CN110166834A - A kind of data playing method, device and storage medium - Google Patents
A kind of data playing method, device and storage medium Download PDFInfo
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- CN110166834A CN110166834A CN201810140439.2A CN201810140439A CN110166834A CN 110166834 A CN110166834 A CN 110166834A CN 201810140439 A CN201810140439 A CN 201810140439A CN 110166834 A CN110166834 A CN 110166834A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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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
- H04N21/234—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
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26291—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for providing content or additional data updates, e.g. updating software modules, stored at the client
-
- 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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
-
- 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
-
- 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
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- 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
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
Abstract
The embodiment of the invention discloses a kind of data playing method, device and storage mediums；The embodiment of the present invention is identified using data playback request is received according to the slice that data playback request obtains latest data slice in current live data flow；It is sliced according to slice mark from server downloading latest data；Obtain the downloading duration of latest data slice；The network delay of terminal is obtained according to downloading duration, and plays the data slicer of downloading.The program can obtain the network delay of terminal based on the downloading duration of downloading latest data slice for the first time, send the delay of test bag test network without additional, can promote the starting speed of live data broadcasting and save bandwidth resources.
Description
Technical field
The present invention relates to direct seeding technique fields, and in particular to a kind of data playing method, device and storage medium.
Background technique
With the continuous development of network technology, network direct broadcasting technology has become social hot spot at present, miscellaneous
Live streaming platform emerges one after another.
Current live broadcast system is also known as reciprocity internet technique using point-to-point (peer-to-peer, P2P) and realizes view
The problems such as frequency data interaction, solves server end resource and bandwidth pressure is big, and the video quality after user volume promotion reduces.
In live broadcast system (abbreviation P2P live broadcast system) based on P2P then server can first be sliced live stream
Distribute again to come the consistency of reaching data, under the terminal in P2P live broadcast system is since when knowing first data slicer
Carry, behind again timing continuously download subsequent slice.
Wherein, in the live broadcast system based on P2P, terminal is just needed when starting and playing live data to net used in terminal
It is an important link that network, which carries out delayed test,.The mode of network delay test at present is mainly surveyed by sending to server end
Examination packet, then, the response bag of statistical test packet detects network test.
It needs to expend very much certain time length however, terminal carries out delayed test to network, it is thus impossible to which number is broadcast live in quick start
According to broadcasting.
Summary of the invention
The embodiment of the present invention provides a kind of data playing method, device and storage medium, can promote live data broadcasting
Starting speed.
The embodiment of the present invention provides a kind of data playing method, comprising:
Receive data playback request；
The slice mark of latest data slice in current live data flow is obtained according to the data playback request；
The latest data slice is downloaded from server according to slice mark；
Obtain the downloading duration of the latest data slice；
The network delay of the terminal is obtained according to the downloading duration, and plays the data slicer of downloading.
Correspondingly, the embodiment of the present invention also provides a kind of data replay apparatus, comprising:
Receiving unit, for receiving data playing request；
Mark acquiring unit is sliced for obtaining latest data in current live data flow according to the data playback request
Slice mark；
It is sliced download unit, is sliced for downloading the latest data from server according to slice mark；
Duration acquiring unit, for obtaining the downloading duration of the latest data slice；
Broadcast unit for obtaining the network delay of the terminal according to the downloading duration, and plays the data of downloading
Slice.
Correspondingly, the embodiment of the present invention also provides a kind of storage medium, the storage medium is stored with instruction, described instruction
The step of method of any offer of the embodiment of the present invention is provided when being executed by processor.
The embodiment of the present invention is obtained in current live data flow using data playback request is received according to data playback request
The slice mark of latest data slice；It is sliced according to slice mark from server downloading latest data；Obtain latest data slice
Downloading duration；The network delay of terminal is obtained according to downloading duration, and plays the data slicer of downloading.The program can be based on
It downloads the downloading duration of latest data slice for the first time to obtain the network delay of terminal, sends test bag test network without additional
Delay can promote the starting speed of live data broadcasting and save bandwidth resources.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 a is the schematic diagram of a scenario of live broadcast system provided in an embodiment of the present invention；
Fig. 1 b is the flow diagram of data playing method provided in an embodiment of the present invention；
Fig. 1 c is the timing diagram of megative priming provided in an embodiment of the present invention；
Fig. 1 d is the slow broadcasting schematic diagram of existing active drawing；
Fig. 2 a is another schematic diagram of a scenario of live broadcast system provided in an embodiment of the present invention；
Fig. 2 b is the configuration diagram of live broadcast system provided in an embodiment of the present invention；
Fig. 2 c is another flow diagram of data playing method provided in an embodiment of the present invention
Fig. 3 a is second of structural schematic diagram of data replay apparatus provided in an embodiment of the present invention；
Fig. 3 b is the third structural schematic diagram of data replay apparatus provided in an embodiment of the present invention；
Fig. 3 c is the 4th kind of structural schematic diagram of data replay apparatus provided in an embodiment of the present invention；
Fig. 3 d is the 5th kind of structural schematic diagram of data replay apparatus provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of terminal provided in an embodiment of the present invention.
