CN107846607A - A kind of multi-stream data synchronously stores and back method - Google Patents
A kind of multi-stream data synchronously stores and back method Download PDFInfo
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- CN107846607A CN107846607A CN201710914973.XA CN201710914973A CN107846607A CN 107846607 A CN107846607 A CN 107846607A CN 201710914973 A CN201710914973 A CN 201710914973A CN 107846607 A CN107846607 A CN 107846607A
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23602—Multiplexing isochronously with the video sync, e.g. according to bit-parallel or bit-serial interface formats, as SDI
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/233—Processing of audio elementary streams
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
-
- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
-
- 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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
-
- 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
- H04N21/439—Processing of audio elementary streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
-
- 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
- H04N21/81—Monomedia components thereof
- H04N21/8166—Monomedia components thereof involving executable data, e.g. software
- H04N21/8173—End-user applications, e.g. Web browser, game
-
- 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
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
Abstract
The present invention relates to a kind of multi-stream data synchronization storage and back method, including multi-stream data storage server and playback system, the multi-stream data storage server includes SETUP files, the SETUP files include some data flows, the SETUP is used to store data to the corresponding file handle of each data flow, the data flow includes audio stream, first PCM stream, second PCM stream, first video flowing, second video flowing and the 3rd video flowing, the data flow is provided with a data packet head before storing every time, the millisecond number that the data packet head record storage time starts, the playback system passes through file handle reading data flow, the playback system is positioned by the millisecond number of data packet head.Multiple flow datas are stored by unified, single software uniformly stores multi-stream data, and the data of each stream are added with unified time tag, can ensure that all data flows being capable of synchronized playback during playback.
Description
Technical field
The invention belongs to aeronautical data acquisition technique field, more particularly to a kind of multi-stream data synchronously stores and playback side
Method.
Background technology
With the continuous progressive of Flight Test Technique and develop, the complexity of the data flow of real-time testing and multifarious raising,
Scientific research is taken a flight test for the quick requirement for judging flight reappearance also more and more higher, and multithread is carried out to flying quality at once after flight
Synchronized playback turns into the vital task for improving flight test efficiency.At present, during multiple synchronization of data streams playback, with manual intervention
Mode control the beginnings of different data streams, pause, selections, etc. operation realize synchronization, positioning is inaccurate, cumbersome, when synchronous
Between error it is big, whole structure is difficult to meet engine request.
The content of the invention
Type of the present invention aims to overcome that the above-mentioned problems in the prior art, there is provided a kind of multi-stream data is synchronously deposited
Storage and back method, this patent store multiple flow datas using unified, can ensure that all data flows can be returned synchronously during playback
Put.
To achieve the above object, the technical solution adopted by the present invention is as follows.
A kind of multi-stream data synchronously stores and back method, it is characterised in that：Including multi-stream data storage server and return
Place system, the multi-stream data storage server include SETUP files, and the SETUP files include some data flows, described
SETUP is used to store data to the corresponding file handle of each data flow, and the data flow includes audio stream, the first PCM
Stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing, the data flow are provided with one before storing every time
Data packet head, the millisecond number that the data packet head record storage time starts, the playback system read number by file handle
According to stream, the playback system is positioned by the millisecond number of data packet head, and it is soft that the playback system includes monitor terminal control
Part, video jukebox software, PARAMETER DRAFTING software, transmission audio and playback controls bar.
The multi-stream data storage server is provided with clip audio optimization system.
The multi-stream data storage server is provided with video processing module, and the video processing module utilizes the son obtained
Variable assignments is replaced to obtain the relevant variable in video processing applications program code segments, and running the Video processing after variable replacement should
Video flowing is handled with program code.
The multi-stream data storage server is connected with the output end of data amplifier, first PCM stream and the 2nd PCM
Flow input data amplifier.
The multi-stream data storage server is connected with copying equipment.
The multi-stream data storage server is connected with unlimited signal generator.
The file handle includes obtaining the specific path of data flow, and matches with data flow to be solved.
