CN106791536A - The recording player method and terminal of multimedia file - Google Patents
The recording player method and terminal of multimedia file Download PDFInfo
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- CN106791536A CN106791536A CN201611084004.8A CN201611084004A CN106791536A CN 106791536 A CN106791536 A CN 106791536A CN 201611084004 A CN201611084004 A CN 201611084004A CN 106791536 A CN106791536 A CN 106791536A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/113—Details of archiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The present invention provides the recording player method and terminal of a kind of multimedia file, wherein record player method including：It is video clear stream data by video data encoding, is audio clear stream data by audio data coding；Video clear stream data and audio clear stream data are encapsulated as object video and audio object respectively；Object video and audio object are stored as a multimedia clear stream file；After receiving play instruction, the object video and audio object in multimedia clear stream file are decapsulated respectively, obtain video clear stream data and audio clear stream data；Decoding video clear stream data form video playback data, and decoding audio clear stream data form audio played data；Play video playback data and audio played data.Compared to existing multimedia document recording method, in the case that method provided in an embodiment of the present invention can avoid not having correctly to store multimedia attribute information in prior art storage method, the problem of multimedia file cannot be played.
Description
Technical field
The present invention relates to multimedia equipment technical field, the recording player method of more particularly to a kind of multimedia file and end
End.
Background technology
Drive recorder is the electronic equipment for recording driving road-condition, and it can will shoot the video-audio information for obtaining and deposit
It is multimedia file to store up.When there is traffic accident, multimedia file can be used as the evidence of the reduction scene of the accident.According to prior art
Understand, when normally using, drive recorder can start preservation flow and preserve the multimedia file comprising multimedia attribute information, and
Multimedia file is played according to the decoding of multimedia attribute information.And when there are the contingencies such as power-off, drive recorder cannot
Start and preserve flow, preserve into multimedia file multimedia attribute information.Due to without corresponding multimedia attribute information
Used as reference, drive recorder also cannot just decode broadcasting multimedia file.
Prior art provides a kind of method recovered to the multimedia file for lacking multimedia attribute information, this side
Method first records reference paper using identical device, further according to the foregoing multimedia text of multimedia attribute Information recovering of reference paper
Part.Because multimedia file recovers to need to carry out the reading of heap file information and data are calculated, foregoing multimedia file recovery side
Method is only capable of applying in hardware configuration equipment higher.When there are the accidents such as traffic accident, drive recorder is used
Etc. the demand that terminal quickly plays media file, the reduction scene of the accident；And due to the configuration of the terminal hardwares such as drive recorder not
Height, so foregoing multimedia file restoration methods can not meet aforementioned need.
The content of the invention
It is to solve the relatively low terminal of hardware configuration such as drive recorder when there are the contingencies such as power-off, it is impossible to quick side
Just multimedia file, the then live problem of quick reduction are recovered, the present invention provides a kind of recording of new multimedia file
Player method, the another present invention also provides a kind of recording playback terminal of the multimedia file for realizing preceding method.
The present invention provides a kind of recording player method of multimedia file, comprises the following steps：
Collection video data, according to the first coding rule by the video data encoding be video clear stream data；And adopt
Integrate voice data, by the audio data coding be audio clear stream data according to the second coding rule；
The video clear stream data are encapsulated as object video, and the audio clear stream data are encapsulated as audio pair
As；
The object video and the audio object are stored as a multimedia clear stream file；
After receiving play instruction, the object video and audio object in the multimedia clear stream file are decapsulated respectively,
Obtain the video clear stream data and the audio clear stream data；
According to the decoding rule decoding video clear stream data corresponding with first coding rule, broadcast with forming video
Put data；And according to the decoding rule decoding audio clear stream data corresponding with second coding rule, to form sound
Frequency played data；
Play the video playback data and the audio played data.
