file, client receives at least two compressions
Sub-piece, at least two compressions sub-piece form the compression head file, after often receiving a compression sub-piece,
The compression sub-piece is unziped it according to Zlib functions library.For example, client is receiving each 1 bit compression sub-piece
When, the sub-piece for being condensed to 4 bits is decompressed according to Zlib functions library.
It is illustrated using Zlib functions library as decompression means in the present embodiment, in practical application, to compression head text
The mode that part unzips it is without being limited thereto.
308, the head file after decompression is sent to player and handled by client.
The player is the playout software in client, and head file is sent to player so as to player by client
Subsequently received video data file is decoded according to header datas such as head file intermediate-resolution rate, coded formats and is broadcast
Put processing.
Optionally, when client receives multiple compression sub-pieces respectively, client every solution extrude a sub-piece when,
The sub-piece is just sent to player.
309, the video data of reception is sent to player and handled by client, while continuing to video data text
Video data in part.
Client starts to receive video data, and the video counts that will constantly receive after receiving compression head file
According to player is sent to, broadcasting is decoded to video data according to header data by player.
Bit value and Fig. 4, Fig. 5 involved in above example are only that example illustrates to use, not as to reality
The limitation of concrete numerical value in.
The method of video data processing provided in this embodiment can carry out the video data of the formats such as including MP4, MOV
Compressed and decompressed processing.By taking the video data of MP4 formats as an example, related experiment shows to use the compressed head file phases of Zlib
Than the size that uncompressed head file can reduce one third, in the case where transmission bandwidth is constant, client downloads head
Taking for portion's file can shorten one third.In addition, network side server can also before clients request video data,
Compression processing is carried out in advance to all original video files of storage, further saves the consumption that client obtains compressed video file
When.And the decompression of client takes time-consuming can be ignored of opposing headers file download, it is possible thereby to will buffer for the first time
Time reduces one third, substantially improves the viewing experience of user.
Head file cutting can also be multiple sub-pieces by third, the method for video data processing provided in this embodiment
Section, and Zlib compressions are carried out respectively to multiple sub-pieces.Client receive one compression sub-piece after can to its into
Row decompresses and is sent to player, without waiting for what is unziped it again after all downloading all compression head files
Step, it is possible thereby to further shorten the time buffered for the first time.
Finally, the method for video data processing provided in this embodiment is applied equally to video file microtomy, only
Process object is replaced with into sub-video file, sub- head file and sub-video data file, realization method can join
Realized that details are not described herein again according to the mode of above-mentioned Fig. 1 to Fig. 3.
The realization of method with reference to shown in above-mentioned Fig. 1 or Fig. 3, the present embodiment additionally provide a kind of dress of video data processing
It sets, described device is first device, to be realized to Fig. 1 or shown in Fig. 3 methods.The first device can be located at net
There is data interaction relationship in the server of network side or independently of network side server but between network side server.Such as Fig. 7
It is shown, the first device 71, including split cells 711, compression unit 712, combining unit 713 and transmission unit 714,
In,
The split cells 711, for original video files to be split as head file and video data file；
The compression unit 712 is obtained for being compressed to the head file that the split cells 711 is split out
Head file must be compressed；
The combining unit 713, the compression head file for compressing the compression unit 712 and described tears open
The shown video data file that subdivision 711 is split out merges into compressed video file；
The transmission unit 714, the compressed video file for merging the combining unit 713 are sent to client
End.
Further, as shown in figure 8, the split cells 711 includes：
First creates subelement 811, for creating head file and video data file；
First reading subunit 812, for distinguishing read head data and video data from the original video files；
Institute is written in first write-in subelement 813, the header data for reading first reading subunit 812
In the head file for stating the establishment of the first establishment subelement 811；
The first write-in subelement 813 is additionally operable to the video data for reading first reading subunit 812
Described first is written to create in the video data file that subelement 811 creates.
Further, the compression unit 712 is obtained for being compressed to the head file according to Zlib functions library
Compress head file.
Further, the compression unit 712 is used for：It is at least two sub-pieces by the head file cutting, according to
At least two sub-piece is compressed in Zlib functions library respectively.