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, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of data playing method, device and storage mediums.
The embodiment of the invention provides a kind of live broadcast system, which may include any provided by the embodiment of the present invention
Kind data replay apparatus.The data replay apparatus can integrate in the terminal.The terminal can set for mobile phone, tablet computer etc.
It is standby.In addition, the live broadcast system can also include other equipment, for example, server etc..
For example, with reference to Fig. 1 a, a kind of live broadcast system is provided, which includes: terminal 10 and server 20；Service
Device 20 is connect with terminal 10 by network 30.It wherein, include router, gateway etc. network entity in network 30 and network 50,
In figure and to illustrate.Server 20 can carry out data interaction by cable network or wireless network and server 20, such as
Can from server 20 download application (as live streaming application or video playing application) and/or application updated data package and/or with answer
With relevant data information or business information.Wherein, terminal 10 can be the equipment such as mobile phone, tablet computer, laptop, figure
1a is so that terminal 10 is mobile phone as an example.Application needed for various users can be equipped in the terminal 10, for example have amusement function
The application (such as live streaming application, audio, which plays, to be applied, game application, ocr software) of energy, for another example has the application of service function (such as
Digital map navigation application, purchase by group using etc.).
Based on system shown in above-mentioned Fig. 1 a, by taking live streaming application as an example, terminal 10 is pressed from server 20 by network 30
It asks live streaming to apply and/or be broadcast live using updated data package according to that need to download and/or applies relevant data information or business to live streaming
Information (such as live data).Number can receive when terminal 10 starts to play live data using present invention method
According to playing request, identified according to the slice that data playback request obtains latest data slice in current live data flow；According to cutting
Piece mark is sliced from server downloading latest data；Obtain the downloading duration of latest data slice；It is obtained eventually according to downloading duration
The network delay at end, and play the data slicer of downloading.
The example of above-mentioned Fig. 1 a is a system architecture example for realizing the embodiment of the present invention, and the embodiment of the present invention is not
It is limited to system structure shown in above-mentioned Fig. 1 a, is based on the system architecture, proposes each embodiment of the present invention.
In one embodiment, a kind of data playing method is provided, can be executed by the processor of terminal, such as Fig. 1 b institute
Show, which includes:
101, data playback request is received.
Wherein, data playback request can be triggered by user, for example, can apply boundary in live streaming application or video playing
One playback interface is set on face, and user can pass through the playback interface trigger data playing request.
Wherein, there are many forms of expression of playback interface, for example, input frame, the forms such as icon, button
For example, a START button is arranged at live streaming interface, triggering generation data playback is asked when the button when the user clicks
It asks, at this point, the data playback request can be received.
For another example, user opens live streaming application, when live streaming homepage clicks the live streaming title of some recommendation, can trigger life
At data playback request.
In implementing one, data playback request can carry the information such as the mark of live data streams for needing to play.
102, it is identified according to the slice that data playback request obtains latest data slice in current live data flow.
In live broadcast system, server-side can be sliced or be cut to live data streams, for example be cut once i.e. often every 1s
A slice is generated every 1s, then, data slicer is distributed to terminal and is played out.
Therefore, wherein it is that server-side is newest when being sliced to live data streams that latest data, which is sliced (can be denoted as xPiece),
The data slicer of generation namely the newest data slicer being cut into.
As in P2P live broadcast system in live broadcast system, slice server can be sliced live data streams, and will most
The slice mark (can be denoted as xPieceId) of newly generated data slicer is updated or is synchronized in slice state server.Its
In, it is sliced the slice mark that the latest data slice of each live data streams is preserved in server.
It therefore, in one embodiment, can be according to data playback request from sliced after receiving data playback request
The slice that latest data slice in current live data flow is obtained in state server identifies (xPieceId).
For example, can send newest slice according to data playback request tangential section state server identifies acquisition request, it should
Request carries the stream identification for needing the live data streams played；Slice state server can be searched according to stream identification
And return to the latest data slice mark of the live data streams.
103, it is sliced according to slice mark from server downloading latest data.
Wherein, which can be with the slice storage server in live broadcast system, at this point it is possible to be identified according to slice
(xPieceId) from slice storage server downloading latest data slice.
For example, the data acquisition request for carrying slice mark can be sent with tangential section storage server, it is sliced storage service
Device can return to the slice according to the data acquisition request and identify corresponding latest data slice.
In one embodiment, slice mark can be mapped to the address information of data slicer, such as URL, at this point it is possible to according to
The address information request of slice obtains latest data slice.For example, step " downloads latest data from server according to slice mark
It is sliced ", may include:
The address information for obtaining latest data slice is identified according to slice；
It is sliced according to address information to from server downloading latest data.
For example, xPieceId can be mapped to the URL of latest data slice, then, requested according to the URL from server
Download latest data slice.
104, the downloading duration of latest data slice is obtained.
Wherein, obtain the downloading duration of latest data slice mode can there are many, can for example, in one embodiment
To start timer when starting and downloading latest data slice, when detecting that downloading is completed, the timing duration of timer is read,
The duration is the downloading duration of latest data slice.
