CN113014990A - Program picture fast playing method, playing box and playing system - Google Patents
Program picture fast playing method, playing box and playing system Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
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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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
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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
- H04N21/482—End-user interface for program selection
- H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
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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
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Abstract
The invention relates to the technical field of LED display screen program display, and particularly discloses a program picture quick playing method, a playing box and a playing system, wherein the method comprises the steps of establishing a link with a network interface which is pre-configured with interface parameters; receiving a request for rapidly playing a program picture through a network interface; reading and storing a pre-updated program picture pre-stored in the terminal equipment according to a preset program picture acquisition strategy; and replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacement strategy. The program picture fast playing method, the playing box and the playing system realize the transmission and display of the pre-updated program picture, can realize fast release of the program picture with smaller resolution, reduce the release time from 950ms of the existing mode to within 400ms of the mode of the invention, save more than half of the release time, obviously improve the efficiency of program release, and further improve the user experience.
Description
Technical Field
The invention relates to the technical field of program display of LED display screens, in particular to a program picture quick playing method, a playing box and a playing system.
Background
The play box is a device for connecting an LED display screen, and various programs/pictures or control instructions can be issued to the LED display screen through the play box, but at present, small pictures (e.g., pictures with a resolution of 250 × 400 pixels) need to be rapidly displayed on the LED display screen, and a rapid response of the play box cannot be obtained, and the program release time is limited to a certain extent, for example, the program response time from sending the program/picture to obtaining the LED display screen of the play box is 950ms, which obviously causes an inapplicable problem for a current scene needing to rapidly play the program/picture, so that a person in the art needs to find a new technical scheme to solve the above problem.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a program picture fast playing method, a playing box and a playing system.
The invention provides a method for rapidly playing program pictures, which comprises the following steps:
establishing a link with a network interface which is pre-configured with interface parameters; generating interface parameters through a preset parameter configuration strategy, wherein the interface parameters at least comprise the name of a currently played program, the type of an updated file and the coordinates of an updated program picture;
receiving a request for rapidly playing a program picture through a network interface;
reading and storing a pre-updated program picture pre-stored in the terminal equipment according to a preset program picture acquisition strategy;
replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacement strategy;
and sending a program picture display instruction to the LED display screen.
Further, reading and storing the pre-updated program picture pre-stored in the terminal device according to a preset program picture acquisition strategy, including:
reading a pre-updated program picture;
using the MemoryFile to save array data of the pre-updated program pictures;
reflecting to obtain a MemoryFile and serializing array data;
judging whether the inter-thread communication is established; if so, then
Sharing array data associated with the pre-updated program picture in the thread, and packaging the array data into pixel information; if not, then
Blocking a current thread according to preset time;
judging whether the communication between the threads is successfully established, if so,
and recovering the current thread, sharing array data associated with the pre-updated program picture in the thread, and packaging the array data into pixel information.
Further, reading the pre-updated program picture includes:
acquiring the maximum data transmission quantity of a network interface;
dividing the pre-updated program pictures into batches according to the maximum data transmission quantity;
and reading the pre-updated program pictures in batches according to the batch division result.
Further, replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacement strategy, including:
acquiring pixel information;
sending an updating broadcast to a corresponding view layer according to the coordinate of the updated program picture;
reading pixel information in a byte mode to obtain a pixel array;
and drawing all the pixel points in the view layer one by one according to the pixel array to generate a pre-updated program picture.
Further, the pre-updated program picture is a no-effect picture.
Further, the pre-updated program picture is in JPEG format, or PNG format, or BMP format.
The invention also provides a playing box, which comprises a receiving module, a reading module, a replacing module and a sending module, wherein:
the receiving module is connected with the reading module and used for acquiring interface parameters and a request for rapidly playing the program pictures; generating interface parameters through a preset parameter configuration strategy, wherein the interface parameters at least comprise the name of a currently played program, the type of an updated file and the coordinates of an updated program picture;
the reading module is connected with the receiving module and the replacing module and used for reading and storing the pre-updated program pictures stored in the terminal equipment in advance according to a preset program picture obtaining strategy;
the replacing module is connected with the reading module and the sending module and used for replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacing strategy;
and the sending module is connected with the replacing module and used for sending a program picture display instruction to the LED display screen.
