CN109542848A - A kind of vehicle-mounted media file fast scanning method and system - Google Patents
A kind of vehicle-mounted media file fast scanning method and system Download PDFInfo
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- CN109542848A CN109542848A CN201811317509.3A CN201811317509A CN109542848A CN 109542848 A CN109542848 A CN 109542848A CN 201811317509 A CN201811317509 A CN 201811317509A CN 109542848 A CN109542848 A CN 109542848A
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Abstract
The invention discloses a kind of vehicle-mounted media file fast scanning methods, comprising the following steps: obtains the carry path of carry equipment, and creates scanning thread units；Judge that carry path whether there is in legal set of paths, if it does not exist, then destroys scanning thread units；When being present in legal set of paths, inquiry carry path whether there is in statistical path set, and if it exists, then read statistical path priority scan；If it does not exist, then identification weight is carried out to carry path；File is orderly scanned one by one according to the weight that carry path is assigned.The invention also discloses a kind of quick scanning systems of vehicle-mounted media file.The present invention is utilized to technological means such as the differentiation of vehicle-mounted media file data, filtering screening, media informations, and priority scan has the catalogue compared with multimedia file, to reach the beneficial effect of quick scanning medium file.
Description
Technical field
The present invention relates to vehicle-mounted media data processing fields, and more specifically more particularly to a kind of vehicle-mounted media file is fast
Fast scan method and system.
Background technique
With the rapid development of Automobile Electronic Industry, vehicle-mounted terminal system is increasingly favored and is paid attention to by people, vehicle-mounted end
The function of end system is also increasingly rich, and especially vehicle media system can bring pleasant and comfortable riding experience,
The Android operation system research and development based on Google mostly of existing vehicle media system, when factory almost without included music or
Video file needs user to access or be inserted into multimedia medium (such as USB flash disk, RAM card) reading media file by Bluetooth of mobile phone,
Android system generally uses single thread to be passed for each file of external SD card, EMMC (built-in SD card), USB device etc.
Return formula to scan and parsing operation, traditional scanning mode of file under this Depth Priority Algorithm traversal root, cause be
Unite the great wasting of resources, cause media file read by vehicle media system scan when rate it is very slow.Due to vehicle-mounted media
System is different from traditional Android system in many aspects, such as: in terms of file type, vehicle media system is compared to tradition peace
Tall and erect system has more specific aim to file type, and main file object is media file, rather than all kinds of different types
File, and without to overall whole file carry out multipath scanning；In terms of configuration strategy, vehicle media system is compared to tradition
Android system can more optimize simply, and without so much extra management and configuration, burdensome strategy seriously affects vehicle-mounted matchmaker
The working efficiency of system system.The existing vehicle media system using traditional Android system all do not have to problem above specific aim optimization and
It improves, causes to need to carry out a large amount of duplicate scanning works during being loaded into media file, scanning quality and rate are also all lower,
Automobile driver is unable to satisfy to pursue the efficient scan process after accessing media file, more quickly use vehicle media system
User demand.
Summary of the invention
It is an object of the invention in view of the above shortcomings of the prior art, provide a kind of vehicle-mounted media file quickly side of scanning
Method and system.
The technical scheme of the present invention is realized as follows:
A kind of vehicle-mounted media file fast scanning method, comprising the following steps:
The carry path of carry equipment is obtained, and creates scanning thread units；
Judge that carry path whether there is in legal set of paths, if it does not exist, then destroys scanning thread units；
When being present in legal set of paths, inquiry carry path whether there is in statistical path set, and if it exists, then excellent
First scan；If it does not exist, then identification weight is carried out to carry path；
File is orderly scanned one by one according to the weight that carry path is assigned.
Preferably, further comprising the steps of:
When inquiry carry path is not present in statistical path set, identify that the catalogue under carry path whether there is media
File, to there are the catalogues of media file to carry out number of media files weight statistics under carry path；
Filter out the catalogue there is no media file；
Directory path is ranked up by weight statistical result.
