CN108513158A - A kind of playback method and device of online question-answering content - Google Patents
A kind of playback method and device of online question-answering content Download PDFInfo
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- CN108513158A CN108513158A CN201710107917.5A CN201710107917A CN108513158A CN 108513158 A CN108513158 A CN 108513158A CN 201710107917 A CN201710107917 A CN 201710107917A CN 108513158 A CN108513158 A CN 108513158A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 241001269238 Data Species 0.000 claims description 20
- 238000001514 detection method Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000012550 audit Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—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
- H04N21/47—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
- H04N21/47214—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 content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4858—End-user interface for client configuration for modifying screen layout parameters, e.g. fonts, size of the windows
-
- 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
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Finance (AREA)
- Strategic Management (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The embodiment of the invention discloses a kind of playback methods and device of online question-answering content.The method includes：Acquisition is answerred questions file, wherein the file of answering questions includes VoP and handwriting data packet；It is adaptively adjusted the display resolution that the handwriting data packet corresponds to person's handwriting according to the resolution ratio of playback terminal；While carrying out speech play to the VoP, the drafting and display of person's handwriting are carried out according to the display resolution of the handwriting data packet and the person's handwriting.Technical solution through the invention automatically adjusts display resolution when can play online question-answering content on different devices, improves the stability of result of broadcast.
Description
Technical field
The present embodiments relate to the information processing technology more particularly to a kind of playback methods and dress of online question-answering content
It sets.
Background technology
With the continuous development of network, the teaching method between teacher and student has developed under line on line, online to teach
It is bred as a kind of technology trends, and existing online question-answering equipment mainly uses voice mutually to be tied with notes (writing on the blackboard) at present
The mode of conjunction provides real-time online question-answering service for academics and students, i.e. teacher is explained by voice and student's real time phone call,
And special answer questions originally for passing through teacher end is that student carries out writing on the blackboard writing with digital pen.
In addition, needing to carry out live reduction to academics and students' process of answering questions in online question-answering business, need to this mistake
Cheng Jinhang is recorded, and on the one hand records the playback for carrying out knowledge point and reviewing knowledge already acquired summary so that later stage student answers questions to history；Another party
Face is for internal check, i.e., teacher is currently answerred questions in audit or whether student has carried out violation operation, improperly speech or teacher not
The explanation etc. of motive, or audit and the current voice call quality of automatic or manual detection, person's handwriting transmission it is whether complete and
It is qualified.
Wherein, existing broadcasting scheme is：The voice document prerecorded and uploaded that will be stored in cloud storage service device
With the terminals such as person's handwriting file download to mobile phone or computer, and it is read out and broadcasts using player special on mobile phone or computer
It puts.Since there are the difference of the platforms such as IOS and Android in mobile terminal equipment aspect, and it is based on Android platform, more there are various hands
The thousands of money mobile phone products of machine manufacturer, the device configuration and performance parameter of each product are all not quite similar, so can exist because setting
The problem that standby display resolution is inconsistent and causes result of broadcast unstable.
Invention content
The embodiment of the present invention provides a kind of playback method and device of online question-answering content, is broadcast on different devices with realizing
Display resolution is automatically adjusted when putting online question-answering content, improves the stability of result of broadcast.
In a first aspect, an embodiment of the present invention provides a kind of playback methods of online question-answering content, including：
Acquisition is answerred questions file, wherein the file of answering questions includes VoP and handwriting data packet；
It is adaptively adjusted the display resolution that the handwriting data packet corresponds to person's handwriting according to the resolution ratio of playback terminal；
While carrying out speech play to the VoP, according to the aobvious of the handwriting data packet and the person's handwriting
Show that resolution ratio carries out the drafting and display of person's handwriting.
Further, after file is answerred questions in acquisition, further include：
Whether legal detect the VoP；
If it is determined that the VoP is legal, then the VoP is loaded.
Further, after loading the VoP, further include：
Whether legal detect the handwriting data packet；
If it is determined that the handwriting data includes method, then stabbed according to the relative time in the handwriting data packet, it will be described
The time unifying of handwriting data packet and the VoP, wherein the relative time stamp is adopting for the handwriting data packet
Collect time difference of the time point relative to the acquisition time of first VoP；
If it is determined that the handwriting data packet is illegal, then the VoP and the handwriting data packet are abandoned.
Further, the resolution ratio according to playback terminal is adaptively adjusted the handwriting data packet and corresponds to person's handwriting
Display resolution, including：
Obtain the device pixel ratio of the playback terminal；
The display point that the handwriting data packet corresponds to person's handwriting is adjusted according to the device pixel ratio and setting zoom factor
Resolution.
Further, described that the handwriting data packet correspondence is adjusted according to the device pixel ratio and setting zoom factor
The display resolution of person's handwriting, including：
According to formula：F (x, y)=e (x, y) × r (x, y) × scale adjusts the handwriting data packet and corresponds to the aobvious of person's handwriting
Show resolution ratio；
Wherein, f (x, y) is the coordinate of each pixel under the display resolution of handwriting information after adjusting, and e (x, y) is to adjust
The coordinate of each pixel under the display resolution of the whole preceding handwriting information, r (x, y) are setting zoom factor, and scale is institute
State the device pixel ratio of playback terminal.
