CN113014976A - Media processing and playing control method, device and display system - Google Patents
Media processing and playing control method, device and display system Download PDFInfo
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
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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
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H—ELECTRICITY
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- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
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- H04N21/812—Monomedia components thereof involving advertisement data
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Abstract
The invention discloses a media processing and playing control method, a device and a display system, wherein the playing control method comprises the following steps: acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, resolution of media to be played and discount information of the media to be played; acquiring a medium to be played according to the medium storage address; and performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and output the folding images for display. The invention can realize that the user ultra-long media or ultra-high media are played on one media playing control device for display under the condition of not increasing the number of the media playing control devices, thereby saving the economic cost for the user.
Description
Technical Field
The invention belongs to the technical field of media playing control and display, and particularly relates to a media processing method, a media processing device, a media playing control method, a media playing control device and a display system.
Background
With the continuous development of display technology, LED display screens are widely used in various fields and occasions as a new type of information display media. An LED Display screen Control System (LED Display Control System) is a core component constituting an LED Display screen, and is a System for controlling an LED large screen to correctly Display a user program according to a user requirement. According to the access signal mode, the LED display screen control system can be divided into a synchronous control system and an asynchronous control system. The synchronous control system is used for displaying pictures displayed on a computer on an LED display screen in real time, and the connection mode generally adopts an upper computer, a sending card, a receiving card and the LED display screen. The synchronous control system requires that each LED display screen needs at least one upper computer, one sending card and one receiving card. The asynchronous control system is characterized in that media related to a play list and the list are transmitted to an asynchronous control card (a sending card or a play box) through a USB flash disk, a serial port, an SD card or a cloud server network, and the asynchronous control card controls a receiving card and an LED display screen to display according to a received play strategy plan and a control command. The playing box is used as a media playing control device, and the output resolution of the playing box depends on the loading capacity of the CPU adopted by the playing box.
In practical applications, users often need to play an ultra-long or ultra-high media for advertisement media in places such as a football field, a basketball court, a square, etc., such as: when a user wants to play a very long medium around the entire football field or when the user wants to play a very high medium such as a vertical banner, the length or height of the user medium may exceed the playable medium of the LED display manufacturer, that is, the resolution of the user medium exceeds the output loading area of the playing box, and the user picture is not displayed completely or cannot be displayed on the LED display screen. At present, the output tape load is increased by a playing box cascade mode, that is, a mode of connecting a plurality of playing boxes is adopted, so that the program can be completely displayed.
However, this approach increases the economic cost.
Disclosure of Invention
In view of the above, the present invention provides a media processing method, a media processing apparatus, a media playing control method, a media playing control apparatus and a display system, which can realize the playing of ultra-long or ultra-high media without increasing the playing box, so as to reduce the economic cost.
The technical problem to be solved by the invention is realized by the following technical scheme:
an embodiment of the present invention provides a media processing method, including:
acquiring the size of a loading area of target media playing and controlling equipment;
acquiring the resolution of a target display screen, wherein the target display screen is carried by the target media playing and controlling device;
obtaining discount parameters;
acquiring a medium to be discounted;
generating media playing parameters according to the size of the loading area of the target media playing control equipment, the size of the resolution of the target display screen, the size of the resolution of the media to be discounted and the discount parameters;
and associating the media playing parameters with the media to be discounted to generate a playing parameter data packet for outputting so as to be used by the target media playing control equipment.
According to the embodiment of the invention, the media playing parameters are generated by the target media playing control equipment, the target display screen and the related parameters of the media to be discounted, and are associated with the media to be discounted into the playing parameter data packet which is easy to generate and analyze and output, so that the transmission efficiency is improved, and the follow-up operation is facilitated.
In one embodiment of the present invention, the folding parameters include a folding direction and an offset of the first fold in the folding direction, wherein the folding direction is selected from one of a horizontal folding and a vertical folding.
In an embodiment of the present invention, the play parameter data packet is a JSON format data packet.
In an embodiment of the present invention, the play parameter data packet includes: the media to be discounted is stored in the target media playing control device, the resolution of the media to be discounted is large, and the media to be discounted is discount information, wherein the discount information of the media to be discounted comprises discount times, discount directions, initial coordinates of each discount and resolution.
In an embodiment of the present invention, associating the media playing parameter with the media to be discounted to generate a playing parameter data packet for output, so that the target media playing control device can use the playing parameter data packet, including:
calculating the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing and controlling device;
calculating the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and generating and outputting the playing parameter data packet according to the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution, so as to be used by the target media playing control device.
Another embodiment of the present invention provides a media processing apparatus, configured to execute the media processing method according to the above embodiment, and includes:
the first acquisition module is used for acquiring the size of a loading area of the target media playing and controlling equipment;
the second acquisition module is used for acquiring the resolution of a target display screen, wherein the target display screen is carried by the target media playing and controlling device;
the third acquisition module is used for acquiring discount parameters;
the fourth acquisition module is used for acquiring the media to be discounted;
the parameter generation module is used for generating media playing parameters according to the size of the loading area of the target media playing control equipment, the size of the resolution of the target display screen, the size of the resolution of the media to be discounted and the discount parameters;
and the data packet output module is used for associating the media playing parameters with the media to be discounted to generate playing parameter data packets to be output for the target media playing control equipment to use.