For another example, in one embodiment, it is contemplated that network delay will lead to data playback Caton, such as be sliced in latest data
After finishing playing, since network delay causes follow-up data slice that cannot reach in time, it may appear that play Caton.For
The fact that aforementioned, needs to download the data slicer before latest data slice, the data slicer before latest data slice
Start to play, to mitigate data playback Caton.
Data playback Caton is combined in order to obtain slice downloading duration, downloading latest data slice can be passed through
Historical data before is sliced to obtain the downloading duration of latest data slice, to mitigate data playback Caton.That is, step
" downloading duration for obtaining latest data slice " may include:
Every preset time period is sliced to the historical data before server request latest data slice；
When detecting that latest data slice downloading is completed, the number of requests of historical data slice is obtained；
The downloading duration of latest data slice is obtained according to number of requests and preset time period.
Wherein, historical data slice cuts the data slicer generated before generating latest data slice by server-side,
For example, a upper data slicer for latest data slice, upper data slicer of latest data slice etc..
For example, latest data slice is data slicer n, historical data slice can be data slicer n-1, data slicer n-
2 etc., n are positive integer.
Wherein, the embodiment of the present invention can obtain the history of historical data slice based on the slice mark that latest data is sliced
Slice mark (such as identifies according to trimming or process is named to derive), and then, every preset time period is sliced according to history and identifies
To the historical data slice of server request response.For example, historical data slice can when latest data slice is data slicer P0
Think data slicer P-1, data slicer P-2 etc..
Wherein, preset time period can be set according to actual needs, for example can be 1s, 2s etc..In one embodiment,
Preset time period can based on the slice cycle set of data slicer, for example, every 1s to live data streams be sliced when, then,
The preset time period can be 1s etc..
The program can latest data be sliced download during, timing request latest data slice before history number
According to slice, the downloading duration of latest data slice, namely reverse downloading are obtained by the historical data number of sections of request, it should
Scheme obtains latest data slice in the way of the free time downloads historical data slice of downloading latest data slice
Downloading duration takes full advantage of spare time resource, saves the acquisition time of downloading duration, can reduce live streaming delay；And
And the program downloads historical data can be sliced while obtaining the downloading duration of latest data slice, it is ensured that after broadcasting starts
There is enough data slicers to play, plays Caton caused by avoiding network delay and causing follow-up data slice that cannot reach in time
Problem can mitigate the Caton of live data broadcasting.
In one embodiment, the next data that can start latest data slice when latest data is sliced and has downloaded are cut
Piece, for example, each certain time request historical data is cut, until newest number before latest data slice request has not responded
It has been responded according to slice request after having downloaded, just next data slicer is downloaded in request, this process is properly termed as " megative priming ".
For example, with reference to Fig. 1 c, it is newest every request one in t seconds during latest data slice xPieceId downloading
Historical data slice before data slicer xPieceId, when latest data, which is sliced downloading, to be completed, if historical data is sliced
Number of requests be m, at this point, latest data slice downloading duration Td=m*t, wherein m is positive integer, and t can be according to reality
Demand setting, such as 1s, 2s etc..
Utilize " megative priming " can be while calculating latest data slice xPieceId downloading duration, downloading is more gone through
History data slicer not only can save the calculating duration of latest data slice xPieceId downloading duration, can also be to broadcast
It puts and more played datas is provided, therefore, live streaming delay can be reduced and mitigate live streaming Caton.
105, the network delay of terminal is obtained according to downloading duration, and plays the data slicer of downloading.
The embodiment of the present invention can judge the network matter of terminal based on the next duration of downloading latest data slice for the first time
Amount, and give a network delay of terminal.This is the situation based on the fact that good when the network quality of terminal, under
The time for carrying latest data slice xPiece is just fast, illustrates that its relatively low delay be reasonable；When the net of terminal
In the ropy situation of network, the time of xPiece is downloaded with regard to slow, then it is then also reasonable for giving its relatively high delay.
And since first time downloading data is sliced, along with the time delay that DNS, the operation of link setup and data portion transmit, so the
Once download it is time-consuming largely can reactive terminal network quality quality.
Wherein, there are many modes that network delay is obtained according to downloading duration, such as:
It in one embodiment, can be directly using downloading duration as the network delay of terminal.For example, latest data is sliced
The downloading duration of xPiece is Td, in addition, network delay delay=is Td.
It for another example, in one embodiment, can also be by the several times of downloading duration in order to promote the accuracy of network delay
Number is used as network delay.For example, step " obtaining the network delay of terminal according to downloading duration ", may include:
Obtain current duration multiple；
The network delay of terminal is obtained according to downloading duration and duration multiple.
Wherein, duration multiple can be set in actual demand according to, it is preferable that duration multiple can be between 1 to 2.
The duration multiple can also can be set in real time with default settings in acquisition process.
For example, the downloading duration that network delay delay=b*Td, b are multiple, Td is latest data slice.