1st, multiple data flows store simultaneously by a multi-stream data storage server, then read by file handle
According to being streamed in playback system, playback system can repeat playing for access, and the millisecond stored by data packet head is ripe to each
The data of stream all add unified time tag, and the millisecond number that the same day 0: 0 assigns to the current time is have recorded in data packet head, is returned
Positioned when putting according to this millisecond of number, millisecond number is easy to that positioning is hard-cover, and lock in time error is small, can ensure institute during playback
Have data flow can synchronized playback, be effectively guaranteed audio stream, the first PCM stream, the second PCM stream, the first video flowing, second regard
While the various data flows such as frequency stream and the 3rd video flowing store, monitor terminal control software, video playback in playback system
Playback data stream can have been reached flow data storage and playback by software, PARAMETER DRAFTING software, transmission audio and playback controls bar
It can carry out simultaneously.
2nd, the noise in audio stream can be handled by audio optimization system, using sound clarity during playback, without noise.
3rd, the relevant variable for replacing to obtain in video processing applications program code segments by sub- variable assignments handles video flowing,
Multiple video flowing sections such as the first video flowing, the second video flowing and the 3rd video flowing are enable to be optimized, the image clearly of playback.
4th, the first PCM stream and the second PCM stream pulse signal can be strengthened by data amplifier, due to the sound in nature
Sound is extremely complex, and waveform is extremely complex, and any digital audio encoding scheme all damages, and strengthens numeral letter by amplifier
Number, impaired coding can be reduced.
5th, data flow is backed up by copying equipment, prevents operating personnel's operational error from losing data flow.
6th, the information of data flow can be occurred to arrive other places by unlimited signal generator, while can also be remote
It was observed that the content of playback.
7th, matched by file handle and each data flow, the information of each data flow of playback that can be independent.
Brief description of the drawings
Fig. 1 is the structural representation of multi-stream data storage server.
Fig. 2 is the structural representation of playback system.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Fig. 1 to 2, a kind of multi-stream data synchronously storage and back method, including multi-stream data storage server and playback
System, the multi-stream data storage server include SETUP files, and the SETUP files include some data flows, described
SETUP is used to store data to the corresponding file handle of each data flow, and the data flow includes audio stream, the first PCM
Stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing, the data flow are provided with one before storing every time
Data packet head, the millisecond number that the data packet head record storage time starts, the playback system read number by file handle
According to stream, the playback system is positioned by the millisecond number of data packet head, and it is soft that the playback system includes monitor terminal control
Part, video jukebox software, PARAMETER DRAFTING software, transmission audio and playback controls bar.
For multi-stream data storage server at work, it is necessary to first establish a SETUP file, SETUP document definitions are every
The type of individual stream（Audio or video or PCM）, multicast address, multicast port, after loading SETUP files, give each stream
Open a file handle, for storing data flow（Including audio stream, the first PCM stream, the second PCM stream, the first video flowing,
Two video flowings and the 3rd video flowing etc.）, for each data flow, a thread is dynamically opened up, data flow is received and stores,
Add a data packet head before the data block stored each time, be the millisecond number for assigning to the current time on the same day 0: 0 in packet header, return
Positioned when putting according to this millisecond of number, call parameters mapping software and calling monitor terminal control software in playback system
For required digital independent to video jukebox software, then by calling video jukebox software replay image, playback system passes through transmission
Audio forms sound, and when load data, the data that each flow can generate one according to the temporal information in packet header of data flow
Individual index, playback controls bar can quickly position hereof according to temporal information, during playback of data, with the time of audio stream
As standard, each software can be according to the time of current playback, and the label in data flow packet header carries out fast positioning, while returning
Put while position, if some flows away too fast, then can suitably regulate the speed suitable with audio stream, if to playback controls
Bar is pulled, then all data flows all quickly jump to the position of label at the same time and played back, and pass through a multithread
Data storage server to multiple data flows store simultaneously, then is sent to playback system by file handle reading data flow
Interior, playback system can repeat playing, by the ripe data to each stream of millisecond that data packet head stores plus it is unified when
Between label, have recorded the millisecond number that the same day 0: 0 assigns to the current time in data packet head, carried out according to this millisecond of number during playback
Positioning, millisecond number are easy to that positioning is hard-cover, and lock in time error is small, can ensure during playback all data flows can synchronized playback,
It is each to be effectively guaranteed audio stream, the first PCM stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing etc.
