CN108632657A - A kind of caption presentation method, storage medium and smart television - Google Patents
A kind of caption presentation method, storage medium and smart television Download PDFInfo
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- CN108632657A CN108632657A CN201810738343.6A CN201810738343A CN108632657A CN 108632657 A CN108632657 A CN 108632657A CN 201810738343 A CN201810738343 A CN 201810738343A CN 108632657 A CN108632657 A CN 108632657A
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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
- H04N21/4302—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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
-
- 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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Studio Circuits (AREA)
Abstract
The invention discloses a kind of caption presentation method, storage medium and smart television, method includes：One is pre-created to change for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；When receiving that user sends out when entering living broadcast channel instruction, then enters living broadcast channel and preparation plays TV programme；The play signal state of TV programme is monitored in real time by the broadcast mechanism；If monitoring, TV programme play signal state is normal, and sending subtitle by the broadcast mechanism opens broadcast, realizes being played simultaneously for TV programme and subtitle.The present invention is also in Native layers of establishment and destruction for completing Surface objects of system simultaneously, the Surface objects can be according to the real-time change of play signal state, subtitle is closed in flexible display, and will not occur the problem of subtitle ghost again, occupancy of the Surface objects to memory can be preferably controlled simultaneously, has been truly realized intelligent controllable.
Description
Technical field
The present invention relates to smart television Subtitle Demonstration fields, and in particular to a kind of caption presentation method, storage medium and intelligence
It can TV.
Background technology
Currently, due to too simple to the logical process mode of subtitle on Android television equipments, in use
It usually will appear problems with：
1）, when user need open subtitle when, subtitle but cannot normally be shown, influence user's normal use；
2）, close subtitle or when exiting video broadcasting condition, subtitle last frame data are not eliminated, and are still remained as user
On the screen；
3）, when user enters repeatedly, exits and plays channel, cause Surface to repeat to create, after running a period of time,
Surface Flinger committed memories are excessively high, and system interim card or memory is caused to be overflowed.
Therefore, the existing technology needs to be improved and developed.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of Subtitle Demonstration side
Method, storage medium and smart television, it is intended to which the logical process mode solved on existing television equipment to subtitle is too simple, easily goes out
The problem of existing subtitle but cannot normally be shown, subtitle remains and system interim card.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of caption presentation method, wherein the described method comprises the following steps：
One is pre-created to change for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；
When receiving that user sends out when entering living broadcast channel instruction, then enters living broadcast channel and preparation plays TV programme；
The play signal state of TV programme is monitored in real time by the broadcast mechanism；
If monitoring, TV programme play signal state is normal, and sending subtitle by the broadcast mechanism opens broadcast, realizes
TV programme and subtitle are played simultaneously.
The caption presentation method, wherein it is described when receiving the entrance living broadcast channel instruction that user sends out, then enter
Living broadcast channel and preparation play TV programme the step of further include：
After being successfully entered living broadcast channel, a Surface for being used for processing caption data is directly created for Native layers by system
Object.
The caption presentation method, wherein it is described after being successfully entered living broadcast channel, it is directly created for Native layers by system
The step of building the Surface objects for processing caption data specifically includes：
After being successfully entered living broadcast channel, obtained by the local agent of the SurfaceFlinger in Native layers of system
The local agent of SurfaceControl；
The local agent that Surface is obtained by the local agent of SurfaceControl, that is, successfully create for processing caption
The Surface objects of data.
The caption presentation method, wherein if described monitor that TV programme play signal state is normal, by described
Broadcast mechanism transmission subtitle unlatching broadcast, realization TV programme and subtitle specifically include the step of being played simultaneously：
If monitoring, TV programme play signal is normal, and sending subtitle by the broadcast mechanism opens broadcast；
Opening broadcast according to the subtitle calls corresponding Surface objects, the Surface objects to show subtitle and and TV
Program is played simultaneously.