In one embodiment of the present invention, the packet output module includes:
the first calculating unit is used for calculating the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing and controlling device;
the second calculating unit is used for calculating the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and the data association generating unit is used for generating the playing parameter data packet from the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution and outputting the playing parameter data packet for the target media playing control device to use.
The media processing device provided by the embodiment of the invention can generate media playing parameters for the target media playing control equipment, the target display screen and the relevant parameters of the media to be discounted, and output the playing parameter data packet associated with the media to be discounted, thereby improving the transmission efficiency and facilitating the subsequent operation.
Another embodiment of the present invention provides a media playing control method, including:
acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, resolution of media to be played and discount information of the media to be played;
acquiring a medium to be played according to the medium storage address;
and performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and output the folding images for display.
According to the embodiment of the invention, the folding operation is carried out on the medium to be played according to the media playing parameters, the overlong or ultrahigh media is folded into a plurality of images and output, the overlong or ultrahigh media with larger resolution can be output under the condition of smaller output load, and the economic cost brought by increasing the output load is saved for users.
In an embodiment of the present invention, the performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and outputting the folding images for display includes:
creating a temporary canvas according to the resolution of the media to be played, and drawing the media to be played on the temporary canvas frame by frame to obtain image frames;
and carrying out image interception operation on the image frame for multiple times according to the media discount information to be played so as to obtain a plurality of discount images.
In an embodiment of the present invention, performing a plurality of image capturing operations on the image frame according to the media discount information to be played to obtain the plurality of discount images includes:
reading the resolution of each fold in the media folding information to be played;
determining the intercepting position of each folded image in the image frame according to the resolution of each fold by taking the initial coordinate of the first folded image as a reference point;
and sequentially intercepting the frame image from the image frame according to the intercepting position to obtain a plurality of discounted images.
In an embodiment of the present invention, the performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folded images and outputting the folded images for display further includes:
carrying out special effect processing on the image frame to obtain an image frame after the special effect processing;
correspondingly, the performing image capturing operation on the image frame for multiple times according to the media discount information to be played to obtain the multiple discount images specifically comprises:
and performing image interception operation on the image frame after the special effect processing according to the media discount information to be played for multiple times.
Yet another embodiment of the present invention provides a media playing control apparatus, including:
the parameter acquisition module is used for acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, the resolution of media to be played and discount information of the media to be played;
the media acquisition module is used for acquiring media to be played according to the media storage address;
and the folding processing module is used for folding the media to be played frame by frame according to the resolution of the media to be played and the folding information of the media to be played so as to obtain a plurality of folding images and output the folding images for display.
The media playing control device provided by the embodiment of the invention performs folding operation on the media to be played according to the media playing parameters, folds the ultra-long or ultra-high media into a plurality of images and outputs the images, and can realize the output of the ultra-long or ultra-high media with larger resolution on the media playing control device with smaller output tape without increasing the media playing control device, thereby saving the economic cost for users.
In one embodiment of the present invention, the discount processing module includes:
the drawing unit is used for creating a temporary canvas according to the resolution of the media to be played and drawing the media to be played on the temporary canvas frame by frame to obtain image frames;
and the intercepting unit is used for carrying out image intercepting operation on the image frame for multiple times according to the media discount information to be played so as to obtain a plurality of discount images.
In an embodiment of the present invention, the intercepting unit is specifically configured to:
reading the resolution of each fold in the media folding information to be played;
determining the intercepting position of each folded image in the image frame according to the resolution of each fold by taking the initial coordinate of the first folded image as a reference point;
and sequentially intercepting the frame image from the image frame according to the intercepting position to obtain a plurality of discounted images.
In an embodiment of the present invention, the discount processing module further includes:
the special effect unit is used for carrying out special effect processing on the image frame to obtain an image frame after the special effect processing;
correspondingly, the intercepting unit is specifically configured to: and performing image interception operation on the image frame after the special effect processing according to the media discount information to be played for multiple times.
The embodiment of the invention also provides a display system, which comprises a media playing control device and an LED display screen carried by the media playing device, wherein the media playing control device is integrated with the media playing control device according to the embodiment.
According to the display system provided by the embodiment of the invention, the overlong or ultrahigh media are displayed on one LED display screen in a mode of folding the media, so that the economic cost is saved for a user.
