CN106254928B - A kind of picture caption presentation method and device - Google Patents
A kind of picture caption presentation method and device Download PDFInfo
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- CN106254928B CN106254928B CN201610695737.9A CN201610695737A CN106254928B CN 106254928 B CN106254928 B CN 106254928B CN 201610695737 A CN201610695737 A CN 201610695737A CN 106254928 B CN106254928 B CN 106254928B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000003139 buffering effect Effects 0.000 claims description 17
- 238000005538 encapsulation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- 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
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
-
- 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
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
-
- 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
- H04N21/8146—Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of picture caption presentation method and devices, this method comprises: native layers of surface is passed through application and is sent to native layers of the player before video playing；In the video playing, native layers of the surface is sent from native layers of the player by the picture caption data；The picture caption data is shown in native layers of the surface.The embodiment of the present invention, native layers of surface can be sent to by application native layers of player, so that native layers of player can directly send picture caption data to native layers of surface, to show picture caption data in native layers of surface, the display efficiency of the picture caption data is improved.
Description
Technical field
The present invention relates to field of video broadcasting technology, more particularly to a kind of picture caption presentation method and device.
Background technique
Subtitle is divided into two kinds of formats of text subtitle and picture subtitle.Text subtitle refers to that caption information carries out in a text form
Storage, picture subtitle then refer to that caption information is stored in the form of picture.It (is carried out by USB, SD card playing local video
Play) when, both formats can all frequently encounter.
In prior art, as shown in Figure 1, the detailed process of the display picture caption data for prior art: primary
In subtitle processing framework, after picture caption data has parsed, to be transmitted to by MediaplayerService online using institute
The player mediaplayer of the native of journey, then uploads to Java layers of player mediaplayer, then uploads to and answer
With, then by being finally issued to native layers of surface again and being shown using java layers of surface are transmitted to.
Therefore, using the prior art of Fig. 1 when showing picture subtitle, the picture caption data need native layers,
Java layers are repeatedly transmitted picture caption data between application layer, and native layers of surface could be made to can get the picture
Caption data is simultaneously shown；In addition, requiring when the prior art one picture subtitle of every display according at above-mentioned process
Reason, so that whole process is relatively complicated, so that picture Subtitle Demonstration efficiency is relatively low.
Summary of the invention
The embodiment of the present invention, can be at native layers the technical problem to be solved is that a kind of picture caption presentation method is provided
Surface directly display picture caption data, improve the display efficiency of picture caption data.
Correspondingly, the embodiment of the invention also provides a kind of picture subtitling display equipments, to guarantee the reality of the above method
Existing and application.
To solve the above-mentioned problems, the invention discloses a kind of picture caption presentation methods, comprising:
Before video playing, native layers of surface is passed through into application and is sent to native layers of the player；
In the video playing, send from native layers of the player picture caption data to described
Native layers of surface；
The picture caption data is shown in native layers of the surface.
Preferably, described in the video playing, by the picture caption data from native layers of the player
Before the step of being sent to native layers of the surface, the method also includes:
Video file to be played is decapsulated by native layers of the player to obtain the picture caption data；
It is added in buffering queue by the picture caption data that native layers of the player will acquire.
Preferably, in the video playing, the picture caption data is sent from native layers of the player
The step of to native layers of the surface, comprising:
According to the current play time of the video, read in the buffering queue by native layers of the player
The picture caption data；
The picture caption data read is set in the broadcasting window of the video by native layers of the player
Displaing coordinate and scaling in mouthful；
Described native layers is sent from native layers of the player by the picture caption data after setting
surface。
Preferably, native layers of the surface is created by java layers of surface, java layers of the surface
It is created by the application.
Preferably, the method is applied to Android system.
The embodiment of the invention also discloses a kind of picture subtitling display equipments, comprising:
First sending module, for native layers of surface being passed through described using being sent to before video playing
Native layers of player；
Second sending module is used in the video playing, by the picture caption data from described native layers
Player is sent to native layers of the surface；
Display module, for showing the picture caption data in native layers of the surface.
