CN115914770A - Synchronous display method, device and system for distributed multi-device rolling captions - Google Patents
Synchronous display method, device and system for distributed multi-device rolling captions Download PDFInfo
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Abstract
The invention discloses a synchronous display method, equipment and a system of distributed multi-equipment rolling captions, wherein the method comprises the steps of receiving and analyzing a caption display signaling of the rolling captions to obtain caption information; rendering and displaying the text content by the main output box device according to the coordinate position, performing coordinate moving rendering on the text content according to the coordinate position and a moving pixel appointed by a user to obtain a current moving sequence number, and informing each slave output box device of the current moving sequence number in real time through a preset method; the slave output box equipment renders and displays the text content according to the coordinate position, monitors and receives the mobile serial number sent by the current master output box equipment in real time, carries out coordinate synchronous analysis and calculation according to the coordinate position, the mobile pixel appointed by the user and the mobile serial number, obtains the current coordinate position, and renders and synchronously displays the text content according to the current coordinate position. According to the embodiment, the synchronous display of the roll captions across the equipment is realized, and the output display effect of the roll captions is improved.
Description
Technical Field
The invention relates to the field of rolling caption display, in particular to a synchronous display method, equipment and a system for distributed multi-equipment rolling captions.
Background
The method is characterized in that a plurality of output box devices are often spliced and displayed in large-screen display of an exhibition hall, a large-scale report hall and a command center, under a distributed architecture, the output box devices are spliced and output to a large screen, at the moment, a user adds a rolling caption to the output box devices, the output box devices need to simultaneously display the same rolling caption, the positions of caption movement among the output box devices need to be ensured to be the same, the same moving caption is simultaneously displayed among the output boxes, the moving captions of the output boxes are synchronized, and the moving captions seen by the user are enabled to be seamless and synchronously moved.
In the prior art, subtitles are rendered and rolled directly on a large screen, the roll subtitles are output in a distributed cross-device mode, when the roll subtitles move to a device splicing position, the roll subtitles move in each output box device due to direct rendering display, an asynchronous phenomenon exists, after one distributed output box device is restarted, the roll subtitles cannot be synchronously displayed on the output box device, and the output display effect of the roll subtitles is poor.
Disclosure of Invention
The invention provides a method, a device and a system for synchronously displaying distributed multi-device rolling captions, which realize the synchronous display of the rolling captions across devices and improve the output display effect of the rolling captions.
In order to solve the above technical problem, an embodiment of the present invention provides a method for synchronously displaying a distributed multi-device rolling caption, including:
receiving and analyzing a caption display signaling of the rolling caption to obtain caption information; the display caption signaling is sent to a plurality of output box devices by a switch under a distributed architecture; the caption information comprises character content, a first coordinate position, a user-specified moving pixel and equipment master-slave information;
if the current output box equipment is the main output box equipment, rendering and displaying the text content according to the first coordinate position, performing coordinate moving rendering on the text content according to the first coordinate position and a moving pixel appointed by a user to obtain a current moving sequence number, and notifying each slave output box equipment of the current moving sequence number in real time through a preset method;
if the current output box device is the slave output box device, rendering and displaying the text content according to the first coordinate position, monitoring and receiving a second moving sequence number sent by the current master output box device in real time, performing coordinate synchronous analysis and calculation according to the first coordinate position, the user-specified moving pixels and the second moving sequence number, obtaining the current second coordinate position, and rendering and synchronously displaying the text content according to the current second coordinate position.