Further, it is described according to the display resolution of the handwriting data packet and the person's handwriting carry out person's handwriting drafting and
It has been shown that, including：
According to the corresponding page number dynamic creation of current handwriting data in the handwriting data packet and shows target pages；
The handwriting data of preset quantity is drawn and shown on the target pages according to the display resolution of the person's handwriting
Corresponding person's handwriting.
Further, the drafting of person's handwriting is being carried out according to the display resolution of the handwriting data packet and the person's handwriting and is being shown
After showing, further include：
When getting playing progress bar adjust instruction forward, according to the adjust instruction forward by currently playing progress to
Before be adjusted to objects ahead position；
If corresponding to the page shown before the page number and adjustment corresponding to the page shown under the objects ahead position
Page number is identical, then removes all person's handwritings in the page number, and draw and show initial position to the front under the page number
The corresponding person's handwriting of all handwriting datas between target location；
If the page institute shown before the page number and the adjustment corresponding to the page shown under the objects ahead position is right
The page number answered is different, then removes all person's handwritings in the page number corresponding to the page shown before the adjustment, and draws and show
Initial position owns between the objects ahead position under the page number corresponding to the page shown under the objects ahead position
The corresponding person's handwriting of handwriting data.
Further, the drafting of person's handwriting is being carried out according to the display resolution of the handwriting data packet and the person's handwriting and is being shown
After showing, further include：
When getting playing progress bar adjust instruction backward, according to the adjust instruction backward by currently playing progress to
After be adjusted to rear area target position；
If corresponding to the page shown before the page number and adjustment corresponding to the page shown under the rear area target position
Page number is identical, then draws and show the preceding play position of adjustment to the corresponding pen of all handwriting datas between the rear area target position
Mark；
If the page institute shown before the page number and the adjustment corresponding to the page shown under the rear area target position is right
The page number answered is different, then removes all person's handwritings in the page number corresponding to the page shown before the adjustment, and draws and show
Initial position owns between the rear area target position under the page number corresponding to the page shown under the rear area target position
The corresponding person's handwriting of handwriting data.
Second aspect, the embodiment of the present invention additionally provide a kind of playing device of online question-answering content, which includes：
File acquisition module, for obtaining file of answering questions, wherein the file of answering questions includes VoP and person's handwriting number
According to packet；
Resolution adjustment module is corresponded to for being adaptively adjusted the handwriting data packet according to the resolution ratio of playback terminal
The display resolution of person's handwriting；
Display module is played, is used for while carrying out speech play to the VoP, according to the person's handwriting number
The drafting and display of person's handwriting are carried out according to the display resolution of packet and the person's handwriting.
Further, further include：
Whether legal first detection module detects the VoP after answering questions file in acquisition；
Carry voice module is used to if it is determined that the VoP is legal, then load the VoP.
Further, further include：
Second detection module, for after loading the VoP, whether legal detecting the handwriting data packet；
Time unifying module is used for if it is determined that the handwriting data includes method, then according in the handwriting data packet
Relative time stabs, by the time unifying of the handwriting data packet and the VoP, wherein the relative time stamp is institute
State the time difference of acquisition time of handwriting data packet relative to the acquisition time of first VoP；
Data discard module, is used for if it is determined that the handwriting data packet is illegal, then abandon the VoP and
The handwriting data packet.
Further, the resolution adjustment module includes：
Pixel ratio acquisition submodule, the device pixel ratio for obtaining the playback terminal；
Resolution ratio determination sub-module, for adjusting the person's handwriting number according to the device pixel ratio and setting zoom factor
According to the display resolution of the corresponding person's handwriting of packet.
Further, the resolution ratio determination sub-module is specifically used for：
According to formula：F (x, y)=e (x, y) × r (x, y) × scale adjusts the handwriting data packet and corresponds to the aobvious of person's handwriting
Show resolution ratio；
Wherein, f (x, y) is the coordinate of each pixel under the display resolution of handwriting information after adjusting, and e (x, y) is to adjust
The coordinate of each pixel under the display resolution of the whole preceding handwriting information, r (x, y) are setting zoom factor, and scale is institute
State the device pixel ratio of playback terminal.
Further, the broadcasting display module is specifically used for：
According to the corresponding page number dynamic creation of current handwriting data in the handwriting data packet and shows target pages；
The handwriting data of preset quantity is drawn and shown on the target pages according to the display resolution of the person's handwriting
Corresponding person's handwriting.
Further, further include：
Progress adjusts forward module, for carrying out pen according to the display resolution of the handwriting data packet and the person's handwriting
After the drafting and display of mark, when getting playing progress bar adjust instruction forward, it will be worked as according to the adjust instruction forward
Preceding playing progress rate is adjusted to forward objects ahead position；
First drawn forwards module, if the page number corresponding to the page for being shown under the objects ahead position and adjustment
Page number corresponding to the page of preceding display is identical, then removes all person's handwritings in the page number, and draw and show the page number
Lower initial position is to the corresponding person's handwriting of all handwriting datas between the objects ahead position；
Second drawn forwards module, if page number corresponding to the page for being shown under the objects ahead position with it is described
The page number corresponding to the page shown before adjustment is different, then removes the institute in the page number corresponding to the page shown before the adjustment
There is a person's handwriting, and draws and show under the page number corresponding to the page shown under the objects ahead position initial position to before described
The corresponding person's handwriting of all handwriting datas between square mesh cursor position.