The caption presentation method, wherein it is described that the corresponding Surface objects of broadcast calling are opened according to the subtitle,
The Surface objects further include step after showing subtitle and being played simultaneously with TV programme：
If monitor that TV programme play signal switches, subtitle switching broadcast is sent by the broadcast mechanism；
Switching broadcast according to the subtitle calls corresponding Surface objects, the Surface objects directly to switch display and work as
The preceding corresponding subtitle of TV programme play signal.
The caption presentation method, wherein if described monitor that TV programme play signal state is normal, pass through institute
It states broadcast mechanism and sends subtitle unlatching broadcast, realize that TV programme and being played simultaneously later for subtitle further include step：
When receiving that user sends out when exiting living broadcast channel instruction, then passes through and corresponding Surface objects is called to stop receiving
Caption data, and remove subtitle last frame picture；
After subtitle last frame picture is removed, the Surface objects are destroyed for Native layers by system.
A kind of storage medium, wherein be stored with a plurality of instruction, described instruction is suitable for being loaded and being executed by processor：
One is pre-created to change for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；
When receiving that user sends out when entering living broadcast channel instruction, then enters living broadcast channel and preparation plays TV programme；
The play signal state of TV programme is monitored in real time by the broadcast mechanism；
If monitoring, TV programme play signal state is normal, and sending subtitle by the broadcast mechanism opens broadcast, realizes
TV programme and subtitle are played simultaneously.
The storage medium, wherein be stored with a plurality of instruction, described instruction is suitable for being loaded by processor and specifically being held
Row：
After being successfully entered living broadcast channel, obtained by the local agent of the SurfaceFlinger in Native layers of system
The local agent of SurfaceControl；
The local agent that Surface is obtained by the local agent of SurfaceControl, that is, successfully create for processing caption
The Surface objects of data.
The storage medium, wherein be stored with a plurality of instruction, described instruction is suitable for being established and on by processor holding
Row：
When receiving that user sends out when exiting living broadcast channel instruction, then passes through and corresponding Surface objects is called to stop receiving
Caption data, and remove subtitle last frame picture；
After subtitle last frame picture is removed, the Surface objects are destroyed for Native layers by system.
A kind of smart television, wherein including processor, be adapted for carrying out each instruction；And memory, it is suitable for storing a plurality of finger
It enables, described instruction is suitable for the step of being loaded by processor and executing the caption presentation method.
Advantageous effect：The present invention provides a kind of caption presentation method, and real-time monitoring television program is used for by being pre-created
Play signal changes and sends the broadcast mechanism of broadcast, and the broadcast mechanism carries out the play signal state of TV programme real-time
Monitoring then sends subtitle by the broadcast mechanism and opens broadcast when monitoring that TV programme play signal state is normal, real
Existing TV programme and subtitle are played simultaneously；The present invention is also in Native layers of establishment for completing Surface objects of system simultaneously
With destruction, the Surface objects can be according to the real-time change of play signal state, and subtitle is closed in flexible display, and not
Can occur the problem of subtitle ghost again, while can preferably control Surface objects to the occupancy of memory, be truly realized intelligence
It can be controllable.
Description of the drawings
Fig. 1 is a kind of flow chart of caption presentation method preferred embodiment of the present invention.
Fig. 2 is a kind of structure diagram of smart television preferred embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of caption presentation method preferred embodiment provided by the invention, as schemed institute
Show, wherein the described method comprises the following steps：
S10, it is pre-created one and changes for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；
S20, when receiving that user sends out when entering living broadcast channel instruction, then enter living broadcast channel and preparation play TV Festival
Mesh；
S30, the play signal state of TV programme is monitored in real time by the broadcast mechanism；
If S40, monitoring that TV programme play signal state is normal, subtitle is sent by the broadcast mechanism and opens broadcast,
Realize being played simultaneously for TV programme and subtitle.
Specifically, existing television equipment is too simple to the processing logical course of subtitle, is easy in use
There is the problem of subtitle cannot normally be shown in time.
Based on this, the present embodiment, which has been pre-created, to be changed for real-time monitoring television program play signal and sends broadcast
Broadcast mechanism can monitor the play signal state of TV programme in real time by the broadcast mechanism, and according to monitoring
TV programme play signal state change go in time show, switching or close subtitle.