The invention also provides a program picture fast playing system, which comprises the playing box, a terminal device, a server, a network interface and an LED display screen, wherein the terminal device is in communication connection with the server, the playing box is in communication connection with the server through the network interface, and the LED display screen is in communication connection with the playing box, wherein:
the terminal equipment is used for generating interface parameters for the network interface through a preset parameter configuration strategy and the server; establishing a pre-update program picture reading channel and sending a request for quickly playing a program picture to a server; the interface parameters at least comprise the name of the current playing program, the type of the updated file and the coordinates of the updated program picture;
the server is used for receiving the request for rapidly playing the program picture and sending the request to the playing box through the network interface;
the playing box is used for receiving a request for quickly playing the program pictures through a network interface; reading and storing a pre-updated program picture pre-stored in the terminal equipment according to a preset program picture acquisition strategy; replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacement strategy; sending a program picture display instruction to the LED display screen;
and the LED display screen is used for receiving the program picture display instruction and displaying the replaced program picture.
The program picture fast playing method, the playing box and the playing system realize the transmission and display of the pre-updated program picture, can realize fast release of the program picture with smaller resolution, reduce the release time from 950ms of the existing mode to within 400ms of the mode of the invention, save more than half of the release time, obviously improve the efficiency of program release, and further improve the user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart (one) of steps of a method for fast playing program pictures according to an embodiment of the present invention;
fig. 2 is a flowchart (ii) of steps of a method for fast playing program pictures according to an embodiment of the present invention;
fig. 3 is a flowchart (iii) illustrating steps of a method for fast playing program pictures according to an embodiment of the present invention;
fig. 4 is a flowchart (iv) of steps of a method for fast playing program pictures according to an embodiment of the present invention;
FIG. 5 is a structural diagram of a playbox according to an embodiment of the present invention;
fig. 6 is a structural composition diagram of a program picture fast playing system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In an embodiment of the present invention, a main implementation body of the method is a play box, and as shown in fig. 1, the method includes:
step S10: and establishing a link with the network interface which is configured with interface parameters in advance.
The interface parameters are generated through a preset parameter configuration strategy, and the interface parameters at least comprise the name of the current playing program, the type of the updated file and the coordinates of the updated program picture.
The configuration of the interface parameters may be performed by the terminal device accessing the server, for example, a PUT request using HTTP protocol, such as
“http://192.168.XX.XX/api/program/new.vsntype＝img&x＝0&y＝0”
This includes, in addition to the basic access path of the terminal device, the name of the currently playing program (i.e. the name of the updated program picture), which is "new.xx", the type "type ═ img" of the updated file, and the coordinates "x ═ 0", "y ═ 0" of the updated program picture, etc., and the body of the PUT request uses the binary, and the body stores the pre-updated program picture therein.
And after the playing box establishes a link with the interface, acquiring interface parameters of the interface.
Step S20: and receiving a request for fast playing the program picture through the network interface.
The fast playing program picture request is generated by a terminal device (e.g., upper computer software in a PC) and issued by a server, and step S30 is executed after the play box receives the fast playing program picture request through the interface.
Step S30: and reading and storing the pre-updated program pictures stored in the terminal equipment in advance according to a preset program picture acquisition strategy.
The terminal device establishes a reading channel of the pre-updated program picture in advance before generating a request for fast playing the program picture, and the pre-updated program picture in the embodiment of the invention is a single picture without special effects, and the format of the pre-updated program picture can be JPEG format, PNG format, BMP format or other static image formats. After receiving the request for fast playing the program picture, the playing box reads and stores the pre-updated program picture according to a preset program picture acquisition strategy, which specifically includes the steps of:
step S301: and reading the pre-updated program picture.
The playing box reads the pre-updated program pictures stored in the terminal device through the interface, and the specific process is as shown in fig. 3, and includes:
step S3011: and acquiring the maximum data transmission quantity of the network interface.
Since the reading process is limited by the data transmission amount of the interface, the maximum data transmission amount of the interface is monitored, and the maximum data transmission amount is related to the operation memory and the connection open state of the interface.
Step S3012: and dividing the pre-updated program pictures into batches according to the maximum data transmission quantity.