Further, as shown in figure 8, the combining unit 713 includes：
Second creates subelement 814, for creating compressed video file；
Second reading subunit 815, for reading compressed header data from the compression head file；
Second reading subunit 815 is additionally operable to read the video data from the video data file；
Second write-in subelement 816, the compressed head number for reading second reading subunit 815
Specifying in the compressed video file that subelement 814 creates is created according to being respectively written into described second with the video data
Position.
Further, the second write-in subelement 816 is used to the compressed header data writing the video
Before data.
Original video files can be split as head file and video data by first device provided in an embodiment of the present invention
Then file compresses head file, obtain compression head file, then will compression head file and video data text
Part merges into compressed video file, and compressed video file is finally sent to client.Video counts provided in an embodiment of the present invention
According to the first device of processing, head text can be downloaded to reduce by reducing head file size to the compression of head file
Part takes.With in the prior art to video file be sliced reduce head file size by way of compared with, can not be to regarding
Frequency file does slice and specially treated, can simply and effectively shorten the time buffered for the first time.
In addition, first device provided in this embodiment, can also be multiple sub-pieces by head file cutting, and to multiple
Sub-piece carries out Zlib compressions respectively.Client can unzip it concurrently it after receiving a compression sub-piece
Player is given, without waiting for the step of being unziped it again after all downloading all compression head files, thus may be used
Further to shorten the time buffered for the first time.
The realization of method with reference to shown in above-mentioned Fig. 2 or Fig. 3, the present embodiment additionally provide a kind of dress of video data processing
It sets, described device is second device, to be realized to Fig. 2 or shown in Fig. 3 methods.The second device can be located at visitor
In the end of family.As shown in figure 9, the second device 91, including, receiving unit 911, decompression unit 912 and processing unit
913, wherein
The receiving unit 911, the compressed video file for receiving network side server transmission, the compression video text
Part includes compression head file and video data file, wherein the compression head file is compressed head file；
The decompression unit 912, for after the receiving unit 911 receives the compression head file, to institute
It states compression head file to unzip it, obtains head file；
The processing unit 913, for decompressing the obtained head file to institute according to the decompression unit 912
The video data file for stating 911 receipt of subsequent of receiving unit is handled.
Further, the decompression unit 912 is for solving the compression head file according to Zlib functions library
Compression obtains head file.
Further, the receiving unit 911 is for receiving at least two compression sub-pieces, at least two compressions
Segment forms the compression head file；
The decompression unit 912 is used for after the receiving unit 911 often receives a compression sub-piece, according to
Zlib functions library unzips it the compression sub-piece.
Second device provided in an embodiment of the present invention can receive the compressed video file of network side server transmission,
After receiving compression head file, compression head file is unziped it, head file is obtained, then according to head file pair
The video data file of receipt of subsequent is handled.The second device of video data processing provided in an embodiment of the present invention, can
By reducing head file size to the compression of head file, taking for head file is downloaded to reduce.With in the prior art
It is compared by way of being sliced to video file and reducing head file size, slice and special place can not be done to video file
Reason, can simply and effectively shorten the time buffered for the first time.
In addition, second device provided in this embodiment, just to the compression sub-pieces after receiving each compression sub-piece
Section unzips it and is sent to player, is decompressed again later without waiting for all compression head files are all downloaded
The step of contracting, it is possible thereby to further shorten the time buffered for the first time.
The realization of method with reference to shown in above-mentioned Fig. 1 to Fig. 3, what the present embodiment additionally provided a kind of processing of video data is
System, to be realized to Fig. 1 to method shown in Fig. 3.As shown in Figure 10, the system 101 includes network side server
1011 and client 1012, the network side server 1011 include above-mentioned Fig. 7 or shown in Fig. 8 first devices 71 or and its
When with data interaction relationship, the client 1012 includes above-mentioned second device 91 shown in Fig. 9.The network side server
There is data interaction relationship between 1011 and the client 1012.
The network side server 1011, for original video files to be split as head file and video data file,
The head file is compressed, compression head file is obtained, by the compression head file and video data text
Part merges into compressed video file, and the compressed video file is sent to the client 1012.
The client 1012, the compressed video file for receiving the transmission of the network side server 1011, the pressure
Contracting video file includes compression head file and video data file, wherein the compression head file is compressed head
File unzips it the compression head file after receiving the compression head file, obtains head file, root
The video data file of receipt of subsequent is handled according to the head file.
