CN114157902A - Wireless screen projection method, system and storage medium - Google Patents
Wireless screen projection method, system and storage medium Download PDFInfo
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- CN114157902A CN114157902A CN202111460895.3A CN202111460895A CN114157902A CN 114157902 A CN114157902 A CN 114157902A CN 202111460895 A CN202111460895 A CN 202111460895A CN 114157902 A CN114157902 A CN 114157902A
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- 238000004891 communication Methods 0.000 claims abstract description 91
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43076—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of the same content streams on multiple devices, e.g. when family members are watching the same movie on different devices
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Controls And Circuits For Display Device (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a wireless screen projection method, a wireless screen projection system and a storage medium, wherein the method comprises the following steps: s01, connecting the source equipment with a screen projection terminal in a communication manner; s02, screen projection terminal information and the current state are obtained; s03, carrying out play control takeover and pretreatment on the screen projection terminal and the data to be projected according to the screen projection terminal information and the current state; s04, the screen projection terminal receives and plays the preprocessed data to be projected; the communication connection condition between the source equipment and the screen projection equipment and the network speed condition are ingeniously used for sending the screen projection data to be projected to the screen projection terminal, so that the screen projection terminal can be played when the screen projection data are to be projected, the screen projection terminal is more efficient, smooth and stable, a plurality of network connection types are arranged between the screen projection terminal and the source equipment, the communication types between the screen projection terminal and the source equipment can be selected through different communication priorities, the screen projection terminal and the source equipment can perform wireless screen projection in a high-quality communication environment, and the transmission speed and the stability of the screen projection data are improved.
Description
Technical Field
The invention relates to the technical field of wireless screen projection, in particular to a wireless screen projection method, a wireless screen projection system and a storage medium.
Background
As the data playing and transmitting technology of video wireless projection screen is popular nowadays, with the increasing of the playing materials, the amount of high-quality playing materials is also increasing, and video projection screen also becomes a more and more user-friendly playing means, however, most of the current cloud video projection screen or local terminal mutually transmit video projection screen data in a way of directly adopting streaming media, under the condition of good network state, the streaming media playing has the advantages of timely data display and short waiting time, but once the condition of large network fluctuation is met, the defects of video data transmission in the form of streaming media can be directly shown, such as abnormal conditions of picture loss, pause or direct disconnection and the like, so that how to improve the stability of wireless projection screen and the fluency of video content playing of projection screen terminals are very significant subjects.
Disclosure of Invention
In view of the above, the present invention provides a wireless screen projection method, system and storage medium with reliable implementation and stable and smooth playing.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a wireless screen projection method comprises the following steps:
s01, connecting the source equipment with a screen projection terminal in a communication manner;
s02, screen projection terminal information and the current state are obtained;
s03, carrying out play control takeover and pretreatment on the screen projection terminal and the data to be projected according to the screen projection terminal information and the current state;
and S04, the screen projection terminal receives and plays the preprocessed data to be screen projected.
As a possible implementation, further, S01 includes:
s011, acquiring the communication connection type of the screen projection terminal;
s012, judging the number of the communication connection types of the screen projection terminal,
when the number of the communication connection types of the screen projection terminals is 1, the source equipment adopts the communication connection type adaptive to the screen projection terminals to establish communication connection with the screen projection terminals according to the communication connection types of the screen projection terminals;
and when the number of the communication connection types of the screen projection terminal is more than 1, the source equipment adopts the communication connection type adaptive to the screen projection terminal to establish communication connection with the screen projection terminal according to the preset priority.
As a better implementation choice, preferably, the communication connection type of the screen projection terminal includes more than one of bluetooth, wifi and a communication operator network;
when the communication connection type of the screen projection terminal comprises Bluetooth, wifi and a communication operator network, the source equipment is connected with the screen projection terminal according to the preset priority of the wifi, the communication operator network and the Bluetooth in sequence.
As a better implementation choice, preferably, when the communication connection type of the screen projection terminal includes wifi, when the source device and the screen projection terminal are located within a network service range of the same router, a local area network communication is established, the source device, the screen projection terminal and the router are in communication connection, the source device transmits the data to be projected to the router, and the router transmits the data to be projected to the screen projection device for playing.
As a preferred implementation choice, it is preferred that the screen projection terminal information acquired in S02 includes a display resolution of the screen projection terminal and a manufacturer signal of the screen projection terminal; the current state of the screen projection terminal comprises a standby state and a third-party content playing state;
the data to be projected in S02 and S03 are video data.