Preferably, the picture subtitling display equipment further include:
Module is obtained, in the video playing, by the picture caption data from native layers of the broadcasting
Device was sent to before the step of native layers of surface, by native layers of the player to view to be played
Frequency file decapsulates to obtain the picture caption data；
Buffering queue module, the picture caption data for will acquire by native layers of the player is added
It is added in buffering queue.
Preferably, second sending module includes:
Reading submodule is read for the current play time according to the video by native layers of the player
Take the picture caption data in the buffering queue；
Submodule is set, and the picture caption data for being read by native layers of player setting is in institute
State the displaing coordinate and scaling in the broadcast window of video；
Sending submodule, for sending the picture caption data after setting to from native layers of the player
Native layers of the surface.
Preferably, native layers of the surface is created by java layers of surface, java layers of the surface
It is created by the application.
Preferably, described device is applied to Android system.
Compared with the background art, the embodiment of the present invention includes following advantages:
The embodiment of the present invention can send native layers of surface to by application native layers of player, thus
So that native layers of player can directly send picture caption data to native layers of surface, so as in native
The surface of layer shows picture caption data, avoids and repeatedly transmits picture word between application layer in native layers, java layers
Curtain data；Also, only need to before video playing, send one time native layers surface to native layer player, so that it may
To show all picture caption datas, without one picture caption data of every display just send one time native layers
Surface, so that the display efficiency of the picture caption data can be improved.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow chart of the picture Subtitle Demonstration of prior art；
Fig. 2 is a kind of step flow chart of picture caption presentation method embodiment 1 of the invention；
Fig. 3 is a kind of step flow chart of picture caption presentation method embodiment 2 of the invention；
Fig. 4 is a kind of structural block diagram of picture caption presentation method embodiment 3 of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig. 2, a kind of step flow chart of picture caption presentation method embodiment 1 of the invention is shown.This method
Applied to Android system.The Android system may be mounted at mobile phone, tablet computer, MP3/MP4, smartwatch, intelligence
In the intelligent terminals such as bracelet, computer.The method of the embodiment 1 can specifically include following steps:
Step 101: before video playing, native layers of surface being passed through into the broadcasting that application is sent to native layers
Device.
Wherein, using the player for referring to application layer, that is, the video jukebox software installed.
Wherein, native layers of surface is created by java layers of surface, and java layers of surface is created by application
It builds.
Step 102: in video playing, the player by picture caption data from native layers is sent to native layers
surface。
Since native layers of players have received native layers of surface, native layers of player and
Picture caption data can be transmitted between native layers of surface.
Step 103: showing picture caption data in native layers of surface.
When video playing, the picture caption data of simultaneous display matching video in native layers of surface, also,
All picture caption datas of the video can all be shown in the native layers of surface, not need one figure of every broadcasting
Piece caption data just sends one native layers of surface.
Since native layers of surface are created by java layers of surface, java layers of surface is created by application,
Therefore, native layers of surface can with java layers of surface, using transmitting picture caption data.And native layers broadcast
Putting device can only the player with java layers, the transmitting picture caption data between.Based on above-mentioned reason, nothing in prior art
Picture caption data is directly delivered to native layers of surface by method by native layers of player.But since application can
Data are transmitted between native layers of player, therefore, using native layers of surface directly being passed to native
The player of layer.In addition, picture caption data is not needed using the parameter settings such as progress color, therefore, picture caption data
It does not need to be sent to using processing.
Therefore, the picture caption presentation method of the embodiment of the present invention 1 is based on above-mentioned principle, by native layers
Surface is sent to native layers of player, so that native layers of player can directly send out picture caption data
It is sent to native layers of surface, to show picture caption data in native layers of surface, improves picture subtitle
The display efficiency of data.