According to the embodiment of the invention, a plurality of distributed output box devices are spliced and output to a large screen, a piece of rolling caption with text content and a coordinate position (a first coordinate position) is added to the output box devices on a web client, a plurality of output box devices under a distributed architecture receive a caption display signaling of the rolling caption, a caption program in the output box devices receives the caption display signaling and analyzes the text content to be rendered from the signaling, the coordinate position (the first coordinate position) of the text display and the current output box device are main output box devices or auxiliary output box devices, if the current output box device is the main output box device, the text content is rendered and displayed according to the first coordinate position, the text content is subjected to coordinate moving rendering according to the first coordinate position and a moving pixel designated by a user to obtain a current moving sequence number, and the current moving sequence number is notified to each auxiliary output box device in real time through a preset method; if the current output box device is the slave output box device, rendering and displaying the text content according to the first coordinate position, monitoring and receiving a second moving sequence number sent by the current master output box device in real time, performing coordinate synchronous analysis and calculation according to the first coordinate position, the user-specified moving pixels and the second moving sequence number, obtaining the current second coordinate position, and rendering and synchronously displaying the text content according to the current second coordinate position. The master and slave devices respectively execute corresponding rendering and displaying actions, the movement of the master output box device is taken as a main part, the slave output box device is informed of the moving coordinate information, the slave output box device performs coordinate synchronous analysis and calculation, and rendering and synchronous display are performed at the corresponding coordinate position (second coordinate position), so that synchronous display of the roll captions on the multiple output box devices is realized, cross-device synchronous and seamless display is realized, the output and display effect of the roll captions is improved, and the user experience is improved.
As a preferred scheme, rendering and displaying the text content according to the first coordinate position specifically includes:
if the current output box device is a main output box device, determining a first caption initial position according to the first coordinate position, and rendering and displaying the text content according to the first caption initial position;
and if the current output box device is the slave output box device, determining a second caption initial position according to the first coordinate position, and rendering and displaying the text content according to the second caption initial position.
As a preferred scheme, according to the first coordinate position and a moving pixel specified by a user, performing coordinate moving rendering on the text content to obtain a current moving sequence number, specifically:
calculating a current third coordinate position according to the initial position of the first caption, the mobile pixel appointed by the user and the current mobile serial number; wherein, the initial value of the current mobile serial number is 1;
moving the text content to the current third coordinate position leftwards, and rendering the text content; wherein, the text content moves to the left once, and the current moving sequence number is added with 1 on the basis of the last moving sequence number. As a preferred scheme, a current third coordinate position is calculated according to the first caption starting position, the user-specified moving pixel and the current moving sequence number, and the formula is as follows:
Sz＝X1-(pix*i1)
and Sz is the current third coordinate position, X1 is the initial position of the first caption, pix is the pixel of the user specified movement, and i1 is the current movement serial number.
As a preferred scheme, the current moving sequence number is notified to each slave output box device in real time by a preset method, which specifically comprises the following steps:
and when the text content moves once, determining the current moving sequence number according to the moving sequence number when the current third coordinate position is calculated, broadcasting through a UDP protocol, and informing each slave output box device of the current moving sequence number.
As a preferred scheme, according to the first coordinate position, the user-specified moving pixel and the second moving sequence number, performing coordinate synchronization analysis calculation to obtain a current second coordinate position, specifically:
calculating the current second coordinate position according to the second caption initial position, the user-specified moving pixel and the second moving sequence number, wherein the formula is as follows:
Sc＝X2-(pix*i2)
wherein Sc is the current second coordinate position, X2 is the second caption start position, pix is the user-specified moving pixel, and i2 is the second moving sequence number.
By implementing the embodiment of the invention, the same rolling caption is simultaneously output on the distributed output box equipment, synchronous display is carried out on the output box equipment when the rolling caption moves to the splicing position of the distributed output box equipment, if the output box equipment is restarted, the current coordinate position is calculated through the starting position of the caption, the moving pixel designated by a user and the moving sequence number, and the caption which is started on the display or synchronization is realized.