In the case where being divided into 1s between the request time of historical data slice, by practical test, latest data slice
Between the downloading duration Td and network delay delay of xPiece be it is positively related, delay is probably between 1-2 times of Td.This
Because the interval of timer is 1s, and the downloading duration of xPieceId is not strictly the integral multiple of 1s, if Td 1s it
Interior completion, then delay is exactly Td, if Td is completed between 1s to 2s, that delay is preferably at most 2 times of Td.
In order to realize low latency, using one times of xPieceId the positively related delay of downloading duration Td can, make
It just will increase delay with more than one times.In addition using the delay of the downloading duration for the xPieceId for being shorter than one times, then having very much can
The Caton of sowing time can be caused, because of the when a length of Td of downloading xPieceId for the first time, then it is reasonable that under subsequent slice
Carrying duration is probably also Td or so, if reached in the delay time without new data, will appear Caton.
In one embodiment, in order to mitigate data playback Caton rate, live-experience is promoted, for first of how many times of selection
Downloading duration Td can be selected as network delay according to user information.That is, step " obtaining current duration multiple ",
It may include: that corresponding duration multiple is obtained according to user information.
Wherein, user information may include the affiliated community information of user (such as TV box sub-group, mobile phone group), user
Use facility information, user gradation information etc..
During the present invention is implemented, the timing for starting to play downloading data can not be limited by above-mentioned steps serial number, for example, can
To be played when having downloaded latest data slice, can also be played at a certain moment after having downloaded latest data slice, tool
Body can be set according to actual needs.For example, played when obtaining network delay based on downloading duration etc..
In one embodiment, when obtaining the downloading duration of latest data slice by historical data number of sections, in order to
It can reduce the Caton of data playback, can also just start when the historical data slice downloading of last time request is completed
It plays.For example, step " data slicer for playing downloading ", may include:
When the historical data slice downloading of last time request is completed, historical data slice and latest data slice are write
Enter to play buffer area；
Play the data slicer in buffer area.
For example, after starting to request latest data slice P0, requesting a newest number every t seconds negative senses with reference to Fig. 1 c
It is sliced P-1, P-2 according to the historical data before slice P0, when latest data slice P0 downloading is completed, starts positive downloading, this
When, slice cdnProbe=xPieceId+1 to be downloaded, and be gradually incremented by；Such as after positive downloading latest data slice P0
Data slicer P1, P2 ... Pn.Wherein, when the last one historical data slice is that P-2 downloading is completed, start latest data
Slice P0, historical data, which are sliced in the caching of P-1, P-2 write-in player, to be started to play.
In one embodiment, in order to reduce live streaming delay, the data display time such as pts (exhibition of video frame can also be reduced
Show the time) allow the data content F.F. for most starting to play, with consume latest data slice download time (i.e. basis delay) with
Time between play time realizes low latency live streaming." data slicer in buffer area is played " for example, step, it can be with
Include:
Reduce current data display time；
The data slicer in buffer area is played according to the data display time after reduction；
When data playback duration reaches preset duration, restore current data play time, and according to the number after recovery
The data slicer in buffer area is played according to the display time.
For example, reducing current pts value, the data slicer in buffer area is played using low pts, when broadcasting certain time length
Afterwards, restore pts value, using the normal pts played data after recovery, can make reducing beginning playing video data in this way
Time, to reduce live streaming delay.
From the foregoing, it will be observed that the embodiment of the present invention is obtained current straight using data playback request is received according to data playback request
The slice mark that latest data is sliced in multicast data stream；It is sliced according to slice mark from server downloading latest data；It obtains most
The downloading duration of new data slice；The network delay of terminal is obtained according to downloading duration, and plays the data slicer of downloading.The party
Case can obtain the network delay of terminal based on the downloading duration of downloading latest data slice for the first time, send test bag without additional
Test network delay can promote the starting speed of live data broadcasting and save bandwidth resources.On the other hand, due to for the first time
The downloading duration of lower latest data slice can reflect the quality of terminal network with true and accurate, prolong and hence it is also possible to promote network
Slow authenticity and accuracy.
In addition, being presently contemplated that the delay of terminal network will lead to data playback Caton, existing general use actively is pulled open
The mode of delay mitigates data playback Caton.For example, most newly generated slice is xPieceId, then directly from xPieceId-k
Start to download, k is both the delay duration actively pulled open, then regularly positive downloading.Typically from current newest slice
Third from the bottom starts to download, and with reference to Fig. 1 d, then, downloads a slice at regular intervals.However, actively pulling open delay
Broadcast mode can there are the following problems:
Active Delay k is the same each client, does not account for the otherness of each client, not dynamic
Ground optimal adjustment is made according to the live network situation of client.
In order to consider that the broadcasting of the user of the whole network is experienced, the value of k must take into account the client of those network relative mistakes, institute
It is unable to very little with what be must be provided with for all clients end, this is just difficult to reach ideal effect in low latency；The choosing of k
It selects excessively high, can not meet low latency；K is arranged too low, then does not look after the client under weak net environment, cause Caton serious.
Because the Active Delay of all clients is all k, it is difficult to pull open the time difference between any two, so when P2P
Also leading client is broadcast live to the relationship of the backward client shared data of live streaming in more difficult establish.