While kind data flow storage, monitor terminal control software, video jukebox software in playback system, PARAMETER DRAFTING software, hair
Send audio and playback controls bar playback data stream can be reached flow data storage and can have been carried out simultaneously with playback, after flight
Aviatrix comment on playback, improve and comment on efficiency, make to comment on more efficiently, it is directly perceived.
Embodiment 2
As shown in Fig. 1 to 2, a kind of multi-stream data synchronously storage and back method, including multi-stream data storage server and playback
System, the multi-stream data storage server include SETUP files, and the SETUP files include some data flows, described
SETUP is used to store data to the corresponding file handle of each data flow, and the data flow includes audio stream, the first PCM
Stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing, the data flow are provided with one before storing every time
Data packet head, the millisecond number that the data packet head record storage time starts, the playback system read number by file handle
According to stream, the playback system is positioned by the millisecond number of data packet head, and it is soft that the playback system includes monitor terminal control
Part, video jukebox software, PARAMETER DRAFTING software, transmission audio and playback controls bar.
The multi-stream data storage server is provided with clip audio optimization system.
The multi-stream data storage server is provided with video processing module, and the video processing module utilizes the son obtained
Variable assignments is replaced to obtain the relevant variable in video processing applications program code segments, and running the Video processing after variable replacement should
Video flowing is handled with program code.
For multi-stream data storage server at work, it is necessary to first establish a SETUP file, SETUP document definitions are every
The type of individual stream（Audio or video or PCM）, multicast address, multicast port, after loading SETUP files, give each stream
Open a file handle, for storing data flow（Including audio stream, the first PCM stream, the second PCM stream, the first video flowing,
Two video flowings and the 3rd video flowing etc.）, for each data flow, a thread is dynamically opened up, data flow is received and stores,
Add a data packet head before the data block stored each time, be the millisecond number for assigning to the current time on the same day 0: 0 in packet header, return
Positioned when putting according to this millisecond of number, call parameters mapping software and calling monitor terminal control software in playback system
For required digital independent to video jukebox software, then by calling video jukebox software replay image, playback system passes through transmission
Audio forms sound, and when load data, the data that each flow can generate one according to the temporal information in packet header of data flow
Individual index, playback controls bar can quickly position hereof according to temporal information, during playback of data, with the time of audio stream
As standard, each software can be according to the time of current playback, and the label in data flow packet header carries out fast positioning, while returning
Put while position, if some flows away too fast, then can suitably regulate the speed suitable with audio stream, if to playback controls
Bar is pulled, then all data flows all quickly jump to the position of label at the same time and played back, and pass through a multithread
Data storage server to multiple data flows store simultaneously, then is sent to playback system by file handle reading data flow
Interior, playback system can repeat playing, by the ripe data to each stream of millisecond that data packet head stores plus it is unified when
Between label, have recorded the millisecond number that the same day 0: 0 assigns to the current time in data packet head, carried out according to this millisecond of number during playback
Positioning, millisecond number are easy to that positioning is hard-cover, and lock in time error is small, can ensure during playback all data flows can synchronized playback,
It is each to be effectively guaranteed audio stream, the first PCM stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing etc.
While kind data flow storage, monitor terminal control software, video jukebox software in playback system, PARAMETER DRAFTING software, hair
Send audio and playback controls bar playback data stream can be reached flow data storage and can have been carried out simultaneously with playback, after flight
Aviatrix comment on playback, improve and comment on efficiency, make to comment on more efficiently, it is directly perceived.
