CN104168435B - The method and system that a kind of audio file batch merges and played - Google Patents
The method and system that a kind of audio file batch merges and played Download PDFInfo
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- CN104168435B CN104168435B CN201410402102.6A CN201410402102A CN104168435B CN 104168435 B CN104168435 B CN 104168435B CN 201410402102 A CN201410402102 A CN 201410402102A CN 104168435 B CN104168435 B CN 104168435B
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Abstract
The method and system that a kind of audio file batch provided by the present invention merges and played, unified formatting is carried out by the audio file merged to needs first, and it is divided into audio file block, audio file block is encrypted, it thereby may be ensured that the security of voice data, prevent audio data content and steal, and generate track index table always according to the storage location of audio file block, positioned according to the position that the track index table is stored to audio file block, the loss of audio file, which can not only be prevented, can also realize the data message for fast and accurately reading the audio file, therefore method and system provided by the present invention not only facilitate the storage of audio file to also assures that the security of the audio file.
Description
Technical field
The present invention relates to moving communicating field, more particularly to the method and system that a kind of audio file batch preserves.
Background technology
With the popularization of electronic product, the use of audio file is also more and more extensive, such as when being read on the net, greatly
The audio video file of amount can more give the preferable reading effect of user than word.
In order to store more audio files, traditional method is stores after the merging of batch, but in the prior art
Method problems be present：
1st, after traditional batch audio merges, can is generally handled by simple analysis and reads voice data, easily quilt
People steals audio data content.
2nd, after traditional batch audio merges, data do not carry out storage strategy control, can not accurately read wherein single
Audio section.
3rd, after traditional batch audio merges, the metadata of original audio is easily damaged, causes loss of data or damage.
Therefore, prior art is improved up for further.
The content of the invention
In view of above-mentioned weak point of the prior art, it is an object of the invention to provide the user a kind of audio file batch
The method and system that amount merges and played, to solve, the audio file security after batch merges in the prior art is low and data are easy
The problem of loss.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of method that audio file batch merges and played, wherein, it the described method comprises the following steps：
A, the audio file by the audio file Batch conversion that needs merge into form of the same race；
B, the data of the audio file are split using data value set in advance as cutting unit, segmentation is obtained
Audio file block be encrypted after, merge storage into data file；
C, the data message of the audio file block included in the data file is read, the audio file block is decrypted
After play out.
The method that the audio file batch merges and played, wherein, the step B includes：
B1, the audio file block being partitioned into is randomly assigned to storage order, and track rope is generated according to the storage order
Draw table；
The step C includes：
C1, according to the track index table obtain data file in each audio file block information.
The method that the audio file batch merges and played, wherein, the step B includes：
B2, by the data message included in the audio file block in plain text, according to encryption key set in advance, make
The audio file block is encrypted with AES encryption algorithm.
The method that the audio file batch merges and played, wherein, also include in the step B：
B3, the storage of the audio file block after storage order result will be randomly assigned preserved.
The method that the audio file batch merges and played, wherein, also include in the step C：
C2, using the encryption key audio file block is decrypted, and read according to the track index table
The information of the audio file block, rearrangement combine the audio file block, has complete audio data to what is read
Audio file plays out.
The system that a kind of audio file batch merges and played, wherein, including：
Formatting module, for the audio file by the audio file Batch conversion that needs merge into form of the same race；
Split encrypting module, for the data of the audio file being carried out using data value set in advance as cutting unit
Segmentation, after the audio file block that segmentation obtains is encrypted, merge storage into data file；
Playing module is decrypted, for reading the data message of the audio file block included in the data file, by institute
Played out after stating the decryption of audio file block.
The system that the audio file batch merges and played, wherein, it is single that the segmentation encrypting module includes index generation
Member, the decryption playing module include reading information unit；
The index generation unit, for the audio file being partitioned into block to be randomly assigned into storage order, and according to described
Storage order generates track index table；
The reading information unit, for obtaining each audio file block in data file according to the track index table
Information.
The system that the audio file batch merges and played, wherein, the segmentation encrypting module also includes encryption
Unit；
The cryptographic processing unit, for being plaintext by the data message included in the audio file block, according to pre-
The encryption key first set, the audio file block is encrypted using AES encryption algorithm.
The system that the audio file batch merges and played, wherein, the segmentation encrypting module also includes information and stored
Unit；
Described information memory cell, protected for the storage of the audio file block after storage order result will to be randomly assigned
Deposit.