In order to solve the same technical problem, an embodiment of the present invention further provides a distributed multi-output cartridge device, including: the caption signaling module, the main output box module and the slave output box module;
the caption signaling module is used for receiving and analyzing a caption display signaling of the rolling caption to obtain caption information; the display caption signaling is sent to a plurality of output box devices by a switch under a distributed architecture; the caption information comprises character content, a first coordinate position, a user-specified moving pixel and equipment master-slave information;
the main output box module is used for rendering and displaying the text content according to the first coordinate position if the current output box equipment is the main output box equipment, performing coordinate moving rendering on the text content according to the first coordinate position and a moving pixel appointed by a user to obtain a current moving sequence number, and notifying each slave output box equipment of the current moving sequence number in real time through a preset method;
the slave output box module is used for rendering and displaying the text content according to the first coordinate position if the current output box device is the slave output box device, monitoring and receiving a second moving sequence number sent by the current master output box device in real time, performing coordinate synchronous analysis and calculation according to the first coordinate position, the user-specified moving pixel and the second moving sequence number, obtaining a current second coordinate position, and rendering and synchronously displaying the text content according to the current second coordinate position.
Preferably, the main output cartridge module includes: the system comprises an initial main rendering display unit, a mobile display unit and a notification unit;
the initial main rendering display unit is used for determining a first subtitle starting position according to the first coordinate position, and rendering and displaying the text content according to the first subtitle starting position;
the mobile display unit is used for calculating a current third coordinate position according to the first caption initial position, the user-specified mobile pixel and the current mobile serial number; wherein, the initial value of the current mobile serial number is 1; moving the text content to the current third coordinate position leftwards, and rendering the text content; the text content is moved to the left once, and the current moving serial number is added with 1 on the basis of the previous moving serial number;
and the notification unit is used for determining the current moving sequence number according to the moving sequence number when the current third coordinate position is calculated when the text content moves once, broadcasting through a UDP protocol, and notifying each slave output box device of the current moving sequence number.
Preferably, the slave output cartridge module includes: the system comprises an initial slave rendering display unit, a monitoring unit, a synchronous calculation unit and a synchronous display unit;
the initial slave rendering display unit is used for determining a second caption initial position according to the first coordinate position, and rendering and displaying the text content according to the second caption initial position;
the monitoring unit is used for monitoring and receiving a second mobile serial number sent by the current main output box equipment in real time;
the synchronous calculation unit is used for calculating the current second coordinate position according to the second caption initial position, the user-specified moving pixel and the second moving sequence number, and the formula is as follows: sc = X2- (pix i 2); wherein Sc is the current second coordinate position, X2 is the second caption start position, pix is the user-specified moving pixel, and i2 is the second moving sequence number.
And the synchronous display unit is used for rendering and synchronously displaying the text content according to the current second coordinate position.
In order to solve the same technical problem, an embodiment of the present invention further provides a synchronous display system for distributed multi-device roll titles, including a server, a switch, a client, an input computer signal source, an input box device, a large display screen, and a plurality of output box devices; wherein, a plurality of output box devices execute the synchronous display method of the distributed multi-device rolling captions;
wherein, the connection of equipment is as follows: the server is connected with the switch, the client is connected with the switch, the input box equipment is connected with the switch, the output box equipment is connected with the switch, the input box equipment is connected with the input computer signal source, and the output box equipment is connected with the large display screen.
Drawings
FIG. 1: the invention provides a flow diagram of an embodiment of a synchronous display method of distributed multi-device rolling captions;
FIG. 2 is a schematic diagram: the invention provides a broadcast synchronous display caption signaling diagram of an embodiment of a synchronous display method of distributed multi-equipment rolling captions;
FIG. 3: the subtitle coordinate initial position diagram is an embodiment of the synchronous display method of the distributed multi-device rolling subtitles provided by the invention;
FIG. 4: the invention provides a structural schematic diagram of an embodiment of a distributed multi-output box device;
FIG. 5 is a schematic view of: the invention provides a connection schematic diagram of an embodiment of a distributed multi-device rolling caption synchronous display system.
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.