For entering DBV-C living broadcast channels, refer to when Native layer of system receives the entrance living broadcast channel that user sends out
When enabling, then enter DBV-C living broadcast channels；Into after living broadcast channel success, then start one by the broadcast mechanism pre-established
The broadcast of a monitoring TV program play signal state；When TV programme play successfully, i.e., the described broadcast mechanism monitors electricity
It is normal depending on program play signal state, at this time then by the broadcast mechanism send subtitle open broadcast, realize TV programme with
Subtitle is played simultaneously.After being successfully entered living broadcast channel, if TV programme play failure, i.e., the described broadcast mechanism monitors TV
Program play signal abnormal state is then not required to open subtitle at this time.
As a wherein embodiment, in TV programme playing process, if there is exception in TV programme play signal,
A subtitle closing information broadcast is sent out by broadcast mechanism immediately, closes currently playing subtitle in time.Further, if mistake
After a period of time, TV programme broadcast information restores normal, and it is wide then by broadcast mechanism to send out a subtitle opening imformation at this time
It broadcasts, restores subtitle again and play.
As a wherein embodiment, the step S20, when receiving that user sends out when entering living broadcast channel instruction,
Then enter living broadcast channel and preparation plays TV programme, further includes step：
After being successfully entered living broadcast channel, a Surface for being used for processing caption data is directly created for Native layers by system
Object.Specifically, described Native layers is the local ccf layer in android system, be usually used in some local services and
In chained library, operation is mainly realized by C and C Plus Plus.For example a complex calculation is executed, if gone by java codes
Realize, then efficiency can be very low, can select to go to realize by Native layers of C or C++ codes at this time, then with upper layer
Java code communicates（This part is known as jni mechanism in android）.For another example when equipment needs operation, then must
It is interacted with the hardware driving of bottom, also to pass through Native layers.
Further, in present embodiment, after being successfully entered living broadcast channel, by Native layers of system
The local agent of SurfaceFlinger obtains the local agent of SurfaceControl；Pass through the local of SurfaceControl
Agency obtains the local agent of Surface, that is, successfully creates the Surface objects for processing caption data.
As wherein another embodiment, if monitoring, TV programme play signal is normal, passes through the broadcast mechanism
It sends subtitle and opens broadcast；Broadcast is opened according to the subtitle and calls corresponding Surface objects, passes through described Surface pairs
It is played simultaneously as display subtitle and with TV programme.
Further, if monitor that TV programme play signal switches, word is sent by the broadcast mechanism
Curtain switching broadcast；Switch broadcast according to the subtitle and calls corresponding Surface objects, it is direct by the Surface objects
Switching shows subtitle corresponding with current television program play signal.
As wherein another embodiment, when receiving that user sends out when exiting living broadcast channel instruction, then pass through calling
Corresponding Surface objects stop receiving caption data, and remove subtitle last frame picture；When subtitle last frame picture is clear
After removing, the Surface objects are destroyed for Native layers by system.
Specifically, for entering DBV-C living broadcast channels, in TV programme playing process, if Native layers of system
Receive that user sends out when exiting living broadcast channel instruction, that is, prepare to exit living broadcast channel；At this point, being sent out by the broadcast mechanism
The broadcasting instructions for stopping receiving caption data are sent, corresponding Surface objects are called according to the broadcasting instructions, by calling phase
The Surface objects answered stop receiving caption data, and remove subtitle last frame picture；
Further, after subtitle last frame picture is removed, then by system Native layers directly destroy described Surface pairs
As releasing memory.After Surface objects destruction, stops TV programme and play and successfully exit living broadcast channel.
In the prior art, Surface objects are typically to be created to transmit toward Native layers again from upper layer application, and the present invention is then
It is the establishment and destruction that Surface objects are directly completed at Native layers so that Surface objects are decoupled with upper layer application, raw
It orders the period and safeguards that this establishment mode is more powerful to the control of Surface objects, can realize according to TV Festival by Native layers
The real-time change of mesh play signal state neatly shows, closes subtitle, and will not occur the problem of subtitle ghost again, simultaneously
Occupancy of the Surface objects to memory can also be preferably controlled, the subtitle optimization for being truly realized Android TVs is controllable.