As can be seen from the above, the embodiments of the present invention may have one or more of the following advantages:
1. the media processing and playing control method provided by the invention firstly generates playing parameters according to actual requirements, then discounts the media according to the playing parameters, displays the media with large resolution in a range of a normal program (capable of carrying), realizes the display of the user ultra-long media or ultra-high media on a playing device under the condition of not increasing output carrying, and saves economic cost for the user;
2. the media processing and playing control method provided by the invention not only can realize the display of the ultra-long and ultra-high media such as characters and pictures, but also can realize the display of other media which are formed by rapidly playing one frame of picture;
3. the media playing and controlling method provided by the invention ensures that the program playing effect is smooth and uniform and is not damaged, and meanwhile, a user does not need to spend a great deal of effort to adapt to the special effect algorithm, thereby improving the efficiency.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a flowchart of a media processing method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a main interface of computer software according to an embodiment of the present invention;
FIG. 3 is a user media picture provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a screen configuration software interface provided by an embodiment of the invention;
FIG. 5 is a schematic diagram of a playing coordinate system according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of horizontal folding provided by an embodiment of the present invention;
fig. 7 is a block diagram of a media processing device according to an embodiment of the present invention;
fig. 8 is a flowchart of a media playing control method according to an embodiment of the present invention;
FIGS. 9 a-9 c are diagrams of media presentation effects provided by embodiments of the present invention;
fig. 10 is a block diagram illustrating a media playing control apparatus according to an embodiment of the present invention;
fig. 11 is another block diagram of a media playing and controlling device according to an embodiment of the present invention;
FIG. 12 is a diagram illustrating the display effect of the ultra-high media after being processed and controlled according to the embodiment of the present invention;
FIG. 13 is a diagram illustrating the display effect of the media processing with a certain offset after being played according to the embodiment of the present invention;
fig. 14 is a block diagram of a display system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of 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.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, fig. 1 is a flowchart of a media processing method according to an embodiment of the present invention, including the following steps:
s11: acquiring the size of a loading area of target media playing and controlling equipment;
specifically, the size of the loading area of the target media playing and controlling device is the maximum output loading of the target media playing and controlling device.
S12: acquiring the resolution of a target display screen, wherein the target display screen is carried by the target media playing and controlling device;
in this embodiment, the resolution of the target display screen refers to the actual display screen information, specifically to the width and height of the actual display screen, that is, the width and height of the lamp panel that the user wants to display on the spot.
S13: obtaining discount parameters;
the folding parameters comprise a folding direction and an offset of the first folding in the folding direction, wherein the folding direction is selected from one of horizontal folding and vertical folding.
S14: acquiring a medium to be discounted;
the media to be discounted is the ultra-long or ultra-wide media, such as characters, pictures, animations, etc., to be played by the user.
S15: generating media playing parameters according to the size of the loading area of the target media playing control equipment, the size of the resolution of the target display screen, the size of the resolution of the media to be discounted and the discount parameters;
s16: and associating the media playing parameters with the media to be discounted to generate a playing parameter data packet for outputting so as to be used by the target media playing control equipment.
Preferably, the playing parameter data packet may be a JSON format data packet, which may be implemented in Java language.
JSON (JSON Object tagging) is a lightweight data exchange format. It stores and represents data in a text format that is completely independent of the programming language, based on a subset of ECMAScript (js specification set by the european computer association). The simple and clear hierarchical structure enables JSON to become an ideal data exchange language, is easy to read and write by people, is easy to analyze and generate by machines, and can effectively improve the network transmission efficiency.
Further, the playing parameter data packet includes: the media to be discounted is stored in the target media playing control device, the resolution of the media to be discounted is large, and the media to be discounted is discount information, wherein the discount information of the media to be discounted comprises discount times, discount directions, initial coordinates of each discount and resolution.
Specifically, associating the media playing parameter with the media to be discounted to generate a playing parameter data packet for outputting, so that the target media playing control device can use the playing parameter data packet, including:
calculating the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing and controlling device;
calculating the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and generating and outputting the playing parameter data packet according to the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution, so as to be used by the target media playing control device.
The following describes the media processing method of the present embodiment in detail by taking computer software as an example.
Referring to fig. 2, fig. 2 is a schematic diagram of a main interface of computer software according to an embodiment of the present invention;
the various parameters of the user media are obtained through the "component properties" column on the right side of fig. 2.
Specifically, the size of the loading area of the target media playing control device is obtained through W, H of the area (px) in fig. 2; in this embodiment, the maximum output tape load of the target media playback control device is 400 × 400, and W, H are both 400, and the start coordinate X, Y is 0.
Further acquiring the resolution of the target display screen through "actual display screen width and height" in fig. 2; the width of the actual display screen obtained in this embodiment is 1600, and the height is 100.
Then, obtaining a folding parameter, specifically through a cutting direction on the right side of the graph 2 and a first-row offset module; the cutting direction that this embodiment obtained is the level and is broken over, and the first line skew is 0.
Finally, media to be discounted are obtained; in particular, by the one in fig. 2
Controls to capture a user media picture. Referring to fig. 3, fig. 3 is a user media picture according to an embodiment of the present invention, the user media picture obtained in the embodiment is an ultra-long media, and the length of the user media picture is 1600, and the height of the user media picture is 100.