Example one
Fig. 1 is a schematic flowchart of a method for synchronously displaying distributed multi-device roll titles according to an embodiment of the present invention. The synchronous display method is suitable for a plurality of output box devices under a distributed architecture, synchronous display is performed on the plurality of output box devices through the rolling subtitles, the output display effect of the rolling subtitles is improved, and user experience is improved. The synchronous display method comprises the following steps of 101 to 103:
step 101: receiving and analyzing a caption display signaling of the rolling caption to obtain caption information; the caption display signaling is sent to a plurality of output box devices by a switch under a distributed architecture; the subtitle information comprises text content, a first coordinate position, user-specified moving pixels and device master-slave information.
In this embodiment, when a plurality of output box devices under a distributed architecture are spliced and output to a large screen, a text, moving pixels, and coordinate roll captions are added to an exchanger on a web client, user information is converted into caption display signaling through the exchanger and input into the output box devices, caption programs in the output box devices receive the caption display signaling and analyze the caption information from the caption display signaling, the caption information includes text to be rendered (text content), a coordinate position of text display (a first coordinate position), a user-specified moving pixel, and device master-slave information, and whether the current output box device is a master output box device or a slave output box device can be determined through the device master-slave information, so as to determine the master-slave output box device. The synchronous display is performed in a broadcast manner, and the synchronous display caption signaling is broadcast, as shown in fig. 2, the large-screen display is spliced by a plurality of distributed output box devices, the rightmost output box device is the master, and the rest output box devices are all slaves, and are sent to each output box device in a broadcast manner.
Step 102: if the current output box device is the master output box device, rendering and displaying the text content according to the first coordinate position, performing coordinate moving rendering on the text content according to the first coordinate position and a moving pixel appointed by a user to obtain a current moving sequence number, and notifying each slave output box device of the current moving sequence number in real time through a preset method.
Optionally, step 102 specifically includes step 1021 to step 1023, and each step specifically includes the following steps:
step 1021: and if the current output box equipment is the main output box equipment, determining a first subtitle initial position according to the first coordinate position, and rendering and displaying the text content according to the first subtitle initial position.
In this embodiment, in practical applications, a large-screen display is implemented by a device that will involve multiple output box devices, including 1 master output box device and multiple slave output box devices, as an example in this embodiment, 1 master output box device and 2 slave output box devices are described, the large-screen display is implemented by splicing output pictures by three output boxes, the three output box devices are spliced, a subtitle coordinate starting position is, as shown in fig. 3, a resolution width and a height of a single output box are 1920x1080, a resolution of a large screen is 5760x1080, after a client adds a scroll subtitle, each output box receives a coordinate position (a first coordinate position), which is also a starting position of a subtitle on each output box device, the subtitle starting position is determined according to the first coordinate position, and the subtitle starting position is a distance from a starting point of an output box device to a large-screen end point, for example, the subtitle starting position of a subtitle 1 is 5760, the starting position of a slave output box 2 is 3840, and the subtitle starting position of a master output box device (a subtitle starting position) is 1920. And determining a first caption initial position of the main output box device 3, and then rendering and displaying caption text contents according to the first caption initial position.
It should be noted that, during rendering, the model is first read from the hard disk, the CPU classifies the font information and then sends the font information to the GPU, and the GPU processes the font information into a font visible on the screen at any time, but there is no texture but only a wireframe. After the CPU calculates the model, the GPU puts the model data into a display memory, and the display card is made of the model sticker material and gives color to the model. And the CPU correspondingly acquires the information of the polygon from the video memory. The CPU then calculates the outline of the shadow created after illumination. After the CPU calculates, the work of the display card is carried out again, that is, the shadow is filled with the dark color. And the data exchange between the CPU and the GPU is completed in a cycle, and the rendering and the display of the text content are realized. And one group in the distribution type is composed of one or more output boxes, only one rolling caption can be added in one group, and when the caption of the main output box is completely rendered, the main output box starts to move leftwards, namely all the output boxes in the same group re-render the caption after the positions required to be moved by the output boxes are calculated.
