CN111182356A - Method and system for realizing double-screen different display of Android video playing - Google Patents

Method and system for realizing double-screen different display of Android video playing Download PDF

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Publication number
CN111182356A
CN111182356A CN201911421864.XA CN201911421864A CN111182356A CN 111182356 A CN111182356 A CN 111182356A CN 201911421864 A CN201911421864 A CN 201911421864A CN 111182356 A CN111182356 A CN 111182356A
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window
module
display
mediaplayer
android
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Chinese (zh)
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肖术骏
潘海东
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Zhuhai Six Point Intelligent Technology Co Ltd
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Zhuhai Six Point Intelligent Technology Co Ltd
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Priority to CN201911421864.XA priority Critical patent/CN111182356A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/443OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4438Window management, e.g. event handling following interaction with the user interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/4104Peripherals receiving signals from specially adapted client devices
    • H04N21/4122Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/485End-user interface for client configuration

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Software Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention relates to the field of Android systems, and particularly provides a method and a system for realizing double-screen different display of Android video playing, wherein the method comprises the steps of respectively creating 1 Presentation window and 1 SurfaceView window through a Mediaplayer of an Android system; adding an API application program interface to the MediaPlayer of the Android Java frame layer; a Java local interface layer of the Android system converts the Presentation window and the SurfaceView window set by the MediaPlayer into 2 image producer objects; setting the image producer object to a local layer of an Android system; the MediaPlayer of the local layer of the Android system realizes video playing double-screen different display through logic processing, and the method and the structure solve the problem that although an application program of the Android system in the prior art can realize double-screen different display through a Presentation API, in a video playing scene, if two screens are required to display video playing contents, the application program can only be switched to double-screen same display, so that the use is inconvenient.