Further, the present invention also provides a kind of storages wherein, is stored with a plurality of instruction, and described instruction is suitable for being added by processor
It carries and executes：
One is pre-created to change for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；
When receiving that user sends out when entering living broadcast channel instruction, then enters living broadcast channel and preparation plays TV programme；
The play signal state of TV programme is monitored in real time by the broadcast mechanism；
If monitoring, TV programme play signal state is normal, and sending subtitle by the broadcast mechanism opens broadcast, realizes
TV programme and subtitle are played simultaneously.
The storage medium, wherein be stored with a plurality of instruction, described instruction is suitable for being loaded by processor and specifically being held
Row：
After being successfully entered living broadcast channel, obtained by the local agent of the SurfaceFlinger in Native layers of system
The local agent of SurfaceControl；
The local agent that Surface is obtained by the local agent of SurfaceControl, that is, successfully create for processing caption
The Surface objects of data.
The storage medium, wherein be stored with a plurality of instruction, described instruction is suitable for being established and on by processor holding
Row：
When receiving that user sends out when exiting living broadcast channel instruction, then passes through and corresponding Surface objects is called to stop receiving
Caption data, and remove subtitle last frame picture；
After subtitle last frame picture is removed, the Surface objects are destroyed for Native layers by system.
Based on the above method, the present invention also provides a kind of smart televisions, wherein as shown in Fig. 2, the smart television includes
Processor 10 is adapted for carrying out each instruction；And memory 20, it is suitable for storing a plurality of instruction, described instruction is suitable for by processor 10
The step of loading and executing the caption presentation method.
Wherein, the memory 20 can be internal storage unit, hard disk or memory in some embodiments.The storage
Device 20 can also be External memory equipment, such as plug-in type hard disk, intelligent memory card in further embodiments（Smart
Media Card, SMC）, secure digital（Secure Digital, SD）Card, flash card（Flash Card）Deng.Further
Ground, the memory 20 can also be both including the internal storage units or including External memory equipment.The memory 20 is used
In the program code etc. of storage application software and Various types of data, such as the caption presentation method.The memory 20 can be with
For temporarily storing the data that has exported or will export.
The processor 10 can be a central processing unit in some embodiments（Central Processing Unit,
CPU）, microprocessor or other data processing chips, for running the program code stored in the memory 11 or processing number
According to, such as execute the method etc. of subtitle optimization.
In conclusion the present invention changes for real-time monitoring television program play signal by being pre-created and sends broadcast
Broadcast mechanism, the broadcast mechanism monitors the play signal state of TV programme in real time, when monitoring TV programme
When play signal state is normal, then subtitle is sent by the broadcast mechanism and open broadcast, realize the same of TV programme and subtitle
Step plays；The present invention is also in Native layers of establishment and destruction for completing Surface objects of system simultaneously, described Surface pairs
As capable of flexibly showing according to the real-time change of play signal state, closing subtitle, and will not occur asking for subtitle ghost again
Topic, while occupancy of the Surface objects to memory can be preferably controlled, it has been truly realized intelligent controllable.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of caption presentation method, which is characterized in that the described method comprises the following steps：
One is pre-created to change for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；
When receiving that user sends out when entering living broadcast channel instruction, then enters living broadcast channel and preparation plays TV programme；
The play signal state of TV programme is monitored in real time by the broadcast mechanism；
If monitoring, TV programme play signal state is normal, and sending subtitle by the broadcast mechanism opens broadcast, realizes
TV programme and subtitle are played simultaneously.
2. caption presentation method according to claim 1, which is characterized in that the entrance live streaming that user ought be received and sent out
When channel instruction, then enters living broadcast channel and prepared the step of playing TV programme further includes：
After being successfully entered living broadcast channel, a Surface for being used for processing caption data is directly created for Native layers by system
Object.