Step 1022: according to the first coordinate position and the moving pixel appointed by the user, performing coordinate moving rendering on the text content to obtain a current moving sequence number, specifically: calculating a current third coordinate position according to the initial position of the first caption, the moving pixel appointed by the user and the current moving sequence number; wherein, the initial value of the current mobile serial number is 1; moving the text content to the current third coordinate position leftwards, and rendering the text content; wherein, the text content moves to the left once, and the current moving sequence number is added with 1 on the basis of the last moving sequence number.
Optionally, the current third coordinate position is calculated according to the first caption initial position, the user-specified moving pixel and the current moving sequence number, and the formula is as follows:
Sz＝X1-(pix*i1)
wherein Sz is the current third coordinate position, X1 is the first caption starting position, pix is the user-specified moving pixel, and i1 is the current moving sequence number.
Step 1023: and when the text content moves once, determining the current moving sequence number according to the moving sequence number when the current third coordinate position is calculated, broadcasting through a UDP protocol, and informing each slave output box device of the current moving sequence number.
In this embodiment, after rendering the subtitle text, the master output box device starts to move the coordinates to the left, the user specifies a moving pixel and a current moving sequence number to obtain how many pixels have been moved, so as to obtain a moved pixel, a current position to be displayed (a current third coordinate position) is obtained by starting an X coordinate (a first subtitle start position) -the moved pixel, and at the same time, coordinate information containing the current moving sequence number is broadcasted to other slave output boxes, the coordinate information from the master device including the moving sequence number is received in monitoring of each slave output box device, and the moving sequence number is accumulated by 1 every time, so as to obtain a current third coordinate position, at this time, the display needs to be re-rendered, otherwise, the user cannot move the subtitle on the large screen at all, and the rendering display is performed according to the current third coordinate position, so as to form a dynamic rolling subtitle which continuously moves to the left.
It should be noted that, in the moving process of the moving caption, how many pixels are moved each time, for example, if the user specifies that the moving pixel is 3 pixels, the moving caption moves 3 pixels each time, and the larger the pixel is, the faster the moving speed is.
Step 103: if the current output box device is the slave output box device, rendering and displaying the text content according to the first coordinate position, monitoring and receiving a second moving sequence number sent by the current master output box device in real time, performing coordinate synchronous analysis and calculation according to the first coordinate position, the user-specified moving pixels and the second moving sequence number, obtaining the current second coordinate position, and rendering and synchronously displaying the text content according to the current second coordinate position.
Optionally, step 103 specifically includes steps 1031 to 1034, and each step is specifically as follows:
step 1031: and if the current output box equipment is the slave output box equipment, determining a second subtitle starting position according to the first coordinate position, and rendering and displaying the text content according to the second subtitle starting position.
In the present embodiment, as shown in fig. 3, the subtitle start position from the output box device 1 is 5760, and the subtitle start position from the output box 2 is 3840. And determining the subtitle starting position (second subtitle starting position) of the slave output box devices, and rendering and displaying the subtitle text content according to the second subtitle starting position of each slave output box device.
Step 1032: and monitoring and receiving the second moving sequence number sent by the current main output box equipment in real time.
In this embodiment, the master output box device broadcasts the move sequence number to the other slave output box devices every time the subtitle moves, and each slave output box device monitors and receives the coordinate information broadcast by the master output box device, and analyzes the move sequence number (second move sequence number) from the master output box device.
Step 1033: calculating the current second coordinate position according to the second caption initial position, the user-specified moving pixel and the second moving sequence number, wherein the formula is as follows:
Sc＝X2-(*i2)
wherein Sc is the current second coordinate position, X2 is the second caption start position, pix is the user-specified moving pixel, and i2 is the second moving sequence number.
Step 1034: and rendering and synchronously displaying the text content according to the current second coordinate position.