Compared to the existing broadcasting scheme for actively pulling open delay, broadcasting scheme provided in an embodiment of the present invention can use downloading
The free time length downloads historical data slice of latest data slice, to obtain under the downloading duration of latest data slice and broadcasting
Carry data；The program can be that terminal seeks a minimum-time lag, and alleviates broadcast simultaneously according to the real quality of user network
Caton is put, the program has taken into account live streaming time delay and played Caton, makes between low latency and reduction client Caton rate best
Balance.
Further, the terminal of heterogeneous networks quality can also be allowed to pull open different delays, increased in live broadcast system eventually
The possibility mutually shared between end, and then improve the sharing rate of live broadcast system.
Citing, is described in further detail by the method according to described in above-described embodiment below.
In one embodiment, it will carry out the data that the present invention will be described in detail by taking data replay apparatus is integrated in terminal as an example and broadcast
Put method.
As shown in Figure 2 a, the embodiment of the invention provides a kind of live broadcast systems, may include: terminal, slice server, cut
Piece storage server and state server.Wherein, each equipment passes through network connection in system.
Wherein, slice server updates in fact for being sliced to live data streams, and by the mark of latest data slice
Update is applied into state server, slice is saved to slice storage server.
State server is used to save the latest data slice status information of live stream, such as slice mark.Slice storage
Server is used to save the data slicer of live stream, and distributes data slicer to terminal.The slice storage server can be CDN
Server in (Content Delivery Network, content distributing network).
For example, when slice server is sliced live stream, coming in strict accordance with one second one slice with reference to Fig. 2 a and Fig. 2 b
Generation generates a slice per new, and will pass through signaling immediately will be in the piece id synchronous regime server of newest slice
Inside real-time stream mode.And it will
The filename of newly-increased slice is to be incremented by name according to piece id.Here, piece id can be mapped to slice text
The URI namely terminal of part can be obtained by the URL for requesting the piece file after knowing piece id.
Once generating new slice, that newest slice xPieceId is then replaced by this new slice just generated,
It can be expressed as:
xPieceIdnew=xPieceIdold+1
Server-side generates slice, is per second incessantly all to generate.Terminal request slice, as long as the plan with server-side
It is slightly aligned, i.e., went to request next slice every one second.The present invention is concerned with when terminal just starts live streaming, is not
It just went to request next slice every one second, but (is downloaded before first xPieceId request has not responded thoroughly also
Before completion), last slice was requested every one second, after this slice return of xPieceId, could go to request every one second
Next slice.This process is referred to as " megative priming ", can refer to Fig. 1 c.
As shown in Figure 2 c, data playing method is introduced based on live broadcast system shown in Fig. 2 a, the data playing method
Detailed process can be such that
201, terminal receives data playback request.
For example, a START button is arranged at live streaming interface, triggering generation data playback is asked when the button when the user clicks
It asks, at this point, the data playback request can be received.
For another example, user opens live streaming application, when live streaming homepage clicks the live streaming title of some recommendation, can trigger life
At data playback request.
Wherein, data playback request can indicate to need the live data streams that play, for example, the data playback request can be with
Carry the mark for needing the live data streams played.
202, terminal sends mark acquisition request to state server according to data playback request.
Wherein, mark acquisition request can carry the mark for needing the live data streams played.
203, state server returns to the slice of the latest data slice of respective live data flow according to mark acquisition request
It identifies to terminal.
For example, state server searches cutting for respective live data flow according to the mark of live data streams in being locally stored
Piece mark, then, returns to terminal.
204, terminal is cut according to the latest data that slice mark tangential section storage server requests download the live data streams
Piece.
For example, the data acquisition request for carrying slice mark can be sent with tangential section storage server, it is sliced storage service
Device can return to the slice according to the data acquisition request and identify corresponding latest data slice.
Wherein, slice mark can be mapped to the address information of data slicer, such as URL, at this point it is possible to according to the ground of slice
Location information request obtains latest data slice.
For example, identifying the address information for obtaining latest data slice according to slice；According to address information under server
Carry latest data slice.
For example, xPieceId can be mapped to the URL of latest data slice, then, requested according to the URL from server
Download latest data slice
205, the historical data before terminal every preset time period tangential section storage server requests latest data slice
Slice.
Wherein, historical data slice for slice server generate latest data slice before cutting generation data cut
Piece, for example, a upper data slicer for latest data slice, upper data slicer of latest data slice etc..
Wherein, preset time period can be set according to actual needs, for example can be 1s, 2s etc..In one embodiment,
Preset time period can based on the slice cycle set of data slicer, for example, every 1s to live data streams be sliced when, then,
The preset time period can be 1s etc..
206, when terminal detects that latest data slice downloading is completed, stop request historical data slice, and obtain and go through
The number of requests of history data slicer.
For example, being sliced every t seconds request historical datas, during downloading latest data slice xPieceId when most
When new data is sliced xPieceId downloading completion, m historical data slice, the P-m such as P-1, P-2 ... are had requested that.At this point,
Number of requests is m.
207, terminal obtains the downloading duration of latest data slice according to number of requests and preset time period, and according under this
Carry the network delay that duration obtains terminal.
