CN112866784A - Large-screen local playback control method, control system, equipment and storage medium - Google Patents
Large-screen local playback control method, control system, equipment and storage medium 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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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
- H04N21/44—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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
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Abstract
The invention discloses a large-screen local playback control method, a control system, equipment and a storage medium, wherein the method comprises the following steps: after the whole wall playback content of the spliced wall is obtained, receiving an input zooming instruction; screening the echo code stream in the area needing to be zoomed by the zoom instruction, and cutting and zooming the echo code stream to obtain local echo content by splicing; and transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content. The method can perform zooming operations such as amplification and dragging on the entire wall echoed content according to the input zooming instruction so as to preview the local echoed content through high-definition roaming on the premise of ensuring the image quality and no tearing of image synchronization, has good use experience, and is suitable for large-scale popularization and application.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to a large-screen local redisplay control method, a control system, equipment and a storage medium.
Background
With the development of image processing and image display technologies, large-screen video splicing walls are widely applied, and flexible configuration and attractive visual effects of the large-screen video splicing walls are popular to more and more users.
The video splicing wall is generally placed in an auditorium, a monitoring room, a command room, a conference room, and the like, and is composed of a plurality of displays, such as a Light Emitting Diode (LED) Display or a Liquid Crystal Display (LCD) Display. Each display on the video mosaic wall can display a video image separately, or can be combined together through the displays on the video mosaic wall to display a video image together.
In practical use, the video splicing wall needs to be capable of realizing the function of displaying the whole wall. The whole-wall playback display means that the video image displayed in the video mosaic wall can be transmitted to other terminal devices (hereinafter referred to as playback terminals), such as a notebook computer, a tablet computer, a mobile phone and other devices. After the whole-wall playback function is started, the video images displayed on the video splicing wall can be synchronously seen through the playback terminal, and the video images displayed on the video splicing wall are controlled to meet the requirements of various services.
At present, if a video image displayed in a video splicing wall is synchronously transmitted to a playback terminal through a whole-wall playback function, a whole-screen image with a fixed resolution ratio is generally transmitted, a local area cannot be amplified and dragged, only a whole-wall image with a resolution ratio matched with a display reduced by several times is presented, and the pixel loss from the whole-wall image of a large wall to the whole-wall image of the display is several times.
Therefore, how to improve the existing video mosaic wall playback technology to overcome the above-mentioned drawbacks, or to provide a completely new video mosaic wall playback technology to increase its practicability, becomes one of the important research subjects of those skilled in the art.
The above information is given as background information only to aid in understanding the present disclosure, and no determination or admission is made as to whether any of the above is available as prior art against the present disclosure.
Disclosure of Invention
The invention provides a large-screen local playback control method, a large-screen local playback control system, large-screen local playback control equipment and a large-screen local playback control storage medium, which aim to overcome the defects of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the first aspect of the embodiment of the invention discloses a large-screen local playback control method;
as an alternative implementation, in the first aspect of the embodiment of the present invention, the method includes:
after the whole wall playback content of the spliced wall is obtained, receiving an input zooming instruction;
screening the echo code stream in the area needing to be zoomed by the zoom instruction, and cutting and zooming the echo code stream to obtain local echo content by splicing;
and transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content.
As an optional implementation manner, in the large-screen local playback control method, before the step of receiving a zoom instruction after obtaining the whole-wall playback, the method further includes:
acquiring a back display code stream of the spliced wall;
and acquiring the configuration information of the spliced wall, and cutting and zooming the echoing codes according to the configuration information so as to splice to obtain the echoing content of the whole wall.
As an optional implementation manner, in the large-screen local playback control method, after the step of obtaining the playback code stream of the spliced wall, the method further includes:
and decoding the echo code stream.
As an optional implementation manner, in the large-screen local playback control method, before the step of transferring the received control instruction to the playback terminal in the playback control mode to control the playback terminal to playback the local playback content, the method further includes:
detecting whether an instruction for entering a playback control mode is received;
and if so, entering the playback control mode.