Description

Method and system for realizing double-screen different display of Android video playing
Technical Field
The invention relates to the field of Android systems, in particular to a method and a system for realizing double-screen different display of Android video playing.
Background
The android platform is developed specially for a mobile phone intelligent display terminal, however, an application program of the existing android system can realize dual-screen different display through Presentation API, but in a video playing scene, if the content of video playing is required to be displayed on two screens, the dual-screen different display can be switched to the dual-screen same display, namely, the native android system can not support different display when the video playing is displayed on the two screens simultaneously, and the use is inconvenient.
Disclosure of Invention
The invention mainly aims to provide a method and a system for realizing double-screen different display of Android video playing, which are convenient to use and can realize double-screen different display based on an Android system;
in order to achieve the purpose, the invention adopts the technical scheme that:
in a first aspect, the invention provides a method for implementing dual-screen different display of Android video playing, which includes:
respectively creating 1 Presentation window and 1 surfaceView window through a Mediaplayer of an Android system;
adding an API application program interface to the MediaPlayer of the Android Java frame layer;
a Java local interface layer of the Android system converts the Presentation window and the SurfaceView window set by the MediaPlayer into 2 image producer objects;
setting the image producer object to a local layer of an Android system;
the MediaPlayer of the local layer of the Android system realizes video playing double-screen different display through logic processing.
Further, the MediaPlayer includes a media playing service and a player instance;
the MediaPlayer of the local layer of the Android system implements video playing double-screen different display through logic processing, and specifically includes:
the media playing service program creates different player instances according to the type of the output video;
the MediaPlayer of the local layer of the Android system acquires 2 image producer objects through cross-process calling;
the media play service checks the validity of both of the image producer objects,
and after the image producer object is judged to be successfully checked, the image producer object is set to the player example, so that the playing is realized.
Further, the determining, when the checking is successful, sets the image producer object to the player instance, so as to implement playing, specifically including:
the player instance respectively creates 2 local window objects;
acquiring window information and display layer information contained in the image producer object;
setting the local window object according to the window information and the display layer information;
and the acquired video data are decoded and then respectively transmitted to 2 paths of local windows and then respectively transmitted to different screen outputs by a display engine, so that the double-screen different display of the video output is realized.
On the other hand, the invention also provides a system for realizing the double-screen different display of the Android video playing, which comprises a window creating module, an interface module, a window converting module, a processing module and a display module;
all modules are connected with each other;
the window creation module is used for respectively creating 1 Presentation window and 1 SurfaceView window through a Mediaplayer of an Android system;
the interface module is used for adding an API application program interface in the MediaPlayer of the Android Java frame layer;
the window conversion module is used for converting the Presentation window and the surfaceView window set by the MediaPlayer into 2 image producer objects by a Java local interface layer of an Android system;
the processing module is used for setting the image producer object to a local layer of an Android system;
the display module is used for realizing video playing double-screen different display through logic processing by the MediaPlayer in the local layer of the Android system.
Further, the system for implementing the dual-screen different display of the Android video playing further comprises a process calling module;
the process calling module is connected with the rest modules;
the MediaPlayer comprises a media playing service program and a player instance;
the display module is configured to implement video playing dual-screen differential display by the MediaPlayer of the local layer of the Android system through logic processing, and specifically includes:
the processing module is further used for controlling the media playing service program to create different player instances according to the output video types;
the process calling module is used for the MediaPlayer of the local layer of the Android system to obtain 2 image producer objects through cross-process calling;
the processing module is further configured to check the validity of the two image producer objects by the media play service,
and the display module is also used for setting the image producer object to the player example after the checking is successful, so as to realize the playing.
Further, the system for implementing dual-screen different display of Android video playing further comprises a window creation module and a decoding module;
the window creating module and the decoding module are connected with the other modules;
the display module is further configured to determine that the image producer object is set to the player instance after the checking is successful, so as to implement playing, and specifically includes:
the window creating module is used for controlling the player instance to create 2 local window objects respectively;
the processing module is further used for acquiring window information and display layer information contained in the image producer object;
the display module is further configured to set the local window object according to the window information and the display layer information;
the decoding module is used for decoding the acquired video data and then respectively transmitting the decoded video data to 2 local windows and then respectively transmitting the decoded video data to different screen outputs by the display engine, thereby realizing the double-screen different display of the video output.
By adopting the method and the structure, the invention realizes the double-screen different display of video playing by setting the window creating module, the interface module, the window converting module, the processing module and the display module, is compatible with the native player frame of Android, and does not influence other third-party players, thereby solving the problem that the application program of the Android system in the prior art can only be switched into the double-screen same display if two screens are required to display the content of video playing although the double-screen different display can be realized by the Presentation API, namely the native Android system can not support different display when the video playing is simultaneously displayed on the two display screens, thereby causing inconvenient use.
Drawings
Fig. 1 is a flowchart of a method according to an embodiment of a method for implementing dual-screen different display of Android video playing;
FIG. 2 is a flowchart of a method of another embodiment of the method for implementing dual-screen different display for Android video playing of the present invention;
FIG. 3 is a flowchart of a method of another embodiment of the method for implementing dual-screen different display for Android video playing of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a dual-screen different display implementation system for Android video playing according to the present invention;
the number designations in the figures are: 10-window creating module, 20-interface module, 30-window converting module, 40-processing module, 50-display module, 60-process calling module, 70-window creating module, 80-decoding module,