Further, further include：
Progress adjusts module backward, for carrying out pen according to the display resolution of the handwriting data packet and the person's handwriting
After the drafting and display of mark, when getting playing progress bar adjust instruction backward, it will be worked as according to the adjust instruction backward
Preceding playing progress rate is adjusted to rear area target position backward；
First drafting module backward, if the page number corresponding to the page for being shown under the rear area target position and adjustment
Page number corresponding to the page of preceding display is identical, then play position is between the rear area target position before drawing and showing adjustment
The corresponding person's handwriting of all handwriting datas；
Second drafting module backward, if page number corresponding to the page for being shown under the rear area target position with it is described
The page number corresponding to the page shown before adjustment is different, then removes the institute in the page number corresponding to the page shown before the adjustment
There is a person's handwriting, and draws and show under the page number corresponding to the page shown under the rear area target position initial position to after described
The corresponding person's handwriting of all handwriting datas between square mesh cursor position.
The embodiment of the present invention is answerred questions file by obtaining, and is adaptively adjusted according to the resolution ratio of terminal and to be answerred questions file
Handwriting data packet corresponds to the display resolution of person's handwriting, while carrying out speech play, according to the aobvious of handwriting data packet and person's handwriting
The advantages of showing that resolution ratio carries out the drafting and display of person's handwriting, the display resolution of automatic adjusument person's handwriting is utilized solves existing
Have the display resolution in technology because of distinct device it is inconsistent caused by the unstable problem of result of broadcast, realize in difference
Display resolution is automatically adjusted when playing online question-answering content in equipment, improves the stability of result of broadcast.
Description of the drawings
Fig. 1 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of the playback method of online question-answering content provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention three provides；
Fig. 4 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention four provides；
Fig. 5 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention five provides；
Fig. 6 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention six provides；
Fig. 7 is a kind of structural schematic diagram of the playing device for online question-answering content that the embodiment of the present invention seven provides；
Fig. 8 is that the mobile phone playback terminal that the embodiment of the present invention five provides shows picture view.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention one provides.The party
Method is applicable to the case where being played out to online question-answering content, and this method can be held by the playing device of online question-answering content
Row, which can be made of hardware and/or software, and can generally be integrated in player and terminal with playing function.
It specifically includes as follows：
S110, file of answering questions is obtained, wherein file of answering questions includes VoP and handwriting data packet.
Optionally, the file of answering questions of acquisition can be during online question-answering teacher side according to the online question-answering data of acquisition
VoP is stored in the file of answering questions of phonetic matrix by the type of packet, and handwriting data packet is stored in person's handwriting format
It answers questions in file, both files of answering questions obtained from.Optionally, if file of answering questions is uploaded to cloud storage service after being formed
Device is stored, and is formed by file of answering questions with an online question-answering process and is corresponded to an order number of answering questions, and is answered in acquisition
Doubt file when, can according to answer questions order number and answer questions corresponding to file URL (Uniform Resource Locator, system
One Resource Locator) address, obtain file of answering questions accordingly on cloud storage service device.
S120, the display resolution that handwriting data packet corresponds to person's handwriting is adaptively adjusted according to the resolution ratio of playback terminal.
Since in the content of different playback terminals broadcasting handwriting data packet, some resolution ratio of itself of identifying the handwriting can cause shadow
It rings, therefore, optionally, suitable ratio is calculated using the resolution ratio of playback terminal, tune is suitably scaled further according to the ratio
Lump-sum mark data packet corresponds to the display resolution of person's handwriting, suitable big to make the display resolution of person's handwriting adaptively zoom to
It is small, the display resolution of person's handwriting is automatically adjusted when playing online question-answering content on different devices to realize, improves result of broadcast
Stability.
Preferably, the display resolution of person's handwriting can be adaptively adjusted according to playback terminal display window width.For example,
If playback terminal display window width is 0~240 pixel, handwriting data packet is corresponded to the display resolution of person's handwriting automatically
It is adjusted to 180 × 240 pixels (the pixel number for corresponding to wide pixel number × high)；If playback terminal display window
Mouth width degree is 240~360 pixels, then the display resolution that handwriting data packet is corresponded to person's handwriting automatically is adjusted to 240 × 360
A pixel；If playback terminal display window width is 360~480 pixels, handwriting data packet is corresponded into person's handwriting automatically
Display resolution be adjusted to 360 × 480 pixels；If playback terminal display window width is 480~640 pixels,
The display resolution that handwriting data packet is then corresponded to person's handwriting automatically is adjusted to 480 × 640 pixels；If playback terminal display window
Mouth width degree is 640 and with last pixel, then the display resolution that handwriting data packet is corresponded to person's handwriting automatically is adjusted to 640 ×
854 pixels；If playback terminal display window height is 854 pixels or more, automatically by handwriting data packet pair
The display resolution of person's handwriting is answered to be adjusted to identical as the resolution ratio of playback terminal display window.
S130, to VoP carry out speech play while, according to the display of handwriting data packet and person's handwriting differentiate
Rate carries out the drafting and display of person's handwriting.
Preferably, may include the acquisition time of current handwriting data packet in handwriting data packet relative to first voice
The relative time of the acquisition time of data packet stabs, so that playback terminal is stabbed according to relative time completes VoP and person's handwriting
The synchronization of data packet.Illustratively, while carrying out speech play to VoP, handwriting data packet can be right according to its institute
The relative time stamp answered finds corresponding drafting and Presentation Time Stamp, thus when the timestamp corresponding time arrives, according to
The display resolution of the person's handwriting obtained after handwriting data packet and adaptive adjustment, carried out on the playback terminal person's handwriting drafting and
Display.