The system that the audio file batch merges and played, wherein, the decryption playing module reads single including decryption
Member；
The decryption reading unit, for the audio file block to be decrypted using the encryption key, and according to
The track index table reads the information of the audio file block, and the audio file block is combined in rearrangement, to what is read
Audio file with complete audio data plays out.
Beneficial effect, the method and system that a kind of audio file batch provided by the present invention merges and played, by right
The audio file for needing to merge carries out unified formatting first, and is divided into audio file block, and audio file block is carried out
Encryption, thereby may be ensured that the security of voice data, prevents audio data content and steal, and always according to audio file block
Storage location generation track index table, the position that can be quickly stored according to the track index table to audio file block
Positioned, can not only prevent the loss of audio file from can also realize the data letter for fast and accurately reading the audio file
Breath, therefore method and system provided by the present invention not only facilitate the storage of audio file to also assures that the peace of the audio file
Quan Xing.
Brief description of the drawings
Fig. 1 is the step flow chart of a kind of audio file batch merging of the present invention and the method played.
Fig. 2 is the concrete application embodiment schematic diagram of the method for the invention.
Fig. 3 is the system principle structural representation that a kind of audio file batch of the present invention merges and played.
Embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and do not have to
It is of the invention in limiting.
The invention provides a kind of audio file batch merge and play method, as shown in figure 1, methods described include with
Lower step：
S1, the audio file by the audio file Batch conversion that needs merge into form of the same race.
Multiple audio file batches that needs are merged first by conversion software, by the sound of original different-format
Frequency file is converted to the audio file of same format, causes to merge the number after storing because of format differences between reduction audio file
According to damage.
S2, using data value set in advance as cutting unit the data of the audio file are split, will be split
To audio file block be encrypted after, merge storage into data file.
After audio file batch format, the data included to audio file are split.
The method of above-mentioned data segmentation can be：Three kinds of fixed size piecemeal, sliding shoe piecemeal and variable partitioned blocks.Below
Data segmentation explanation is carried out by taking fixed size partition strategy as an example, i.e., according to default size by file division into multiple audio files
Block, this can be preset and be sized to 512 bytes, 1024 bytes, 2048 bytes etc..For example, being changed in previous step
Audio file 1 afterwards is divided into audio file block a1, b1 and c1 according to 1024 bytes.In the piecemeal size unit according to setting
File is carried out in piecemeal processing procedure, if last block piecemeal is less than the piecemeal size unit of setting, takes last block
The actual size processing of piecemeal.
After audio file completes data segmentation, obtained audio file block is encrypted, merges after encryption and deposits
Store up into a data file.
Specifically, the audio file, which is encrypted, can use multiple encryption algorithms, it is preferred that to institute in this step
To state audio file block encryption and use AES symmetric encipherment algorithms, the algorithm has been analyzed in many ways and widely the whole world uses,
AES encryption algorithmic technique mature and reliable, feature are that algorithm discloses, amount of calculation is small, enciphering rate is fast, encryption efficiency is high, security.
In a symmetric encryption algorithm, by audio plaintext initial data and encryption key together by special AES processing after, make it
The encrypted cipher text for becoming complicated is exported, and can be to read and write audio file block while audio file block is encrypted,
After the completion of encryption, the rearrangement of audio file block is combined in a larger data storage section, is stored as one individually
Data file in.
The data message of audio file block included in S3, the reading data file, by the audio file block solution
Played out after close.
The data message of the audio file block included in the data file is read, obtains the audio file block after encryption
Information, after the audio file block is decrypted using the AES used in above-mentioned steps S2, play out.
In order to preferably ensure the integrality of the security of audio file and data, and carrying out to the number after merging
Positioned faster according to file middle pitch frequency file, in the basic row of the above method, there can also be following improvement, wherein, the step
Rapid S2 includes：
S21, the audio file block being partitioned into is randomly assigned to storage order, and track rope is generated according to the storage order
Draw table；
The step S3 includes：
S31, according to the track index table obtain data file in each audio file block information.
By to carrying out the audio file being partitioned into block to be randomly assigned storage order in this step, and it is suitable according to its storage
Sequence generates track index table, so as to can not only avoid passing through audio file of the simple analysis can after must merge,
Avoid audio file from losing data, quickly audio file block can also be positioned by track index table, read wherein
Data message.
And also include in this step, the storage of the audio file block after storage order result will be randomly assigned and preserved.