The second aspect of the embodiment of the invention discloses a large-screen local playback control system;
as an alternative implementation, in the second aspect of the embodiment of the present invention, the system includes:
the instruction receiving module is used for receiving an input zooming instruction after the content of the whole wall back display of the spliced wall is obtained;
the screening and splicing module is used for screening the echo code stream in the area needing to be zoomed by the zooming instruction, and cutting and zooming the echo code stream so as to splice to obtain local echo content;
and the local playback module is used for transmitting the received control instruction to the playback terminal in a playback control mode so as to control the playback terminal to perform playback on the local playback content.
As an optional implementation manner, in the large-screen local playback control system, the system further includes:
the back display acquisition module is used for acquiring the back display code stream of the spliced wall after the whole wall back display is obtained and before the step of receiving the zooming instruction;
and the obtaining and splicing module is used for obtaining the configuration information of the spliced wall and cutting and zooming the echoed codes according to the configuration information so as to splice to obtain the echoed contents of the whole wall.
As an optional implementation manner, in the large-screen local playback control system, the system further includes:
and the playback decoding module is used for decoding the playback code stream after the step of acquiring the playback code stream of the spliced wall.
As an optional implementation manner, in the large-screen local playback control system, the system further includes:
the instruction detection module is used for transmitting the received control instruction to the playback terminal in the playback control mode so as to detect whether an instruction for entering the playback control mode is received or not before the step of controlling the playback terminal to playback the local playback content;
and the mode entering module is used for entering the playback control mode if receiving an instruction for entering the playback control mode.
A third aspect of the embodiments of the present invention discloses a computer device;
as an optional implementation manner, in the third aspect of the embodiment of the present invention, the computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the large-screen local back-display control method according to any one of the above aspects when executing the computer program.
A fourth aspect of the embodiments of the present invention discloses a storage medium containing computer-executable instructions;
as an alternative implementation manner, in the fourth aspect of the embodiment of the present invention, the computer executable instructions are executed by a computer processor to implement the large screen local playback control method according to any one of the above aspects.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the large-screen local redisplay control method, the control system, the equipment and the storage medium, zooming operations such as zooming and dragging can be performed on the content of the entire wall redisplay according to the input zooming instruction, so that the local redisplay content can be previewed through high-definition roaming on the premise of ensuring the image quality and the image synchronization without tearing, the use experience is good, and the method, the control system and the equipment are suitable for large-scale popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a large-screen local playback control method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a large-screen local playback control method according to a second embodiment of the present invention;
fig. 3 is a schematic flow chart of a large-screen local playback control method according to a third embodiment of the present invention;
fig. 4 is a functional block diagram of a large-screen local playback control system according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device according to a fifth 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.
It is to be noted that the terms "first" and "second" and the like in the description and the claims of the present invention are used for distinguishing different objects, and are not used for describing a specific order. The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a large-screen local redisplay control method, a control system, equipment and a storage medium, which can take a redisplay terminal as a local redisplay preview terminal to present a local high-definition picture and improve the use experience of people.
Example one
In view of the defects of the prior art, the inventor of the invention actively researches and innovates based on the practical experience and professional knowledge which are abundant for many years in the field of screen splicing display and cooperates with the application of the theory, so as to create a feasible large-screen local redisplay control technology, thereby leading the large-screen local redisplay control technology to have higher practicability. After continuous research, design and repeated trial and improvement, the invention with practical value is finally created.
Referring to fig. 1, fig. 1 is a schematic flow chart of a large-screen local playback control method according to an embodiment of the present invention, where the method is suitable for a scene in which playback content of a whole wall is displayed by local enlarging and dragging, and the method is executed by a large-screen local playback control system, and the system may be implemented by software and/or hardware and is integrated inside a terminal. As shown in fig. 1, the large-screen local playback control method may include the following steps:
s101, receiving an input zooming instruction after the content of the whole wall back display of the spliced wall is obtained.
The input zoom instruction is generally an operation instruction sent by a user through an accessed mouse or touch screen or other operation devices, such as a scroll wheel zoom-in, a long-press mouse left button drag, and the like.