Preferably, further comprising the steps of:
Orderly scan file one by one according to the weight that carry path is assigned, and judge the file under carry path whether be can
The played file of identification, if it has not, then filtering the path of the not identified documentation；
When the file under carry path is identifiable played file, then media information parsing is carried out to this document；
By the media file storage after parsing into database, obtains, uses for media program；
After storage, periodic statistics are carried out to the file in database, and statistical result is deposited to statistical path collection
It closes.
Preferably, the carry path of carry equipment is obtained, and creates parsing thread units and scanning thread units.
Preferably, the legal set of paths is the external path USB of preset carry device path or system default.
A kind of quick scanning system of vehicle-mounted media file, comprising:
Carry monitor, for detecting the access of carry equipment；
Scan state machine, for monitoring and adjusting the state of media file scanner program；
Thread units are scanned, for the scanning to file；
Media Survey status monitoring interface, for receiving carry route directory information in scanning carry equipment；
Database, for storing user profile, media information, legal set of paths data and statistical path set number
According to；
Background service unit, for scanning mode to be sent to media application and/or sends out the control information of media application
Give scan state machine；
Media application unit, for obtaining media file scanning mode and inquiring the media file information on database；
The media application unit is connected with the background service unit, the scan state machine respectively with the carry
Monitor and the background service unit are connected, and the background service unit is connected with the Media Survey status monitoring interface
It connects, the scanning thread units are connected with the Media Survey status monitoring interface, the scanning thread units and the number
It is connected according to library, the scanning thread units are connected with the scan state machine.
Preferably, further includes:
Thread units are parsed, for being parsed to this document information details when media file is arrived in scanning；
Scanning mode interface is transmitted, for transmitting media file scanning mode；
Interface is monitored in media parsing, for the file information after receiving the parsing of parsing thread units transmitting；
The media application unit is connected by the transmitting scanning mode interface with the background service unit, described
Media parsing monitors interface and is connected respectively with the background service unit and the parsing thread units, the parsing thread list
First to be connected with the Media Survey status monitoring interface, the parsing thread units are connected with the database, the solution
Analysis thread units are connected with the scan state machine.
Preferably, the media application unit can be media play APP and provide user interface, wherein the interface includes
Media information is shown and file scan status display.
It was found by the inventors of the present invention that in the prior art, the vehicle media system using traditional Android system is being loaded into
Cumbersome scanning strategy is needed during media file, duplicate scanning work, scanning quality and rate are also all lower, greatly hinder
The smooth use of user, influences user experience.Therefore, the technical assignment or technology to be solved that the present invention to be realized are asked
Topic be it is that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of new technical solution.
Detailed description of the invention
The present invention is described in further detail for embodiment in reference to the accompanying drawing, but does not constitute to of the invention
Any restrictions.
Fig. 1 is a kind of step schematic diagram of the first embodiment of vehicle-mounted media file fast scanning method；
Fig. 2 is a kind of step schematic diagram of the second embodiment of vehicle-mounted media file fast scanning method；
Fig. 3 is a kind of block diagram of the first embodiment of quick scanning system of vehicle-mounted media file；
Fig. 4 is a kind of block diagram of the second embodiment of quick scanning system of vehicle-mounted media file；
In figure: 1, carry monitor；2, scan state machine；3, thread units are scanned；4, Media Survey status monitoring interface；
5, database；6, background service unit；7, media application unit；8, thread units are parsed；9, scanning mode interface is transmitted；10,
Interface is monitored in media parsing.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
A kind of first embodiment of vehicle-mounted media file fast scanning method is introduced as shown in Figure 1, comprising the following steps:
S101, the carry path for obtaining carry equipment, and scanning thread units 3 are created, when outer in vehicle media system
When connecing equipment carry monitor 1 and detecting external equipment carry, advising process creation scanning thread units 3；
S102, the scanning thread units 3 judge that carry path whether there is in legal set of paths, if it does not exist, then
Termination process destroys scanning thread units 3；
S103, when being present in legal set of paths, inquiry when front mount path whether there is in statistical path set, institute
Configuration file can be counted for path by stating statistical path set, or it is stored in 5 ground path statistical data of database, it can be with
For the data set for being temporarily stored into parsing thread units 8, and if it exists, then priority scan；If it does not exist, then carry path is identified
Weight identifies 3 grades of progress breadth search that is, lower to the catalogue judges whether file suffixes is matchmaker by the weight that depth is 3 grades
Body type judges to contain media file possibility in this document folder according to folder name and assigns weight respectively；
S104, the weight assigned according to carry path carry out orderly depth-first scanning, to assign the path after weight into
Row sorts from high to low, and reads filtering profiles, removes the path without scanning, and formation finally needs to scan orderly
Path.