And dividing the pre-updated program pictures into a plurality of batches according to the maximum data transmission quantity and the size of the pre-updated program pictures.
Step S3013: and reading the pre-updated program pictures in batches according to the batch division result.
And reading the whole pre-updated program pictures in batches according to the batch division result.
The read pre-updated program pictures are stored in the body in advance, so that the storage function is reduced, the reading speed can be improved, and less time is taken.
Step S302: array data of the pre-updated program pictures is saved using the MemoryFile.
The MemoryFile is equivalent to a function in an android program, and the function can be used for storing pre-updated program pictures in the form of array data.
Step S303: reflection takes the MemoryFile and serializes the array data.
In this step, after step S302 is performed, the function of the MemoryFile is indirectly obtained in a form of reflection.
Step S304: it is determined whether inter-thread communication is established. If yes, go to step S305, otherwise go to step S306.
This step determines whether inter-thread communication is established in the code, which is indicated as whether bound AshmemServer. If the inter-thread communication is established, that is, the bind service is successful, step S305 is performed, and if the inter-thread communication is not established, step S306 is performed.
Step S305: and sharing array data associated with the pre-updated program picture in the thread, and packaging the array data into pixel information. The pixel information is represented in code as FileDescriptor.
Step S306: and blocking the current thread according to preset time.
If the judgment result is that the inter-thread communication is not established, the current thread is blocked, the duration is preset time, for example 10s, and in the time period, the array data is not subjected to packaging operation. After the preset time is over, step S307 is executed again.
Step S307: and judging whether the communication between the threads is established successfully. If yes, go to step S308.
It is determined again whether inter-thread communication is established, and if so, the current thread is resumed, step S308.
Step S308: the current thread is resumed, and step S305 is executed to share the array data associated with the pre-updated program picture in the thread, and encapsulate the array data into pixel information (FileDescriptor).
Step S40: and replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacing strategy.
Specifically, as shown in fig. 4, step S40 replaces the updated program picture with a pre-updated program picture according to the interface parameters and the preset program picture replacement policy, which includes:
step S401: pixel information is acquired.
The pixel information (FileDescriptor) is acquired through S301 to S308 in step S30.
Step S402: and sending an updating broadcast to the corresponding view map layer according to the coordinate of the updated program picture.
The view layer is represented in code as ItemimageView; the coordinates of the updated program picture, as in the previous embodiment, such as "x ═ 0" and "y ═ 0", represent the position information when the pre-updated program picture is to be displayed on the LED display screen, and this coordinate is default to the computer coordinates, and when "x ═ 0" and "y ═ 0", it means that the top left vertex of the pre-updated program picture is to be displayed at the top left vertex position of the LED display screen.
Step S403: reading the pixel information in the form of bytes to obtain a pixel array.
FileInputStream is obtained through pixel information (FileDescriptor), and is a file input group in a byte form, namely reading operation is carried out on the pixel information in the byte form, and then a pixel array (bitmap) is obtained.
Step S404: and drawing all the pixel points in the view layer one by one according to the pixel array to generate a pre-updated program picture.
The method comprises the steps that an updated program picture is drawn by original pixel points in a view layer (ItemiageView), after a new pixel array (bitmap) is read, the pixel points in the view layer are redrawn according to the new pixel array (bitmap), the value of each pixel point is replaced and is replaced by a pixel point value corresponding to a pre-updated program picture, and therefore the ItemiageView display pixel array (bitmap) achieves the purpose of replacing the updated program picture by the pre-updated program picture.
Step S50: and sending a program picture display instruction to the LED display screen.
And the LED display screen displays the replaced pre-updated program picture according to the program picture display instruction.
By the method of the embodiment, except for presetting related information, the time spent from the time of receiving the request for quickly playing the program picture to the time of displaying the program picture to be updated is reduced to within 400ms from 950ms in the prior art, so that more than half of the program release time is saved.