In this embodiment, the subtitle coordinate position to which the current slave output box device needs to move, that is, the current second coordinate position, is calculated, and then the subtitle text content is rendered and displayed again according to the current second coordinate position, so that the main output box devices displaying the subtitles of the slave output box devices move synchronously to form synchronous roll subtitles, and thus the purpose of synchronously displaying the roll subtitles by splicing a plurality of distributed output box devices is achieved. Even when the output box device is restarted, the caption signaling is received again and the started roll captions are synchronized again, and the main/auxiliary output box device automatically synchronizes the started roll captions after being restarted. The large screen is spliced and displayed by a plurality of output box devices, so that the same mobile subtitle is displayed among a plurality of output boxes simultaneously, and the mobile subtitles seen by a user can be ensured to move seamlessly by synchronizing the mobile subtitles of the output boxes.
By implementing the embodiment of the invention, the master device and the slave device respectively execute the corresponding rendering display actions, the slave output box device is informed of the moving coordinate information by mainly taking the movement of the master output box device as a main part, and the slave output box device carries out rendering and synchronous display at the corresponding coordinate position (second coordinate position) through coordinate synchronous analysis and calculation, so that the synchronous display of the roll captions on a plurality of output box devices is realized, the cross-device synchronous and seamless display is realized, the output display effect of the roll captions is improved, and the user experience is improved.
Example two
Correspondingly, referring to fig. 4, fig. 4 is a schematic structural diagram of a second embodiment of the distributed multi-output cartridge device provided by the present invention. As shown in fig. 4, a distributed multi-output box device includes a subtitle signaling module 401, a master output box module 402, and a slave output box module 403;
the caption signaling module 401 is configured to receive and parse a caption display signaling of a rolling caption to obtain caption information; the display caption signaling is sent to a plurality of output box devices by a switch under a distributed architecture; the subtitle information includes text content, a first coordinate position, user-specified moving pixels, and device master-slave information.
The master output box module 402 is configured to render and display text content according to the first coordinate position if the current output box device is the master output box device, perform coordinate moving rendering on the text content according to the first coordinate position and a moving pixel specified by a user to obtain a current moving sequence number, and notify each slave output box device of the current moving sequence number in real time through a preset method.
The primary output cartridge module 402 includes: an initial main rendering display unit 4021, a mobile display unit 4022, and a notification unit 4023.
The initial main rendering and displaying unit 4021 is configured to determine a first subtitle start position according to the first coordinate position, and render and display text content according to the first subtitle start position.
The mobile display unit 4022 is configured to calculate a current third coordinate position according to the first subtitle start position, a mobile pixel specified by the user, and a current mobile serial number; wherein, the initial value of the current mobile serial number is 1; moving the text content to the current third coordinate position leftwards, and rendering the text content; wherein, the text content moves to the left once, and the current moving sequence number is added with 1 on the basis of the last moving sequence number.
The notifying unit 4023 is configured to determine a current movement number according to the movement number obtained by calculating the current third coordinate position, broadcast the current movement number through the UDP protocol, and notify each slave output cartridge device of the current movement number every time the text content moves.
The slave output box module 403 is configured to render and display the text content according to the first coordinate position if the current output box device is a slave output box device, monitor and receive a second mobile serial number sent by the current master output box device in real time, perform coordinate synchronous analysis and calculation according to the first coordinate position, a mobile pixel specified by a user, and the second mobile serial number, obtain a current second coordinate position, and render and synchronously display the text content according to the current second coordinate position.
The slave output cartridge module 403 includes: a slave rendering display unit 4031, a listening unit 4032, a synchronization calculation unit 4033 and a synchronization display unit 4034 are initially provided.
The initial slave rendering and displaying unit 4031 is configured to determine a second subtitle start position according to the first coordinate position, and render and display the text content according to the second subtitle start position.
The monitoring unit 4032 is configured to monitor and receive the second moving sequence number sent by the current primary output box device in real time.
The synchronous calculation unit 4033 is configured to calculate the current second coordinate position according to the second subtitle start position, the user-specified moving pixel, and the second moving sequence number, where a formula is: sc = X2- (pix i 2); wherein Sc is the current second coordinate position, X2 is the second caption start position, pix is the user-specified moving pixel, and i2 is the second moving sequence number.