When latest data, which is sliced downloading, to be completed, if the number of requests of historical data slice is m, at this point, latest data
The downloading duration Td=m*t of slice, wherein m is positive integer, and t can be set according to actual needs, such as 1s, 2s etc..
Wherein, there are many modes that network delay is obtained according to downloading duration, for example, in one embodiment, it can be direct
Using downloading duration as the network delay of terminal.
For another example, the network delay of terminal can be obtained according to downloading duration and duration multiple.Wherein, duration multiple can be with
To be set according to actual demand, it is preferable that duration multiple can be between 1 to 2.
For example, the downloading duration that network delay delay=b*Td, b are multiple, Td is latest data slice.
208, when the historical data slice downloading of last time request is completed, historical data slice and latest data are cut
Piece write-in plays buffer area, and plays the data slicer in buffer area.
Wherein, the timing between step 208 and step 207 can there are many, do not limited by serial number, for example, can be same
Shi Zhihang can also be executed successively.For example, during obtaining network delay, if the history number of last time request
When being completed according to slice downloading, played then a data slicer write-in can be added to play in buffer area.
For example, after starting to request latest data slice P0, requesting a newest number every t seconds negative senses with reference to Fig. 1 c
It is sliced P-1, P-2 according to the historical data before slice P0, when latest data slice P0 downloading is completed, starts positive downloading, this
When, slice cdnProbe=xPieceId+1 to be downloaded, and be gradually incremented by；Such as after positive downloading latest data slice P0
Data slicer P1, P2 ... Pn.Wherein, when the last one historical data slice is that P-2 downloading is completed, start latest data
Slice P0, historical data, which are sliced in the caching of P-1, P-2 write-in player, to be started to play.
From the foregoing, it will be observed that the embodiment of the present invention can using for the first time downloading latest data slice several multiples of downloading duration as
The network delay of terminal sends the delay of test bag test network without additional, can promote the starting speed of live data broadcasting
And save bandwidth resources.On the other hand, since the downloading duration for descending latest data to be sliced for the first time can be reflected eventually with true and accurate
The quality for holding network, and hence it is also possible to promote the authenticity and accuracy of network delay.
The embodiment of the present invention can also be sliced using the free time length downloads historical data of downloading latest data slice, thus
Obtain the downloading duration of latest data slice；The program can according to the real quality of user network be terminal seek one it is minimum
Time delay, and broadcasting Caton is alleviated simultaneously, therefore, the program has taken into account live streaming time delay and has played Caton, in low latency and reduction
Best balance is made between client Caton rate, and is suitable for low latency direct-broadcasting P 2 P scene.
Finally, the embodiment of the present invention describes a kind of solution for taking into account time delay and Caton, client is made full use of not
Same network quality, it is established that different delay distributions meets the hard requirement of global low latency, also helps P2P points
Enjoy the raising of rate.Relative to traditional solution, under identical Caton rate, the scheme that the present invention is implemented can provide lower
Overall delay.
In order to better implement above method, the embodiment of the present invention also provides a kind of data replay apparatus, the data playback
Device can be adapted for the terminal in live broadcast system, as shown in Figure 3a, the data replay apparatus may include: receiving unit 301,
Mark acquiring unit 302, slice download unit 303, duration acquiring unit 304 and broadcast unit 305, as follows:
Receiving unit 301, for receiving data playing request；
Mark acquiring unit 302, for obtaining latest data in current live data flow according to the data playback request
The slice of slice identifies；
It is sliced download unit 303, is sliced for downloading the latest data from server according to slice mark；
Duration acquiring unit 304, for obtaining the downloading duration of the latest data slice；
Broadcast unit 305 for obtaining the network delay of the terminal according to the downloading duration, and plays the number of downloading
According to slice.
In one embodiment, with reference to Fig. 3 b, wherein duration acquiring unit 304 may include:
Slice request subelement 3041 requests the latest data slice to the server for every preset time period
Historical data slice before；
Quantity obtains subelement 3042, for obtaining history number when detecting that the latest data slice downloading is completed
According to the number of requests of slice；
Duration obtains subelement 3043, for obtaining the newest number according to the number of requests and the preset time period
According to the downloading duration of slice.
In one embodiment, with reference to Fig. 3 c, wherein broadcast unit 305 may include:
Delay obtains subelement 3051, for obtaining the network delay of the terminal according to the downloading duration；
Subelement 3052 is written in data, will be described when the historical data slice downloading for requesting when last time is completed
Historical data slice and latest data slice write-in play buffer area；
First plays subelement 3053, for playing the data slicer in the broadcasting buffer area.
In one embodiment, slice download unit 303 can be specifically used for:
The address information of the latest data slice is obtained according to the slice mark；
The latest data slice is downloaded to from the server according to the address information.
In one embodiment, with reference to Fig. 3 d, broadcast unit 305 may include:
Delay obtains subelement 3051, for obtaining the network delay of the terminal according to the downloading duration；
Second plays subelement 3054, for reducing current data display time；When being shown according to the data after reduction
Between play it is described broadcasting buffer area in data slicer；When data playback duration reaches preset duration, restore current data
Play time, and the data slicer in the broadcasting buffer area is played according to the data display time after recovery.