For the object video adds video labeling, and for audio object adds audio identification；
The object video and audio object decapsulated respectively in the multimedia clear stream file, obtains the video clear
Flow data and the audio clear stream data include：
Object video in the multimedia clear stream file is recognized by the video labeling, and by the audio mark
Audio object in the identification multimedia clear stream file；
The object video and the audio object are decapsulated respectively, obtain the video clear stream data and the audio is clear
Flow data.
Optionally, the video playback data and audio played data played include：
The timestamp of timestamp and the audio object according to the object video synchronously plays the video playback number
According to the audio played data.
Optionally, first coding rule is H264 Video codings rule, and/or, second coding rule is AAC
Audio coding rule.
The present invention also provides a kind of recording playback terminal of multimedia file, including：
Video acquisition unit, for gathering video data；
Audio collection unit, for gathering voice data；
Video encoding unit, for according to the first coding rule by the video data encoding be video clear stream data；
Audio coding unit, for according to the second coding rule by the audio data coding be audio clear stream data；
Object encapsulation unit, for the video clear stream data to be encapsulated as into object video, and for by the audio
Clear stream data are encapsulated as audio object；
Clear stream memory cell, for the object video and the audio object to be stored as into a multimedia clear stream text
Part；
Decapsulation unit, for after play instruction is received, decapsulating regarding in the multimedia clear stream file respectively
Frequency object and audio object, obtain the video clear stream data and the audio clear stream data；
Decoding unit, for according to the decoding rule decoding video clear stream number corresponding with first coding rule
According to, forming video playback data, and for according to the decoding rule decoding sound corresponding with second coding rule
Frequency clear stream data, forming audio played data；
Broadcast unit, for playing the video playback data and the audio played data.
Optionally, the object encapsulation unit is additionally operable to as object video addition video labeling and is the sound
Frequency object adds audio identification；
The decapsulation unit recognizes the object video in the multimedia clear stream file according to the video labeling, and
Audio object in the multimedia clear stream file is recognized by the audio identification.
Optionally, timestamp synchronization of the broadcast unit according to the timestamp and the audio object of the object video
Play the video playback data and the audio played data.
Optionally, the video data encoding is that video is clear according to H264 Video codings rule by the video encoding unit
Flow data；And/or, the audio data coding is audio clear stream according to AAC audio codings rule by the audio coding unit
Data.
The multimedia document recording player method that the present invention is provided, by object video and audio object hybrid package at one
In multimedia clear stream file, multimedia terminal directly decodes rule decoding when multimedia clear stream file is played using known
Audio clear stream data in video clear stream data and audio object in object video.Compared to existing multimedia document recording
Method, no correctly storage is more during method provided in an embodiment of the present invention can avoid multimedia file storage method in the prior art
In the case of media attribute information, it is impossible to play the problem of multimedia file.
Brief description of the drawings
To be illustrated more clearly that background technology or technical scheme, below to prior art or specific embodiment
In the accompanying drawing that is used in combination be briefly described；It should be evident that below in conjunction with the accompanying drawing side of being only for of specific embodiment
Just understand the embodiment of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings；
Fig. 1 is the recording player method flow chart of multimedia file in the embodiment of the present invention；
Fig. 2 is the composition schematic diagram of the recording playback terminal of multimedia file in the embodiment of the present invention；
Wherein：10- records playback terminal, 101- video acquisition units, 102- audio collections unit, 103- Video coding lists
Unit, 104- audio coding units, 105- object encapsulations unit, 106- clear streams memory cell, 107- decapsulation units, 108- decodings
Unit, 109- broadcast units.
Specific embodiment
The present invention provides a kind of recording player method of multimedia file, the video clear stream data and audio that will be collected
Clear stream data storage to a multimedia clear stream file, in after receiving play instruction by decoding multimedia clear stream file
Video clear stream data and audio voice data, form video playback data and audio played data.In addition, the present invention also provides one
Plant the recording playback terminal for realizing foregoing multimedia document recording player method.