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In a first aspect, as shown in fig. 1, the present invention provides a method for implementing dual-screen different display for Android video playing, which is characterized by comprising:
s100, respectively creating 1 Presentation window and 1 SurfaceView window through a Mediaplayer of an Android system;
s200, adding an API application program interface in the MediaPlayer of the Android Java frame layer;
s300, converting the Presentation window and the SurfaceView window set by the MediaPlayer into 2 image producer objects by a Java local interface layer of an Android system;
s400, setting the image producer object to a local layer of an Android system;
s500, the MediaPlayer in the local layer of the Android system realizes video playing double-screen different display through logic processing.
Further, the MediaPlayer includes a media playing service and a player instance;
as shown in fig. 2, the step S500 specifically includes:
s510, the media playing service program creates different player instances according to the output video types;
s520, the MediaPlayer in the local layer of the Android system acquires 2 image producer objects through cross-process calling;
s530, the media playing service program checks the validity of the two image producer objects;
and S540, after the checking is judged to be successful, setting the image producer object to the player example, thereby realizing the playing.
Further, as shown in fig. 3, the step S540 specifically includes:
s541, the player instance respectively creates 2 local window objects;
s542, acquiring window information and display layer information contained in the image producer object;
s543, setting the local window object according to the window information and the display layer information;
and S544, the obtained video data are decoded and then respectively transmitted to 2 local windows and then respectively transmitted to different screen outputs by the display engine, so that double-screen different display of video output is realized.
On the other hand, as shown in fig. 4, the present invention further provides a dual-screen different display implementation system for Android video playing, including a window creating module 10, an interface module 20, a window converting module 30, a processing module 40, and a display module 50;
all modules are connected with each other;
the window creating module 10 is configured to create 1 Presentation window and 1 surfaview window respectively through Mediaplayer of the Android system;
the interface module 20 is used for adding an API application program interface to the MediaPlayer of the Android Java frame layer;
the window conversion module 30 is used for the Java local interface layer of the Android system to convert the Presentation window and the SurfaceView window set by the MediaPlayer into 2 image producer objects;
the processing module 40 is configured to set the image producer object to a local layer of the Android system;
the display module 50 is used for the MediaPlayer of the local layer of the Android system to realize video playing double-screen different display through logic processing.
Further, as shown in fig. 4, the system for implementing dual-screen different display for Android video playing further includes a process calling module 60;
the process calling module 60 is connected with the rest of the modules;
the MediaPlayer comprises a media playing service program and a player instance;
the display module 50 is configured to implement video playing dual-screen differential display by the MediaPlayer of the local layer of the Android system through logic processing, and specifically includes:
the processing module 40 is further configured to control the media playing service program to create different player instances according to the output video types;
the process calling module 60 is used for the MediaPlayer of the local layer of the Android system to obtain 2 image producer objects through cross-process calling;
the processing module 40 is further adapted to check the validity of both said image producer objects by said media play service,
the display module 50 is further configured to determine that the image producer object is set to the player instance after the checking is successful, so as to implement playing.
Further, as shown in fig. 4, the system for implementing dual-screen different display for Android video playing further includes a window creating module 70 and a decoding module 80;
the window creation module 70 and the decoding module 80 are connected with the remaining modules;
the display module 50 is further configured to determine that the image producer object is set to the player instance after the checking is successful, so as to implement playing, and specifically includes:
the window creating module 70 is configured to control the player instance to create 2 local window objects respectively;
the processing module 40 is further configured to obtain window information and display layer information included in the image producer object;
the display module 50 is further configured to set the local window object according to the window information and the display layer information;
the decoding module 80 is configured to decode the acquired video data, transmit the decoded video data to 2 local windows, and transmit the decoded video data to different screen outputs by the display engine, so as to implement dual-screen different display of video output.
In a specific application scenario of the present invention, when a user plays using the present invention, the system firstly creates 1 Presentation window and 1 SurfaceView window respectively by the Mediaplayer of the Android system through the window creation module 10, then the system adds an API application program interface to the Mediaplayer of the Android Java frame layer through the interface module 20, then the system converts the Presentation window and the SurfaceView window set by the Mediaplayer into 2 image producer objects through the window conversion module 30 by the Java local interface layer of the Android system, then the system sets the image producer objects to the local layer of the Android system through the processing module 40, and finally the Mediaplayer used for the local layer of the Android system through the display module 50 realizes video playing dual-screen differential display through logic processing, and when the display module 50 realizes video playing dual-screen differential display by the Mediaplayer of the local layer of the Android system through logic processing, the system further controls the media playing service program to create different player instances according to the output video types through the processing module 40, then the system obtains 2 image producer objects through cross-process calling by the MediaPlayer in the local layer of the Android system through the process calling module 60, then the system checks the validity of the two image producer objects through the processing module 40 by the media playing service program, and finally the display module 50 is further configured to determine that the image producer objects are set to the player instances to realize playing after the checking is successful, and when the system controls the display module 50 to determine that the image producer objects are set to the player instances to realize playing after the checking is successful, the window creating module 70 controls the player instances to respectively create 2 local window objects, then, the system control processing module 40 obtains window information and display layer information contained in the image producer object, then the system sets the local window object according to the window information and the display layer information through the display module 50, and finally, the obtained video data are decoded through the decoding module 80, then respectively transmitted to 2 local windows and then respectively transmitted to different screen outputs through the display engine, thereby realizing the dual-screen different display of video output.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Claims (6)