After the information is acquired, the software can automatically discount the current media. The rule of automatic discount of the computer software depends on the real screen matching resolution parameter.
Here, it should be noted that, at the time of playing a section, the LED display screen needs to be configured by using screen configuration software, and the purpose is to enable the target media playing control device to obtain information such as resolution, routing manner, and the like of the display screen. After the LED light box lines are connected, a one-to-one display mapping relationship is not established with the program output of the media playing control device (e.g., playing box), that is, the playing box does not know which areas of the LED display screen can be used for displaying programs before the playing box is not equipped with a screen, and the LED display screen does not know which lamp panels or which positions of the LED display screen the programs output by the playing box should be displayed on, so that the configuration of the resolution parameters of the display screen is required.
Specifically, the screen configuration is to configure a display area, for example, a 1600 × 100 rectangular LED display screen is configured as a square 400 × 400 display area for displaying programs, and specifically, the screen configuration is composed of 4 screens of 400 × 100. The screen matching resolution parameters mainly comprise screen matching width and screen matching height; referring to fig. 4, fig. 4 is a schematic diagram of a screen configuration software interface according to an embodiment of the present invention; since the user media length is 1600, the height is 100, the maximum resolution supported by the playbox is 400 x 400, and the screen configuration software configures the LED display screen to 400 x 400, then the playbox knows that it can display the broadcast in the area of 400 x 400.
Now, assuming that the maximum horizontal loading of a playing box is 100 × 4 to 400, and it is obvious that the playing box does not display the length of the user media currently, the user media can be folded by 4, the display width and the display height are respectively configured as 400 and 100, the first fold is displayed in the first row position of fig. 4, and occupies the positions of (1, 1), (1, 2), (1, 3), (1, 4) in fig. 4, the second fold occupies the positions of (2, 1), (2, 2), (2, 3), (2, 4) in fig. 4, the third fold occupies the positions of (3, 1), (3, 2), (3, 3), (3, 4) in fig. 4, the fourth fold occupies the positions of (4, 1), (4, 2), (4, 3), (4, 4) in fig. 4, and then the second row of light panels is moved to the right of the first row of light panels, and the third row of light panels is moved to the right of the second row of light panels, the fourth row of light boards is moved to the right side of the third row of light boards in sequence to achieve the purpose of displaying the user ultra-long media.
It is particularly noted that the screen width and height of the screen must not exceed the size of the loading area of the target media playback device, i.e., the maximum resolution width and height of the playbox.
After the parameters are acquired, the computer software can associate the media playing parameters with the media to be discounted according to the screen matching parameters to generate a playing parameter data packet for outputting. The JSON format data packet can be selected as the playing parameter data packet, and has the advantages of being easy to read and write by people, easy to analyze and generate by machines and capable of effectively improving network transmission efficiency.
The generated play parameter data packet includes the following information: the media playing method comprises the steps that a storage address of media to be folded on target media playing control equipment, the resolution of the media to be folded and folding information of the media to be folded, wherein the folding information of the media to be folded comprises folding times, folding directions, initial coordinates of each fold and the resolution.
Specifically, the obtained picture media to be displayed by the user is 1600 × 100 in the embodiment, that is, the length W0 of the user real media is 1600, the width H0 is 100, and the actual display information is 400 × 400, that is, the playing area is 400 × 400. The computer software calculates the picture to be printed in 4 folds by 1600 ÷ 400. The starting coordinates and resolution size for each fold are then calculated.
Referring to fig. 5, fig. 5 is a schematic diagram of a playing coordinate system according to an embodiment of the present invention; the playing area is 400 × 400, and increases in the direction of X, Y. The resolution size, i.e., the width and height of the rectangle, of each fold is represented as (Wn, Hn), and the offset coordinate of each fold is represented as (Xn, Yn); wherein n represents the number of discounts, which is a positive integer greater than 1. The width Wn and the height Hn of each folded rectangle meet the following conditions: w0 ═ W1+ W2. + Wn, H0 ═ H1 ═ H2 ═ Hn.
The computer software calculates the initial coordinate and the resolution of each fold according to the acquired folding direction, folding times and the resolution of the medium to be folded; such as:
the folding direction is the horizontal direction, the folding times is 4, the resolution of the medium to be folded is 1600 multiplied by 100, the software calculates that the resolution of each fold is 400 multiplied by 100, namely the width of each fold is 400, the height is 100, the first fold initial placing position (X, Y) is taken as the coordinate origin (0, 0), the initial placing position of each fold is calculated according to the resolution of each fold of 400 multiplied by 100, wherein the initial placing coordinate of the second fold is (0, 100), the initial placing coordinate of the third fold is (0, 200), and the initial placing coordinate of the fourth fold is (0, 300).
After the information is calculated, the computer software generates JSON parameters together with the storage address of the media to be discounted on the target media playing control equipment and sends the JSON parameters out. Referring to fig. 6, fig. 6 is a schematic view of horizontal folding according to an embodiment of the present invention.