Optionally, html5 can be used and carry out speech play and person's handwriting drafting, wherein person's handwriting (.pen), which can be used, to be based on
Canvas labels are drawn, and voice (.mp3) can be used audio labels and play out.
The technical solution of the present embodiment by obtaining file of answering questions, and is adaptively adjusted according to the resolution ratio of terminal and answers
Doubt handwriting data packet in file and correspond to the display resolution of person's handwriting, while carrying out speech play, according to handwriting data packet with
The display resolution of person's handwriting carries out the drafting and display of person's handwriting, the advantages of display resolution of automatic adjusument person's handwriting is utilized,
It solves the problems, such as that result of broadcast is unstable caused by display resolution in the prior art because of distinct device is inconsistent, realizes
Display resolution is automatically adjusted when playing online question-answering content on different devices, improves the stability of result of broadcast.
Embodiment two
Fig. 2 is a kind of flow diagram of the playback method of online question-answering content provided by Embodiment 2 of the present invention.This reality
It applies example to optimize based on above-described embodiment, provides the playback method of preferred online question-answering content, specifically, obtaining
File of answering questions is taken to advanced optimize later to further include：Whether legal detect VoP；If it is determined that voice data includes
Method then loads VoP.
S210, file of answering questions is obtained, wherein file of answering questions includes VoP and handwriting data packet.
Whether S220, detection VoP are legal, if so, executing S230；If it is not, then executing S240.
Optionally, whether VoP is legal may include for detection：Whether detection VoP is that target is answerred questions and ordered
VoP under odd numbers；Whether detection VoP is the audio format set, i.e. mp3 formats；Detect voice data
Data in packet are no complete etc..The whether legal purpose of detection VoP is, it is ensured that the VoP of acquisition can
Correct load and complete broadcasting, avoid obtaining wrong data, improve the safety and reliability of data acquisition.
S230, load VoP.
Optionally, if the VoP in detecting the file of answering questions of acquisition is legal, according to corresponding audio format
The normal load VoP.
S240, display load failure.
Optionally, it if the VoP in detecting the file of answering questions of acquisition is illegal, is shown on playback terminal
The miscue information for loading failure, to notify user voice data load failure.
S250, the display resolution that handwriting data packet corresponds to person's handwriting is adaptively adjusted according to the resolution ratio of playback terminal.
S260, to VoP carry out speech play while, according to the display of handwriting data packet and person's handwriting differentiate
Rate carries out the drafting and display of person's handwriting.
The technical solution of the present embodiment is just added by detecting the legitimacy of VoP in file of answering questions when legal
The VoP is carried, the effect for the safety and reliability for improving data acquisition is realized.
Embodiment three
Fig. 3 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention three provides.This reality
It applies example to optimize based on the various embodiments described above, provides the playback method of preferred online question-answering content, specifically,
The VoP is loaded to advanced optimize to further include later：Whether legal detect handwriting data packet；If it is determined that person's handwriting
Data packet is legal, then is stabbed according to the relative time in handwriting data packet, by the time unifying of handwriting data packet and VoP,
Wherein, relative time stamp be handwriting data packet acquisition time relative to first VoP acquisition time when
Between difference；If it is determined that handwriting data packet is illegal, then VoP and handwriting data packet are abandoned.
S310, file of answering questions is obtained, wherein file of answering questions includes VoP and handwriting data packet.
Whether S320, detection VoP are legal, if so, executing S230；If it is not, then executing S240.
S330, load VoP.
S340, display load failure.
Whether S350, detection handwriting data packet are legal, if so, executing S360；If it is not, then executing S370.
Optionally, whether handwriting data packet is legal may include for detection：Whether detection handwriting data packet is that target is answerred questions and ordered
Handwriting data packet under odd numbers；Whether detection handwriting data packet is the person's handwriting format set, i.e. pen formats；Detect handwriting data
Whether data in packet are complete etc..The whether legal purpose of detection handwriting data packet is, it is ensured that the handwriting data packet energy of acquisition
Enough correct loads are played with complete, are avoided obtaining wrong data, are improved the safety and reliability of data acquisition.
S360, it is stabbed according to the relative time in handwriting data packet, by the time unifying of handwriting data packet and VoP.
Wherein, when relative time stamp is acquisition of the acquisition time of handwriting data packet relative to first VoP
Between the time difference put.
Illustratively, it when detecting that the handwriting data packet in the file of answering questions of acquisition is also legal, then needs according to time shaft
VoP and handwriting data packet are played out and shown, specifically, can be stabbed according to the relative time in handwriting data packet
Handwriting data packet is stabbed the VoP played on corresponding time point with the relative time to be aligned, to subsequently walk
It can be while carrying out speech play to VoP in rapid, data packet of synchronously identifying the handwriting carries out the drafting of person's handwriting and shows
Show.
S370, VoP and handwriting data packet are abandoned.
Optionally, it if the handwriting data packet in detecting the file of answering questions of acquisition is illegal, is shown on playback terminal
The miscue information of failure is loaded, and abandons the VoP obtained and handwriting data packet, to save playback terminal
Memory space.
S380, the display resolution that handwriting data packet corresponds to person's handwriting is adaptively adjusted according to the resolution ratio of playback terminal.