The noise in audio stream can be handled by audio optimization system, using sound clarity during playback, without noise.
The relevant variable for replacing to obtain in video processing applications program code segments by sub- variable assignments handles video flowing, makes
Multiple video flowing sections such as the first video flowing, the second video flowing and the 3rd video flowing can be optimized, the image clearly of playback.
Embodiment 3
As shown in Fig. 1 to 2, a kind of multi-stream data synchronously storage and back method, including multi-stream data storage server and playback
System, the multi-stream data storage server include SETUP files, and the SETUP files include some data flows, described
SETUP is used to store data to the corresponding file handle of each data flow, and the data flow includes audio stream, the first PCM
Stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing, the data flow are provided with one before storing every time
Data packet head, the millisecond number that the data packet head record storage time starts, the playback system read number by file handle
According to stream, the playback system is positioned by the millisecond number of data packet head, and it is soft that the playback system includes monitor terminal control
Part, video jukebox software, PARAMETER DRAFTING software, transmission audio and playback controls bar.
The multi-stream data storage server is provided with clip audio optimization system.
The multi-stream data storage server is provided with video processing module, and the video processing module utilizes the son obtained
Variable assignments is replaced to obtain the relevant variable in video processing applications program code segments, and running the Video processing after variable replacement should
Video flowing is handled with program code.
The multi-stream data storage server is connected with the output end of data amplifier, first PCM stream and the 2nd PCM
Flow input data amplifier.
The multi-stream data storage server is connected with copying equipment.
For multi-stream data storage server at work, it is necessary to first establish a SETUP file, SETUP document definitions are every
The type of individual stream（Audio or video or PCM）, multicast address, multicast port, after loading SETUP files, give each stream
Open a file handle, for storing data flow（Including audio stream, the first PCM stream, the second PCM stream, the first video flowing,
Two video flowings and the 3rd video flowing etc.）, for each data flow, a thread is dynamically opened up, data flow is received and stores,
Add a data packet head before the data block stored each time, be the millisecond number for assigning to the current time on the same day 0: 0 in packet header, return
Positioned when putting according to this millisecond of number, call parameters mapping software and calling monitor terminal control software in playback system
For required digital independent to video jukebox software, then by calling video jukebox software replay image, playback system passes through transmission
Audio forms sound, and when load data, the data that each flow can generate one according to the temporal information in packet header of data flow
Individual index, playback controls bar can quickly position hereof according to temporal information, during playback of data, with the time of audio stream
As standard, each software can be according to the time of current playback, and the label in data flow packet header carries out fast positioning, while returning
Put while position, if some flows away too fast, then can suitably regulate the speed suitable with audio stream, if to playback controls
Bar is pulled, then all data flows all quickly jump to the position of label at the same time and played back, and pass through a multithread
Data storage server to multiple data flows store simultaneously, then is sent to playback system by file handle reading data flow
Interior, playback system can repeat playing, by the ripe data to each stream of millisecond that data packet head stores plus it is unified when
Between label, have recorded the millisecond number that the same day 0: 0 assigns to the current time in data packet head, carried out according to this millisecond of number during playback
Positioning, millisecond number are easy to that positioning is hard-cover, and lock in time error is small, can ensure during playback all data flows can synchronized playback,
It is each to be effectively guaranteed audio stream, the first PCM stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing etc.
While kind data flow storage, monitor terminal control software, video jukebox software in playback system, PARAMETER DRAFTING software, hair
Send audio and playback controls bar playback data stream can be reached flow data storage and can have been carried out simultaneously with playback, after flight
Aviatrix comment on playback, improve and comment on efficiency, make to comment on more efficiently, it is directly perceived.
The noise in audio stream can be handled by audio optimization system, using sound clarity during playback, without noise.
The relevant variable for replacing to obtain in video processing applications program code segments by sub- variable assignments handles video flowing, makes
Multiple video flowing sections such as the first video flowing, the second video flowing and the 3rd video flowing can be optimized, the image clearly of playback.