The synchronous display unit 4034 is used for rendering and synchronously displaying the text content according to the current second coordinate position.
By implementing the embodiment of the invention, the same roll caption is output on each distributed output box device simultaneously, so that the problem that the roll caption moves to the splicing position of the distributed output box devices and is not synchronous with the naked eye is solved, and the caption which is started on the display or synchronization can not be displayed after the output box devices are restarted.
EXAMPLE III
Correspondingly, referring to fig. 5, fig. 5 is a connection schematic diagram of a third embodiment of the synchronous display system of distributed multi-device roll titles provided by the present invention. As shown in fig. 5, the synchronous display system of distributed multi-device roll titles includes a server, a switch, a client, an input computer signal source, an input box device, a large display screen, and a plurality of output box devices; wherein, a plurality of output box devices execute the synchronous display method of the distributed multi-device rolling captions;
wherein, the connection of equipment is as follows: the server is connected with the switch, the client is connected with the switch, the input box equipment is connected with the switch, the output box equipment is connected with the switch, the input box equipment is connected with the input computer signal source, and the output box equipment is connected with the large display screen.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. A method for synchronously displaying distributed multi-device roll titles is characterized by comprising the following steps:
receiving and analyzing a caption display signaling of the rolling caption to obtain caption information; the display caption signaling is sent to a plurality of output box devices by a switch under a distributed architecture; the subtitle information comprises character content, a first coordinate position, a user-specified moving pixel and equipment master-slave information;
if the current output box equipment is main output box equipment, rendering and displaying the text content according to the first coordinate position, performing coordinate moving rendering on the text content according to the first coordinate position and the moving pixel appointed by the user to obtain a current moving sequence number, and notifying each slave output box equipment of the current moving sequence number in real time through a preset method;
and if the current output box equipment is the slave output box equipment, rendering and displaying the text content according to the first coordinate position, monitoring and receiving a second mobile serial number sent by the current master output box equipment in real time, carrying out coordinate synchronous analysis and calculation according to the first coordinate position, the mobile pixel appointed by the user and the second mobile serial number to obtain a current second coordinate position, and rendering and synchronously displaying the text content according to the current second coordinate position.
2. The method for synchronously displaying distributed multi-device roll titles according to claim 1, wherein the rendering and displaying of the text content according to the first coordinate position specifically comprises:
if the current output box device is the main output box device, determining a first caption initial position according to the first coordinate position, and rendering and displaying the text content according to the first caption initial position;
and if the current output box device is the slave output box device, determining a second subtitle starting position according to the first coordinate position, and rendering and displaying the text content according to the second subtitle starting position.
3. The method for synchronously displaying distributed multi-device roll titles according to claim 2, wherein the coordinate moving rendering is performed on the text content according to the first coordinate position and the moving pixel designated by the user, so as to obtain a current moving sequence number, specifically:
calculating a current third coordinate position according to the initial position of the first caption, the moving pixel appointed by the user and the current moving sequence number; wherein, the initial value of the current mobile serial number is 1;
moving the text content to the left to the current third coordinate position, and rendering the text content; and the text content is moved once to the left, and the current moving sequence number is added with 1 on the basis of the last moving sequence number.
4. The method for synchronously displaying distributed multi-device roll titles according to claim 3, wherein said calculating a current third coordinate position according to said first title start position, a user-specified moving pixel and said current moving sequence number has the formula:
Sz＝X1-(*i1)
wherein Sz is the current third coordinate position, X1 is the first caption initial position, pix is the user-specified moving pixel, and i1 is the current moving sequence number.
5. The method for synchronously displaying the distributed multi-device roll titles according to claim 3, wherein the notifying of the current movement sequence number to each slave output box device in real time by a preset method specifically comprises:
and when the text content moves once, determining the current moving sequence number according to the moving sequence number when the current third coordinate position is calculated, broadcasting through a UDP protocol, and informing each slave output box device of the current moving sequence number.