S390, to VoP carry out speech play while, according to the display of handwriting data packet and person's handwriting differentiate
Rate carries out the drafting and display of person's handwriting.
The technical solution of the present embodiment is determining the person's handwriting by detecting the legitimacy of handwriting data packet in file of answering questions
It is stabbed according to the relative time in handwriting data packet when data packet is legal, by the time unifying of handwriting data packet and VoP,
Otherwise VoP and handwriting data packet are abandoned, realizes and improves data acquisition safety, ensure that data are played simultaneously, is saved
The effect of memory space.
Example IV
Fig. 4 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention four provides.This reality
It applies example to optimize based on the various embodiments described above, provides the playback method of preferred online question-answering content, it specifically, will
The display resolution that the handwriting data packet corresponds to person's handwriting is adaptively adjusted according to the resolution ratio of playback terminal to advanced optimize
For, including：Obtain the device pixel ratio of playback terminal；Handwriting data packet is adjusted according to device pixel ratio and setting zoom factor
The display resolution of corresponding person's handwriting.
S410, file of answering questions is obtained, wherein file of answering questions includes VoP and handwriting data packet.
S420, the device pixel ratio for obtaining playback terminal.
Wherein, device pixel by reading the systematic parameter of playback terminal than can be obtained, for example, reading
The value of window.devicePixelRatio, and be assigned to represent device pixel than variable scale.Obtain playback terminal
Device pixel than purpose be that the display resolution for corresponding to person's handwriting for follow-up adjustment handwriting data packet provides reference frame, makes
Display resolution can be automatically adjusted by obtaining the when of playing online question-answering content on different devices, improve the stability of result of broadcast.
S430, the display that person's handwriting is corresponded to according to device pixel ratio and setting zoom factor adjustment handwriting data packet are differentiated
Rate.
Due to playback terminal identify the handwriting data packet correspond to the display resolution of person's handwriting and zoom in and out when, may be to pixel
Resolution ratio of point itself impacts, thus needs to do uniform zoom to the coordinate of each pixel to adjust packet of notes correspondence
The display resolution of person's handwriting.
Preferably, it can adjust handwriting data packet according to formula f (x, y)=e (x, y) × r (x, y) × scale and correspond to pen
The display resolution of mark；Wherein, f (x, y) is the coordinate of each pixel under the display resolution of handwriting information after adjustment, e (x,
Y) it is that each the coordinate of pixel, r (x, y) are setting zoom factor under the display resolution of handwriting information before adjusting, scale is
The device pixel ratio of playback terminal.
Wherein, set zoom factor as acquire during online question-answering and show person's handwriting size on the client relative to
The scaling multiple value of person's handwriting size in practical writing process.
S440, to VoP carry out speech play while, according to the display of handwriting data packet and person's handwriting differentiate
Rate carries out the drafting and display of person's handwriting.
The technical solution of the present embodiment, by obtaining the device pixel ratio of playback terminal, and according to device pixel ratio and
Setting zoom factor adjustment handwriting data packet corresponds to the display resolution of person's handwriting, is answered online to realize to play on different devices
Display resolution is automatically adjusted when doubting content, improves the stability of result of broadcast.
Embodiment five
Fig. 5 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention five provides.This reality
It applies example to optimize based on the various embodiments described above, provides the playback method of preferred online question-answering content, it specifically, will
According to the display resolution of handwriting data packet and person's handwriting carry out person's handwriting drafting and display advanced optimize for, including：According to pen
The corresponding page number dynamic creation of current handwriting data and shows target pages in mark data packet；Existed according to the display resolution of person's handwriting
It is drawn on target pages and shows the corresponding person's handwriting of the handwriting data of preset quantity.
S510, file of answering questions is obtained, wherein file of answering questions includes VoP and handwriting data packet.
S520, the display resolution that handwriting data packet corresponds to person's handwriting is adaptively adjusted according to the resolution ratio of playback terminal.
S530, to VoP carry out speech play while, according to current handwriting data pair in handwriting data packet
The page number dynamic creation answered and shows target pages.
Preferably, handwriting data packet uses jsonp formats, the format to support same in computer end, page end, mobile phone application end
When compatibility play render handwriting data, to solve the problems, such as that browser is cross-domain, when browser read handwriting data packet after can
It is parsed into jsonp data with direct inside.Preferably, the jsonp formats of handwriting data packet can be specifically defined as：Including person's handwriting
Data head and handwriting data body, wherein handwriting data body includes variable s, the page number of the page where indicating person's handwriting, and current pen
The value of variable s in the handwriting data packet that the corresponding page number of mark data is currently read.
Illustratively, a page can be all created for the every page of person's handwriting, for showing that current handwriting data is corresponding
All person's handwritings under page number, wherein a page number maps a page, when playback terminal is shown, only display one every time
A page only shows that the target pages of the corresponding page number of current handwriting data, the page of other page numbers are then hidden.If next
The corresponding page number of a handwriting data to be shown page number corresponding from the handwriting data currently shown is different, then newly creates a page
Face, and be that page newly created by display page layout switch when needing to show next handwriting data with page number mapping association
Face.
S540, the handwriting data drawn on target pages according to the display resolution of person's handwriting and show preset quantity correspond to
Person's handwriting.