Referring to Fig. 3, a kind of step flow chart of picture caption presentation method embodiment 2 of the invention is shown.This method
Applied to Android system.The Android system may be mounted at mobile phone, tablet computer, MP3/MP4, smartwatch, intelligence
In the intelligent terminals such as bracelet, computer.The method of the embodiment 2 can specifically include following steps:
Step 201: before video playing, native layers of surface being passed through into the broadcasting that application is sent to native layers
Device.
Wherein, using the player for referring to application layer, that is, the video jukebox software installed.
Wherein, native layers of surface is created by java layers of surface, and java layers of surface is created by application
It builds.
Step 202: video file to be played being decapsulated by native layers of players to obtain picture caption data.
Common video file encapsulation format has AVI, RMVB, MKV, ASF, WMV, MP4,3GP, FLV etc..By video text
Video, audio, subtitle etc. can be extracted after part decapsulation.This step video file is decapsulated after to obtain picture subtitle
Data.
Step 203: the picture caption data that will acquire by native layers of player is added in buffering queue.
The picture caption data of acquisition may have many, and therefore, picture caption data is first put into buffering queue,
Successively to handle picture caption data, and picture caption data is shown on time, avoid the picture caption data while showing
Cause the problem of can not correctly showing picture caption data.
Step 204: in video playing, the player by picture caption data from native layers is sent to native layers
surface。
Since native layers of players have received native layers of surface, native layers of player and
Picture caption data can be transmitted between native layers of surface.
In a preferred embodiment of the invention, step 204 includes following sub-step:
Step S41: according to the current play time of video, the figure in buffering queue is read by native layers of players
Piece caption data.
The step is to realize that picture subtitle and audio video synchronization are shown.For example, when video is multicast to the 3rd second, then reading
3rd second picture caption data to be shown.
Step S42: the picture caption data read by native layers of player setting is in the broadcast window of video
Displaing coordinate and scaling.
The size of each picture caption data may be different, and displaing coordinate and the contracting of picture caption data to be arranged every time
The ratio put, to guarantee that picture caption data can be shown in the suitable position for the intelligent terminal for playing the video.
Step S43: the player by the picture caption data after setting from native layers is sent to native layers
surface。
It will be sent to native layers of surface by the picture caption data of above-mentioned steps processing, ensure that the picture
Caption data can be shown with audio video synchronization, and can be shown in place.
Step 205: showing picture caption data in native layers of surface.
To sum up, native layers of surface is sent native by the picture caption presentation method of the embodiment of the present invention 2
The player of layer, so that native layers of player directly can send native layers for picture caption data
Surface improves the display efficiency of picture caption data to show picture caption data in native layers of surface；
In addition, being first put into buffering queue by the picture caption data that will acquire, avoid a large amount of picture caption data obtained same
When shown in the video of broadcasting, cause the picture subtitle and the unmatched problem of video of display, can control the picture subtitle aobvious
The process shown.
A kind of structural block diagram of picture subtitling display equipment embodiment 3 of the invention is shown referring to Fig. 4.The embodiment 3
Device be applied to Android system.The Android system may be mounted at mobile phone, tablet computer, MP3/MP4, intelligent hand
In the intelligent terminals such as table, Intelligent bracelet, computer.The device of the embodiment 3 specifically includes following structure:
First sending module 401, for native layers of surface being passed through application and is sent to before video playing
Native layers of player.
Wherein, native layers of surface is created by java layers of surface, and java layers of surface is created by application
It builds.
Second sending module 402, in video playing, the player by picture caption data from native layers to be sent
To native layers of surface.
Display module 403, for showing picture caption data in native layers of surface.
Preferably, the device of the embodiment 3 further include:
Module is obtained, in video playing, the player by picture caption data from native layers to be sent to
Before the step of native layers of surface, video file to be played is decapsulated to obtain by native layers of players
Picture caption data.