After the completion of scanning, scanning thread units 3 are destroyed, so that scanning next time directly uses.
The second embodiment that a kind of vehicle-mounted media file fast scanning method is introduced shown in ginseng Fig. 2 is implemented compared to first
Example, second embodiment are further comprising the steps of:
S101, the carry path for obtaining carry equipment, and scanning thread units 3 are created, when outer in vehicle media system
When connecing equipment carry monitor 1 and detecting external equipment carry, advising process creates parsing thread units 8 and scanning thread simultaneously
Unit 3；
S102, the scanning thread units 3 judge that carry path whether there is in legal set of paths, if it does not exist, then
Termination process destroys scanning thread units 3, and the legal set of paths is the outer of preset carry device path or system default
Set the path USB；
S103, when being present in legal set of paths, inquiry when front mount path whether there is in statistical path set, institute
Configuration file can be counted for path by stating statistical path set, or it is stored in 5 ground path statistical data of database, it can be with
For the data set for being temporarily stored into parsing thread units 8, and if it exists, then priority scan；
S1031, when inquire carry path be not present in statistical path set when, under carry path catalogue identification whether
There are media files, to there are the catalogues of media file to carry out number of media files weight statistics under carry path, using depth
It is identified for 3 grades of weights, i.e., 3 grades of progress breadth search lower to the catalogue judges whether file suffixes is medium type, according to text
Part folder name judges to contain media file possibility in this document folder and assigns weight respectively；
S1032, catalogue there is no media file is filtered out, in order to avoid waste scanning resource；
S1033, directory path is ranked up by weight statistical result；
S104, file is orderly scanned according to the weight that carry path is assigned one by one, to assign weight after path carry out by
High to Low sequence scanning, is scanned depth-first search according to the sequence sequenced one by one, scans each file, depth-first
Then efficiency it is lower, and judge whether the file under carry path is identifiable played file, if it has not, then filtering this can not
It identifies the path of file, forms the orderly path for finally needing to scan；
S105, when the file under carry path be identifiable played file when, then to this document carry out media information solution
Analysis, by the 7 interface UI of result notice media application unit of each file scan and parses this document, user can at this time
To see simple information, it can be seen that detailed media information after being parsed, the media information is divided into simple information and in detail
Thin two parts of information, simple information only include filename, size, path, details include simple information and album of songs,
The all information of one media file such as author, singer, album cover, cover thumbnail；
S106, by the media file storage after parsing into database 5, for media program obtain, use；
After S107, storage, periodic statistics are carried out to the file in database 5, obtain the most preceding n of media file
The number of a catalogue, catalogue number can voluntarily be determined by user, and statistical result is deposited to statistical path set, so that next time sweeps
It can be read directly when retouching, be pin-pointed to catalogue where media file.
After the completion of scanning, scanning thread units 3 are destroyed, parsing thread units 8 remain operational, so that scanning next time directly makes
With.
Media information is divided into simple information and details, simple information can be presented to user after obtaining, in detail
Information is presented to user after gradually supplementing again, and because the speed of scanning simple information is very fast, but the speed for parsing details is slow,
This method can split media information, when scanning thread units 3 scan carry out simple information after can fast notification matchmaker
Body application display media file tabular, is presented to user；Pass through the configurating filtered mesh for not needing scanning of legal set of paths simultaneously
Record, and a possibility that differentiating presence or media file, be somebody's turn to do by the weight of calculating catalogue or file with reaching priority scan
The purpose of catalogue.