Wherein, delay obtains subelement 3051 and can be specifically used for:
Obtain current duration multiple；
The network delay of the terminal is obtained according to the downloading duration and duration multiple.
The description that the step of execution of the above each unit, reference can be made to the above method embodiment.
When it is implemented, above each unit can be used as independent entity to realize, any combination can also be carried out, is made
It is realized for same or several entities, the specific implementation of above each unit can be found in the embodiment of the method for front, herein not
It repeats again.
The data replay apparatus specifically can integrate in the terminal, for example, can be integrated in terminal in the form of client
In, which can be the equipment such as mobile phone, tablet computer.
From the foregoing, it will be observed that data replay apparatus of the embodiment of the present invention receives data playback request by receiving unit 301, by marking
Know acquiring unit 302 to be identified according to the slice that the data playback request obtains latest data slice in current live data flow；
It is identified according to the slice from server by slice download unit 303 and downloads the latest data slice；By duration acquiring unit
304 obtain the downloading duration of the latest data slice；The terminal is obtained according to the downloading duration by broadcast unit 305
Network delay, and play the data slicer of downloading.The program can based on for the first time downloading latest data slice downloading duration come
The network delay for obtaining terminal sends the delay of test bag test network without additional, can promote the starting of live data broadcasting
Speed and saving bandwidth resources.
With reference to Fig. 4, it may include one or more than one processing core that the embodiment of the invention provides a kind of terminals 400
The processor 401 of the heart, the memory 402 of one or more computer readable storage mediums, radio frequency (Radio
Frequency, RF) components such as circuit 403, power supply 404, input unit 405 and display unit 406.Those skilled in the art
It is appreciated that the restriction of terminal structure not structure paired terminal shown in Fig. 4, may include than illustrating more or fewer portions
Part perhaps combines certain components or different component layouts.Wherein:
Processor 401 is the control centre of the terminal, using the various pieces of various interfaces and the entire terminal of connection,
By running or execute the software program and/or module that are stored in memory 402, and calls and be stored in memory 402
Data, execute terminal various functions and processing data, thus to terminal carry out integral monitoring.Optionally, processor 401 can
Including one or more processing cores；Preferably, processor 401 can integrate application processor and modem processor, wherein
The main processing operation system of application processor, user interface and application program etc., modem processor mainly handles channel radio
Letter.It is understood that above-mentioned modem processor can not also be integrated into processor 401.
Memory 402 can be used for storing software program and module, and processor 401 is stored in memory 402 by operation
Software program and module, thereby executing various function application and data processing.
During RF circuit 403 can be used for receiving and sending messages, signal is sended and received, and particularly, the downlink of base station is believed
After breath receives, one or the processing of more than one processor 401 are transferred to；In addition, the data for being related to uplink are sent to base station.
Terminal further includes the power supply 404 (such as battery) powered to all parts, it is preferred that power supply can pass through power supply pipe
Reason system and processor 401 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.Power supply 404 can also include one or more direct current or AC power source, recharging system, power failure inspection
The random components such as slowdown monitoring circuit, power adapter or inverter, power supply status indicator.
The terminal may also include input unit 405, which can be used for receiving the number or character letter of input
Breath, and generation keyboard related with user setting and function control, mouse, operating stick, optics or trackball signal are defeated
Enter.
The terminal may also include display unit 406, which can be used for showing information input by user or mention
The information of user and the various graphical user interface of terminal are supplied, these graphical user interface can be by figure, text, figure
Mark, video and any combination thereof are constituted.Display unit 408 may include display panel, optionally, can use liquid crystal display
(LCD, Liquid Crystal Display), Organic Light Emitting Diode (OLED, Organic Light-Emitting
) etc. Diode forms configure display panel.
Specifically in the present embodiment, the processor 401 in terminal can be according to following instruction, will be one or more
The corresponding executable file of the process of application program is loaded into memory 402, and is run by processor 401 and be stored in storage
Application program in device 402, thus realize various functions, it is as follows:
Receive data playback request；
The slice mark of latest data slice in current live data flow is obtained according to the data playback request；
The latest data slice is downloaded from server according to slice mark；
Obtain the downloading duration of the latest data slice；
The network delay of the terminal is obtained according to the downloading duration, and plays the data slicer of downloading.
In one embodiment, when obtaining the downloading duration of the latest data slice, processor 401 can be executed specifically
Following steps:
Historical data before every preset time period requests the latest data to be sliced to the server is sliced；
When detecting that the latest data slice downloading is completed, the number of requests of historical data slice is obtained；
The downloading duration of the latest data slice is obtained according to the number of requests and the preset time period.
In one embodiment, when playing the data slicer of downloading, processor 401 can specifically execute following steps:
When the historical data slice downloading of last time request is completed, by historical data slice and the newest number
It is written according to slice and plays buffer area；
Play the data slicer in the broadcasting buffer area.
In one embodiment, when downloading latest data slice from server according to slice mark, processor 401
Following steps can specifically be executed:
The address information of the latest data slice is obtained according to the slice mark；
The latest data slice is downloaded to from the server according to the address information.