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
Fig. 1 is the recording player method flow chart of multimedia file in the embodiment of the present invention.Such as Fig. 1, what the present invention was provided
The recording player method of media file is comprised the following steps.It should be noted that multimedia document recording provided in an embodiment of the present invention
Player method can be used in the multimedia terminal with multimedia (at least including video and audio) collection and playing function；It is real
Border is when using, multimedia terminal is preferably the mobile terminals such as drive recorder, smart mobile phone, video camera.
S101：Collection video data, according to the first coding rule by video data encoding be video clear stream data；And adopt
Integrate voice data, by audio data coding be audio clear stream data according to the second coding rule.
To avoid producing ambiguity, video data and explaining property of voice data are defined first：Video data refers to many matchmakers
The data comprising video information that body terminal is gathered within a video acquisition cycle, voice data refers to multimedia terminal at one
The data comprising audio-frequency information of collection in the audio collection cycle.
In step S101, accounted for when data volume size can be reduced to video data and audio data coding, reducing follow-up storage
Memory space.By taking the MP4 document recording storage methods of current main flow as an example：Multimedia terminal can be compiled using H.264 video
Code rule is compressed to video data, makes the video clear stream data that video data encoding is H.264 form, and using senior
Audio coding (Advanced Audio Coding, AAC) rule is compressed to voice data, makes audio data coding be AAC
The audio clear stream data of form.Certainly, video data and voice data are also adopted by other codings well known by persons skilled in the art
Rule encoding is corresponding video clear stream data and audio clear stream data.
S102：Video clear stream data are encapsulated as object video, and audio clear stream data are encapsulated as audio object.
S103：Object video and audio object are stored as a multimedia clear stream file.
In the present embodiment, object video and audio object are stored in a multimedia clear stream file, therefore rear
Resuming studies has the demand for distinguishing object video and audio object in multimedia file when taking multimedia clear stream file.Therefore, multimedia
Terminal adds video labeling in the gauge outfit in object video, and audio identification is added in the gauge outfit of audio object.Subsequently, multimedia end
End can distinguish object video and audio object according to video labeling and audio identification.
Multimedia terminal play multimedia clear stream file when, the need with synchronous playing video data and voice data
Ask, therefore the present embodiment is when each object video and audio object is generated, and is that object video addition represents wherein video data
With respect to the video time stamp of acquisition time, and for audio object addition represents wherein audio of the voice data with respect to acquisition time
Timestamp.
In addition, to realize that video clear stream data and audio clear stream data are played in follow-up quick decoding, multimedia terminal uses
The method for mixing storage can be stored in multimedia file object video and audio object, i.e. multimedia terminal is by object video
It is added in multimedia clear stream file successively according to the sequencing for being formed with audio object.
In practical application, foregoing object video and audio object are serializability objects, by object video and sound
Frequency object is stored when in multimedia file, really by the data conversion in each serializability object into can be by hardware device
The data message of storage；Subsequent read multimedia file, then be that the data message that hardware device is stored is converted into serializability
Object.
S104:After receiving play instruction, the object video and audio object in multimedia clear stream file are decapsulated respectively,
Obtain video clear stream data and audio clear stream data.
S105：According to the regular decoding video clear stream data of decoding corresponding with the first coding rule, to form video playback
Data；And according to decoding rule decoding audio clear stream data corresponding with the second coding rule, to form audio played data；
S106:Play video playback data and audio played data.
After multimedia terminal receives play instruction, multimedia clear stream file, root are read in multimedia terminal in sequence
Object video and audio object are distinguished according to the audio identification in the video labeling and audio object in object video, and extracts video
Audio clear stream data in video clear stream data and audio object in object.
Corresponding with abovementioned steps S101, in S105, video is played in multimedia terminal according to H264 decoding rule decodings
Clear stream data, according to AAC decoding rule decoding audio clear stream data.
As it was previously stated, multimedia terminal is when video playback data and audio played data is played, according to video time stamp
With the synchronization that audio time stamp realizes video playback data and audio played data.Because the broadcasting of audio played data is more steady
It is fixed, so, in the present embodiment, multimedia terminal can play audio played data according to default broadcasting speed, and by than
Determine which frame video playback data played compared with audio time stamp and video time stamp matching.