6. The method for synchronously displaying the distributed multi-device roll titles according to claim 2, wherein the performing a coordinate synchronization analysis calculation according to the first coordinate position, the user-specified moving pixel and the second moving sequence number to obtain a current second coordinate position specifically comprises:
calculating the current second coordinate position according to the second caption initial position, the user-specified moving pixel and the second moving sequence number, wherein the formula is as follows:
Sc＝X2-(*i2)
wherein Sc is the current second coordinate position, X2 is the second subtitle start position, pix is the user-specified moving pixel, and i2 is the second moving sequence number.
7. A distributed multi-output cartridge device, comprising: the caption signaling module, the main output box module and the slave output box module;
the caption signaling module is used for receiving and analyzing a caption display signaling of a rolling caption to obtain caption information; the display caption signaling is sent to a plurality of output box devices by a switch under a distributed architecture; the subtitle information comprises character content, a first coordinate position, a user-specified moving pixel and equipment master-slave information;
the main output box module is used for rendering and displaying the text content according to the first coordinate position if the current output box device is the main output box device, performing coordinate moving rendering on the text content according to the first coordinate position and the moving pixels appointed by the user to obtain a current moving serial number, and notifying each slave output box device of the current moving serial number in real time through a preset method;
the slave output box module is used for rendering and displaying the text content according to the first coordinate position if the current output box device is a slave output box device, monitoring and receiving a second mobile serial number sent by the current master output box device in real time, performing coordinate synchronous analytic calculation according to the first coordinate position, the user-specified mobile pixel and the second mobile serial number to obtain a current second coordinate position, and rendering and synchronously displaying the text content according to the current second coordinate position.
8. The distributed multi-output cartridge device of claim 7, wherein the master output cartridge module comprises: the system comprises an initial main rendering display unit, a mobile display unit and a notification unit;
the initial main rendering display unit is used for determining a first subtitle starting position according to the first coordinate position, and rendering and displaying the text content according to the first subtitle starting position;
the mobile display unit is used for calculating a current third coordinate position according to the first caption initial position, a user-specified mobile pixel and the current mobile serial number; wherein, the initial value of the current mobile serial number is 1; moving the text content to the left to the current third coordinate position, and rendering the text content; wherein, the text content moves once to the left, and the current moving sequence number is added with 1 on the basis of the last moving sequence number;
the notification unit is configured to determine the current movement sequence number according to the movement sequence number when the current third coordinate position is calculated, broadcast the current movement sequence number through a UDP protocol, and notify each slave output box device of the current movement sequence number each time the text content moves once.
9. The distributed multi-output cartridge device of claim 7, wherein the slave output cartridge module comprises: the system comprises an initial slave rendering display unit, a monitoring unit, a synchronous calculation unit and a synchronous display unit;
the initial slave rendering and displaying unit is used for determining a second subtitle starting position according to the first coordinate position, and rendering and displaying the text content according to the second subtitle starting position;
the monitoring unit is used for monitoring and receiving a second mobile serial number sent by the current main output box equipment in real time;
the synchronous calculation unit is configured to calculate the current second coordinate position according to the second subtitle start position, the user-specified moving pixel, and the second moving sequence number, where a formula is as follows: = X2- (pix × i 2); wherein Sc is the current second coordinate position, X2 is the second caption start position, pix is the user-specified moving pixel, and i2 is the second moving sequence number;
and the synchronous display unit is used for rendering and synchronously displaying the text content according to the current second coordinate position.
10. A system for synchronized display of distributed multi-device roll-to-roll subtitles, comprising: the system comprises a server, a switch, a client, an input computer signal source, input box equipment, a large display screen and a plurality of output box equipment; wherein the number of output box devices perform the synchronous display method of the distributed multi-device roll captions of any one of claims 1-6;
wherein, the connection of equipment is as follows: the server is connected with the switch, the client is connected with the switch, the input box equipment is connected with the switch, the output box equipment is connected with the switch, the input box equipment is connected with the input computer signal source, and the output box equipment is connected with the large display screen.
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