It identifies the handwriting for human eye and draws the impression level of comfort consideration of speed, while person's handwriting draws efficiency in order to balance, it is excellent
Choosing, preset quantity may be configured as 30, i.e., every 30 handwriting datas are drawn once, will not both be given in person's handwriting drawing process in this way
Human eye causes the feeling that interim card or great-jump-forward are drawn, while will not be caused stress to the memory source of playback terminal.It is exemplary
, according to the display resolution of the person's handwriting after adjustment, is drawn on the target pages currently shown every time and show 30 person's handwritings
The corresponding person's handwriting of data, the picture that mobile phone playback terminal is shown are as shown in Figure 8.
The technical solution of the present embodiment, by VoP carry out speech play while, according to handwriting data
The corresponding page number dynamic creation of current handwriting data and shows target pages in packet, and according to the display resolution of person's handwriting in target
It is drawn on the page and shows the corresponding person's handwriting of the handwriting data of preset quantity so that the drafting and display of person's handwriting meet human eye vision
It while custom, will not be caused stress to the memory source of playback terminal, improve broadcasting experience.
Embodiment six
Fig. 6 is a kind of flow diagram of the playback method for online question-answering content that the embodiment of the present invention six provides.This reality
It applies example to optimize based on the various embodiments described above, provides the playback method of preferred online question-answering content, specifically,
It is carried out advanced optimizing to further include after the drafting and display of person's handwriting according to the display resolution of handwriting data packet and person's handwriting：
When getting playing progress bar adjust instruction forward, currently playing progress is adjusted to forward by front according to adjust instruction forward
Target location；If the page number corresponding to the page shown before the page number and adjustment corresponding to the page shown under objects ahead position
It is identical, then all person's handwritings in page number are removed, and draw and show that initial position owns between objects ahead position under page number
The corresponding person's handwriting of handwriting data；If the page institute shown before the page number and adjustment corresponding to the page shown under objects ahead position
Corresponding page number is different, then removes all person's handwritings in the page number corresponding to the page shown before adjustment, and before drafting and display
Initial position is to all handwriting datas pair between objects ahead position under the page number corresponding to the page shown under square mesh cursor position
The person's handwriting answered.
S610, file of answering questions is obtained, wherein file of answering questions includes VoP and handwriting data packet.
S620, the display resolution that handwriting data packet corresponds to person's handwriting is adaptively adjusted according to the resolution ratio of playback terminal.
S630, to VoP carry out speech play while, according to the display of handwriting data packet and person's handwriting differentiate
Rate carries out the drafting and display of person's handwriting.
S640, when getting playing progress bar adjust instruction forward, according to adjust instruction forward by currently playing progress
It is adjusted to objects ahead position forward.
Illustratively, when user's forward slip playing progress bar, playback terminal can get playing progress bar and adjust forward
Current playing progress rate can be adjusted to the objects ahead position that user specifies forward by whole instruction according to adjust instruction forward at this time
Corresponding VoP at the time of setting, and obtain under the position, with the voice data corresponding time in the VoP
Stamp is that currently playing progress continues to play.
The page corresponding to the page of the page number with display before adjustment corresponding to the page shown under S650, objects ahead position
It is number whether identical, if so, executing S660；If it is not, then executing S670.
Illustratively, the corresponding page number of handwriting data is the position in the handwriting data packet obtained under objects ahead position
Page number corresponding to the page of lower display, the corresponding page number of handwriting data is tune in the handwriting data packet that finally obtains before adjustment
The page number corresponding to the page shown before whole.
S660, remove page number in all person's handwritings, and draw and display page number under initial position to objects ahead position it
Between the corresponding person's handwriting of all handwriting datas.
When illustratively, due to disposably drawing more than a handwriting data up to ten thousand, it can occupy in a large amount of in a short time
Resource is deposited, and the occupancy of central processing unit can instantaneously reach peak value, so as to cause the accident of application software on playback terminal
It exits, therefore, if the page that objects ahead position is shown is exactly the page currently shown, only removes all in current page
Person's handwriting, and only draw and show under current page number from initial position to the corresponding pen of all handwriting datas objects ahead position
Mark has been saved resource, has been improved so as to avoid repainting the corresponding person's handwriting of a large amount of handwriting data since first page
The reliability and stability of result of broadcast.
S670, all person's handwritings adjusted in the page number corresponding to the preceding page shown, and mesh in front of drafting and display are removed
Initial position is corresponding to all handwriting datas between objects ahead position under the page number corresponding to the page shown under cursor position
Person's handwriting.
Illustratively, it if the page that objects ahead position is shown is not the page currently shown, can directly remove current
All person's handwritings in the page of display, and only draw and show and risen under the page number corresponding to the page shown under objects ahead position
Beginning position is to the corresponding person's handwriting of all handwriting datas between objects ahead position, while the page that will be shown under objects ahead position
It is set as dispaly state.
The technical solution of the present embodiment passes through page number corresponding to the page that judges to show under objects ahead position and adjustment
Whether the page number corresponding to the page of preceding display is identical, to determine the person's handwriting corresponding to the handwriting data drawn and shown, to
Improve the reliability and stability of result of broadcast.
Optionally, the replacement step as S640 to S670, when getting playing progress bar adjust instruction backward, according to
Currently playing progress is adjusted to rear area target position by adjust instruction backward backward；If the page institute shown under rear area target position
Page number corresponding to corresponding page number and the preceding page shown of adjustment is identical, then draws and show the preceding play position of adjustment to rear
The corresponding person's handwriting of all handwriting datas between target location；If the page number corresponding to the page shown under rear area target position and tune
The page number corresponding to the page shown before whole is different, then removes all pens in the page number corresponding to the page shown before adjustment
Mark, and draw and display rear area target position under under page number corresponding to the page that shows initial position to rear area target position it
Between the corresponding person's handwriting of all handwriting datas.