A kind of first embodiment of quick scanning system of vehicle-mounted media file is introduced, including as shown in Figure 3 with lower unit:
Carry monitor 1 (DeviceMountListener), for detecting the access of carry equipment, and by carry equipment
Media information be transmitted in scan state machine 2, the carry equipment includes USB flash disk, mobile hard disk, RAM card, SD card, mobile logical
Believe terminal etc.；
Scan state machine 2 (ExDeviceServiceStateMachine) refers to the state machine of Media Survey program, is used for
The state of monitoring and adjustment media file scanner program, for example, adjustment picture is preferential, music is preferential, video priority, foreground scanning,
Background scanning etc.；
It scans thread units 3 (ScanMediaThread), for activating the thread when scanning is to media file, and it is right
The details of this document parse；
Media Survey status monitoring interface 4 (IMediaStoreChangeListener), for receiving scanning carry equipment
Upper carry route directory information；
Database 5 (MediaStoreDB), for storing user profile, media information, legal set of paths data
With statistical path collective data, the legal set of paths data are derived from the scanning thread units 3；
Background service unit 6 (ExDeviceService) refers to the background service of Media Survey program, is responsible for that shape will be scanned
State is sent to media application unit 7 (MediaAPP) and/or the control information of media application unit 7 is sent to scan state machine
2；
Media application unit 7, for obtaining media file scanning mode and inquiring the media file information on database；Institute
The upper Media application that media application unit 7 is Android system is stated, can also be the APP with media play function, and can provide
User interface UI (user interface), wherein the interface includes that media information is shown and file scan status display, institute
It states media application unit 7 and solves receipts Media Survey state from background service unit 6, media are inquired by using inquiry database 5
Information.
The media application unit 7 is connected with the background service unit 6, the scan state machine 2 respectively with it is described
Carry monitor 1 and the background service unit 6 are connected, the background service unit 6 and the Media Survey status monitoring
Interface 4 is connected, and the background service unit 6 can receive the information issued from the Media Survey status monitoring interface 4, described
Scanning thread units 3 are connected with the Media Survey status monitoring interface 4, and the Media Survey status monitoring interface 4 is used for
Receive the carry facility inventory information that the scanning thread units 3 scan, the scanning thread units 3 and 5 phase of database
Connection, and the legal set of paths data after parsing are stored in the database 5 and pass through the Media Survey status monitoring
Interface 4 notifies background service unit 6, the scanning thread units 3 to be connected with the scan state machine 2, the media application
Unit 7 and the scanning thread units 3 are described to sweep using the synchronizing information between Android AIDL communication (two-way communication) completion process
Thread units 3 are retouched to be controlled by the scan state machine 2.
A kind of second embodiment of quick scanning system of vehicle-mounted media file is introduced as shown in Figure 4, compares first embodiment,
Further include with lower unit:
It parses thread units 8 (ObtainMediaInfoThread), is used for when media file is arrived in scanning, to this document
Information details are parsed；
It transmits scanning mode interface 9 (ExDeviceClient), is by background service unit 6 (ExDeviceService)
The group interface provided preferably can transmit Media Survey state to the media application unit 7 by the interface.
Interface 10 (IMediaStoreChangeListener) is monitored in media parsing, for when the reception parsing thread
The file information after the transmitting parsing of unit 8；
The media application unit 7 is connected by the transmitting scanning mode interface 9 with the background service unit 6,
The media parsing monitors interface 10 and is connected respectively with the background service unit 6 and the parsing thread units 8, receives institute
The file information after stating the parsing transmitting parsing of thread units 8, and pass information to the background service unit 6, the parsing
Thread units 8 are connected with the Media Survey status monitoring interface 4, and the parsing thread units 8 can receive from the media
Scanning mode monitors the information that interface 4 issues, and the parsing thread units 8 are connected with the database 5, the parsing thread
Unit 8 is connected with the scan state machine 2, by after parsing media information and the statistical path collective data deposit described in
In database 5 and interface 10 is monitored by media parsing and notifies the background service unit 6, the parsing thread units 8
It is controlled by the scan state machine 2.