It should be noted that the content of the entire wall playback refers to the content displayed after splicing the playback code streams of the multi-node spliced wall into the playback code streams of the entire wall.
In this embodiment, the technical premise for realizing high-definition local playback is that when Time is synchronized through NTP (Network Time Protocol), the Time is approximately synchronized with nodes in the system, splicing wall nodes in the system need to be highly synchronized, and the splicing wall nodes need to encode frames of the same picture and output code streams, so that synchronization of playback can be ensured.
S102, screening the echo code stream in the area needing to be zoomed by the zooming instruction, and cutting and zooming the echo code stream to obtain local echo content through splicing.
It should be noted that, in this step, a picture display area corresponding to the zoom instruction is obtained on the spliced wall based on the zoom instruction, and is cut and zoomed, and then the cut picture display areas are spliced together according to the node layout information of the spliced screen corresponding to the cut picture display areas, so as to finally obtain the spliced local playback content.
S103, transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content.
It should be noted that the playback terminal may be a terminal device capable of displaying a picture, such as a computer (desktop computer or notebook computer), an iPad (tablet computer), or a mobile phone.
The echoing terminal can be connected with the splicing wall through a wiring harness (suitable for near-end control), and also can be connected through wireless communication protocols such as wifi, the Internet, Bluetooth and the like (suitable for near-end control).
In this embodiment, after the cut and spliced local playback content is transmitted to the playback terminal, the local playback content is displayed on the playback terminal. Of course, the local echo content may also be encoded into an IP video and then output through a network.
According to the large-screen local redisplay control method provided by the embodiment of the invention, zooming operations such as zooming and dragging can be carried out on the content of the entire wall redisplay according to the input zooming instruction, so that the local redisplay content can be previewed through high-definition roaming on the premise of ensuring the image quality and the image synchronization without tearing, the use experience is good, and the method is suitable for large-scale popularization and application.
Example two
Referring to fig. 2, fig. 2 is a schematic flow chart of a large screen local playback control method according to an embodiment of the present invention. Based on the technical solution provided in the first embodiment, in step S101, "after obtaining the content of the entire wall playback of the spliced wall, and before receiving the input zoom instruction," the present embodiment further optimizes the method. The explanation of the same or corresponding terms as those in the above embodiments is not repeated herein, and specifically, the method provided in this embodiment may further include the following steps:
acquiring a back display code stream of the spliced wall;
and acquiring the configuration information of the spliced wall, and cutting and zooming the echoing codes according to the configuration information so as to splice to obtain the echoing content of the whole wall.
Based on the above optimization, as shown in fig. 2, the method for controlling large-screen local playback provided in this embodiment may include the following steps:
s201, obtaining a playback code stream of the spliced wall.
Further, after the step S201, the method further includes:
and decoding the echo code stream.
It should be noted that, because the spliced wall is composed of a plurality of independent spliced screens, each independent spliced screen corresponds to a node, and the picture areas in charge of each node are different but can assist in outputting a large-screen display picture together, acquiring the playback code stream of the spliced wall actually means acquiring the playback code stream corresponding to each independent spliced screen on the spliced wall.
And decoding the echo code stream to obtain a node code stream corresponding to the echo code stream. In this embodiment, the echo code streams corresponding to each independent node (spliced screen) need to be decoded one by one.
S202, obtaining the configuration information of the spliced wall, and cutting and zooming the echoed codes according to the configuration information to splice to obtain the echoed contents of the whole wall.
It should be noted that the configuration information of the mosaic wall includes the number of rows and columns of the mosaic wall, the resolution of each mosaic screen in the mosaic wall, and the number of the processor that processes the corresponding mosaic screen.
The step is to perform zooming processing and re-splicing on the display content in each spliced screen according to the configuration information of the spliced wall so as to obtain the whole wall back display content which can be displayed on the back display terminal after zooming.
And S203, receiving an input zooming instruction after the whole wall playback content of the spliced wall is obtained.
S204, screening the echo code stream in the area needing to be zoomed by the zooming instruction, and cutting and zooming the echo code stream to obtain local echo content through splicing.