Embodiment seven
Fig. 7 is a kind of structural schematic diagram of the playing device for online question-answering content that the embodiment of the present invention seven provides.With reference to
The playing device of Fig. 7, online question-answering content includes：File acquisition module 710, resolution adjustment module 720 and broadcasting show mould
Block 730 is below specifically described each module.
File acquisition module 710, for obtaining file of answering questions, wherein the file of answering questions includes VoP and pen
Mark data packet；
Resolution adjustment module 720, for being adaptively adjusted the handwriting data packet according to the resolution ratio of playback terminal
The display resolution of corresponding person's handwriting；
Display module 730 is played, is used for while carrying out speech play to the VoP, according to the person's handwriting
The display resolution of data packet and the person's handwriting carries out the drafting and display of person's handwriting.
The playing device of online question-answering content provided in this embodiment is answerred questions file by obtaining, and according to the resolution of terminal
Rate is adaptively adjusted answer questions file in handwriting data packet correspond to the display resolution of person's handwriting, while carrying out speech play,
The aobvious of automatic adjusument person's handwriting is utilized in the drafting and display that person's handwriting is carried out according to the display resolution of handwriting data packet and person's handwriting
The advantages of showing resolution ratio, solve display resolution in the prior art because of distinct device it is inconsistent caused by result of broadcast not
Stable problem automatically adjusts display resolution when realizing broadcasting online question-answering content on different devices, improves broadcasting
The stability of effect.
Optionally, can also include：
Whether legal first detection module detects the VoP after answering questions file in acquisition；
Carry voice module is used to if it is determined that the VoP is legal, then load the VoP.
Optionally, can also include：
Second detection module, for after loading the VoP, whether legal detecting the handwriting data packet；
Time unifying module is used for if it is determined that the handwriting data includes method, then according in the handwriting data packet
Relative time stabs, by the time unifying of the handwriting data packet and the VoP, wherein the relative time stamp is institute
State the time difference of acquisition time of handwriting data packet relative to the acquisition time of first VoP；
Data discard module, is used for if it is determined that the handwriting data packet is illegal, then abandon the VoP and
The handwriting data packet.
Optionally, resolution adjustment module 720 may include：
Pixel ratio acquisition submodule, the device pixel ratio for obtaining the playback terminal；
Resolution ratio determination sub-module, for adjusting the person's handwriting number according to the device pixel ratio and setting zoom factor
According to the display resolution of the corresponding person's handwriting of packet.
Optionally, the resolution ratio determination sub-module specifically can be used for：
According to formula：F (x, y)=e (x, y) × r (x, y) × scale adjusts the handwriting data packet and corresponds to the aobvious of person's handwriting
Show resolution ratio；
Wherein, f (x, y) is the coordinate of each pixel under the display resolution of handwriting information after adjusting, and e (x, y) is to adjust
The coordinate of each pixel under the display resolution of the whole preceding handwriting information, r (x, y) are setting zoom factor, and scale is institute
State the device pixel ratio of playback terminal.
Optionally, display module 730 is played specifically to can be used for：
According to the corresponding page number dynamic creation of current handwriting data in the handwriting data packet and shows target pages；
The handwriting data of preset quantity is drawn and shown on the target pages according to the display resolution of the person's handwriting
Corresponding person's handwriting.
Optionally, can also include：
Progress adjusts forward module, for carrying out pen according to the display resolution of the handwriting data packet and the person's handwriting
After the drafting and display of mark, when getting playing progress bar adjust instruction forward, it will be worked as according to the adjust instruction forward
Preceding playing progress rate is adjusted to forward objects ahead position；
First drawn forwards module, if the page number corresponding to the page for being shown under the objects ahead position and adjustment
Page number corresponding to the page of preceding display is identical, then removes all person's handwritings in the page number, and draw and show the page number
Lower initial position is to the corresponding person's handwriting of all handwriting datas between the objects ahead position；
Second drawn forwards module, if page number corresponding to the page for being shown under the objects ahead position with it is described
The page number corresponding to the page shown before adjustment is different, then removes the institute in the page number corresponding to the page shown before the adjustment
There is a person's handwriting, and draws and show under the page number corresponding to the page shown under the objects ahead position initial position to before described
The corresponding person's handwriting of all handwriting datas between square mesh cursor position.
Optionally, can also include：
Progress adjusts module backward, for carrying out pen according to the display resolution of the handwriting data packet and the person's handwriting
After the drafting and display of mark, when getting playing progress bar adjust instruction backward, it will be worked as according to the adjust instruction backward
Preceding playing progress rate is adjusted to rear area target position backward；
First drafting module backward, if the page number corresponding to the page for being shown under the rear area target position and adjustment
Page number corresponding to the page of preceding display is identical, then play position is between the rear area target position before drawing and showing adjustment
The corresponding person's handwriting of all handwriting datas；
Second drafting module backward, if page number corresponding to the page for being shown under the rear area target position with it is described
The page number corresponding to the page shown before adjustment is different, then removes the institute in the page number corresponding to the page shown before the adjustment
There is a person's handwriting, and draws and show under the page number corresponding to the page shown under the rear area target position initial position to after described
The corresponding person's handwriting of all handwriting datas between square mesh cursor position.