Buffering queue module is added, the picture caption data for will acquire by native layers of player is added to slow
It rushes in queue.
Preferably, which includes:
Reading submodule reads buffering team by native layers of players for the current play time according to video
Picture caption data in column.
Submodule is set, the picture caption data read is set in the broadcasting of video for the player by native layers
Displaing coordinate and scaling in window.
Sending submodule, for sending native layers from native layers of player for the picture caption data after setting
Surface.
To sum up, native layers of surface is sent native by the picture subtitling display equipment of the embodiment of the present invention 3
The player of layer, so that native layers of player directly can send native layers for picture caption data
Surface improves the display efficiency of picture caption data to show picture caption data in native layers of surface；
In addition, being first put into buffering queue by the picture caption data that will acquire, avoid a large amount of picture caption data obtained same
When shown in the video of broadcasting, cause the picture subtitle and the unmatched problem of video of display, can control the picture subtitle aobvious
The process shown.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (8)
1. a kind of picture caption presentation method characterized by comprising
Before video playing, native layers of surface is passed through into application and is sent to native layers of the player；Wherein,
Native layers of the surface is created by java layers of surface, and java layers of the surface is created by the application；
In the video playing, described native layers is sent from native layers of the player by picture caption data
surface；
The picture caption data is shown in native layers of the surface.
2. the method according to claim 1, wherein described in the video playing, by picture caption data
Before the step of being sent to native layers of the surface from native layers of the player, the method also includes:
Video file to be played is decapsulated by native layers of the player to obtain the picture caption data；
It is added in buffering queue by the picture caption data that native layers of the player will acquire.
3. according to the method described in claim 2, it is characterized in that, in the video playing, by picture caption data from institute
State the step of native layers of player is sent to native layers of the surface, comprising:
According to the current play time of the video, the institute in the buffering queue is read by native layers of the player
State picture caption data；
The picture caption data read by native layers of player setting is in the broadcast window of the video
Displaing coordinate and scaling；
Described native layers is sent from native layers of the player by the picture caption data after setting
surface。
4. described in any item methods according to claim 1~3, which is characterized in that the method is applied to Android system.
5. a kind of picture subtitling display equipment characterized by comprising
First sending module, for native layers of surface being passed through application and is sent to the native before video playing
The player of layer；Wherein, native layers of the surface is created by java layers of surface, described java layers
Surface is created by the application；
Second sending module, in the video playing, picture caption data to be sent out from native layers of the player
It is sent to native layers of the surface；
Display module, for showing the picture caption data in native layers of the surface.
6. device according to claim 5, which is characterized in that further include:
Module is obtained, for sending picture caption data to from native layers of the player in the video playing
Before the step of native layers of surface, by native layers of the player to video file solution to be played
Encapsulation obtains the picture caption data；
Buffering queue module is added, the picture caption data for will acquire by native layers of the player is added
Into buffering queue.
7. device according to claim 6, which is characterized in that second sending module includes:
Reading submodule reads institute by native layers of the player for the current play time according to the video
State the picture caption data in buffering queue；
Submodule is set, and the picture caption data for being read by native layers of player setting is in the view
Displaing coordinate and scaling in the broadcast window of frequency；
Sending submodule, it is described for sending the picture caption data after setting to from native layers of the player
Native layers of surface.
8. according to the described in any item devices of claim 5~7, which is characterized in that described device is applied to Android system.
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| CN201610695737.9A CN106254928B (en) | 2016-08-19 | 2016-08-19 | A kind of picture caption presentation method and device |
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| CN108632657B (en) * | 2018-07-06 | 2020-12-01 | 深圳创维－Rgb电子有限公司 | Subtitle display method, storage medium and smart television |
| CN111800669B (en) * | 2020-08-10 | 2021-04-06 | 视若飞信息科技(上海)有限公司 | Rendering method and device of text subtitles under android system |
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