First PCM stream and the second PCM stream pulse signal can be strengthened by data amplifier, due to the sound in nature
Extremely complex, waveform is extremely complex, and any digital audio encoding scheme all damages, and strengthens data signal by amplifier,
Impaired coding can be reduced.
Data flow is backed up by copying equipment, prevents operating personnel's operational error from losing data flow.
Embodiment 4
As shown in Fig. 1 to 2, a kind of multi-stream data synchronously storage and back method, including multi-stream data storage server and playback
System, the multi-stream data storage server include SETUP files, and the SETUP files include some data flows, described
SETUP is used to store data to the corresponding file handle of each data flow, and the data flow includes audio stream, the first PCM
Stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing, the data flow are provided with one before storing every time
Data packet head, the millisecond number that the data packet head record storage time starts, the playback system read number by file handle
According to stream, the playback system is positioned by the millisecond number of data packet head, and it is soft that the playback system includes monitor terminal control
Part, video jukebox software, PARAMETER DRAFTING software, transmission audio and playback controls bar.
The multi-stream data storage server is provided with clip audio optimization system.
The multi-stream data storage server is provided with video processing module, and the video processing module utilizes the son obtained
Variable assignments is replaced to obtain the relevant variable in video processing applications program code segments, and running the Video processing after variable replacement should
Video flowing is handled with program code.
The multi-stream data storage server is connected with the output end of data amplifier, first PCM stream and the 2nd PCM
Flow input data amplifier.
The multi-stream data storage server is connected with copying equipment.
The multi-stream data storage server is connected with unlimited signal generator.
The file handle includes obtaining the specific path of data flow, and matches with data flow to be solved.
For multi-stream data storage server at work, it is necessary to first establish a SETUP file, SETUP document definitions are every
The type of individual stream（Audio or video or PCM）, multicast address, multicast port, after loading SETUP files, give each stream
Open a file handle, for storing data flow（Including audio stream, the first PCM stream, the second PCM stream, the first video flowing,
Two video flowings and the 3rd video flowing etc.）, for each data flow, a thread is dynamically opened up, data flow is received and stores,
Add a data packet head before the data block stored each time, be the millisecond number for assigning to the current time on the same day 0: 0 in packet header, return
Positioned when putting according to this millisecond of number, call parameters mapping software and calling monitor terminal control software in playback system
For required digital independent to video jukebox software, then by calling video jukebox software replay image, playback system passes through transmission
Audio forms sound, and when load data, the data that each flow can generate one according to the temporal information in packet header of data flow
Individual index, playback controls bar can quickly position hereof according to temporal information, during playback of data, with the time of audio stream
As standard, each software can be according to the time of current playback, and the label in data flow packet header carries out fast positioning, while returning
Put while position, if some flows away too fast, then can suitably regulate the speed suitable with audio stream, if to playback controls
Bar is pulled, then all data flows all quickly jump to the position of label at the same time and played back, and pass through a multithread
Data storage server to multiple data flows store simultaneously, then is sent to playback system by file handle reading data flow
Interior, playback system can repeat playing, by the ripe data to each stream of millisecond that data packet head stores plus it is unified when
Between label, have recorded the millisecond number that the same day 0: 0 assigns to the current time in data packet head, carried out according to this millisecond of number during playback
Positioning, millisecond number are easy to that positioning is hard-cover, and lock in time error is small, can ensure during playback all data flows can synchronized playback,
It is each to be effectively guaranteed audio stream, the first PCM stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing etc.
While kind data flow storage, monitor terminal control software, video jukebox software in playback system, PARAMETER DRAFTING software, hair
Send audio and playback controls bar playback data stream can be reached flow data storage and can have been carried out simultaneously with playback, after flight
Aviatrix comment on playback, improve and comment on efficiency, make to comment on more efficiently, it is directly perceived.
The noise in audio stream can be handled by audio optimization system, using sound clarity during playback, without noise.