The storage result includes：Audio file name, each audio file block name, segmentation order, the word of audio file block
Save size, the byte point that segmentation starts, the segmentation byte point terminated, the storage order being randomly assigned.Pass through the note of these information
Record, merge storage for follow-up file block and piecemeal assembles the associative operation read and prepared, finally with reference to audio file
The size of the quantity of block and audio file itself, the track index table for the object information that derived record has piecemeal to store is calculated, its
Below middle concordance list structure：
<files>
<file name="1.mp3" size="24576">
<data_block blockindex="1" name="a1" beginbyte="1" endbyte="1024"
size="1024" saveindex="3"></data_block>
<data_block blockindex="2" name="b1" beginbyte="1025" endbyte="2048"
size="1024" saveindex="2"></data_block>
<data_block blockindex="3" name="c1" beginbyte="2049" endbyte="3072"
size="1024" saveindex="1"></data_block>
</file>
<file name="2.mp3" size="24500">
<data_block blockindex="1" name="a2" beginbyte="1" endbyte="1024"
size="1024" saveindex="6"></data_block>
<data_block blockindex="2" name="b2" beginbyte="1025" endbyte="2048"
size="1024" saveindex="5"></data_block>
<data_block blockindex="3" name="c2" beginbyte="2049" endbyte="2996"
size="948" saveindex="4"></data_block>
</file>
<files>
Audio file block can be positioned according to the track index table in above-mentioned steps S3.
The step S2 includes：
S22, by the data message included in the audio file block in plain text, according to encryption key set in advance,
The audio file block is encrypted using AES encryption algorithm.
The method that the audio file batch merges and played, wherein, also include in the step S3：
S32, using the encryption key audio file block is decrypted, and read according to the track index table
The information of the audio file block, rearrangement combine the audio file block, has complete audio data to what is read
Audio file plays out.
Due to the audio file block having been carried out being randomly assigned storage order in above-mentioned steps S2, therefore in this step
It is middle to need, by the audio file block after decryption, rearrangement combination, after a complete audio file is read, to carry out it
Play.
In order to carry out more detailed explanation to the present invention, as described in Figure 2, the concrete application of the inventive method is implemented to illustrate
It is intended to, as illustrated, treating the audio file that batch merges：First by audio 1, audio 2 ... audio n, unified form is converted into,
And the audio file is split according to above-mentioned dividing method, such as：Audio 1 is divided into audio file block：Piecemeal
A1, piecemeal b1 and piecemeal c1, audio 2 are divided into audio file block：Piecemeal a2, piecemeal b2 and piecemeal c2 ... split audio n
Into audio file block：Piecemeal an, piecemeal bn and piecemeal bn, the audio file block being partitioned into is carried out being randomly assigned storage region,
Such as：The audio file piecemeal c2 gone out in storage region corresponding to position 1 for the file division of audio 2, it is sound that position 2 is corresponding
Frequently the 1 audio file piecemeal a1 ... being partitioned into then according to the storage location of above-mentioned audio file block export track concordance list,
After the audio file block is encrypted with reference to AES symmetric encipherment algorithms, merge storage to the data of a storage data field
In file.
It is then first to obtain the data needing to play out the audio file being merged into a data file
Audio file block message in file, each audio file block is accurately positioned according to the track index table, it is entered
After row decryption, play out.
As described in Figure 3, based on the above method, merge and play the invention also discloses a kind of audio file batch
System, as illustrated, the system include with lower module：
Formatting module 10, for the audio file by the audio file Batch conversion that needs merge into form of the same race；
Split encrypting module 20, for entering the data of the audio file using data value set in advance as cutting unit
Row segmentation, after the audio file block that segmentation obtains is encrypted, merge storage into data file；
Playing module 30 is decrypted, will for reading the data message of the audio file block included in the data file
Played out after the audio file block decryption.
The system that the audio file batch merges and played, wherein, it is single that the segmentation encrypting module includes index generation
Member, the decryption playing module include reading information unit；
The index generation unit, for the audio file being partitioned into block to be randomly assigned into storage order, and according to described
Storage order generates track index table；
The reading information unit, for obtaining each audio file block in data file according to the track index table
Information.
The system that the audio file batch merges and played, wherein, the segmentation encrypting module also includes encryption
Unit；
The cryptographic processing unit, for being plaintext by the data message included in the audio file block, according to pre-
The encryption key first set, the audio file block is encrypted using AES encryption algorithm.
The system that the audio file batch merges and played, wherein, the segmentation encrypting module also includes information and stored
Unit；
Described information memory cell, protected for the storage of the audio file block after storage order result will to be randomly assigned
Deposit.
The system that the audio file batch merges and played, wherein, the decryption playing module reads single including decryption
Member；
The decryption reading unit, for the audio file block to be decrypted using the encryption key, and according to
The track index table reads the information of the audio file block, and the audio file block is combined in rearrangement, to what is read
Audio file with complete audio data plays out.