In fig. 6, each fold that the software has made to the user media has width and height attributes, the first fold has offset (X, Y) attributes, and each of these shorter folds with certain attributes is the discounted media. And generating a JSON format data packet by the protocol formed by the attributes and the user real media and sending the JSON format data packet.
In the embodiment, the media playing parameters are generated by the target media playing control device, the target display screen and the relevant parameters of the media to be discounted, and are associated with the media to be discounted into the playing parameter data packet which is easy to analyze and generate, so that the transmission efficiency is improved, and meanwhile, the subsequent operation is facilitated.
[ second embodiment ]
The present embodiment provides a media processing device for executing the media processing method according to the first embodiment. Referring to fig. 7, fig. 7 is a block diagram of a media processing device according to an embodiment of the present invention, including:
the first acquisition module is used for acquiring the size of a loading area of the target media playing and controlling equipment;
the second acquisition module is used for acquiring the resolution of a target display screen, wherein the target display screen is carried by the target media playing and controlling device;
the third acquisition module is used for acquiring discount parameters;
the fourth acquisition module is used for acquiring the media to be discounted;
the parameter generation module is used for generating media playing parameters according to the size of the loading area of the target media playing control equipment, the size of the resolution of the target display screen, the size of the resolution of the media to be discounted and the discount parameters;
and the data packet output module is used for associating the media playing parameters with the media to be discounted to generate playing parameter data packets to be output for the target media playing control equipment to use.
Specifically, the packet output module includes:
the first calculating unit is used for calculating the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing and controlling device;
the second calculating unit is used for calculating the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and the data association generating unit is used for generating and outputting the playing parameter data packet according to the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution, so as to be used by the target media playing control device.
The media processing device provided by this embodiment can generate media playing parameters for the target media playing control device, the target display screen and the relevant parameters of the media to be discounted, and output the playing parameter data packet associated with the media to be discounted, so that the transmission efficiency is improved, and the subsequent operation is facilitated.
In this embodiment, the media processing apparatus may be implemented by upper computer software, and the target media playing and controlling device may be a playing box. The upper computer software can be server side software, computer side software or mobile phone side software.
In the following, the media processing device of the present invention will be described in detail by taking the upper computer software as the computer software and taking the super-long picture as the user media.
Referring to fig. 2, first, the right side "component attributes" of the main interface in fig. 2 are the acquiring modules, where the first acquiring module for acquiring the size of the loading area of the target media playing and controlling device is X, Y, W, H of the area (px) in fig. 2;
in fig. 2, "width and height of the actual display screen" is a second obtaining module, configured to obtain a resolution of the target display screen;
the right side of fig. 2, the "cutting direction and the first row offset" is a third obtaining module, which is used for obtaining the folding parameters;
in FIG. 2
The control is a fourth obtaining module and is used for obtaining the media to be discounted.
After the information is acquired, the computer software packages the information through the parameter generation module to generate media playing parameters; and then the data packet output module generates a JSON format data packet and sends the JSON format data packet after the media playing parameters are associated with the current media of the user.
Specifically, a first calculating unit in the data packet output module calculates the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing control device;
the second calculating unit calculates the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and the data association generating unit generates the playing parameter data packet to be output according to the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution, so as to be used by the target media playing control device.
The media processing method and the media processing device provided by the embodiment mainly generate media playing parameters through the target media playing control equipment, the target display screen and the related parameters of the media to be folded, and associate the media playing parameters with the media to be folded into a JSON format data packet which is easy to analyze and generate and output to the playing box.
[ third embodiment ]
Fig. 8 is a flowchart of a media playing control method according to an embodiment of the present invention, where fig. 8 is a flowchart of the media playing control method, and includes the following steps:
s21: acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, resolution of media to be played and discount information of the media to be played;
s22: acquiring a medium to be played according to the medium storage address;
s23: and performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and output the folding images for display.
Specifically, on the basis of the first embodiment, a JSON format data packet is received, and a media storage address, the size of the resolution of the media to be played, and discount information of the media to be played are analyzed; and acquiring the media to be played according to the storage address of the media to be discounted on the target media playing control equipment.
In this embodiment, the media to be played is the media to be discounted mentioned in the first and second embodiments.
Further, step S23 may include:
a) creating a temporary canvas according to the resolution of the media to be played, and drawing the media to be played on the temporary canvas frame by frame to obtain image frames;
b) and carrying out image interception operation on the image frame for multiple times according to the media discount information to be played so as to obtain a plurality of discount images.
Specifically, step b) may include:
reading the resolution of each fold in the media folding information to be played;
determining the intercepting position of each folded image in the image frame according to the resolution of each fold by taking the initial coordinate of the first folded image as a reference point;
and sequentially intercepting the frame image from the image frame according to the intercepting position to obtain a plurality of discounted images.
The media playing control method provided in this embodiment is mainly implemented on the target media playing control device, that is, implemented in the playing box mentioned in the above embodiment. Specifically, the user media playing control process is described herein as Android graphical rendering.
