CN112954417A - Method for realizing synchronous playing and seamless material switching of multiple terminal devices - Google Patents
Method for realizing synchronous playing and seamless material switching of multiple terminal devices Download PDFInfo
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- CN112954417A CN112954417A CN202110140282.5A CN202110140282A CN112954417A CN 112954417 A CN112954417 A CN 112954417A CN 202110140282 A CN202110140282 A CN 202110140282A CN 112954417 A CN112954417 A CN 112954417A
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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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the technical field of multimedia information release, and discloses a method for realizing synchronous playing and seamless material switching of multi-terminal equipment, which comprises the following steps: the method comprises the steps of time synchronization of multiple terminal devices, calculating played time T5 of the current round according to current time T4, calculating the sequence of materials needing to be played currently of the terminal devices in a material list according to the played time T5 of the current round, calculating played time T6 of the materials needing to be played currently, calculating the remaining played time T7 of the current materials, starting a first player to play the materials by the terminal devices, starting playing at the time point of subtracting the played time T6 of the current materials from the played time of the current materials, playing the remaining time T7 of the materials, and calling a second player by a program to preload the next material content of the materials. The technical scheme of the invention can realize synchronous playing of multiple terminal devices, realize seamless switching playing among multiple materials, effectively eliminate the phenomenon of black screen and realize complete playing of program materials.
Description
Technical Field
The invention relates to the technical field of multimedia information release, in particular to a method for realizing synchronous playing and seamless material switching of multi-terminal equipment.
Background
Under different application scenes in various industry fields, multiple terminal devices are required to play program contents consistently, however, the multiple terminal devices have the problem of picture asynchronism when playing the program contents, and the problems of screen blackness, incomplete playing and the like exist when switching and playing between program materials, and the main reasons are as follows:
1. the system time of each terminal device is different, and synchronous playing can not be carried out according to a uniform time point;
2. in the current terminal equipment playing mechanism, the terminal equipment starts playing from the first material after receiving the program material, and because the network downloading speeds of the terminal equipment are different, the receiving completion time of the terminal equipment is different, so that the terminal equipment is not played synchronously;
3. after the terminal equipment is restarted and the software is restarted, the terminal equipment plays the first material, and the first material and the other terminal equipment cannot be played synchronously all the time;
4. switching among a plurality of materials in a program, wherein a player needs a certain loading time when playing the current material and then loading the next material, and a display screen is displayed in a black screen state in the loading process of the player, so that when the materials are switched by terminal equipment, a discontinuous black screen phenomenon occurs, and the black screen time is long, so that the last seconds of actual video playing are switched to the next playing material, and finally the program materials are incompletely played;
therefore, a method for realizing seamless program switching and synchronous playing of multiple terminal devices is urgently needed to solve the above problems.
Disclosure of Invention
The invention mainly aims to provide a method for realizing synchronous playing and seamless switching of materials of multi-terminal equipment, aiming at realizing synchronous playing of the materials, seamless switching of the materials, elimination of black screens and realization of complete playing of the materials of the multi-terminal equipment.
In order to achieve the above object, the method for realizing synchronous playing and seamless material switching of multiple terminal devices provided by the present invention comprises the following steps:
the time of the multi-terminal equipment is synchronized, the multi-terminal equipment is connected with a network through a built-in NTP protocol to finish time calibration, and the time of the multi-terminal equipment is always consistent with the time of a server;
forming a material list by all materials to be played in sequence, wherein the material list adopts a circular playing mode, the playing time length of each material is T1, the total time length of one round of playing of the material list is T2, and the starting playing time of the material list is T3;
the terminal equipment is internally provided with a first player and a second player, the played time length T5 of the current round is calculated according to the current time T4, the sequence of the materials needing to be played currently of the terminal equipment in a material list is calculated according to the played time length T5 of the current round, the played time length T6 of the materials needing to be played currently is calculated, and the residual played time length T7 of the current materials is calculated;
the terminal equipment starts a first player to play the material, the time point of the playing time length of the current material minus the playing time length T6 of the current material is played, the residual time length T7 of the material is played, and meanwhile, a program calls a second player to preload the next material content of the material; and
after the first player plays the material content, the program starts the second player to play the next material content of the material, meanwhile, the first player preloads the next material content, seamless switching between the materials is realized by alternately starting the first player and the second player, the black screen is eliminated, and the complete playing of the material is realized.
Further, the multi-terminal time synchronization includes synchronization with a known time server and synchronization with any other terminal device.
Further, the playing time length of the current round is (current time T4-material list start playing time T3)% of the total time length of the program.
Further, the played time length T6 of the current material is the sum of the played time length T5 of the current round and the playing time length of the material before the current material.
Further, the remaining playing time length T7 of the current material is the playing time length of the current material-the played time length T6 of the current played material.
By adopting the technical scheme of the invention, the invention has the following beneficial effects: the technical scheme of the invention is that time calibration is carried out by each terminal device and a server to ensure that the time of each terminal device is consistent with the time of the server, then each terminal device accurately calculates the sequence of the materials to be played currently and the starting time point of the playing of the materials, thereby realizing that a plurality of terminal devices start to play the contents synchronously at any time point, by arranging double players at the terminal devices, when the current player plays the current materials, another player is started by a program to preload the next materials and enable the next materials to be in a standby state, after the current player plays the current materials, the player which finishes loading the materials is started by the program to play, the current player continues to load the next materials and is in the standby state, and the two players alternately preload the materials to work in turn, therefore, the phenomenon of screen blacking caused by waiting for the player to load the materials is effectively avoided, seamless switching playing among a plurality of materials is realized, the phenomenon of screen blacking is effectively eliminated, and the complete playing of the program materials is realized.