Original video files can be split as head file by the system of video data processing provided in an embodiment of the present invention
And video data file, then head file is compressed, obtain compression head file, then will compression head file and
Video data file merges into compressed video file, and compressed video file is finally sent to client.Client receives network
The compressed video file that side server is sent unzips it compression head file, obtains after receiving compression head file
Head file is obtained, then the video data file of receipt of subsequent is handled according to head file.The embodiment of the present invention provides
Video data processing system, can be by reducing head file size to the compression of head file, to reduce lower carrier head
Portion's file takes.With in the prior art to video file be sliced reduce head file size by way of compared with, can not
Slice and specially treated are done to video file, can simply and effectively shorten the time buffered for the first time.
In addition, the system of video data processing provided in this embodiment, can also be multiple sub-pieces by head file cutting
Section, and Zlib compressions are carried out respectively to multiple sub-pieces.Client can carry out it after receiving a compression sub-piece
Player is decompressed and is sent to, without waiting for the step unziped it again after all downloading all compression head files
Suddenly, it is possible thereby to further shorten the time buffered for the first time.
Client described in the present embodiment is the electronic equipment with physical form, and it is mechanical, electrical to include but are not limited to hand
Brain.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow
Help software that the mode of required common hardware is added to realize, naturally it is also possible to which by hardware, but the former is more preferably in many cases
Embodiment.Based on this understanding, the portion that technical scheme of the present invention substantially in other words contributes to the prior art
Dividing can be expressed in the form of software products, which is stored in the storage medium that can be read, and such as count
The floppy disk of calculation machine, hard disk or CD etc., including some instructions are used so that computer equipment (can be personal computer,
Server or the network equipment etc.) execute method described in each embodiment of the present invention.
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 (13)
1. a kind of method of video data processing, which is characterized in that including：
Original video files are split as head file and video data file, the head file include video resolution ratio,
Coded format, code check and crucial frame index；
The head file is compressed, compression head file is obtained；
The compression head file and the video data file are merged into compressed video file；
The compressed video file is sent to client；
Wherein, carrying out compression to the head file includes：It is that the segmentation of multiple sub-pieces is pressed by the head file cutting
Contracting, so that the client unzips it the compression sub-piece after often receiving a compression sub-piece；
The step of compression head file and the video data file are merged into compressed video file include：Create pressure
Contracting video file；Compressed header data is read from the compression head file；It is read from the video data file
The video data；The compressed header data and the video data are respectively written into the compressed video file
Designated position,
It is described that the head file is compressed, the step of compressing head file is obtained, including：According to Zlib functions library to institute
It states head file to be compressed, obtains compression head file.
2. the method for video data processing according to claim 1, which is characterized in that described to split original video files
For head file and video data file the step of, including：
Create head file and video data file；
Read head data and video data are distinguished from the original video files；
The header data is written in the head file；
The video data is written in the video data file.
3. the method for video data according to claim 1 processing, which is characterized in that it is described according to Zlib functions library to institute
The step of head file is compressed is stated, including：
It is at least two sub-pieces by the head file cutting；
At least two sub-piece is compressed respectively according to Zlib functions library.
4. the method for video data processing according to claim 1, which is characterized in that described by the compressed head
The step of data and the video data are respectively written into the designated position in the compressed video file, including：
Before the compressed header data is write the video data.
5. a kind of method of video data processing, which is characterized in that including：
The compressed video file that network side server is sent is received, the compressed video file includes compression head file and regards
Frequency data file, wherein the compression head file is compressed head file, the head file includes the resolution of video
Rate, coded format, code check and crucial frame index；
After receiving the compression head file, the compression head file is unziped it, obtains head file；
The video data file of receipt of subsequent is handled according to the head file；
Wherein, after receiving the compression head file, to the compression head file unzip it including：It receives respectively
Multiple compression sub-pieces unzip it the compression sub-piece after often receiving a compression sub-piece；
Before the network side server sends compressed video file, the network side server creates compressed video file；
Compressed header data is read from the compression head file；The video counts are read from the video data file
According to；The specific bit compressed header data and the video data being respectively written into the compressed video file
It sets,
It is described that the compression head file is unziped it, obtain head file the step of, including：According to Zlib functions library pair
The compression head file unzips it, and obtains head file.