First, a temporary BitMap BitMap needs to be created, which is equivalent to creating a temporary canvas, and the width and the height of the temporary canvas are the same as those of real media of a user.
A temporary canvas is created at the playing box for simulating the real display effect of the user, and then the user media is drawn on the canvas frame by frame to obtain image frames. And after the drawing is finished, performing folding according to a folding algorithm to obtain a plurality of folding media, namely dividing the original super-long picture into a plurality of pictures with shorter lengths, and then cutting out the display content of the folding from the temporary BitMap BitMap according to the width and height attributes of each folding to obtain a plurality of folding images.
For example, the playing box analyzes that the folding direction is horizontal folding from the JSON parameter, the folding times are 4, the resolution of each fold is 400 × 100, and then the interception position of each fold in the image frame is determined according to the resolution of each fold by taking the initial coordinate of the first fold image as a reference point; and sequentially intercepting the frame image from the image frame to obtain four discounted images. Outputting a plurality of folded images to an LED display screen, and displaying the folded images to a formulated area by the LED display screen according to the initial placement position of each fold, wherein if the first folded image has deviation in the folding direction, the subsequent folded images sequentially deviate backwards by the same deviation amount according to the deviation amount of the first fold; and finally, the lamp panel is placed at the appointed LED display screen position by a user and spliced, and the super-long screen or super-high screen playing can be completed. Referring to fig. 6, the effect indication of the terminal play window at the lower left in fig. 6 is the final display effect indication of the multiple discounted images.
The media playing and controlling method provided by this embodiment is mainly implemented based on a discount algorithm, where the discount algorithm mainly refers to a technology that divides a media into any several sections in a discount manner in a horizontal direction or a vertical direction, but each section can still maintain an original display effect on a complete media.
[ fourth example ] A
On the basis of the third embodiment, step S23 further includes:
a1) carrying out special effect processing on the image frame to obtain an image frame after the special effect processing;
correspondingly, the performing image capturing operation on the image frame for multiple times according to the media discount information to be played to obtain the multiple discount images specifically comprises:
and performing image interception operation on the image frame after the special effect processing according to the media discount information to be played for multiple times.
In practical application, because some extra special effects may need to be added when the user real media are played, if a temporary canvas is not created, the special effects are directly applied to the finally folded canvas without any modification, and at the moment, the special effects are applied to the whole folded picture instead of each folded picture. Referring to fig. 9a to 9c, fig. 9a to 9c are media display effect diagrams provided by embodiments of the present invention. For example, if the user wants to display the effect shown in fig. 9a (say 1600 × 100), the user wants to add a special effect to the picture, and the picture can be slowly moved from left to right, i.e. displayed in the order of a-B-C-D, if a temporary canvas such as a BitMap which is consistent with the real width and height of the user media is not created, the picture is directly folded, and the special effect algorithm is not modified, and the special effect is directly added, then the overall wrong special effect (400 × 400 display area) of displaying the picture from left to right (such as fig. 9B) is generated, the display effect screen is first folded, the second fold is moved to the first fold, the third fold is moved to the right of the second fold, the fourth fold is moved to the right of the third fold, and the splicing operation obviously cannot achieve the effect desired by the user. In order to achieve the user display effect, a great deal of modification may be performed on the special effect algorithm applied to the media, and since the length and the width of the user media are uncertain later, the computer software cannot clearly know that the future media will be folded several times, which brings great difficulty to the modification of the special effect algorithm; further, the types of special effects desired by the user are various, and if the corresponding special effect algorithm needs to be modified every discount, it is not practical.
Therefore, a temporary canvas is created in the playing box to simulate the real display effect of the user, then drawing operations are performed, such as adding special effects, etc., the desired user effect is simulated in the playing box, and then the folding operation is performed on the user effect by using a folding algorithm, so that the correct special effect (400 × 400 display area) effect of displaying the picture from left to right as shown in fig. 9c is shown. Obviously, the effect that the client wants can be achieved by the first folding of the display effect screen, the second folding moving to the back of the first folding, the third folding moving to the right of the second folding, and the fourth folding moving to the right of the third folding and splicing.
Specifically, user media are drawn on a canvas frame by frame, a special effect is added once when each frame is drawn to obtain a plurality of image frames after special effect processing, and then image interception operation is carried out on the image frames after the special effect processing for a plurality of times according to discount information to obtain a plurality of discount images which are output in sequence.
In this embodiment, the discounting algorithm can not only realize the display of the ultra-long and ultra-high media such as characters and pictures, but also realize the display of other media whose essence is formed by fast playing one frame of picture.
The media playing and controlling method provided by the embodiment can enable the playing effect of the program to be smooth and uniform, the program is not damaged, meanwhile, a user does not need to spend a great deal of energy to adapt to the special effect algorithm, and the efficiency is improved.