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 structures shown in the drawings without creative efforts.
Fig. 1 is an overall flowchart of a method for implementing synchronous playing and seamless material switching of multiple terminal devices according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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 should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a method for realizing synchronous playing and seamless material switching of multiple terminal devices.
As shown in fig. 1, in an embodiment of the present invention, the method for implementing synchronous playing and seamless material switching of multiple terminal devices includes the following steps:
s100: the time of the multi-terminal equipment is synchronized, the multi-terminal equipment is connected with a network through a built-in NTP protocol to finish time calibration, and the time of the multi-terminal equipment is always consistent with the time of a server;
s200: forming a material list by all materials to be played in sequence, wherein the material list adopts a circular playing mode, the playing time length of each material is T1, the total time length of one round of playing of the material list is T2, and the starting playing time of the material list is T3;
s300: the terminal equipment is internally provided with a first player and a second player, the played time length T5 of the current round is calculated according to the current time T4, the sequence of the materials needing to be played currently of the terminal equipment in a material list is calculated according to the played time length T5 of the current round, the played time length T6 of the materials needing to be played currently is calculated, and the residual played time length T7 of the current materials is calculated;
s400: the terminal equipment starts a first player to play the material, the time point of the playing time length of the current material minus the playing time length T6 of the current material is played, the residual time length T7 of the material is played, and meanwhile, a program calls a second player to preload the next material content of the material; and
s500: after the first player plays the material content, the program starts the second player to play the next material content of the material, meanwhile, the first player preloads the next material content, seamless switching between the materials is realized by alternately starting the first player and the second player, the black screen is eliminated, and the complete playing of the material is realized.
Specifically, the multi-terminal device time synchronization includes synchronization with a known time server and synchronization with any other terminal device.
Specifically, the played time length of the current round is (current time T4 — material list start playing time T3)% of the total time length of the program, and% is the remainder.
Specifically, the played time length T6 of the current material is the sum of the played time length T5 of the current round and the playing time length of the material before the current material.
Specifically, the remaining playing time length T7 of the current material is the playing time length of the current material-the played time length T6 of the current playing material.
Specifically, the technical scheme of the invention is that time calibration is carried out on each terminal device and a server to ensure that the time of each terminal device is consistent with the time of the server, then each terminal device accurately calculates the sequence of the materials to be played currently and the play starting time point of the materials, so as to realize that a plurality of terminal devices start to play the contents synchronously at any time point, double players are arranged on the terminal devices, when the current player plays the current materials, another player is started through a program to preload the next materials and enable the next materials to be in a standby state, after the current player plays the current materials, the player which finishes loading the materials is started through the program to play, the current player continues to load the next materials and is in the standby state, and the two players alternately preload the materials and work in turn, therefore, the phenomenon of screen blacking caused by waiting for the player to load the materials is effectively avoided, seamless switching playing among a plurality of materials is realized, the phenomenon of screen blacking is effectively eliminated, and the complete playing of the program materials is realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A method for realizing synchronous playing and seamless material switching of multi-terminal equipment is characterized by comprising the following steps:
the time of the multi-terminal equipment is synchronized, the multi-terminal equipment is connected with a network through a built-in NTP protocol to finish time calibration, and the time of the multi-terminal equipment is always consistent with the time of a server;
forming a material list by all materials to be played in sequence, wherein the material list adopts a circular playing mode, the playing time length of each material is T1, the total time length of one round of playing of the material list is T2, and the starting playing time of the material list is T3;
the terminal equipment is internally provided with a first player and a second player, the played time length T5 of the current round is calculated according to the current time T4, the sequence of the materials needing to be played currently of the terminal equipment in a material list is calculated according to the played time length T5 of the current round, the played time length T6 of the materials needing to be played currently is calculated, and the residual played time length T7 of the current materials is calculated;
the terminal equipment starts a first player to play the material, the time point of the playing time length of the current material minus the playing time length T6 of the current material is played, the residual time length T7 of the material is played, and meanwhile, a program calls a second player to preload the next material content of the material; and
after the first player plays the material content, the program starts the second player to play the next material content of the material, meanwhile, the first player preloads the next material content, seamless switching between the materials is realized by alternately starting the first player and the second player, the black screen is eliminated, and the complete playing of the material is realized.
2. The method of claim 1, wherein the multi-terminal time synchronization comprises synchronization with a known time server and synchronization with any other terminal device.
3. The method as claimed in claim 1, wherein the playing time of the current round is (current time T4-material list start playing time T3)% of the total time of the program.
4. The method as claimed in claim 1, wherein the playing duration T6 of the current material is equal to the sum of the playing duration T5 of the current round and the playing duration of the material before the current material.
5. The method as claimed in claim 1, wherein the remaining playing time T7 is equal to the playing time T6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110140282.5A CN112954417A (en) | 2021-02-01 | 2021-02-01 | Method for realizing synchronous playing and seamless material switching of multiple terminal devices |
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| CN202110140282.5A CN112954417A (en) | 2021-02-01 | 2021-02-01 | Method for realizing synchronous playing and seamless material switching of multiple terminal devices |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113271489A (en) * | 2021-06-15 | 2021-08-17 | 青岛聚看云科技有限公司 | Method for automatically and alternately broadcasting materials and display equipment |
| CN116582708A (en) * | 2023-07-07 | 2023-08-11 | 深圳创维智慧科技有限公司 | Video playing method and device, electronic equipment and readable storage medium |
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Application publication date: 20210611 |