The present invention further provides an embodiment of a playing box, as shown in fig. 5, the playing box 1 includes a receiving module 101, a reading module 102, a replacing module 103, and a sending module 104, where:
the receiving module 101 is connected with the reading module 102 and is used for acquiring interface parameters and a request for rapidly playing a program picture; generating interface parameters through a preset parameter configuration strategy, wherein the interface parameters at least comprise the name of a currently played program, the type of an updated file and the coordinates of an updated program picture;
the reading module 102 is connected to the receiving module 101 and the replacing module 103, and is configured to read and store a pre-updated program picture pre-stored in the terminal device according to a preset program picture obtaining policy;
the replacing module 103 is connected with the reading module 102 and the sending module 104, and is configured to replace the updated program picture with a pre-updated program picture according to the interface parameter and a preset program picture replacing policy;
and the sending module 104 is connected with the replacing module 103 and is used for sending a program picture display instruction to the LED display screen.
Specifically, in the embodiment of the present invention, the reading module 102 reads and stores the pre-updated program picture pre-stored in the terminal device according to the preset program picture obtaining policy, including the following steps, as shown in fig. 2 and 3:
step S301: and reading the pre-updated program picture.
Step S3011: and acquiring the maximum data transmission quantity of the network interface.
Step S3012: and dividing the pre-updated program pictures into batches according to the maximum data transmission quantity.
And dividing the pre-updated program pictures into a plurality of batches according to the maximum data transmission quantity and the size of the pre-updated program pictures.
Step S3013: and reading the pre-updated program pictures in batches according to the batch division result.
Step S302: array data of the pre-updated program pictures is saved using the MemoryFile.
Step S303: reflection takes the MemoryFile and serializes the array data.
Step S304: it is determined whether inter-thread communication is established. If yes, go to step S305, otherwise go to step S306.
Step S305: and sharing array data associated with the pre-updated program picture in the thread, and packaging the array data into pixel information.
Step S306: and blocking the current thread according to preset time.
Step S307: and judging whether the communication between the threads is established successfully. If yes, go to step S308.
Step S308: the current thread is resumed, and step S305 is executed to share the array data associated with the pre-updated program picture in the thread and encapsulate the array data into pixel information.
Specifically, in the embodiment of the present invention, the replacing module 103 replaces the updated program picture with the pre-updated program picture according to the interface parameter and the preset program picture replacing policy specifically includes the following steps, as shown in fig. 4:
step S401: pixel information is acquired.
Step S402: and sending an updating broadcast to the corresponding view map layer according to the coordinate of the updated program picture.
Step S403: reading the pixel information in the form of bytes to obtain a pixel array.
Step S404: and drawing all the pixel points in the view layer one by one according to the pixel array to generate a pre-updated program picture.
The invention also provides an embodiment of a system for rapidly playing program pictures, as shown in fig. 6, the system includes the playing box 1 of the above embodiment, a terminal device 2, a server 3, a network interface 4 and an LED display screen 5, the terminal device 2 is in communication connection with the server 3, the playing box 1 is in communication connection with the server 3 through the network interface 4, and the LED display screen 5 is in communication connection with the playing box 1, wherein:
the terminal device 2 is used for generating interface parameters for the network interface 4 through a preset parameter configuration strategy and the server 3; establishing a pre-update program picture reading channel; and sending a request for fast playing the program picture to the server 3; the interface parameters at least comprise the name of the currently played program, the type of the updated file and the coordinates of the updated program picture. The terminal device 2 may be implemented by a PC device or a tablet computer.
And the server 3 is used for receiving the request of fast playing the program pictures and sending the request to the playing box 1 through the network interface 4.
The playing box 1 is used for receiving a request for fast playing the program pictures through the network interface 4; reading and storing a pre-updated program picture pre-stored in the terminal device 2 according to a preset program picture acquisition strategy; replacing the updated program picture with a pre-updated program picture according to the interface parameters and a preset program picture replacement strategy; and sends a program picture display instruction to the LED display screen 5.
And the LED display screen 5 is used for receiving a program picture display instruction and displaying the replaced program picture.
The function of the playing system of this embodiment can refer to the related embodiments described above, and will not be described herein again.