[ fifth embodiment ]
This embodiment provides a media playing control apparatus, configured to perform the media playing control method according to the third embodiment and the fourth embodiment, including:
the parameter acquisition module is used for acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, the resolution of media to be played and discount information of the media to be played;
the media acquisition module is used for acquiring media to be played according to the media storage address;
and the folding processing module is used for folding the media to be played frame by frame according to the resolution of the media to be played and the folding information of the media to be played so as to obtain a plurality of folding images and output the folding images for display.
In this embodiment, the media playing control device may be a playing box.
Specifically, please refer to fig. 10, fig. 10 is a block diagram of a media playing control device according to an embodiment of the present invention, in which the discount processing module includes:
the drawing unit is used for creating a temporary canvas according to the resolution of the media to be played and drawing the media to be played on the temporary canvas frame by frame to obtain image frames;
the intercepting unit is used for carrying out image intercepting operation on the image frame for multiple times according to the media discount information to be played so as to obtain a plurality of discount images; for example, it is used in particular for: reading the resolution of each fold in the media folding information to be played; determining the intercepting position of each folded image in the image frame according to the resolution of each fold by taking the initial coordinate of the first folded image as a reference point; and sequentially intercepting the frame image from the image frame according to the intercepting position to obtain a plurality of discounted images.
Referring to fig. 11, fig. 11 is another structural block diagram of a media playing control device according to an embodiment of the present invention, where the discount processing module further includes:
the special effect unit is used for carrying out special effect processing on the image frame to obtain an image frame after the special effect processing;
correspondingly, the intercepting unit is specifically configured to: and performing image interception operation on the image frames after the special effect processing for multiple times according to the media discount information to be played so as to obtain a plurality of discount images.
[ sixth embodiment ]
On the basis of the first, third and fourth embodiments, the obtained media to be played is an ultra-high picture, the folding direction is vertical folding, and the offset coordinates (Xn, Yn) of each folding and the resolution of each folding, i.e., the width Wn and the height Hn, are calculated at the same time, so that the purpose of displaying the ultra-high media on a playing device can be achieved. Wherein, the width Wn and the height Hn of each fold and the real media length W0 and the real height H0 of the user satisfy that: w0 ═ W1 ═ W2 ═ Wn, H0 ═ H1+ H2+. + Hn. Referring to fig. 12, fig. 12 is a diagram illustrating display effects of the ultra-high media after being processed and controlled according to the embodiment of the invention.
[ seventh example ]
On the basis of the first embodiment, the third embodiment, the fourth embodiment and the sixth embodiment, the first fold is subjected to certain offset in the folding direction, and each fold of media behind follows the offset of the first fold, so that offset blank is realized on a final display screen, and a user can add other contents to the offset blank. Referring to fig. 13, fig. 13 is a diagram illustrating a display effect after playing control of media processing with a certain offset according to an embodiment of the present invention. In the figure, the offset of the first column in the right component attribute is 200, and the display effect that no media picture is displayed at the upper left appears, and the user can add other contents at the position.
[ eighth embodiment ]
The present embodiment provides a display system, which includes a media playing control device and an LED display screen carried by the media playing device, wherein the media playing control device is integrated with the media playing control apparatus according to the fifth embodiment. The media play control device may be a play box. Referring to fig. 14, fig. 14 is a block diagram of a display system according to an embodiment of the present invention.
When a user needs to play a media in the display system, the media are added into an upper computer (such as a computer) firstly, then the upper computer searches for the playing box through UDP (user Datagram protocol), communication connection is established, and after the upper computer and the playing box local area network are established, the user can add the user ultra-long or ultra-high media to the upper computer. In this embodiment, the communication mode between the play box terminal and the upper computer may be TCP connection, or websocket, http, or the like. After the upper computer is connected with the playing box, the playing parameters and the storage address of the media to be played are sent to the playing box, the playing box analyzes the playing parameters, then the media are discounted according to the playing parameters, and the obtained discounted media are output to the LED display screen, so that the ultra-long media or the ultra-high media of a user are displayed on one display screen.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (16)
1. A method for media processing, comprising:
acquiring the size of a loading area of target media playing and controlling equipment;
acquiring the resolution of a target display screen, wherein the target display screen is carried by the target media playing and controlling device;
obtaining discount parameters;
acquiring a medium to be discounted;
generating media playing parameters according to the size of the loading area of the target media playing control equipment, the size of the resolution of the target display screen, the size of the resolution of the media to be discounted and the discount parameters;
and associating the media playing parameters with the media to be discounted to generate a playing parameter data packet for outputting so as to be used by the target media playing control equipment.
2. The media processing method of claim 1, wherein the discount parameter includes a discount direction and an offset of the first discount in the discount direction, wherein the discount direction is selected from one of a horizontal discount and a vertical discount.
3. The media processing method according to claim 1, wherein the playback parameter packet is a JSON format packet.
4. The media processing method of claim 1, wherein the playback parameter data packet comprises: the media to be discounted is stored in the target media playing control device, the resolution of the media to be discounted is large, and the media to be discounted is discount information, wherein the discount information of the media to be discounted comprises discount times, discount directions, initial coordinates of each discount and resolution.