The present invention can be system, method and/or computer program product.Computer program product may include computer
Readable storage medium storing program for executing, containing for making processor realize the computer-readable program instructions of various aspects of the invention.It is right
For those skilled in the art it is well known that, the present invention can by hardware mode realize, by software mode realization and
It is realized in such a way that software and hardware combines, no matter realizing in which way all should belong in protection scope of the present invention.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (8)
1. a kind of vehicle-mounted media file fast scanning method, which comprises the following steps:
The carry path of carry equipment is obtained, and creates scanning thread units；
Judge that carry path whether there is in legal set of paths, if it does not exist, then destroys scanning thread units；
When being present in legal set of paths, inquiry carry path whether there is in statistical path set, and if it exists, then read system
Count heat source scanning；If it does not exist, then identification weight is carried out to carry path；
File is orderly scanned one by one according to the weight that carry path is assigned.
2. a kind of vehicle-mounted media file fast scanning method according to claim 1, which is characterized in that further include following step
It is rapid:
When inquiry carry path is not present in statistical path set, identify the catalogue under carry path with the presence or absence of media text
Part, to there are the catalogues of media file to carry out number of media files weight statistics under carry path；
Filter out the catalogue there is no media file；
Directory path is ranked up by weight statistical result.
3. a kind of vehicle-mounted media file fast scanning method according to claim 1, which is characterized in that further include following step
It is rapid:
File is orderly scanned one by one according to the weight that carry path is assigned, and judges whether the file under carry path is recognizable
Played file, if it has not, then filtering the path of the not identified documentation；
When the file under carry path is identifiable played file, then media information parsing is carried out to this document；
By the media file storage after parsing into database, obtains, uses for media program；
After storage, periodic statistics are carried out to the file in database, and statistical result is deposited to statistical path set.
4. a kind of vehicle-mounted media file fast scanning method according to claim 1, which is characterized in that obtain carry equipment
Carry path, and create parsing thread units and scanning thread units.
5. a kind of vehicle-mounted media file fast scanning method according to claim 1, which is characterized in that the legal path
Collection is combined into the external path USB of preset carry device path or system default.
6. a kind of quick scanning system of vehicle-mounted media file characterized by comprising
Carry monitor, for detecting the access of carry equipment；
Scan state machine, for monitoring and adjusting the state of media file scanner program；
Thread units are scanned, for the scanning to file；
Media Survey status monitoring interface, for receiving carry route directory information in scanning carry equipment；
Database, for storing user profile, media information, legal set of paths data and statistical path collective data；
Background service unit, for scanning mode to be sent to media application and/or is sent to the control information of media application
Scan state machine；
Media application unit, for obtaining media file scanning mode and inquiring the media file information on database；
The media application unit is connected with the background service unit, and the scan state machine is monitored with the carry respectively
Device and the background service unit are connected, and the background service unit is connected with the Media Survey status monitoring interface,
The scanning thread units are connected with the Media Survey status monitoring interface, the scanning thread units and the database
It is connected, the scanning thread units are connected with the scan state machine.
7. a kind of quick scanning system of vehicle-mounted media file according to claim 6, which is characterized in that further include:
Thread units are parsed, for being parsed to this document information details when media file is arrived in scanning；
Scanning mode interface is transmitted, for transmitting media file scanning mode；
Interface is monitored in media parsing, for the file information after receiving the parsing of parsing thread units transmitting；
The media application unit is connected by the transmitting scanning mode interface with the background service unit, the media
Parsing monitor interface be connected respectively with the background service unit and the parsing thread units, the parsing thread units and
The Media Survey status monitoring interface is connected, and the parsing thread units are connected with the database, the parsing line
Cheng Danyuan is connected with the scan state machine.
8. a kind of quick scanning system of vehicle-mounted media file according to claim 6, which is characterized in that the media application
Unit can be media play APP and provide user interface, wherein the interface includes that media information is shown and file scan state
Display.
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| CN109542848B (en) | 2022-01-07 |
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