As a preferred embodiment, it is preferred that S03 includes
S031, according to the screen projection terminal information configuration and the screen projection terminal adaptive SDK, then access screen projection terminal to play state control, make it enter standby state;
s032, the source equipment sends test data to the screen projection terminal and receives returned response data of the screen projection terminal after completely receiving the test data to generate communication delay information;
s033, generating a single data transmission parameter according to the communication delay information;
s034, according to the single data transmission parameters, dividing the data to be screen-projected of the source equipment, generating the data to be transmitted and sequentially transmitting the data to be transmitted to the screen-projecting terminal.
As a preferred implementation option, it is preferred that in S032, the calculation formula of the communication delay information is as follows
T＝|T1-T2|
Wherein T is communication delay information, T1Time node T for source equipment to receive response data returned by screen projection terminal2A time node for starting sending test data for the source device;
in S033, the calculation formula of the single transmission parameter is
M＝N/T
Wherein, M is a single transmission parameter, the unit of which is mega/second, N is the data size of the test data, and T is communication delay information;
in S034, according to the single data transmission parameter, the file playing duration of the data to be screened in mxq unit data size is determined, where Q is time,
when the playing time length is longer than Q, the data to be projected of the source equipment is not divided, and the data is directly processed into a video stream form and is sent to the screen projection terminal;
when the playing time length is less than or equal to Q, dividing the data to be screen-projected of the source equipment into 2 parts, directly setting the data to be transmitted as the data to be transmitted, and sequentially transmitting the data to the screen-projecting terminal, wherein the second part of the data to be screen-projected is a video stream, in addition, after the screen-projecting terminal completely receives the first part of the preprocessed data to be screen-projected in S04, the data enters a playing state, the screen-projecting terminal performs data caching when receiving the second part of the preprocessed data to be screen-projected, and immediately plays the second part of the data to be screen-projected after the first part of the data to be screen-projected is played, and the time consumed by the screen-projecting terminal for completely receiving the second part of the data to be screen-projected is less than the playing time length of the complete data to be screen-projected.
Based on the above scheme, the present invention further provides a wireless screen projection system, which includes:
the screen projection terminal is used for receiving and playing screen projection data;
the source equipment comprises a communication module, a storage module, a data processing module and a data transmission module,
wherein, the communication module is used for being in communication connection with the screen projection terminal,
the storage module is used for storing the data to be projected,
the data processing module is used for acquiring the information and the current state of the screen projection terminal, carrying out play control taking over on the screen projection terminal and preprocessing the data to be projected according to the information and the current state of the screen projection terminal,
the data transmission module is used for transmitting the preprocessed screen data to be projected to the screen projection terminal.
As a preferred implementation choice, preferably, the source device is a mobile phone, a notebook computer or a tablet computer; the screen projection terminal is a projector or a display.
Based on the above scheme, the present invention further provides a computer-readable storage medium, where at least one instruction, at least one program, a code set, or an instruction set is stored in the storage medium, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded by a processor and executed to implement the wireless screen projection method.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: the communication connection condition between the source equipment and the screen projection equipment and the network speed condition are ingeniously used for sending the screen projection data to be projected to the screen projection terminal, so that the screen projection terminal can be played when the screen projection data are to be projected, the screen projection terminal is more efficient, smooth and stable, a plurality of network connection types are arranged between the screen projection terminal and the source equipment, the communication types between the screen projection terminal and the source equipment can be selected through different communication priorities, the screen projection terminal and the source equipment can perform wireless screen projection in a high-quality communication environment, and the transmission speed and the stability of the screen projection data are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a schematic implementation of the process of the present invention;
FIG. 2 is a schematic diagram of a schematic connection of the system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Similarly, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive work are within the scope of the present invention.
As shown in fig. 1, the wireless screen projection method in the present scheme includes:
s01, connecting the source equipment with a screen projection terminal in a communication manner;
s02, screen projection terminal information and the current state are obtained;
s03, carrying out play control takeover and pretreatment on the screen projection terminal and the data to be projected according to the screen projection terminal information and the current state;
and S04, the screen projection terminal receives and plays the preprocessed data to be screen projected.
In order to improve the communication quality between the source device and the screen projection terminal, as a possible implementation manner, in this embodiment, S01 further includes:
s011, acquiring the communication connection type of the screen projection terminal;
s012, judging the number of the communication connection types of the screen projection terminal,
when the number of the communication connection types of the screen projection terminals is 1, the source equipment adopts the communication connection type adaptive to the screen projection terminals to establish communication connection with the screen projection terminals according to the communication connection types of the screen projection terminals;
and when the number of the communication connection types of the screen projection terminal is more than 1, the source equipment adopts the communication connection type adaptive to the screen projection terminal to establish communication connection with the screen projection terminal according to the preset priority.
In the scheme, as a better implementation choice, preferably, the communication connection type of the screen projection terminal comprises more than one of Bluetooth, wifi and a communication operator network;
when the communication connection type of the screen projection terminal comprises Bluetooth, wifi and a communication operator network, the source equipment is connected with the screen projection terminal according to the preset priority of the wifi, the communication operator network and the Bluetooth in sequence.