5. The media processing method of claim 4, wherein associating the media playing parameter with the media to be discounted to generate a playing parameter data packet for output to the target media playing control device comprises:
calculating the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing and controlling device;
calculating the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and generating and outputting the playing parameter data packet according to the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution, so as to be used by the target media playing control device.
6. A media processing apparatus for performing the media processing method of any one of claims 1 to 5, and comprising:
the first acquisition module is used for acquiring the size of a loading area of the target media playing and controlling equipment;
the second acquisition module is used for acquiring the resolution of a target display screen, wherein the target display screen is carried by the target media playing and controlling device;
the third acquisition module is used for acquiring discount parameters;
the fourth acquisition module is used for acquiring the media to be discounted;
the parameter generation module is used for generating media playing parameters according to the size of the loading area of the target media playing control equipment, the size of the resolution of the target display screen, the size of the resolution of the media to be discounted and the discount parameters;
and the data packet output module is used for associating the media playing parameters with the media to be discounted to generate playing parameter data packets to be output for the target media playing control equipment to use.
7. The media processing device of claim 6, wherein the packet output module comprises:
the first calculating unit is used for calculating the discount times according to the resolution of the media to be discounted and the size of the loading area of the target media playing and controlling device;
the second calculating unit is used for calculating the initial coordinate and the resolution of each fold according to the folding direction, the folding times and the resolution of the media to be folded;
and the data association generating unit is used for generating and outputting the playing parameter data packet by using the storage address of the media to be discounted on the target media playing control device, the discount times, the resolution of the media to be discounted, the discount direction, the initial coordinate of each discount and the resolution, so as to be used by the target media playing control device.
8. A method for media playback, comprising:
acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, resolution of media to be played and discount information of the media to be played;
acquiring a medium to be played according to the medium storage address;
and performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and output the folding images for display.
9. The method as claimed in claim 8, wherein the step of performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and outputting the folding images for display comprises:
creating a temporary canvas according to the resolution of the media to be played, and drawing the media to be played on the temporary canvas frame by frame to obtain image frames;
and carrying out image interception operation on the image frame for multiple times according to the media discount information to be played so as to obtain a plurality of discount images.
10. The media playing control method according to claim 9, wherein performing a plurality of image capturing operations on the image frame according to the media discount information to be played to obtain the plurality of discount images comprises:
reading the resolution of each fold in the media folding information to be played;
determining the intercepting position of each folded image in the image frame according to the resolution of each fold by taking the initial coordinate of the first folded image as a reference point;
and sequentially intercepting the frame image from the image frame according to the intercepting position to obtain a plurality of discounted images.
11. The method as claimed in claim 9, wherein the step of performing frame-by-frame folding processing on the media to be played according to the resolution of the media to be played and the folding information of the media to be played to obtain a plurality of folding images and outputting the folding images for display further comprises:
carrying out special effect processing on the image frame to obtain an image frame after the special effect processing;
correspondingly, the performing image capturing operation on the image frame for multiple times according to the media discount information to be played to obtain the multiple discount images specifically comprises:
and performing image interception operation on the image frame after the special effect processing according to the media discount information to be played for multiple times.
12. A media playback device, comprising:
the parameter acquisition module is used for acquiring media playing parameters, wherein the media playing parameters comprise media storage addresses, the resolution of media to be played and discount information of the media to be played;
the media acquisition module is used for acquiring media to be played according to the media storage address;
and the folding processing module is used for folding the media to be played frame by frame according to the resolution of the media to be played and the folding information of the media to be played so as to obtain a plurality of folding images and output the folding images for display.
13. The media play control device of claim 12, wherein the discount processing module comprises:
the drawing unit is used for creating a temporary canvas according to the resolution of the media to be played and drawing the media to be played on the temporary canvas frame by frame to obtain image frames;
and the intercepting unit is used for carrying out image intercepting operation on the image frame for multiple times according to the media discount information to be played so as to obtain a plurality of discount images.
14. The media playback device of claim 13, wherein the truncating unit is specifically configured to:
reading the resolution of each fold in the media folding information to be played;
determining the intercepting position of each folded image in the image frame according to the resolution of each fold by taking the initial coordinate of the first folded image as a reference point;
and sequentially intercepting the frame image from the image frame according to the intercepting position to obtain a plurality of discounted images.
15. The media play control device of claim 13, wherein the discount processing module further comprises:
the special effect unit is used for carrying out special effect processing on the image frame to obtain an image frame after the special effect processing;
correspondingly, the intercepting unit is specifically configured to: and performing image interception operation on the image frame after the special effect processing according to the media discount information to be played for multiple times.
16. A display system, comprising a media playing control device and an LED display screen carried by the media playing device, wherein the media playing control device is integrated with the media playing control apparatus as claimed in any one of claims 12 to 15.
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