Certainly, in other embodiments, if the demand without synchronous broadcasting video playback data and audio played data,
Also synchronous broadcast strategy can be not provided with, i.e., without adding video time stamp in object video, without being added in audio object
Audio time stamp.
When the multimedia files of form such as MP4 are played in existing multimedia terminal, if lacking multimedia attribute letter
Breath part, then multimedia terminal cannot be distinguished by out the video data and voice data of multimedia file media-data part, also without
Method decodes playing video data and voice data.And multimedia terminal just can be according to video counts after recording halt instruction is received
Multimedia attribute information is generated according to voice data, so occurring receiving exceptional instructions (such as powering off) in multimedia terminal
When, multimedia attribute information is not stored correctly, and subsequent multimedia terminal also cannot just play multimedia file.
It is different from foregoing multimedia document recording method, multimedia document recording player method provided in an embodiment of the present invention
By object video and audio object hybrid package in a multimedia clear stream file, multimedia clear stream is being played in multimedia terminal
During file, two kinds of objects are distinguished by the mark of object video and audio object, and directly using known decoding rule decoding
Audio clear stream data in video clear stream data and audio object in object video.Compared to existing multimedia document recording
Method, method provided in an embodiment of the present invention can avoid the multimedia terminal from cannot correctly storing multimedia when receiving exceptional instructions
Attribute information, cannot then play the problem of wherein voice data and video data.
The recording player method to multimedia file provided in an embodiment of the present invention is introduced above.It is foregoing many except providing
Media file is recorded outside player method, and the present invention also provides a kind of recording for realizing foregoing multimedia document recording player method and broadcasts
Put terminal.
Fig. 2 is the composition schematic diagram of the recording playback terminal of multimedia file in the embodiment of the present invention, such as Fig. 2, the present invention
The multimedia document recording playback terminal 10 of offer includes video acquisition unit 101, audio collection unit 102, Video coding list
Unit 103, audio coding unit 104, object encapsulation unit 105, clear stream memory cell 106, decapsulation unit 107, decoding unit
108 and broadcast unit 109.
Video acquisition unit 101 is used to gather video data；Audio collection unit 102 is used to gather voice data；Video
Coding unit 103 be used for according to the first coding rule by video data encoding be video clear stream data；Audio coding unit 104 is used
According to the second coding rule by audio data coding be audio clear stream data.
Object encapsulation unit 105 is used to for video clear stream data to be encapsulated as object video, and for by audio clear stream number
According to being encapsulated as audio object；Clear stream memory cell 106 is used to for object video and audio object to be stored as a multimedia clear stream
File；Decapsulation unit 107 is used for after play instruction is received, and the object video in multimedia clear stream file is decapsulated respectively
With audio object, obtain video clear stream data and audio clear stream data；Decoding unit 108 be used for according to the first coding rule pair
Decoding rule decoding video clear stream data, the formation video playback data answered, and for according to corresponding with the second coding rule
Decoding rule decoding audio clear stream data, form audio played data；Broadcast unit 109 be used for play video playback data and
Audio played data.
To realize the hybrid storage of object video and audio object, object encapsulation unit 105 is additionally operable to be object video
Addition video labeling, and for audio object adds audio identification；Corresponding, decapsulation unit 107 is according to video labeling
Recognize the object video in multimedia clear stream file, the audio object in multimedia clear stream file is recognized by audio identification.
To realize that video playback data and the synchronous of audio played data are played, object encapsulation unit 105 is also video pair
As adding video time stamp, being audio object addition audio time stamp；Broadcast unit 109 then according to video time stamp and audio when
Between stab and synchronous play video playback data and audio played data.
Corresponding with preceding method, video encoding unit 103 can be regular by video acquisition unit according to H264 Video codings
The video data compaction coding of 101 collections is video clear stream data, and audio coding unit 104 can be according to AAC audio codings rule
The Audio data compression that audio collection unit 102 is gathered is encoded to audio clear stream data.It is corresponding, decoding unit 108
Video clear stream data are then decoded as video playback data according to H264 decodings rule, rule is decoded according to ACC by audio clear stream
Data are decoded as audio played data.