The relevant variable for replacing to obtain in video processing applications program code segments by sub- variable assignments handles video flowing, makes
Multiple video flowing sections such as the first video flowing, the second video flowing and the 3rd video flowing can be optimized, the image clearly of playback.
First PCM stream and the second PCM stream pulse signal can be strengthened by data amplifier, due to the sound in nature
Extremely complex, waveform is extremely complex, and any digital audio encoding scheme all damages, and strengthens data signal by amplifier,
Impaired coding can be reduced.
Data flow is backed up by copying equipment, prevents operating personnel's operational error from losing data flow.
The information of data flow can be occurred to arrive other places by unlimited signal generator, while can also seen at a distance
Observe the content of playback.
Matched by file handle and each data flow, the information of each data flow of playback that can be independent.
Embodiment described above only expresses the embodiment of the application, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the application protection domain can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, on the premise of technical scheme design is not departed from, various modifications and improvements can be made, these belong to this
The protection domain of application.
Claims (7)
1. a kind of multi-stream data synchronously stores and back method, it is characterised in that：Including multi-stream data storage server and playback
System, the multi-stream data storage server include SETUP files, and the SETUP files include some data flows, described
SETUP is used to store data to the corresponding file handle of each data flow, and the data flow includes audio stream, the first PCM
Stream, the second PCM stream, the first video flowing, the second video flowing and the 3rd video flowing, the data flow are provided with one before storing every time
Data packet head, the millisecond number that the data packet head record storage time starts, the playback system read number by file handle
According to stream, the playback system is positioned by the millisecond number of data packet head, and it is soft that the playback system includes monitor terminal control
Part, video jukebox software, PARAMETER DRAFTING software, transmission audio and playback controls bar.
2. a kind of multi-stream data as claimed in claim 1 synchronously stores and back method, it is characterised in that：The multi-stream data
Storage server is provided with clip audio optimization system.
3. a kind of multi-stream data as claimed in claim 1 synchronously stores and back method, it is characterised in that：The multi-stream data
Storage server is provided with video processing module, and the video processing module is replaced to obtain video using the sub- variable assignments of acquisition
The relevant variable in application code section is handled, runs the video processing applications program code processing video after variable replacement
Stream.
4. a kind of multi-stream data as claimed in claim 1 synchronously stores and back method, it is characterised in that：The multi-stream data
Storage server is connected with the output end of data amplifier, first PCM stream and the second PCM stream input data amplifier.
5. a kind of multi-stream data as claimed in claim 1 synchronously stores and back method, it is characterised in that：The multi-stream data
Storage server is connected with copying equipment.
6. a kind of multi-stream data as claimed in claim 1 synchronously stores and back method, it is characterised in that：The multi-stream data
Storage server is connected with unlimited signal generator.
7. a kind of multi-stream data as claimed in claim 1 synchronously stores and back method, it is characterised in that：The file handle
Including obtaining the specific path of data flow, and match with data flow to be solved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710914973.XA CN107846607A (en) | 2017-09-30 | 2017-09-30 | A kind of multi-stream data synchronously stores and back method |
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| CN201710914973.XA CN107846607A (en) | 2017-09-30 | 2017-09-30 | A kind of multi-stream data synchronously stores and back method |
Publications (1)
| Publication Number | Publication Date |
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| CN107846607A true CN107846607A (en) | 2018-03-27 |
Family
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| CN201710914973.XA Pending CN107846607A (en) | 2017-09-30 | 2017-09-30 | A kind of multi-stream data synchronously stores and back method |
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| CN108966027A (en) * | 2018-08-15 | 2018-12-07 | 郑州云海信息技术有限公司 | A kind of audio video synchronization back method and device |
| CN114598910A (en) * | 2022-02-23 | 2022-06-07 | 中科芯集成电路有限公司 | High-precision time synchronization playback control method for multi-channel heterogeneous video |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114598910B (en) * | 2022-02-23 | 2024-01-19 | 中科芯集成电路有限公司 | High-precision time synchronization playback control method for multipath heterogeneous video |
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