Beneficial effect, the method and system that a kind of audio file batch provided by the present invention merges and played, by right
The audio file for needing to merge carries out unified formatting first, and is divided into audio file block, and audio file block is carried out
Encryption, thereby may be ensured that the security of voice data, prevents audio data content and steal, and always according to audio file block
Storage location generation track index table, the position that can be quickly stored according to the track index table to audio file block
Positioned, can not only prevent the loss of audio file from can also realize the data letter for fast and accurately reading the audio file
Breath, therefore method and system provided by the present invention not only facilitate the storage of audio file to also assures that the peace of the audio file
Quan Xing.
It is understood that for those of ordinary skills, can be with technique according to the invention scheme and its hair
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect scope.
Claims (6)
1. a kind of method that audio file batch merges and played, it is characterised in that the described method comprises the following steps：
A, the audio file by the audio file Batch conversion that needs merge into form of the same race；
B, the data of the audio file are split using data value set in advance as cutting unit, the sound that segmentation is obtained
After frequency file block is encrypted, merge storage into data file；
C, the data message of the audio file block included in the data file is read, the audio file block is decrypted laggard
Row plays；
The step B includes：
B1, the audio file block being partitioned into is randomly assigned to storage order, and track index table is generated according to the storage order；
The step C includes：
C1, according to the track index table obtain data file in each audio file block information；According to the track rope
Draw table to position audio file block；
C2, using encryption key the audio file block is decrypted, and the audio is read according to the track index table
The information of blocks of files, the audio file block is combined in rearrangement, to the audio file with complete audio data read
Play out.
2. the method that audio file batch merges and played according to claim 1, it is characterised in that wrapped in the step B
Include：
B2, by the data message included in the audio file block in plain text, according to encryption key set in advance, to use
The audio file block is encrypted AES encryption algorithm.
3. the method that audio file batch merges and played according to claim 1, it is characterised in that in the step B also
Including：
B3, the storage of the audio file block after storage order result will be randomly assigned preserved.
A kind of 4. system that audio file batch merges and played, it is characterised in that including：
Formatting module, for the audio file by the audio file Batch conversion that needs merge into form of the same race；
Split encrypting module, for being divided the data of the audio file using data value set in advance as cutting unit
Cut, after the audio file block that segmentation obtains is encrypted, merge storage into data file；
Playing module is decrypted, for reading the data message of the audio file block included in the data file, by the sound
Played out after the decryption of frequency file block；
The segmentation encrypting module includes index generation unit, and the decryption playing module includes reading information unit；
The index generation unit, for the audio file being partitioned into block to be randomly assigned into storage order, and according to the storage
It is sequentially generated track index table；
The reading information unit, for obtaining the letter of each audio file block in data file according to the track index table
Breath；Audio file block is positioned according to the track index table；
The decryption playing module includes decryption reading unit；
The decryption reading unit, for the audio file block to be decrypted using encryption key, and according to the track
Concordance list reads the information of the audio file block, and the audio file block is combined in rearrangement, has completely to what is read
The audio file of voice data plays out.
5. the system that audio file batch merges and played according to claim 4, it is characterised in that the segmentation encryption mould
Block also includes cryptographic processing unit；
The cryptographic processing unit, for by the data message included in the audio file block in plain text, according to setting in advance
Fixed encryption key, the audio file block is encrypted using AES encryption algorithm.
6. the system that audio file batch merges and played according to claim 4, it is characterised in that the segmentation encryption mould
Block also includes information memory cell；
Described information memory cell, preserved for the storage of the audio file block after storage order result will to be randomly assigned.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106897587A (en) * | 2017-02-27 | 2017-06-27 | 百度在线网络技术（北京）有限公司 | The method and apparatus of reinforcement application, loading reinforcement application |
| CN108834037B (en) * | 2018-06-12 | 2019-09-13 | 广州酷狗计算机科技有限公司 | The method and apparatus of playing audio-fequency data |
| CN110008185B (en) * | 2018-10-12 | 2021-02-05 | 和宇健康科技股份有限公司 | Cloud information classification processing system utilizing processing redundancy |
| CN109949792B (en) * | 2019-03-28 | 2021-08-13 | 优信拍（北京）信息科技有限公司 | Multi-audio synthesis method and device |
| CN113824735B (en) * | 2021-11-19 | 2022-03-11 | 航天宏图信息技术股份有限公司 | Remote sensing image encryption transmission method and system |
| CN115378590B (en) * | 2022-10-27 | 2023-02-07 | 国网浙江义乌市供电有限公司 | Energy data safe storage method and system based on block chain |
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