As a better implementation choice, preferably, when the communication connection type of the screen projection terminal includes wifi, when the source device and the screen projection terminal are located within a network service range of the same router, a local area network communication is established, the source device, the screen projection terminal and the router are in communication connection, the source device transmits the data to be projected to the router, and the router transmits the data to be projected to the screen projection device for playing.
As a preferred implementation choice, it is preferred that the screen projection terminal information acquired in S02 includes a display resolution of the screen projection terminal and a manufacturer signal of the screen projection terminal; the current state of the screen projection terminal comprises a standby state and a third-party content playing state;
the data to be projected in the schemes S02 and S03 are video data.
Since the data transmission speed between the source device and the screen projection terminal is determined by different communication modes, in the present scheme, as a preferred implementation choice, preferably, S03 includes
S031, according to the screen projection terminal information configuration and the screen projection terminal adaptive SDK, then access screen projection terminal to play state control, make it enter standby state;
s032, the source equipment sends test data to the screen projection terminal and receives returned response data of the screen projection terminal after completely receiving the test data to generate communication delay information;
s033, generating a single data transmission parameter according to the communication delay information;
s034, according to the single data transmission parameters, dividing the data to be screen-projected of the source equipment, generating the data to be transmitted and sequentially transmitting the data to be transmitted to the screen-projecting terminal.
In this embodiment, as a preferred implementation choice, preferably, in S032, the calculation formula of the communication delay information is
T＝|T1-T2|
Wherein T is communication delay information, T1Time node T for source equipment to receive response data returned by screen projection terminal2A time node for starting sending test data for the source device;
in S033, the calculation formula of the single transmission parameter is
M＝N/T
Wherein, M is a single transmission parameter, the unit of which is mega/second, N is the data size of the test data, and T is communication delay information;
in S034, according to the single data transmission parameter, the file playing duration of the data to be screened in mxq unit data size is determined, where Q is time,
when the playing time length is longer than Q, the data to be projected of the source equipment is not divided, and the data is directly processed into a video stream form and is sent to the screen projection terminal;
when the playing time length is less than or equal to Q, dividing the data to be screen-projected of the source equipment into 2 parts, directly setting the data to be transmitted as the data to be transmitted, and sequentially transmitting the data to the screen-projecting terminal, wherein the second part of the data to be screen-projected is a video stream, in addition, after the screen-projecting terminal completely receives the first part of the preprocessed data to be screen-projected in S04, the data enters a playing state, the screen-projecting terminal performs data caching when receiving the second part of the preprocessed data to be screen-projected, and immediately plays the second part of the data to be screen-projected after the first part of the data to be screen-projected is played, and the time consumed by the screen-projecting terminal for completely receiving the second part of the data to be screen-projected is less than the playing time length of the complete data to be screen-projected.
Through the method, the data transmission speed between the source equipment and the screen projection terminal can be roughly calculated, then the screen projection data to be projected are divided based on the communication speed obtained through rough testing, and then the screen projection data are sent to the screen projection terminal one by one, so that the synchronism and the continuity of the screen projection terminal in playing and data receiving can be realized as far as possible, the embarrassing situation that the screen projection data which are not played are not transmitted to the screen projection terminal after the received screen projection data are played by the screen projection terminal is avoided, and the screen projection data can be reliably, stably and smoothly sent to the screen projection terminal by selecting the transmission mode of the screen projection data based on the communication speed between the source equipment and the screen projection terminal in a humanized and efficient manner.
As shown in fig. 2, based on the above scheme, the present solution further provides a wireless screen projection system, which includes:
the screen projection terminal is used for receiving and playing screen projection data;
the source equipment comprises a communication module, a storage module, a data processing module and a data transmission module,
wherein, the communication module is used for being in communication connection with the screen projection terminal,
the storage module is used for storing the data to be projected,
the data processing module is used for acquiring the information and the current state of the screen projection terminal, carrying out play control taking over on the screen projection terminal and preprocessing the data to be projected according to the information and the current state of the screen projection terminal,
the data transmission module is used for transmitting the preprocessed screen data to be projected to the screen projection terminal.
As a preferred implementation choice, preferably, the source device is a mobile phone, a notebook computer or a tablet computer; the screen projection terminal is a projector or a display.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be substantially or partially implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A wireless screen projection method is characterized by comprising the following steps:
s01, connecting the source equipment with a screen projection terminal in a communication manner;
s02, screen projection terminal information and the current state are obtained;
s03, carrying out play control takeover and pretreatment on the screen projection terminal and the data to be projected according to the screen projection terminal information and the current state;
and S04, the screen projection terminal receives and plays the preprocessed data to be screen projected.