3. caption presentation method according to claim 2, which is characterized in that it is described after being successfully entered living broadcast channel, pass through
Native layers of system specifically includes the step of directly establishment one is used for the Surface objects of processing caption data：
After being successfully entered living broadcast channel, obtained by the local agent of the SurfaceFlinger in Native layers of system
The local agent of SurfaceControl；
The local agent that Surface is obtained by the local agent of SurfaceControl, that is, successfully create for processing caption
The Surface objects of data.
4. caption presentation method according to claim 3, which is characterized in that if described monitor TV programme play signal shape
State is normal, then sending subtitle by the broadcast mechanism opens broadcast, realizes TV programme and the step of being played simultaneously of subtitle
It specifically includes：
If monitoring, TV programme play signal is normal, and sending subtitle by the broadcast mechanism opens broadcast；
Opening broadcast according to the subtitle calls corresponding Surface objects, the Surface objects to show subtitle and and TV
Program is played simultaneously.
5. caption presentation method according to claim 4, which is characterized in that described to open broadcast calling phase according to the subtitle
The Surface objects answered, it further includes step that the Surface objects, which show subtitle and are played simultaneously later with TV programme,：
If monitor that TV programme play signal switches, subtitle switching broadcast is sent by the broadcast mechanism；
Switching broadcast according to the subtitle calls corresponding Surface objects, the Surface objects directly to switch display and work as
The preceding corresponding subtitle of TV programme play signal.
6. caption presentation method according to claim 2, which is characterized in that if described monitor TV programme play signal
State is normal, then sending subtitle by the broadcast mechanism opens broadcast, after realizing being played simultaneously of TV programme and subtitle
It further include step：
When receiving that user sends out when exiting living broadcast channel instruction, then passes through and corresponding Surface objects is called to stop receiving
Caption data, and remove subtitle last frame picture；
After subtitle last frame picture is removed, the Surface objects are destroyed for Native layers by system.
7. a kind of storage medium, which is characterized in that be stored with a plurality of instruction, described instruction is suitable for being loaded and being executed by processor：
One is pre-created to change for real-time monitoring television program play signal and send the broadcast mechanism of broadcast；
When receiving that user sends out when entering living broadcast channel instruction, then enters living broadcast channel and preparation plays TV programme；
The play signal state of TV programme is monitored in real time by the broadcast mechanism；
If monitoring, TV programme play signal state is normal, and sending subtitle by the broadcast mechanism opens broadcast, realizes
TV programme and subtitle are played simultaneously.
8. storage medium according to claim 7, which is characterized in that be stored with a plurality of instruction, described instruction be suitable for by
Reason device is loaded and is specifically executed：
After being successfully entered living broadcast channel, obtained by the local agent of the SurfaceFlinger in Native layers of system
The local agent of SurfaceControl；
The local agent that Surface is obtained by the local agent of SurfaceControl, that is, successfully create for processing caption
The Surface objects of data.
9. storage medium according to claim 8, which is characterized in that be stored with a plurality of instruction, described instruction be suitable for by
Reason device is established and on execution：
When receiving that user sends out when exiting living broadcast channel instruction, then passes through and corresponding Surface objects is called to stop receiving
Caption data, and remove subtitle last frame picture；
After subtitle last frame picture is removed, the Surface objects are destroyed for Native layers by system.
10. a kind of smart television, which is characterized in that including processor, be adapted for carrying out each instruction；And memory, it is suitable for storage
The step of a plurality of instruction, described instruction is suitable for requiring 1-6 any caption presentation methods by processor load and perform claim.
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| CN201810738343.6A CN108632657B (en) | 2018-07-06 | 2018-07-06 | Subtitle display method, storage medium and smart television |
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| CN111800669A (en) * | 2020-08-10 | 2020-10-20 | 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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| CN110333993A (en) * | 2019-06-24 | 2019-10-15 | 北京三快在线科技有限公司 | Generation method, device, electronic equipment and the storage medium of memory image |
| CN111800669A (en) * | 2020-08-10 | 2020-10-20 | 视若飞信息科技(上海)有限公司 | Rendering method and device of text subtitles under android system |
| 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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