6. the method for video data processing according to claim 5, which is characterized in that the reception network side server hair
The step of compressed video file sent, including：
At least two compression sub-pieces are received, at least two compressions sub-piece forms the compression head file；
The described the step of compression head file is unziped it according to Zlib functions library, including：
After often receiving a compression sub-piece, the compression sub-piece is unziped it according to Zlib functions library.
7. a kind of device of video data processing, described device is first device, which is characterized in that the first device includes：
Split cells, for original video files to be split as head file and video data file, the head file includes
Resolution ratio, coded format, code check and the crucial frame index of video；
Compression unit obtains compression head file for being compressed to the head file that the split cells is split out；
Combining unit, what the compression head file and the split cells for compressing the compression unit were split out
The video data file merges into compressed video file；
Transmission unit, the compressed video file for merging the combining unit are sent to client；
Wherein, carrying out compression to the head file includes：It is that the segmentation of multiple sub-pieces is pressed by the head file cutting
Contracting, so that the client unzips it the compression sub-piece after often receiving a compression sub-piece；
The combining unit includes：
Second creates subelement, for creating compressed video file；
Second reading subunit, for reading compressed header data from the compression head file；
Second reading subunit is additionally operable to read the video data from the video data file；
Second write-in subelement, the compressed header data for reading second reading subunit and described regards
Frequency evidence is respectively written into the designated position in the compressed video file that described second creates subelement establishment,
The compression unit obtains compression head file for being compressed to the head file according to Zlib functions library.
8. device according to claim 7, which is characterized in that the split cells includes：
First creates subelement, for creating head file and video data file；
First reading subunit, for distinguishing read head data and video data from the original video files；
First write-in subelement, the header data write-in described first for reading first reading subunit create
In the head file that subelement creates；
The first write-in subelement is additionally operable to the video data for reading first reading subunit and is written described the
One creates in the video data file that subelement creates.
9. device according to claim 7, which is characterized in that the compression unit is used for：
It is at least two sub-pieces by the head file cutting；
At least two sub-piece is compressed respectively according to Zlib functions library.
10. device according to claim 7, which is characterized in that the second write-in subelement is used for will be after the compression
Header data write the video data before.
11. a kind of device of video data processing, described device is second device, which is characterized in that the second device includes：
Receiving unit, the compressed video file for receiving network side server transmission, the compressed video file include compression
Head file and video data file, wherein the compression head file is compressed head file, the head file
Resolution ratio, coded format, code check including video and crucial frame index；
Decompression unit, for after the receiving unit receives the compression head file, to the compression head file
It unzips it, obtains head file；
Processing unit, the head file for being decompressed according to the decompression unit are follow-up to the receiving unit
The video data file of reception is handled, wherein after receiving the compression head file, to the compression head file
Unzip it including：Multiple compression sub-pieces are received respectively, to compression after often receiving a compression sub-piece
Segment unzips it；
Before the network side server sends compressed video file, the network side server creates compressed video file；
Compressed header data is read from the compression head file；The video counts are read from the video data file
According to；The specific bit compressed header data and the video data being respectively written into the compressed video file
It sets,
The decompression unit obtains head text for being unziped it to the compression head file according to Zlib functions library
Part.
12. according to the devices described in claim 11, which is characterized in that the receiving unit is for receiving at least two compression
Segment, at least two compressions sub-piece form the compression head file；
The decompression unit is used for after the receiving unit often receives a compression sub-piece, according to Zlib functions library pair
The compression sub-piece unzips it.
13. a kind of system of video data processing, which is characterized in that the system comprises network side server and client,
Wherein, described comprising the first device as described in any one of claim 7 to claim 10 in the network side server
Include the second device as described in any one of claim 11 to claim 12 in client.
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| CN105338424B (en) * | 2015-10-29 | 2019-10-08 | 努比亚技术有限公司 | A kind of method for processing video frequency and system |
| CN106776663B (en) * | 2015-11-25 | 2020-11-10 | 腾讯科技（深圳）有限公司 | Audio file compression method and device |
| CN108848060B (en) | 2018-05-17 | 2021-08-24 | 上海哔哩哔哩科技有限公司 | Multimedia file processing method, processing system and computer readable storage medium |
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