S205, in the playback control mode, transmitting the received control instruction to the playback terminal to control the playback terminal to playback the local playback content.
According to the large-screen local redisplay control method provided by the embodiment of the invention, zooming operations such as zooming and dragging can be carried out on the content of the entire wall redisplay according to the input zooming instruction, so that the local redisplay content can be previewed through high-definition roaming on the premise of ensuring the image quality and the image synchronization without tearing, the use experience is good, and the method is suitable for large-scale popularization and application.
EXAMPLE III
Referring to fig. 3, fig. 3 is a schematic flow chart of a large screen local playback control method according to an embodiment of the present invention. In this embodiment, on the basis of the technical solution provided in the second embodiment, before "in the playback control mode, the received control instruction is transmitted to the playback terminal to control the playback terminal to playback the local playback content" in step S205, the method is further optimized. The explanation of the same or corresponding terms as those in the above embodiments is not repeated herein, and specifically, the method provided in this embodiment may further include the following steps:
detecting whether an instruction for entering a playback control mode is received;
and if so, entering the playback control mode.
Based on the above optimization, as shown in fig. 3, the method for controlling large-screen local playback provided in this embodiment may include the following steps:
s301, obtaining the echo code stream of the spliced wall.
S302, obtaining the configuration information of the spliced wall, and cutting and zooming the echoing codes according to the configuration information to splice to obtain the echoing content of the whole wall.
And S303, receiving an input zooming instruction after the whole wall playback content of the spliced wall is obtained.
S304, screening the echoed code stream in the area needing to be zoomed by the zooming instruction, and cutting and zooming the echoed code stream to obtain local echoed content through splicing.
S305, detecting whether an instruction for entering a playback control mode is received; if so, step S306 is executed, otherwise, step S305 is continued.
It should be noted that the instruction for entering the playback control mode in this embodiment refers to a double-click instruction input by a user through an operation device such as an accessed mouse or a touch screen, and after receiving the double-click instruction, the user can confirm to enter the playback control mode to control the content (whole or partial) to be played back.
And S306, entering the playback control mode.
And S307, transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content.
According to the large-screen local redisplay control method provided by the embodiment of the invention, zooming operations such as zooming and dragging can be carried out on the content of the entire wall redisplay according to the input zooming instruction, so that the local redisplay content can be previewed through high-definition roaming on the premise of ensuring the image quality and the image synchronization without tearing, the use experience is good, and the method is suitable for large-scale popularization and application.
Example four
Referring to fig. 4, fig. 4 is a functional module schematic diagram of a large-screen local playback control system according to a fourth embodiment of the present invention, where the system is suitable for executing the large-screen local playback control method according to the fourth embodiment of the present invention. The system specifically comprises the following modules:
the instruction receiving module 401 is configured to receive an input zoom instruction after obtaining the content of the entire wall playback of the spliced wall;
a screening and splicing module 402, configured to screen out the echo code stream in the region where the scaling instruction needs to be scaled, and perform clipping and scaling to splice to obtain local echo content;
a local playback module 403, configured to transmit a received control instruction to a playback terminal in a playback control mode, so as to control the playback terminal to perform playback on the local playback content.
Preferably, the system further comprises:
the back display acquisition module is used for acquiring the back display code stream of the spliced wall after the whole wall back display is obtained and before the step of receiving the zooming instruction;
and the obtaining and splicing module is used for obtaining the configuration information of the spliced wall and cutting and zooming the echoed codes according to the configuration information so as to splice to obtain the echoed contents of the whole wall.
Preferably, the system further comprises:
and the playback decoding module is used for decoding the playback code stream after the step of acquiring the playback code stream of the spliced wall.
Preferably, the system further comprises:
the instruction detection module is used for transmitting the received control instruction to the playback terminal in the playback control mode so as to detect whether an instruction for entering the playback control mode is received or not before the step of controlling the playback terminal to playback the local playback content;
and the mode entering module is used for entering the playback control mode if receiving an instruction for entering the playback control mode.