The said goods can perform the method that any embodiment of the present invention is provided, and have the corresponding function module of execution method
And advantageous effect.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of playback method of online question-answering content, which is characterized in that including：
Acquisition is answerred questions file, wherein the file of answering questions includes VoP and handwriting data packet；
It is adaptively adjusted the display resolution that the handwriting data packet corresponds to person's handwriting according to the resolution ratio of playback terminal；
While carrying out speech play to the VoP, according to the display of the handwriting data packet and the person's handwriting point
Resolution carries out the drafting and display of person's handwriting.
2. according to the method described in claim 1, it is characterized in that, after file is answerred questions in acquisition, further include：
Whether legal detect the VoP；
If it is determined that the VoP is legal, then the VoP is loaded.
3. according to the method described in claim 2, it is characterized in that, after loading the VoP, further include：
Whether legal detect the handwriting data packet；
If it is determined that the handwriting data includes method, then stabbed according to the relative time in the handwriting data packet, by the person's handwriting
The time unifying of data packet and the VoP, wherein when the relative time stamp is the acquisition of the handwriting data packet
Between o'clock relative to first VoP acquisition time time difference；
If it is determined that the handwriting data packet is illegal, then the VoP and the handwriting data packet are abandoned.
4. according to the method described in claim 1, it is characterized in that, described be adaptively adjusted according to the resolution ratio of playback terminal
The handwriting data packet corresponds to the display resolution of person's handwriting, including：
Obtain the device pixel ratio of the playback terminal；
The display resolution that the handwriting data packet corresponds to person's handwriting is adjusted according to the device pixel ratio and setting zoom factor.
5. according to the method described in claim 4, it is characterized in that, it is described according to the device pixel ratio and setting scaling because
Son adjusts the display resolution that the handwriting data packet corresponds to person's handwriting, including：
According to formula：F (x, y)=e (x, y) × r (x, y) × scale adjusts the display point that the handwriting data packet corresponds to person's handwriting
Resolution；
Wherein, f (x, y) is the coordinate of each pixel under the display resolution of handwriting information after adjusting, and e (x, y) is before adjusting
The coordinate of each pixel under the display resolution of the handwriting information, r (x, y) are setting zoom factor, and scale is described broadcasts
Put the device pixel ratio of terminal.
6. according to the method described in claim 1, it is characterized in that, described according to the aobvious of the handwriting data packet and the person's handwriting
Show that resolution ratio carries out the drafting and display of person's handwriting, including：
According to the corresponding page number dynamic creation of current handwriting data in the handwriting data packet and shows target pages；
It is drawn on the target pages according to the display resolution of the person's handwriting and shows that the handwriting data of preset quantity corresponds to
Person's handwriting.
7. according to the method described in claim 1, it is characterized in that, in the display according to the handwriting data packet and the person's handwriting
After resolution ratio carries out the drafting and display of person's handwriting, further include：
When getting playing progress bar adjust instruction forward, currently playing progress is adjusted forward according to the adjust instruction forward
It is whole to arrive objects ahead position；
If the page number corresponding to the page shown before the page number and adjustment corresponding to the page shown under the objects ahead position
It is identical, then remove all person's handwritings in the page number, and draw and show under the page number initial position to the objects ahead
The corresponding person's handwriting of all handwriting datas between position；
If corresponding to the page shown before the page number and the adjustment corresponding to the page shown under the objects ahead position
Page number is different, then removes all person's handwritings in the page number corresponding to the page shown before the adjustment, and described in drafting and display
Initial position is to all person's handwritings between the objects ahead position under the page number corresponding to the page shown under objects ahead position
The corresponding person's handwriting of data.
8. according to the method described in claim 1, it is characterized in that, in the display according to the handwriting data packet and the person's handwriting
After resolution ratio carries out the drafting and display of person's handwriting, further include：
When getting playing progress bar adjust instruction backward, currently playing progress is adjusted backward according to the adjust instruction backward
It is whole to arrive rear area target position；
If the page number corresponding to the page shown before the page number and adjustment corresponding to the page shown under the rear area target position
It is identical, then draw and show the preceding play position of adjustment to the corresponding person's handwriting of all handwriting datas between the rear area target position；
If corresponding to the page shown before the page number and the adjustment corresponding to the page shown under the rear area target position
Page number is different, then removes all person's handwritings in the page number corresponding to the page shown before the adjustment, and described in drafting and display
Initial position is to all person's handwritings between the rear area target position under the page number corresponding to the page shown under rear area target position
The corresponding person's handwriting of data.
9. a kind of playing device of online question-answering content, which is characterized in that including：
File acquisition module, for obtaining file of answering questions, wherein the file of answering questions includes VoP and handwriting data
Packet；
Resolution adjustment module corresponds to person's handwriting for being adaptively adjusted the handwriting data packet according to the resolution ratio of playback terminal
Display resolution；
Display module is played, is used for while carrying out speech play to the VoP, according to the handwriting data packet
The drafting and display of person's handwriting are carried out with the display resolution of the person's handwriting.
10. device according to claim 9, which is characterized in that the resolution adjustment module includes：
Pixel ratio acquisition submodule, the device pixel ratio for obtaining the playback terminal；
Resolution ratio determination sub-module, for adjusting the handwriting data packet according to the device pixel ratio and setting zoom factor
The display resolution of corresponding person's handwriting.
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