2. The wireless screen projection method of claim 1, wherein S01 comprises:
s011, acquiring the communication connection type of the screen projection terminal;
s012, judging the number of the communication connection types of the screen projection terminal,
when the number of the communication connection types of the screen projection terminals is 1, the source equipment adopts the communication connection type adaptive to the screen projection terminals to establish communication connection with the screen projection terminals according to the communication connection types of the screen projection terminals;
and when the number of the communication connection types of the screen projection terminal is more than 1, the source equipment adopts the communication connection type adaptive to the screen projection terminal to establish communication connection with the screen projection terminal according to the preset priority.
3. The wireless screen projection method of claim 2, wherein the communication connection type of the screen projection terminal comprises one or more of bluetooth, wifi and a communication operator network;
when the communication connection type of the screen projection terminal comprises Bluetooth, wifi and a communication operator network, the source equipment is connected with the screen projection terminal according to the preset priority of the wifi, the communication operator network and the Bluetooth in sequence.
4. The wireless screen projection method of claim 3, wherein when the communication connection type of the screen projection terminal comprises wifi, when the source device and the screen projection terminal are located within the network service range of the same router, local area network communication is established, the source device, the screen projection terminal and the router are in communication connection, the source device transmits the data to be projected to the router, and the router transmits the data to be projected to the screen projection device for playing.
5. The wireless screen projection method according to any one of claims 1 to 4, wherein the screen projection terminal information acquired at S02 includes a display resolution of the screen projection terminal and a manufacturer signal of the screen projection terminal; the current state of the screen projection terminal comprises a standby state and a third-party content playing state;
the data to be projected in S02 and S03 are video data.
6. The wireless screen projection method of claim 5, wherein S03 includes
S031, according to the screen projection terminal information configuration and the screen projection terminal adaptive SDK, then access screen projection terminal to play state control, make it enter standby state;
s032, the source equipment sends test data to the screen projection terminal and receives returned response data of the screen projection terminal after completely receiving the test data to generate communication delay information;
s033, generating a single data transmission parameter according to the communication delay information;
s034, according to the single data transmission parameters, dividing the data to be screen-projected of the source equipment, generating the data to be transmitted and sequentially transmitting the data to be transmitted to the screen-projecting terminal.
7. The wireless screen projection method of claim 6, wherein in S032, the communication delay information is calculated by the formula
T＝|T1-T2|
Wherein T is communication delay information, T1Time node T for source equipment to receive response data returned by screen projection terminal2A time node for starting sending test data for the source device;
in S033, the calculation formula of the single transmission parameter is
M＝N/T
Wherein, M is a single transmission parameter, the unit of which is mega/second, N is the data size of the test data, and T is communication delay information;
in S034, according to the single data transmission parameter, the file playing duration of the data to be screened in mxq unit data size is determined, where Q is time,
when the playing time length is longer than Q, the data to be projected of the source equipment is not divided, and the data is directly processed into a video stream form and is sent to the screen projection terminal;
when the playing time length is less than or equal to Q, dividing the data to be screen-projected of the source equipment into 2 parts, directly setting the data to be transmitted as the data to be transmitted, and sequentially transmitting the data to the screen-projecting terminal, wherein the second part of the data to be screen-projected is a video stream, in addition, after the screen-projecting terminal completely receives the first part of the preprocessed data to be screen-projected in S04, the data enters a playing state, the screen-projecting terminal performs data caching when receiving the second part of the preprocessed data to be screen-projected, and immediately plays the second part of the data to be screen-projected after the first part of the data to be screen-projected is played, and the time consumed by the screen-projecting terminal for completely receiving the second part of the data to be screen-projected is less than the playing time length of the complete data to be screen-projected.
8. A wireless screen projection system, comprising:
the screen projection terminal is used for receiving and playing screen projection data;
the source equipment comprises a communication module, a storage module, a data processing module and a data transmission module,
wherein, the communication module is used for being in communication connection with the screen projection terminal,
the storage module is used for storing the data to be projected,
the data processing module is used for acquiring the information and the current state of the screen projection terminal, carrying out play control taking over on the screen projection terminal and preprocessing the data to be projected according to the information and the current state of the screen projection terminal,
the data transmission module is used for transmitting the preprocessed screen data to be projected to the screen projection terminal.
9. The wireless screen projection system of claim 8, wherein the source device is a cell phone, a laptop or a tablet; the screen projection terminal is a projector or a display.
10. A computer-readable storage medium, characterized in that: the storage medium stores at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the wireless screen projection method according to one of claims 1 to 7.
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| CN118012683A (en) * | 2024-04-08 | 2024-05-10 | 建信金融科技有限责任公司 | Screen throwing test method and screen throwing test system |
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