The program picture fast playing method, the playing box and the playing system of the embodiment of the invention realize the transmission and display of the pre-updated program picture, can realize fast publishing aiming at the program picture with smaller resolution, reduce the publishing time from 950ms of the existing mode to within 400ms of the mode of the invention, save more than half of the publishing time, obviously improve the efficiency of publishing the program, and further improve the user experience.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (8)
1. A method for fast playing program pictures is characterized by comprising the following steps:
establishing a link with a network interface which is pre-configured with interface parameters; the interface parameters are generated through a preset parameter configuration strategy, and the interface parameters at least comprise the name of a currently played program, the type of an updated file and the coordinates of an updated program picture;
receiving a request for fast playing a program picture through the network interface;
reading and storing a pre-updated program picture pre-stored in the terminal equipment according to a preset program picture acquisition strategy;
replacing the updated program picture with the pre-updated program picture according to the interface parameter and a preset program picture replacement strategy;
and sending a program picture display instruction to the LED display screen.
2. The method for rapidly playing program pictures according to claim 1, wherein the reading and storing the pre-updated program pictures pre-stored in the terminal device according to the preset program picture obtaining policy comprises:
reading the pre-updated program picture;
using the MemoryFile to save the array data of the pre-updated program picture;
reflecting to obtain a MemoryFile and serializing the array data;
judging whether the inter-thread communication is established; if so, then
Sharing the array data associated with the pre-updated program picture in the thread, and packaging the array data into pixel information; if not, then
Blocking a current thread according to preset time;
judging whether the communication between the threads is successfully established, if so,
and recovering the current thread, sharing the array data associated with the pre-updated program picture in the thread, and packaging the array data into pixel information.
3. The method for fast playing program pictures as claimed in claim 2, wherein said reading said pre-updated program picture comprises:
acquiring the maximum data transmission quantity of the network interface;
dividing the pre-updated program pictures into batches according to the maximum data transmission quantity;
and reading the pre-updated program pictures in batches according to the batch division result.
4. The method for rapidly playing program pictures according to claim 2, wherein the replacing the updated program picture with the pre-updated program picture according to the interface parameters and a preset program picture replacing policy comprises:
acquiring the pixel information;
sending an updating broadcast to a corresponding view layer according to the coordinate of the updated program picture;
reading the pixel information in a byte mode to obtain a pixel array;
and drawing all pixel points one by one in the view layer according to the pixel array to generate the pre-updated program picture.
5. The method as claimed in any one of claims 1 to 4, wherein the pre-updated program picture is a no-effect picture.
6. The method as claimed in claim 5, wherein the pre-updated program picture is in JPEG format, PNG format or BMP format.
7. A playbox, comprising a receiving module, a reading module, a replacing module, and a sending module, wherein:
the receiving module is connected with the reading module and used for acquiring interface parameters and a request for rapidly playing the program pictures; the interface parameters are generated through a preset parameter configuration strategy, and the interface parameters at least comprise the name of a currently played program, the type of an updated file and the coordinates of an updated program picture;
the reading module is connected with the receiving module and the replacing module and used for reading and storing the pre-updated program pictures stored in the terminal equipment in advance according to a preset program picture obtaining strategy;
the replacing module is connected with the reading module and the sending module and used for replacing the updated program picture with the pre-updated program picture according to the interface parameters and a preset program picture replacing strategy;
and the sending module is connected with the replacing module and is used for sending a program picture display instruction to the LED display screen.
8. A system for playing back program pictures quickly, comprising the playing box of claim 7, and a terminal device, a server, a network interface and an LED display screen, wherein the terminal device is communicatively connected to the server, the playing box is communicatively connected to the server through the network interface, and the LED display screen is communicatively connected to the playing box, wherein:
the terminal device is used for generating interface parameters for the network interface through a preset parameter configuration strategy and the server; establishing a pre-update program picture reading channel and sending a program picture fast playing request to the server; the interface parameters at least comprise the name of the current playing program, the type of the updated file and the coordinates of the updated program picture;
the server is used for receiving a request for rapidly playing the program picture and sending the request to the playing box through the network interface;
the playing box is used for receiving the request for rapidly playing the program pictures through the network interface; reading and storing a pre-updated program picture pre-stored in the terminal equipment according to a preset program picture acquisition strategy; replacing the updated program picture with the pre-updated program picture according to the interface parameter and a preset program picture replacement strategy; sending a program picture display instruction to the LED display screen;
and the LED display screen is used for receiving the program picture display instruction and displaying the replaced program picture.
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