The multimedia document recording player method in the embodiment of the present invention and recording playback terminal have been carried out in detail above
Introduce.This part is set forth using specific embodiment to principle of the invention and implementation method, the explanation of above example
It is only intended to help and understands core concept of the invention, without departing from the principles of the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Claims (8)
1. the recording player method of a kind of multimedia file, it is characterised in that comprise the following steps：
Collection video data, according to the first coding rule by the video data encoding be video clear stream data；And collection sound
Frequency according to, according to the second coding rule by the audio data coding be audio clear stream data；
The video clear stream data are encapsulated as object video, and the audio clear stream data are encapsulated as audio object；
The object video and the audio object are stored as a multimedia clear stream file；
After receiving play instruction, the object video and audio object in the multimedia clear stream file are decapsulated respectively, obtain
The video clear stream data and the audio clear stream data；
According to the decoding rule decoding video clear stream data corresponding with first coding rule, to form video playback number
According to；And according to the decoding rule decoding audio clear stream data corresponding with second coding rule, broadcast with forming audio
Put data；
Play the video playback data and the audio played data.
2. recording player method according to claim 1, it is characterised in that the recording player method also includes：
For the object video adds video labeling, and for audio object adds audio identification；
The object video and audio object decapsulated respectively in the multimedia clear stream file, obtains the video clear stream number
Include according to the audio clear stream data：
Object video in the multimedia clear stream file is recognized by the video labeling, and is known by the audio identification
Audio object in not described multimedia clear stream file；
The object video and the audio object are decapsulated respectively, obtain the video clear stream data and the audio clear stream number
According to.
3. recording player method according to claim 1, it is characterised in that the broadcasting video playback data and sound
Frequency played data includes：
The timestamp of timestamp and the audio object according to the object video synchronously play the video playback data and
The audio played data.
4. recording player method according to claim 1, it is characterised in that first coding rule is that H264 videos are compiled
Code rule, and/or, second coding rule is AAC audio codings rule.
5. the recording playback terminal of a kind of multimedia file, it is characterised in that including：
Video acquisition unit, for gathering video data；
Audio collection unit, for gathering voice data；
Video encoding unit, for according to the first coding rule by the video data encoding be video clear stream data；
Audio coding unit, for according to the second coding rule by the audio data coding be audio clear stream data；
Object encapsulation unit, for the video clear stream data to be encapsulated as into object video, and for by the audio clear stream
Data are encapsulated as audio object；
Clear stream memory cell, for the object video and the audio object to be stored as into a multimedia clear stream file；
Decapsulation unit, for after play instruction is received, decapsulating the video pair in the multimedia clear stream file respectively
As with audio object, obtain the video clear stream data and the audio clear stream data；
Decoding unit, for according to decoding rule decoding corresponding with first coding rule video clear stream data, with
Video playback data are formed, and for according to the decoding rule decoding audio clear stream corresponding with second coding rule
Data, forming audio played data；
Broadcast unit, for playing the video playback data and the audio played data.
6. recording playback terminal according to claim 5, it is characterised in that：
The object encapsulation unit is additionally operable to add video labeling and for the audio object adds sound for the object video
Frequency marking is known；
The decapsulation unit recognizes the object video in the multimedia clear stream file according to the video labeling, and passes through
The audio identification recognizes the audio object in the multimedia clear stream file.
7. recording playback terminal according to claim 5, it is characterised in that：
The broadcast unit is regarded according to the timestamp of the object video and the timestamp of the audio object are synchronously played
Frequency played data and the audio played data.
8. recording playback terminal according to claim 1, it is characterised in that：
The video data encoding is video clear stream data according to H264 Video codings rule by the video encoding unit；With/
Or, the audio data coding is audio clear stream data according to AAC audio codings rule by the audio coding unit.
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