1. A method for realizing dual-screen different display of Android video playing is characterized by comprising the following steps:
respectively creating 1 Presentation window and 1 surfaceView window through a Mediaplayer of an Android system;
adding an API application program interface to the MediaPlayer of the Android Java frame layer;
a Java local interface layer of the Android system converts the Presentation window and the SurfaceView window set by the MediaPlayer into 2 image producer objects;
setting the image producer object to a local layer of an Android system;
the MediaPlayer of the local layer of the Android system realizes video playing double-screen different display through logic processing.
2. The method for implementing dual-screen different display for Android video playing of claim 1, wherein the MediaPlayer includes a media playing service program and a player instance;
the MediaPlayer of the local layer of the Android system implements video playing double-screen different display through logic processing, and specifically includes:
the media playing service program creates different player instances according to the type of the output video;
the MediaPlayer of the local layer of the Android system acquires 2 image producer objects through cross-process calling;
the media play service checks the validity of both of the image producer objects,
and after the image producer object is judged to be successfully checked, the image producer object is set to the player example, so that the playing is realized.
3. The method for implementing dual-screen different display for Android video playing according to claim 2, wherein the determining sets the image producer object to the player instance after the checking is successful, so as to implement playing specifically includes:
the player instance respectively creates 2 local window objects;
acquiring window information and display layer information contained in the image producer object;
setting the local window object according to the window information and the display layer information;
and the acquired video data are decoded and then respectively transmitted to 2 paths of local windows and then respectively transmitted to different screen outputs by a display engine, so that the double-screen different display of the video output is realized.
4. A dual-screen different display implementation system for Android video playing is characterized by comprising a window creation module, an interface module, a window conversion module, a processing module and a display module;
all modules are connected with each other;
the window creation module is used for respectively creating 1 Presentation window and 1 SurfaceView window through a Mediaplayer of an Android system;
the interface module is used for adding an API application program interface in the MediaPlayer of the Android Java frame layer;
the window conversion module is used for converting the Presentation window and the surfaceView window set by the MediaPlayer into 2 image producer objects by a Java local interface layer of an Android system;
the processing module is used for setting the image producer object to a local layer of an Android system;
the display module is used for realizing video playing double-screen different display through logic processing by the MediaPlayer in the local layer of the Android system.
5. The system for implementing dual-screen different display for Android video playing of claim 4, further comprising a process calling module;
the process calling module is connected with the rest modules;
the MediaPlayer comprises a media playing service program and a player instance;
the display module is configured to implement video playing dual-screen differential display by the MediaPlayer of the local layer of the Android system through logic processing, and specifically includes:
the processing module is further used for controlling the media playing service program to create different player instances according to the output video types;
the process calling module is used for the MediaPlayer of the local layer of the Android system to obtain 2 image producer objects through cross-process calling;
the processing module is further configured to check the validity of the two image producer objects by the media play service,
and the display module is also used for setting the image producer object to the player example after the checking is successful, so as to realize the playing.
6. The system for implementing dual-screen different display for Android video playing of claim 5, further comprising a window creation module and a decoding module;
the window creating module and the decoding module are connected with the other modules;
the display module is further configured to determine that the image producer object is set to the player instance after the checking is successful, so as to implement playing, and specifically includes:
the window creating module is used for controlling the player instance to create 2 local window objects respectively;
the processing module is further used for acquiring window information and display layer information contained in the image producer object;
the display module is further configured to set the local window object according to the window information and the display layer information;
the decoding module is used for decoding the acquired video data and then respectively transmitting the decoded video data to 2 local windows and then respectively transmitting the decoded video data to different screen outputs by the display engine, thereby realizing the double-screen different display of the video output.
CN201911421864.XA 2019-12-31 2019-12-31 Method and system for realizing double-screen different display of Android video playing Pending CN111182356A (en)

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Application publication date: 20200519