In one embodiment, when playing the data slicer played in buffer area, processor 401 can be executed specifically
Following steps:
Reduce current data display time；
The data slicer in the broadcasting buffer area is played according to the data display time after reduction；
When data playback duration reaches preset duration, restore current data play time, and according to the number after recovery
The data slicer in the broadcasting buffer area is played according to the display time.
The embodiment of the invention provides a kind of terminal, which is broadcast using data playback request is received according to the data
Put the slice mark that latest data is sliced in request current live data flow；It is downloaded according to slice mark from server
The latest data slice；Obtain the downloading duration of the latest data slice；The terminal is obtained according to the downloading duration
Network delay, and play the data slicer of downloading.The program can be based on the downloading duration of downloading latest data slice for the first time
The network delay of terminal is obtained, the delay of test bag test network is sent without additional, opening for live data broadcasting can be promoted
Dynamic speed and saving bandwidth resources.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
Be provided for the embodiments of the invention a kind of data playing method above, apparatus and system is described in detail,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；Meanwhile for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (11)
1. a kind of data playing method characterized by comprising
Receive data playback request；
The slice mark of latest data slice in current live data flow is obtained according to the data playback request；
The latest data slice is downloaded from server according to slice mark；
Obtain the downloading duration of the latest data slice；
The network delay of the terminal is obtained according to the downloading duration, and plays the data slicer of downloading.
2. data playing method as described in claim 1, which is characterized in that when obtaining the downloading of the latest data slice
It is long, comprising:
Historical data before every preset time period requests the latest data to be sliced to the server is sliced；
When detecting that the latest data slice downloading is completed, the number of requests of historical data slice is obtained；
The downloading duration of the latest data slice is obtained according to the number of requests and the preset time period.
3. data playing method as claimed in claim 2, which is characterized in that play the data slicer of downloading, comprising:
When the historical data slice downloading of last time request is completed, historical data slice and the latest data are cut
Piece write-in plays buffer area；
Play the data slicer in the broadcasting buffer area.
4. data playing method as claimed in claim 2, which is characterized in that download institute from server according to slice mark
State latest data slice, comprising:
The address information of the latest data slice is obtained according to the slice mark；
The latest data slice is downloaded to from the server according to the address information.
5. data playing method as described in claim 1, which is characterized in that play the data played in buffer area and cut
Piece, comprising:
Reduce current data display time；
The data slicer in the broadcasting buffer area is played according to the data display time after reduction；
When data playback duration reaches preset duration, restore current data play time, and aobvious according to the data after recovery
Show that the time plays the data slicer in the broadcasting buffer area.
6. data playing method as described in any one in claim 1-5, which is characterized in that obtain institute according to the downloading duration
State the network delay of terminal, comprising:
Obtain current duration multiple；
The network delay of the terminal is obtained according to the downloading duration and duration multiple.
7. a kind of data replay apparatus characterized by comprising
Receiving unit, for receiving data playing request；
Mark acquiring unit is cut for what is be sliced according to latest data in data playback request acquisition current live data flow
Piece mark；
It is sliced download unit, is sliced for downloading the latest data from server according to slice mark；
Duration acquiring unit, for obtaining the downloading duration of the latest data slice；
Broadcast unit for obtaining the network delay of the terminal according to the downloading duration, and plays the data slicer of downloading.
8. data replay apparatus as claimed in claim 7, which is characterized in that the duration acquiring unit, comprising:
Slice request subelement, going through before requesting the latest data to be sliced to the server for every preset time period
History data slicer；
Quantity obtains subelement, for obtaining historical data slice when detecting that the latest data slice downloading is completed
Number of requests；
Duration obtains subelement, for obtaining the latest data slice according to the number of requests and the preset time period
Downloading duration.
9. data replay apparatus as claimed in claim 8, which is characterized in that the broadcast unit, comprising:
Delay obtains subelement, for obtaining the network delay of the terminal according to the downloading duration；
Subelement is written in data, when the historical data slice downloading for requesting when last time is completed, by the historical data
Slice and latest data slice write-in play buffer area；
First plays subelement, for playing the data slicer in the broadcasting buffer area.
10. data replay apparatus as claimed in claim 7, which is characterized in that the broadcast unit, comprising:
Delay obtains subelement, for obtaining the network delay of the terminal according to the downloading duration；
Second plays subelement, for reducing current data display time；Institute is played according to the data display time after reduction
State the data slicer played in buffer area；When data playback duration reaches preset duration, restore current data play time,
And the data slicer in the broadcasting buffer area is played according to the data display time after recovery.
11. a kind of storage medium, which is characterized in that the storage medium is stored with instruction, when described instruction is executed by processor
It realizes such as the step of any one of claim 1-6 the method.
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| CN112788360A (en) * | 2020-12-30 | 2021-05-11 | 北京达佳互联信息技术有限公司 | Live broadcast method, live broadcast device and computer program product |
| CN113347137A (en) * | 2020-03-02 | 2021-09-03 | 广州虎牙科技有限公司 | Method and device for patching data stream slices, computer equipment and storage medium |
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