The large-screen local redisplay control system provided by the embodiment of the invention can perform zooming operations such as zooming and dragging on the entire wall redisplay content according to the input zooming instruction so as to preview the local redisplay content through high-definition roaming on the premise of ensuring the image quality and no tearing of image synchronization, has good use experience, and is suitable for large-scale popularization and application.
The system can execute the method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. FIG. 5 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 5 is only an example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention.
As shown in FIG. 5, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by executing programs stored in the system memory 28, for example, implementing a large screen local playback control method provided by an embodiment of the present invention.
That is, the processing unit implements, when executing the program: after the whole wall playback content of the spliced wall is obtained, receiving an input zooming instruction; screening the echo code stream in the area needing to be zoomed by the zoom instruction, and cutting and zooming the echo code stream to obtain local echo content by splicing; and transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content.
EXAMPLE six
The sixth embodiment of the present invention provides a computer-readable storage medium, on which computer-executable instructions are stored, where the instructions, when executed by a processor, implement the large-screen local playback control method provided in all the embodiments of the present invention:
that is, the processor, when executing the executable instructions, implements: after the whole wall playback content of the spliced wall is obtained, receiving an input zooming instruction; screening the echo code stream in the area needing to be zoomed by the zoom instruction, and cutting and zooming the echo code stream to obtain local echo content by splicing; and transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A large-screen local playback control method is characterized by comprising the following steps:
after the whole wall playback content of the spliced wall is obtained, receiving an input zooming instruction;
screening the echo code stream in the area needing to be zoomed by the zoom instruction, and cutting and zooming the echo code stream to obtain local echo content by splicing;
and transmitting the received control instruction to a playback terminal in a playback control mode so as to control the playback terminal to playback the local playback content.
2. The large-screen local playback control method according to claim 1, wherein before the step of receiving a zoom instruction after obtaining the whole-wall playback, the method further comprises:
acquiring a back display code stream of the spliced wall;
and acquiring the configuration information of the spliced wall, and cutting and zooming the echoing codes according to the configuration information so as to splice to obtain the echoing content of the whole wall.
3. The large-screen local playback control method according to claim 2, wherein after the step of obtaining the playback code stream of the spliced wall, the method further comprises:
and decoding the echo code stream.
4. The large-screen local playback control method according to claim 1, wherein before the step of transferring the received control instruction to the playback terminal to control the playback terminal to playback the local playback content in the playback control mode, the method further comprises:
detecting whether an instruction for entering a playback control mode is received;
and if so, entering the playback control mode.
5. A large screen local playback control system, the system comprising:
the instruction receiving module is used for receiving an input zooming instruction after the content of the whole wall back display of the spliced wall is obtained;
the screening and splicing module is used for screening the echo code stream in the area needing to be zoomed by the zooming instruction, and cutting and zooming the echo code stream so as to splice to obtain local echo content;
and the local playback module is used for transmitting the received control instruction to the playback terminal in a playback control mode so as to control the playback terminal to perform playback on the local playback content.
6. The large screen local playback control system of claim 5, further comprising:
the back display acquisition module is used for acquiring the back display code stream of the spliced wall after the whole wall back display is obtained and before the step of receiving the zooming instruction;
and the obtaining and splicing module is used for obtaining the configuration information of the spliced wall and cutting and zooming the echoed codes according to the configuration information so as to splice to obtain the echoed contents of the whole wall.
7. The large screen local playback control system of claim 6, further comprising:
and the playback decoding module is used for decoding the playback code stream after the step of acquiring the playback code stream of the spliced wall.
8. The large screen local playback control system of claim 5, further comprising:
the instruction detection module is used for transmitting the received control instruction to the playback terminal in the playback control mode so as to detect whether an instruction for entering the playback control mode is received or not before the step of controlling the playback terminal to playback the local playback content;
and the mode entering module is used for entering the playback control mode if receiving an instruction for entering the playback control mode.
9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the large screen local playback control method according to any one of claims 1 to 4.
10. A storage medium containing computer executable instructions for execution by a computer processor to implement the large screen local playback control method of any one of claims 1 to 4.
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